Abstract: A ride on/ride off dirt bike stand for use with dirt bikes that do not come with a kickstand attached to the dirt bike for parking the dirt bike when not in use, such as motocross, rally, trials and/or track bikes. The dirt bike stand is free standing and includes an upper frame pivotally connected to a base frame, such that the upper frame may be pivoted and secured between an upright position and a lowered position. The upper frame may be height adjustable so that the dirt bike stand may be utilized with different dirt bikes having differing chassis heights. Also, the upper frame may include a rotatable platform to provide a greater surface area for supporting the dirt bike.

Abstract: A system includes a fuel cell that has an anode chamber that is in a deadheaded configuration. A controller of the system controls a valve that is connected to the anode chamber pursuant to a modulation scheme to purge the anode chamber.

Abstract: A technique includes preventing corrosion during one of start up and shut down of a fuel cell. The corrosion prevention includes controlling a load on the fuel cell during the start up/shut down to regulate a voltage of the fuel cell.

Abstract: This application relates to cast enclosures for battery replacement applications, such as enclosures configured to house power units comprising a fuel cell and an energy storage device. The enclosures function as protective enclosures and counterweights, provide mounting points and conduits for gases, fluids, plumbing and wiring, and serve as thermal energy storage/transfer devices. The enclosures are formed in a mold or die and comprise wall portions defining a plurality of internal subcompartments for receiving the various system components. In one embodiment of the invention channels may be formed in the wall portions of the enclosures for circulating a heat transfer fluid therethrough.