Abstract

Gearboxes with insertable sleeves for valve connections are described herein. An example gearbox includes a housing and a gear in the housing. The gear has a central opening defined by an inner surface of the gear. The inner surface has a first portion of a threaded fastener bore. The gearbox also includes a sleeve in the central opening of the gear. The sleeve has a first axial end, a second axial end, and an outer side surface between the first and second axial ends. The sleeve defines a keyed opening to receive a stem or shaft of the valve. The outer side surface of the sleeve has a second portion of the threaded fastener bore. The first portion and the second portion are aligned to form the threaded fastener bore. The gearbox further includes a threaded fastener screwed into the threaded fastener bore to couple the gear and the sleeve.

IPC Classes  ?

• F16H 1/16 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
• F16H 55/12 - Toothed membersWorms with body or rim assembled out of detachable parts
• F16H 55/22 - Toothed membersWorms for transmissions with crossing shafts, especially worms, worm-gears
• F16K 31/53 - Mechanical actuating means with toothed gearing

Abstract

Universal control circuitry for an electro-hydraulic valve actuator system includes logic gate circuitry to control one or more of a closing solenoid valve, an opening solenoid valve, an emergency shutdown solenoid valve, and a hydraulic fluid pump motor to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator according to received commands. The universal control circuitry is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations, single-acting spring-to-open configurations, and single-acting spring-to-close configurations, each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator, and maintained or momentary input commands.

IPC Classes  ?

• F16K 31/42 - Operating meansReleasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
• G05D 7/00 - Control of flow

Abstract

An actuator (100) for a valve can include a torque module (106) and a drive module (104) that is configured to transmit rotational force from the torque module to a valve member (e.g., to selectively open and close the valve by rotating a flow control element thereof). A torque¬ sensing system can include a sensor element (110, 112) configured to detect a deformation of at least one of the torque module (106) or the drive module (104), to monitor torque applied by the actuator (100) to the valve (200).

IPC Classes  ?

• F16K 31/528 - Mechanical actuating means with crank, eccentric, or cam with pin and slot
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement

Abstract

A fluid control system (100; 200) for controlling flow of a process fluid can include an actuator (104; 204) and an energy storage system (102; 202). The actuator can be configured to actuate a valve (120) to control the flow of the process fluid and the energy storage system can drive the actuator. The energy storage system (100; 200) can include an accumulator (106; 206) in fluid communication with the actuator and a manual pump (108; 208) configured to charge the accumulator (106; 206).

IPC Classes  ?

• F15B 1/02 - Installations or systems with accumulators
• F15B 1/027 - Installations or systems with accumulators having accumulator charging devices
• F15B 1/033 - Installations or systems with accumulators having accumulator charging devices with electrical control means
• F15B 1/08 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor
• F15B 1/26 - Supply reservoir or sump assemblies
• F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
• F15B 21/045 - Compensating for variations in viscosity or temperature
• F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
• E21B 34/16 - Control means therefor being outside the borehole
• F15B 11/072 - Combined pneumatic-hydraulic systems
• F16K 31/124 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston servo actuated
• F16K 31/128 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like servo actuated
• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids
• F16H 61/4096 - Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators

Abstract

Universal control circuitry (500) for an electro-hydraulic valve actuator system (105, 105', 105'') includes logic gate circuitry to control one or more of a closing solenoid valve (6), an opening solenoid valve (5), an emergency shutdown solenoid valve (17), and a hydraulic fluid pump (3) motor (2) to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator (100) according to received commands. The universal control circuitry (500) is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations (105', 105''), single-acting spring-to-open configurations (105), and single-acting spring-to-close configurations (105), each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator (40), and maintained or momentary input commands.

IPC Classes  ?

