The invention relates to a coupling for a pump, in particular for a vacuum pump. The invention is characterized in that the coupling comprises at least one feed line for lubricant.
F16D 1/108 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
F16D 3/04 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow radial displacement, e.g. Oldham couplings
The invention relates to a vacuum pump comprising a pump housing. The invention is characterised in that at least one pump housing part is formed from a sandwich sheet-metal material comprising two layers of sheet metal, between which a plastic layer is arranged, by which means the layers of sheet metal are uncoupled from each other in terms of vibration.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The invention relates to a check valve (10), comprising a valve membrane (12), which comprises an umbrella-like closing body (14), which in a closed position abuts a housing body (5) in such a way that the closing body prevents the passage of a medium through passage holes (26) provided in the valve body (16), the closing body lifting off the housing body in an open position in order to allow a medium to pass through the passage holes. The invention is characterized in that in the open position and/or closed position the closing element is clamped between the valve body and the housing body at least at one point (31, 32).
The invention relates to a vacuum pump, comprising a suction valve, by means of which a working medium, such as air, can be drawn into a working chamber of the vacuum pump, the suction valve being combined with a pressure limiting valve that enables an overpressure in the working chamber to be reduced. The invention is characterized in that the pressure limiting valve comprises a slide, which has a pressure-action surface that is exposed to the working-chamber pressure.
F16K 11/10 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
F16K 15/14 - Check valves with flexible valve members
F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
5.
MODULE FOR COMPENSATING FOR INERTIAL FORCES AND/OR TORQUES OF AN INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE
The invention relates to a module (15) for compensating for inertial forces and/or torques of an internal combustion engine (1), having a basic body (17) which can be attached to the internal combustion engine (1) and on which at least one balancing shaft (19) with a first drive wheel (35) and an oil pump (75) with a second drive wheel (31) are arranged, wherein the first and the second drive wheel (31, 35) are arranged in a common plane at least substantially outside the basic body (17) such than they can be driven by an endless drawing means (39). There is provision here for at least one cover (49) to be arranged on the basic body (17) which can dip at least in regions into an oil bath (47) of an oil trough of the internal combustion engine (1), which cover (49) extends at least over the drive wheels (31, 35) and has an oil-level equalizing opening (53) which can be arranged in the oil bath (47) by the dipping. Furthermore, the invention relates to an internal combustion engine (1).
F02B 67/06 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
F16F 15/26 - Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system
The invention relates to a vacuum pump comprising a pump housing provided with a lubricant feed channel for feeding the lubricant which is used for cooling and for lubricating support points and/or for sealing gaps in the vacuum pump. The invention is characterised in that the vacuum pump comprises a pressure control valve for the lubricant supply pressure present in the lubricant feed channel.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
7.
DISCHARGE VALVE CONSISTING OF VARIOUS MATERIAL LAYERS FOR A VACUUM PUMP
The invention relates to a vacuum pump comprising a pressure chamber in which excess pressure is produced when the vacuum pump is in operation, said excess pressure being reduced by a discharge valve. The invention is characterised in that at least one metal part of the discharge valve comprises at least one plastic layer for improving the sealing and/or damping properties.
Disclosed is a vacuum pump comprising a suction chamber in which a negative pressure is produced when the vacuum pump is operated, and a lubricant feed. The disclosed vacuum pump is characterized in that the lubricant feed communicates with the suction chamber in such a manner that the vacuum pump is self-priming for the lubricant owing to the negative pressure produced during operation of the vacuum pump.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
The invention relates to a vacuum pump housing cover, comprising a planar contact surface for attaching the vacuum pump housing cover. In order to create a vacuum pump housing cover which has a simple design and is cost-effective to produce, the vacuum pump housing cover is designed as a formed part which is made of steel and has a through hole and which, on the side of the vacuum pump housing cover facing away from the planar abutment surface, is surrounded by a connector housing part that is likewise designed as a formed part made of steel and bonded to the vacuum pump housing cover.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
The invention relates to a locking semirotary pump, comprising at least one lower and one upper delivery chamber, each of which is associated with a wing which can be translationally moved into a wing receiving space or out of the wing receiving space depending on a rotational movement of a rotor. The invention is characterized in that at least one partial surface of the wing of the upper delivery chamber is connected by way of a connecting channel to a pressure chamber of the lower delivery chamber such that the partial surface of the wing of the upper delivery chamber is wetted with hydraulic medium from the pressure chamber of the lower delivery chamber.
F04C 2/356 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 14/06 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
The invention relates to a pump arrangement having an adjustable delivery volume, delivering from an inlet suction area or tank to a consumer, and having an adjusting device that can be adjusted based on the temperature. The invention is characterized in that the adjusting device is actuated at an intermediate pressure that is greater than the inlet pressure and less than or equal to the outlet pressure of at least one of a plurality of pump vents or pump stages of the pump arrangement.
12.
VACUUM PUMP WITH A SEALED ACCOMMODATION OF LUBRICANT
The invention relates to a vacuum pump, comprising a pump housing which can be attached, or is attached, to a motor vehicle housing part, and which can be connected, or is connected, to a lubricant source, and comprising a rotor, which is mounted in a pump housing part rotatably about an axis of rotation, said housing part including a lubricant through-duct extending from the rotor through the pump housing part to the lubricant feed duct in the attached state of the vacuum pump, said lubricant feed duct being provided in the motor vehicle housing part and transitioning into the lubricant through-duct on an interface between the motor vehicle housing part and the pump housing part, wherein a sealing device can be disposed, or is disposed, at the interface in the radial direction between the motor vehicle housing part and the pump housing part.
The invention relates to a coupling for a pump, particularly a vacuum pump, comprising a rotor coupling region (41) for a coupling element on the rotor side and a drive coupling region (42) for a coupling element on the drive side. The invention is characterized in that the coupling includes a circular disk-shaped main body (45), which delimits the rotor coupling region and/or the drive coupling region in the axial direction.
F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
F16D 3/04 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow radial displacement, e.g. Oldham couplings
The invention relates to a vacuum pump, particularly a vane pump, comprising a rotor which can be rotated about a rotational axis and through which at least one vane is moveably guided back and forth within a peripheral contour, against which the rotor nestles in a bevel gap. In the vicinity of said bevel gap, an outlet opening is provided in an axial delimiting surface of the housing. The invention is characterized in that at least one recess opening toward the outlet opening is provided on a part of the vacuum pump at least temporarily covering the outlet opening at least partially.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The invention relates to a vacuum pump, particularly a vane pump, comprising a rotor, which is mounted on a housing flange so as to rotate about a rotational axis and through which at least one vane is guided moveably back and forth within a peripheral contour of a housing pot that is separate from the housing flange, the rotor nestling against said contour in a bevel gap. The invention is characterized in that the region of the peripheral contour having the bevel gap is provided on a bevel gap delimiting part that forms one unit with the housing flange.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
The invention relates to a rotor for a pump, particularly for a vacuum pump, having a bearing segment and a vane mounting segment. The invention is characterized in that the rotor comprises a clamping recess as an axial extension of a functional recess.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
17.
MONO-VANE CELL VACUUM PUMP HAVING A BYPASS CHANNEL
The invention relates to a vacuum pump, particularly a mono-vane cell pump, having a rotor rotatable about a rotary axis and guiding at least one vane within a rotary contour, in order to bring about suction in at least one suction region connected to a pump inlet and to bring about, in at least one pressure region connected to a pump outlet, pressure applied to a working medium in a working chamber of the vacuum pump. The invention is characterized in that the vacuum pump comprises a bypass channel that can be opened or closed by means of a control device in order to allow delivery of variously sized stroke volumes during operation of the vacuum pump.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
The invention relates to a vacuum pump housing cover having a rotor contact body, which has a plane contact surface for a rotor having at least one vane, and a rotor bearing body, which is connected to the rotor contact body in one piece and has a rotor bearing section, which is used for supporting the rotor. The invention is characterized in that the rotor bearing body is connected to the rotor contact body in a shaping region in one piece and has an opening that is closed by a bearing cover, which is bonded to the rotor bearing body.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to an oscillating motor housing having a housing base body (4), from which at least one blade (11, 12) extends. The invention is characterized in that the housing base body having the blade is configured as a sintered forging.
F15B 15/12 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
The invention relates to a sintered rotor for a pump, in particular a vacuum pump, having a rotor basic body which has a sintered bearing section and a vane holding section which comprises at least one vane holding slot. The invention is characterized in that the vane holding slot is delimited by a bearing body which is integrally connected to the sintered rotor basic body and which has a further sintered bearing section.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a vacuum pump, in particular a vane cell pump, comprising a rotor (32) that can be rotated about a rotational axis (38) and by means of which, a vane (24) is guided inside in a peripheral contour (31) such that it can move back and forth in the radial direction, in relation to the rotor. The invention is characterised in that said vane is coupled to an eccentric device (40) that is rotationally arranged in an eccentric manner in relation to the structural centre point of the peripheral contour.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a vacuum pump, in particular a vane cell pump, comprising a rotor (7) that can be rotated about a rotational axis and by means of which, a vane (4) is guided inside in a peripheral contour (2) such that it can move back and forth in the radial direction, in relation to the rotor. The invention is characterised in that said vane (4) is coupled to an eccentric device (10) that is arranged in an eccentric manner in relation to the structural centre point (18) of the peripheral contour (2).
