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. 19, 2008
Filed:
Jul. 30, 2004
Applicants:
Franz Arbogast, Heidenheim, DE;
Peter Peiz, Heidenheim, DE;
Inventors:
Franz Arbogast, Heidenheim, DE;
Peter Peiz, Heidenheim, DE;
Assignee:
Voith Turbo GmbH & Co. KG, Heidenheim, DE;
Primary Examiner:
Int. Cl.
CPC ...
F01C 1/10 (2006.01); F01C 21/00 (2006.01); F04B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic pump is provided that reduces or eliminates unwanted noise, local pressure waves, pressure pulsations or cavitation and the like through use of pressure and suction chambers that are in substantial fluid isolation except for a backflow connection with a predetermined flow cross section to the suction chamber.