Engine power output measuring instrument

Details Engine power output measuring instrument Engine power output measuring instrument

1975-09-29

1976-08-24

Myracle, Jerry W.

Measuring and testing

Vehicle chassis

Steering

73114, G01M 1500

Patent

active

039759520

ABSTRACT:
A special-purpose computer instrument is coupled to an engine through a digitizing flow meter which measures fuel consumption, a digitizing tachometer which detects engine speed and a device for signaling if the load on the engine should vary. Utilizing this electrical input data, the instrument calculates and displays engine power output by multiplying the known Specific Fuel Consumption factor (e.g., pounds of fuel per brake horsepower per hour) for the particular engine model by the time required to consume a predetermined quantity of fuel and by correction factors for units and fuel density if necessary. To minimize test time and to simplify test operations, the instrument performs computations other than division by measured test time prior to completion of the fuel consumption time measurement and then senses completion of the time measurement and automatically performs the final portion of the computation. The instrument may also display engine RPM.

REFERENCES:
patent: 3722265 (1973-03-01), Metz et al.
patent: 3802256 (1974-04-01), Formwalt
patent: 3890832 (1975-06-01), Nick et al.

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