gf4700w0002a

Fuel supply, function

Typ gf · temat 47.00 · wersja 0102 · 2007-07-20

Dotyczy: ENGINE 904.9 in MODEL 375.1 with BODY 375.830 ENGINE 904.9 in MODEL 970, 972, 975, 976 with BODY 972.899 ENGINE 906.9 in MODEL 970, 972, 974, 975, 976 with BODY 972.899 ENGINE 906.9 in MODEL 375.3 with BODY 375.810 ENGINE 906.9, 926.9 in MODEL 950, 952, 953, 954 with BODY 940.899

Niedostępne w języku „pl”; wyświetlono w języku Angielski.

Umiejscowienie

Grupa funkcyjna 1 Silnik › 47 Układ paliwowy, zasilanie energią zespołu napędowego › 47.00 Informacje ogólne — Seria 375 (modele 1**, 3**, 810, 830) · Seria 904 (modele 9**) · Seria 906 (modele 9**) · Seria 940 (modele 899) · Seria 950 · Seria 952 · Seria 953 · Seria 954 · Seria 970 · Seria 972 · Seria 974 · Seria 975 · Seria 976

Dotyczy też silników/skrzyń biegów: 926 9**

GF47.00-W-0002A

Fuel supply, function

4.7.07

ENGINE 904.9 in MODEL 375.1 with BODY 375.830

ENGINE 904.9 in MODEL 970, 972, 975, 976 with BODY 972.899

ENGINE 906.9 in MODEL 970, 972, 974, 975, 976 with BODY 972.899

ENGINE 906.9 in MODEL 375.3 with BODY 375.810

ENGINE 906.9, 926.9 in MODEL 950, 952, 953, 954 with BODY 940.899

Fuel supply, function

W47.00-1023-76

Shown on engine 906.9

2.1 Fuel prefilter

3.1 Assembly valve in fuel feed flow (opened by pressure)

3.2 Assembly valve in fuel return flow (opened by pressure)

5 Fuel pump

6 Fuel filter

7 Nozzle holder combination

8 Overflow valve (4.5 bar)

Y6 Cylinder 1 unit pump

Y7 Cylinder 2 unit pump

Y8 Cylinder 3 unit pump

Y9 Cylinder 4 unit pump

Y10 Cylinder 5 unit pump

Y11 Cylinder 6 unit pump

A Fuel feed line, suction side and / or vacuum side

D Fuel return line

B Fuel feed line, pressure side

C Fuel high-pressure line

General information

The fuel supply ensures that the fuel required for combustion is available under all operating conditions in the sufficient quantity, at the correct time and with the required pressure.

Fuel to the individual cylinders is supplied through the Pump Line Nozzle System (PLD System), which is provided with fuel by the fuel low pressure circuit.

Fuel low pressure circuit

The fuel low pressure circuit ensures that the fuel is cleaned and is provided to the unit pumps of the PLD System in the sufficient quantity and with the required pressure.

It basically consists of the following components:

Fuel tank

Fuel prefilter (2.1)

Fuel pump (5)

Fuel filter (6)

Overflow valve (8)

Suction or vacuum side fuel feed line (A)

Pressure side fuel feed line (B)

Fuel return lines (D)

Pump Line Nozzle System (PLD System)

The fuel provided by the fuel low pressure circuit through the PLD system is injected into the cylinders in the adequate quantity, at the correct time and with the correct pressure.

The Pump-Line-Nozzle system consists of unit pumps for cylinder 1 to 6 (Y6 to Y11), injection nozzles in the nozzle holder combinations (7), pressure pipe connections and the high pressure fuel lines (C), over which the individual unit pumps are connected with the respective injection nozzles.

The excess fuel delivered during high-pressure delivery reenters the fuel low pressure circuit through fuel return lines (D).

Fuel low pressure circuit function

GF47.00-W-3011A

Fuel high pressure delivery function

GF47.00-W-3012A

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