Car Fuel Injector Upper Seal
|
Material |
NBR |
| Density | 1.0 - 1.2 g/cm³ |
| Hardness | 20 - 95 Shore A |
| Tensile strength | 10 - 30 MPa |
| Elongation | 200 - 600% |
Certification standards
ISO 9001 is a quality management system certification that ensures uniform procedures and guidelines for quality control. It is required for the upper seal of a car fuel diesel injector. ASTM D2000 is a rubber material specification standard that outlines the physical, chemical, and other characteristics of rubber materials. SAE J200 is a rubber material specification standard created by the Society of Automotive Engineers, outlines performance standards and categorization for automotive applications. Vehicle fuel diesel injector upper seal requirements must meet SAE J200 regulations. OEM certification is required for seal manufacturers to meet specific car make and model specifications.
Introduce
The car fuel injector upper seal is a crucial component of an engine, responsible for high-pressure fuel injection into the cylinder for combustion and power. Its sealing ring, located on its top section, ensures the engine's intake route and upper portion are sealed to prevent gas and fuel leaks. The seal must be resistant to high temperatures, corrosion, and wear to prolong the injector's service life and prevent leaks during high-pressure fuel injection. A broken or aging sealing ring can hinder the engine's normal operation, allowing air or gasoline to enter the injector. Regular inspection and replacement of the upper sealing ring is essential for maintaining engine performance and reliability.
Advantage and function
The car fuel injector upper seal is crucial for sealing between the injector and engine's intake duct, preventing gas and fuel leaks and maintaining a stable high-pressure fuel injection system. It must be oil-resistant, composed of rubber material that can withstand fuel degradation and corrosion. The sealing ring must withstand high temperatures, ensuring it remains stable and maintains its sealing performance. It must also have specific wear resistance to withstand vibration and friction during engine operation, ensuring long service life and dependability. The dimensional accuracy of the seal is vital, as it must match the mating dimensions of the engine and injector to ensure it fully covers the contact surface and produces a satisfactory sealing effect. Overall, the seal's performance, durability, and dimensional accuracy are essential for a reliable and efficient fuel injection system.
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