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:
Jun. 08, 1976
Filed:
Oct. 15, 1974
Jan Vlemmings, Hochdorf, DT;
Robert Bosch G.m.b.H., Stuttgart, DT;
Abstract
A gear type hydraulic pump or motor wherein the stubs of the gears are surrounded by annular bearing members which are non-rotatably mounted in the housing. The forces which the stubs tend to transmit to the respective bearing members are counteracted by hydrostatic pressure fields produced by pressurized fluid which is entrapped in plenum chambers defined and completely surrounded by rectangular frame-like gaskets which are recessed into the surfaces surrounding the bores of the bearing members and are spaced apart from the nearest end faces of the respective gears. The gaskets may bear directly against the peripheral surfaces of the stubs or against the peripheral surfaces of cylindrical sleeves which are received in the bores of the bearing members and only the outer end portions of which are a tight fit in the respective bearing members.