Accession Number : ADD000957

Title :   High Overspeed Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Kast,Howard B

Report Date : 07 Aug 1973

Pagination or Media Count : 4

Abstract : The patent relates to an apparatus which senses an overspeed condition of a high speed shaft, of a turbine for example. There is no wearing moving part unless the shaft overspeeds. Then one pivoted part or arm moves a very small degree carrying a cup-shaped reflector into the path of a small jet of fluid. This reflector cup reflects the jet stream to a receiver hole and conduit. The conduit leads off to apparatus which shuts off the engine or reduces the power input until the shaft speed is reduced below the overspeed limit.

Descriptors :   *Speed regulators, *Patents, Drive shafts, Detectors, Jet flow, Centrifugal force

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE