It is an intake manifold of modular length controlled by the injection control unit that allows volumetric efficiency to be increased and thereby:- optimize torque delivery at low/medium speeds- increase power at high speedsThe manifold consists of:- two nylon halves- an internal rocker duct- a vacuum accumulator formed inside the manifolda modular intake device control actuator with built-in three-way control solenoid.
Operation
The injection control unit controls a three-way solenoid (1) that puts the vacuum accumulator (2) in communication with the pneumatic actuator (3), which allows the rocker duct (4) to move via two linkages.When the swinging duct rotates, the ducts can take up the following configurations:short power ducts at speeds above 5500 rpm.
- long torque ducts at speeds between 2800 and 5500 rpm
Switching device control actuator enablement solenoid valve
This is a three-way solenoid built into the pneumatic actuator controlling the variable geometry chamber and it is controlled by the injection control unit.Its function is to allow the vacuum present in the vacuum reservoir (inside the intake chamber) to act on the pneumatic actuator controlling the rocker duct.
1, Switching device control actuator enablement solenoid valve2, Modular intake control actuator3, Vacuum intake pipe4, Atmospheric pressure air intake
