Guide vane for a guide wheel of a pump or turbine having a guide vane body with two end faces, a guide vane leading edge, a guide vane trailing edge, and first and second flow-guiding side faces connecting the vane leading and trailing edges and forming different flow profiles along an axial extension. Each flow profile has a chord, a mean camber line, and a mean camber curve end angle between the mean camber line and the chord at the vane trailing edge. The guide vane is mounted to rotate about an axis of rotation defined by two pivot pins. Along the axial extension, the guide vane has at least one flow profile with a positive mean camber curve end angle and at least one flow profile with a negative mean camber curve end angle. The guide vane leading edge is tilted relative to the axis of rotation.
The invention relates to a guide vane (1) for a guide wheel of a pump or turbine, comprising a guide vane body having two end faces (2), a guide vane leading edge (3), a guide vane trailing edge (4), as well as a first flow-guiding side face (5) and a second flow-guiding side face (5) which connect the guide vane leading edge (3) and the guide vane trailing edge (4) and form different flow profiles (12) along an axial extension, each of which flow profiles (12) has a chord (8), a mean camber line (9), and a mean camber curve end angle () at which the mean camber line (9) is positioned to the chord (8) at the guide vane trailing edge (4), wherein the guide vane (1) can be mounted such that it can rotate about an axis of rotation (7) which, in particular, is defined by two pivot pins (11). In order to minimize losses in a hydroelectric power system and achieve a high efficiency, it is provided according to the invention that, along the axial extension, the guide vane (1) has at least one flow profile (12) with a positive mean camber curve end angle () and at least one flow profile (12) with a negative mean camber curve end angle (). In addition, the invention relates to a method for designing a hydroelectric power system, in particular a pump or turbine, having a guide wheel which comprises guide vanes (1), in particular a Kaplan or Francis turbine, wherein by the varying of design parameters, different variants are formed and flow conditions that can be achieved by implementing the individual variants are determined, in particular by means of a flow simulation or by tests, whereupon, depending on flow conditions that can be achieved, one of the variants is selected, in particular the variant with which an efficiency optimum is obtained.
A method for producing an annular winding head support for a rotor of a rotating electric machine. In order to be able to produce a winding head support for particularly large machines in a simple manner, ring segments are created, after which the ring segments are connected to create a ring that constitutes the winding head support. In addition, the electric machine has a stator and a rotor, with the rotor including at least one winding head at an end side. A winding head support is provided in order to accommodate centrifugal forces occurring during operation.
The object of the present invention is a hydraulic machine intended to be traversed by a forced flow of water, the hydraulic machine comprising a runner (7) and a housing surrounding the runner (7), the runner (7) comprising a plurality of vanes or buckets (2). According to the invention, at least one fixed position sensor (5) is arranged in the housing, the position sensor (5) being arranged next to the path of movement of the vanes or buckets (2) so that it emits a measurement signal when a vane or bucket (2) passes by. In addition, a reference sensor is arranged in the hydraulic machine to detect the current angular position of each vane or bucket (2), so that the dynamic behaviour of each vane or bucket (2) can be determined from this position data.
F03B 1/00 - Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheelsParts or details peculiar thereto
F03B 11/04 - Parts or details not provided for in, or of interest apart from, groups for diminishing cavitation or vibration, e.g. balancing
A rotor for an electric machine, including a laminated core with slots in which bottom bars and top bars are arranged to in an axial direction beyond the laminated core to form a winding overhang. A bottom bar of one slot is respectively connected to a top bar of another slot in the winding overhang and, in a plan view, bottom bars and top bars cross axially outside the laminated core at crossing points and gaps remain between the crossing points. A support device has a retaining body arranged radially inside the winding overhang and at least one clip having two legs and a crosspiece. The is connected to both the retaining body and to a top bar to radially support the top bar by the retaining body. To ensure a robust stabilization of the winding overhang the legs protrude through two gaps adjacent to different top bars.
Electrical machine, e.g., a generator, having a stator comprising a winding overhang, a rotor arranged rotatable in the stator, and a heat exchanger fluidically connected to the winding overhang via a coolant shaft, which is arranged radially outside the winding overhang, runs at least partially approximately along a circumferential direction, and is delimited in a radial direction by an outer surface, so that the winding overhang can be cooled by a continuous flow of a fluid over the heat exchanger and the winding overhang. To obtain uniform cooling of the winding overhang, multiple guiding elements are arranged in a distributed manner along a circumferential direction in the coolant shaft to redirect a flow of a fluid oriented in a circumferential direction in the coolant shaft at least partially into a radial flow towards the winding overhang and to distribute the flow to multiple regions of the winding overhang.
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
The invention relates to a guide vane (1) for an impeller of a pump or a turbine, comprising a guide vane body (2) having a leading edge (3), a trailing edge (4), a chord (5) and at least one pivot pin (6), the guide vane (1) being mounted so as to be rotatable about an axis of rotation (7) which is defined by the pivot pin (6). In order to achieve particularly high efficiency, according to the invention at least sections of the chord (5) of the guide vane (1) are spaced apart from the axis of rotation (7) and/or at least sections of the guide vane body (2) have a surface formed by a freeform surface. The invention also relates to a method for designing a guide vane (1) for an impeller of a pump or a turbine, comprising a guide vane body (2) having a leading edge (3), a trailing edge (4), a chord (5) and two pivot pins (6), the guide vane (1) being mounted so as to be rotatable about an axis of rotation (7) which is defined by the pivot pins (6).
