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:
Jun. 15, 1993

Filed:

Sep. 27, 1991
Applicant:
Inventors:

Shinichi Nakano, Saitama, JP;

Hiroyuki Kawakubo, Saitama, JP;

Toshio Shimada, Saitama, JP;

Hiroshi Wakoh, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
74591 ; 74 44 ; 74331 ; 74413 ; 74603 ; 1231921 ; 1231922 ;
Abstract

This invention is concerned with an improved system of dynamic balancing of the primary and secondary vibrations associated with combustion and inertial momentum effects, in particular, in single cylinder engines. By means of the primary and secondary balancing shafts, the invention achieves maximum balancing effects in small spaces, by combining the power transmission and dynamic balancing functions of the shafts; by mechanical arrangement of the primary and secondary balancing shafts in the vicinity of and parallel with the crank shaft; and by a judicious choice of the inter-shaft distances to permit placing the largest possible momentum balancing weights to the balancing sections.


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