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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2.1.5.8. Block of the fuel pump

Fig. 2.62. Fuel pump: 1–block of the fuel pump; 2–sensor of the index of level of fuel


Because on the car the system irrevocably fuels in a tank, the block of the fuel pump, except for the sensor of the index of level of fuel is used, is integrated. To prevent engine capacity reduction because of an insufficient toplivosnabzheniye, for example, when the vehicle turns, the fuel pump was developed so that supply of fuel was a constant. The fuel remaining in the tank of the fuel pump moves from two sources: return valve and ezhektor (fig. 2.62, 2.63).

Fig. 2.63. Scheme of operation of the fuel pump: 1–block of the fuel pump; 2–sensor of the index of level of fuel; 3–fuel pump; 4–fuel filter (high pressure); 5–fuel filter (low pressure); 6–tank of the fuel pump; 7–pressure regulator; 8–jet fuel pump; 9–valve distributor; 10-main stream of fuel; 11-return stream of fuel; 12-to the fuel distributor; 13-fuel tank



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2.1.5.7. Fuel knot
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2.1.6. System of production of the fulfilled gases and system of decrease in toxicity