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:
Nov. 01, 1983
Filed:
Apr. 20, 1981
Applicant:
Inventors:
Yoshikazu Hayakawa, Yokosuka, JP;
Naoki Ogawa, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 384428 ;
Abstract
An internal combustion engine having a cylinder block, comprises a bearing support beam structure secured to the cylinder block and including a plurality of main bearing carrying sections which are made of aluminum allow and incorporate with the corresponding sections of the cylinder block to rotatably support a crankshaft, and a steel pipe securely disposed within and in a manner to pierce the main bearing carrying sections, thereby lightening the weight of the entire engine, increasing the flexural rigidity of the cylinder block.