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.

Date of Patent:
May. 22, 2001

Filed:

May. 17, 1999
Applicant:
Inventors:

Masaki Tsunoda, Wako, JP;

Shigekazu Sakata, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 7/506 ;
U.S. Cl.
CPC ...
F02B 7/506 ;
Abstract

Integrally fastening a cylinder block,and a crankcase,together by dividing the cylinder block,and the crankcase,at a dividing surface,passing through the center of a crankshaft,vertically arranged and screwing a bolt,inserted from the crankcase,side in the cylinder block,. The bolt,fastening the crankcase,to the cylinder block,is prevented from interfering with a pair of left and right secondary balancer shafts,by supporting both the secondary balancer shafts by the cylinder block,, but not by the crankcase,to increase the degree of freedom of the layout of both the secondary balancer shafts


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