Operation6735−1/A1
Winterthur Gas & Diesel Ltd.
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2. Operation
During usual operation conditions, scavenge air flows through the non-return
valve (15, Fig. 2) into the pressure space (PS). This pressure, and the pressure from
the compression spring (5), keep the piston (4) (and thus the waste gate valve) in the
closed position.
11
12
13
11
4
9
10
16
15
5
6
7
PS
1
8
2
VB
3
SP
19
18
14
1
SO
SA
16 8
9
PS
15
WCH00839
SP
19
Fig. 2: Waste Gate Valve and Control Diagram
1 Scavenge air receiver 14 Test connection (SA)
2 Silencer 15 Non-return valve
3 Valve housing 16 Non-return valve
4 Piston 17 Temperature sensor (TE3991C)
5 Compression spring 18 Air suction duct to turbocharger
6 Adjustment screw (piston stroke) 19 Locknut
7 Locknut
8 Solenoid valve
9 Pressure reducing valve PS Pressure space
10 Cover SP Pressure space (scavenge air pressure)
11 Scavenge air pipe VB Vent bore
12 Adjustment screw (pressure) SO Scavenge air outlet (silencer)
13 Test connection (valve) SA Scavenge air
2017−08
Scavenge Air Waste Gate
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