Title:
SEALED TYPE SCROLL FLUID DEVICE
Document Type and Number:
Japanese Patent JP2548517
Kind Code:
B2
Abstract:
PURPOSE: To increase the rigidity and strength of a revolving bearing detention part of a revolving scroll with the main shaft and prevent seizure and gall by forming the detention part from an eccentric shaft part in eccentricity from the axis of the main shaft and a concave boss which is installed in the revolving scroll for accommodating the eccentric shaft part.
CONSTITUTION: In a sealed vessel 1, a compression element part and a motor part are accommodated while connected by a main shaft 7. The compression element part is so arranged that a stationary scroll 2 coupled with a frame 4 and a revolving scroll 3 (a, b) mesh with one another. The main shaft 7 provided in continuity to motor 11 is supported rotatably on the frame 4 by a bearing 8. The revolving bearing detention part 8a of the revolving scroll 3 with the main shaft 7 is composed of an eccentric shaft 7a in eccentricity from the axis of the main shaft 7 and a concave boss 3c which is furnished on the counter-lap side of a revolving scroll end plate for accommodating the eccentric shaft part 7a. The oil in the sealed vessel 1 is introduced to an oil pressure chamber 7c situated between the eccentric shaft part 7a and the boss 3c.
Inventors:
TOJO KENJI
IKEGAWA MASATO
SHIIBAYASHI MASAO
IKEGAWA MASATO
SHIIBAYASHI MASAO
Application Number:
JP2251594A
Publication Date:
October 30, 1996
Filing Date:
February 21, 1994
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F04C18/02; (IPC1-7): F04C18/02
Domestic Patent References:
| JPS547604A | ||||
| JPS51117304A | ||||
| JP47022034A | ||||
| JPS53119412A | ||||
| JPS5222208B2 | ||||
| JPS5182405A | ||||
| JPS5032512A | ||||
| JPS5546081A | ||||
| JPS5314403U | ||||
| JPS5247772U | ||||
| JP48010610A | ||||
| JPS5348208B2 |
Foreign References:
| US4065279A |
Attorney, Agent or Firm:
Honda Kodaira (1 person outside)