Rotary type fluid machine

Details Rotary type fluid machine Rotary type fluid machine

1985-05-24

1987-07-07

Garrett, Robert E.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418150, F01C 104

Patent

active

046784160

ABSTRACT:
A rotary fluid machine of the type including two spiral elements, or a stationary spiral element and a revolving spiral element having identical configurations and disposed 180 degrees apart from each other in mutually nested relationship. The revolving spiral element is adapted to revolve in solar motion relationship with respect to the stationary spiral element with a radius of revolutionary motion .rho.. Both spiral elements are respectively defined in profile with a radially outer curve segment consisting of an involute curve, a radially inner curve segment consisting of another involute curve in an arc having a radius R, and an arc of a radius r connecting smoothly the radially outer curve segment and the arc having the radius R, whereby the radially inner leading end of the spiral elements incorporated may well be protected from possible damages as encountered during the operation of the machine, and the height of spiral elements may readily be increased substantially without making greater the overall outer diameter of the spiral elements, to give the machine a larger capacity.

REFERENCES:
patent: 4441870 (1984-04-01), Ikegawa et al.
patent: 4558997 (1985-12-01), Sakata et al.

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