The invention relates to a blade (2) of a Pelton turbine with a trailing edge (6) that is curved at least in sections. According to the invention, in order to achieve particularly high efficiency, the trailing edge (6) forms a rear hump (7) from a side view, wherein, from a side view, a centre of curvature of the hump is positioned below the trailing edge (6) and a vertex (10) of the hump is located closer to the cup root (3) than to the blade end (4).
The invention relates to a sluice gate for a hydropower station having rollers (2) via which the sluice gate can be movably mounted on rails and a sealing surface (3) having a seal (4) with which an upstream water can be sealed off from a downstream water, wherein lubricant lines (5) are provided through which lubricant can be fed to the rollers (2). In order to easily prevent a contamination of a surrounding environment, it is envisaged according to the invention that lubricant return lines (6) connected to the rollers (2) are provided, via which lubricant return lines (6) used lubricant can be guided from the rollers (2) to one or more collection locations in order to be able to collect and properly dispose of used lubricant.The invention furthermore relates to a method for operating a sluice gate of a hydropower station, wherein the sluice gate is moved using rollers (2) mounted on one or more rails in order to seal off an upstream water from a downstream water or to produce a connection between the upstream water and downstream water, wherein lubricant is fed to the rollers (2) through lubricant lines (5).
A sluice gate for a hydropower station, a method of operating a sluice gate and a hydropower station. The sluice gate includes rollers via which the sluice gate can be movably mounted on rails and a sealing surface having a seal with which an upstream water can be sealed off from a downstream water. Lubricant lines are provided through which lubricant can be fed to the rollers and lubricant return lines are connected to the rollers. Via the lubricant return lines, used lubricant can be guided from the rollers to one or more collection locations in order to be able to collect and properly dispose of used lubricant.
The invention relates to a guide vane (1) for a guide wheel of a pump or turbine, comprising a guide vane body. The guide vane body has two end faces (2), a guide vane leading edge (3), a guide vane trailing edge (4), and a first flow-guiding side face (5) and a second flow-guiding side face (5), which connect the guide vane leading edge (3) and the guide vane trailing edge (4) and which form different flow profiles (12) along an axial extent. Said flow profiles each have a chord (8), a mean camber line (9), and a mean camber curve end angle (α) between the mean camber line (9) and the chord (8) at the guide vane trailing edge (4). The guide vane (1) can be rotatably mounted about an axis of rotation (7), which, more particularly is defined by two pivot pins (11). The aim of the invention is to minimize losses in a hydropower system and to achieve high efficiency. To achieve this aim, the guide vane (1) has, along the axial extent, at least one flow profile (12) with a positive mean camber curve end angle (α) and at least one flow profile (12) with a negative mean camber curve end angle (α). The invention also relates to a method for designing a hydropower system, more particularly a pump or turbine, comprising a guide wheel which has guide vanes (1), more particularly a Kaplan turbine or Francis turbine, wherein, by the varying of design parameters, different variants are formed and flow conditions that can be achieved by implementing the individual variants are determined, more particularly by means of a flow simulation or by tests, whereupon, according to flow conditions that can be achieved, one of the variants is selected, more particularly the variant for which an efficiency optimum is achieved.
The invention relates to a hydraulic machine which is designed such that a forced water flow flows through same, wherein the hydraulic machine comprises a rotor (7) and a housing surrounding the rotor (7), wherein the rotor (7) has a plurality of blades or paddles (2). According to the invention, at least one fixed position sensor (5) is arranged in the housing, wherein the position sensor (5) is arranged next to the movement path of the blades or paddles (2), such that it outputs a measurement signal when a blade or paddle (2) passes close by. In addition, a reference sensor is arranged in the hydraulic machine for detecting the current angular position of each blade or paddle (2), such that the dynamic behaviour of each blade or paddles (2) can be determined from this position data.
F03B 1/00 - Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheelsParts or details peculiar thereto
F03B 11/04 - Parts or details not provided for in, or of interest apart from, groups for diminishing cavitation or vibration, e.g. balancing
13.
METHOD FOR PRODUCING AN ANNULAR WINDING HEAD SUPPORT, AND WINDING HEAD SUPPORT
The invention relates to a method for producing an annular winding head support for a rotor (1) of a rotating electric machine. The aim of the invention is to be able to produce a winding head support in a simple manner also for particularly large machines. To this end, it is provided according to the invention that ring segments (6) are formed, wherein the ring segments (6) are connected to a ring (2) forming the winding head support. The invention also relates to an electric machine comprising a stator and a rotor (1), the rotor (1) having at least one winding head on the end side, wherein a winding head support is provided in order to absorb centrifugal forces occurring during operation.
A method for producing a winding head support for a rotor of a rotating electric machine. To enable the production of even particularly large winding head supports in a simultaneously simple manner, it is provided that the winding head support is formed using an additive manufacturing process, in particular by wire arc buildup welding. Embodiments also relate to a winding head support.
The subject of this invention is a casing (2) for a Pelton turbine (1), the casing (2) enclosing the outer circumference of a runner (8). According to the invention, recesses (6) that deflect the splashing water coming from the runner (8) in a direction parallel to the runner shaft (4) of the runner (8) and thus discharge it from the casing (2) are provided on the inside (7) of the casing (2).
F03B 1/00 - Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheelsParts or details peculiar thereto
The invention relates to a housing (2) for a Pelton turbine (1), wherein the housing (2) encloses the outer circumference of a rotor (8). According to the invention, the housing inner face (7) is provided with depressions (6) through which the water spray coming from the rotor (8) is deflected in a direction parallel to the axis (4) of the rotor (8) and can thus be discharged out of the housing (2).
F03B 1/00 - Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on bladed or like rotors, e.g. Pelton wheelsParts or details peculiar thereto
The invention relates to a rotor for an electric machine, comprising a laminated core (1) with slots in which bottom bars (3) and top bars (4) are arranged, which bars extend in an axial direction (5) beyond the laminated core (1) to form a winding overhang, wherein a bottom bar (3) of one slot is respectively connected to a top bar (4) of another slot in the winding overhang and, in a plan view, bottom bars (3) and top bars (4) cross axially outside the laminated core (1) at crossing points (8) and gaps (9) remain between the crossing points (8), wherein a support device is provided which has a retaining body (10) arranged radially inside the winding overhang and at least one clip (11) having two legs (12) and a crosspiece (13), the clip (11) being connected to both the retaining body (10) and to a top bar (4) in order to radially support the top bar (4) by means of the retaining body (10). In order to be able to ensure a robust stabilization of the winding overhang even if only a small spacing is present between the gaps (9), it is provided according to the invention that the legs (12) protrude through two gaps (9) that are adjacent to different top bars (4).
H02K 3/51 - Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
H02K 17/18 - Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
The invention relates to an electrical machine, in particular a generator, having a stator comprising a winding overhang (1), a rotor (13) arranged rotatably about a rotor axis (3) in the stator, and a heat exchanger (6), wherein the heat exchanger (6) is fluidically connected to the winding overhang (1) via a coolant shaft (17), which is arranged radially outside the winding overhang (1), runs at least partially approximately along a circumferential direction (9), and is delimited in a radial direction (8) by an outer surface, so that the winding overhang (1) can be cooled by means of a continuous flow of a fluid over the heat exchanger (6) and the winding overhang (1). In order to obtain a particularly uniform cooling of the winding overhang (1), it is provided according to the invention that multiple guiding elements (11) arranged in a distributed manner along a circumferential direction (9) are provided in the coolant shaft (17) in order to redirect a flow of a fluid oriented in a circumferential direction (9) in the coolant shaft (17) at least partially into a radial flow towards the winding overhang (1) and to distribute the flow to multiple regions of the winding overhang (1).
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
The invention relates to a rotor for an electric machine having a laminated core (1) with slots in which bottom bars (3) and top bars (4) are arranged, which bars extend in an axial direction (5) beyond the laminated core (1) to form a winding overhang, wherein in each case a bottom bar (3) of a slot is connected to a top bar (4) of another slot in the winding overhang and, in a plan view, bottom bars (3) and top bars (4) cross axially outside the laminated core (1) at crossing points (8) and gaps (9) are left between the crossing points (8), wherein a support device is provided which has a retaining element (10) arranged radially inside the winding overhang and at least one U-shaped clip (11) having two legs (12) and a connecting piece (13), the U-shaped clip (11) being connected to both the retaining element (10) and to a top bar (4) in order to radially support the top bar (4) by means of the retaining element (10). In order to also guarantee robust stabilisation of the winding overhang if there is only a small distance between the gaps (9), according to the invention the legs (12) protrude through two gaps (9) that are adjacent to different top bars (4).
H02K 3/51 - Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
H02K 17/18 - Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
The invention relates to an electrical machine, in particular generator, with a stator having a winding head (1), a rotor (13) arranged rotatably about a rotor axis (3) in the stator, and a heat exchanger (6), wherein the heat exchanger (6) is fluidically connected to the winding head (1) via a coolant shaft (17), which is arranged radially outside the winding head (1), runs at least partially approximately along a circumferential direction (9) and is delimited in a radial direction (8) by an outer surface, and therefore the winding head (1) can be cooled by means of a continuous flow of a fluid via the heat exchanger (6) and the winding head (1). In order to achieve a particularly uniform cooling of the winding head (1), provision is made according to the invention for a plurality of guiding elements (11) which are distributed along a circumferential direction (9) to be provided in the coolant shaft (17) in order at least partially to deflect a flow of a fluid, oriented in the circumferential direction (9), in the coolant shaft (17) into a radial flow towards the winding head (1) and to distribute the flow over a plurality of regions of the winding head (1).
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
21.
METHOD FOR PRODUCING A WINDING HEAD SUPPORT, AND WINDING HEAD SUPPORT
The invention relates to a method for producing a winding head support for a rotor (1) of a rotating electric machine. To enable the production of even particularly large winding head supports in a simultaneously simple manner, it is provided according to the invention that the winding head support is formed using an additive manufacturing process, in particular by wire arc buildup welding. The invention further relates to a winding head support.
The invention relates to a method for producing a winding head support for a rotor (1) of a rotating electric machine. The aim of the invention is to allow even particularly large winding head supports to be produced in a simple manner at the same time. According to the invention, this is achieved in that the winding heads support is made using an additive manufacturing process, in particular wire arc additive manufacturing. The invention additionally relates to a winding head support.
