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
2.1.2.1. System of change of phases of gas distribution
2.1.2.2. Design of the mechanism of change of phases of gas distribution
2.1.2.3. Main characteristics of operation of the mechanism of change of phases of gas distribution
2.1.2.4. Design of the mechanism of change of phases of gas distribution
2.1.2.5. The oil operating valve (OCV)
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
 








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2.1.2. Mechanism of change of phases of gas distribution





Диаграмма механизма фаз газораспределения
Fig. 2.29. Chart of the mechanism of phases of gas distribution: 1 – torque; 2 – engine speed; 3 – it is not enough also the sredneoborotny engine; 4 – high-speed engine; 5 – the engine with the mechanism of change of phases of gas distribution


The mechanism of change of phases of gas distribution provides the optimum moment of opening and closing of valves according to operating conditions of the engine by continuous change of phases of a cam-shaft of the drive of inlet valves and a bent shaft (fig. 2.29).

Диаграмма изменения фаз газораспределения при различных диапазонах работы двигателя
Fig. 2.30. The chart of change of phases of gas distribution at various ranges of operation of the engine: 1 – loading; 2 – frequency of rotation of the engine; 3 – idling range; 4 – range of small loadings; 5 – range of average loadings; 6 – range of big loadings of small and average speeds; 7 – range of big loadings and high speeds; 8 – work at full loading




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2.1.2.1. System of change of phases of gas distribution