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:
Jul. 26, 1977
Filed:
Apr. 10, 1975
Applicant:
Inventor:
Wilhelm Dworak, Stuttgart, DT;
Assignee:
Robert Bosch G.m.b.H., Stuttgart, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F03C / ; F01C / ;
U.S. Cl.
CPC ...
418102 ; 418131 ; 418206 ;
Abstract
A gear machine, such as a gear pump or gear motor, has a housing in a chamber of which there are journalled two gears which mesh with one another. The shafts of the gears are journalled for rotation in bearing sleeves. The housing has an intake for fluid at low pressure and an outlet for fluid at high pressure. The gaps between the teeth of the gears which receive fluid at low pressure communicate with the intake exclusively by way of passages which extend in part along the sleeves and shafts, so that the entire quantity of incoming fluid is compelled to travel in these passages and to cool and lubricate the sleeves and shafts.