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. 07, 1976
Filed:
Mar. 18, 1975
Paul Bosch, Ludwigsburg, DT;
Robert Bosch G.m.b.H., Stuttgart, DT;
Abstract
A gear pump having a drive gear provided with trunions mounted for rotation in the housing of the pump and a driven gear meshing with the drive gear and guided in the housing only on side faces and a portion of the inner peripheral surface of the housing and pressed by fluid pressure against the driven gear. A first sealing member at the outlet of the housing presses the driven gear against a sealing zone of the housing adjacent the inlet thereof and a second sealing member subjected to fluid pressure presses the driven gear against the drive gear. A low pressure zone is arranged at the inner peripheral surface of the housing between the two sealing members, whereas a high pressure zone is arranged between the second sealing member and the sealing zone.