Scroll compressor with a two-piece idler shaft and two piece scr

Details Scroll compressor with a two-piece idler shaft and two piece scr Scroll compressor with a two-piece idler shaft and two piece scr

1998-09-28

2000-10-10

Denion, Thomas

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 552, 418 553, 418 554, 291564, F04C 1800

Patent

active

061295302

ABSTRACT:
A scroll compressor is provided with idler shafts and scroll assemblies, both of which are two-piece assemblies. The two pieces of the idler shaft are made independently of each other and each includes an axis of symmetry which facilitates forming, or partial forming, of the parts on a lathe. The two parts, each of which includes a shaft, are then joined together with the shafts offset from each other to form the proper eccentricity in the idler shaft. The scroll assemblies are made by first forming a base plate for the desired scroll and then forming an eccentric groove in the base plate. An involute, which is formed to correspond to the groove is inserted in the base plate groove. The involute has grooves on both of its end surfaces to allow the same involute to be used for both the fixed and orbiting scroll plate.

REFERENCES:
patent: 4436495 (1984-03-01), McCullough
patent: 4462771 (1984-07-01), Teegarden
patent: 4726100 (1988-02-01), Etemad et al.
patent: 4730375 (1988-03-01), Nakamura et al.
patent: 4875839 (1989-10-01), Sakata et al.
patent: 5044904 (1991-09-01), Richardson, Jr.
patent: 5051079 (1991-09-01), Richardson, Jr.
patent: 5466134 (1995-11-01), Shaffer et al.
patent: 5632612 (1997-05-01), Shaffer
patent: 5752816 (1998-05-01), Shaffer
patent: 5759020 (1998-06-01), Shaffer

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