Scroll type compressor enabling a soft start with a simple struc

Details Scroll type compressor enabling a soft start with a simple struc Scroll type compressor enabling a soft start with a simple struc

1998-08-27

2000-10-17

Yuen, Henry C.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417308, F04B 4900

Patent

active

061321796

ABSTRACT:
A compressor has a compressor housing (10) which includes therein a fixed scroll (25) having a fixed plate member (51) and a fixed spiral member (52) provided on the fixed plate member, and a movable scroll (26) having a movable plate member (61) and a movable spiral member (62) provided on the movable plate member. The fixed plate member is provided with a plurality of bypass holes (51a, 51b) for allowing gas introduced into fluid pockets defined between the fixed and movable spiral members to escape at different positions. The fixed plate member is further provided with a plurality of valve mechanisms each corresponding to one of the plurality of bypass holes for opening or closing the corresponding bypass hole. Operating pressures of the valve mechanisms are set different from each other.

REFERENCES:
patent: 4940395 (1990-07-01), Yamamoto
patent: 5049044 (1991-09-01), Hirano
patent: 5074761 (1991-12-01), Hirooka et al.
patent: 5639225 (1997-06-01), Matsuda et al.

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