Valve sleeve

Details Valve sleeve Valve sleeve

1990-10-10

1991-12-03

Chambers, A. Michael

Valves and valve actuation

Valve

Seats

13762521, 91375A, F15B 910

Patent

active

050694251

ABSTRACT:
A valve sleeve is fitted around valve rotor to define a rotary valve. The valve sleeve is characterized by the configuration of axially extending grooves which are formed in its internal surface. Specifically, the axial groove has a bottom surface which includes a lengthwise portion having a constant depth. The bottom surface of the groove is connected to the wall surfaces which are located at the opposite lengthwise ends as well as with the opposite lateral side walls by arcuate surfaces. At least one of the wall surfaces which are located at the lengthwise ends has an angle of inclination which exceeds 60.degree..

REFERENCES:
patent: 4535519 (1985-08-01), Kajikawa et al.
patent: 4540024 (1985-09-01), Bacardit
patent: 4558720 (1985-12-01), Larson et al.
patent: 4577660 (1986-03-01), Haga et al.
patent: 4624283 (1986-11-01), Futaba
patent: 4765369 (1988-08-01), Bacardit
patent: 4779646 (1988-10-01), Vincent

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