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:
Sep. 07, 1976
Filed:
Aug. 14, 1972
Applicant:
Inventor:
Robert L Weber, Lacon, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ;
Abstract
A V-8 internal combustion engine has its two cylinder banks disposed at an included angle of 65.degree. and each adjacent pair of crankpins of a two-plane, counterweighted crankshaft displaced at an angle of 25.degree. with respect to each other. Sharp edges initially formed at diametrically opposed intersections of each pair of crankpins are ground-off to form an S-shaped blended surface area thereat for reducing stress concentrations.