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  • Date : 10 / 04 / 2010
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  • Comments : Comments Off on Who is dieselenginesystem, what can it supply?

Welcome to the world of Rader Diesel Parts Co.,Ltd . We are the manufacturer and exporters of Diesel Fuel Injection,our plant has been one of the specialized to International automobile Industry of diesel fuel injection systems which consists mainly of Diesel Pump, Diesel spares and automotive fuel injection parts and Spares. Diesel Engine Parts, Fuel Injection Parts, Fuel Injection components, Generator parts, Agricultural machines Spare Parts, etc.Our Product Range
Nozzles (toberas). Types available are : DN, DNPD, DL, DLL, DLLA, DLLAP, etc
Elements ( Elementos) available in bore sizes of 5 mm to 25 mm
Delivery Valves (Valvulas )
Feed Pumps & Spares (Bombas De Alimentacion)
Head rotor
Pencil Nozzle
Cam Disc
Supply Pump
Repair kit
VE Heads, etc

At Rader Diesel Parts Plant we develop & produce Diesel Fuel Injection Systems and components for all leading diesel engine and diesel vehicle manufacturers. Each individual’s part is perfectly adapted to the type of vehicle in question.

Rader Parts Plant has all the facilities and know-how needed to develop high quality products. Our manufacturing capabilities enable us to develop the product according to the customer’s samples & drawings. We are specializing in all kinds of auto parts.

We have the training, experience, and equipment to repair or remanufacture your diesel fuel system. We test and calibrate each fuel injection component to factory-authorized specifications for high performance and long life. Along with our fuel injection repair, we are specialized in the field of Diesel Pump Parts, Diesel Engine Parts, and Fuel Injection Parts etc.

Today, we have made rapid strides in exports and have acquired a respectable status. A team of dynamic professionals oversees our operations and continues to innovate in ways that best serve our customer’s interest.

Base on our technology strength.We can produce the diesel parts base on your sample or technical drawing.

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  • Comments : Comments Off on Nozzle-Nozzle principles

Nozzle is actually a simple solenoid valve, when the electromagnetic coil when energized, produce suction, needle being sucked on, open the nozzle, the fuel needle through needle head and the nozzle axis of the annular gap between the high-speed exhaust, the formation of mist, which will help complete combustion.
Nozzle – Nozzle role
Gasoline direct injection engines the most sophisticated parts – Nozzle
EFI engine, as one of the key components of nozzle, it will seriously affect the work of good or bad performance of the engine. Nozzle plug will seriously affect vehicle performance. Blockage is due to coke deposition inside the engine or the fuel injectors on the fuel impurities such as blockage of the nozzle channel. Car running for some time, fuel systems will form some sediment. Sediment formation and the fuel directly related: the first is due to gasoline itself contains resin, impurities, or during storage and transportation into the dust, impurities, etc., accumulate in the vehicle fuel tank, into the tubing and other parts of the deposition of the formation of similar sludge material; secondly because of the volatile components of gasoline under certain temperature reacts to form a viscous gum and resin-like material. The viscous material in the fuel injectors, intake valves and other parts of the combustion, the sediment becomes hard coke. In addition, due to urban traffic congestion, often in low speed and idling car state, but will increase the formation and accumulation of these sediments. Great harm fuel system deposits. Sediment can clog the nozzle of the needle valve, valve hole, affecting precision electronic injection system component performance, resulting in dynamic performance degradation; sediment in the intake valve carbon deposit formation, resulting in the closure of lax, resulting in engine idle speed instability , increased fuel consumption and associated emissions deterioration; sediments in the piston top and cylinder head and other parts of the formation of hard coke, coking of the heat capacity as high thermal conductivity is poor, prone to violent earthquakes and other engine failure; There will also be reduced by three per catalytic converter life. The work of good or bad injector on each engine’s power play a fundamental role to play. As the result of poor fuel injector work not working, so that the cylinder coke serious; cylinder, piston ring wear accelerated, resulting in unstable idle speed, fuel consumption, accelerate weakness, difficulty starting and emissions exceeded, will be completely blocked nozzle serious , damage to the engine. Therefore, regular cleaning fuel injectors, for long periods of frequent cleaning or nozzle cleaning can cause a bad influence. As for the cleaning of the time, according to vehicle speed, and usually increases the quality of the fuel to determine, in general, and now most of the user is about 2 ~ 30 000 km to clean. Vehicle condition is good, good quality fuel can be extended to 4 ~ 60 000 km or so. When the nozzle slightly closed, also have some impact on vehicle condition. Sometimes such a failure: to hang a block, start the car some jitter, and other high hanging, acceleration, this phenomenon disappeared, assuming that all sensors working properly the car, valve are cleaned, the circuit is also normal , it is likely that a slight blockage of the nozzle. But the high-gear acceleration, there may be mild gum has been sprayed away (dissolved), and vehicle performance resumed. This small plug nozzle of the situation, generally do not wash. Because of minor gum can be dissolved out. Therefore, in daily driving, you should always run a high-speed running in order to reduce the possibility of coke into lines. When gasoline or poor quality of vehicles traveling a long time, if long-term non-cleaning nozzle, this block will become even more serious, causing poor engine fuel injection, injection angle and poor atomization, resulting in engine idle speed, acceleration or when the full load condition is not very good, so engine power drop, increased fuel consumption, emissions pollution to increase, or even the engine does not work. Therefore, regular inspection nozzle carefully cleaned to ensure good work.

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  • Comments : Comments Off on About Diesel fuel Injection

Fuel injection is a system for mixing fuel with air in an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s.
A fuel injection system is designed and calibrated specifically for the type(s) of fuel it will handle. Most fuel injection systems are for gasoline or diesel applications. With the advent of electronic fuel injection (EFI), the diesel and gasoline hardware has become similar. EFI’s programmable firmware has permitted common hardware to be used with different fuels.
Carburetors were the predominant method used to meter fuel on gasoline engines before the widespread use of fuel injection. A variety of injection systems have existed since the earliest usage of the internal combustion engine.
The primary difference between carburetors and fuel injection is that fuel injection atomizes the fuel by forcibly pumping it through a small nozzle under high pressure, while a carburetor relies on low pressure created by intake air rushing through it to add the fuel to the airstream.
The fuel injector is only a nozzle and a valve: the power to inject the fuel comes from a pump or a pressure container farther back in the fuel supply.


The functional objectives for fuel injection systems can vary. All share the central task of supplying fuel to the combustion process, but it is a design decision how a particular system will be optimized. There are several competing objectives such as:
power output
fuel efficiency
emissions performance
ability to accommodate alternative fuels
driveability and smooth operation
initial cost
maintenance cost
diagnostic capability
range of environmental operation
Engine tuning
Certain combinations of these goals are conflicting, and it is impractical for a single engine control system to fully optimize all criteria simultaneously. In practice, automotive engineers strive to best satisfy a customer’s needs competitively. The modern digital electronic fuel injection system is far more capable at optimizing these competing objectives consistently than a carburetor. Carburetors have the potential to atomize fuel better (see Pogue and Allen Caggiano patents).

