In the automotive industry, DYH Y-type seals and hydrogenated nitrile rubber (NBR) ,inflatable seal are two key reinforced inflation seals for car air pumps. Below is a detailed introduction to them:
DYH Y-type seals for car air pumps:
Material characteristics: Made of modified polytetrafluoroethylene (PTFE), with improved material properties through the addition of special fillers. The modified PTFE significantly enhances wear resistance, giving it self-lubricating properties in dry air environments. This material optimization allows the seal to maintain a low coefficient of friction while enhancing mechanical strength and dimensional stability.
Temperature adaptability: Exhibits wide temperature resistance, covering an operating temperature range of -100℃ to 260℃, adapting to the various climatic conditions of car air pump operation.
Pressure capacity: Maximum operating pressure up to 20MPa, meeting the seal inflatable requirements of car air pumps under high-pressure conditions, maintaining structural integrity and functionality.
Media Compatibility: Specifically designed for air media environments, Reinforced fabric inflatable seal maintains stable material performance in the clean or compressed air working environment of automotive air pumps, without chemical degradation or performance decline due to media contact.
Speed Adaptability: Meets the high-speed operation requirements of automotive air pumps, with a maximum speed of 15m/s, ensuring reliable sealing during rapid reciprocating motion.
Application Scenarios: Primarily used in the sealing systems of various automotive air pumps, providing a sealing function at the piston or piston rod. Its Y-shaped structure achieves a bidirectional sealing effect, automatically adjusting the lip contact pressure to maintain stable sealing performance in response to pressure changes.
Hydrogenated Nitrile Butadiene Rubber inflatable Seals
Material Characteristics: Based on hydrogenated nitrile butadiene rubber (HNBR), it possesses excellent properties such as high temperature resistance, aging resistance, and oil resistance.
Applications: Widely used in critical components such as automotive engines, transmissions, and braking systems. For example, engine crankshaft oil seals and valve stem seals using hydrogenated nitrile butadiene inflatable rubber seals effectively seal engine oil, preventing oil leakage that could lead to insufficient engine lubrication and reduced power.
Development Trends: As the automotive industry explores new energy and lightweight technologies, hydrogenated nitrile rubber gas seals also need continuous upgrading. In the field of new energy vehicles, leveraging its material advantages and combining new design concepts, it can optimize aspects such as electrolyte resistance and hydrogen corrosion resistance, contributing to the upgrading of sealing systems in new energy vehicles and ensuring vehicle safety and range.
