Rotary expansible chamber devices – With secondary vane or abutment moving means
Patent
1987-09-14
1993-09-07
Vrablik, John J.
Rotary expansible chamber devices
With secondary vane or abutment moving means
418244, 418248, 418249, F01C 140, F04C 240
Patent
active
052422887
ABSTRACT:
An engine or pump is described which has a round cylinder in cross section, the surface of the cylinder being a round toroidal tube in the rotary direction. The cylinder is made of two equal parts, one part fixed and one part rotating with each part meeting on a flat surface at a right angle to the driveshaft. Force exerted axially against the rotating cylinder part by a spring diaphram seals the cylinder where the two parts meet on the flat surface. The spring diaphram is pre-loaded by a thrust bearing in a pre-loading disk to apply force to the rotating part of the cylinder. Within the cylinder are one or more round toroidal section pistons that are attached to the rotating part of the cylinder by piston pins. A hinged internal cylinder abutment is actuated by the piston as the piston passes through the abutment section. Working fluid to the cylinder is controlled by an internal valve actuated by a cam-disk on the driveshaft.
REFERENCES:
patent: 669502 (1901-03-01), Bonsteel
patent: 1122403 (1914-12-01), Lexa
patent: 1378897 (1921-05-01), Peterson
patent: 2097714 (1937-11-01), Ayre
patent: 4076471 (1978-02-01), McClure
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