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:
Apr. 20, 1993
Filed:
Oct. 29, 1991
Winfried Distelrath, Stuttgart, DE;
Ing. h. c. F. Porsche AG, , DE;
Abstract
A crankshaft for an internal-combustion engine has crankshaft webs provided with recesses. The recesses are molded into the crankshaft webs in each case symmetrically with respect to a vertical longitudinal center plane oppositely within a clear outer contour of the crankshaft webs. In the area of the recesses, the sections are constructed as a U-shaped profile with side legs. Between the recesses of the crankshaft webs arranged above one another, a reinforcing rib is arranged in the overlapping area of the crank pin and the journal. As a result of the recesses in each crankshaft web which are arranged in a targeted manner, a reduction in weight is made possible with effective mass compensation. The recesses are arranged above one another such that in the endangered area of each crankshaft web, a cross-section is built up that is as large as possible and can absorb the flexural and torsional load in a defined manner, despite the maximally large recesses.