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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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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;...
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...
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...
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)....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...