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:
Jul. 17, 2012
Filed:
Oct. 14, 2008
Applicants:
Ritsuharu Shimizu, Hiroshima, JP;
Shinya Ueki, Hiroshima, JP;
Inventors:
Ritsuharu Shimizu, Hiroshima, JP;
Shinya Ueki, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
F02B 53/00 (2006.01); F03C 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotary piston engine includes a generally triangular rotor, a pair of side housings, a rotor housing which is assembled with the rotor and the pair of side housings to define three working chambers, an intake port formed in at least one of the side housings, and an exhaust port formed in at least one of the side housings. The length of one side of the triangular face of the rotor is at least 2.4 times the breadth of the rotor.