Fuel injection nozzle

Details Fuel injection nozzle Fuel injection nozzle

1997-12-29

1999-11-09

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395811, 2395851, F02M 6118

Patent

active

059798025

ABSTRACT:
In a variable nozzle hole area type fuel injection nozzle using a rotary valve a drive arrangement of the rotary valve (7) comprises an actuator (9) mounted to the nozzle holder proper and a drive shaft (8) extending through an axial hole (43a) of the needle valve (4) and having its lower end reaching the vicinity of the lower end of the needle valve (4) and a coupling shaft (10) positioned inside a control hole (45) provided in the lower end of the needle valve (4) and as well as performing a torque transmitting function the coupling shaft (10) has a leak passage (10f) and a seat portion (10c) so that it can perform a valve function for controlling termination of a pilot injection and separately from the actuator there is provided a driving mechanism (14) for forcibly moving the coupling shaft (10) in the axial direction while the needle valve (4) is open to end the action of the seat portion (10c).

REFERENCES:
patent: 4151958 (1979-05-01), Hofmann
patent: 4658824 (1987-04-01), Scheibe
patent: 5645225 (1997-07-01), Hasagawa et al.

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