Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to fixed actuator
Patent
1976-03-22
1977-09-13
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Sustained ancillary movement of rotary working member
Responsive to fixed actuator
416129, 416168R, B64C 2710
Patent
active
040478386
ABSTRACT:
Pitch control linkage for the upper rotor of coaxial counterrotating rotors utilizes conventional swashplate, control rod and servomotor elements for changing blade pitch but without the conventional rotating and non-rotating scissors for reacting swashplate torque. This is accomplished by the use of rotating and non-rotating walking beams and combination torque reacting control rods between the walking beams and the rotatable and non-rotatable swashplate elements. Means are also disclosed for shimming the rotatable walking beams to achieve pre-track adjustment of the pitch of individual blades.
REFERENCES:
patent: 2271473 (1942-01-01), Bennett
patent: 2540543 (1951-02-01), Neville
patent: 2629570 (1953-02-01), Carnahan
patent: 2829721 (1958-04-01), Gebhard
patent: 3486832 (1969-12-01), Stone et al.
Faiz Robert L.
Ferris Donald L.
Hauschild V. F.
Powell Jr. Everette A.
Tasker M. B.
United Technologies Corporation
LandOfFree
Blade pitch control mechanism for helicopters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blade pitch control mechanism for helicopters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blade pitch control mechanism for helicopters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-270547