6C-34 ENGINE FUEL AND EMISSION CONTROL SYSTEM
ELECTRO-INJECTORS
Generalities
The electro-injectors are made to receive a supply at high pressure
(up to 1350 bar) and a recycling of atmospheric pressure,
necessary for the operation of the pilot valve.
The temperature of the recycled diesel can reach high
temperatures (120ºC).
The top part of the electro-injector has a moulding for electric
coupler fixing.
The electro-injectors are fitted in the caliper head and are
controlled by the control unit.
They can be divided into two parts:
- spray - composed of the pressure rod (1), the spigot (2) and
the injector (3)
- electro-valve control - composed of the reel (4) and the pilot
valve (5).
Functioning
The functioning of the electro-injector can be divided into three
stages:
- "Rest position"
The reel (4) is not stimulated, the stopper (6) is in the closed
position and does not allow the introduction of fuel into the
cylinder. Fc>Fa (Fc: due to the in-line pressure which acts on
the control area (7) of the rod (1); Fa: due to the in-line pressure
which acts on the supply volume (8)).
- "Start of injection"
The reel (4) is stimulated and raises the stopper (6). The fuel
from the control volume (9) flows to the return collector (10)
causing a decrease in pressure in the control area (7).
At the same time, the in-line pressure through the supply conduct
(12) exercises in the chambre (8) a force Fa>Fc, raising the
spigot (2) with consequent introduction of fuel to the cylinders.
- "End of injection"
The reel (4) is not stimulated causing the stopper (6) to return to
the closed position, recreating a balance of forces making the
spigot r (2) return to its closed position and thus finishing the
injection.
Map of injector quota
The map of injector quota is the group of characteristics "amount
of fuel injected according to the duration of the electric signals
to various injection pressures". Precise knowledge of such
characteristics is of fundamental importance to determine the
necessary electrical signal in order to inject the required amount
of fuel.
4
5
6
7
12
13
9
11
14
12
1
15
2
8
3
10
ELECTRO-INJECTOR
1.- Drive rod
2.- Spigot
3.- Injector
4.- Reel
5.- Pilot valve
6.- Spherical stopper
7.- Control area
8.- Supply chamber
9.- Control volume
10.- Fuel return
11.- Control conduct
12.- Fuel conduct
13.- Electrical connection
14.- Fuel inlet (high pressure)
15.- Spring
Содержание PS-10
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Страница 53: ...BUMPERS FRONTHOODANDFRONTAL2 3 REAR BUMPER 1 Rear bumper 2 Side pad 3 Center pad 2 3 3 1 2 ...
Страница 57: ...BUMPERS FRONTHOODANDFRONTAL2 7 FRONTAL 1 Front Grille 2 Fender 3 Register Cover 4 Front Frame 3 4 2 1 ...
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Страница 123: ...WHEELS AND TIRES 3F 7 TIGHTENING TORQUE SPECIFICATIONS Wheel nuts 11 17 110 170 ELEMENT TORQUE Kg m Nm ...
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Страница 420: ...6C 38ENGINEFUELANDEMISSIONCONTROLSYSTEM CONNECTION DIAGRAM FROM CONTROL BOARD TO ENGINE COMPONENTS CONNECTOR A ...
Страница 422: ...6C 40ENGINEFUELANDEMISSIONCONTROLSYSTEM CONNECTIONS DIAGRAM FROM CONTROL UNIT TO VEHICLE COMPONENTS CONNECTOR B ...
Страница 447: ...TRANSMISSION 7 1 SECTION 7 TRANSMISSION CONTENTS GEARBOX 7A CLUTCH 7C TRANSFER BOX 7D FRONT AND REAR DIFFERENTIAL 7E 7 ...
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Страница 594: ...BODYSERVICE9 31 FRAME MAIN DIMENSIONS ...
Страница 595: ...9 32BODYSERVICE FRAME MAIN DIMENSIONS ...
Страница 601: ...ELECTRICAL DIAGRAMS ...
Страница 602: ...ELECTRICAL DIAGRAMS 2 ONLY COMMON RAIL POWER SUPPLY DIAGRAM ...
Страница 603: ...ELECTRICAL DIAGRAMS 3 ONLY COMMON RAIL ENGINE CONTROL SYSTEM ELECTRONIC FUEL INJECTION CONNECTOR A ...
Страница 604: ...ELECTRICAL DIAGRAMS 4 ONLY COMMON RAIL ENGINE CONTROL SYSTEM ELECTRONIC FUEL INJECTION CONNECTOR B ...
Страница 605: ...ELECTRICAL DIAGRAMS 5 ONLY COMMON RAIL STARTING HEATER VALVE DIAGRAM ...
Страница 606: ...ELECTRICAL DIAGRAMS 6 ONLY COMMON RAIL GLOW PLUG STARTING HEATER RELAY DIAGRAM ...
Страница 607: ...ELECTRICAL DIAGRAMS 7 ONLY COMMON RAIL FUEL FILTER SENSORS DIAGRAM ...
Страница 608: ...ELECTRICAL DIAGRAMS 8 ONLY COMMON RAIL DOUBLE STOP SWITCH ...
Страница 609: ...ELECTRICAL DIAGRAMS 9 ONLY COMMON RAIL FUEL PUMP ...
Страница 610: ...ELECTRICAL DIAGRAMS 10 ONLY COMMON RAIL DIAGNOSIS DIAGRAM ...
Страница 611: ...ELECTRICAL DIAGRAMS 11 ONLY COMMON RAIL A C DIAGRAM ...
Страница 612: ...ELECTRICAL DIAGRAMS 12 ONLY MECHANICAL INJECTION POWER SUPPLY DIAGRAM ...
Страница 613: ...ELECTRICAL DIAGRAMS 13 ONLY MECHANICAL INJECTION GLOW PLUG RELAY DIAGRAM ...
Страница 614: ...ELECTRICAL DIAGRAMS 14 ONLY MECHANICAL INJECTION INSTRUMENT PANEL ...
Страница 615: ...ELECTRICAL DIAGRAMS 15 ONLY MECHANICAL INJECTION COMBINATION METER DIAGRAM ...
Страница 616: ...ELECTRICAL DIAGRAMS 16 ONLY MECHANICAL INJECTION COOLING SYSTEM ...
Страница 617: ...ELECTRICAL DIAGRAMS 17 GENERAL DIAGRAMS HEADLAMP LEVELING SYSTEM DIAGRAM ...
Страница 618: ...ELECTRICAL DIAGRAMS 18 GENERAL DIAGRAMS REVERSE LAMP DIAGRAM ...
Страница 619: ...ELECTRICAL DIAGRAMS 19 GENERAL DIAGRAMS RADIO REAR WINDOW DEFOGGER ...
Страница 620: ...ELECTRICAL DIAGRAMS 20 GENERAL DIAGRAMS REAR DEMISTER STOP LAMP DIAGRAM ...
Страница 621: ...ELECTRICAL DIAGRAMS 21 GENERAL DIAGRAMS HORN DIAGRAM ...
Страница 622: ...ELECTRICAL DIAGRAMS 22 GENERAL DIAGRAMS TURN SIGNAL HAZARD LAMP DIAGRAM ...
Страница 623: ...ELECTRICAL DIAGRAMS 23 GENERAL DIAGRAMS LAMPS DIAGRAM ...
Страница 624: ...ELECTRICAL DIAGRAMS 24 GENERAL DIAGRAMS WASHER WIPER DIAGRAM ...
Страница 625: ...ELECTRICAL DIAGRAMS 25 GENERAL DIAGRAMS CHARGING SYSTEM DIAGRAM ...
Страница 626: ...Prepared by SANTANA MOTOR S A After Sales Service Department 1st Ed October 2002 Printed in Spain Printed October 2002 ...
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