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:
Dec. 14, 2004
Filed:
Feb. 25, 2003
Applicant:
Inventor:
Dieter Messmer, Remseck, DE;
Assignee:
Mahle GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 3/110 ;
U.S. Cl.
CPC ...
F01B 3/110 ;
Abstract
The invention relates to a built-up piston, comprising central screwing and a central cooling chamber. The aim of the invention is to reduce the flow resistance in the oil delivery area. To this end, means for transferring oil from the piston rod to the central cooling chamber are provided in the area of the screw head of the central screw connection.