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:
Jan. 27, 1987
Filed:
Feb. 13, 1986
Emil Ripberger, Remseck, DE;
Gotthard Stuska, Fellbach, DE;
Mahle GmbH, , DE;
Abstract
In a light plunger piston for internal combustion engines, in order further to save weight and to achieve an elastic running behaviour, the piston skirt is reduced to three relatively narrow guide plates. The guide plates are attached through longitudinal ribs to gudgeon pin bushes suspended freely from the piston crown. On the thrust side of the piston there are two of the three guide plates which extend, seen from a 45 degrees diagonal plane between gudgeon pin axial plane and connecting rod oscillation plane, through about 15-25 degrees to each of the two sides. On the counter-thrust side only one pressure plate is provided which extends circumferentially over about 50 degrees. There is preferably no direct connection between the guide plates and the lowermost ring land.