09 - Scientific and electric apparatus and instruments
Goods & Services
Automation devices for the control of hydropower plants; Automation devices for the control of generators; Automation devices for the control of turbines; Automation devices for the control of power switches and circuit breakers; Electrical signaling devices for power plants; Electrical measuring devices for power plants; Electrical counting devices for power plants; Electrical monitoring devices for power plants; Electrical control devices for power plants; Electrical regulating devices for power plants; Electrical switching devices for power plants
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Automation of hydropower plants; Automation devices for the control of hydropower plants; Automation devices for the control of generators; Automation devices for the control of turbines; Automation devices for the control of power switches and circuit breakers; Hardware and Software for the operation of hydropower plants; Electrical signalling devices for power plants; Electrical measuring devices for power plants; Electrical counting devices for power plants; Electrical monitoring devices for power plants; Electrical control devices for power plants; Electrical regulating devices for power plants; Electrical switching devices for power plants (1) Technological services for the control of hydropower plants; Technological services for the optimization of operations of hydropower plants; Technological services for the construction of hydropower plants; Technological services for the rehabilitation of hydropower plants; Operation and maintenance of hydropower plants; Energy production
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Hydroelectric installations for generating electricity. Industrial automation controls; Industrial automation software; Industrial process control software; Control devices (Automatic -); Electronic control systems for machines; Power switches; Electrical signalling apparatus; Electrical controlling devices; Electronic control instruments; Measuring, detecting, monitoring and controlling devices. Installation of hydropower systems; Maintenance and repair of wave energy power plants; Repair or maintenance of power distribution or control machines and apparatus. Generation of electricity from wave energy; Production of energy by power plants. Development of energy and power management systems; Technological consultancy in the fields of energy production and use; Technological consultancy.
26.
Power generation plant having a Kaplan, bulb, diagonal flow or propeller turbine
A power generation plant including a turbine (1) of a Kaplan, bulb, diagonal flow or propeller turbine type, a water intake (4) and a water run-off (5). Additional vanes vane (8) are deployable into a water passage formed between the water intake (4) and the housing of the turbine. Eddy flows formed in the water intake (4) are reduced by the additional vanes. The vanes allow the turbine operating range to be extended to cover smaller outputs.
F03B 3/18 - Stator bladesGuide conduits or vanes, e.g. adjustable
F03B 3/06 - Machines or engines of reaction typeParts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines with adjustable blades, e.g. Kaplan turbines
The invention relates to a power generation plant with a Kaplan, bulb, diagonal flow or propeller turbine (1), a water intake (4) and a water run-off (5). It is primarily characterized in that one or several additional vanes (8) that can be inserted into the water intake (4) are provided in the water intake (4). As a result, eddy formation in the water intake (4) can be reduced substantially, thus enabling the operating range to be extended to cover smaller outputs.
F03B 3/06 - Machines or engines of reaction typeParts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines with adjustable blades, e.g. Kaplan turbines
F03B 3/18 - Stator bladesGuide conduits or vanes, e.g. adjustable
The invention relates to a runner (1) for a hydraulic turbine, pump or pump turbine, in particular for a Francis turbine, which runner (1) can be mounted such that it can be rotated about a rotational axis (10) and has runner blades (4) which are arranged around the rotational axis (10) along a circumferential direction, wherein the runner (1) has at least two runner parts which are connected to one another via contact surfaces (9). In order to achieve a simple manufacturing capability, it is provided according to the invention that the contact surfaces (9) are positioned and oriented in such a way that a moment can be transmitted about the rotational axis (10) between the runner parts substantially via forces tangentially with respect to the contact surfaces (9).
09 - Scientific and electric apparatus and instruments
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Generators; Electrical generator plant; Electric power generators; Electric generator power sets; Turbines for power generation; System control instruments (Mechanical -). Battery packs; Electronic control systems. Production of hydroelectric power. Development of energy and power management systems; Programming of electronic control systems.
The invention relates to a runner (1) for a hydraulic turbine, pump or pump turbine, in particular for a Francis turbine, which runner (1) can be mounted such that it can be rotated about a rotational axis (10) and has runner blades (4) which are arranged around the rotational axis (10) along a circumferential direction, wherein the runner (1) has at least two runner parts which are connected to one another via contact surfaces (9). In order to achieve a simple manufacturing capability, it is provided according to the invention that the contact surfaces (9) are positioned and oriented in such a way that a moment can be transmitted about the rotational axis (10) between the runner parts substantially via forces tangentially with respect to the contact surfaces (9).
The invention relates to a liquid cooling method for a hydroelectric generator (1) which cools the winding (4) of the rotor (2) via a primary cooling liquid circuit, said cooling liquid being maintained in the circuit by the produced centrifugal force. The dissipation of the thermal energy takes place via a secondary cooling liquid (9) which flows once vertically through the system. According to the invention, said thermal exchange takes place via a co-rotating heat exchanger (6) in the center of the rotor. The invention also relates to a device for carrying out such a method.
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
32.