• F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
• F15B 21/08 - Servomotor systems incorporating electrically- operated control means
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G05B 19/00 - Programme-control systems
• F15B 1/02 - Installations or systems with accumulators
• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• F15B 21/10 - Delay devices or arrangements

Abstract

Universal control circuitry for an electro-hydraulic valve actuator system includes logic gate circuitry to control one or more of a closing solenoid valve, an opening solenoid valve, an emergency shutdown solenoid valve, and a hydraulic fluid pump motor to route hydraulic fluid through a hydraulic circuit to actuate a valve via a hydraulic actuator according to received commands. The universal control circuitry is configured to control operation for multiple different configurations of a hydraulic valve actuator system including double-acting configurations, single-acting spring-to-open configurations, and single-acting spring-to-close configurations, each with or without an emergency shutdown arrangement (which may be configured to trip based on an external shutdown input alone or in combination with a local system power failure), a hydraulic accumulator, and maintained or momentary input commands.

IPC Classes  ?

• G05D 7/00 - Control of flow
• F16K 31/42 - Operating meansReleasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor

Abstract

An absolute valve position detector with self-powering capabilities is provided. An energy-harvesting position sensor is activated by the rotation of a pinion that rotates according to the opening and closing of the valve. The sensor outputs an electrical pulse that may be simultaneously used to provide power to the position detector and to indicate the rotation of the pinion and, therefore, the position of the valve. In a preferred example, the energy-harvesting sensor is activated by change in a magnetic field and the magnetic polarization of a Wiegand wire. In examples, the electrical pulse is induced in a coil wrapped around the Wiegand wire when a magnet disposed on the pinion is rotated.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G01D 21/00 - Measuring or testing not otherwise provided for
• G01P 3/481 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals

Abstract

An absolute valve position detector with self-powering capabilities is provided. An energy-harvesting position sensor is activated by the rotation of a pinion that rotates according to the opening and closing of the valve. The sensor outputs an electrical pulse that may be simultaneously used to provide power to the position detector and to indicate the rotation of the pinion and, therefore, the position of the valve. In a preferred example, the energy-harvesting sensor is activated by change in a magnetic field and the magnetic polarization of a Wiegand wire. In examples, the electrical pulse is induced in a coil wrapped around the Wiegand wire when a magnet disposed on the pinion is rotated.

IPC Classes  ?

• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G01D 21/00 - Measuring or testing not otherwise provided for
• G01P 3/481 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals

Abstract

An absolute valve position detector with self-powering capabilities is provided. An energy-harvesting position sensor is activated by the rotation of a pinion that rotates according to the opening and closing of the valve. The sensor outputs an electrical pulse that may be simultaneously used to provide power to the position detector and to indicate the rotation of the pinion and, therefore, the position of the valve. In a preferred example, the energy-harvesting sensor is activated by change in a magnetic field and the magnetic polarization of a Wiegand wire. In examples, the electrical pulse is induced in a coil wrapped around the Wiegand wire when a magnet disposed on the pinion is rotated.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• F16H 1/20 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
• F16K 31/53 - Mechanical actuating means with toothed gearing

Abstract

Manual hydraulic override pumps for use with actuators are described herein. An example apparatus includes a manifold including a reservoir port to be fluidly coupled to a reservoir of fluid, a pump port to be fluidly coupled to a pump, a first actuator port to be fluidly coupled to a first chamber of an actuator, and a second actuator port to be fluidly coupled to a second chamber of the actuator. The example apparatus also includes a rotor disposed in a cavity formed in the manifold. The rotor is rotatable between a first actuating position in which the rotor fluidly couples the first actuator port and the pump port, and a second actuating position in which the rotor fluidly couples the second actuator port and the pump port.

IPC Classes  ?

• F04B 9/14 - Pumps characterised by muscle-power operation
• F04B 23/02 - Pumping installations or systems having reservoirs
• F04B 53/10 - ValvesArrangement of valves
• F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with flat sealing faces

Abstract

Manual hydraulic override pumps for use with actuators are described herein. An example apparatus includes a manifold including a reservoir port to be fluidly coupled to a reservoir of fluid, a pump port to be fluidly coupled to a pump, a first actuator port to be fluidly coupled to a first chamber of an actuator, and a second actuator port to be fluidly coupled to a second chamber of the actuator. The example apparatus also includes a rotor disposed in a cavity formed in the manifold. The rotor is rotatable between a first actuating position in which the rotor fluidly couples the first actuator port and the pump port, and a second actuating position in which the rotor fluidly couples the second actuator port and the pump port.

