Kubota V3600-E3 Shop Manual page 90

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM
(C) Mechanical EGR Valve
(D) Reed Valve
Mechanical EGR valve controls the flow of cooled
EGR gas to the intake manifold.
If the boost pressure is low, EGR valve is closed, so
cooled EGR gas does not flow to the intake manifold.
If the boost pressure is getting higher, EGR valve is
opening and cooled EGR gas is flowing to the intake
manifold.
(1) Mechanical EGR Valve
(2) EGR Valve Lift
(3) Boost Pressure
The reed valve is provided at the confluence of
exhaust gas after passing the EGR valve, and intake air.
It operates by the pressure difference between inside of
the crankcase and the atmosphere, and prevents back
flow of the mixture of exhaust gas and intake air
generated by the piston and valves. It is used as the
secondary air
countermeasure against exhaust gas of four-cycle
engines.
(1) Valve
(2) Case
M-29
DIESEL ENGINE
(a) Boost Pressure From Intake
Manifold
(b) Cooled EGR Gas
(c) Cooled EGR Gas To The
Intake Manifold
(d) Open
(e) Close
introduction device
(3) Stopper
(4) Screw
W1176088
for the
W1176594