Kubota D1803-CR-E4 - Function of Intake Throttle Valve; Intake Throttle Valve; Outline of Intake Throttle Valve; Specification of Intake Throttle Valve

9.13 Intake throttle valve
9.13.1 Outline of intake throttle valve
The intake throttle valve adjusts the intake air flow
amount.
9.13.2 Structure of intake throttle valve
The intake throttle valve is made up of a valve, motor,
and gear and the like.
(1) Intake throttle valve
(2) Motor
(3) Valve
(4) Gear
Circuit diagram
(5) Motor
(6) Hall IC
(7)
Intake throttle valve
(A) Motor1
(B) Motor2
(C) Ground
(D) Output signal (TPS)
(E) Power supply (+5 V)
9.13.3 Function of intake throttle valve
The intake throttle valve adjusts the intake air flow
amount.
Wide open
throttle state is maintained during normal
operation.
The engine ECU changes the amount the intake
throttle valve is open during DPF regeneration control,
raising the exhaust gas temperature.
9.13.4 Specification of intake throttle valve
Motor rated voltage 12 V
Voltage applied polarity and valve rotating direction
Shaft rotating direction
Voltage applied polarity
M1 M2
Valve opening direction + －
Valve closing direction － +
4. ENGINE
MECHANISM
9. Aftertreatment system
4-84
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A