Patent ID: 11958594
Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A cyclic pitch angle adjustment apparatus for a rotor with a rotor head and rotor blades that rotate around a rotor axis in a rotor plane, comprising:
a base point;
a bearing that is located in a central point positioned outside the rotor plane;
a first lever that is connected to a first rotor blade of the rotor blades and rotates the first rotor blade around a first pitch axis;
a second lever that is connected to a second rotor blade of the rotor blades and rotates the second rotor blade around a second pitch axis;
first and second rods that mechanically link the first and second levers with the bearing in the central point such that the first and second rods are movable relative to the central point, wherein the first and second rods are integrally formed as a single rod;
a connection that connects the first lever, the second lever, and the single rod with each other in a first location; and
a central rod being disposed along a central rod axis that is parallel with the rotor axis, the central rod connects the bearing with the base point and is movable from along the central rod axis from a first position to a different second position and the central rod being adapted for adjusting the cyclic pitch angle of the first rotor blade and second rotor blade when the central rod is positioned in the first position to a first pitch angle and when the central rod is positioned in the second position to a second pitch angle that is different from the first pitch angle, at least one of a distance of the bearing from the rotor axis or a distance of the bearing from the rotor plane being adjustable.