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Class Information
Number: 137/625.69
Name: Fluid handling > Systems > Multi-way valve unit > Supply and exhaust > Reciprocating valve > Piston valve > With annular passage (e.g., spool)
Description: Device wherein an annular exterior flow passage for the line fluid is provided between adjacent seat engaging heads.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8684041 Control valve for a device for variably adjusting the valve timing for gas exchange valves in an internal combustion engine Apr. 1, 2014
8684038 Slide-type pressure control valve having improved damping behavior Apr. 1, 2014
8678340 Hydraulic control valve apparatus for automatic transmission Mar. 25, 2014
8672645 Separation type pneumatic dual partition membrane pump and external pneumatic control valve thereof Mar. 18, 2014
8671986 Hydraulic controller Mar. 18, 2014
8647075 Control valve for a variable displacement pump Feb. 11, 2014
8622087 Control valve Jan. 7, 2014
8616415 Dispenser Dec. 31, 2013
8607824 Valve and dispenser using the valve Dec. 17, 2013
8602060 Multiplexing control valve Dec. 10, 2013
8578967 Pressure regulating valve for aircraft engine Nov. 12, 2013
8567443 Spool-type selector valve Oct. 29, 2013
8550116 Twin power valve with integrated pressure balance Oct. 8, 2013
8528600 Hydraulic valve Sep. 10, 2013
8495976 Oil control valve and hydraulic control apparatus Jul. 30, 2013
8485223 Hydraulic control valve Jul. 16, 2013
8464758 Valve system Jun. 18, 2013
8464757 Hydraulic valve device Jun. 18, 2013
8464756 Spool valve Jun. 18, 2013
8453678 Piloted poppet valve Jun. 4, 2013
8434518 Control valve May. 7, 2013
8418724 Solenoid valve Apr. 16, 2013
8413685 Control valve Apr. 9, 2013
8364364 System and method for controlling unpowered to powered transitions in vehicles having dry dual clutch transmissions Jan. 29, 2013
8327884 Regulator valve Dec. 11, 2012
8316889 Control valve for a camshaft adjuster Nov. 27, 2012
8272403 Valve part of a hydraulic control valve Sep. 25, 2012
8267120 Control valve assembly for load carrying vehicles Sep. 18, 2012
8251189 Railway brake cylinder Aug. 28, 2012
8251098 Slide vane for hydraulic power steering Aug. 28, 2012
8251097 Sliding valve Aug. 28, 2012
8245729 Exhaust venting for a fluid control device Aug. 21, 2012
8240335 Fueling valve for fueling a remote control vehicle Aug. 14, 2012
8241179 Hydraulic control apparatus of continuously variable transmission of hybrid vehicle Aug. 14, 2012
8210206 Dual redundant servovalve Jul. 3, 2012
8210208 Electrically operated hydraulic valve Jul. 3, 2012
8210207 Directly piloted valve assembly Jul. 3, 2012
8201580 High flow capacity positioner Jun. 19, 2012
8176939 Fluid pressure equipment provided with low sliding packing May. 15, 2012
8167000 Balanced solenoid valve May. 1, 2012
8151824 Balanced solenoid valve Apr. 10, 2012
8141842 Solenoid valve Mar. 27, 2012
8118059 Control valve for a camshaft adjuster Feb. 21, 2012
8100145 LIFD valve assembly Jan. 24, 2012
8082952 Piezoelectric bending element actuator for servo valve Dec. 27, 2011
7980269 Control valve assembly for load carrying vehicles Jul. 19, 2011
7980270 Spool valve apparatus and method Jul. 19, 2011
7950416 Solenoid valve May. 31, 2011
7921879 Control valve for a hydraulic motor Apr. 12, 2011
7921878 Control valve with load sense signal conditioning Apr. 12, 2011

1 2 3 4 5 6 7 8 9










 
 
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