Multi-stage fluid power turbine for a fire extinguisher

Details Multi-stage fluid power turbine for a fire extinguisher Multi-stage fluid power turbine for a fire extinguisher

2007-12-11

2007-12-11

Shaver, Kevin (Department: 3752)

Fire extinguishers

Special applications

With specific extinguishant applying means, or means for...

C169S014000, C169S054000, C169S015000, C169S052000, C239S014100, C239S014200, C239S380000

Reexamination Certificate

active

11439156

ABSTRACT:
A multi-stage fluid power turbine having application as a fire extinguisher to be ideally carried by a fire truck (e.g., a tanker or a pumper) so as to fight outdoor fires. An impeller and a propeller are located at one end of the fire extinguisher, and a fan is located at the opposite end. The propeller and the fan are mounted on a common inner shaft so as to rotate in a first direction. The impeller is mounted on a hollow outer shaft or tube that surrounds the inner shaft. The impeller includes a plurality of curved blades, each of which having a fluid duct running therethrough. Water under pressure being supplied from a source to the impeller blades is ejected from the fluid ducts thereof and thrust against the blades of the propeller, whereby to impart a rotational force to the propeller and a corresponding rotational force to the fan. The water ejected from the curved impeller blades causes the impeller to rotate in an opposite direction. Accordingly, the propeller breaks up the supply of water ejected from the impeller blades so that a high humidity air and water spray is blown by the fan at high velocity and pressure towards the fire to be extinguished.

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