Scroll fluid machine having end plate with greater center thickn

Details Scroll fluid machine having end plate with greater center thickn Scroll fluid machine having end plate with greater center thickn

1996-08-15

1998-07-07

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418101, F01C 104, F01C 2106

Patent

active

057758883

ABSTRACT:
A scroll fluid machine includes a fixed scroll member having an end plate which is formed such that a central portion of the end plate which corresponds approximately to 1.5 to 2 turns of a wrap portion from its spiral starting end (innermost end) is a thick-walled portion having a relatively large plate thickness, and an outer peripheral portion of the end plate which lies radially outside the thick-walled portion is a thin-walled portion. The thickness of the thick-walled portion is set to be about 1.4 to 1.6 times the thickness of the thin-walled portion. By reducing thermal resistance at the thick-walled portion of the end plate, heat from compression chambers are conducted to radiating fins, thereby suppressing the transfer of the heat to the thin-walled portion.

REFERENCES:
patent: 4477238 (1984-10-01), Terauchi
patent: 5417554 (1995-05-01), Kietzman et al.
patent: 5496161 (1996-03-01), Machida et al.

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