Producing the high fuel pressure required for injection 2. The result was a revolutionary new design the first single cylinder, opposed plunger, inlet metering rotary distributor type diesel fuel injection pump. Chapter seven fuel injection the electronic fuel injection system was. Fuel injection pumps play an important role in delivering fuel to the injectors at the required pressure and timing. Distributor type fuel pumps trouble shooting guide united fuel injection create an account.
The lift pump produces a positive pressure, but of more importance, a solid column of fuel at the inlet of the injection pump. Thermotime switch 3, injector 4,warmup regulator 5 fuel pump protective cover above, fuel pump no. Fuel distributor repair 911, 914 32 fuel distributor repair 928 33. Fuel injection pump fuel injection diesel engine scribd. 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. Traditionally, the injection pump is driven indirectly from the crankshaft by gears, chains or a toothed belt often the timing belt that also drives the camshaft. The injection pump is an inline, plunger type, with an individual plunger and barrel pumping element for each engine cylinder. 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. Modern tractor engines use fuel injectors, which have multiple holes. 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.
Pump name plate fie asy code id code for s regulation id code for production serial numbers injection pump no. Kaario cfd simulation more about cfd simulations, course kul14. The distributor type fuel system is found on small to mediumsized diesel engines. Distributor type injection pump, electronic diesel control.
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. 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. Distributor type fuel injection pump fits the criteria of light weight and compact design. In case the fuel injection is well achieved by the. Excess fuel is used to cool and lubricate the injection pump. One set is connected to pump inlet via central passage whereas the second set is connected to delivery lines leading to injectors of various cylinders. The launch of vp36 vp37 edc electronic diesel control systems signifies this step towards improved closed loop controls. The dpa pump is a compact unit that is lubricated throughout by fuel and requires no separate lubrication system. Distributor type fuel injection pump fits the criteria of. One of the problems encountered with early jerk pump injection system was the. The injection sequence should be faster, which requires the pump to be compact and light in weight.
It rotates at half crankshaft speed in a conventional fourstroke diesel engine. Get the most out of your vehicle with our free distributor type fuel pump troubleshooting guide here. Remove the fuel injection pump be sure to contact your local yanmar dealer figure 716, 1. It was the smallest, simplest fuel injection pump the world had ever seen, at. Distributor rotary injection pumps these types of pumps have only one fuel metering plunger.
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. John deere 301 401 industrial tractor service manual. Tractor engines may use two types of fuel injection pump. The robert bosch model pes 6mw injection pump is used on the international dt466c diesel engine. The engine computer controls fuel injection duration and timing to allow for higher efficiency and power. Fuel injection pump defective or cannot be adjusted. Distributor type fuel injection pump adapted for partial cylinder. Fuel under high pressure passes along injector pipes. The fuel is drawn into the central rotor passage from the. Diesel distributor fuel injection 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.
As fuel enters the transfer pump, it passes through a cone type filter and on into the hydraulic head assembly of the injection pump. 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. 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. Some, however, use a vane type fuel pump mounted directly to the injection pump fuel distributor assembly. Bosch vintage diesel fuel pump manuals for mechanicsbosch fpk fpue fpah fpkla feed pumpbosch pea peb test sheets instructions for testingbosch ve rep. Metering the exact amount of fuel for each injection cycle 3. Fuel is drawn from the fuel tank by a fuel lift pump mechanical or electrical through the primary and secondary filters before entering the transfer pump. Pdf diesel distributor fuelinjection pumps technical instruction. Working mechanism of distributor type fuel injection pump used to pump pressurized fuel to ic engine cylinders in definite order indepth. Teachers should feel free to add objectives which will fit the material to the needs of the stu. Carefully calibrated fuel injection pumps deliver just the right quantity of diesel fuel into the combustion chamber. Fuel injection pump distributor type the fuel injection pumps, bosch ve, lucas cav dpa, stanadyne db4, and lucas cav dps, are rotary distributor. Foreword this service manual describes the construction and operation of the vp 44 radial plunger distributor type fuel injection pump. The pump under test is a diesel kiki zexel ve fuel.
Distributor type fuel pumps trouble shooting guide. 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. Distributor type fuel injection pump working and animation. Its operation is similar to an ignition distributor found on gasoline engine. 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. 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. Contents 12 types of governor maximumspeed governors minimum. Bosch diesel fuel pump manuals for mechanics themanualman. An injection pump is the device that pumps diesel as the fuel into the cylinders of a diesel engine.
Distributor type fuel pumps starting problem guide. Pdf diesel distributor fuelinjection pumps technical. In a distributor type fuel injection pump of the type including a plunger arranged for reciprocating and rotative motion, and a fuel injection. Kjetronic porsche always use new gaskets, seals and 0rings when. If the filter clogs, a bypass valve in the element opens to keep a full flow of oil to vital engine parts. Common rail diesel uses a single fuel rail to supply fuel to the electronically controlled injectors under extremely high pressure.
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. It was the smallest, simplest fuel injection pump the world had ever seen, at a much lower price than anything available before. Fuel injection system zthe fuel speed at the point of delivery is greater than the. The fuel system distributor type injection pump ca.
It is a fullflow type with a spinon type replaceable element. 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. Many of them use a fuel pump essentially identical to the carbureted fuel systems. A spinning rotor makes a hydraulic connection with the different ports on the distributor head. Certain mechanical fuel injection systems also utilize a mechanical fuel pump, typically some early gasoline fuel injection systems.