Hermetic scroll fluid discharge apparatus with pressurized fluid

Details Hermetic scroll fluid discharge apparatus with pressurized fluid Hermetic scroll fluid discharge apparatus with pressurized fluid

1979-11-27

1982-11-02

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 57, F04C 1802, F04C 2700

Patent

active

043571328

ABSTRACT:
A fixed scroll and an orbiting scroll each having an end plate and a wrap perpendicular to the end plate and having a mirror-like surface at the forward end are brought into intimate contact with each other such that the mirror-like surface of the wrap and the end plate of one scroll member are brought into sliding contact with the end plate and the mirror-like surface of the wrap of the other scroll member, respectively, to define fluid pockets between the two scroll members. The orbiting scroll is driven by a motor to move in orbiting movement relative to the fixed scroll to compress the fluid in the fluid pockets by gradually reducing the volume of the fluid pockets. A portion of the fluid in the fluid pockets is introduced into a hermetic container for the apparatus through communication ducts each formed on one side of the wrap of the orbiting scroll to increase the internal pressure of the hermetic container, to thereby force the orbiting scroll against the fixed scroll by the increased internal pressure of the hermetic container to provide airtight seal to the fixed and orbiting scrolls.

REFERENCES:
patent: 4192152 (1980-03-01), Armstrong et al.

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