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Class 251/30.01 - Electrically actuated pilot valve


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which the auxiliary or pilot valve controlling
No. of patents: 265
Last issue date: 03/06/2012


1              
NumberTitleIssue Date
8128056Flow control valve
Provided is a flow control valve including: a valve body including a flow passage; a first poppet being fixed within the valve body, and including an inlet port through which a fluid flows in and an outflow hole through which the fluid flows out to the flow passage;...
03/06/2012
7793912Fluid pressure actuated poppet valve
In a valve body, an input chamber is located between a small diameter slide hole, which slidably supports a small diameter portion of a slidable valve, and a large diameter slide hole, which slidably supports a large diameter portion of the slidable valve, at a loca...
09/14/2010
7419134Valve actuation assembly
A valve actuation assembly includes a housing and a vane connected to a shaft. The vane is at least partially disposed within the housing. The valve actuation assembly further includes a valve assembly connected to the housing and a feedback device connected to at l...
09/02/2008
7413160Method for determining a closing time of a closing element and circuit arrangement
In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value fr...
08/19/2008
7392971Infinitely variable directional valve
Disclosed is an infinitely variable directional valve comprising a seat slide on which a valve cone is formed which is prestressed counter to a valve seat in the initial position of the directional valve. The directional valve is configured with a pilot control devi...
07/01/2008
7380568Water flow controller
An apparatus for controlling water flow is provided. The apparatus is a novel electronic water controller capable of operation using a battery-type power source, and providing for achievement of long battery life. The apparatus generally comprises an electronic cont...
06/03/2008
7353844Solenoid-operated safety valve device particularly for a washing machine
The solenoid valve device (1) comprises a duct (3, 10, 10′, 4) with an inlet (3) and an outlet (4) and in which are formed first and second valve seats (5, 6) in series with one another, each between a respective inlet chamber (
04/08/2008
7334770Solenoid isolation valve
An improved pilot-operated, “instant-on”, solenoid isolation valve discloses a new fluid passage route to save cost of drilling a longitudinal hole within the primary piston. Also, a new feature of primary piston assembly with a movable seal piston having a spec...
02/26/2008
7331565On/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 distributing loads on the control valve body, and armature vent featu...
02/19/2008
7325781Automatic bathroom flushers with modular design
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
02/05/2008
7318489Hydraulic motor arrangement and method of operating a hydraulic motor
A hydraulic motor for use in subterranean drilling operations in which a drive fluid within a first reservoir is forced through the motor by a high pressure working fluid, such as drilling mud, the drive fluid entering a second reservoir upon exiting the motor. Upon...
01/15/2008
7318447Pressure loaded pilot system and method for a regulator without atmospheric bleed
A pressure loaded pilot valve system and method for a regulator valve is provided. The system includes a regulator valve connecting an inlet line to an outlet line, a servo control valve assembly, and a pilot valve assembly. A supply line is connected to the servo c...
01/15/2008
7314059Systems and methods for controlling pressure of fluids
Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a setpoint pressure control system to accurately control the setpoint ...
01/01/2008
7243729Subsea junction plate assembly running tool and method of installation
The invention relates to a running tool for subsea junction plate assembly installation. The invention further relates to a method for installing a junction plate assembly using the running tool of the present invention. ...
07/17/2007
7240604Electro-hydraulic metering valve with integral flow control
A metering valve for a work machine hydraulic system is disclosed. The metering valve has a valve body with an inlet and an outlet. The metering valve also has a main poppet disposed within the valve body between the inlet and the outlet. The main poppet has a nose ...
07/10/2007
7240894Pulse width modulated solenoid
A pulse width modulated solenoid control valve is described, wherein the valve includes a polymer fluid control body. The body includes a segmented fluid flow path for providing strength to the fluid control body assembly. Stand off ribs are provided to improve asse...
07/10/2007
7237563Dish washer and device for controlling washing water flow passage therein
Device for controlling a washing water flow passage in a dish water for controlling the washing water supplied to arms for spraying washing water to dishes. The device for controlling a washing water flow passage includes an inlet tube, first, second, third, and fou...
07/03/2007
7234706Sealing system for multiple fluids
A seal (301) has a first surface capable of contacting a valve cover (101) over a first fluid while a second surface, opposed to the first surface, is capable of contacting a seal seat (303). The seal (301) also has a third surface capabl...
06/26/2007
7234483Electro-pneumatic air pressure regulator
An electro-pneumatic air pressure regulator includes a primary pressure introduction port, a secondary pressure output port, a pilot pressure chamber, a main valve for opening and closing a communicating conduit, a floating piston which actuates the main valve, a no...
06/26/2007
7222639Electrostatically actuated gas valve
A gas valve body with a first flow chamber and, a second flow chamber including and a main valve positioned in line and between the first flow chamber and the second flow chamber. The main valve can be opened by creating a pressure differential across the main valve...