IPC Classes  ?

• F04B 9/14 - Pumps characterised by muscle-power operation
• F04B 23/02 - Pumping installations or systems having reservoirs
• F04B 53/10 - ValvesArrangement of valves
• F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with flat sealing faces

Abstract

Manual hydraulic override pumps for use with actuators are described herein. An example apparatus includes a manifold including a reservoir port to be fluidly coupled to a reservoir of fluid, a pump port to be fluidly coupled to a pump, a first actuator port to be fluidly coupled to a first chamber of an actuator, and a second actuator port to be fluidly coupled to a second chamber of the actuator. The example apparatus also includes a rotor disposed in a cavity formed in the manifold. The rotor is rotatable between a first actuating position in which the rotor fluidly couples the first actuator port and the pump port, and a second actuating position in which the rotor fluidly couples the second actuator port and the pump port.

IPC Classes  ?

• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• E02F 9/22 - Hydraulic or pneumatic drives

Abstract

Apparatus that prevent side load in hydraulic override pumps are disclosed herein. An example apparatus includes a lever rotatably mounted to a support, a pump cylinder rotatable about a first end of the pump cylinder, and a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever, wherein the pump cylinder rotates when the pump rod moves within the pump cylinder.

IPC Classes  ?

• F04B 9/14 - Pumps characterised by muscle-power operation
• F04B 19/02 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups having movable cylinders

Abstract

Apparatus that prevent side load in hydraulic override pumps are disclosed herein. An example apparatus includes a lever rotatably mounted to a support, a pump cylinder rotatable about a first end of the pump cylinder, and a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever, wherein the pump cylinder rotates when the pump rod moves within the pump cylinder.

IPC Classes  ?

• F04B 9/14 - Pumps characterised by muscle-power operation
• F04B 19/02 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups having movable cylinders

Abstract

An example apparatus to prevent side load in hydraulic override pumps includes a lever rotatably mounted to a support. The apparatus includes a pump cylinder rotatable about a first end of the pump cylinder. The apparatus also includes a pump rod operatively coupled to the lever to move within the pump cylinder based on rotation of the lever. The pump cylinder rotates when the pump rod moves within the pump cylinder.

IPC Classes  ?

• F04B 19/02 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups having movable cylinders
• F04B 9/14 - Pumps characterised by muscle-power operation
• F04B 53/10 - ValvesArrangement of valves
• F04B 33/00 - Pumps specially adapted for elastic fluids actuated by muscle power, e.g. for inflating
• F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
• F04B 23/02 - Pumping installations or systems having reservoirs
• F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
• F04B 9/02 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical

Abstract

An actuator of a process control device continuously monitors actuator force and records high force values at each position point by continuously executing a routine in a processor of the actuator. The routine includes receiving from a position sensor a current position value indicating a position of a valve element in the valve, and from a force sensor a current force value indicating a force applied by the actuator. The routine also includes retrieving, from a memory device coupled to the processor, a previous force value measured at the current position, and comparing the current force values for the current position with the previous force value for the current position. If the current force value for the current position exceeds the previous force value for the current position, the routine replaces the previous force value for the current position with the current force value for the current position in memory.

IPC Classes  ?

• G05B 19/406 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety

Abstract

An actuator of a process control device continuously monitors actuator force and records high force values at each position point by continuously executing a routine in a processor of the actuator. The routine includes receiving from a position sensor a current position value indicating a position of a valve element in the valve, and from a force sensor a current force value indicating a force applied by the actuator. The routine also includes retrieving, from a memory device coupled to the processor, a previous force value measured at the current position, and comparing the current force values for the current position with the previous force value for the current position. If the current force value for the current position exceeds the previous force value for the current position, the routine replaces the previous force value for the currrent position with the current force value for the current position in memory.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

An actuator assembly includes a cylinder disposed in an actuator housing, the cylinder having a cylinder interior is in fluid communication with a source of pressurized fluid. A ram member has a piston head within the cylinder interior, and pressure on the piston head moves the ram member. An end of the ram member acts on a collar having a collar interior, and an end of a rod member is disposed within the collar interior. The rod member is displaceable relative to the collar such that the end of the rod member does not contact the collar. Accordingly, fluid in the cylinder interior acting on the ram member may expand due to thermal expansion without damaging a hard stop at an opposite end of the rod member and without losing system pressure by triggering a relief valve.

