Gas turbine access port plug electrostatic probe

Details Gas turbine access port plug electrostatic probe Gas turbine access port plug electrostatic probe

1982-12-28

1986-05-27

Karlsen, Ernest F.

Electricity: measuring and testing

Using ionization effects

For analysis of gas, vapor, or particles of matter

324 725, 324457, 340627, G01N 2762

Patent

active

045917949

ABSTRACT:
An electrostatic probe (27) includes seals (47, 54) adapted to engage sealing surfaces of a borescope access hole provided in the inner and outer walls (24, 25) of the fan duct (22) of a gas turbine engine. The probe includes a center conductor (60), the exposed proximal end of which (31) forms an electrode tip, insulated (35, 36) from an outer metallic wall structure (38, 66), the conductor and wall structure terminating in a coaxial connector 64. A latch means (34, 58) cooperates with a lock pin (76) in one of the fan duct walls.

REFERENCES:
patent: 3447071 (1969-05-01), Webb
patent: 3775763 (1973-11-01), Couch et al.
Couch, R. P., "Detecting Abnormal Turbine Engine Deterioration using Electrostatic Methods", Journal of Aircraft, vol. 15, No. 10, Oct. 1978, pp. 692-695.

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