Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Motor bodily rotatable with impeller hub or shaft
Patent
1979-07-20
1982-12-07
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Motor bodily rotatable with impeller hub or shaft
416162, B64C 1138
Patent
active
043624677
ABSTRACT:
There is disclosed a hydraulically-controllable variable pitch propeller device capable of being removably mounted on a propeller shaft. The device includes a rotatable mounting flange and a stationary hydraulic mechanism located between the mounting flange and the propeller hub. The hydraulic mechanism includes a cylinder and a piston. The device also includes means for varying the pitch of the propeller blades in response to movement of the piston within the cylinder. The varying means includes a thrust face cooperating with a face of the piston, both the thrust face and piston face having mating races in which ball bearings are mounted.
The device also includes a novel control mechanism for regulating the amount of hydraulic fluid in the hydraulic cylinder for controlling the location of the piston and thus the pitch of the propeller blades.
REFERENCES:
patent: 1125719 (1915-01-01), Ritchie
patent: 1383379 (1921-07-01), Blain
patent: 1777254 (1930-09-01), Connors
patent: 1878358 (1932-09-01), Yates
patent: 1936677 (1933-11-01), Kozub
patent: 2425261 (1947-08-01), Murphy et al.
patent: 2553128 (1951-05-01), Biermann
patent: 2554611 (1951-05-01), Biermann
patent: 2717652 (1955-09-01), Nichols
patent: 2970442 (1961-02-01), Taylor
patent: 3024848 (1962-03-01), Chilman et al.
patent: 3034584 (1962-05-01), Hindmarch
patent: 3051249 (1962-08-01), Dirlik
patent: 3056457 (1962-10-01), MacFarland
patent: 3095932 (1963-07-01), Hercules
patent: 3216507 (1965-11-01), Curioni
patent: 3338313 (1967-08-01), Tolley et al.
patent: 3567340 (1971-03-01), Schneider et al.
patent: 3792937 (1974-02-01), Chilman
patent: 3824905 (1974-07-01), Jablonski
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