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. 26, 1997
Filed:
Apr. 15, 1996
Applicant:
Inventors:
Hans Merkle, Stuttgart, DE;
Ralf Brunst, Ditzingen, DE;
Assignee:
Mercedes-Benz AG, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04C / ; F04C / ;
U.S. Cl.
CPC ...
417300 ; 417310 ; 418 15 ; 418170 ;
Abstract
The invention relates to a gear pump with two delivery gears meshing with one another, said gears cooperating in the rotation direction in front of or behind a plane containing the gear axes with a pressure and/or suction line. According to the invention, excess delivered pumping medium is introduced through a separate line behind the connection of the suction line in the circumferential direction of the gears, into the tooth spaces of the delivery gears in order to prevent any cavitation that might occur.