Arrangement in camshaft adjusters for preventing starting noises
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United States of America Patent
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-
Apr 27, 1999
Grant Date -
N/A
app pub date -
Aug 18, 1997
filing date -
Feb 20, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve control device for an internal combustion piston engine adjusts positions of rotation of a camshaft relative to a crankshaft. This device comprises a hydraulic cylinder (1) comprising a piston (2) and at least one first feed duct (4). Between the cylinder (1) and a hydraulic pump (8), there is disposed a hydraulic valve arrangement (6) by which a hydraulic connection can be established between the first feed duct (4) and a first outlet duct. To assure a reliable prevention of rattling noises during the starting operation, it is proposed that the first outlet duct (10) open into a fluid reservoir (7) below the level of liquid therein.
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