US 11,732,601 B2
Variable turbine geometry assembly
Augustine Cavagnaro, Flat Rock, NC (US); Elias Morgan, Leicester, NC (US); and Greg Williams, Arden, NC (US)
Assigned to BorgWarner Inc., Auburn Hills, MI (US)
Filed by BorgWarner Inc., Auburn Hills, MI (US)
Filed on Dec. 6, 2021, as Appl. No. 17/542,791.
Prior Publication US 2023/0175414 A1, Jun. 8, 2023
Int. Cl. F01D 17/16 (2006.01); F02B 39/00 (2006.01)
CPC F01D 17/16 (2013.01) [F02B 39/00 (2013.01); F05D 2220/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A variable turbine geometry assembly for controlling flow of exhaust gas to a turbine wheel of a turbocharger, said variable turbine geometry assembly comprising:
an adjustment ring extending along and rotatable about an axis;
at least one vane lever coupled to said adjustment ring;
at least one vane coupled to said at least one vane lever, with said at least one vane moveable with respect to said adjustment ring when said adjustment ring rotates about said axis; and
a biasing member,
coupled to said adjustment ring at a first circumferential location on said adjustment ring,
coupled to said adjustment ring at a second circumferential location different from said first circumferential location on said adjustment ring,
extending from said first circumferential location on said adjustment ring to said second circumferential location on said adjustment ring, and
operably in contact with said at least one vane lever between said first circumferential location and said second circumferential location to bias said at least one vane lever toward said adjustment ring and to reduce vibration between said adjustment ring and said at least one vane lever.