Accession Number : ADD009960

Title :   Temperature Sensing Assembly.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Williams,Raymond L

Report Date : 16 Nov 1982

Pagination or Media Count : 10

Abstract : A temperature sensing assembly which continuously senses the temperature of a constituent stream, of a flow of a gaseous medium; and, as a result of such sensing, generates pneumatic servo-pressure to drive air valves, which control the flow of the constituent stream, to open and shut in accordance with specific requirements. The assembly includes: a temperature sensing subassembly that senses the temperature of the constituent stream of gaseous flow and that further includes a plurality of adjacent captively-held, bimetallic discs which contract or expand in accordance with preselected ranges of temperatures, and a co-acting spring-loaded ball valve subassembly; an air valve subassembly that selectively prevents the flow of a second constituent stream of the gaseous flow, in response to actuation of the temperature sensing subassembly; and, a conduit that interconnects the temperature sensing subassembly and the air valve assembly, and that conducts the constituent stream, when flowing, from the latter to the former and then overboard. (author)

Descriptors :   *Patents, *Gas turbines, *Temperature sensitive elements, *Servomechanisms, *Gas flow, *Control systems, Pneumatic devices, Air flow

Subject Categories : Electrical and Electronic Equipment
      Hydraulic and Pneumatic Equipment
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE