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8176939 |
Fluid pressure equipment provided with low sliding packing
A packing attached to a spool of a spool valve has a ring-shaped inner-peripheral seal portion provided with an inner-peripheral seal face, a ring-shaped outer-peripheral seal portion provided with...
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8167000 |
Balanced solenoid valve
A valve assembly includes a solenoid can having an internal coil. A valve body connected to the solenoid can includes an inlet port and a first valve seat. An axially adjustable retainer threadably...
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8151824 |
Balanced solenoid valve
A valve assembly includes a solenoid can having an internal coil. A valve body connected to the solenoid can includes an inlet port and a first valve seat. An axially adjustable retainer threadably...
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8141842 |
Solenoid valve
A solenoid valve includes a valve housing in which a spool valve element is fitted to be reciprocably slidable along an axis; a magnet coil that moves the spool valve element in a first direction...
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8118059 |
Control valve for a camshaft adjuster
A control valve for a hydraulic adjuster for the camshaft of an internal combustion engine is provided, wherein an actuator acts on a pressure part (12) embedded in a control piston (5). In order...
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8100145 |
LIFD valve assembly
An LIFD valve assembly has a pressure balance device a pressure balance slide of which is urged in the opening direction by a pressure downstream of a metering aperture and in the closing direction...
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8082952 |
Piezoelectric bending element actuator for servo valve
A valve assembly includes a valve housing. A valve body is movable within the housing. The valve body has a land to selectively block or communicate a supply port to an outlet. A piezoelectric...
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7980270 |
Spool valve apparatus and method
Some embodiments of the present invention provide a spool valve having a spool axially movable within a sleeve of two or more stacked rings having projections extending therebetween. One or more...
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7980269 |
Control valve assembly for load carrying vehicles
A control valve assembly for a load carrying vehicle that includes a storage space and a dumping mechanism that is movable between an open position that allows access to the storage space and a...
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7950416 |
Solenoid valve
In a solenoid valve including a cylindrical sleeve which is formed with an input port, an output port, a drain port and a feedback port, and a spool which is inserted into the sleeve and which is...
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7921879 |
Control valve for a hydraulic motor
A pilot valve (3) is designed as a directional control valve in which a control slide (20) is movably disposed in a longitudinal bore (22) of the valve body (21) so as to control the flow of...
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7921878 |
Control valve with load sense signal conditioning
A control valve comprises a valve body having a fluid inlet and at least one work fluid outlet for supplying pressurized fluid to the fluid operated device. A valve member is movable in the valve...
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7909060 |
Pressure control valve
A pressure control valve includes a sleeve on which an input port, an output port, and drain ports are formed; and a linear solenoid portion for generating thrust. The pressure control valve...
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7874541 |
Proportional solenoid and flow control valve employing thereof
A proportional solenoid 5 comprising: an electromagnetic coil 9; a fixed yoke 10 provided immovably inside the electromagnetic coil 9 and having a convex portion 13 formed at an edge portion of an...
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7856999 |
Automatic transmission having hydraulic valves with flow force compensation
An automatic transmission having at least one hydraulic valve with flow force compensation. The hydraulic valve includes a valve body having a valve bore and at least one inlet and at least one...
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7841361 |
Electromagnetic hydraulic valve
An electromagnetic hydraulic valve (1), in particular proportional valve, for controlling a device for the rotational angle adjustment of a camshaft relative to a crankshaft of an internal...
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7823604 |
Exhaust apparatus pressure control system
A pressure control system is disclosed. The control system in one embodiment includes a main body comprising a pilot chamber wherein an intake port and a discharge port are formed, and a spool...
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7815016 |
Lubrication control system for automatic transmissions
An automatic transmission lubrication control system includes a modulating, spring biased spool valve and feedback circuit. One end of the spool valve is supplied with line pressure hydraulic...
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7784494 |
Flow divider
A flow divider includes a spool for distributing fluid from a supply flow path to priority and surplus flow paths. First and second surplus restrictions vary flow rate in accordance with the...
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7784493 |
Manual valve of a hydraulic pressure control system for an automatic transmission
A manual valve of a hydraulic pressure control system for an automatic transmission includes: a valve body including a first exhaust passage that includes an exhausting hole and an intake hole that...
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7770597 |
Spool valve device
A spool valve system includes a valve main body with, from a first side to a second side, an input port to which an input pressure is supplied, an output port that outputs an output pressure, and a...
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7748408 |
Closing device
A closing device for closing channels in which pressure fluid is conveyed in a housing. The closing device includes a sealing body that is designed as a sleeve member, the peripheral surface of...
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7726341 |
Multi-way valve
A multi-way valve has a housing with a stepped bore forming two piston guiding regions and a shoulder ring with two sealing shoulders. The housing also has a first, second and central transverse...
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7721758 |
Valve with increased dynamic response
A valve (1) comprises: a body (2); a bushing (3) slidably mounted on said body; a valve spool (4) slidably mounted on said bushing; said bushing and spool having respective control edges (5) that...
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7650907 |
Hydraulic control apparatus
A hydraulic control apparatus for a single action cylinder includes a switch valve for supplying fluid to and draining fluid from the cylinder, a cylinder side passage connected to the cylinder, a...
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7637280 |
Dual-inlet selective flow regulating valve
A fluid distribution and control valve for respiratory gas delivery systems. The valve has a body which is defined by four internal zones. Each zone is connectable to an external fluid circuit 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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7604022 |
Manual valve of hydraulic control system for continuously variable transmission
In order to minimize shift shocks during R→N and D→N manual shifts, in a manual valve of a hydraulic control system of a continuously variable transmission including a valve body having one inp...
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7584728 |
Method and apparatus for operating an oil flow control valve
An oil flow control valve (10) in a combustion engine is operated for affecting a cam phaser (26) disposed at an output side of said oil flow control valve (10). The cam phaser includes a spool...
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7516758 |
Spool-type manual valve with position-adjustable lever
A manually actuated cartridge valve assembly (15) has a main body (31), a valve assembly (33), and an end assembly (35). Disposed within an internal cavity (107) of the end assembly (35) is a...
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7513227 |
Valve timing control device
A valve timing control device includes a driving side rotational member, a driven side rotational member, a retarded angle chamber, an advanced angle chamber, a first control valve, a supply...
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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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7503115 |
Electromagnetic hydraulic valve, in particular a proportional valve for controlling a device for adjusting the rotation angle of a camshaft relative to the crankshaft in an internal combustion engine, and a method for the production thereof
An electromagnetic hydraulic valve (1), which including an electromagnet (2) with an armature (3) and of a valve housing (4) with an axial bore (5) and a piston valve (6) located therein is...
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7448833 |
Automatic tool changing assembly for a machine tool
An automatic tool changing assembly for a machine tool has a bottom frame, a base, a cylinder block, an air motor and an air transporting device. The bottom frame is securely mounted on the machine...
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7438088 |
Electromagnetic pilot type directional control valve
To obtain a directional control valve superior in workability and maintenanceability by mounting a pilot valve, a printed circuit board and the like on a top surface of a main valve section...
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7431043 |
Automatic transmission having a pressure regulator with flow force compensation
An automatic transmission having a pressure regulator with flow force compensation. The pressure regulator includes a valve body having a valve bore and at least one inlet and at least one outlet...
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7422033 |
Position feedback pilot valve actuator for a spool control valve
A spool type control valve is operated by an electrically driven pilot valve. A pilot piston is attached to the control spool. As an electrical actuator moves the pilot spool, a greater pressure is...
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7409937 |
Hydraulic control system for internal combustion engine
A hydraulic control system for an internal combustion engine, includes a driven mechanism driven by hydraulic pressure fed through a flowing passage change-over valve. The flowing passage...
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7380570 |
Three-way valve for use with paintball markers
A novel three-way valve comprising a valve body, a valve sleeve for adjustable position mounting within the body, and a valve stem movable so as to selectively form a pathway between line recesses...
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7380571 |
Directional control valve
A valve accommodating hole (11), and each of a supply port (20), discharge ports (21 and 22), and output ports (23 and 24) connected to the valve accommodating hole are formed in a valve casing...
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7343934 |
Proportional pressure control valve with control port pressure stabilization
A proportional pressure control valve which includes an electric first stage pilot having a single outlet port configured to provide a variable pressurized hydraulic fluid to the outlet port and at...
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7337807 |
Hydraulic control valve with regeneration function
The present invention A hydraulic control valve with a regeneration function, including a main body formed of a supply fluid passage to which pressurized fluid is supplied, at least one port, a...
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7320337 |
Fluid distribution and control valve and use thereof to supply enriched air to the occupants of an aircraft
An apparatus and a method for fluid distribution and control. A valve body defines at least two pairs of chambers which are each connectable to an external fluid circuit. A mobile structure, which...
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7306009 |
Hydraulic control valve
A tandem hydraulic valve comprising first and second axially aligned valve spools, a valve guide slidably receiving said valve spools to control, in use, the connection between respective ports of...
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7191799 |
Annular port construction for valve applications
A body element for a spool valve is provided that includes a body having an inner surface that defines an internal valving chamber having a longitudinal axis, and at least one transverse surface to...
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7150288 |
Control valve apparatus
A control for parallel hybrid transmission has a valve mechanism, which is operable to supply fluid pressure to a torque-transmitting mechanism with or without the operation of the vehicle engine....
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7146998 |
Hydraulic valve
A stepped down groove 53 is provided around the peripheral surface of a rod portion 43 of a spool 40 which faces a third oil groove 33. Both the axial ends 53a and 53b of the stepped down groove 53...
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7117881 |
Control system
The invention relates to a control system, especially a hydraulic control system for a transmission, including a valve assembly, especially a directional valve assembly, designed for controlling a...
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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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7093607 |
Methods and apparatus for maintaining pressure gain in a servovalve assembly
A servovalve has a sleeve having both a first metering aperture and a second metering aperture in fluid communication with a single port cavity defined by the servovalve. A spool oriented within...
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