Central-lubrication assembly
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United States of America Patent
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-
Feb 23, 1993
Grant Date -
N/A
app pub date -
Jan 9, 1992
filing date -
Jan 10, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a central-lubrication assembly for vehicles, with a lubricant reservoir, with a lubricant pump connected on the inlet side to the lubricant reservoir and on the outlet side to at least one lubricant distributor, there is used for the pressure relief of the lubricant distributor and for limiting the pressure built up by the lubricant pump a combined pressure-relief and pressure-limiting valve (6) which is equipped with a piston (9) displaceable counter to the effect of a return spring (8) in a bore (7) of a housing (5). The piston (9) can assume three different working positions, in a first position the pressure relief being obtained, and in a third position pressure limitation in the system being ensured.
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