Fuel consumption rate indicating system for a vehicle

Details Fuel consumption rate indicating system for a vehicle Fuel consumption rate indicating system for a vehicle

1977-10-19

1979-04-17

Morrison, Malcolm A.

Boots, shoes, and leggings

73114, 123139AT, 235 61J, 235 92FL, G01M 1500, G01F 900, G01L 326

Patent

active

041504313

ABSTRACT:
This disclosure deals with a system for indicating to the driver of a vehicle a figure which represents the operating efficiency of the vehicle and which is derived from the fuel consumed and the distance traveled by the vehicle. The system measures the speed of the vehicle and a characteristic of the fuel supply system of the engine which is indicative of the fuel consumption. These two factors are combined in a dividing circuit which produces a signal that is fed to an indicator for displaying the figure to the operator of the vehicle. The vehicle engine has a fuel supply system including injectors and a fuel pressure regulating apparatus. The total fuel flowing to the injectors is divided into a burned flow portion and a return flow portion, and the burned flow portion is a relatively fixed ratio of the total flow. The characteristic of the supply system which is sensed is the total flow, and because of the fixed ratio, it is indicative of the fuel consumption rate.

REFERENCES:
patent: 2749897 (1956-06-01), Reiners
patent: 3159152 (1964-12-01), Reiners
patent: 3351288 (1967-11-01), Perr
patent: 3921444 (1975-11-01), Taira et al.
patent: 3927305 (1975-12-01), Gruhl
patent: 3967097 (1976-06-01), Moretti
patent: 3972224 (1976-08-01), Ingram
patent: 3983372 (1976-09-01), Klaver
patent: 3987671 (1976-10-01), Monaghan
patent: 3998094 (1976-12-01), Martin
patent: 4012949 (1977-03-01), Lanz
patent: 4020683 (1977-05-01), Young
patent: 4061023 (1977-12-01), Kuno et al.

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