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:
May. 22, 1990
Filed:
Oct. 05, 1988
Applicant:
Inventors:
Roy E Diehl, Northville, MI (US);
Alvin H Berger, Brownstone, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 74604 ;
Abstract
An automotive engine crankshaft has a pair of vibration balancing masses pivotally secured to and depending from a main bearing cap for oscillatory movements in response to being driven by contoured cam wheels on the cheeks of the crankshaft, the cam wheels engaging rollers or cam follower sliding shoes on a bell crank type balancing mass, the vertical movements of the balancing mass centers providing forces in direct opposition to the forces caused by the engine second order vertical shake unbalance, to cancel the same.