Air Pump Switchover Valve, Function

Air Pump Switchover Valve, Function




1 Air admission
2 Vacuum supply from intake manifold
3 Connection to aspirator shutoff valve
a Armature plate
b Restoring spring
c Housing
d Solenoid (coil)
e Electrical connection
f Rubber seal

When actuating, the anchor plate (a) is pulled by the solenoid (d) and the sealing rubber (f) closes the aeration. The connection between port 2 and port 3 is opened. So that the vacuum from the intake manifold is built up to the aspirator shutoff valve. In the de-energized state the connection between port 1 and port 3 is re-established and air is thus admitted to port 3.




1 Air admission
2 Vacuum supply from intake manifold
3 Connection to the aspirator shutoff valve