Seal structure for a rotating cam pressurized fluid device
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United States of America Patent
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Jan 5, 1993
Grant Date -
N/A
app pub date -
Nov 20, 1991
filing date -
Nov 23, 1990
priority date (Note) -
Expired
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Abstract
A mechanism is disclosed, comprising: a cylinder-block; a cam; an internal fluid distributor slide valve presenting a recess whose shape is complementary of a central core; grooves made between internal distributor valve and central core; and seal elements disposed on either side of each groove. According to the invention, each seal element comprises a ring-type joint made of a plastics material, the maximum value of the pressures in the grooves being equal to 450 bars and that of the speed of rotation of the internal fluid distributor valve with respect to the central core, being equal to 200 rpm. One application of the invention is the production of a motor having a satisfactory volumetric efficiency.
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