IPC Classes  ?

• F16K 31/383 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
• F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston
• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
• F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
• F15B 21/045 - Compensating for variations in viscosity or temperature
• F15B 15/24 - Other details for restricting the stroke
• F16K 1/18 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps

Abstract

Methods and apparatus are disclosed for automatically detecting the failure configuration of a pneumatic actuator. A control module is operatively coupled to the actuator, and the actuator is operatively coupled to a valve having a flow control member. When a number of pilot valves included in the control module is indicative of a double-acting actuator, the failure configuration of the actuator is determined based on the number of pilot valves. When the number of pilot valves included in the control module is indicative of a single-acting actuator, the failure configuration of the actuator is determined by comparing a first measurement value obtained in response to moving the flow control member in a first direction to a first position and a second measurement value obtained in response to moving the flow control member in a second direction opposite the first direction to a second position.

IPC Classes  ?

• F16K 31/42 - Operating meansReleasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• F15B 15/28 - Means for indicating the position, e.g. end of stroke
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston
• F15B 5/00 - Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versaVarying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet

Abstract

An actuator assembly includes a cylinder disposed in an actuator housing, the cylinder having a cylinder interior is in fluid communication with a source of pressurized fluid. A ram member has a piston head within the cylinder interior, and pressure on the piston head moves the ram member. An end of the ram member acts on a collar having a collar interior, and an end of a rod member is disposed within the collar interior. The rod member is displaceable relative to the collar such that the end of the rod member does not contact the collar. Accordingly, fluid in the cylinder interior acting on the ram member may expand due to thermal expansion without damaging a hard stop at an opposite end of the rod member and without losing system pressure by triggering a relief valve.

IPC Classes  ?

• F15B 13/00 - Details of servomotor systems
• F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston

Abstract

An actuator assembly includes a cylinder disposed in an actuator housing, the cylinder having a cylinder interior is in fluid communication with a source of pressurized fluid. A ram member has a piston head within the cylinder interior, and pressure on the piston head moves the ram member. An end of the ram member acts on a collar having a collar interior, and an end of a rod member is disposed within the collar interior. The rod member is displaceable relative to the collar such that the end of the rod member does not contact the collar. Accordingly, fluid in the cylinder interior acting on the ram member may expand due to thermal expansion without damaging a hard stop at an opposite end of the rod member and without losing system pressure by triggering a relief valve.

IPC Classes  ?

• F16K 1/18 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps
• F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
• F15B 15/24 - Other details for restricting the stroke
• F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston
• F16K 31/383 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston

Abstract

The present disclosure envisages a system and method for self-calibration of an actuator. The system comprises a pressure spike sensing and control circuit, a travel limit setting circuit and a profile generation circuit. The pressure spike sensing and control circuit is configured to check and set an operating pressure of the actuator. The travel limit setting circuit is configured to check and set the travel limit of the actuator. The profile generation circuit is configured to generate the profiles of a set of parameters of the actuator.

IPC Classes  ?

• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
• G05B 19/37 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an analogue measuring device for continuous-path control
• F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

Abstract

The present disclosure envisages a system and method for self-calibration of an actuator. The system comprises a pressure spike sensing and control circuit, a travel limit setting circuit and a profile generation circuit. The pressure spike sensing and control circuit is configured to check and set an operating pressure of the actuator. The travel limit setting circuit is configured to check and set the travel limit of the actuator. The profile generation circuit is configured to generate the profiles of a set of parameters of the actuator.

IPC Classes  ?

