Rotary expansible chamber devices – Nutating working member – With mechanical sealing
Patent
1982-01-15
1984-04-10
Vrablik, John J.
Rotary expansible chamber devices
Nutating working member
With mechanical sealing
418 53, F01C 100, F01C 1900
Patent
active
044418698
ABSTRACT:
The power conversion machine has a piston which is adapted to effect a combined turning and rocking movement internally in a double-curved space. The piston is in drive connection with a rotary shaft via an eccentric disc which is obliquely disposed on the center axis of the rotary shaft. The center axis of the rotary shaft and the center axis of the eccentric disc cross each other in the center of the double-curved space. The double-curved space in defined within a ball shell and is divided into two opposing substantially ball-shaped spaces by means of a stationarily secured circular partition plate. The piston operates simultaneously in the two semi-spherical spaces, the piston passing through the partition plate via a diametrically extending slot. The piston comprises a disc-shaped main portion, and two oppositely directed roller portions which are received in respective semi-spherical spaces. The roller portions are adapted to roll against their respective side of the partition plate, which the main portion is adapted to move with a combined turning and rocking movement in the slot of the partition plate.
REFERENCES:
patent: 548584 (1895-10-01), Nash
patent: 2992635 (1961-07-01), Nasvytis
patent: 3570246 (1971-03-01), Briggs
Larsen Thor
Samdal Terje
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