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

1996-11-29

1998-12-01

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 60, 418 94, 418101, F01C 104, F01C 1100, F01C 2106

Patent

active

058428437

ABSTRACT:
A scroll fluid machine includes stationary scrolls, with embedded wraps which are spiral in form, extending from central parts of scroll bodies toward the outer peripheries thereof, and a revolving scroll, with an embedded spiral wrap, engaging with the spiral wraps. The revolving scroll has a scroll body coupled to a drive shaft coupled to a drive at the central portion thereof. The drive shaft is cooled directly by a cooling structure 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: 5024589 (1991-06-01), Jetzer et al.
patent: 5346374 (1994-09-01), Guettinger
patent: 5417554 (1995-05-01), Kietzman et al.
patent: 5443374 (1995-08-01), Yoshii et al.
Abstract of Published Japanese Patent Application No. JP 59-155593, Sep. 1984.
Abstract of Published Japanese Patent Application No. JP 61-200391, Sep. 1986.
Abstract of Published Japanese Patent Application No. JP 03-145588, Jun. 1991.

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