• F16K 31/44 - Mechanical actuating means
• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• G05B 23/02 - Electric testing or monitoring

Abstract

Methods and apparatus are disclosed for automatically detecting the failure configuration of a pneumatic actuator (102). A control module (108) is operatively coupled to the actuator (102), and the actuator (102) is operatively coupled to a valve (104) having a flow control member (110). When a number of pilot valves included in the control module (108) is indicative of a double-acting actuator (102), the failure configuration of the actuator (102) is determined based on the number of pilot valves. When the number of pilot valves included in the control module (108) is indicative of a single-acting actuator (102), the failure configuration of the actuator (102) is determined by comparing a first measurement value obtained in response to moving the flow control member (110) in a first direction to a first position and a second measurement value obtained in response to moving the flow control member (110) in a second direction opposite the first direction to a second position.

IPC Classes  ?

• F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

An example rotary actuator includes a cam that is to be coupled to a valve. The cam is rotatable about an axis. The example rotary actuator also includes a linear actuator having a stem movable along a path offset from and perpendicular to the axis and a chain having a first end and a second end opposite the first end. The first end of the chain is coupled to the stem and the second end of the chain coupled to the cam. The chain is disposed around at least a portion of an outer edge of the cam, and movement of the stem along the path rotates the cam about the axis.

IPC Classes  ?

• F16K 31/52 - Mechanical actuating means with crank, eccentric, or cam
• F16H 21/44 - Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions
• F16H 25/18 - Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
• F16H 37/12 - Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types
• F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
• F16K 31/46 - Mechanical actuating means for remote operation
• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement

Goods & Services

Electric valve actuators; Software and hardware for use in controlling valve actuators.

Goods & Services

Driving motors, other than for land vehicles; Valves [parts of machines]; Control mechanisms for machines, engines or motors; Hydraulic controls for machines, motors and engines; Pneumatic controls for machines, motors and engines. Electric installations for the remote control of industrial operations; Monitoring apparatus, electric; Control and fail safe apparatus and installations for industrial processes, and in particular electrical (motor) and electro-hydraulic valve actuators; Control and fail safe apparatus and installations for industrial processes, and in particular computer hardware and computer software for diagnostic, calibrating, monitoring and controlling industrial processes; Control and fail safe apparatus and installations for industrial processes, and in particular electrical and electronic controls that operate movable equipment and mechanisms, and in particular rotary, linear or motorized valves, electric (motor), electro-hydraulic valve actuators, hydraulic valve actuators, and pneumatic valve actuators, for use in pipelines and channels; Control and fail safe apparatus and installations for industrial processes, and in particular computer hardware and computer software for diagnostic, calibrating, monitoring and controlling valve actuators, industrial processes, analysis apparatus and installations, and in particular pressure and position sensors for the measurement of the physical properties and chemical constituents of liquids and gases used in industrial processes, and in particular in the petro-chemical and chemical process industries; Control and fail safe apparatus and installations for industrial processes, and in particular automated multi-port flow selector for use in well testing applications with electric (motor) actuators. Machinery installation, maintenance and repair; Installation, maintenance and repair of computer hardware; Maintenance and repair of control and fail safe actuators (and controls) installations, an in particular of hydraulic valves, electric (motor) valves, electro-hydraulic valve actuators, pneumatic valve actuators, in particular those used in pipelines and channels, and in particular in the chemical, petrochemical, water and waste and power-generating industries; Maintenance and repair of control and fail safe apparatus and installations for industrial processes and electronic assemblies, and in particular of computer hardware for monitoring and controlling industrial processes, and electrical and electronic controls that operate movable equipment and mechanisms; Maintenance and repair of computer hardware for diagnostic, calibrating and monitoring industrial processes, actuators, movable equipment and mechanisms, and in particular hydraulic valves, electric (motor) valves, electro-hydraulic valve actuators, and pneumatic valve actuators.

Abstract

The control fluid power apparatus (102) includes a first housing (226) having a first piston (228) defining a first chamber (232) and a second chamber (236), where the first chamber (232) receives a control fluid (220) and the second chamber (236) receives a process fluid (235) from a process system (104). The first chamber (232) is oriented above the second chamber (236) when the control fluid power apparatus (102) is coupled to a control valve assembly (100). A second housing (244) has a second piston (246) defining a third chamber (250) and a fourth chamber (254), where the third chamber (250) receives the control fluid (220) and the fourth chamber (254) receives the process fluid (235). The third chamber (250) is oriented above the fourth chamber (254) when the control fluid power apparatus (102) is coupled to the control valve assembly (100).

