Method and apparatus for measuring injection amount of fuel inje

Details Method and apparatus for measuring injection amount of fuel inje Method and apparatus for measuring injection amount of fuel inje

1982-11-03

1984-12-18

Myracle, Jerry W.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

G01M 1500

Patent

active

044884290

ABSTRACT:
A cylinder connects a measuring chamber filled with fuel to a gas pressure chamber set at a constant pressure maintained by a gas pressure device. A displacement member in the form of a piston separates the gas pressure chamber from the measuring chamber. A fuel injector is mounted to communicate with the measuring chamber. A displacement sensor is disposed inside the gas pressure chamber and has a contact member of free-dropping type which contacts with the top surface of the displacement member. A displacement signal from the displacement sensor representing the amount of displacement of the displacement member is supplied to an arithmetic operation unit. A control circuit controls the injection operation of the fuel injector, and supplies a command to the arithmetic operation unit to calculate the injection amount from the amount of displacement.

REFERENCES:
patent: 4088012 (1978-05-01), Emerson
patent: 4266426 (1981-05-01), Gandini

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