Wei Chi Wang

US Patent:

6550480, Apr 22, 2003

Filed:

Jan 31, 2001

Appl. No.:

09/773108

Inventors:

Tatyana Feldman - Newport Beach CA
Wei Wang - Irvine CA

Assignee:

Numed/Tech LLC - Newport Beach CA

International Classification:

A61F 606

US Classification:

128831, 128843, 604 1, 60438517

Abstract:

Disclosed are occluders and methods of their use. The occluders comprise shape-memory polymeric materials which, when heated above their crystalline melting temperatures, may be deformed from a first configuration into a second configuration. The occluder is then held in the deformed shape until it cools to a temperature below its crystalline melting temperature (T ) whereby it holds the deformed shape of the second configuration by virtue of the recrystallization of the polymeric occluder material. Upon reheating the occluder above its T , the occluder will resume its original shape. In this manner, an occluder which has been deformed to reduce its diameter may be inserted into and positioned within a target lumen in the body and then allowed to warm to body temperature whereby it resumes its original diameter and results in the occlusion of the lumen. The occluders, according to preferred embodiments, may be used for reversible sterilization of mammals, among other surgical and non-surgical uses.

US Patent:

7673450, Mar 9, 2010

Filed:

Jul 25, 2006

Appl. No.:

11/492734

Inventors:

Wei Wang - Irvine CA, US
Philip George - Wooster OH, US
Christopher Shamie - Wadsworth OH, US
Bhaskar Marathe - Wooster OH, US

Assignee:

LuK Lamellen und Kupplungsbau Betilingungs - Buehl

International Classification:

F16D 33/00
F16D 33/20

US Classification:

60367, 60330

Abstract:

More efficient, economic vehicular torque converters comprising novel integrated one-piece turbine/impeller blade-core assemblies with innovative fluid coupling means for greater torque capacities.

US Patent:

7850426, Dec 14, 2010

Filed:

Mar 23, 2007

Appl. No.:

11/728067

Inventors:

Wei Wang - Irvine CA, US
Nigel Gurney - Wooster OH, US
Michael Van Sickle - Akron OH, US
David Avins - Burbank OH, US
Michael Buck - Buehl, DE
Christopher Hensel - Fredericksburg OH, US
Aaron J. Schley - Canal Fulton OH, US

Assignee:

Schaeffler Technologies GmbH & Co. KG - Herzogenaurach

International Classification:

F01D 25/28

US Classification:

4152131, 4152151, 415224, 416180, 416189, 416197 C

Abstract:

The present invention broadly comprises a torque converter including a cover arranged to accept torque from a drive unit and an impeller. The cover and the impeller are joined by a crimped connection. In some aspects, the converter includes a sealing element disposed between the cover and the impeller and the sealing element is selected from the group consisting of an o-ring and a gasket. In some aspects, the cover is a cast piece. In some aspects, the cover is formed by a process selected from the group consisting of: molding, compression molding, and pressed metal forming. In some aspects, the cover is a stamped metal piece. The present invention also broadly comprises a torque converter including a cover, an impeller, and an induction brazed connection joining the cover and impeller. In some aspects, the cover further comprises axially disposed fingers engaged with the impeller.

US Patent:

7883322, Feb 8, 2011

Filed:

Dec 12, 2006

Appl. No.:

11/637325

Inventors:

Wei Wang - Irvine CA, US
Bruno Mueller - Sasbach, DE
Manfred Homm - Buehl-Neusatz, DE
Jeffrey Hemphill - Copley OH, US
Philip George - Wooster OH, US
Wolfgang Reik - Buehl, DE

Assignee:

Schaeffler Technologies GmbH & Co. KG - Herzogenaurach

International Classification:

F16D 33/00

US Classification:

416180, 416197 C, 60330

Abstract:

The present invention broadly comprises a cone connection assembly for a torque converter, including: a first surface operatively arranged for connection to a crankshaft and a second surface on a cover of the torque converter. The first and second surfaces are arranged to be engaged and the first surface is arranged to transfer torque to the second surface via the engagement of the first and second surfaces. In some aspects, the crankshaft comprises a longitudinal axis, the first surface is disposed about the longitudinal axis, the cover comprises an outside surface, and the outside surface comprises the second surface. In some aspects, the first and second surfaces are arranged to be frictionally engaged or the first and second surfaces have complementary surface features and the first and second surface features are arranged to interlockingly engage.

