Aircraft with rotor vibration isolation

Details Aircraft with rotor vibration isolation Aircraft with rotor vibration isolation

2005-11-16

2009-02-17

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

Reexamination Certificate

active

07490792

ABSTRACT:
A rotor aircraft has a fuselage with a rotor mounted above by a rotor shaft. An arm is pivotally engaged with a lower portion of the rotor shaft and pivotally engaged with the fuselage, enabling the rotor to move with little restriction vertically and horizontal in all directions relative to the fuselage as the rotor rotates in order to isolate rotor oscillations. An infinitely variable air spring is used to counter vertical and fore and aft loads. Damping in the form of elastomeric materials, piston seal friction, and fluid flow through an orifice may be added as required.

REFERENCES:
patent: 3118504 (1964-01-01), Cresap
patent: 3428271 (1969-02-01), Barzda et al.
patent: 3477665 (1969-11-01), Legrand
patent: 3698663 (1972-10-01), Balke et al.
patent: 4362281 (1982-12-01), Cresap et al.
patent: 4365771 (1982-12-01), Halwes
patent: 4720060 (1988-01-01), Yana
patent: 5301900 (1994-04-01), Groen et al.
patent: 5316240 (1994-05-01), Girard et al.
patent: 5392885 (1995-02-01), Patzenhauer et al.
patent: 5853145 (1998-12-01), Carter, Jr.
patent: 6024325 (2000-02-01), Carter, Jr.
patent: 6435453 (2002-08-01), Carter, Jr.
patent: 6527515 (2003-03-01), Carter, Jr.
patent: 7137591 (2006-11-01), Carter et al.
U.S. Appl. No. 10/782,353, filed Feb. 19, 2004, Carter, Jr.

Affiliated with

Also associated with

Rating

Aircraft with rotor vibration isolation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aircraft with rotor vibration isolation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aircraft with rotor vibration isolation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4066757