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:
Aug. 23, 2005
Filed:
May. 15, 2001
Applicant:
Rudolf Schaeffer, Marktheidenfeld, DE;
Inventor:
Rudolf Schaeffer, Marktheidenfeld, DE;
Assignee:
Bosch Rexroth AG, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D031/02 ;
U.S. Cl.
CPC ...
Abstract
A free-piston engine has a stepped piston having a larger end face thereof guided in the compression cylinder, and a smaller end face in the work cylinder. Both the work cylinder and the compression cylinder are connected with a common high-pressure accumulator for initiating the compression stroke or for charging during the expansion stroke.