Internal gear machine with reinforced housing

Details Internal gear machine with reinforced housing Internal gear machine with reinforced housing

1987-09-24

1989-04-25

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F03C 208, F04C 2113

Patent

active

048243477

ABSTRACT:
A reinforced internal gear machine of the type having variable displacement fluid chambers formed between an orbiting outer gear and a rotating inner gear. The orbiting outer gear is retained in its orbiting motion by a plurality of roller dowells closely fitting in a locating ring disposed radially outside the outer gear and extending therefrom to be received in arcuate recesses on the radial outside of the outer gear as it orbits. The locating ring is connected to an end piece of internal gear machine along a plane of torsional stress and this connection is reinforced by this invention. The reinforcement is made by the end piece having recesses disposed coaxially with the roller dowells and the roller dowells extending closely within these recesses from the cover. The roller dowells thus extend across the plane of torsional stress for reinforcement.

REFERENCES:
patent: 3846051 (1974-11-01), McDermott
patent: 3905727 (1975-09-01), Kilmer
patent: 4025243 (1977-05-01), Stephens
patent: 4411607 (1983-10-01), Wusthof et al.

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