Class / Patent application number | Description | Number of patent applications / Date published |
251129070 | Balanced valve | 14 |
20080296524 | Control Valve for a Refrigerant Compressor and Refrigerant Compressor - A refrigerant compressor has a control valve for controlling the degree of conveyance of the refrigerant compressor by setting a drive housing pressure p | 12-04-2008 |
20090045364 | Pressure Compensating Method - A control valve ( | 02-19-2009 |
20130082199 | CONTROL VALVE - A control valve according to an embodiment includes a guide member of a cylindrical shape extending coaxially with a valve hole, a valve element of a bottomed cylindrical shape for opening and closing a valve section such that the valve element touches and leaves the valve hole, and a pressure-canceling structure for canceling out at least part of pressure acting on the valve element by introducing a working fluid into a back pressure chamber via a leak passage, the pressure-canceling structure including the back pressure chamber, surrounded by the valve element and the guide member, and the leak passage communicating between the valve hole and the back pressure chamber. A sliding portion and a spacing are formed in an overlapped portion which is a region overlapped by the valve element and the guide member. The sliding portion is connected circumferentially at least when the valve section is closed, and the proportion of the spacing occupied in the overlapped portion is larger than the proportion of the sliding portion occupied at the time when the valve section is open. | 04-04-2013 |
20130105714 | Apparatus For A Pneumatic Relay Venting Pressure Dynamic Feedback Compensator | 05-02-2013 |
20130207012 | PRESSURE BALANCED SOLENOID OPERATED VALVE - A pressure balanced solenoid operated valve includes a solenoid portion having a coil in a coil retainer. A valve member portion defines a body connected to the solenoid portion. A slidable valve member in the body has opposed first and second ends and a shoulder between the ends. The first end with the coil energized is magnetically drawn toward the coil retainer moving the valve member between a valve closed and a valve open position. A pressure equalizing passage extends in the valve member from the second end. An inlet passage communicates a pressurized fluid at a valve inlet port to the pressure equalizing passage. A connecting passage communicates between the pressure equalizing passage and the shoulder. The pressurized fluid in the pressure equalizing passage acts against the second end and equally and oppositely against both the shoulder and the first end in both the open and closed positions. | 08-15-2013 |
20140326909 | PRESSURE-BALANCED CONTROL VALVES - Embodiments of the present disclosure are directed to pressure balanced solenoid control valve for high flow and/or high pressure control applications. An all-sealed integrally formed element functions as both the bellows and spring and is used as a replacement for the combination of both the individual bellows and spring found in existing pressure balanced control valves. The single bellows spring provides a spring force on the movable valve plug and separates opposite sides of the valve plug, wherein a gas passageway is provided between opposite sides of the valve plug so that gas provided at the inlet will flow to opposite sides of the valve plug so as to cancel any pressure forces provided on opposite sides of the valve plug by the pressure of the inlet gas. | 11-06-2014 |
20150041692 | PRESSURE REGULATING VALVE FOR REGULATING PRESSURE IN A HIGH- PRESSURE FUEL ACCUMULATOR FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a pressure regulating valve for regulating pressure in a high-pressure fuel accumulator for an internal combustion engine, comprising a valve piston ( | 02-12-2015 |
20150048268 | ELECTROMAGNETIC VALVE, IN PARTICULAR FOR SLIP-CONTROLLED MOTOR VEHICLE BRAKE SYSTEMS - The invention relates to an electromagnetic valve, comprising a valve tappet, which is arranged in a valve housing and which can open or close a valve passage in the valve housing, a magnet armature, which is provided in order to actuate the valve tappet and through which a hole passes for accommodating the valve tappet, and a restoring spring, which acts on the valve tappet and the spring end of which facing away from the magnet armature is supported on a magnet core in the valve housing. For precise valve adjustment, an adjustment sleeve is fixed in the hole of the magnet armature, in which adjustment sleeve the valve tappet is fastened in some sections at the same time. | 02-19-2015 |
20150069278 | ELECTRO-HYDRAULIC SERVO VALVE | 03-12-2015 |
20150090912 | PRESSURE CONTROL VALVE - A pressure control valve includes a housing with a lower part and an upper part. The housing includes a coil wound on a coil carrier, an armature configured to be axially displaceable within a bearing, a core, a flux guiding device, a connection bore, and a connector comprising a valve seat for the armature. The connector and the connection bore are disposed in the lower part of the housing. The upper part of the housing is arranged in a force-locked or a form-fitting manner. A bearing bushing for the armature is provided in a portion of the connector directed towards the core. A stop bushing for the armature is provided in an opposite portion of the connector. | 04-02-2015 |
20150102242 | NORMALLY LOW SOLENOID VALVE ASSEMBLY - A solenoid assembly for providing control over fluid pressure distribution in a transmission, where the solenoid assembly includes a solenoid portion and a valve portion, and the movement of the valve portion is controlled by the solenoid portion. There is a valve which is part of the valve portion, and the valve controls the distribution of fluid between a supply port, a control port, and an exhaust port. The distribution of fluid between the ports may include providing a pressure balance between the supply port and the control port, and allowing any excess fluid to pass through the exhaust port, or controlling the flow of fluid between the supply port and the control port, with any excess fluid exiting the exhaust port. | 04-16-2015 |
20150102243 | NORMALLY HIGH SOLENOID ASSEMBLY - A solenoid assembly for providing control over fluid pressure distribution in a transmission, where the solenoid assembly includes a sleeve, a valve portion substantially contained within the sleeve, an armature located within the sleeve, a plunger connected to the armature and in contact with the valve, and a housing located within the sleeve in proximity to the armature. The armature is moveable relative to the sleeve and the housing, and the valve portion includes a valve, where the movement of the valve is controlled by the movement of the armature. The valve is biased towards an open position to provide a fluid pressure balance between multiple ports. | 04-16-2015 |
20150330529 | Electromagnetically operable high-pressure gas valve - The invention relates to an electromagnetically operable high-pressure gas valve, which is embodied as a pilot valve with a pilot seat and a pilot opening and a main seat with a main opening, with the pilot opening connecting a high-pressure side with a low-pressure side of the valve and it being possible to close it via a main sealing element, the main opening connecting the high-pressure side to the low-pressure side of the valve and it being possible to close it by a main sealing element, and the valve comprising a pilot anchor which acts upon the pilot sealing element, and comprising a main anchor, which acts upon the main sealing element, with the valve comprising a coil that is suitably embodied and arranged to act upon the pilot anchor and the main anchor such that a pilot stroke and a main stroke are independent from each other. | 11-19-2015 |
20160131276 | ELECTROMAGNETIC CONTROL VALVE - An electromagnetically-driving section, an adjusting spring (setting adjustment section), a pressure equalizing chamber, and a diaphragm (pressure sensing section) are disposed opposite a valve port on an axis line L of the valve port with respect to the valve body therebetween. The valve body, and an aperture, a vertical path, and a lateral path in the valve member (pressure equalizing path) ensure electrical continuity between the valve port and the pressure equalizing chamber. The valve port is coaxial with the second port. A tapered surface is formed in the lower end portion of the valve body, and a helical compression spring causes a sliding surface of a spring holding member which has a spherical shape to abut on the tapered surface. | 05-12-2016 |