Thrust correlated engine pressure ratio indicator and method for

Details Thrust correlated engine pressure ratio indicator and method for Thrust correlated engine pressure ratio indicator and method for

1975-12-29

1977-01-18

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

73407PR, G01M 1500

Patent

active

040032493

ABSTRACT:
A pneumatic computing device is disclosed for use with turbofan engines having mixer-type nozzles, in which both turbine and fan discharge pressures are tapped and pneumatically combined to derive a pressure equal to a weighted average thereof for application along with engine inlet pressure to a ratio-taking computing indicator instrument that registers an engine pressure ratio (EPR) from which the level of thrust developed by the engine can be accurately determined.

REFERENCES:
patent: 3310666 (1967-03-01), Millar et al.
patent: 3837220 (1974-09-01), McDonald et al.
patent: 3927307 (1975-12-01), Reschak

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