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:
May. 18, 1993
Filed:
Sep. 10, 1992
Sohan L Uppal, Bloomington, MN (US);
Gary Kassen, Chanhassen, MN (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A modular motor assembly (11) is provided for use with a forward bearing package (13), the assembly including an endcap (15), a valve plate (17), a gerotor gear set (19), and a flange member (21), all of which are held together by a plurality of bolts (23). The bolts are located radially inward of O-ring seals (81,83,85), such that the bolts (23) comprise 'wet bolts'. Any leakage or weepage past the heads (27) of the bolts (23) flows into a sealed cavity (79) defined by the forward bearing package (13). The modular arrangement permits service and repair of the forward package without disassembly of the modular motor, and the smaller bolt circle diameter of the bolts (23) results in greater stiffness of the endcap (15) and flange member (21), thereby reducing deflection of those members, and increasing volumetric efficiency of the modular motor.