Pressure responsive fuel injector actuated by pump

Details Pressure responsive fuel injector actuated by pump Pressure responsive fuel injector actuated by pump

1984-06-11

1986-04-01

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239102, F02M 4702

Patent

active

045792836

ABSTRACT:
A fuel injector for an internal combustion engine, the injector being actuated by a piezoelectric actuator. The piezoelectric actuator operates a piston, which changes the volume of a pump chamber formed between the piston and a nozzle needle. The nozzle needle moves up and down in response to a pressure in the pump chamber to open and close a port for injecting fuel. The piston is pressed toward the pump chamber by a fluidic force or a spring force and so on.

REFERENCES:
patent: 1843410 (1929-08-01), Von Salis
patent: 2173811 (1939-09-01), Bischof
patent: 2397136 (1944-05-01), French
patent: 2985378 (1961-05-01), Falberg
patent: 3115304 (1963-12-01), Humphries
patent: 3194162 (1965-07-01), Williams
patent: 3418980 (1968-12-01), Benson
patent: 3976249 (1976-08-01), Jarret
patent: 4082481 (1978-04-01), Fenne
patent: 4463725 (1984-08-01), Lauter et al.
patent: 4471740 (1984-09-01), Jourde et al.

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