Diesel engine injection nozzle

The S.P series of long bore and pintle fuel injector pairs produced by Huahui Oil Pump and Nozzle Company are suitable for 60 - 135 cylinder bore series diesel engines: the product performance is reliable, and its performance indicators rank among the top of similar products in China. It has been praised by users for many years. Quality trustworthy products.

The diesel engine injection nozzle couple consists of precision paired needle valve and valve seat. It is made of cemented carbide material and has a surface finish Ra≤0.1μm to ensure fuel atomization uniformity (particles ≤25μm). The working pressure covers 100-300bar, and the leakage is less than 0.05ml/min. It is suitable for diesel common rail and gasoline direct injection systems. The life span exceeds 2 million cycles. Regular ultrasonic cleaning is required to prevent carbon deposits and clogging.

 

Product Introduction

The Diesel Engine Injection Nozzle is a critical component of the diesel fuel system, engineered to deliver precise amounts of fuel into the engine’s combustion chamber in a finely atomized spray. This ensures efficient combustion, optimized power output, and reduced emissions. Whether used in mechanical systems or advanced common rail injection platforms, the nozzle directly influences engine performance, fuel economy, and environmental compliance. Made with precision manufacturing and high-grade materials, this nozzle is suitable for various diesel engines across automotive, industrial, and agricultural sectors.

 

Product Advantages

Precision Fuel Delivery: Provides accurate fuel injection with consistent spray patterns for efficient combustion and smoother engine performance.

Durability and Reliability: Manufactured using heat-treated, wear-resistant alloy steel to ensure long-lasting operation in harsh conditions.

Improved Fuel Efficiency: Reduces fuel wastage and enhances combustion quality, contributing to lower operational costs and extended engine life.

Emission Reduction: Supports cleaner engine output by improving atomization and combustion, helping meet emission standards like Euro VI and EPA Tier 4.

Versatile Compatibility: Available in a variety of designs to fit both mechanical and electronically controlled diesel fuel systems.

 

Product Applications

The Diesel Engine Injection Nozzle is widely used in various industries and equipment types, including:

Automotive Vehicles: Diesel-powered cars, vans, trucks, and buses, both light-duty and heavy-duty.

Agricultural Machinery: Tractors, harvesters, and irrigation pumps with diesel engines.

Construction Equipment: Loaders, excavators, bulldozers, and compact machinery powered by diesel systems.

Industrial Generators: Diesel gensets used for power backup and continuous power supply in remote or critical locations.

Marine Engines: Fishing boats, ferries, and auxiliary systems with medium-speed diesel propulsion.

 

FAQ

Are you a trading company or a manufacturer?

Manufacturer.

 

What is your MOQ?

100 pieces.

 

Can you design the equipment according to our size?

Yes.

 

What is the function of a diesel injection nozzle?

It atomizes and injects fuel into the combustion chamber, ensuring the proper air-fuel mixture for efficient combustion.

 

How can I tell if the nozzle is faulty or worn out?

Common symptoms include rough idling, black smoke, increased fuel consumption, poor acceleration, and engine misfiring.

 

Can diesel nozzles be cleaned and reused?

Yes, nozzles can often be cleaned using ultrasonic or chemical methods if they are not physically damaged or excessively worn.

 

Are these nozzles compatible with biodiesel?

Many nozzles are compatible with low-percentage biodiesel blends (e.g., B5 or B20), but full compatibility depends on the specific engine and nozzle design.

 

What is the average lifespan of a diesel injection nozzle?

Typically, a well-maintained nozzle lasts between 100,000 to 150,000 kilometers or 3,000 to 5,000 operating hours.

 

Company Introduction

Changzhou Huahui Fuel Injection Equipment Co.,Ltd's main products include S and P series long and short injector assembly and injector nozzle parts. Injection pumps used in 165-1125 single-cylinder engines and plungers and oil delivery valve parts used in injection pumps. In recent years, with the efforts of our scientific research personnel, we have successively developed P series BQ type, PW type, P7 type, P8 type, PE type, PN type, P7100 type, P2000 type, high-pressure common rail series, etc., a total of more than 100 types of plunger parts and electronically controlled single pumps.