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| Number | Title | Issue Date |
| 7559526 | Fuel injection valve A fuel injection valve comprises: a solenoid unit including a core, an armature and a coil; and a valve unit including a valve element connected to the armature to travel therewith, and a valve seat that regulates a movement in valve closing direction of the valve e... | 07/14/2009 |
| 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; and a return spring for biasing the spool in a retreating direction. T... | 09/12/2006 |
| 6779496 | Pressure reservoir for exerting pressure on a hydraulic system, with which preferably a gas exchange valve of an internal combustion engine is actuated A pressure reservoir is used to exert pressure on a hydraulic system with which, a gas exchange valve, for instance, of an internal combustion engine can be actuated. The pressure reservoir includes a housing and a piston that is prestressed in operation by a device... | 08/24/2004 |
| 6142176 | Relief valve A relief valve, including a case having an inner bore, and an opening defining an outlet; a valve seat adjacent to a forward end of the case, the valve seat defining an inlet, a plunger slidably disposed within the case and pressed forward by a spring to ... | 11/07/2000 |
| 5941267 | Electrically controlled flow regulator valve with transient dampening An electrically controlled flow regulator valve assembly having a diaphragm operated pressure regulator valve with a solenoid operated valve for by-passing the diaphragm to control flow to the regulator valving chamber. In one embodiment the regulator val... | 08/24/1999 |
| 5921261 | Dampening resonance in a flow regulator A diaphragm type flow regulator has an electrically operated bleed valve to control fluid signal pressure in a chamber on one side of the diaphragm. A valve member mounted on the opposite side of the diaphragm is moved, in response to the difference in pr... | 07/13/1999 |
| 5651501 | Fluid damping of a valve assembly A valve for use in a fuel injector includes a moveable valve member disposed in a first chamber and an armature coupled to the valve member and reciprocally disposed in a second chamber which dampens the motion of the valve member when fluid is present in... | 07/29/1997 |
| 4373587 | Fluid displacement well safety valve In a well safety valve for controlling the fluid flow through a well conduit in which the valve has a housing and a flow tube controlling a valve element, the improvement in means for opening and closing the valve. A gas chamber is positioned in the housi... | 02/15/1983 |