Engine operation
Operational benefits to the driver of a fuel-injected car include smoother and more dependable engine response during quick throttle transitions, easier and more dependable engine starting, better operation at extremely high or low ambient temperatures, increased maintenance intervals, and increased fuel efficiency. On a more basic level, fuel injection does away with the choke which on carburetor-equipped vehicles must be operated when starting the engine from cold and then adjusted as the engine warms up.
An engine’s air/fuel ratio must be precisely controlled under all operating conditions to achieve the desired engine performance, emissions, driveability, and fuel economy. Modern electronic fuel-injection systems meter fuel very accurately, and use closed loop fuel-injection quantity-control based on a variety of feedback signals from an oxygen sensor, a mass airflow (MAF) or manifold absolute pressure (MAP) sensor, a throttle position (TPS), and at least one sensor on the crankshaft and/or camshaft(s) to monitor the engine’s rotational position. Fuel injection systems can react rapidly to changing inputs such as sudden throttle movements, and control the amount of fuel injected to match the engine’s dynamic needs across a wide range of operating conditions such as engine load, ambient air temperature, engine temperature, fuel octane level, and atmospheric pressure.
A multipoint fuel injection system generally delivers a more accurate and equal mass of fuel to each cylinder than can a carburetor, thus improving the cylinder-to-cylinder distribution. Exhaust emissions are cleaner because the more precise and accurate fuel metering reduces the concentration of toxic combustion byproducts leaving the engine, and because exhaust cleanup devices such as the catalytic converter can be optimized to operate more efficiently since the exhaust is of consistent and predictable composition.
Fuel injection generally increases engine fuel efficiency. With the improved cylinder-to-cylinder fuel distribution, less fuel is needed for the same power output. When cylinder-to-cylinder distribution is less than ideal, as is always the case to some degree with a carburetor or throttle body fuel injection, some cylinders receive excess fuel as a side effect of ensuring that all cylinders receive sufficient fuel. Power output is asymmetrical with respect to air/fuel ratio; burning extra fuel in the rich cylinders does not reduce power nearly as quickly as burning too little fuel in the lean cylinders. However, rich-running cylinders are undesirable from the standpoint of exhaust emissions, fuel efficiency, engine wear, and engine oil contamination. Deviations from perfect air/fuel distribution, however subtle, affect the emissions, by not letting the combustion events be at the chemically ideal (stoichiometric) air/fuel ratio. Grosser distribution problems eventually begin to reduce efficiency, and the grossest distribution issues finally affect power. Increasingly poorer air/fuel distribution affects emissions, efficiency, and power, in that order. By optimizing the homogeneity of cylinder-to-cylinder mixture distribution, all the cylinders approach their maximum power potential and the engine’s overall power output improves.
A fuel-injected engine often produces more power than an equivalent carbureted engine. Fuel injection alone does not necessarily increase an engine’s maximum potential output. Increased airflow is needed to burn more fuel, which in turn releases more energy and produces more power. The combustion process converts the fuel’s chemical energy into heat energy, whether the fuel is supplied by fuel injectors or a carburetor. However, airflow is often improved with fuel injection, the components of which allow more design freedom to improve the air’s path into the engine. In contrast, a carburetor’s mounting options are limited because it is larger, it must be carefully oriented with respect to gravity, and it must be equidistant from each of the engine’s cylinders to the maximum practicable degree. These design constraints generally compromise airflow into the engine. Furthermore, a carburetor relies on a restrictive venturi to create a local air pressure difference, which forces the fuel into the air stream. The flow loss caused by the venturi, however, is small compared to other flow losses in the induction system. In a well-designed carburetor induction system, the venturi is not a significant airflow restriction.
Fuel is saved while the car is coasting because the car’s movement is helping to keep the engine rotating, so less fuel is used for this purpose. Control units on modern cars react to this and reduce or stop fuel flow to the engine reducing wear on the brakes.

