Two-dimensional, unilateral oblique shock diffuser as the air in

Details Two-dimensional, unilateral oblique shock diffuser as the air in Two-dimensional, unilateral oblique shock diffuser as the air in

1981-02-24

1983-12-06

Bentley, Stephen C.

Fluid handling

Processes

Cleaning, repairing, or assembling

244 53B, F02C 7042

Patent

active

044187084

ABSTRACT:
A two-dimensional, unidirectional oblique air impact diffuser is used as an air inlet for a gas turbine jet engine for aircraft. The air inlet includes an upper rigid air inlet ramp and an air inlet bottom spaced below the ramp. An air scoop lip is pivotally attached to the air inlet bottom so that it can be pivoted from a standard setting point downwardly away from the air inlet ramp and also from the standard setting point toward the ramp. The pivotal displacement of the air scoop lip is a function of the aircraft angle of attack and the flight Mach number. The angular displacement of the air scoop lip from the standard setting point increases downwardly as the aircraft angle of attack increases and decreases as the Mach number increases.

REFERENCES:
patent: 3027118 (1962-03-01), Willox
patent: 3141300 (1964-07-01), Turcat
patent: 3186661 (1965-06-01), Denning et al.
Pratt & Whitney Aircraf, the Aircraft Gas Turbine Engine and its Operation, ay 1974, pp. 59-60.

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