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
2.1.2.1. System of change of phases of a gazoraspredeleniye
2.1.2.2. Design of the mechanism of change of phases of a gazoraspredeleniye
2.1.2.3. Main characteristics of operation of the mechanism of change of phases of a gazoraspredeleniye
2.1.2.4. Design of the mechanism of change of phases of a gazoraspredeleniye
2.1.2.5. The oil operating valve (OCV)
2.1.3. Greasing 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. 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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2.1.2. Mechanism of change of phases of a gazoraspredeleniye





Chart of the mechanism of phases of a gazoraspredeleniye
Fig. 2.29. Chart of the mechanism of phases of a gazoraspredeleniye: 1–torque; 2–speed of the engine; 3–it is not enough and the sredneoborotny engine; 4–high-speed engine; 5–the engine with the mechanism of change of phases of a gazoraspredeleniye


The mechanism of change of phases of a gazoraspredeleniye 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 a drive of inlet valves and a cranked shaft (fig. 2.29).

The chart of change of phases of a gazoraspredeleniye at various ranges of operation of the engine
Fig. 2.30. The chart of change of phases of a gazoraspredeleniye 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 a gazoraspredeleniye