High-pressure pump with an on-off valve for feeding fuel to an internal combustion 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, w...

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Bibliographic Details
Main Authors GRABERT PETER, CIMAGLIA NICOLA, BANZHAT WERNER
Format Patent
LanguageEnglish
Published 27.04.2004
Edition7
Subjects
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Summary: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.
Bibliography:Application Number: US20020318876