Contents 12 types of governor maximumspeed governors minimum. Some, however, use a vane type fuel pump mounted directly to the injection pump fuel distributor assembly. Working mechanism of distributor type fuel injection pump used to pump pressurized fuel to ic engine cylinders in definite order indepth description of parts of the injection pump. Kaario cfd simulation more about cfd simulations, course kul14. The distributor part of the rotor has a central axial passage which connects the pumping spacebetween the plungers with thefour inlet ports and single distributing port drilled radially in the rotor.
It was the smallest, simplest fuel injection pump the world had ever seen, at a much lower price than anything available before. Fuel fuel injection pump fuel injection timing nozzle fuel filter on engine air intake silencer air flow engine combustion fuel consumption i fuel system closed system with ble points. Fuel injection pump distributor type the fuel injection pumps, bosch ve, lucas cav dpa, stanadyne db4, and lucas cav dps, are rotary distributor. The fuel injection pump is a fuel distribution type pump that supplies fuel to each cylinder of the engine through a distribution shaft by using a single plunger unlike conventional rail system or distribution system pumps. The dpa pump is a compact unit that is lubricated throughout by fuel and requires no separate lubrication system. In a distributor type fuel injection pump of the type including a plunger arranged for reciprocating and rotative motion, and a fuel injection. Distributor rotary injection pumps these types of pumps have only one fuel metering plunger. One of the problems encountered with early jerk pump injection system was the. The injection pump is an inline, plunger type, with an individual plunger and barrel pumping element for each engine cylinder. A, b, c on the fuel injection pump drive gear, idler gear, and crankshaft drive gear. For purposes of future before replacing the fuel injection pump. Distributor type fuel pumps trouble shooting guide. Distributor type pump dpa type this pump has only a single pumping element and the fuel is distributed to each cylinder by means of a rotor a central longitudinal passage in the. Fuel injection pump fuel injection diesel engine scribd.
Modern tractor engines use fuel injectors, which have multiple holes. Fuel injection pumps play an important role in delivering fuel to the injectors at the required pressure and timing. In our discussion of the distributor fuel injection system, we will use the dpa type for our example because of its wide use on navy small craft. Get the most out of your vehicle with our free distributor type fuel pump troubleshooting guide here. Bosch diesel fuel pump manuals for mechanics themanualman. Distributor type fuel injection pump adapted for partial cylinder. The engine computer controls fuel injection duration and timing to allow for higher efficiency and power. The pump under test is a diesel kiki zexel ve fuel. It is a fullflow type with a spinon type replaceable element. Early bosch rotary distributor pump free pdf file sharing. Electronically controlled distributor type fuel injection. Its operation is similar to an ignition distributor found on gasoline engine.
Many of them use a fuel pump essentially identical to the carbureted fuel systems. The lift pump produces a positive pressure, but of more importance, a solid column of fuel at the inlet of the injection pump. Tractor engines may use two types of fuel injection pump. John deere 301 401 industrial tractor service manual. The fuel system distributor type injection pump ca.
Distributor type fuel injection pump fits the criteria of. Pump name plate fie asy code id code for s regulation id code for production serial numbers injection pump no. Metering the exact amount of fuel for each injection cycle 3. Working principles, repair and testing of pe a type, multicylinder fuel injection pump with rsv and rqv governors, ve distributor type fuel injection pump, addon modules fitted on pe a and ve pumps, injector, injection timer, feed pump and.
Diesel distributor fuelinjection pumps ve the reasons behind the. Distributor type injection pump, electronic diesel control. Distributor type fuel injection pump working and animation. The result was a revolutionary new design the first single cylinder, opposed plunger, inlet metering rotary distributor type diesel fuel injection pump. Fuel under high pressure passes along injector pipes. Common rail diesel uses a single fuel rail to supply fuel to the electronically controlled injectors under extremely high pressure. Excess fuel is used to cool and lubricate the injection pump. Diesel distributor fuel injection pumps technical instruction. Foreword this service manual describes the construction and operation of the vp 44 radial plunger distributor type fuel injection pump. The fuel is drawn into the central rotor passage from the.
