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:
May. 17, 2005
Filed:
Jun. 16, 2001
Applicants:
Ulrich Bischofberger, Esslingen, DE;
Joachim Schulz, Stuttgart, DE;
Inventors:
Ulrich Bischofberger, Esslingen, DE;
Joachim Schulz, Stuttgart, DE;
Assignee:
Mahle GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F003/20 ;
U.S. Cl.
CPC ...
Abstract
In a cooling channel piston for a diesel engine with direct injection, a reduction in the compression height is achieved while keeping the output the same or increasing it. The piston consists of at least two parts soldered to one another, one of which is a piston base body forged from steel, having a shaft, hubs, and a ring part, and second part of which, consisting of steel or a nickel-based material, comprises a combustion trough and at least a part of the piston head. The piston base body and the second part together from a cooling channel that can be filled with oil.