Title:
ROTARY PISTON MACHINE
Document Type and Number:
Japanese Patent JPS5452214
Kind Code:
A
Abstract:
The seal grid system for a rotary piston mechanism of the Wankel-type comprises apex seal blades, a conventional side seal assembly consisting of side seal strips and button or seal pins carried on one side face of the rotary piston and a sealing surface portion or rib projecting axially from the other side face of the rotary piston and extending endlessly around the rotor face. The seal surface portion is spaced radially inwardly from the peripheral surfaces of the rotary piston to expose a portion of the other side face to the pressurized gases in the working chambers so that the axial forces on each of the side faces of the rotary piston are at least in part counter-balanced.
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Inventors:
DANKUUARUTO AIERUMAN
Application Number:
JP10149578A
Publication Date:
April 24, 1979
Filing Date:
August 22, 1978
Export Citation:
Assignee:
WANKEL GMBH
International Classes:
F01C1/22; F01C21/08; F02B55/02; F04C9/00; F04C18/22; F02B53/00; (IPC1-7): F01C21/08; F02B55/02; F04C17/02