Rubber pipe for turbo-charging air pump and manufacturing method thereof

Abstract

The invention discloses a rubber pipe for a turbo-charging air pump. The rubber pipe comprises an inner rubber pipe, a fibre filament enhancement layer and an outer rubber layer in sequence from inside to outside; the fibre filament enhancement layer is an aramid fibre filament layer; aramid fibre filaments are woven on the inner rubber layer in an inwards concave grid form; a clamping part is arranged at each of the two ends of the rubber pipe; each clamping part comprises a butting groove and a bayonet; a sealing pad is arranged on the inside wall of each butting groove; an enhancement layer is arranged at the bottom of each butting groove; each bayonet is formed in the corresponding enhancement layer; each bayonet is communicated with the corresponding butting groove. The rubber pipe for the turbo-charging air pump has good high-temperature resistance, aging resistance, pulse performance, a small inside diameter, and a complex space shape; the tensile strength and the stability of the adhesion force of the product are beneficially improved; the product has very good competitive advantages; the actual using requirements are met.

Description

technical field [0001] The invention relates to a rubber tube for a turbocharged air pump and a manufacturing method thereof, belonging to the technical field of auto parts and manufacturing techniques. Background technique [0002] Due to the continuous exploitation of global oil resources and the long-term threat caused by the global oil supply chain, global oil prices continue to rise. In order to reduce vehicle fuel consumption, occupy market share, and increase fuel economy performance, domestic OEMs use improved turbocharged diesel engines. , so as to save energy and increase efficiency. The engine is the heart of the car. The power of the car depends on the output power of the engine. The high power of the engine consumes a lot of fuel. In order to continue to improve, domestic OEMs have changed their development direction and learned from the successful experience of foreign countries. The engine pursues a high rise rate, and the turbocharged engine Become the direc...

AI Technical Summary

Problems solved by technology

[0004] "High temperature" is the biggest test that the turbocharger faces when it is running. When the turbine is running, the first thing it comes into contact with is the high-temperature exhaust gas (the first heat source) discharged from the engine, which pushes the turbine impeller and drives the compressor impeller on the other side. Synchronous operation; the rotation speed of the entire blade wheel shaft is 120000-160000rpm, so the heat generated by the high-speed rotation of the turbine shaft is amazing (the second heat source), plus the temperature raised by the air compressed by the compressor impeller (the third heat source), These three become the most severe high-temperature burden of the turbocharger; the turbocharger becomes an independent working system integrating high-temperature components, so "heat dissipation" is very important for the turbocharger, and there is a special engine oil inside the turbocharger Road (heat dissipation and lubrication), many of them are designed with organic oil passage and water passage at the same time, through oil cooling and water cooling to reduce the temperature of the supercharger; the engine is equipped with an intercooler to reduce the temperature of the compressed air and increase the density , to prevent the engine from knocking; the larger the area and thickness of the intercooler, the stronger its heat dissipation capability; because of the larger area and thickness, the number, length and cooling blades of the small flat tubes in it will increase accordingly, and the intercooler The high-temperature compressed air inside and the atmosphere outside the intercooler have more contact area and contact time, the area and time of heat exchange (radiation) are more sufficient, and the cooling effect is better; although the large-capacity intercooler has better Cooling efficiency, but it lengthens the heat dissipation path and increases the air intake capacity, which will bring relative pressure loss, and TurboLag is easy to become la

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