Fuel consumption indicating instrument

Measuring and testing – Internal combustion engine or related engine system or... – Compression

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G01F 900

Patent

active

042467780

ABSTRACT:
A system for indicating the fuel consumption rate of a vehicle, wherein there is provided a pressure responsive instrument for indicating consumption rate which is connected by a pressure conduit to the intake passage of the engine, is provided with a pressure transformer in the conduit. The transformer is responsive to the operating condition of the vehicle transmission, and operates when the transmission is in its next highest gear to convert the negative pressure of the engine intake passage to a lower value of negative pressure which is presented to the indicating instrument. The conversion is by a pressure ratio equal to the ratio of the highest transmission gear to the next highest gear.

REFERENCES:
patent: 3930408 (1976-01-01), Kadota
patent: 3977238 (1976-08-01), Byington, Jr.

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