Scroll fluid machine having a cooling passage inside the drive s

Details Scroll fluid machine having a cooling passage inside the drive s Scroll fluid machine having a cooling passage inside the drive s

1998-09-28

2000-08-29

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 552, 418 60, 418 94, 418101, F01C 104, F01C 2106

Patent

active

061098973

ABSTRACT:
A scroll fluid machine is disclosed, which comprises a stationary scroll with an embedded wrap which is spiral in form, extending from a central part of a scroll body toward the outer periphery thereof, and a revolving scroll with an embedded spiral wrap engaging with said spiral wrap, the said revolving scroll having a scroll body coupled to a drive shaft 11A coupled to a drive at the central portion thereof. The drive shaft 11A is cooled directly by cooing means provided inside it. The scroll body of the revolving scroll has a central part coupled to a drive. Heat generated in a process, in which fluid sucked from the scroll edge is led to the central part while being progressively compressed, can be removed at the central part which is elevated to a highest temperature, thus permitting efficient cooling of bearings and seal members near the revolving scroll central part and the drive shaft.

REFERENCES:
patent: 3842596 (1974-10-01), Gray
patent: 4014631 (1977-03-01), Goloff
patent: 4473343 (1984-09-01), Hazaki et al.
patent: 5024589 (1991-06-01), Jetzer et al.
patent: 5101888 (1992-04-01), Sprouse et al.
patent: 5346374 (1994-09-01), Guttinger
patent: 5417554 (1995-05-01), Kietzman et al.

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