Test apparatus for measuring jet engine thrust

Details Test apparatus for measuring jet engine thrust Test apparatus for measuring jet engine thrust

1987-03-03

1988-12-06

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

047888555

ABSTRACT:
Apparatus for simultaneously measuring the torque generated by a bladed turbofan engine as well as the forward force generated by gases exhausted from the turbofan engine in order to calculate total thrust. The apparatus includes a cradle for suspending the engine. A load cell connected between the cradle and a rigid structure measures the force generated by gases exhausted from the engine. The rotational torque generated by rotating bladed fan sections of the engine are measured by individual dynamometers. The dynamometers are connected to the fan sections by endless belts which are engaged to geared cowlings mounted to the fan sections in place of the blades and fan section cowlings. Each endless belt is also engaged to a rotatable gear member of the dynamometer so as to transmit the generated torque between the fan section and the dynamometer.

REFERENCES:
patent: 3210991 (1965-10-01), Weekley
patent: 4176547 (1979-12-01), McClure et al.

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