B60T 17/02 - Arrangements of pumps or compressors, or control devices therefor
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The invention relates to a vacuum pump, particularly a vane pump, having a rotor bearing section by means of which a rotor is mounted in a rotatable fashion about a rotary axis in a housing bearing section of the housing. The invention is characterized in that an annular groove is provided in at least one of the bearing sections, said annular groove serving to accommodate lubricants or sealing means.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
The invention relates to a vacuum pump, particularly a vane pump, having a rotor disposed in a housing in a rotatable fashion about a rotational axis, said housing having at least one inlet opening and at least one outlet opening equipped with a check valve. The invention is characterized in that the check valve has a primary outlet cross section that is opened as a function of the pressure upstream of the outlet opening, either alone or along with an auxiliary outlet cross section.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F01L 3/20 - Shapes or constructions of valve members, not provided for in preceding subgroups of this group
The invention relates to a pump for supplying hydraulic valve controls in a motor vehicle, said pump being arranged in the lubricating oil circuit of the motor vehicle.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
The invention relates to a pump, particularly a vane pump or a vacuum pump, comprising a rotatable rotor driven by a drive shaft. The invention is characterized in that the rotor can be coupled, or is coupled, to the drive shaft via a friction wheel mechanism.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 28/08 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
F16H 15/10 - Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately-flat friction surface in which the axes of the two members cross or intersect
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a temperature control valve device (30) for a pump (1), particularly for a lubricant pump of an internal combustion engine, comprising a valve housing, in which one end of a valve tappet is housed. At the other end thereof, a valve closing body (35) is provided, releasing or interrupting a connection between a high pressure channel (25) and a low pressure channel (29), depending on the expansion of a expanding element (31), which acts on the valve tappet and on which a return spring device supported in the valve housing acts. The invention is characterized in that the valve closing body comprises a through-hole.
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 14/06 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
The invention relates to a valve device for a low-pressure supply system with a membrane unit (9) releasing a flow path in one direction only. The membrane unit comprises at least two membrane elements (9a, 9b), wherein at least one thereof deforms during operation of the low pressure supply-system so that the membrane elements come in contact with each other and the oscillations of the membrane unit are damped.
The invention relates to a pump, especially a vane-cell vacuum pump, for motor vehicle servobrake systems, said pump comprising a rotor (7) which is rotatably driven by a drive by means of a wrap spring clutch (23).
The invention relates to a vacuum pump, in particular a vane pump, for generating a vacuum in a brake force booster of a motor vehicle, having a pressure space (12) which is connected by means of an outlet non-return valve (66) to a pressure release space, in particular to the atmosphere. The invention is characterized in that the outlet non-return valve is combined, in a multifunctional valve device (41), with a pressure release valve (58), by means of which a suction space (11) of the vacuum space is connected to the pressure release space, in particular to the atmosphere.
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F16K 11/10 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit
The invention relates to a vacuum pump, in particular a vane pump with a suction chamber (82) which can be connected via a suction non-return valve (20) to a low pressure chamber to be evacuated, in particular a brake force amplifier of a motor vehicle. The invention relates also to a pressure relief valve (34) via which the suction chamber of the vacuum pump can be connected to a decompressed area, in particular to the surroundings. The invention is characterized in that the suction non-return valve (20) and the pressure relief valve (34) are combined in a multifunction valve device (1).
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
32.
VACUUM PUMP, INJECTION MOLD FOR SAID PUMP HOUSING, METHOD FOR THE PRODUCTION OF THE PUMP HOUSING, AND METHOD FOR THE PRODUCTION OF A PUMP HOUSING COMPRISING TWO SEALS PRODUCED IN ONE OPERATION
The invention relates to a vacuum pump, especially for generating a negative pressure in a servo brake of a motor vehicle. Said vacuum pump comprises a pump housing part (1), particularly a pump flange, which is made of a relatively hard plastic, especially a duroplastic material, and is provided with a seal (30) made of a relatively soft, particularly an elastomeric plastic material, and a check valve (5) which is fitted with a check valve membrane (10). The check valve membrane and the seal are embodied as a single piece. The invention further relates to an injection mold (41, 42, 44, 46, 52, 54) for the pump housing part (1) of the claimed vacuum pump, a method for producing the claimed vacuum pump by means of the claimed injection mold, and a method for producing two seals in one operation in any vacuum pump comprising a pump housing part, a seal, and a check valve that is provided with a check valve membrane.
