Multiple Displacement Solenoid - Operation

OPERATION

Cylinder Deactivation

- Trap an exhaust charge from a normal combustion event
- Normal combustion event
- Deactivate the exhaust valve
- Deactivate the intake valve
- Piston is an air spring
- Cylinders deactivated in firing sequence

Cylinder Reactivation

- Normal combustion event
- Activate the exhaust valve
- Activate the intake valve
- Empty the cylinder
- Cylinders reactivated in firing sequence