Compressor having capacity-controlling mechanism with abrasion-f

Details Compressor having capacity-controlling mechanism with abrasion-f Compressor having capacity-controlling mechanism with abrasion-f

1998-11-12

2000-04-18

Solis, Erick R.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

F04B 5312

Patent

active

060507845

ABSTRACT:
A compressor having a capacity-controlling mechanism is provided, by which the inner-peripheral surface of a blind opening provided in a piston is subjected to abrasion due to sliding and rotating motions of a coil spring in the piston. In the capacity-controlling mechanism, the coil spring is covered by a cover made of abrasion resistant material and the covered coil spring is arranged in the blind opening, or a head of the coil spring is engaged to an inner surface of the blind opening.

REFERENCES:
patent: 4558993 (1985-12-01), Hori et al.
patent: 5222576 (1993-06-01), Meuer et al.
patent: 5236316 (1993-08-01), Iio
patent: 5513960 (1996-05-01), Uemoto
patent: 5639225 (1997-06-01), Matsuda et al.
patent: 5810565 (1998-09-01), Eppli
patent: 5919033 (1999-07-01), Singleterry et al.
patent: 5993171 (1999-11-01), Higashiyama
patent: 5993177 (1999-11-01), Terauchi et al.

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