Fuel injection devices
The injection pump devices consist of the in-line fuel injection pump and its equipment. This equipment consists of the speed governor, feed pump, pump clutch, excess fuel device, overpressure corrector and other accessories.
In the in-line fuel injection pumps range offered in this leaflet, the medium category Diesel engines producers’ demands are covered.
MOTORPAL produces in-line fuel injection pumps for various engine applications - for tractors, trucks, railway locomotives, ships, industrial use, gen-sets and engines for stationary use.
These fuel injection pumps can inject into compression ignition engine cylinders both Diesel fuel and, after making some modifications, petrol and other less valuable fuels.
MOTORPAL supplies complete injection equipment, including all the necessary services, beginning with equipment design up to compression ignition engines producers’ deliveries. The in-line fuel injection pumps differ by size (M, A, Z) and the way the pump is to be fitted to the engine.
Index
| Injection device designation | Piston stroke
[mm] | Piston diameter
[mm] | Number of cylinders | Max revolutions
[min-1] | Max pressure of injection
[MPa] |
| PP.M.e | 8 | 6 - 9 | 3, 4, 6 | 2 200 | 60 |
| PP.M.f | 10 (8) | 7 - 10 | 3, 4, 6 | 2 200 | 80 |
| PP.M.i | 12 (14) | 8 - 10 | 3, 4, 6, 8 | 2 200 | 120 |
| PV.A.j | 10 | 6 - 9 | 4 -12 | 1 400 | 60 |
| PV.B.j | 12 | 7 - 11 | 4, 6, 8 | 1 300 | 80 |
| PV.Z.i | 13 / 14 | 12 - 18 | 4, 6, 8 | 1 050 | 100 |
| PW.Z.i | 13 / 14 | 12 - 18 | 4, 6, 8 | 1 050 | 100 |
Kindes of attachment
| PV | cradle attachment, type size A, B, Z |
| PW | flange attachment, the flange type pump body, type size M, A |
| PP | cradle attachment, type size Z.i, 60° engine cylinders arrangement |
Execution PV
| | PV.A.j | PP.M.. | PV.B.j | PV.Z.i | | a | 18 | - | 18 | 25 | | b | 14 | 17 | 14 | 17 | | c | 9 | 9 | 9 | 11 | | d | 61 | 58 | 92 | 88 | | e | 65 | 74 | 84 | 100 | | f | 84 | 84 | 110 | 120 | | h | 104 | 104 | 130 | 145 | | R | 45 | 45 | 56 | 62,5 |
(dimensions in mm) | |
Execution PW
A
f7 | B
nominal | C
±0,5 | D
max | E | | 68 | 17 | 4,5 | 8,2 | 15 - 18 | | 20 | 9,5 | 8,2 | | 85 | 22 | 12,5 | 11 | | 25 | 17,4 | 16 |
(dimensions in mm) | |
Execution PP
A
f7 | B
nominal | C
±0,5 | D
max | E | | 68 | 17 | 4,5 | 8,2 | 15 - 18 | | 20 | 9,5 | 8,2 | | 85 | 22 | 12,5 | 11 | | 25 | 17,4 | 16 |
(dimensions in mm) | |
Choice of fuel injection pump size
In-line fuel injection pumps are produced in four basic sizes according to the piston stroke and the fuel specific delivery. The fuel quantity, delivered by the injection pump and in such a way even yhe size of the pump is given by the equation:
[mm3/stroke]
| Q | delivered fuel quantity on the stroke and cylinder [mm3] |
| Pe | effection compression engine output [kW] |
| i | number of engine cylinders |
| b | fuel consumption [g/kW/hod.] |
| np | number of fuel injection pump revolutions
(2-strokes engine - engine revolutions, 4-strokes engine - 1/2 engine revolutions) |
| fuel specific density (diesel 0,82 - 0,88 g/cm3) |
Type designation
| With proper driver |
| P | with flange attachment |
| V | with attachment on the bracket or area |
| W | with a normal attachment (housing to "V") |
| Number of injection units |
| Pump size according to piston stroke |
| Piston head shape (starting) |
| Right regulating edge - STOP on the right side |
| P | normal, constant beginning of injection |
| D | constant end fo injection |
| U | variable beginning and end of injection |
| K | starting, constant beginning of injection |
| Left regulating edge - STOP on the left side |
| L | normal, constant beginning of injection |
| G | constant end fo injection |
| T | variable beginning and end of injection |
| H | starting, constant beginning of injection |
| S | constant end fo injection |
| Y | variable beginning and end of injection |
| Drive side of the pump |
| Without fuel delivery pump |
| 0 | without injection advance device |
| 1 | injection advance right |
| 2 | injection advance left |
| With fuel delivery pump |
| 5 | without injection advance device |
| 6 | injection advance device right |
| 7 | injection advance device left |
| Side opposite to the drive |
| 0 | free pin of camshaft withour cover |
| 1 | governor right, STOP right |
| 2 | governor left, STOP left |
| 3 | free pin of camshaft with cover |
| 4 | free pin of camshaft with a clutch |
| * (unless otherwise provided - STOP on the left) |
| Positions of camshaft and injection order |
| Drive from the left |
| 1 | clockwise | 1 2 3
1 3 4 2
1 5 3 6 2 4
1 3 2 5 8 6 7 4 |
| 2 | counterclockwise |
| 3 | clockwise | 1 3 2
1 2 4 3
1 4 2 6 3 5
1 4 7 6 8 5 2 3 |
| 4 | counterclockwise |
| drive from the right |
| 5 | clockwise | 1 2 3
1 3 4 2
1 5 3 6 2 4
1 3 2 5 8 6 7 4 |
| 6 | counterclockwise |
| 7 | clockwise | 1 3 2
1 2 4 3
1 4 2 6 3 5
1 4 7 6 8 5 2 3 |
| 8 | counterclockwise |
| 9 | abnormal |
**) For the injection pump specification there is the assembly instruction number essential
