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:
Feb. 13, 1979
Filed:
Feb. 13, 1976
Applicant:
Inventors:
Werner Steidle, Bad Friedrichshall II, DE;
Wilfried Sander, Neckarsulm, DE;
Ernst Deubelbeiss, Neckarsulm, DE;
Assignee:
Karl Schmidt GmbH, Neckarsulm, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 123 / ; 92213 ; 92223 ;
Abstract
A light alloy piston for diesel engines includes a piston head coated with a hard annodized layer having a combustion chamber recess and/or a fuel-guiding channel provided adjacent to the edge of the combustion chamber recess and/or valve pockets. The piston head is free of a hard anodized layer in those regions which are highly stressed by gas and mass forces. Preferably those regions of the piston head adjacent to edge portions of the combustion chamber recess lying in the direction of the piston pin are free of a hard anodized layer.