The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 1984
Filed:
Jul. 15, 1981
Toyo Kogyo Co., Ltd., Hiroshima, JP;
Abstract
A two rotor type rotary piston engine including a casing comprised of a pair of rotor housings connected together with an intermediate housing interposed therebetween and side housings attached to the outer sides of the rotor housings to define rotor cavities. A substantially triangular rotor is disposed in each rotor cavity. The intake system includes a light load intake port formed in the intermediate housing so as to open to each rotor cavity, a medium load and heavy load intake ports formed in each side housing. The light load and medium load intake ports are formed so that they are opened to a working chamber after the chamber is disconnected from the exhaust port and closed substantially simultaneously. The heavy load intake port is associated with a control valve which is closed under light and medium load operations.