Bladed rotors having control means for effecting blade pitch adj

Details Bladed rotors having control means for effecting blade pitch adj Bladed rotors having control means for effecting blade pitch adj

1975-09-04

1977-07-26

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

Impeller rotation speed responsive

416154, 416157R, B64C 1140

Patent

active

040379868

ABSTRACT:
Control means, for effecting the pitch-adjustment of a rotor blade, includes an actuator urgeable by biassing means in one direction for adjusting pitch in one sense and being subjectable to fluid pressure for movement in the opposite direction, against the action of the biassing means, for adjusting pitch in the other sense. Stop means is provided which is also subjectable to said fluid pressure, being maintained in an inoperative position when the pressure is above a predetermined value and being movable into an operative position when the pressure falls below that predetermined value. Abutment means is engageable by the stop means, when in its operative position, to arrest movement of the actuator at a predetermined position when moving in said one direction.

REFERENCES:
patent: 2343416 (1944-03-01), Keller
patent: 2368950 (1945-02-01), Thomas
patent: 2722985 (1955-11-01), Biermann
patent: 2948344 (1960-08-01), Biermann
patent: 2974729 (1961-03-01), Voisard
patent: 2992687 (1961-07-01), Brett et al.
patent: 3115937 (1963-12-01), Biermann
patent: 3167131 (1965-01-01), Voisard
patent: 3207227 (1965-09-01), Timewell
patent: 3637323 (1972-01-01), Chilman et al.
patent: 3792937 (1974-02-01), Chilman

Affiliated with

Also associated with

Rating

Bladed rotors having control means for effecting blade pitch adj does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bladed rotors having control means for effecting blade pitch adj, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bladed rotors having control means for effecting blade pitch adj will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-723485