Rotary expansible chamber devices – Working chamber surface expressed mathematically
Patent
1994-02-01
1995-07-11
Bertsch, Richard A.
Rotary expansible chamber devices
Working chamber surface expressed mathematically
418 15, 418268, F04C 200
Patent
active
054315522
ABSTRACT:
A sliding vane pump having an inside liner with a constant radius pump arc and a constant radius stop arc, connected together by cycloidal arcs. The liner has inlet slots arranged extending around a perimeter of a liner extending into the pump arc for maximum filling of the pumping volume. A herringbone-shaped slot arrangement is provided on a outlet side which increases vane life, increases sealing around the vanes on the outlet side, and decreases liner wear. A relief/fill porting arrangement is provided to pressurize the fluid in the pump chamber, or alternately to relieve pressure from the pump chamber. An improved thrust absorber is described particularly useful for truck mounting of the pump. An asymmetrical inside profile for the liner assists in pump operation by providing a fluid mathematical profile which approaches zero acceleration forces at the point of tangency.
REFERENCES:
patent: 2165963 (1939-07-01), Curtis
patent: 3392677 (1968-07-01), Kennedy
patent: 4659298 (1987-04-01), Byram et al.
patent: 4737090 (1988-04-01), Sakai et al.
patent: 4746280 (1988-05-01), Wystemp et al.
patent: 4765688 (1988-08-01), Hofmann et al.
patent: 4830593 (1989-05-01), Byram et al.
"Kent's Mechanical Engineers Handbook", by J. Kenneth Salisbury, Wiley Engineering Handbook Series, 1950, pp. 5-66 & 5-67.
Corken Drawing Cam Model T700, Part No. 4060A, Sep. 1988.
Corken Drawing Cam Model 700, Part No. R4060, Apr. 1988.
Corken Drawing Cam Model 700, Part No. 1849-1H, Nov. 1977.
Corken Drawing Cam Model 700, Part No. 1849-1N, Mar. 1988.
Davis James J.
Gray James D.
Hughes Michael F.
Schuller Ronald A.
Spidell Michael W.
Bertsch Richard A.
Corken, Inc.
Freay Charles G.
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