Scroll compressor with relief port for reduction of vibration an

Details Scroll compressor with relief port for reduction of vibration an Scroll compressor with relief port for reduction of vibration an

1993-03-11

1994-08-23

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F04C 1804

Patent

active

053402928

ABSTRACT:
A scroll compressor (10) comprising a stationary scroll member (12) including an end plate (14) and a stationary involute wrap (16) extending from the end plate (14), and a discharge port (18) defined within the end plate (14). The scroll compressor (10) has an orbiting scroll member (20) including an orbiting involute wrap (16) which is movable in cooperative relationship with the stationary involute wrap scroll (12) so that a pair of sealed pockets (26, 28) is formed therebetween, the volume of the sealed pockets (26, 28) being reduced as orbital motion progresses. A relief port (32) extends through the end plate (14), in communication with one of the sealed pockets (26, 28) and a suction chamber so that at any given point of orbital motion, there is a pressure imbalance between pockets in the pair of sealed pockets (26, 28), and a consequent diminution in noise and vibration of the scroll compressor (10).

REFERENCES:
patent: 4365941 (1982-12-01), Tojo et al.
patent: 4432708 (1984-02-01), Hiraga et al.
patent: 4545747 (1985-10-01), Tamura et al.
patent: 4626179 (1986-12-01), Terauchi
patent: 4645437 (1987-02-01), Sakashita et al.
patent: 4696627 (1987-09-01), Asano et al.
patent: 4993928 (1991-02-01), Fraser, Jr.
patent: 5055012 (1991-10-01), Sakashita et al.
patent: 5256044 (1993-10-01), Nieter et al.

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