Method and apparatus for checking engine performance

Details Method and apparatus for checking engine performance Method and apparatus for checking engine performance

1971-04-19

1978-12-12

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

364442, G01M 1500

Patent

active

041290348

ABSTRACT:
Brake horsepower of an internal combustion engine is determined rapidly and without necessarily removing the engine from a vehicle or other work installation and without requiring a complex test installation such as a dynamometer. It has been found that the power output of an engine at a specific engine speed and constant load, is a function of the rate of fuel consumption by the engine provided that certain readily detectable engine malfunctions are absent. A compact instrument, preferably using digital circuits to provide a horsepower readout, is coupled to the engine through a digitizing flow meter disposed in the engine fuel line and through a digitizing tachometer coupled to a rotating element of the engine, the instrument also having means connected to the engine to assure that readings are taken only under substantially constant load conditions.

REFERENCES:
patent: 2685198 (1954-08-01), Saul, Sr.
patent: 3118302 (1964-01-01), Fathauer
patent: 3347092 (1967-10-01), Stutson
patent: 3722265 (1973-03-01), Metz et al.

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