Back to results
US 2026/0071546 A1Published application
Propeller
AssigneeConic Propulsion, LLC
InventorThomas A. Russell
Life of this patent
Estimating the term…
Abstract
A propeller. The blade thrust surfaces of the propeller correspond to the surface of a cone, and the hub axis is set at an angle relative to a first generator line of the cone which passes through the hub axis and a second generator line of the cone which passes through the blade thrust surface to achieve desired gamma angles over the blade thrust surface. A propeller whose blade center axis does not conform to a generator line of a cone also is disclosed.
Claims22
A propeller comprising:
- a hub characterized by a hub axis and an axis of rotation;
- and
- one or more blades characterized by a root, a tip, a leading edge and a corresponding trailing edge, and a thrust surface;
- wherein, for each of the one or more blades:
- the blade thrust surface conforms to a surface of a reference cone characterized by a vertex, a base, a vertical axis, and a plurality of generator lines;
- wherein
- in reference to the reference cone, the hub axis intersects a first generator line of the reference cone, and the blade thrust surface contains a straight path over the thrust surface corresponding to a second generator line;
- and
- the hub axis intersects the cone surface but is not tangent to the cone surface and does not intersect the vertical axis.
6 more elements
A propeller comprising:
- a hub characterized by a hub axis and an axis of rotation;
- and
- one or more blades characterized by a root, a tip, a leading edge and a corresponding trailing edge, and a thrust surface;
- wherein, for each of the one or more blades:
- the blade thrust surface conforms to a surface of a cone, said blade thrust surface characterized by an arc spanning the blade from the leading edge to the trailing edge along which the gamma angle is 90 degrees.
2 more elements
A propeller comprising:
- a hub characterized by a hub axis and an axis of rotation;
- and
- one or more blades characterized by a root, a tip, a leading edge and a corresponding trailing edge, and a thrust surface;
- wherein, for each of the one or more blades:
- the blade thrust surface conforms to a surface of a reference cone characterized by a vertex, a base, a vertical axis, and a plurality of generator lines;
- wherein
- in reference to the reference cone, the hub axis intersects a first generator line of the reference cone, and the blade thrust surface contains a straight path over the thrust surface corresponding to a second generator line;
- and
- the hub axis forms an acute angle with a portion of the first generator line between the intersection of the hub axis with the generator line and the apex of the reference cone.
6 more elements
Dependencies are inferred from the claim text.