Accession Number : ADD013703

Title :   Unitized High Temperature Probes.

Descriptive Note : Patent, Filed 3 Jul 86, patented 29 Mar 88,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Komanetsky, Frederick J ; Selstad, John A

Report Date : 29 Mar 1988

Pagination or Media Count : 7

Abstract : A unitized static sensor probe for a gas turbine engine, machined from a single piece of raw material. The probe preferably has integral kiel cups that form a part of the probe airfoil. The probe is manufactured by electrical discharge machining, and is shaped with an airfoil that minimizes disruption of the engine airstream. Integral air seal platforms and a mounting plate are also provided. The invention comprises a single piece metallic probe manufactured from high temperature material. The probe has integral kiel heads for static instrumentation and is formed in an airfoil shape that minimizes its negative effects on the engine flow stream. In the preferred embodiment of the invention the probe is manufactured by electrical discharge machining from a single piece of stock material. Other aspects of the preferred embodiment of the invention comprise an integral platform for attachment of the probe to an engine housing and static sensors mounted in integral kiel heads positioned on the leading edge of the probe airfoil. It is also preferred that the probe the manufactured from a high temperature material such as an inconel nickel alloy. In an alternate embodiment of the invention the probe body may be manufactured by a casting method such as powdered metallurgy and finished machined by electrical discharge machining.

Descriptors :   *AIR FLOW, *GAS TURBINES, *PROBES, *PATENTS, AIR, AIRFOILS, ATTACHMENT, CASTING, DETECTORS, ELECTRIC DISCHARGES, GAS SEALS, HIGH TEMPERATURE, HOUSING(DWELLINGS), INSTRUMENTATION, LEADING EDGES, MACHINING, MATERIALS, METALS, NICKEL ALLOY INCONEL, NICKEL ALLOYS, PACKAGING, PLATFORMS, POWDER METALLURGY, SHAPE, STATICS, STREAMS

Subject Categories : Test Facilities, Equipment and Methods
      Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE