Diesel Pump Assembly
Вставка
- Опубліковано 15 вер 2024
- Basic Principles
Purpose of Fuel Injection System
The performance of diesel engines is heavily influenced by their injection system design. In fact, the most notable advances achieved in diesel engines resulted directly from superior fuel injection system designs. While the main purpose of the system is to deliver fuel to the cylinders of a diesel engine, it is how that fuel is delivered that makes the difference in engine performance, emissions, and noise characteristics.
Unlike its spark-ignited engine counterpart, the diesel fuel injection system delivers fuel under extremely high injection pressures. This implies that the system component designs and materials should be selected to withstand higher stresses in order to perform for extended durations that match the engine’s durability targets. Greater manufacturing precision and tight tolerances are also required for the system to function efficiently. In addition to expensive materials and manufacturing costs, diesel injection systems are characterized by more intricate control requirements. All these features add up to a system whose cost may represent as much as 30% of the total cost of the engine.
The main purpose of the fuel injection system is to deliver fuel into the cylinders of an engine. In order for the engine to effectively make use of this fuel:
Fuel must be injected at the proper time, that is, the injection timing must be controlled and
The correct amount of fuel must be delivered to meet power requirement, that is, injection metering must be controlled.
However, it is still not enough to deliver an accurately metered amount of fuel at the proper time to achieve good combustion. Additional aspects are critical to ensure proper fuel injection system performance including:
Fuel atomization-ensuring that fuel atomizes into very small fuel particles is a primary design objective for diesel fuel injection systems. Small droplets ensure that all the fuel has a chance to vaporize and participate in the combustion process. Any remaining liquid droplets burn very poorly or are exhausted out of the engine. While modern fuel injection systems are able to produce fuel atomization characteristics far exceeding what is needed to ensure complete fuel evaporation during most of the injection process, some injection system designs may have poor atomization during some brief but critical periods of the injection phase. The end of the injection process is one such critical period.
Bulk mixing-While fuel atomization and complete evaporation of fuel is critical, ensuring that the evaporated fuel has sufficient oxygen during the combustion process is equally as important to ensure high combustion efficiency and optimum engine performance. The oxygen is provided by the intake air trapped in the cylinder and a sufficient amount must be entrained into the fuel jet to completely mixed with the available fuel during the injection process and ensure complete combustion.
Air utilization-Effective utilization of the air in the combustion chamber is closely tied to bulk mixing and can be accomplished through a combination of fuel penetration into the dense air that is compressed in the cylinder and dividing the total injected fuel into a number of jets. A sufficient number of jets should be provided to entrain as much of available air as possible while avoiding jet overlap and the production of fuel rich zones that are oxygen deficient.
The primary purposes of the diesel fuel injection system are graphically represented in Figure 1.
Figure 1. Main Functions of Diesel Fuel Injection System
Definition of Terms
Many specialized concepts and terms are used to describe the components and the operation of diesel fuel injection systems. Some of the more common of these include [Breitbach 2002][Bosch 2004]:
Thanks wasnt sure of washer position
Achi video hai sir..
Testing pe bhi video bneye sir....
So happy sir please ek Delphi tvs ka b banaye
Nice video he sir or bhi esi videos upload kariye sir please
Badiya👌
Plz edc pump chaking in machine. Now in Toyota company. Has eletrcel cet for pump chaking.
Nice
Super video Dada
Bhai video bhaut achhi hai pr pichhe se extra aawaj bhaut aa rhi hai usme dikt ho rhi hai sunane or....
Please what is the liquid in the dish you are using to clean pieces
Diesel
Sir tata 1616 me eds pump hai pickup lete time bhut jada black smoke de rha h kya solution hai please answer
Please make a video on the BOSCH Common Rail Injector with assembling, dismantling and testing.
acchi lagi
Aap kha se ho
Wow nice video sir
Bhai maine aap ki video dekhi dekhi
dear ais pump ke machine pa calibration ke video bhe share kar daan ,,,, aur toyota 2C engine kaa diesel fuel pump ke calibration ka data daa sakta haa ? i mean kaa pump kaa pressure aur delivery in CC at different RPM ,,,,,
Sir jo pump ke pishe hise pe jo sensor laga hai jab wo kharab ho Jaye to Kya gadi start hogi k nai
Nhi
thank you for video sir...but voice quality is not good double sound coming.
Bhai inline pump par bhi ek aeshi vedio banao..thanks
Please ek pump calibration ka video upload kree
Peace be upon you. I buy a diesel pump, the right of a 2000 Kia Retona
sir g ksb unit kya hai aapne bata aa nahi batana
Is it BOSCH VE pump?
Yes
Ve- EDC
@@FREEEDUCATIONONAUTOMOBILE thanks
Sir crd pump or injector ki video bhi dalo
Nice vedieo sir.
I want to ve edc pump calibration sir
New Holland 3600-2 ka rotary pump missing kar rahai kya problem hai
Sir in line pump kise kehte hai uska bhi video banao na.
App ka helper silent kijiye ..nice video
355 sada diesel pump video
Rrb technician diesel mechanic ki syllabus ke upar video banao na .....sir plz....
Background ki awazain disturb kr rahi hain. Plz in sounds k bghair video launch karain.
Sir please cummins sl 9 engine k bare may kuch jankari de sakte hai please
Sir ultrasonic ki videos bhi upload karo
Price
Sir EDC me Jo saat sensor h pls saat sensor ke baare me deeply bataye pls sir
Governor kaise. Kaam karta hai video b bnaye sir
sar automatec par video trnsmisan
Nice job.
one thing is bothering me. I have a 1.9 ALH and the injection pump is making a strange noise:
ua-cam.com/video/u8rxoJqV7c4/v-deo.html
could be this due to the constant bubles that are circulating in the fuel line?
thanks.
mai bhi kaam jaanta hu
Tata 1109 ka video banano sir
Sir mita distributer assembly ke bareme bathao
Galat hai aap scroo plug nahi kola or k and kf dimension nahi cheq kiya hismese black smoke compliant aatha gadi me sir.
Good sir,nice .....
I want governor control video ikon 1.8 starting to late sir
👌😍👍
Sir rotary pump me dv h ya nhi
Hai
Sir es pammp ka price ky hy market mw
majhe kaam ki taaslah h
प्लीज सेंड Wtsp num।।।
ye kharab maha radi pamp
Bhai watsup no. Kya h apka