Measuring and testing – Brake testing – Single wheel rotating and resistance measuring means
Patent
1977-11-14
1979-12-04
Ruehl, Charles A.
Measuring and testing
Brake testing
Single wheel rotating and resistance measuring means
G01L 302
Patent
active
041765478
ABSTRACT:
A torque correlation ring is disclosed which forms a part of a test stand useful in measuring performance of aircraft turboshaft engines. The torque ring assembly comprises two annular rings separated from each other by four short equally spaced beams. One of the annular rings is fixedly attached to the frame of the test stand. The engine casing is attached to the second ring. Attachment is such that the engine is axially suspended within the annular rings with the propeller shaft on one side and the turbine exhaust on the other. Torque reaction forces on the engine casing stemming from supplying power to a propeller will be passed from the second annular ring to the frame mounted, first annular ring via the four beams. The magnitude of this torque is measured by means of strain gages mounted on each of the four beams. The electrically combined signal from the strain gages represent an accurate measurement of the torque forces being supplied to the propeller by the engine under test.
REFERENCES:
patent: 2385005 (1945-09-01), Langer
patent: 2845795 (1958-08-01), Emmerling
patent: 3595074 (1971-07-01), Johnson
Hudson George S.
McClure John W.
Avco Corporation
Garfinkle Irwin P.
Gelling Ralph D.
McNair, Jr. Robert J.
Ruehl Charles A.
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