Michael J Gorman

US Patent:

6702081, Mar 9, 2004

Filed:

Aug 2, 2002

Appl. No.:

10/211733

Inventors:

Michael Joseph Gorman - Ann Arbor MI
Robert Lowell Moses - Ann Arbor MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16D 250638

US Classification:

192 522, 192 7021, 192 85 AA, 192109 R

Abstract:

A multi-mode torque-transmitting assembly includes a plate-supporting element having an axis, and a plate connected to the plate-supporting element such that the plate is axially movable with respect to the plate-supporting element between a first position and a second position in response to applied axial forces. Furthermore, the assembly includes a movement-inhibiting member in sufficient cooperation with the plate for selectively inhibiting axial movement of the plate. The movement-inhibiting member inhibits movement of the plate from the first position in response to a first axial force, and allows movement of the plate toward the second position in response to a second axial force greater than the first axial force, such that the assembly is operable in more than one mode.

US Patent:

6705447, Mar 16, 2004

Filed:

Mar 7, 2002

Appl. No.:

10/093025

Inventors:

Michael Joseph Gorman - Ann Arbor MI
Shushan Bai - Ann Arbor MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16H 2506

US Classification:

192 85AA, 192106 F, 192 525

Abstract:

A hydraulically-operated clutch for an automatic transmission includes a clutch housing assembly with a clutch pack positioned therein. A movable piston is supported in the clutch housing assembly and defines an expandable chamber between the piston and clutch housing assembly. Pressurized fluid is provided to the expandable chamber to effect movement of the piston between engaged and disengaged positions with respect to the clutch pack. The piston and clutch housing assembly are configured such that only a small portion of the expandable chamber is pressurized when the piston is in the disengaged position, thereby providing improved response time for movement of the piston to the engaged position.

US Patent:

7051856, May 30, 2006

Filed:

Nov 4, 2003

Appl. No.:

10/700419

Inventors:

Joseph Hessell - Canton MI, US
Michael J. Gorman - Pinckney MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B60W 10/02

US Classification:

192 85AA, 192109 F

Abstract:

An apparatus for applying and releasing a clutch piston in a clutch cylinder against a return spring includes a fill oil chamber having first and second portions separated by a fill piston. The first portion is in fluid communication with the clutch cylinder through a first passage, and the second portion is in fluid communication with a second passage. A third passage is in fluid communication with the first passage. A fill control valve is operative to alternately communicate the second passage to a transmission line pressure passage or an exhaust passage. The fill control valve is further operative to alternately communicate the third passage to a controllable source of pressurized oil having a signal pressure, or to close the third passage.

US Patent:

7878298, Feb 1, 2011

Filed:

Dec 18, 2006

Appl. No.:

11/612150

Inventors:

Franz Winter - Mainz, DE
Wolfgang Heil - Gross-Gerau, DE
Steffen Doenitz - Darmstadt, DE
Michael J. Gorman - Pinckney MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F01N 13/08
F01N 1/00
F01N 1/02
F01N 1/08
F01N 1/10
F01N 1/24

US Classification:

181227, 181247, 181248, 181249, 181252, 181256, 181258, 181268, 60324, 429 34

Abstract:

One embodiment of the invention includes a product including a fuel-cell exhaust diffuser; an air funnel; and at least two exhaust tubes attached to the diffuser.

US Patent:

20040159519, Aug 19, 2004

Filed:

Feb 14, 2003

Appl. No.:

10/366911

Inventors:

Michael Gorman - Ann Arbor MI, US
Young Kim - Canton MI, US

International Classification:

F16D025/0638
F16D025/064

US Classification:

192/070120, 192/070140, 192/10700R, 192/10700M, 192/113360

Abstract:

A reaction plate for a transmission clutch pack includes first and second steel disks each having a contact surface facing the other of the two steel disks and having inner and outer peripheral edges. Each contact surface has grooves formed therein to carry cooling fluid from the inner peripheral edge to the outer peripheral edge to enhance cooling.

US Patent:

20080073133, Mar 27, 2008

Filed:

Sep 22, 2006

Appl. No.:

11/534329

Inventors:

Franz Winter - Mainz, DE
Reiner Essinger - Lauteral, DE
Thomas Vogel - Griesheim, DE
Michael J. Gorman - Pinckney MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI

International Classification:

B60L 11/18
H01M 8/02

US Classification:

180 653, 429 34

Abstract:

A power distribution unit for a vehicle includes a fuel cell stack, a bracket connected to the fuel cell stack and including at least one mount adapted to be connected directly to a vehicle to directly interconnect the fuel cell stack to the vehicle, a connection feature, and a traction system communicated with the fuel cell stack and carried by at least one of the fuel cell stack and the bracket with the connection feature disposed between the traction system and said at least one of the fuel cell stack and the bracket so that the traction system is indirectly connected to the vehicle. In one implementation, the connection feature includes an elastomeric pad disposed between a housing of the traction system and a mount or the vehicle frame. The pad provides a so-called “soft mount” of the traction system to the vehicle.

US Patent:

20080242211, Oct 2, 2008

Filed:

Mar 30, 2007

Appl. No.:

11/694376

Inventors:

Franz Winter - Mainz, DE
Andreas Koenekamp - Darmstadt, DE
Michael J. Gorman - Pinckney MI, US

International Classification:

B60H 1/26

US Classification:

454141, 454237

Abstract:

A method and apparatus are disclosed for a vehicle, the apparatus having a pulling ventilator, wherein the ventilator minimizes a temperature in a housing while minimizing a noise level in a passenger compartment of the vehicle.

US Patent:

51883740, Feb 23, 1993

Filed:

Jun 1, 1992

Appl. No.:

7/891073

Inventors:

Michael J. Gorman - Royal Oak MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16J 906

US Classification:

277 35

Abstract:

A seal for the rotating annular interface between a transmission input shaft and surrounding piston drum is uniquely configured as a single, integral part. A circular trough with two annular side walls is machined into the input shaft. The seal includes two annular side rings sized to contact the inside of the piston drum radially, and to contact the side walls of the trough axially. A bridging section joins the two side rails, and also preloads them into the trough side walls. Therefore, when hydraulic fluid is pumped between the side rails, it is prevented from leaking between the side rings and side walls and into the interface.