Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1994-07-19
1995-05-23
Bertsch, Richard A.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418101, F04C 104
Patent
active
054175542
ABSTRACT:
An apparatus provides air cooling for a scroll compressor having a fixed scroll and an orbiting scroll. A plurality of fins are fixedly attached on a back surface portion of the fixed scroll. A cover assembly is disposed on the fins of the fixed scroll. The cover assembly and the fins of the fixed scroll form air passageways between the plurality of fins. A plurality of arcuately shaped fins are fixedly attached on a back surface portion of the orbiting scroll. A cover assembly is disposed on the fins of the orbiting scroll. The cover assembly and the fins of the orbiting scroll form air passageways between the plurality of fins. A shroud assembly surrounds the fixed and orbiting scrolls. The shroud assembly defines an interior portion around the fixed and orbiting scrolls, an intake aperture and a plurality of exhaust apertures. The shroud assembly has an exterior surface portion having a plurality of involutes formed thereon. The involutes define a plurality of air passageways which communicate with the interior portion of the shroud assembly. A fan draws a continuous volume of cooling air through the intake aperture, and accelerates the continuous volume of cooling air through the passageways defined by the involutes.
REFERENCES:
patent: 2103632 (1937-12-01), Nichols
patent: 3134369 (1964-05-01), Schlor
patent: 3180569 (1965-04-01), Bielefeld
patent: 3196850 (1965-07-01), Jones
patent: 3302623 (1967-02-01), Zimmermann
patent: 3845747 (1974-11-01), Donohue
patent: 5217360 (1993-06-01), Kawahara et al.
patent: 5346374 (1994-09-01), Guttinger
Kietzman Terry L.
Wolverton Steven R.
Bertsch Richard A.
Freay Charles G.
Genco, Jr. Victor M.
Ingersoll-Rand Company
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