The invention relates to a vane pump having a rotor which is rotatably arranged inside a stroke contour and drives at least one vane which is displaceable in or on the rotor relative to its axis of rotation, wherein a bevel gap is formed in a region of the smallest distance between the rotor and the stroke contour and separates a suction side from a pressure side of the stroke contour. The invention is distinguished by the fact that the stoke contour is asymmetrical.
F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a vane cell pump, in particular a mono-vane vacuum pump, having a rotor which is arranged in a housing such that it can rotate about a rotational axis and has at least one vane which divides a working space in the housing into a pressure space and a suction space. The invention is distinguished by the fact that the vane has at least one pressure relief connection which extends between two vane ends, in particular perpendicularly with respect to the rotational axis of the rotor, and connects the pressure space to the suction space.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a pump, particularly a van-cell vacuum pump, with a casing cover (3) made of sheet metal, which accommodates the rotary group, and with a casing flange (1), the casing cover having a casing cover flange (9) for fastening to the casing flange.
F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 2/08 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a pump, particularly a van-cell pump for a vacuum for brake boosters in motor vehicles or for drawing blow-by gas out of the crankcase of internal combustion engines, with a casing (1), a rotor and with at least one vane and a liquid cooling device, which is depicted by means of a simple, essentially cylindrical insertion bush (8) for inserting inside the casing (1).
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
The invention relates to a pump arrangement, in particular for lubricating oil pumps for internal combustion engines, having at least two pump devices which are arranged on a common driveshaft but can feed independently of one another, wherein the first pump is always connected to the driveshaft so as to be driven in rotation, and wherein the second pump (1) can be connected to the shaft (2) or to the rotor of the first pump by means of a rotary drive connection (12) which can be actuated as a function of temperature.
F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
F04C 14/02 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
F04C 14/06 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
F01M 1/02 - Pressure lubrication using lubricating pumps
F04C 2/18 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
The invention relates to a pump, in particular a vane pump, roller cell pump or pendulum slide pump, having at least one suction region, at least one separating region and at least one discharge region, wherein the suction region has an intake opening (25), for example in the form of a suction kidney, and the discharge region has a first discharge opening (13, 17), for example in the form of a pressure kidney, wherein a second discharge opening (15, 19) having a non-return valve (27) is arranged in the discharge region in addition to the first discharge opening.
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
The invention relates to a pump, in particular a fuel feed pump or a vacuum pump, having a plastic housing which has inter alia a valve, in particular a pressure limiting valve or non-return valve.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
F01C 21/18 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
The invention relates to a pump, particularly a vane-type vacuum pump, comprising a rotor (1, 20), which is set in rotation via a coupling by means of a rotating drive, such as a camshaft of an internal combustion engine. The invention is characterized in that the coupling: drives the rotor (1, 20) when rotating forward up to an adjustable maximum torque; slips through when rotating forward once this maximum torque is exceeded and drives the rotor (1, 20) further only with the set torque, and; slides through when rotating backward at low driving torques thus it transmits only low drive torques to the rotor (1, 20).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F16D 41/06 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
F16D 41/20 - Freewheels or freewheel clutches with expandable or contractable clamping ring or band
F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
F16D 45/00 - Freewheels or freewheel clutches combined with automatic clutches
The invention relates to a valve for controlling an oil flow for piston cooling nozzles in the lubricating oil circuit of an internal combustion engine, said valve (1,28) being characterized in that it produces a throughflow of oil to the piston cooling nozzles at low temperatures, blocks a throughflow of oil to the piston cooling nozzles at medium temperatures, and produces a throughflow of oil to the piston cooling nozzles again at high oil temperatures.
The invention relates to a pump, in particular a vacuum pump for motor vehicle brake servos, comprising a housing (1), in which a rotor (2) is arranged to rotate and with an oil pocket (12), arranged in the housing in the vicinity of the rotor bearing, an oil supply (4) (drilling), arranged in the housing and a through radial transverse drilling (8) (for oil transport) arranged in the rotor. The transverse drilling may be brought into contact with only the oil pocket or only the oil supply drilling depending on the rotational position.
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