Back to results
US 12,015,325 B2Granted
Universal shaft with a generator for generating electricity
AssigneeOff-Highway Powertrain Services Germany GmbH
InventorsMax Krüger, Timur Mehmet Kisla, Mike Mildenberger
Life of this patent
Estimating the term…
Abstract
A universal shaft with a generator for generating electricity with the generator being driven by a cardan error occurring with a rotation of the universal shaft.
Claims12
A shaft with a shaft body and a generator comprising a secondary part and a primary part arranged within said secondary part and movable relative to said secondary part,
- wherein said generator is provided within said shaft body in a rotationally fixed manner and that said primary part is movable along a direction of longitudinal extension of said secondary part,
- wherein said direction of longitudinal extension of said secondary part is at a radial distance to a longitudinal axis of said shaft body,
- wherein said secondary part comprises a coil connected in a rotationally fixed manner to said shaft body and said primary part comprises a magnet mounted in a spring-loaded manner deflectable within said coil in the circumferential direction of said shaft body, wherein said magnet is provided on a carrier of said primary part, wherein a first end of said carrier is coupled to a first leaf spring of a plurality of leaf springs and a second end of said carrier is coupled to a second leaf spring of the plurality of leaf springs, and wherein the first leaf spring and the second leaf spring of the plurality of leaf springs extend in a radial direction to a web provided at the radial center of said shaft body.
A method for operating a shaft with a shaft body and a generator, the method comprising:
- moving a primary part of said generator, comprising a magnet and a carrier, relative to a secondary part of said generator, comprising a coil connected in a rotationally fixed manner to said shaft body, said magnet mounted in a spring-loaded manner deflectable within said coil in a circumferential direction of said shaft body, and said magnet provided on said carrier, wherein a first end of said carrier is coupled to a first leaf spring of a plurality of leaf springs and a second end of said carrier is coupled to a second leaf spring of the plurality of leaf springs;
- and
- swinging the primary part to and fro in a circumferential direction that is tangential to a radial direction of said shaft body by way of the first leaf spring and the second leaf spring, wherein the first leaf spring and the second leaf spring extend in the radial direction to a web provided at the radial center of said shaft body when said shaft rotates or vibrates, wherein said generator is provided within said shaft body in a rotationally fixed manner.
Dependencies are inferred from the claim text.