Rotary device and method of assembly

Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion

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Details

418131, F01C 1908

Patent

active

053801784

ABSTRACT:
A pump or motor device (22) includes a housing (24) which encloses a rotor (30) disposed within a cam ring (46). A bottom or wear end plate (100) and a top or pressure end plate (156) cooperate with the cam ring (46) and vanes (42) connected with the rotor (30) to form working chambers. The rotary device (22) may be assembled for either a clockwise or counterclockwise rotation. When the rotary device (22) is to be assembled for clockwise rotation, a first set of end plates (100 and 156) is used. When the rotary device (22) is to be assembled for counterclockwise rotation, a second set of end plates (130 and 204) is used. The second set of end plates (130 and 204) includes end plates which are mirror images of the corresponding end plates (100 and 156) in the first set of end plates. During assembly of the rotary device (22), alignment members (282 and 284) cooperate with alignment openings in the end plates (100 and 156 or 130 and 204) and the cam ring (46) to accurately align the end plates and cam ring relative to the housing (24). Interference between a shaft opening (110 or 140) in the bottom end plate (100 or 130) and a drive shaft (32) for the rotary device (22) blocks assembly with the bottom end plate misaligned. Interference between the housing (24) and the top end plate (156 or 204) blocks assembly of the rotary device (22) with the top end plate misaligned.

REFERENCES:
patent: 2694367 (1954-11-01), Seavey
patent: 2966118 (1960-12-01), McAlvay
patent: 3632238 (1972-01-01), Searle
patent: 3787151 (1974-01-01), Carlson
patent: 4505655 (1985-03-01), Honaga et al.

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