zexel fuel injection pump NJ-VP4/11E1250R038 VE-type distributor pump

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#zexel fuel injection pump#

#VE-type distributor pump#

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What is VE pump?

The purpose of the fuel injection pump is to deliver an exact metered amount of fuel, under high pressure, at the right time to the injector. The injector, unlike in a gasoline engine, injects the fuel directly into the cylinder or a prechamber connected to the cylinder. 

The VE in the name of the Bosch pump used in the VW diesels and many other small diesel engines stands for "Verteiler", which is German for distributor or divider. The other common kind of injection pump is the inline pump. The difference between them is that the "Verteiler" VE pump has one fuel metering plunger, and a mechanism (the "Verteiler"/distributor) to send the fuel to the right cylider. The inline pump has one plunger for each cylinder. 

China-Lutong as China's leading diesel injection system specialists with over 20 years experience, we hope to meet you in our booth and have a meeting. This largest international automotive aftermarket trade show in the Middle East, Automechanika Dubai acts as the central trading link for markets that are difficult to reach connecting the wider Middle East, Africa, Asia and key CIS countries. Please kindly take a note of our stand place in the fair:

Our Diesel Fuel Injection Spare Parts application Engines include SCANIA, VOLVO, MAN, MERCEDES BENZ, DAF, FORD, CUMMINS, IVECO, TOYOTA, ISUZU, MITSUBISHI, NISSAN, DONGFENG FAW, FOTON, JAC, CUMMINS, BUS TRUCK PICK UP PARTS, JOHN DEERE, FIAT, MASSEY FERGUSON, AND AGRICULTURE CONSTRUCTION MACHINE DIESEL and so on...

The merits of the common rail fuel injection system architecture have been recognized since the development of the diesel engine.Lower fuel pump peak torque requirements. As high speed direct injection (HSDI) engines developed, more of the energy to mix the air with fuel came from the fuel spray momentum as opposed to the swirl mechanisms employed in older, IDI combustion systems. Only high pressure fuel injection systems were able to provide the mixing energy and good spray preparation needed for low PM and HC emissions. To generate the energy required to inject the fuel in approximately 1 millisecond, the conventional distributor pump would have to provide nearly 1 kW of hydraulic power in four 1 ms bursts per pump revolution, thus placing considerable strain on the drive shaft. One of the reasons behind the trend toward common rail systems was to minimize the maximum pump torque requirement. While the power and average torque requirements of the common rail pump were similar, high pressure fuel delivery is to an accumulator and thus the peak flow rate (and peak torque required to drive the pump) does not have to coincide with the injection event as is the case with the distributor pump. Pump discharge flow can be spread out over a longer portion of the engine cycle to keep pump torque demand more even.

Improved noise quality. DI engines are characterized by higher peak combustion pressures and, thus, by higher noise than IDI engines. It was found that improved noise and low emissions were best achieved by introducing pilot injection(s). This was most easily realized in the common rail system, which was capable of stable deliveries of small pilot fuel quantities over the entire load/speed range of the engine.

Return Policy:

At CHINA-LUTONG we work for your satisfaction and have a liberal 30 day returnpolicy. We create each product page to include the information you need to know to? make an informed decision that will satisfy your needs. We provide phone and email? support to answer any questions you may have before making your purchase. Our staff? is friendly and knowledgeable with experience in the Heavy Machinery industry.Please contact us if you have any concerns regarding your purchase.Returned parts within 30 days are subject to a restocking fee of up to 30% and? return shipping costs. The part must be in an unused condition and in its original? packaging. If you need to return a part or replace it with another one it is best? to contact us before returning it. We want to work with you to maximize your? satisfaction.

Why choose us?

We serve our customers in a courteous and professional manner.In pursuit of excellence,we also establish an efficient logistics and reaction system.We ensure? that all the questions could be answered in the shortest time with satisfaction,all? the products be delivery in stipulated frame of time.In general,we are not only? producing our products,but also provide the full after-sale service and complete? solution.

CHINA-LUTONG is specialize in providing high quality VE pump as below.