Synchronous rotating type scroll fluid machine

Details Synchronous rotating type scroll fluid machine Synchronous rotating type scroll fluid machine

1992-03-30

1994-03-22

Vrablik, John J.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

417410D, 418 15, 418 553, 418 555, 418 57, 418188, F04B 3504, F04B 3906, F01C 104, F01C 2100

Patent

active

052958086

ABSTRACT:
A synchronous rotating type scroll fluid machine has a first scroll member driven by a shaft of a first motor and having an end plate and a scroll wrap protruding from a surface of the scroll end plate, and a second scroll member driven by a shaft of a second motor and having a scroll end plate and a scroll wrap protruding from a surface of the scroll end plate. The machine further has a mounting structure for mounting the scroll members such that the axes of the scroll members are offset from each other and that said scroll wraps of the scroll members mesh with each other. Thrust balancing arrangements are provided for attaining a balance between the thrusting forces acting on each said scroll member, both at the mounting structure and said scroll members. The thrust balancing arrangement includes through-bores formed in the respective motor shafts and serving as passage bores for discharging a compressed gas. This arrangement also provides cooling effect as the compressed working gas functions as a cooling medium and, in addition, serves to suppress distortion of the scroll end plate of each scroll member.

REFERENCES:
patent: 801182 (1905-10-01), Creux
patent: 4846639 (1989-07-01), Morishita et al.
patent: 5100307 (1992-03-01), Arita et al.

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