US 12,031,450 B2
Turbocharger with vaned diffuser for the compressor
Haiying Sun, Shanghai (CN); Xiongxiong Tang, Wuhan (CN); and Guangqing Zheng, Shanghai (CN)
Assigned to GARRETT TRANSPORTATION I INC., Torrance, CA (US)
Filed by Garrett Transportation I Inc., Torrance, CA (US)
Filed on Aug. 15, 2022, as Appl. No. 17/819,641.
Prior Publication US 2024/0044263 A1, Feb. 8, 2024
Int. Cl. F01D 25/24 (2006.01); F01D 9/04 (2006.01); F01D 11/00 (2006.01)
CPC F01D 25/246 (2013.01) [F01D 9/041 (2013.01); F01D 11/003 (2013.01); F05D 2220/40 (2013.01); F05D 2230/64 (2013.01); F05D 2240/14 (2013.01); F05D 2250/12 (2013.01); F05D 2260/36 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A turbocharger comprising:
a compressor housing and a centrifugal compressor wheel mounted within the compressor housing and affixed to one end of a shaft, the compressor housing defining a volute for receiving compressed air from the compressor wheel;
a turbine housing and a turbine wheel mounted within the turbine housing and affixed to an opposite end of the shaft;
a center housing containing bearings for the shaft, one side of the center housing abutting the compressor housing and an opposite side of the center housing abutting the turbine housing;
a diffuser ring mounted between the compressor housing and the center housing such that a diffuser passage is defined between a surface of the compressor housing and a surface of the diffuser ring, the diffuser ring defining vanes integrally formed with and axially projecting from said surface of the diffuser ring, an axial height of the vanes being smaller than an axial width of the diffuser passage
a seal ring axially compressed between the compressor housing and the diffuser ring, and
wherein the diffuser ring defines an integrally formed locating pin that axially projects toward the center housing, and the center housing defines a blind receptacle into which the locating pin is received for radially locating the diffuser ring relative to the center housing, and
wherein the center housing defines an integrally formed, axially projecting fence located radially outwardly of and proximate to a radially outer periphery of the seal ring.