Patent ID: 11879536
Assignee: LITENS AUTOMOTIVE PARTNERSHIP
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A rotary device, comprising:
a shaft adapter that is connectible to a shaft that is either an engine crankshaft or is an accessory shaft that holds a rotational functional element of a vehicle accessory, wherein the shaft adapter defines an axis;
a chambered member that is rotatably connected to the shaft adapter, wherein the chambered member, and wherein the chambered member at least partially encloses a chamber,
wherein the chambered member includes a circumferential portion, a first side wall, and a second side wall, wherein the second side wall is a separate member from the circumferential portion,
wherein, one of the circumferential portion and the second side wall has a first torque transfer surface with a plurality of projections thereon that extend at least partially axially or partially radially, and the other of the circumferential portion and the second side wall has a second torque transfer surface thereon with a plurality of valleys that mate with the plurality of projections with no clearance therebetween in a circumferential direction, such that the first torque transfer surface and the second torque transfer surface can transfer a torque of at least 10 Nm into one another without plastic deformation of the second side wall and of the circumferential portion;
a seal member that is compressed between the second side wall and the circumferential portion, wherein one of the second side wall and the circumferential portion has an axial locking projection that is sandwiched axially between a first shoulder and a second shoulder in the other of the second side wall and the circumferential portion with no axial clearance between the axial locking projection and the first and second shoulders, so as to lock the second side wall axially relative to the circumferential portion; and
at least one internal torque transfer member in the chamber, and positioned to transfer torque between the shaft adapter and the second side wall.