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. 14, 2006
Filed:
Jun. 27, 2002
Hiroyasu Ninomiya, Fujisawa, JP;
Susumu Tamura, Fujisawa, JP;
Haruyo Kimura, Fujisawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
In order to suppress axial vibration in a crank system, prevent knocking sound, and reduce vibration noise, a flywheel () which is mounted onto the crankshaft of an engine (E) is made into a spoked form having an uneven number of spokes (). This prevents the symmetrical bending that occurs with an even number of spokes, and divides the vibration mode in the peripheral direction. It is preferable that the number of spokes be seven. The flywheel () is mounted such that, when the pistons of predetermined cylinders #and #are at top dead center at the start of the expansion stroke, one of the spokes () is positioned on the opposing side to these predetermined cylinders, which border the center of the crank (C).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile