Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1994-01-24
1995-08-15
Chilcot, Jr., Richard E.
Measuring and testing
Volume or rate of flow
Expansible chamber
418 37, G01F 308, F01C 100
Patent
active
054409268
ABSTRACT:
A positive displacement fluid machine comprises a body including a circular cylindrical cavity with two closed ends and two port openings respectively open to the two opposite halves of the cylindrical cavity respectively located on two opposite sides of a plane of symmetry, a vane assembly including a plurality of vanes disposed in a radially extending pattern from a central shaft rotatably and pivotally supporting the plurality of the vanes, which vane assembly is disposed within the circular cylindrical cavity in a coaxial relationship therebetween wherein the radial edges of the vanes slide on the circular cylindrical wall of the cylindrical cavity, and a cam follower-guide mechanism controlling separation angle between adjacent vanes in such a way that the separation angle between adjacent vanes increases from a minimum value to a maximum value in one of the two opposite halves of the cylindrical cavity and decreases from the maximum value to the minmum value in the other of the two opposite halves of the cylindrical cavity.
REFERENCES:
patent: 2243653 (1941-05-01), Rodaway
patent: 3269182 (1966-08-01), Granberg
patent: 3312200 (1967-04-01), Benson
patent: 4022552 (1977-05-01), Wilson
Lew Hyok S.
Lew Hyon S.
Lew Yon K.
Chilcot Jr. Richard E.
Patel Harshad
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