US Patent:

7955207, Jun 7, 2011

Filed:

Apr 24, 2007

Appl. No.:

11/789151

Inventors:

Wei Wang - Irvine CA, US
Jeffrey Hemphill - Copley OH, US
Philip George - Wooster OH, US
George Bailey - Wooster OH, US
Christopher Shamie - Wadsworth OH, US

Assignee:

Schaeffler Technologies GmbH & Co. KG - Herzogenaurach

International Classification:

F16H 47/08

US Classification:

475 36, 475 53, 475 59

Abstract:

The present invention broadly comprises a torque converter including a cover and a planetary gear set rotationally interfaced with a hydraulic circuit and arranged to modify torque received by the cover from an engine. In some aspects, the gear set includes first and second components rotationally secured to the cover and an impeller shell, respectively. In some aspects, the first and second components are a carrier and ring gear, respectively. In some aspects, the gear set further comprises third and fourth component rotationally connected to a turbine shell and the output hub, respectively. The third component is arranged to receive torque from a clutch or a hub connected to the clutch. In some aspects, the third and fourth components are a carrier and ring gear, respectively. The gear set includes a component rotationally fixed with respect to a torque converter axis, and in some aspects, a ratchet one-way stator clutch.

US Patent:

8340858, Dec 25, 2012

Filed:

May 21, 2010

Appl. No.:

12/784792

Inventors:

Jihoon Jang - Torrance CA, US
Bon Ho Bae - Torrance CA, US
Wei D. Wang - Troy MI, US
Jeong J. Park - Ann Arbor MI, US
Harry J. Bauer - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06F 7/00

US Classification:

701 292, 701 297

Abstract:

Methods and systems for controlling motor torque in a hybrid vehicle are provided. A current sensor provides a feedback current when the sensor is operating properly. A processor controls the motor torque using the feedback current if the current sensor is operating properly. The processor controls the motor torque using a slip value for the hybrid vehicle if the current sensor is not operating properly.

US Patent:

8463474, Jun 11, 2013

Filed:

May 21, 2010

Appl. No.:

12/784758

Inventors:

Jihoon Jang - Torrance CA, US
Bon Ho Bae - Torrance CA, US
Wei D. Wang - Troy MI, US
Jeong J. Park - Ann Arbor MI, US
Harry J. Bauer - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60L 11/00

US Classification:

701 22

Abstract:

Methods and systems are provided for motor torque control for hybrid vehicles having a motor and a communications bus. The motor torque is controlled using a first motor torque capacity if the communications bus is healthy. The motor torque is controlled using a second motor torque capacity if the communications bus is unhealthy. The first motor torque capacity has a first absolute value. The second motor torque capacity has a second absolute value that is less than the first absolute value.

US Patent:

8463483, Jun 11, 2013

Filed:

Feb 12, 2010

Appl. No.:

12/704659

Inventors:

Brian A. Welchko - Torrance CA, US
Abbas Raftari - West Bloomfield MI, US
Silva Hiti - Redondo Beach CA, US
Jeong J. Park - Ann Arbor MI, US
Hanne Buur - Brighton MI, US
Wei D. Wang - Troy MI, US
William R. Cawthorne - Milford MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06F 7/00
G06F 19/00
G01M 17/00

US Classification:

701 291, 701 329, 340635, 705 34

Abstract:

Methods and systems are provided for monitoring an electrical system of a vehicle. Data pertaining to the electrical system is obtained. Calculation modules are performed using the data to generate intermediate determinations. An aggregate calculation module is performed using each of the intermediate determinations to generate an aggregate determination pertaining to the electrical system. Redundant intermediate calculations are performed using the data to generate redundant intermediate determinations. Each of the redundant intermediate determinations is used for comparison with a respective intermediate determination.