05/29/2007
7214216Drainage chamber for collecting body fluids, in particular liquor
A drainage chamber for collecting body fluids, in particular liquor, includes a collecting area limited by an outer wall for collecting the body fluid, an inlet connection linked to the collecting area for linking to a drainage catheter (an intraventricular catheter...
05/08/2007
7210502Microvalve 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 valve for use as a microvalve are also disclosed. ...
05/01/2007
7207351Switching valve with position detecting mechanism
In a switching valve containing a valve member for opening and closing a valve seat and a piston for driving the valve member by the action of a pilot fluid pressure inside a valve housing, a magnet for positional detection is attached to the piston, two sensor atta...
04/24/2007
7201180Water supply system
A water supply system comprising a supply line and a network of consumers, one of which being a monitored consumer who receives the least amount of pressure, a pressure regulation system comprising a pressure reducing valve (PRV) associated with a pilot valve preset...
04/10/2007
7194990Electro-hydraulic engine valve actuation
Hydraulic actuator as an element of a system for controlling an engine valve is presented. The actuator includes a fluidic actuation chamber, defined by an actuation piston that increases chamber volume as the actuation piston is urged away from a neutral. Chamber i...
03/27/2007
7188822Enclosures for automatic bathroom flushers
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
03/13/2007
7163188Solenoid valve for fluid flow
A solenoid valve is provided that comprises a valve body having an inlet and an outlet, and a movable member for moving a valve element away from a valve seat to open the valve. The moveable member engages and moves the valve element away from the seat to an open po...
01/16/2007
7156363Bathroom flushers with novel sensors and controllers
A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl...
01/02/2007
7137406Self-cleaning filter
A self-cleaning filter for use in a valve is disclosed. The valve can include a bore, an orifice disposed in the bore for accommodating a fluid flow therethrough, and a filter disposed in the bore between the input port of the fluid flow being filtered and the orifi...
11/21/2006
7131633Manually controlled replacement solenoid for hydraulic valves
Solenoid controlled hydraulic valves in sealed hydraulic circuits are provided with backup actuation without compromise of the hydraulic circuit by provision of an auxiliary, quick fitting solenoid coil case which incorporates manual switches and which may be attach...
11/07/2006
7118086Pinch valve with inlet and outlet ports
A pinch valve includes a body with a passageway extending therethrough, a flexible sleeve mounted within the body and surrounding the passageway, and a cavity between the sleeve and the body. An inlet opening provides control fluid flow into the cavity, while an out...
10/10/2006
7107952Actuating device for securing a camshaft of an engine of a motor vehicle in a start position
An actuating device for hydraulically securing a camshaft of an engine of a motor vehicle in a start position has a solenoid valve controlling the flow of a pressure medium to a camshaft adjuster with a rotary slide valve that is fixedly connected to the camshaft an...
09/19/2006
7104282Two stage solenoid control valve
A two stage solenoid control valve is described. The control valve opens and closes using a single source of pressurized fluid. This source of pressurized fluid may be transmitted through the solenoid control valve and on to a downstream valve such as a bleed valve ...
09/12/2006
7097151Electromagnetic fuel injection valve
An electromagnetic fuel injection valve (I) is provided that includes a fixed core (5) made of a high hardness ferrite magnetic material, and a movable core (12) that has fixed thereto by press-fitting a stopper element (14) that is nonmagnetic ...
08/29/2006
7086358Method and device for controlling the speed of the valves of an internal combustion engine
A method of controlling the speed of the valves in an electro-hydraulic actuation unit for the valves of an internal combustion engine in which the pressure of the fluid in the hydraulic actuator of the valve is controlled during the final phase of closure of a valv...
08/08/2006
7083156Automatic proximity faucet with override control system and method
A hands-free device includes a sensor, a motor, a pilot valve, a gear train, an arm, and, an override control. The pilot motor opens the pilot valve when an activation signal is received from the sensor. The arm is coupled to the gear train, and the override control...
08/01/2006
7073771Porous valve assembly
A valve assembly for controlling the flow of a predetermined fluid, including a tube having an open end forming an outlet port, and wherein the tube is made of a material that is porous with respect to the predetermined fluid, an outer wall forming a fluid chamber c...
07/11/2006
7069728Multi-position BOV actuator
A multi-position pressurized fluid actuator is mounted for movement in a casing. The actuator includes at least one selectively openable opening at a location corresponding to an intermediate position through which pressurized fluid can be selectively bled from the ...
07/04/2006
7063054Valve driving device of an internal combustion engine
The object of the present invention is to provide a camless valve driving device, without having a cam mechanism, which can reduce the valve driving energy and enhances fuel efficiency. According to the one preferred aspect of the present invention, the valve drivin...
06/20/2006
7058489Method and device for treating suspected errors
A method and a device are provided for producing an error signal and carrying out measures based thereon in a motor vehicle equipped with a wheel-slip control system and/or a wheel deceleration control system. At least one function variable representing the function...
06/06/2006
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