Diesel Engine Parts Fuel Injector

• After-sales Service: -
• Warranty: -
• Type: Fuel Injector
• Model NO.: 0445115042=0445115091
• Customization: -
• Level: -
• Size: -
• Weight: -
• Transport Package: /
• Specification: /
• Trademark: Yibolan
• Origin: Shandong, China
• Production Capacity: 50000/Year
• Package Size: 1.00cm * 11.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

  

Question: What is a fuel injector?

A fuel injector is a precision electromechanical component in the fuel supply system of internal combustion engines (both gasoline and diesel engines, especially critical for heavy-duty trucks and engineering vehicles). Its core function is to atomize and deliver a precise amount of fuel into the engine's combustion chamber (or intake manifold) at the optimal timing, to ensure efficient combustion, power output, and emission control.

Core Structure (Heavy-Duty Truck Diesel Fuel Injector as a Typical Example)

Diesel fuel injectors for heavy-duty applications are more durable and high-pressure resistant, with the following key parts:

 

1. Injector Body
    
   A rigid metal housing that holds all internal components, designed to withstand high fuel pressure (up to 2,000 bar or more for modern common-rail systems).
2. Nozzle Assembly
    
   Includes a nozzle tip with tiny, precisely machined holes. This is where fuel is atomized into fine droplets-smaller droplets improve combustion efficiency and reduce emissions.
3. Needle Valve
    
   A precision valve that controls fuel flow. When energized, it lifts to open the nozzle holes; when de-energized, it seals the holes to stop fuel delivery.
4. Solenoid Valve/Electromagnetic Coil
    
   Receives electrical signals from the engine control unit (ECU). It triggers the movement of the needle valve to regulate injection timing and duration.
5. Filter Screen
    
   A small built-in filter that prevents contaminants in the fuel from clogging the nozzle holes, which would cause poor atomization or injector failure.

Working Principle (Common-Rail Fuel Injection System for Heavy-Duty Trucks)

1. The fuel pump pressurizes the fuel and delivers it to a common high-pressure rail (a storage pipe shared by all injectors).
2. The ECU calculates the required fuel quantity and injection timing based on engine parameters (load, speed, temperature, etc.).
3. The ECU sends an electrical signal to the injector's solenoid valve, which opens the needle valve.
4. High-pressure fuel sprays through the nozzle holes into the combustion chamber in a fine mist, mixing with compressed air and igniting (for diesel engines, ignition is spontaneous due to high compression; gasoline engines use spark plugs).
5. When the ECU cuts off the signal, the solenoid valve closes the needle valve, stopping fuel injection instantly.

Key Characteristics for Heavy-Duty Applications

• High Pressure Resistance: Must endure extreme fuel pressure to ensure atomization under heavy-load conditions (e.g., uphill hauling, construction work).
• Precision Control: Accurate fuel delivery is critical to balance power output and fuel economy-even minor deviations can increase fuel consumption or emissions.
• Wear & Corrosion Resistance: The nozzle tip and needle valve are made of hardened steel or special alloys to resist abrasion from fuel impurities and corrosion from sulfur-containing fuels.

Common English Professional Terms

Component/Concept	English Term
Fuel injector	Fuel Injector
Common-rail fuel injection system	Common-Rail Fuel Injection System
Nozzle tip	Nozzle Tip
Needle valve	Needle Valve
Solenoid valve	Solenoid Valve
Engine Control Unit	Engine Control Unit (ECU)
Fuel atomization	Fuel Atomization

 

Detailed Photos

 

Certifications

 

 

Company Profile

•  Qingdao Yibolan Machinery Equipment Co., Ltd. , established in January 2022 , is located in the beautiful coastal city of Qingdao, China. We specialises in the supply of wear parts and maintenance components for commercial vehicles and construction machinery.

Our product range encompasses
filters, 


leaf springs,


brake pads,


brake blocks,


thrust rods,


brake drums,


clutches,


Construction machinery bucket teeth,track plates,four-wheel drive systems,and fasteners.


Since our inception, we have developed our proprietary parts brand (YIWO), with products compatible with
dump trucks,


tractor units,


mixer trucks,


cargo trucks,


excavators,


and bulldozers


from brands including Sinotruk (HOWO, SITRAK), Shaanxi Automobile (Delong, Aolong), FAW , Beiben, Shantui, etc. Our components are renowned for their superior quality and competitive pricing, earning widespread customer acclaim.

Since inception, our annual export volume has reached USD 10 million, primarily serving prominent commercial vehicle and construction machinery parts wholesalers and large fleets across the South Pacific, Africa, the Americas, and Southeast Asia. We remain committed to delivering high-performance, reliable, and cost-effective mechanical components, alongside bespoke solutions tailored to client requirements.

Our company currently operates a 3,000-square-metre warehouse centre, maintaining year-round stock of comprehensive vehicle component sets to meet diverse customer requirements. Additionally, we employ over ten technical engineers with 20 years' experience, providing 24-hour online support. Our core values centre on prioritising customer needs, establishing strong partnerships through precise service and support, and jointly achieving sustainable development. We sincerely welcome global buyers to discuss business opportunities.
 

 

Our Advantages

We have our own metal processing plant with a building area of 10000 square meters. Our team includes designers, engineers, production personnel, welders, mechanical operators, and quality inspectors, providing customized metal processing services for global customers throughout the entire process.

As a leading metal manufacturing supplier in the animal husbandry industry, we focus on common species, root in the dietary, breeding, and living habits. Our research is guided by door barriers, panels, troughs, and incubators, and customize numerous high-quality related products such as Cattle Free Stall, Stainless steel piglet plate, Hot Galvanization Hoof Trimming Chute for Sheep, Horse Corral Panels, etc.

 

FAQ

1.Why should be partner with Qingdao YBL ?

•  Quality 

Deliver consistently superior performance and pursue every possible improvement.

•   Agility 

Identify emerging trends and act quickly to acquire new opportunities.

•  Customer Satisfaction

Anticipate customer needs and exceed their expectations.

 

2. what services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;

Accepted Payment Currency:USD,EUR,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A,Western Union;

Language Spoken:English,Chinese

 

3.How about the delivery time ?

depends the quantity, normally 1 month