The valvate mechanism – general information. Mazda 3 (since 2003 release)
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
2.1.1.1. Cover of a head of the block of cylinders
2.1.1.2. Head of the block of cylinders
2.1.1.3. Laying of a head of the block of cylinders
2.1.1.4. Block of cylinders
2.1.1.5. Bent shaft and radical bearing
2.1.1.6. Balancing block
2.1.1.7. Principle of operation of the balancing block
2.1.1.8. Damper of tortional fluctuations of a bent shaft
2.1.1.9. Forward cover of the engine
2.1.1.10. Piston
2.1.1.11. Piston rings and piston finger
2.1.1.12. Rod and conrod bearing
2.1.1.13. The valvate mechanism – general information
2.1.1.14. Camshaft
2.1.1.15. Camshaft asterisk
2.1.1.16. Asterisk of a bent shaft
2.1.1.17. Gas distribution mechanism drive chain
2.1.1.18. Natyazhitel of a gas distribution mechanism drive chain
2.1.1.19. The valve, a valvate spring, a maslootrazhatelny cap, the directing valve plug
2.1.1.20. Valve pusher
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
2.1.6. 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
 








2-1-1-13-klapannyjj-mekhanizm-obshhie-svedeniya.html

2.1.1.13. The valvate mechanism – general information

Fig. 2.20. Valvate mechanism of engines of the Mazda 3 car: 1 – cam-shaft; 2 – gas distribution mechanism drive chain; 3 – camshaft asterisk; 4 – lever of a natyazhitel; 5 – natyazhitel of a chain; 6 – pulley of a bent shaft; 7 – sending to a chain; 8 – valvate knot; 9 – cam; 10 – the oil operating valve (OCV); 11 – executive mechanism of system of change of phases of gas distribution


Each cylinder has two inlet and two final channels. 16 valves are directly put in action by two cam-shafts. On engines of the L3 model the mechanism of change of phases of gas distribution which provides the best moment of opening or closing of valves is used, depending on traffic conditions constantly changing phases of a cam-shaft of inlet channels (fig. 2.20).


Fig. 2.21. Chart of opening and closing of the valve of engines of the Mazda 3 car: 1 – VMT; 2 – variable area; 3 – release; 4 – admission; 5 – NMT



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2.1.1.12. Rod and conrod bearing
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2.1.1.14. Camshaft




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