H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/230
H01H 33/78 (2006.01) H01H 33/91 (2006.01)
Patent
CA 1077549
NOZZLE-TYPE COMPRESSED-GAS CIRCUIT- INTERRUPTER HAVING GAS-INLET ORIFICES ABSTRACT OF THE DISCLOSURE An improved nozzle-type compressed-gas circuit- interrupter is provided, either of the puffer-type, involving relative piston-and-cylinder motion to produce gas pressure, or, alternatively, using a high-pressure gas-reservoir source for injecting gas through a nozzle, whereby improved and advantageously-located gas-inlet orifice structures are associated with the said nozzle, so that gas may be injected into the arc at a plurality of inwardly-directed orifice openings provided in the nozzle structure itself. Preferably, some of the gas-inlet orifices are directed downstream of the orifice constriction region so that the gas-inlet passages, or orifices direct a plurality of relatively cold gas jets inwardly into the established arc adjacent its downstream portion located within the insulating nozzle structure. In one embodiment of the invention, the nozzle structure is movable, being attached to a movable operating gas-compression cylinder, which slides relatively over a stationary piston structure and compresses gas therebetween. In another embodiment of the invention, instead of using a piston-and-cylinder gas-compression arrangement, gas may be supplied from an outside high-pressure gas-reservoir chamber, as well known by those skilled in the art of compressed-gas circuit interruption.
272483
Cromer Charles F.
Yoon Kue H.
Cromer Charles F.
Westinghouse Electric Corporation
Yoon Kue H.
LandOfFree
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