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. 14, 1992
Filed:
Mar. 29, 1991
Seigo Takeno, Hiroshima, JP;
Hiroshi Abe, Hiroshima, JP;
Tsuyoshi Kojima, Hiroshima, JP;
Yasuo Fujitsuku, Hiroshima, JP;
Ken Ohtsuki, Hiroshima, JP;
Masayuki Murata, Hiroshima, JP;
Yasuhiro Sudo, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An engine has a crankshaft and a plurality of cylinders arranged in a row in a direction parallel to the crankshaft. Combustion in the cylinder adjacent to each end portion of the crankshaft to suppress bending strain of the crankshaft at said one end portion. The vibration control conditions of controlling combustion in the cylinders adjacent to the respective end portions of the crankshaft are set on the basis of properties of vibration of the engine and resonant frequencies at the respective end portions of the crankshaft and the conditions of combustion in the respective cylinders are controlled on the basis of the vibration control conditions set for the respective cylinders.