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Abstract from the perspective of the use and environmentally friendly diesel engine exhaust causes and troubleshooting anomalies, to improve equipment utilization, reduce maintenance costs have practical significance.
Keywords Emission Diesel Combustion System
Diesel engine with good economy and power performance, is widely used in mining machinery, engineering machinery and other industries. Diesel engines in daily use, can change the color of its smoke to determine fault, so do timely maintenance, to reduce economic losses. The following 3 common to the unusual engine exhaust causes for the failure and exclusion method to make an introduction.
1 smoky and remedy the reasons for
This phenomenon is due to incomplete combustion of fuel produced. When black smoke, often accompanied by a decline in engine power, exhaust temperature is too high, the water temperature is too high, leading to the engine’s mechanical wear, reduces engine life. The causes of the phenomenon (leading causes of incomplete combustion of many) and excluded as follows.
(1) high exhaust back pressure or exhaust duct obstruction. This situation may lead to inadequate intake air, thus affecting the air and fuel mixture ratio, resulting in too much oil. This situation occurs: The first exhaust pipe bends (especially the 90 �� bend) too much, should be minimized; the second is * too much soot blocked internally and should be removed.
(2) lack of or into the air intake duct obstruction. To find out the reason, should check the following: First, the air filter is blocked; Second, intake manifold leaks (if this phenomenon, the engine load increases due to the gas associated with more harsh whistling); three is the turbocharger for damage. Should check the exhaust wheel and turbocharger wheel blades for damage, and moves freely flexible; Fourth, in the cold is blocked.
(3) valve clearance adjustment is not correct, the valve sealing line is bad. Should check the valve clearance, valve springs and valve seals situation.
(4) of the cylinder high-pressure oil supply pump uneven or too large. Uneven supply will result in speed instability, intermittent black smoke, should be adjusted to balance or in the specified range.
(5) injection late fuel injection timing should be adjusted.
(6) injector working poor or damaged, remove the cleaning inspection.
(7) injector model selection error. Imports of high-speed engine of the optional injector, there are strict requirements (jet diameter, hole number, injection angle), such as the inappropriate choice of black smoke can also cause the engine, even the same type of engine used in different situations (output power, not the same speed, etc.), requiring the use of the injector is not the same model. Such as the matching error, the correct model should replace the injector.
(8) grades of diesel fuel quality is poor or wrong. Injector equipped with a porous combustion chamber, the import high-speed direct injection diesel engines, fuel injector aperture as small, high precision, quality and grades of diesel fuel has more stringent requirements, otherwise the engine will cause black smoke, and even the the engine will not operate.Therefore, we should use clean diesel qualified, suggested the use of diesel Arranging, the summer with a 0 or +10 No, the winter use -10 or -20 No. No. No. -35 cold regions are selected.
(9) cylinder, piston wear more serious. When this situation occurs, piston rings Mifengbuyan, a serious decline in cylinder pressure, resulting in combustion of diesel can not be fully black smoke, and engine power dropped dramatically, seriously, in the load, the engine will automatically turn off. Worn parts should be replaced.
2 emissions and remedy the causes blue smoke
Blue smoke emissions was due to an excessive amount of oil in the combustion chamber due to combustion. This failure occurs the following reasons:
(1) oil pan add the oil too much. Too much oil will splash as the high-speed operation of the crankshaft to the cylinder wall, and fleeing into the combustion chamber. Exclusion is down about 10 minutes, and then check the oil gauge will drain excess oil.
(2) cylinder, piston assembly badly worn, the gap is too large. As its gap is too large, the oil will be a large number of fleeing into the combustion chamber, accompanied by an increase in the engine crankcase emissions, treatment should be timely replacement of worn parts.
(3) piston rings useless. Insufficient flexibility, such as piston rings were stuck in the ring carbon tank, or the collar in the same line, or the oil return hole plug ring, fleeing into the combustion chamber will cause a lot of burning oil, blue smoke emissions occur. Approach is to remove the ring, remove carbon, heavy cloth of the collar (on the proposal to stagger under the collar 180 ��), if necessary, replace the piston rings.
(4) valve and catheter clearance is too large. Due to wear, resulting in the gap between the two is too large, in the inlet, the rocker was a lot of indoor inhalation of oil combustion chamber, approach is the replacement of worn valves and ducts.
(5) take the blue smoke caused by other reasons. If too thin oil, engine oil pressure is too high, the engine is not running well, will take the blue smoke caused by burning oil.
3, gray smoke emissions cause and remedy
Gray engine exhaust emissions, fuel for machines that are part of the temperature is too low, oil and gas atomization bad, too late to burn the fuel to be discharged from the exhaust pipe. The main reasons for this phenomenon are:
(1) If the injection time of late, when leaking fuel injector fuel injection, injection pressure is too low, poor atomization, when the machine was too late combustion temperature is too low to be discharged to the form of white smoke.Approach, the correction of fuel injection time, check the injector conditions.
(2) lack of pressure within the cylinder. The cylinder liner, piston ring wear components, and the bad valve seals, causing the engine to take gray smoke when first started, and then with the machine temperature rise, into a light smoke or black smoke. Approach is to replace the worn cylinder liner, piston ring or valve repair, valve seat ring.
(3) diesel in the water. If, after the engine started emitting smoke gray, with the machine temperature rise, gray smoke still exists, then it may be too much diesel fuel mixed with water. Solution is to start a day before the fuel tank drain valve is opened, the bottom sediment and water discharge out.
To sum up, the engine exhaust exception is a comprehensive reflection of internal fault. Therefore, the engine exhaust to determine the normal working condition or not is an important indicator of good or bad one, if untreated, can guarantee the ideal engine to use, to avoid unnecessary economic losses.

