Fuel injection tube is a crucial component in the fuel injection system of internal combustion engines, responsible for injecting fuel into the combustion chamber in a finely atomized spray. This facilitates more efficient combustion and improves fuel economy. Below is a detailed overview of the fuel injection tube along with the commonly adopted standards and materials for steel pipes.

 

 

1. Injection Precision: The design of the fuel injection tube aims to achieve highly precise fuel injection, ensuring uniform mixing of fuel with air to enhance combustion efficiency.

 

2. Atomization Effect: The tube is designed to atomize fuel into tiny particles, increasing its surface area and promoting better combustion, thereby reducing exhaust emissions.

 

3. Pressure Resistance: Due to the high-pressure injection involved in fuel injection systems, the tube must exhibit sufficient pressure resistance to prevent leaks or damage.

 

4. Corrosion Resistance: Since fuel may contain corrosive substances, the fuel injection tube typically employs corrosion-resistant materials to ensure long-term reliability.

 

 

Common materials for fuel injection tubes include:

 

 

 

Standards are usually established by relevant automotive engineering organizations or international standardization bodies, such as:

 

- SAE Standards (Society of Automotive Engineers): SAE J2044 may apply to connectors, while SAE J2045 may be relevant to injection tubes.

 

- ISO Standards (International Organization for Standardization): ISO 8535-1 and ISO 8535-2 are applicable to steel pipes in diesel fuel systems.