Scroll member for a scroll type of fluid machinery and scroll ty

Details Scroll member for a scroll type of fluid machinery and scroll ty Scroll member for a scroll type of fluid machinery and scroll ty

1998-04-08

2000-12-12

Nguyen, Hoang

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F01C 102

Patent

active

06158990&

ABSTRACT:
In order to increase productivity of spiral machining, to provide a low-cost scroll member for a scroll type of fluid machinery, and to provide a scroll type of fluid machinery that does not generate a burr in a base plate surface at the time of finishing, a scroll member (39) has a spiral element (43) formed in a spiral shape around an axis and a base plate (41) provided in one piece in an end face of the spiral element (43) in an axial direction. In addition, the scroll member (39) compresses fluid with forming a fluid pocket between the spiral elements by performing swing motion that is prevented from relatively rotating to a counterpart of scroll member having a spiral element meshing with the spiral element (43) and a base plate facing to the base plate (41). A chamfered section (149) is formed in a bare surface on the base plate surface (141) on an extension line (89) of an inner wall surface's spiral end of this spiral element (43) wall surface so that a distance from the extension line of the spiral end toward the center may be within a range less than the thickness of a spiral element's wall of the counterpart of scroll member.

REFERENCES:
patent: 3802809 (1974-04-01), Vulliez
patent: 3884599 (1975-05-01), Young et al.
patent: 4303379 (1981-12-01), Hiraga et al.
patent: 4304535 (1981-12-01), Terauchi
patent: 4666380 (1987-05-01), Hirano et al.
patent: 4824345 (1989-04-01), Fukuhara et al.
patent: 5320505 (1994-06-01), Misiak et al.
patent: 5478220 (1995-12-01), Kamitsuma et al.
patent: 5730588 (1998-03-01), Terai et al.
patent: 5951270 (1999-09-01), DuMoulin et al.
European Search Report mailed Jun. 4, 1998.

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