Multiple cylinder-capacity pressurized fluid (motor or pump) mechanism
Radial piston engine Patent #: 5090295
ApplicationNo. 795040 filed on 11/20/1991
US Classes:418/104, WITH MECHANICAL SEALING91/498, Cooperating valve ports in cylinder and relatively movable central member417/462Unidirectionally rotating cylinder
ExaminersPrimary: Bertsch, Richard A.
Assistant: Jalali, Laleh
Foreign Patent References
International ClassesF01B 001/06
Foreign Application Priority Data1990-11-23 FR
AbstractA 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.