Fluid machine having two spiral working mechanisms with a steppe

Details Fluid machine having two spiral working mechanisms with a steppe Fluid machine having two spiral working mechanisms with a steppe

1996-09-09

1998-08-04

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 553, 418 554, 418 60, F01C 104, F01C 1100

Patent

active

057884706

ABSTRACT:
A fluid machine has-two working mechanisms. Each of the working mechanisms has a fixed spiral, a movable spiral, and a working chamber. The fixed spiral has an inner contact face that spirals from the periphery toward the center of the fixed spiral and has a stepped shape in section. The movable spiral has an outer contact face that spirals upwardly from the periphery toward the center of the movable spiral and has a stepped shape in section. The movable spiral orbits inside the fixed spiral when an eccentric shaft rotates. The working chamber is defined between the inner and outer contact faces. The height and width of the working chamber become smaller as the working chamber shifts from the periphery toward the center of the working mechanism according to the oscillation of the movable spiral.

REFERENCES:
patent: 4990071 (1991-02-01), Sugimoto
patent: 5304047 (1994-04-01), Shibamoto
patent: 5336068 (1994-08-01), Sekiya et al.

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