Mazda 3 since 2003
1. Operation and car maintenance
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.1.1. Mechanical part of engines
2.1.2. Mechanism of change of phases of a gazoraspredeleniye
2.1.3. Greasing system
2.1.4. Cooling system
2.1.5. Fuel system
2.1.5.1. General information
2.1.5.2. Admission system
2.1.5.3. The main features of an air line with variable characteristics (VAD) (L3)
2.1.5.4. Executive mechanism of system (VAD) (L3)
2.1.5.5. Electromagnetic valve of system (VAD) (L3)
2.1.5.6. Return valve of system (VAD) (L3)
2.1.5.7. Fuel knot
2.1.5.8. Block of the fuel pump
2.1.6. System of production of the fulfilled gases and system of decrease in toxicity
2.1.7. Electric equipment of engines
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.6. The Z6 engine – a mechanical part
2.7. Greasing system
2.8. Cooling system
2.9. Admission system
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. Ignition system
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








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2-1-5-3-osnovnye-osobennosti-vozdukhovoda-s-peremennymi-kharakteristikami-vad-l3.html

2.1.5.3. The main features of an air line with variable characteristics (VAD) (L3)

Fig. 2.57. Mazda 3 car VAD system with the L3 engine: 1–VAD system zaslonka; 2–the operating electromagnetic valve of VAD system; 3–vacuum chamber of VAD system; 4–return valve of VAD system


The control system of VAD opens a zaslonka in the case of the air filter at high frequencies of rotation of the engine for increase in an air stream. The system consists of a zaslonka, the electromagnetic valve of management, the vacuum chamber and the return valve. Usually, the core under the influence of a spring opens a zaslonka (fig. 2.57).

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2.1.5.2. Admission system
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2.1.5.4. Executive mechanism of system (VAD) (L3)