Back to results
US 11,338,906 B2Granted
Propeller system
AssigneeHamilton Sundstrand Corporation
InventorsTadashi Sawata, Andrew Page
Life of this patent
Estimating the term…
Abstract
A propeller system includes a rotatable housing having at least one propeller blade mounted thereon and an electric pitch control motor within the rotatable housing. A pitch control member is coupled to the propeller blade and extends through a wall of the rotatable housing. The pitch control motor is configured to move the pitch control member and to thereby vary the pitch of the propeller blade.
Claims10
A propeller system comprising:
- a rotatable housing having at least one propeller blade mounted thereon;
- an electric pitch control motor within the rotatable housing;
- and
- a pitch control member coupled to the propeller blade and extending through a wall of the rotatable housing;
- wherein the pitch control motor is configured to move the pitch control member and to thereby vary the pitch of the propeller blade;
- wherein:
- the propeller blade extends radially outwards from the rotatable housing and has an inner end mounted to the housing such that the propeller blade is able to rotate about its longitudinal axis;
- and
- the pitch control member is engaged with a lateral side of the propeller blade such that when the pitch control motor moves the pitch control member, the propeller blade is rotated about its longitudinal axis so as to vary the pitch of the propeller blade.
6 more elements
A propeller system comprising:
- a rotatable housing having at least one propeller blade mounted thereon;
- an electric pitch control motor within the rotatable housing;
- and
- a pitch control member coupled to the propeller blade and extending through a wall of the rotatable housing;
- wherein the pitch control motor is configured to move the pitch control member and to thereby vary the pitch of the propeller blade;
- wherein the pitch control motor is a linear motor for moving the pitch control member in a direction that is substantially parallel to a rotational axis about which the rotatable housing rotates.
3 more elements
A propeller system comprising:
- a rotatable housing having at least one propeller blade mounted thereon;
- an electric pitch control motor within the rotatable housing;
- a pitch control member coupled to the propeller blade and extending through a wall of the rotatable housing, wherein the pitch control motor is configured to move the pitch control member and to thereby vary the pitch of the propeller blade;
- and
- a propulsion motor configured to rotate the rotatable housing, wherein the propulsion motor is an electric motor having an inner stator and an outer rotor, and wherein the rotatable housing forms part of the outer rotor.
2 more elements
Dependencies are inferred from the claim text.