HYDRAULIC POWER GENERATOR AND METHODS FOR THE PRODUCTION AND OPERATION THEREOF
The invention relates to a hydraulic power generator (1) designed as a synchronous electric machine which has an air-cooled rotor (2) and a stator (3) and which comprises at least eight poles (19) formed by the rotor windings (7). The invention also relates to a method for manufacturing the disclosed hydraulic power generator (1) as well as a method for operating same.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/02 - Arrangements for cooling or ventilating by ambient air flowing through the machine
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Data processing equipment namely computers, computer hardware; computer operating software, computer diagnostic software for troubleshooting in the nature of diagnosing hardware and software problems, computer software for recording and documenting hydro power plant operations; computer utility programs for providing diagnostic details on devices installed in hydro power plants; electric installations for the remote control of industrial operations namely electric control panels; electric regulating apparatus namely voltage regulators; cloud servers (1) Updating and maintenance of data in computer databases; compilation of statistics; systemization of information into computer databases namely database management, updating and maintenance of data in computer databases; compilation of information into computer databases
(2) Maintenance of hydro power plants
(3) Operation of hydro power plants for the generation of electricity
(4) Maintenance and updating of computer software; computer software consultancy; consultancy in the field of energy-saving; information technology [IT] consultancy namely, computer hardware, software and networking systems consultation services; cloud computing providing software for operating hydro power plants; computer system analysis; mechanical and electrical engineering services, engineering design services for hydro power plant equipment; electronic data storage namely, cloud computing provider services for general storage of data; installation of software; quality control namely monitoring, controlling and improving plant efficiency, plant availability and power quality in hydro power generation plants; server hosting; software as a service [SaaS] featuring software for use in the operation of hydro power plants; technical project studies in the field of hydro power plant engineering; technological consultancy in the field of hydro power plant engineering; maintenance of software
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Data processing equipment; software; data processing
apparatus; diagnostic apparatus, not for medical purposes;
electric installations for the remote control of industrial
operations; regulating apparatus, electric; measuring
instruments; memories for data processing equipment; cloud
servers; predictive maintenance software. Updating and maintenance of data in computer databases;
compilation of statistics; collection and systematisation of
information into computer databases. Machinery maintenance services; maintenance of industrial
machinery; maintenance services for industrial plants;
providing information relating to the repair or maintenance
of power generators. Maintenance of software; maintenance and updating of
computer software; computer software consultancy;
consultancy in the field of energy-saving; information
technology [IT] consultancy; cloud computing; computer
system analysis; engineering services; electronic data
storage; installation of software; outsource service
providers in the field of information technology; quality
control; server hosting; software as a service [SaaS];
technical project studies; technological consultancy.
A Pelton runner with a wheel disk and separately fabricated buckets (2), which may be cast or made from a solid block of material and secured detachably to the wheel disk (1), fastened by at least one screw (5) or at least one bolt. At least one screw or at least one bolt is designed as an expansion screw (5) or expansion bolt, where the expansion screw (5) or expansion bolt is subjected to controlled pre-stressing, and each bucket (2) has at least one expansion screw (5) or expansion bolt that is arranged perpendicular to the axis of rotation of the wheel disk (1) and secured to the wheel disk (1).
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Data processing equipment; software for use in operation of hydro power plants; data processing apparatus; diagnostic apparatus, not for medical purposes, for identifying the status of turbines and electrical generators; electric installations for the remote control of industrial operations; apparatus for regulating electric current; measuring instruments, namely, electrical sensors; memories for data processing equipment; cloud computing servers; predictive maintenance software for use in predicting maintenance of turbines and electrical generators Updating and maintenance of data in computer databases; compilation of statistics; collection and systematisation of information into computer databases Machinery maintenance services; maintenance of industrial machinery; maintenance services for industrial plants; providing information relating to the repair or maintenance of power generators Maintenance of software; maintenance and updating of computer software; computer software consultancy; consulting services in the field of energy measurement to improve energy efficiency; information technology IT consultancy; cloud computing featuring software for use in operation of hydro power plants; computer system analysis; engineering services; electronic data storage; installation of software; outsource service providers in the field of information technology; quality control for others; server hosting; software as a service SaaS featuring software for use in operation of hydro power plants; conducting technical project feasibility studies; technological consultancy in the field of hydro power plant engineering
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Data processing equipment; Software; Data processing apparatus; Diagnostic apparatus, not for medical purposes; Electric installations for the remote control of industrial operations; Regulating apparatus, electric; Measuring instruments; Memories for data processing equipment; Cloud servers; Predictive maintenance software. Updating and maintenance of data in computer databases; Compilation of statistics; Collection and systematisation of information into computer databases. Machinery maintenance services; Maintenance of industrial machinery; Maintenance services for industrial plants; Providing information relating to the repair or maintenance of power generators. Maintenance of software; Maintenance and updating of computer software; Computer software consultancy; Consultancy in the field of energy-saving; Information technology [IT] consultancy; Cloud computing; Computer system analysis; Engineering services; Electronic data storage; Installation of software; Outsource service providers in the field of information technology; Quality control; Server hosting; Software as a service [SaaS]; Technical project studies; Technological consultancy.
39.
DEVICE AND METHOD FOR REDUCING LUBRICANT LOSSES IN BEARINGS
The subject matter of this invention is formed by a device having a rotatable shaft (1) which is mounted in a stationary housing (2) with the aid of at least one shaft bearing (3), wherein the shaft bearing (3) is lubricated with a lubricant, preferably oil. According to the invention, in addition to the shaft bearing (3), a fan (4) is fastened on the shaft (1), by way of which fan (4) a positive pressure is generated during rotation of the shaft (1) in the region (5) between the fan (4) and the shaft bearing (3), with the result that an escape of lubricant is prevented or at least reduced as a result. However, the subject matter of said invention is also formed by a method for reducing lubricant leaks in shaft bearings (3) in the case of rotating shafts (1) with the aid of a fan (4) which is fastened on the shaft (1).
