1-M19
BX1800 · BX2200, WSM
ENGINE
[5] INJECTION NOZZLE
This nozzle is of a flat cut provided double throttle
type. This type of nozzle is designed to control the
injection quantity when the lift rate is low at start of the
injection, and to cut down on the knocking sound caused
by excessive fuel injection by giving the needle valve
section more taper than before to prevent the rapid
increase in the injection quantity when the initial injection
turns into the full-force injection.
Also, employed to prevent the injection quantity loss
in the throttle section caused by carbon, the flat cut
provided at the needle valve section helps the throttle
withstand long use and reduce as much knocking sound
as when it was new.
The heat seal is employed to improve the durability
and reliability of the nozzle.
The injection pressure is 13.73 to 14.71 MPa (140 to
150 kgf/cm
2
, 1991 to 2133 psi), and is adjusted with
adjusting washers (3).
W1018961
(1) Bar Filter
(2) Nozzle Holder Body
(3) Adjusting Washer
(4) Nozzle Spring
(5) Push Rod
(6) Retaining Nut
(7) Nozzle Body
(8) Needle Valve
(9) Heat Seal
(10) Gasket
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