Closed type rotary compressor with rotating member to prevent ba

Details Closed type rotary compressor with rotating member to prevent ba Closed type rotary compressor with rotating member to prevent ba

1988-03-09

1989-05-02

Croyle, Carlton R.

Rotary expansible chamber devices

Working member has planetary or planetating movement

With relatively movable partition member

418270, F04C 18356, F04C 2908

Patent

active

048264091

ABSTRACT:
A closed type rotary compressor comprises: a closed housing, a driving electric motor housed in the housing and having a rotor rotating together with a rotary shaft, an upper bearing wall and a lower bearing wall housed in the housing for supporting the respective ends of the rotary shaft, a cylinder fixed between the upper and lower bearing walls and having a compression chamber therein, a rolling piston arranged in the compression chamber and eccentrically rotating together with the rotary shaft, and a rotating member arranged between the rotor and the upper bearing wall and rotating together with the rotor, wherein the cylinder is provided with an intake passage for feeding a refrigerant gas into the compression chamber, and a valve chamber for discharging the refrigerant gas through a discharge valve, the valve communicating a discharge passage formed in the upper bearing wall, and wherein the rotor is provided with a wider portion for covering an opening of the passage in the upper bearing wall and a narrower portion for exposing the opening, the mounting angle of the rotating member to the rotor and the eccentricity of the rolling piston to the rotary shaft are determined so that the wider portion keeps covering the opening until the discharge valve starts opening.

REFERENCES:
patent: 4427351 (1984-01-01), Sano
patent: 4580956 (1986-04-01), Takahashi et al.
patent: 4628963 (1986-12-01), Ishijima et al.
Keiju Sakaino et al, Some Approaches Towards a High Efficient Rotary Compressor, pp. 315-322.

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