An assembly of rotor blades and hub for a turbine, such as a tidal current turbine. Each rotor blade includes a cavity and at least two ribs extending into the cavity at a radially inward (lower) region of the rotor blade. The hub includes a journal for each blade and the journal extends into the cavity and is supported by the at least two ribs.
F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
The invention relates to a rotor blade (1) for a turbine. According to the invention, this rotor blade (1) has a cavity (10) and at least two ribs (32, 32', 42, 42', 52, 52', 62, 62', 72, 72') at the lower end of said rotor blade. The invention further relates to a turbine, particularly a tidal current turbine, having at least two, preferably three, rotor blades (1) according to the invention. The design according to the invention means that the rotor blade is sufficiently stable even with smaller diameters of the lower end, and the proportion of the overall length of the rotor blade for energy recovery can be substantially increased.
F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
The invention relates to a rotor blade (1) for a turbine. According to the invention, this rotor blade (1) has a cavity (10) and at least two ribs (32, 32', 42, 42', 52, 52', 62, 62', 72, 72') at the lower end of said rotor blade. The invention further relates to a turbine, particularly a tidal current turbine, having at least two, preferably three, rotor blades (1) according to the invention. The design according to the invention means that the rotor blade is sufficiently stable even with smaller diameters of the lower end, and the proportion of the overall length of the rotor blade for energy recovery can be substantially increased.
F03B 13/26 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using tide energy
The winding overhang of the rotor of an electrical machine is subject to strong centrifugal forces during operation, especially when the machines run at high speed. The winding overhang support prevents the production of relative movements between the winding overhang and the rotor base. These movements result in strong mechanical stresses on the winding bars. The winding overhang support includes an inner ring and an outer ring between which the winding bars are arranged in the region of the winding overhang, the outer ring being shrunk on the inner ring and both the outer ring and the inner ring being interspaced from the lamination stack.
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 3/51 - Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
H02K 3/52 - Fastening salient pole windings or connections thereto
46.
SPIRAL CASING OF A TURBOMACHINE, AND METHOD FOR PRODUCING A SPIRAL CASING OF A TURBOMACHINE
The invention relates to a spiral casing (1) of a turbomachine, in particular a turbine, pump or pump turbine, which consists of a number of segments (2) which are arranged one behind another in the circumferential direction and are connected to one another at the respective end sides, having guide devices at the inlet to the support blades (3). It is characterized in that individual guide segments (9) are provided which are composed of plastic. Furthermore, the invention relates to a method for producing a spiral casing (1) of a turbomachine and the guide devices of the latter, wherein guide segments (9) are cast from plastic. As a result of the manufacture of individual guide segments (9) from plastic, simple adaptation to the changing contour of the spiral (1) and satisfactory and secure fastening can be ensured.
The present invention relates to a winding overhang support for the rotor (1) of an electric generator, comprising at least one ring (4), which absorbs the centrifugal forces of the windings (3) in the winding overhang area. According to the invention, the ring (4) is produced from a composite material, wherein the ring is produced before the ring (4) is installed. The present invention further relates to a corresponding method for producing a winding overhang support for a generator.
The invention relates to a guide apparatus for turbomachines, in particular for Francis or Kaplan turbines or pumps or pump turbines having a plurality of guide blades (3) which can be actuated via in each case one link (4) on a common adjusting member (5). Here, every guide blade or every second guide blade can be equipped with a safety element. It is principally characterized in that a bending-failure link (6) which can have a screw connection and a bending body (7) is provided as safety element. The screw connection is prestressed and is configured with a defined fracture cross section (12). The triggering force on the bending-failure link (6) and the holding force after a fracture of the safety element can therefore be selected independently of one another. The guide blades are protected against damage by foreign bodies in the guide apparatus.
A method and apparatus for fault detection of series diodes in rectifiers is disclosed, wherein the voltages across one or both of the individual diodes, and/or the voltage across the pair of diodes are measured to determine a ratio between two of those voltages. The ratio is then analyzed to determine if a fault (e.g., a short circuit or an open circuit) is present. In some embodiments, circuitry can be included to compensate for the normal variations in diode characteristics (e.g., reverse leakage current, reverse recovery charge) between the pair of series diodes to minimize the potential for erroneous fault detection.
The winding overhang of the rotor of an electrical machine is subject to strong centrifugal forces during operation, especially when the machines run at high speed. The aim of the invention is therefore to devise a winding overhang support which prevents the production of relative movements between the winding overhang and the rotor base, said relative movements resulting in strong mechanical stresses on the winding bars. The invention relates to a winding overhang support which consists of an inner ring (12) and an outer ring (10) between which the winding bars (5, 6) are arranged in the region of the winding overhang (7), the outer ring (10) being shrunk on the inner ring (12) and both the outer ring (10) and the inner ring (12) being interspaced from the lamination stack (3).
The winding overhang of the rotor of an electrical machine is subject to strong centrifugal forces during operation, especially when the machines run at high speed. The aim of the invention is therefore to devise a winding overhang support which prevents the production of relative movements between the winding overhang and the rotor base, said relative movements resulting in strong mechanical stresses on the winding bars. The invention relates to a winding overhang support which consists of an inner ring (12) and an outer ring (10) between which the winding bars (5, 6) are arranged in the region of the winding overhang (7), the outer ring (10) being shrunk on the inner ring (12) and both the outer ring (10) and the inner ring (12) being interspaced from the lamination stack (3).
