Dingfeng Deng

20130032122, Feb 7, 2013

Aug 5, 2011

13/204136

DINGFENG DENG - AUBURN HILLS MI, US
FANGHUI SHI - BLOOMFIELD HILLS MI, US
YUCHUAN LIU - TROY MI, US
BO YANG - TROY MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - DETROIT MI

F02D 9/10

123336

An intake air flow control assembly includes an actuator, a valve shaft, a first valve member and a drive member. The actuator includes a drive shaft defining a first rotational axis. The valve shaft defines a second rotational axis. The first valve member is fixed for rotation with the valve shaft and adjusts air flow from an intake manifold to an engine intake port. The drive member is engaged with the drive shaft and the valve shaft. The drive member extends around an outer circumference of the drive shaft and around an outer circumference of the valve shaft. The drive shaft is rotatable in first and second rotational directions opposite one another to rotate the valve shaft via the drive member and rotationally displace the first valve member.

20200408247, Dec 31, 2020

Jun 27, 2019

16/455061

- Detroit MI, US
Dingfeng Deng - Auburn Hills MI, US
Yuchuan Liu - Troy MI, US

F16C 17/02
F01D 25/18
F01D 25/16
F04D 29/057
F16C 17/26
F16C 33/10

A fluid bearing for operably connecting a shaft to a center housing of a turbocharger is provided. The fluid bearing includes a single-piece bearing sleeve defining a bore between first and second ends that each form a thrust face. The sleeve includes first and second bearing portions proximal to an associated one of the first and second ends, and a shank connecting the first and second bearing portions. Each of the first and second bearing portions includes an outer bearing surface defining a maximum outer diameter, and each of the first and second bearing portions includes an inner bearing surface defining a minimum inner diameter for radially supporting the shaft in the bore. The inner bearing surface is a continuous surface free of grooves. The sleeve has a wall thickness defining oil passages spaced from the inner bearing surface and configured to supply oil to the thrust face.

20190017550, Jan 17, 2019

Jul 11, 2017

15/646633

- Detroit MI, US
Dingfeng DENG - Auburn Hills MI, US
Ran WU - Auburn Hills MI, US
Louis P. BEGIN - Rochester MI, US
Yuli HUANG - Auburn Hills MI, US

F16C 33/66
F16C 17/18

A turbocharger including a housing and a rotary assembly disposed within the housing and including a turbine wheel and a compressor wheel attached to one another by a shaft. The rotary assembly being subject to aero-load in a lateral direction. A bearing is disposed in the housing and rotatably supports the shaft, the bearing including an inner bearing surface that engages the shaft and an outer bearing surface that engages the housing, the outer bearing surface having a pair of axially extending recessed grooves extending at least partially along the bearing. The pair of axially extending grooves being located perpendicular to the aero-load direction

20180283269, Oct 4, 2018

Mar 29, 2017

15/472389

- DETROIT MI, US
Louis P. BEGIN - Rochester MI, US
Fanghui SHI - Bloomfield Hills MI, US
Dingfeng DENG - Auburn Hills MI, US

F02B 39/14
F02B 37/00

A turbocharger for an internal combustion engine includes a center housing which defines a bore, a recess, and an annular groove. The annular groove and the recess may be configured to receive a fluid. A bearing is disposed within the bore proximate to the a turbine wheel such that the bearing, together with the rotating shaft, feeds fluid to the annular groove and recess. The shaft may be further coupled to the turbine wheel at a proximate end and a compressor wheel at a distal end. The shaft has a longitudinal axis and is supported by the bearing for rotation within the bore about the axis. The annular groove is in fluid communication with a drain gallery via a conduit.

20180258843, Sep 13, 2018

Mar 10, 2017

15/455699

- Detroit MI, US
Dingfeng Deng - Auburn Hills MI, US
Ran Wu - Auburn Hills MI, US

F02B 39/14
F02B 37/00
F02B 33/40
F01D 5/04
F01D 25/24
F01D 25/16
F01D 25/18
F04D 29/28

A turbocharger for an internal combustion engine includes a center housing and a bore defined by the center housing. The bore has a primary annular groove and a secondary annular groove configured to receive a fluid. A journal bearing is disposed within the bore proximate to a proximate end of the shaft such that the journal bearing, together with the rotating shaft, feeds fluid to the primary and secondary annular grooves. The shaft is further coupled to a turbine wheel and a compressor wheel. The shaft has a longitudinal axis and is supported by the journal bearing for rotation within the bore about the axis. The primary and secondary annular grooves are each in fluid communication with a drain gallery.

20170335864, Nov 23, 2017

May 19, 2016

15/159420

- Detroit MI, US
Dingfeng DENG - Auburn Hills MI, US
Ran WU - Auburn Hills MI, US
Louis P. BEGIN - Rochester MI, US

F04D 29/66
F04D 29/056
F02M 26/04
F04D 17/10
F16C 25/00
F04D 29/42

A turbocharger includes a housing and a rotary assembly disposed within the housing and including a turbine wheel and a compressor wheel attached to one another by a shaft. A bearing is disposed in the housing and rotatably supports the shaft. The bearing includes a pair of inner bearing surfaces that engage opposite ends of the shaft and a pair of outer bearing surfaces that engage the housing. The pair of inner bearing surfaces have a first axial dimension and the pair of outer bearing surfaces have a second axial dimension that is smaller than the first axial dimension.

20160215785, Jul 28, 2016

Jan 22, 2015

14/602405

- Detroit MI, US
Dingfeng Deng - Auburn Hills MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

F04D 29/056
F04D 17/10
F04D 25/04
F02M 25/07

A turbocharger for an internal combustion engine includes a bearing housing defining a bearing bore and a hybrid journal bearing system disposed within the bore. The hybrid journal bearing system includes first and second journal bearings. The first journal bearing is a semi-floating bearing and the second journal bearing is a full-floating bearing. The turbocharger also includes a shaft having a first end and a second end, wherein the shaft is supported by the journal bearing system for rotation about an axis within the bore. The turbocharger also includes a turbine wheel fixed to the shaft proximate to the first end and configured to be rotated about the axis by post-combustion gases emitted by the engine. Additionally, the turbocharger includes a compressor wheel fixed to the shaft proximate to the second end and configured to pressurize an airflow being received from the ambient for delivery to the engine.

20160115909, Apr 28, 2016

Oct 22, 2014

14/520794

- Detroit MI, US
Ran Wu - Auburn Hills MI, US
Dingfeng Deng - Auburn Hills MI, US

F02M 25/07
F04D 29/051
F16C 32/06

A turbocharger for an internal combustion engine includes a bearing housing and a rotating assembly arranged therein. The rotating assembly includes a shaft with a turbine wheel and a compressor wheel. The turbocharger also includes a thrust bearing assembly operatively connected to the shaft, lubricated by pressurized oil from the engine, and configured to transmit thrust forces developed by the turbine wheel to the bearing housing. The thrust bearing assembly includes a thrust plate having a first thrust face and a thrust washer having a second thrust face. An oil film is generated between the first and second thrust faces, and the first and second thrust faces rotate relative to each other and transmit the thrust forces to the bearing housing. The thrust plate and/or the thrust washer include a circumferential groove configured to trap oil-borne debris and minimize an amount of the debris in the oil film.