Abstract: A fuel injector for a compression ignition internal combustion engine which comprises a fuel injection valve having an injection valve member which is moveable in use, under the influence of fuel pressure within an injection valve member control chamber acting upon it, between a closed position and an open position. The fuel injector further comprises a high pressure fuel supply passage to the injection valve member control chamber, and an actuator operable to open and close a discharge valve connected between the injection valve member control chamber and a fuel outlet passage to a low pressure reservoir or drain. A shut-off valve is provided in the high pressure fuel supply passage and the shut-off valve has a shut-off valve member which is moveable in use, under the influence of fuel pressure within a shut-off valve member control chamber acting upon it, between a closed position and an open position.

Abstract: A fuel injector for a compression ignition internal combustion engine which comprises a fuel injection valve having an injection valve member which is moveable in use, under the influence of fuel pressure within an injection valve member control chamber acting upon it, between a closed position and an open position. The fuel injector further comprises a high pressure fuel supply passage to the injection valve member control chamber, and an actuator operable to open and close a discharge valve connected between the injection valve member control chamber and a fuel outlet passage to a low pressure reservoir or drain. A shut-off valve is provided in the high pressure fuel supply passage and the shut-off valve has a shut-off valve member which is moveable in use, under the influence of fuel pressure within a shut-off valve member control chamber acting upon it, between a closed position and an open position.

Abstract: The piston with a valve for a hydraulic damper tube, comprises a piston body (116) having a fluid passage (112) interacting with a floating valve element (115) for controlling in both directions the amount of fluid flowing through the passage. The floating valve element includes a spring washer (115), the deflection (f) of which in the free state is between approximately 0.1 times and approximately 2 times the thickness (e) of the washer.

Abstract: A shock absorber for a motor vehicle includes a compression stoke valve having one or more deflectable discs mounted on the piston on the rebound chamber side and a rebound stroke valve having one or more deflectable discs mounted on the piston on the compression chamber side. A compression flow passage extends through the piston, opening at one end into the compression chamber and having an opening at the other end into the rebound chamber which is closable by the deflectable disc or discs of the compression stroke valve. A rebound flow passage extends through the piston, opening at one end into the rebound chamber and having an opening at the other end into the compression chamber which is closable by the deflectable disc or discs of the rebound stroke valve. One or both valves further includes a flexible disc positioned between the deflectable disc or discs and the piston and extending partly across the associated passage to leave an opening in the passage.