CONSTRUCTION
Each air pump assembly consists of a DC motor, an impeller and an air filter.
The air pump assembly supplies air into an air injection control valve using its impeller.
A heater is provided to prevent operation faults in cold conditions.
| *A | Models with Air pump heater | ||
| *1 | Impeller | *2 | Heater |
| *3 | DC Motor | - | - |
| *a | Air Pump Assembly Cross Section | *b | To Air Switching Valve Assembly |
| *c | From Air Inlet | - | - |