Yanmar EF-494T User Manual

3 ENGINE 3 ENGINE
EF494T TM 06/2011 edition
86
3.2 COMBUSTION SYSTEM
3.2.1 Low emission technology applied to
TNV engine
<Fuel injection technology>
(1) MP4 pump
 Atomization by high-pressure injection (70
MPa)
 Injection timing optimized by using a multi-
functional timer mechanism
<Fuel injection technology>
(2) New type nozzle
Increased number of nozzle hoes (5 nozzle holes)
Finer atomization by making the nozzle hole
diameter smaller
Uniform injection by rounding the edge of each
nozzle hole
(A) Nozzle for TNV engine
(R) Rounded inlet of nozzle hole

Yanmar EF-494T Specifications

General

Brand	Yanmar
Model	EF-494T
Category	Tractor
Language	English