High-pressure pump with an on-off valve for feeding fuel to an internal combustion engine
The present invention relates to a high-pressure pumps with an on-off valve for feeding fuel to an internal combustion engine, particularly a vehicle engine. The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump. The on...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
27.04.2004
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Online Access | Get full text |
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Summary: | The present invention relates to a high-pressure pumps with an on-off valve for feeding fuel to an internal combustion engine, particularly a vehicle engine.
The pump has a body including at least a fuel compression chamber and an actuating chamber enclosing the actuating members of the pump. The on-off valve has a shutter sliding inside a hole in the body to close a fuel feed conduit. The shutter is held in the closed position by a compression spring, which rests directly or indirectly on a shoulder in the hole. In one embodiment, the spring rests on the shoulder via a perforated disk held by a retaining ring, which clicks removably inside an annular groove in the hole. In a further embodiment, the spring rests directly on the shoulder. |
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