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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2-1-5-2-sistema-vpuska.html

2.1.5.2. Admission system

Functions, design and work of system of an admission of Mazda 3 (GG) with L3, LF and L8 engines same, as well as on the FS engine of modern model 323 (BJ), except for the following:
– for maintainability improvement the throttle branch pipe of AAS is not used.
– the inlet collector is made of plastic for weight reduction.
– the air line system with variable characteristics (VAD) is used for improvement of characteristics of the engine.

Fig. 2.56. System of an admission of the Mazda 3 car: 1–air filter; 2–idling regulator; 3–resonant chamber; 4–the operating electromagnetic valve of VIS system (L3); 5–the operating electromagnetic Variable tumble valve; 6–engines L8, LF; 7–inlet collector; 8–executive mechanism of a zaslonka of VIS system (L3); 9–executive mechanism of a zaslonka of VTCS system; 10-return valve of VAD system (L3); 11-pedal of management of supply of fuel (R.H.D); 12-accelerator rope (R. H. D); 13-pedal of management of supply of fuel (L.H.D); 14-rope of an accelerator (L.H.D); 15-zaslonka of VAD system (L3); 16-the operating electromagnetic valve of VAD system (L3)


– the admission system with variable characteristics (VIS) is used. This system is similar to VICS system of modern model 323 (BJ) with the FS engine.


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