Vmac RAPTAIR-G30, Руководство по обслуживанию

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VMAC
– Vehicle Mounted Air Compressors
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66
Throttle Tube
A 1/4 in PTFE tube (shown in
“blue”) connects the 1/4 in fitting on the inlet
valve over to the discharge valve. A second 1/4 in PTFE tube connects
the discharge valve, the unloader valve and the throttle actuator via a tee
fitting (Figure 49).
Figure 49 - Throttle tube (Mounting plate removed for clarity)
Throttle Control
The engine rpm is controlled by the throttle actuator which is operated by
an air pressure signal from the unloader valve.
As the unloader valve activates and sends a signal to close the
mechanical discharge, air pressure travels from the unloader valve to the
throttle, signaling an increase in engine speed. As the air pressure
reaches 150psi, the unloader valve sends a signal to open the discharge
valve, closing the air intake poppet and allowing the throttle control to
reduce the engine speed accordingly.
Figure 50 - Throttle actuator