Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Patent
1986-06-25
1988-03-01
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Selectively adjustable vane or working fluid control means
Upstream of runner
415159, F01D 1714
Patent
active
047282592
ABSTRACT:
A turbine, particularly for a sprinkler system, comprises a rotor mounted on a shaft so as to be rotatable about a rotor axis and having a plurality of curved vanes attached to the wheel rim, a variable nozzle and a control device for control of the flow of water through the turbine. The control device is mounted in a ring shaped space, is a part of the nozzle and a part of the wall of the ring shaped space and the control device controls the size of both an annular clearance between the turbine wheel and the control device and the cross section of the nozzle so that the cross section of the nozzle and the annular clearance are correlated with each other. Advantageously the control device may be a broad surface curved plate mounted on a pivot shaft so as to be pivotable partly between two parallel walls of a fixed part of the nozzle formed by the turbine housing and shaped to follow the radius of curvature of the outer periphery of the rotor. This plate may also have a finger like projection underneath it opposite its pivot shaft and oriented in the direction of the longitudinal axis of the plate.
REFERENCES:
patent: 1626298 (1927-04-01), Rambo
patent: 2083447 (1937-06-01), Hoffmann
patent: 2141923 (1938-12-01), McMahan
patent: 2875696 (1959-03-01), von Zborowski
patent: 4519211 (1985-05-01), Sedille et al.
Podesser Franz D.
Wolfbauer Wilhelm
Dubno Herbert
Garrett Robert E.
Pitko Joseph M.
Rohren- und Pumpenwerk Rudolf Bauer Gesellschaft m.b.H.
Ross Karl F.
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