Scroll compressor having wrap elements with rigidified inner end

Details Scroll compressor having wrap elements with rigidified inner end Scroll compressor having wrap elements with rigidified inner end

1995-05-24

1996-09-24

Freay, Charles

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418150, F01C 104

Patent

active

055585108

ABSTRACT:
A scroll compressor includes a stationary scroll and an orbiting scroll having respective wrap elements in engagement with each other. An inner end portion of an internal wall of one of the wrap elements is partially shaped to represent a curve identical to or approximate to an envelope curve which is obtained through circular translation of a circular arc connected with an external wall of the other wrap element. The radius of the circular arc is so chosen as to increase the shortest distance a.sub.x from each of points on the curve to the external wall of the one wrap element towards the inner end of the one wrap element.

REFERENCES:
patent: 4547137 (1985-10-01), Terauchi et al.
patent: 4558997 (1985-12-01), Sakata et al.
patent: 4678416 (1987-07-01), Hirano et al.

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