Scroll machine with relieved flank surface

Details Scroll machine with relieved flank surface Scroll machine with relieved flank surface

1989-04-12

1990-05-22

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F01C 104

Patent

active

049273418

ABSTRACT:
A scroll compressor is disclosed in which either or both of the spiral wraps of the scroll members are reduced in thickness (i.e., cut away) adjacent to the inlet port defining the starting point the vanes would theoretically sealingly engage one another to initiate compression. Additionally, either or both of the spiral wraps of the scroll members may be reduced in thickness (i.e. cut away) adjacent to the discharge port where the vanes separate and the compression chambers defined thereby communicate with the discharge port. Provision of a smooth transition at the points of engagement cooperates to reduce noise and wear during operation of the compressor.

REFERENCES:
patent: 3473728 (1969-10-01), Vulliez
patent: 3874827 (1975-04-01), Young
patent: 4466784 (1984-08-01), Hiraga
patent: 4490099 (1984-12-01), Terauchi et al.
patent: 4666380 (1987-05-01), Hirano et al.
patent: 4678415 (1987-07-01), Hirano et al.
patent: 4678416 (1987-07-01), Hirano et al.

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