Toyo Kogyo Co., Ltd.

Kazuma Shimizu

Haruhiko Satow

Yoshitaka Nomoto

Masato Yoshimura

Shiso Kariyama

Shisou Kariyama

Yoshimitsu Takeda

An apex seal for rotary piston engines which comprises an elongated sealing piece and an elongated support piece which are superposed throughout their lengths. A side piece is provided at one end of the superposed pieces and has an inclined inward surface which is engaged with a correspondingly inclined end surface of the sealing piece but spaced from a correspondingly inclined end surface of the support piece. A spring is provided for urging the support and side pieces toward the inner wall of the rotor housing.

Apex seal for rotary piston engines with separate sealing and support

Rotary piston engine has a rotor which is applied with coatings of a fluoride resin at each side surface in the vicinity of side seals so as to fill clearance between the rotor side surface and the adjacent inner surface of the side housing whereby an improved gas-tightness is obtained.

Gas seal means for rotary piston engines

Rotary piston engine having a substantially polygonal rotor provided at each apex portion with an apex seal and corner seals. The corner seal is so arranged that it is forced under the gas pressure introduced in a space behind it toward the side housing. A filler member comprised of a non-rigid material such as a heat resistant rubber or a suitable composite material is provided in a clearance between the corner seal and an adjacent end of the apex seal so as to prevent gas leakage through the clearance.

Growing community of inventors

Hiroshima, Japan

Kazuma Shimizu