Title:
SCROLL TYPE FLUID MACHINE
Document Type and Number:
Japanese Patent JPS59119091
Kind Code:
A
Abstract:
PURPOSE: To prevent compression of oil, by releasing oil existing at the outer peripheral portion of the end plate of a revolving scroll into a back-pressure chamber or a recess formed in a frame.
CONSTITUTION: A groove 7a is formed circumferentially in the surface of a recess 4a of a frame 4 opposing the end plate 1a of a revolving scroll 1. Through provision of such a groove 7a, oil can be released via the groove 7a even in case that the end plate 1a of the revolving scroll 1 comes close to the frame 4, so that compression of oil is prevented and the driving force can be decreased.
Inventors:
MURAYAMA AKIRA
KUNO HIROAKI
UCHIKAWA NAOSHI
TAMURA TAKAHIRO
MIZUNO TAKAO
SHIIBAYASHI MASAO
KUNO HIROAKI
UCHIKAWA NAOSHI
TAMURA TAKAHIRO
MIZUNO TAKAO
SHIIBAYASHI MASAO
Application Number:
JP22607182A
Publication Date:
July 10, 1984
Filing Date:
December 24, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F04C18/02; F01C1/02; F04C23/00; (IPC1-7): F01C1/02; F04C18/02; F04C29/02; F04C29/10
Domestic Patent References:
| JPS6414436A | 1989-01-18 | |||
| JPS59110892A | 1984-06-26 |
Attorney, Agent or Firm:
Honda Kodaira (3 outside)