Scroll type refrigerant compressor with means for preventing unc

Details Scroll type refrigerant compressor with means for preventing unc Scroll type refrigerant compressor with means for preventing unc

1993-11-16

1995-09-26

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 57, 418151, F04C 1804

Patent

active

054529956

ABSTRACT:
A scroll type refrigerant compressor having a stationary scroll unit including a spiral member, a movable scroll unit including an orbiting spiral member engaged with the stationary spiral member to define gas-pocket-like variable-volume compression chambers in which the refrigerant gas is compressed in response to a rotation of a drive shaft having an eccentrically arranged drive key member, a drive bushing member having an aperture formed therein in which the drive key of the drive shaft is inserted so as to cause an eccentric motion of the drive bushing member which is operatively engaged with the movable spiral member of the movable scroll unit to thereby drive an orbiting motion of the movable spiral member, and a mechanical space-control unit for suppressing an uncontrolled play of the drive bushing member to thereby move the movable scroll unit in a correct orbiting path with respect to the stationary scroll unit.

REFERENCES:
patent: 4466784 (1984-08-01), Hiraga
patent: 4580956 (1986-04-01), Takahashi et al.
patent: 4824346 (1989-04-01), Hiraga et al.
patent: 5201646 (1993-04-01), Dees et al.

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