Hydraulically operated valve with controlled lift
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United States of America Patent
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-
Sep 17, 1991
Grant Date -
N/A
app pub date -
Apr 11, 1990
filing date -
Apr 12, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulically operated valve with controlled lift, in particular a fuel/gas injection valve for internal combustion engines, has a stop face fixed on the valve stem. For accurate control of the opening of the valve a stop cam is provided, which is drivn mechanically via a friction clutch, and which cooperates with the stop face. By rotating the cam through a predetermined angle the maximum valve lift will be obtained. The cam may be brought into contact with the stop face even in the closed position of the valve.
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