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7647943 |
Solenoid with control cone
A solenoid including an armature movable in an armature room, and a coil which can be flowed through by current. When flowed through by current the armature moves. The armature immerses in a...
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7644688 |
Valve actuator assembly having a center biased spool valve with detent feature
A valve actuator assembly for an engine includes a movable poppet valve, and movable first and second spool valves. The assembly also includes an intermediate channel interconnecting the first and...
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7614529 |
Spool valve and valve seat assembly for an intermittently operable hot melt adhesive material control module
A spool valve and valve seat assembly disposed in the control module of a hot melt adhesive dispensing system is uniquely structured so as to effectively prevent fluid communication or...
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7556062 |
Solenoid valve with integrated structure
A solenoid valve and method has a simplified structure that integrates the fluid metering functions of the spool in the armature, thereby eliminating the need for a separate spool, bearings, and...
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7523763 |
Three-port electromagnetic valve
A valve body includes a poppet type valve member disposed therein and a through hole formed thereto wherein first and second cylindrical synthetic resin retainers are fitted to the through hole....
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7513272 |
Solenoid valve
A solenoid valve comprises a solenoid portion 10 and a valve portion 20 . The solenoid portion 10 is constructed by a stator core 12 , an electromagnetic coil 14 and a plunger 15 . The...
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7503346 |
Solenoid actuated pilot valve for irrigation system valve
A solenoid actuated pilot valve includes a pilot valve housing defining a pilot valve chamber and a solenoid. The solenoid includes and end cap connected to the pilot valve housing, a reciprocable...
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7503347 |
Linear solenoid valve
A linear solenoid valve includes a solenoid having a coil wound around a coil bobbin, a fixed core, and a movable core for being attracted to the fixed core when the coil is energized, and a valve...
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7497232 |
Pressure control valve
A pressure control valve is provided, in particular an electromagnetic pressure control valve, with a magnetic component which has at least one electrical coil and a relocatably supported armature...
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7487752 |
Control valve for a device to modify the timing of an internal combustion engine
A control valve ( 18 ) for a device ( 1 ) to modify the timing of an internal combustion engine is provided. Here, a controlled rotation of the camshaft in reference to the crankshaft can be...
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7487798 |
Linear solenoid valve
A bottom of a housing has a protruding support extending a predetermined distance toward a movable core, and the movable core has an annular boss extending a predetermined distance toward the...
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7481242 |
Solenoid-operated directional control valve
Directional control valve, in particular a hydraulic 3/2-way directional control valve, having an actuating unit ( 1 ) and a valve unit ( 2 ), which is operatively connected to the actuating unit...
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7458395 |
Low leak poppet solenoid
A dual poppet low leak variable bleed solenoid valve, including a solenoid portion with an adjustable end cap disposed through the solenoid. Exhaust ports are disposed about the end cap. A...
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7458561 |
Spool valve apparatus
A spring seat, which contacts a spool, is provided between a compression coil spring and the spool. The spring seat is shaped into a cup-shaped body, which includes a cup tubular section, a cup...
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7438091 |
Construction machine
The present invention relates to a construction machine having a working oil tank and a switching valve to open/close the pilot line of the hydraulic pressure control system, the return oil from...
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7367473 |
Circuit for dispensing fluid products, in particular colouring agents, paints or similar fluid products
A circuit for dispensing fluid products, in particular coloring agents, paints and the like, comprises a pump ( 12 ) for delivering a fluid product, which pump can be activated selectively to send...
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7367357 |
Solenoid ball valve with bypass orifice
On/off solenoid ball valves of the invention comprise at least one inlet port; at least one pressure control outlet port; at least one exhaust port; at least one check valve positioned between the...
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7351179 |
Stepper motor driven proportional actuator
A low energy stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. The cam rotation increases the gap...
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7331565 |
On/off solenoid
A solenoid control valve is described wherein the valve employs a precision molded plastic valve seat member, a corresponding control valve body which includes flying buttresses for supporting and...
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7322376 |
Piezoelectric valve
A piezoelectric valve has a flexural transducer accommodated in a valve housing and having a free ending cantilever operational section able to be deflected by electrical control. The operational...
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7320335 |
Electrohydraulic control device
A electrohydraulic control device H for the direction control of a hydro-motor, particularly for working pressures u to more than about 450 bar in a portable working device, comprises working lines...
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7255132 |
Control valve for controlling flow of hydraulic fluid
The present invention relates to a control valve for controlling flow of hydraulic fluid. The control valve comprises: a valve housing ( 10 ); a sleeve ( 11 ) slidable in a valve chamber in the...
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7243680 |
Electromagnetic hydraulic valve, in particular a 3/2-way directional control valve, for controlling a variable drive train of an internal combustion engine
The invention relates to a hydraulic valve ( 1 ), which comprises an electromagnet ( 2 ) with a magnet armature ( 3 ) as well as the valve part ( 4 ) with at least two valve seats ( 5, 6 ). The...
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7210502 |
Microvalve device suitable for controlling a variable displacement compressor
A device is disclosed for controlling a variable displacement compressor. The device comprises a microvalve operated control valve. A microvalve device for controlling fluid flow and a micro spool...
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7210501 |
Directly operated pneumatic valve having a differential assist return
A fluid control valve includes a valve body having both fluid inlet and discharge ports. A flow passage axially extending within the valve body communicates with the inlet and discharge ports. A...
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7165731 |
Dual travel seated pin valve assembly
When an engine is cold-started, the engine oil is quite viscous and requires larger passageways to flow through the engine than when the engine is warmed up and the engine oil flows readily. The...
