Rotary expander fluid pressure device

Details Rotary expander fluid pressure device Rotary expander fluid pressure device

1982-09-27

1984-07-31

Cline, William R.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F04C 200

Patent

active

044627742

ABSTRACT:
The rotary expander device combines a square working chamber with a three lobed sext-arcuate rotary working member which defines four expansible and contractible spandrel chambers in the corners of the square as the three lobed rotor revolves and its external surfaces make wiping contact with the interior surfaces of the square working chamber. Fluid flow from exterior intake and exhaust ports to four ports in the spandrel corners is controlled by a rotary valve coupled to the drive shaft, which is coupled to the center of the rotor. The ports and valving provide sequential spandrel chamber expansion and contraction with intake and exhaust of fluid as the sext-arcuate rotor revolves with its center describing a retrograde circular orbit around the center of the square chamber. The device may serve as either a motor when fluid driven or a pump when shaft driven.

REFERENCES:
patent: 658556 (1900-09-01), Pitt
patent: 2796029 (1957-06-01), Bourke
patent: 3441007 (1969-04-01), Kwaak
patent: 3450107 (1969-06-01), Radziwill et al.
patent: 3819307 (1974-06-01), Uppal

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