Combined bearing device for a rotorcraft rotor and a rotor equip

Details Combined bearing device for a rotorcraft rotor and a rotor equip Combined bearing device for a rotorcraft rotor and a rotor equip

1988-03-24

1989-03-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Including movement limit stop or damping means

416141, 416134A, B64C 2738

Patent

active

048159379

ABSTRACT:
The invention relates to a combined bearing device for a rotorcraft rotor or a rotor equipped with such a bearing device. In the rotor, each blade is held on the hub by a flexible arm surrounded without contact by a rigid stub sleeve by a combined bearing device including a cylindrical plain angle of attach bearing, a spherical ball joint with visco-elastic element for resiliently returning the blade under flapping and drag conditions, and with an integrated damper for damping the angular oscillations of the blade under drag conditions, of the hydraulic rotation damper type with vanes for laminating the hydraulic fluid and compensation chambers for the expansion of this latter, the hydraulic damper being integrated in the spherical thrust bearing and its compensation chambers belonging to a hydraulic automatic play take-up device for the plain bearing.

REFERENCES:
patent: 2815821 (1957-12-01), Echeverria
patent: 2949967 (1960-08-01), Jovanovich
patent: 3504989 (1970-04-01), Kisovec
patent: 4129403 (1978-12-01), Watson
patent: 4222709 (1980-09-01), Mouille
patent: 4227858 (1980-10-01), Donguy
patent: 4249862 (1981-02-01), Waddington et al.
patent: 4257739 (1981-03-01), Covington et al.
patent: 4273511 (1981-06-01), Mouille et al.
patent: 4293277 (1981-10-01), Aubry
patent: 4297080 (1981-10-01), Krauss et al.
patent: 4676720 (1987-06-01), Niwa et al.

Affiliated with

Also associated with

Rating

Combined bearing device for a rotorcraft rotor and a rotor equip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combined bearing device for a rotorcraft rotor and a rotor equip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined bearing device for a rotorcraft rotor and a rotor equip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1655761