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7159615 |
Flow control valve
A flow rate control valve comprising a valve body having an input port, an output port and an exhaust port, a valve means that is arranged in the valve body and controls the communication of the...
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7137411 |
Electromagnetic hydraulic valve, typically a 3/2 directional switching valve for controlling a variable valve train of an internal combustion engine
The invention concerns a hydraulic valve ( 1 ) that comprises an electromagnet ( 2 ) having an armature ( 3 ), and a valve part ( 4 ) having at least two valve seats ( 5, 6 ). The electromagnet ( 2...
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7134434 |
Pressure support system and method and a pressure control valve for use in such a system and method
A pressure support system having enhanced noise reduction and a valve assembly for use in pressure support system. The pressure support system includes a pressure generator having an inlet and an...
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7131410 |
Solenoid spool valve
A solenoid spool valve includes a spool valve, a spring, and an electromagnetic actuator. The spool valve has a generally cylindrical sleeve provided with a fluid input port and a fluid output port...
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7104283 |
Normally open hydraulic control valve
A normally open hydraulic control valve includes: a linear solenoid unit; a spool driven by an output force of the linear solenoid unit to move forward; a valve body in which the spool is fitted;...
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7100639 |
Control valve
The invention relates to a control valve ( 10 ) for controlling the pressure and flow of hydraulic oil from or to the working connections (A, B) of a consumer. The pressure and the pressure flow...
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7082965 |
Solenoid control valve
A solenoid control valve for use in actuation of a manual hydraulic clutch in a vehicle. The solenoid control valve has an electronically operated solenoid with armature and actuator rod displaced...
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7073533 |
Pressure regulating valve, in particular proportional pressure regulating valve
A pressure regulating valve, in particular a proportional pressure regulating valve, includes a valve body ( 1 ) with at least a pump connection (P), a use connection (A) and a tank connection (T)....
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7069951 |
Proportional solenoid valve for a camshaft adjusting device of motor vehicles
A proportional solenoid valve or a camshaft adjusting device of motor vehicles has a valve housing and a piston movably arranged in the valve housing and provided with at least one pressure medium...
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7066141 |
Linear control valve for controlling a fuel injector and engine compression release brake actuator and engine using same
A linear control valve is disclosed regulating the flow of fluid to hydraulically activated devices, preferably a fuel injector and an engine compression release brake. The valve includes a valve...
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7066206 |
Damper device for hydraulic control valve
A damper device for a hydraulic control valve includes: a valve body; a damper oil chamber to which one end surface of a spool is faced; an oil reservoir chamber which is adjacent to the damper oil...
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7066189 |
Predictive maintenance and initialization system for a digital servovalve
Provided is a servovalve system for regulating fluid flowing within a fluid circuit. The servovalve system comprises a housing, a spool slidably disposed within the housing, a stepper motor...
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7048002 |
Board-mounted manifold valve
A mounting base portion having a plurality of solenoid valve mounting areas is formed on an upper face of a manifold base. A board having an opening portion is mounted onto the manifold base with...
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7044400 |
Solenoid end cap assembly with flat surface
A solenoid end cap assembly having a flat mating surface. The flat mating surface is a single planar mating surface and is designed to mate with a substantially flat mating surface of a valve...
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7036522 |
Solenoid actuated pneumatic valve with an integrated pass-through and a quick mount body
A solenoid actuated pneumatic valve assembly including a valve body having a pressurized air supply inlet port in fluid communication with a source of pressurized air, an outlet port adapted to be...
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7028705 |
High torque failsafe valve operator
A fluid valve operator for moving a moveable valve element such as a disc ( 14 ) that is pressed forcefully against a surface of a valve frame ( 12 ). The valve operator includes first and second...
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7013920 |
Valve, especially proportional solenoid valve
A valve has a solenoid part and a valve part connected to the solenoid part. The valve part has a housing provided with connecting bores for a pressure medium, including a pressure connector and...
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7007925 |
Electrohydraulic valve having an armature with a rolling bearing
A solenoid operated valve has a valve body with a plurality of ports and a spool slidable within the valve body to interconnect the ports in different combinations. An actuator drives the spool...
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7000891 |
Screw-in valve
The invention relates to a screw-in valve comprising a screw-in component, a sleeve with at least two connection openings to which a pressure load can be alternately applied, and a valve piston...
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7000892 |
Pneumatic servo valve
The present invention relates to a pneumatic servo valve, and more particularly, to a pneumatic servo valve, wherein displacement of a spool due to flow force of a fluid is prevented by firmly...
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6994115 |
Thermally actuated microvalve device
A microvalve having a generally planar plate valve body defining a chamber and a plate valve member movable in the chamber about a pivot axis that is perpendicular to the valve body to control the...
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6966337 |
Means for auxiliary manual operation
Auxiliary manual operation on a bistable multiway valve is achieved with a valve member able to be reciprocated with the performance of a switching movement and furthermore operating device...
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6966338 |
Electrohydraulic valve for controlling operation of an engine cylinder valve
An electrically operated valve controls the flow of oil to and from a device that activates and deactivates a cylinder of a multi-cylinder engine. A first valve seat is between an inlet and a...
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6962323 |
Apparatus comprising a rotary-acting pilot valve
A rotary-acting valve is disclosed. In some embodiments, the rotary-acting valve is the pilot or first stage of a two-stage control valve and can be used to create an improved propulsion system for...
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