摘要:
A fuel cell system includes a fuel cell assembly medium and at least one centrifugal blower system for providing a flow of gaseous medium to the fuel cell assembly.
摘要:
A centrifugal blower system includes: a) a series of blower units, each blower unit in the series comprising a casing having an axial inlet and a radial outlet, an impeller disposed within the casing for drawing a gaseous medium at a first pressure into the inlet and expelling gaseous medium at a second higher pressure through the outlet and a motor for driving the impeller; and, b) a duct connecting the outlet of at least one blower unit in the series with the inlet of at least one other blower unit in the series.
摘要:
A flasher controller for vehicle warning lights that comprises a housing for a circuit board that electrically controls the device. The apparatus includes a mounting strap of conductive material which includes an internal ground connection with the circuit board and a mounting flange external of the housing that functions as the external ground connection for the circuit board. The housing is filled with a resinous material that functions as a weatherproof seal, as well as means for securing the mounting strap to the housing. The device is adapted to automatically sequentially operate and flash either amber or red warning lights on the vehicle in accordance with a plurality of selectable programs. The control functions are effected entirely by solid state electrical components which are potted together with the mounting strap.
摘要:
A flasher for vehicle lights that comprises a housing for a circuit board that electrically controls the device. The apparatus includes a mounting strap of conductive material which includes an internal ground connection with the circuit board and on a mounting flange external of the housing that functions as the external ground connection for the circuit board. The housing is filled with a resinous material that functions as a weather-proof seal, as well as means for securing the mounting strap to the housing. The apparatus is further characterized by a secondary housing for an electrical component that communicates with the main housing and which is secured thereto and sealed by the resinous material.