H02K 3/51 - Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
H02K 3/52 - Fastening salient pole windings or connections thereto
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
The invention relates to a device and a method that can enable generators (1) for producing electrical energy to be kept stable on the network during and following a line failure, such as a voltage dip. This requirement is defined in the network connection conditions of many network operators and must be observed for installations of a certain power. According to the invention, during a line failure, a load (10, 10') is inserted, enabling the energy that can no longer be supplied to the electric network due to the voltage drop to be absorbed by the load (10, 10').
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02H 9/00 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
53.
APPARATUS AND METHOD FOR PRODUCING WORKPIECES HAVING A SURFACE MADE OF RUST-PROOF METAL
The invention relates to a method for producing workpieces having a surface made of rust-proof material. According to the invention, a workpiece 4 is cast from unalloyed steel and then immersed in a bath 2 made of liquid rust-proof material and coated with a layer of rust-proof material. The invention further relates to an apparatus which comprises a crucible 1 and a lifting gear 3 and is provided for carrying out the method according to the invention.
C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
C23C 2/04 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor characterised by the coating material
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Maintenance, restoration, repair and rebuilding services for
hydraulic, electric, mechanical and electromechanical plants
and machines (except for vehicles), especially for power
plants, for generators and for hydraulic turbines;
maintenance and restoration services for control and
regulating systems for the above mentioned plants and
machines; measurement services for the above mentioned
plants and machines. Technical project studies, engineering, technological
consulting (business consulting excluded), technical studies
and economical evaluations (based on technological
considerations) for hydraulic, electric, mechanical and
electromechanical plants and machines (except for vehicles),
especially for power plants, for generators and for
hydraulic turbines; creation of computer programs for
simulation, visualization and control of hydraulic,
electric, mechnical and electromechanical plants and
machines (except vehicles), especially for power plants, for
generators and for machines hydraulic turbines; quality
control, namely verification of hydraulic, electric,
mechanical and electromechanical plants and machines (except
vehicles), especially power plants, generators and hydraulic
turbines; drafting expert opinions regarding the condition
of the above-mentioned plants and machines.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Hydraulic, electric, mechanical and electromechanical
machines and parts thereof, hydraulic, electric, mechanical
and electromechanical machines for hydraulic power stations,
generators, transformers, turbines, turbine generator units,
modules consisting of a plurality of turbine generator
units, weirs, locks and parts thereof, cranes and part
thereof. Electric and electronic apparatus and instruments, apparatus
for control and regulation of electric, mechanical and
electromechanical plants, machines, turbines, generators,
transformers, weirs, locks and parts thereof; apparatus for
control of hydraulic power stations; computer software for
simulation, visualization and control of electric,
mechanical and electromechanical plants, machines, turbines,
generators, transformers, weirs, locks and parts thereof;
computer software for simulation, visualization and control
of hydraulic power stations. Building, commissioning, operation, maintenance,
restoration, rebuilding of hydraulic, electric, mechanical
and electromechanical plants and machines, building,
commissioning, operation, maintenance, servicing,
restoration, rebuilding and dismantling of hydraulic power
plants. Technical project studies, engineering, technological
consulting (business consulting excluded), technical
studies, economical evaluations for hydraulic, electric,
mechanical and electromechanical plants, machines and parts
thereof; technical project studies, engineering,
technological consulting (business consulting excluded),
technical studies, economical evaluations for hydraulic
power plants; creation of computer programs for simulation,
visualization and control of hydraulic, electric,
mechanical, electromechanical plants, machines and parts
thereof as well as of hydraulic power stations.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(Section 1(a) and 44(e)) Hydraulic, electric, mechanical and electromechanical machines for hydraulic facilities in the nature of power stations, navigation dams, irrigation dams, reservoir intake towers, and ship locks, namely, electricity generators, hydraulic turbines, hydraulic turbine-generator units, modules consisting primarily of a plurality of turbine-generators; (section 44(e) only) weirs, canal and waterway locks and replacement parts for each, cranes and replacement parts therefor (Section 1(a) and 44(e)) Electric and electronic apparatus and instruments and apparatus for control and regulation of electric, mechanical and electromechanical plants, machines, turbines, generators, transformers, weirs, locks and parts thereof, namely, electrical controllers and electrical sensors and replacement parts therefor; electrical controllers for hydraulic power stations; (section 44(e) only) electricity transformers, computer software for simulation, visualization and control of electric, mechanical and electromechanical plants, machines, turbines, generators, transformers, weirs, locks and parts thereof; computer software for simulation, visualization and control of hydraulic power stations Building, construction, starting up, operation, maintenance, restoration, and rebuilding of hydraulic, electric, mechanical and electromechanical plants and machines; building, construction, starting up, operation, maintenance, restoration, rebuilding and dismantling of hydraulic power plants Conducting feasibility project studies, engineering, technological consulting in the field of hydraulic engineering, canal building, turbines, dams and navigational locks; conducting feasibility studies and technical consultation in the field of engineering and construction of hydraulic, electric, mechanical and electromechanical plants, machines and parts thereof as well as in the field of hydraulic power plants; design of computer programs for simulation, visualization and control of hydraulic, electric, mechanical, electromechanical plants, machines and parts thereof as well as of hydraulic power stations
