Rotary expansible chamber devices – With mechanical sealing – Seal element between vane and cylinder
Patent
1995-05-26
1996-09-03
Freay, Charles
Rotary expansible chamber devices
With mechanical sealing
Seal element between vane and cylinder
418137, 418146, 418219, 418231, F01L 1910, F01L 100
Patent
active
055518532
ABSTRACT:
An axial vane rotary device (14) includes a stator (16) with a cylindrical internal chamber (34) defined an annular outer wall (40) and two side walls (36, 38) of the stator. Each side wall has an annular cam surface (42, 44). A rotor (54) is rotatably mounted within the chamber. The rotor has an annular outer wall (66) and a plurality of angularly spaced-apart, axially extending slots (64) extending therethrough. A vane (68) is slidably received in each slot. The vanes reciprocate axially and alternatively expand and compress spaces between adjacent vanes and the cam surfaces as the rotor rotates. The cam surfaces have alternating first portions (92) and second portions (90). The second portions are further from the rotor than the second portions. The first portions of one said cam surface are aligned with second portions of another said cam surface. The slots extend radially outwards on the rotor to the annular outer wall thereof. The outer edge of each vane slidably engages the annular outer wall of the stator. The outer wall of the stator may have a guide cam (96) and the vanes may each have a follower (98) received by the guide cam. The guide cam is shaped to came the vanes to reciprocate axially with respect to the rotor as the rotor rotates. Each of the vanes may have resiliently biased first seals (110, 112) extending along the inner edge (106) and second seals (134) along side edges (70, 72) thereof.
REFERENCES:
patent: 570584 (1896-11-01), White
patent: 1846557 (1932-02-01), Imshenetsky
patent: 3769945 (1973-11-01), Kahre
patent: 3886910 (1975-06-01), Vrooman
patent: 4439117 (1984-03-01), Bunger
patent: 4492541 (1985-01-01), Mallen-Herrero et al.
Badgley Patrick R.
Cherry Brian W.
Clark Nigel N.
Mucino Victor E.
Smith James E.
Freay Charles
Regi U.S., Inc.
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