Rotary expansible chamber devices – Collapsible progressively deformed working chamber wall
Patent
1980-11-12
1983-07-05
Vrablik, John J.
Rotary expansible chamber devices
Collapsible progressively deformed working chamber wall
418153, 417479, 13762516, F01C 500, F01C 2112, F04B 4312, F16K 326
Patent
active
043915728
ABSTRACT:
A pump functioning as a vacuum pump or a pressure pump employing the angular position belt valve is disclosed. Said angular position belt valve comprises a plurality of axial holes disposed within a cylindrical pulley, each of which axial holes has one or more openings to the cylindrical surface of said pulley, which is wrapped by a belt over a predetermined wrap angle. When said pulley is rotated, said holes remain closed by the belt as long as those holes are within the wrap angle. When said holes are rotated out of the wrap angle, those holes become open instantly until they are rotated back into the wrap angle. Said angular position belt valve becomes an important part of a pump when each of said axial holes is connected to each of a plurality of expandingcontracting chambers disposed around the same axis of the rotation as that of the angular position belt valve wherein the wrap angle is set in such a way that a first angular position valve allows the pumped medium to enter the expanding chambers while a second angular position valve allows the pumped medium to leave the contracting chambers.
REFERENCES:
patent: 601634 (1898-04-01), Cotter et al.
patent: 1315812 (1919-09-01), Bozarth
patent: 3119413 (1964-01-01), Waldo
patent: 3410219 (1968-11-01), Shope
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