Modular motor

Details Modular motor Modular motor

1992-09-10

1993-05-18

Bertsch, Richard A.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F03C 208, F04C 210

Patent

active

052115518

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.

REFERENCES:
patent: 3270681 (1966-09-01), Charlson
patent: 3431863 (1969-03-01), Waldorff
patent: 3758242 (1973-09-01), Ohrberg
patent: 3871798 (1975-03-01), Berlich
patent: 3895888 (1975-07-01), Roberts
patent: 3901630 (1975-08-01), Kilmer
patent: 3960470 (1976-06-01), Kinder
patent: 4232708 (1980-11-01), Miller
patent: 4457677 (1984-07-01), Todd
patent: 4569644 (1986-02-01), Swedborg
patent: 4631010 (1986-12-01), Petersen et al.

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