Gm Global Technolgoy Operations, Inc.

James W Dandalides

David A Young

Robert Metzenmacher

William Henry Pettit

John P Salvador

Victor W Logan

William S Wheat

Ronald J Daum

A fuel cell powered vehicle fuel storage system is disclosed having a suspension system, a fuel tank, and a support system, wherein the suspension system, fuel tank, and support system cooperate to carry vehicle structural loads and the reaction loads of the suspension system and to maximize a volume of the fuel tank.

Rear integration of a suspension system and fuel tanks in fuel cell vehicles

A fuel cell powered vehicle is disclosed having a fuel tank, wherein the fuel tank is disposed on an undercarriage of the vehicle and has a substantially conical shape to militate against interference with a function of a suspension system of the vehicle.

Conical shaped fuel storage tank

A switching system and control method therefor are provided and implemented with a fuel cell stack system. The switching system enables fuel cell stacks to be connected in series for providing power to a power user while removing the particular disadvantages of a series circuit. In the event of a stack fault, the faulty stack may be bypassed, whereby the remaining stacks provide power to the power user at reduced capacity. The stack is continuously monitored and is reintroduced to the series circuit if the fault clears. If the fault reoccurs a predetermined number of times after the stack has been reintroduced, a 'reduced capacity' mode is initiated. Additionally, in the event of a reduced or an increased current demand, stacks are selectively switched in and out of the series connection, for limiting the overall operation voltage range of the fuel cell stack system.

System stack contingency and efficiency switching

A fuel cell system having a dynamically controlled pressure regulator for varying the backpressure on the system under varying ambient temperatures and pressures.

Fuel cell having dynamically regulated backpressure

Described is a method of conditioning a gas stream comprising passing the gas stream into a vessel which contains a rotating enclosure and which contains an apparatus to rotate the enclosure, which enclosure is pressure sealed from the surrounding atmosphere and which is divided into a plurality of modulating zones ; treating the gas to modify its properties within the enclosures due to the presence of modulating materials within the zones in the enclosure; and passing the modified gas to an outlet of the vessel. Also described is an apparatus for conditioning a plurality of gas streams.

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Macomb, MI, United States of America

James W Dandalides