Gm Global Technolgoy Operations, Inc.

Jack A Hart

James H Wolgemuth

A rotary combustion engine having a planetary rotor and side intake ports is provided with an apex seal arrangement comprising two side-by-side seal members providing spaced sealing lines of contact at each rotor apex and wherein communicating grooves in the ends of the two apex seal members and existing corner seals connect the space between the apex seal members to the existing spaces between the side seals and oil seals on the rotor sides which periodically communicate with the side intake ports.

Rotary combustion engine apex seal arrangement

A multi-apex rotary combustion engine rotor has simplified side face circular compression seals mounted in circular grooves passing across the face of corner button seals. The button seals are of a substantially enlarged diameter permitting machining of the circular seal grooves in the rotor side face.

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Mount Clemens, MI, United States of America

Jack A Hart