Mazda 3 since 2003
1. Operation and maintenance of the car
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 gas distribution
2.1.3. Lubrication system
2.1.4. Cooling system
2.1.5. Fuel system
2.1.5.1. General information
2.1.5.2. System of an admission
2.1.5.3. The main features of an air duct 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. Backpressure 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. Lubrication system
2.8. Cooling system
2.9. System of an admission
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. System of ignition
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








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

2.1.5.2. System of an admission

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 reduction of weight.
– the system of an air duct 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 camera; 4 – the operating electromagnetic valve of the VIS (L3) system; 5 – the operating electromagnetic Variable tumble valve; 6 – L8, LF engines; 7 – inlet collector; 8 – executive mechanism of the gate of the VIS (L3) system; 9 – executive mechanism of the gate of the VTCS system; 10 – backpressure valve of the VAD (L3) system; 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 – gate of the VAD (L3) system; 16 – the operating electromagnetic valve of the VAD (L3) system


– the system of an admission with variable characteristics (VIS) is used. This system is similar to the 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 duct with variable characteristics (VAD) (L3)




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