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Hydraulic, electric, mechanical and electromechanical machines and parts therefor, hydraulic, electric, mechanical and electromechanical machines for hydroelectric power stations, generators, transformers, turbines, generator-turbine units, modules consisting of multiple generator-turbine units, weirs, sluices and parts therefor, cranes and parts therefor. Apparatus and instruments for the conducting, switching, converting, storage, regulating and controlling of electricity, electronic equipment and instruments, devices for controlling and regulating electric, mechanical and electromechanical installations, machines, turbines, generators, transformers, sluices, weirs and parts therefor; devices for controlling hydroelectric power stations; computer software for the simulation, visualisation and control of electric, mechanical and electromechanical installations, machines, turbines, generators, transformers, sluices, weirs and parts therefor, computer software for the simulation, visualisation and control of hydroelectric power stations. Construction, commissioning, operating, maintenance, renewal, conversion and dismantling of hydraulic, electric, mechanical and electromechanical installations and machines, construction, commissioning, operating, maintenance, servicing, renewal, conversion and dismantling of hydroelectric power stations. Technical planning, engineering, technological consultancy (non-business), technical studies, feasability studies in respect of hydraulic, electric, mechanical and electromechanical installations, machines and parts therefor, based on technical considerations; technical planning, engineering, technological consultancy (non-business), technical studies, feasability studies in respect of hydroelectric power stations; computer programming for the simulation, visualisation and control of hydraulic, electric, mechanical and electromechanical installations, machines and parts therefor.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
19 - Non-metallic building materials
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Lining material made of metallic materials as well as layers
of lining material, in particular surfacing layers on
workpieces, tools and parts of machines, particularly on
parts of hydraulic machinery. Tools, workpieces and machine parts made of metal, ceramic
material, plastic materials or compound materials, in
particular with wear-resistant layers of ceramic materials,
plastics as well as combined with metallic materials,
ceramic materials and plastics. Lining material of ceramic materials and plastic materials
as well as combined with metallic materials, ceramic
materials and plastics as well as layers thereof,
particularly surfacing layers applied to workpieces, tools
and parts of machines, particularly to parts of hydraulic
machinery. Production of linings for workpieces, prefabricated
elements, material tapes, tools and machine parts made of
metal, ceramics, plastics, fibre-reinforced plastics, in
particular application of layers of metallic materials,
ceramic materials, plastic materials as well as of compound
materials consisting of two or more of these materials,
preparation and preshaping of tools, prefabricated elements,
material tapes, tools and machine parts for the application
of wear-resistant layers of ceramic materials and plastic
materials or compound materials consisting of metal,
ceramics and plastics as well as machining of such layers.
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Pièces métalliques formées par soudage, en particulier pour
des machines à haute sollicitation mécanique, rotors pour
turbines, en particulier rotors de Pelton et godets pour de
tels rotors. Mise au point et façonnage de pièces métalliques formées par
soudage, de rotors pour turbines, en particulier de rotors
de Pelton et de godets pour de tels rotors en utilisant un
procédé de soudage avec dépôt de couches commandé par robot,
en particulier sans utiliser de dispositifs auxiliaires de
supports.
09 - Scientific and electric apparatus and instruments
Goods & Services
Installations extinctrices pour machines et appareils
électriques, notamment pour transformateurs à bain d'huile
ainsi qu'installations de commande et de réglage s'y
rapportant; pièces et accessoires pour tous les appareils
précités.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
19 - Non-metallic building materials
Goods & Services
(1) Hydraulic power plants, in particular water turbines, pump-turbines; governors for hydraulic power plants; constructional steelwork for weirs; pipe conduits; branch pipes; shut-off devices for conduits; concentrators; material and elements for structural steelwork; sewage treatment plant, marine propellors, in particularly with variable pitch; remote controls for ships; stabilizers for ships; bow thrusters for ships; fluid bed driers; iron, steel or non-ferrous castings.
Alternateurs, installations de centrales électriques,
installations de turbines à gaz, turbines pour installations
de centrales hydro-électriques, pompes, compresseurs ainsi
que pièces détachées et de rechange pour ces machines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Constructions en acier pour barrages; matériaux de bâtiment
en acier; éléments de bâtiments en acier; conduits de
tuyaux; ramifications pour tuyaux; dispositifs obturateurs
pour tuyaux; pièces de fonte en fer, en acier et en
matériaux non ferreux. Machines hydrauliques, notamment turbines hydrauliques;
pompes- turbines; régulateurs pour machines hydrauliques. Dispositifs de commande à distance pour navires. Evaporateurs; installations de purification des eaux
résiduaires; sécheurs à cunette pneumatique; appareils à
évaporer. Hélices marines, notamment à ailes orientables; dispositif
amortisseurs du roulement pour navires; gouvernails à
réaction pour navires.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Constructions en acier pour barrages; matériaux de bâtiment
en acier; éléments de bâtiment en acier; conduits de tuyaux;
ramifications pour tuyaux, dispositifs obturateurs pour
tuyaux; pièces de fonte en fer, en acier et en matériaux non
ferreux. Machines hydrauliques, notamment turbines hydrauliques;
pompes turbines; régulateurs pour machines hydrauliques. Evaporateurs; installations de purification des eaux
résiduaires; sécheurs à cunette pneumatique; appareils à
évaporer. Hélices marines, notamment à ailes orientables; dispositifs
amortisseurs du roulement pour navires; gouvernails à
réaction pour navires; dispositifs de commande à distance
pour navires.
