Sieve filter for fluid conduits, especially for hydraulic pressure lines in internal combustion engines
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United States of America Patent
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-
Sep 2, 2003
Grant Date -
Jun 20, 2002
app pub date -
Dec 18, 2001
filing date -
Dec 19, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A sieve filter (1) for fluid lines or conduits which are formed of an annular disk-like fluid inlet (3) and an annular disk-like fluid outlet (4) with a fine mesh filter element arranged there between that is braced by stiffening bars (5), and which has a bypass function when the filter element (6) is stopped up or with highly viscous fluid. The fluid inlet (3) of the sieve filter (1) is constructed with the bypass function in that it has a smaller outside diameter than the fluid outlet (4) and is sealed off by a pressure relief valve (7). When the filter element (6) is stopped up or with highly viscous fluid in the line, the fluid inlet (3) is cleared by opening the pressure relief valve (7) as a bypass, through which the fluid is conducted unfiltered to the fluid outlet (4) of the sieve filter (1).
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