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, 1988
Filed:
Dec. 09, 1987
Alvin H Berger, Brownstown, MI (US);
Roy E Diehl, Northville, MI (US);
Gordon W Ellis, Westland, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An automotive engine crankshaft has a vibration balancing mass suspended from a main bearing cap on rods or bolts for an oscillatory radial movement in response to reciprocation of the mass by contoured cam wheels on the cheeks of the crankshaft, the cam wheels engaging rollers or cam follower wheels on a shaft freely rotatable in the balancing mass, the mass being restricted to a translational movement in a radial direction only, the mounting of the mass including a pivot/bushing that restricts the movement to the one translational direction only while at the same time permitting a slight rotational or pivotal movement of the mass about three axes to correct for any slight misalignment of the axis of the mass with respect to the axis of the crankshaft.