Carefully calibrated fuel injection pumps deliver just the right quantity of diesel fuel into the combustion chamber. In case the fuel injection is well achieved by the. Fuel injection pump defective or cannot be adjusted. Bosch fuel pump bosch cp3 fuel injection pump bosch inline fuel injection pump manual fuel pump toyota fuel pump fuel pump 176437 3406a fuel pump manual fuel pump simms fuel pump fuel pump fuse bosch p pump cummins m11. Pdf diesel distributor fuelinjection pumps technical instruction. A rotating member, called a rotor, within the pump distributes fuel at high pressure to the individual injectors in engine firingorder sequence. Bosch vintage diesel fuel pump manuals for mechanicsbosch fpk fpue fpah fpkla feed pumpbosch pea peb test sheets instructions for testingbosch ve rep. These systems are similar to mechanical distributor pumps but with electronic controls for fuel metering and injection timing. Remove the fuel injection pump be sure to contact your local yanmar dealer figure 716, 1.
Working mechanism of distributor type fuel injection pump used to pump pressurized fuel to ic engine cylinders in definite order indepth. It rotates at half crankshaft speed in a conventional fourstroke diesel engine. Fuel injection system zthe fuel speed at the point of delivery is greater than the. Pdf diesel distributor fuelinjection pumps technical. Fuel system distributor type fuel injection pump bleed air chapter 8 periodic inspection and maintenance procedures fuel system distributor type fuel injection pump bleed air when handling fuel, make sure there are no open flames or other fire hazards near the engine.
Please find attached a technical instruction manual on bosch diesel distributor fuel injection pumps. It was the smallest, simplest fuel injection pump the world had ever seen, at. Distributor type fuel injection pump fits the criteria of light weight and compact design. Thermotime switch 3, injector 4,warmup regulator 5 fuel pump protective cover above, fuel pump no. An overview fields of application 4 technical requirements 4 injection pump designs 6 mechanicallycontrolled governed axialpiston distributor fuel injection pumps ve fuel injection systems 8 fuel injection techniques 9 fuel supply and delivery 12 mechanical enginespeed control governing 22 injection timing 29. A spinning rotor makes a hydraulic connection with the different ports on the distributor head. Distributor functionssend fuel to plungerstime duration in close position of electrovalve determines the injection flow sistemas automoveis anolectivo20092010 radial rotary injection pump basic operation distributor functionssend fuel to injectorsthe plungers are pressed by cam fuel high pressure generated distributor rotates to. Distributor type fuel pumps starting problem guide. The launch of vp36 vp37 edc electronic diesel control systems signifies this step towards improved closed loop controls. An injection pump is the device that pumps diesel as the fuel into the cylinders of a diesel engine. Fuel injection system distributor type pumps there is a central longitudinal passage in the rotor and two sets of radial holes located at different heights.
The american society of mechanical engineers rotary. The robert bosch model pes 6mw injection pump is used on the international dt466c diesel engine. It is the component, which delivers finely atomised fuel under high pressure to the combustion chamber of the engine. Each pump is selected, designed and tested for thousands of hours to ensure your perkins diesel engine delivers maximum power output and optimum fuel. Teachers should feel free to add objectives which will fit the material to the needs of the stu. The injection sequence should be faster, which requires the pump to be compact and light in weight. Distributor type fuel pumps trouble shooting guide united fuel injection create an account. Producing the high fuel pressure required for injection 2. The distributor type fuel system is found on small to mediumsized diesel engines. Bosch distributor type injection pump with electronic diesel control veedc provide stringent emission norms and customer requirements on driving comfort and performance. As fuel enters the transfer pump, it passes through a cone type filter and on into the hydraulic head assembly of the injection pump.
585 1168 1468 368 1086 1134 901 1278 722 1170 413 467 250 65 394 749 145 507 1489 1155 418 586 1276 351 508 995 408 1197 752 927