Seal structure for a rotating cam pressurized fluid device

Details Seal structure for a rotating cam pressurized fluid device Seal structure for a rotating cam pressurized fluid device

1991-11-20

1993-01-05

Bertsch, Richard A.

Rotary expansible chamber devices

With mechanical sealing

91498, 417462, F01B 106, F03C 124

Patent

active

051765110

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.

REFERENCES:
patent: 444901 (1891-01-01), Abbe
patent: 4440067 (1984-04-01), Klie et al.
patent: 4898076 (1990-02-01), Bigo et al.
patent: 5090295 (1992-02-01), Cunningham

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