1
Mark F Mathias, Stephen A Grot: System and method for controlling the humidity level of a fuel cell. General Motors Corporation, Karl F Barr Jr, Linda M Deschere, April 23, 2002: US06376111 (72 worldwide citation)

A system for controlling the humidity level of a fuel cell is provided. The system includes a fuel cell, a humidifier for humidifying the fuel cell, and a controller for determining the humidity level of the fuel cell and controlling the humidifier in response to the determined humidity level. The r ...


2
Rodney L Borup, William H Pettit: Method for operating a combination partial oxidation and steam reforming fuel processor. General Motors Corporation, Karl F Barr Jr, Cary W Brooks, Linda M Deschere, February 18, 2003: US06521204 (59 worldwide citation)

In one aspect, the present invention provides a method for operating a fuel cell system. The system comprises a reactor having one or more catalytic beds and is fed a hydrocarbon fuel along with air and steam. Where more than one catalytic bed is present, such catalytic beds are preferably arranged ...


3
George R Woody, Martin Fasse, Peter Willimowski: Regenerative braking system for a batteriless fuel cell vehicle. General Motors Corporation, Karl F Barr Jr, Cary W Brooks, Linda M Deschere, December 3, 2002: US06488345 (59 worldwide citation)

A regenerative braking system and method for a batteriless fuel cell vehicle includes a fuel cell stack, a plurality of ancillary loads, and a regenerative braking device that is coupled to at least one wheel of the vehicle. The regenerative braking device powers ancillary loads when the vehicle is ...


4
Andreas Jauss: Internal combustion engine which can be operated with a choice of different fuels, especially for a motor vehicle drive system. General Motors Corporation, Karl F Barr Jr, January 25, 2005: US06845616 (58 worldwide citation)

The invention provides an internal combustion engine which can be run optionally on various fuels of different energy density, in particular for a motor vehicle drive, characterised in that the engine is equipped with a supercharging compressor which can be connected up when using a low-energy-densi ...


5
William H Pettit: Exhaust burner catalyst preheater. General Motors Corporation, Karl F Barr Jr, August 23, 1994: US05339630 (55 worldwide citation)

A burner for heating an exhaust gas stream is disclosed having a combustor head with a fuel/air charge preparation apparatus comprising a fuel nozzle and dual vortex atomizer. The charge preparation apparatus is mounted on one side of a base member or partitioning member having an outlet through whi ...


6
Jose M Lopez Crevillen, Surendra Singh, Arjun D Tuteja: Particulate trap system for an internal combustion engine. General Motors Corporation, Karl F Barr Jr, January 29, 1991: US04987738 (55 worldwide citation)

A particulate trap system for use in the exhaust system of an internal combustion engine has an exhaust conduit with a main branch, a bypass branch, and a diverter valve disposed therebetween for selectively diverting exhaust gas through one of the branches. A particulate filter is disposed within t ...


7
Alan W Hayman, Eric C Douse: Compact two-step rocker arm assembly. General Motors Corporation, Leslie C Hodges, Karl F Barr Jr, August 3, 2004: US06769387 (51 worldwide citation)

A rocker arm assembly includes an inner rocker arm and an outer rocker arm. The outer rocker arm includes two rail portions spaced a distance apart and forming an open space therebetween. The inner rocker arm is pivotably connected to the outer rocker arm such that it is at least partially within th ...


8
Bhaskar Sompalli, Hubert Gasteiger, Mark F Mathias, Michael Scozzafava: Methods of preparing membrane electrode assemblies. General Motors Corporation, Karl F Barr Jr, Cary W Brooks, Linda M Deschere, February 25, 2003: US06524736 (49 worldwide citation)

A method of making a membrane electrode assembly is provided. The method includes using a porous support to control the drying of the electrode, and the use of wettable and non-wettable solvents to control the seepage of ionomer into the porous support.


9
Jack Edward Elder: Composite molded butterfly valve for an internal combustion engine. Genral Motors Corporation, Karl F Barr Jr, February 10, 1998: US05715782 (47 worldwide citation)

A combustion air intake system for an internal combustion engine has an intake manifold which supplies intake air to the engine through pairs of differing length intake runners. A valve assembly is disposed between the intake runners and the engine and includes a molded composite housing having pair ...


10
Jeffrey A Rock: Stamped bipolar plate for PEM fuel cell stack. General Motors Corporation, Karl F Barr Jr, Cary W Brooks, Linda M Deschere, January 7, 2003: US06503653 (43 worldwide citation)

A bipolar plate assembly for a PEM fuel cell having a serpentine flow field formed on one side and an interdigitated flow field formed on the opposite side such that a single plate member is usable as an anode current collector and a cathode current collector of adjacent fuel cells. The bipolar plat ...