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  • Comments : Comments Off on Product description and classification of diesel fuel injection pump

Now the car engine, the fuel pump assembly is usually caused by injection pump, governor and other components installed together to form a whole. One governor is to protect the low-speed diesel engine operation and the maximum speed limit, ensure that the injection volume and speed to maintain a certain relationship between the components. The diesel engine fuel injection pump is the most important parts, diesel engines is considered the “heart” part, it will make the engine work once the problem disorders. The following details only fuel pump.
There inline fuel injection pump, distribution type, monomer type and other three categories, regardless of what type, fuel injection pump is the key to a “pump” is used. The number of pump oil, pressure and time must be very precise, and automatically adjust according to load. Injection pump is a precision machining, manufacturing process of complex parts, usually at home and abroad by injection pump of diesel engine cars in the world produced a few specialized plants.
In-line fuel injection pumps for an example see “pump” is how it works:
Pump power source can be run, it lower the camshaft is driven by the engine crankshaft gear.
The key part is the fuel pump plunger, the syringe if the hospital common metaphor, it is called movable plunger stopper, syringe plunger on the known sets of assumptions in the cylinder is installed inside a spring withstand column Plug one end of the plunger contacts the other end of cam shaft, camshaft rotation when the week, the plunger comprising a plunger will move up and down in time, this is the basic fuel injection pump plunger movement means.
Plunger and the plunger is processing a very sophisticated set of accessories. Plunger body has an inclined groove, the plunger put on a small hole called the intake, this intake is full of diesel, when the piston groove tilt against intake, the diesel fuel into the plunger comprising a plunger is camshaft top to a certain height, tilt the plunger and the suction slot staggered intake is closed, so that diesel can not breathe and can not be pressure from the plunger when the pressure continued to increase diesel fuel, diesel oil pressure to a certain extent it will open a one-way top surging out into the injector valve and then into the cylinder combustion chamber from the nozzle.
Here in particular to point out that diesel engines are into the pipeline and the return pipe, tubing into easy to understand, then the return pipe what is the use? Each piston had a certain amount of diesel exhaust is only part of the spray into the cylinder, and the rest go by the back vent hole and used to go back to change vent to regulate the fuel injection quantity of fuel.
When the piston up to the “on the spot” down after the move, tilt piston intake slot will meet with the diesel has been sucked into the plunger sleeve inside, repeat the above action. Inline fuel injection pump plunger system, each group corresponds to a cylinder, four cylinder piston systems have 4 groups, the relatively large size, more and more used in medium-sized car. Such as buses and large trucks on the general use of inline fuel injection pump diesel engines.
Car and light vehicle diesel engine fuel injection pump is usually assigned type, small size, light weight, fewer parts and simple structure. It uses two plunger system (or a plunger system) pressure, diesel oil into each injector.
Its basic principle is to pump the plunger inside two of the home installed in impeller, the impeller driven by the engine rotation, the plunger also will rotate, due to the raised part of the pressure ring cam moving plunger to plunger play the same role as the pump impeller central to the delivery hole pressure to send diesel fuel, then send out a distributor of diesel filled the entrance, and then press the cylinder in order of injection.
As the two plunger system (or a plunger system) and Movement Speed increased in proportion to the number of cylinders, so this kind of injection pump by the cylinder and the highest number of speed restrictions.
With the development of diesel technology, and now forms the emergence of a single type fuel injection pump (known as single pump or pump nozzle), it is actually the above two types of fuel injection pump, “decentralized”, each engine cylinder fuel injection by the respective independent injection units (unit pump or pump nozzle) to complete.
For the single pump, the fuel injection pump and nozzle with a very short between the high-pressure tubing connected to, and for the pump nozzle, the fuel injection pump and nozzle combination as a whole, directly installed in the engine cylinder head, from top camshaft drive home. Their biggest advantage is the ability to reduce or eliminate the flow of diesel and jet process, formed in the high-pressure tubing to the pressure wave effect. Because of this pressure wave will hinder the fuel injection system and the load, speed of a good match, and will increase with the length of high-pressure pipe increases.
Therefore, shortening the length of high-pressure tubing (fuel injection pump of the design) or simply not high-pressure tubing (pump nozzle design) to reduce the pressure between the plunger and the nozzle volume, can be close to the cam contour required for oil law. Especially the pump nozzle, as early as ten years ago has been applied in General Motors, now have precise control of electronic technology, to enhance the performance