IPC Classes  ?

• F15B 1/02 - Installations or systems with accumulators
• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids

Abstract

Control fluid power apparatus and related methods are disclosed. An example control fluid power apparatus includes a first housing having a first piston defining a first chamber and a second chamber, where the first chamber receives a control fluid and the second chamber receives a process fluid from a process system. The first chamber is oriented above the second chamber when the control fluid power apparatus is coupled to a control valve assembly. A second housing has a second piston defining a third chamber and a fourth chamber, where the third chamber receives the control fluid and the second chamber receives the process fluid. The third chamber is oriented above the fourth chamber when the control fluid power apparatus is coupled to the control valve assembly.

IPC Classes  ?

• F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
• F15B 1/02 - Installations or systems with accumulators
• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids
• F15B 1/04 - Accumulators
• F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
• 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

Abstract

Methods and apparatus of using customizable templates in process control systems are disclosed. An example method includes initializing a first process control device associated with a first protocol based on a template file and a first parameter definition file. The template file includes global variables and associated values. The first parameter definition file defines a relationship between the global variables and first local variables of at least one of the first process control device or the first protocol. The example method also includes initializing a second process control device associated with a second protocol based on the template file and a second parameter definition file. The second parameter definition file defines a relationship between the global variables and second local variables of at least one of the second process control device or the second protocol. The first protocol is different from the second protocol.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor
• G06F 9/50 - Allocation of resources, e.g. of the central processing unit [CPU]
• H04L 29/06 - Communication control; Communication processing characterised by a protocol

Goods & Services

[ hydraulic valve actuators; ] pneumatic valve actuators

Goods & Services

Control mechanisms for machines, engines or motors; hydraulic controls for machines, engines, and motors; pneumatic controls for machines, engines, and motors. Electric installations for the remote control of industrial operations.

Abstract

Example apparatus for absolute position detection are disclosed. An example apparatus includes a housing and digit gears coupled to the housing to rotate about respective parallel axes. Each digit gear has a first portion including a first set of teeth disposed about an entire circumference of the first portion and a second portion including a second set of teeth disposed about only a portion of a circumference of the second portion. Each digit gear is to correspond to a respective digit in a code representing an absolute position of a shaft. A respective idler gear between each adjacent pair of the digit gears is to be intermeshed with the first set of teeth of one of the digit gears and the second set of teeth of the other one of the digit gears.

IPC Classes  ?

• G01D 5/04 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using leversMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using camsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using gearing

Abstract

Example apparatus for absolute position detection are disclosed. An example apparatus includes a housing and digit gears coupled to the housing to rotate about respective parallel axes. Each digit gear has a first portion including a first set of teeth disposed about an entire circumference of the first portion and a second portion including a second set of teeth disposed about only a portion of a circumference of the second portion. Each digit gear is to correspond to a respective digit in a code representing an absolute position of a shaft. A respective idler gear between each adjacent pair of the digit gears is to be intermeshed with the first set of teeth of one of the digit gears and the second set of teeth of the other one of the digit gears.

IPC Classes  ?

• G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
• G01R 33/07 - Hall-effect devices
• G01D 5/04 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using leversMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using camsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using gearing

Abstract

Methods and apparatus for changing actuator output torques are disclosed. An example method includes decoupling a first end cap from a body of an actuator. A first spring assembly is positioned within a first outer chamber defined by the first end cap and the body. A first end of the first spring assembly is positioned adjacent a surface of a first piston. A second end of the first spring assembly is positioned adjacent the first end cap when the first end cap is coupled to the body. The method includes positioning a first spacer within the first outer chamber and coupling the first end cap to the body. The first spacer changes a distance between the first and second ends of the first spring assembly when the first end cap is coupled to the body to change an output torque of the actuator.

IPC Classes  ?

• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
• F15B 15/22 - Other details for accelerating or decelerating the stroke
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston

Abstract

A force transfer apparatus includes a housing, a shaft, a plunger, a retention plate, and a force sensor. The housing defines a cavity and a sidewall with an aperture. The shaft is supported in the cavity for rotation about a first axis that is a longitudinal axis of the shaft. The plunger is disposed in the aperture and has a first and second ends. The first end is operably coupled to the shaft such that the plunger can slide along a second axis that is transverse to the first axis in response to rotation of the shaft. The retention plate is fixed to the sidewall outside of the cavity adjacent to the aperture. The force sensor is disposed between the second end of the plunger and the retention plate. As such, the force sensor can detect the amount of force applied to the plunger by the rotation of the shaft.

IPC Classes  ?

• F16H 1/12 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
• F16H 57/02 - GearboxesMounting gearing therein

Abstract

Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

IPC Classes  ?

• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
• F15B 15/22 - Other details for accelerating or decelerating the stroke
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston

Abstract

Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

IPC Classes  ?

• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston
• F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
• F15B 15/22 - Other details for accelerating or decelerating the stroke

Abstract

Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

IPC Classes  ?

• F15B 15/22 - Other details for accelerating or decelerating the stroke
• F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
• F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston

Abstract

Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

IPC Classes  ?

• F16K 31/12 - Operating meansReleasing devices actuated by fluid

Abstract

Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).

IPC Classes  ?

• F15B 1/24 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor with rigid separating means, e.g. pistons

Abstract

Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).

IPC Classes  ?

• F15B 1/24 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor with rigid separating means, e.g. pistons

Abstract

Methods and apparatus to charge accumulators are described. An example system to charge an accumulator apparatus includes a piston disposed within a housing to define a first chamber adjacent a first side of the piston and a second chamber adjacent a second side of the piston. A fill probe having a body and a passageway between a first end of the fill probe and a second end of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston when the fill probe is coupled to the piston.

IPC Classes  ?

• F16L 55/04 - Devices damping pulsations or vibrations in fluids

Goods & Services

Pneumatic and hydraulic valve actuators.

Goods & Services

(1) Pneumatic and hydraulic valve actuators.

Abstract

An at least partially automatic valve stem lubrication system including a source of grease lubricant, a pump and an at least partially automated control system, the control system structured and arranged such that lubricant is pumped onto a valve stem surface area as a function of the receipt of certain inputs.

IPC Classes  ?

• F16N 13/16 - Actuation of lubricating-pumps with fluid drive

Abstract

Condensation draining system and method for valve stem protectors comprising an actuator and a stem protector assembly structured in combination to provide a drain and an opening for draining condensation from inside the assembly to outside the combination.

IPC Classes  ?

• F16K 24/00 - Devices, e.g. valves, for venting or aerating enclosures

Abstract

An improved stem protector system for valves including an assembly, preferably a sleeve assembly, structured and sized for surrounding a valve stem and for mating with a valve stem actuator, the assembly including at least one port system, the at least one port system having at least one port structure to pass lubricant from outside to inside the system and at least one drainage port to pass water from inside to outside the system. Preferably the lubricant port(s) and the water drainage port(s) are separate.

IPC Classes  ?

• F16K 27/00 - Construction of housingsUse of materials therefor

Goods & Services

Electric valve actuators; software and hardware for use in controlling valve actuators [ Distributorships in the field of valve actuators and valve actuator control systems ] [ Maintenance of valve actuators and valve actuator control systems for others ]

Goods & Services

(1) Pneumatic valve actuators. (2) Valve automation equipment comprising a valve position detector, an actuator and electronic controls.

Goods & Services

electronic valve actuator controls

Goods & Services

pneumatic valve actuators valve automation equipment comprising a valve position detector, and actuator, and electronic controls

Goods & Services

(1) Actuators used to operate linear gate valves in the oilfield market.

Goods & Services

PNEUMATIC AND HYDRAULIC VALVE ACTUATORS ELECTRIC VALVE ACTUATORS

Goods & Services

HYDRAULIC VALVE OPERATORS AND HYDRAULIC AND ELECTRICAL CONTROLS THEREFOR [ AUTOMATIC PIPELINE VALVES ]

Goods & Services

ELECTRICAL CONTROLS FOR VALVE OPERATORS VALVE OPERATORS

Goods & Services

VALVE ACTUATORS