Connecting device and engine for supercharger and exhaust pipe

Abstract

The invention discloses a connection device between a supercharger and an exhaust pipe and an engine, wherein the connection device between the supercharger and the exhaust pipe comprises: a first flange used to connect with the supercharger; The second flange connected with the pipe; the liner arranged in the center hole of the second flange, and there is also a gap between the outer wall of the liner and the inner wall of the second flange; between the liner and the first flange There is also a first metal superimposed net through which high-temperature gas passes. Because the high-temperature gas generated when the engine is working can enter the gap formed between the outer wall of the liner and the inner wall of the second flange from the first metal superimposed mesh, thereby effectively releasing the high-temperature gas to the exhaust pipe and turbocharger. The thermal expansion of the compressor releases the thermal stress, solves the phenomenon of engine leakage caused by the expansion joint rupture, and improves the reliability of the engine.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a connection device between a supercharger and an exhaust pipe and an engine. Background technique [0002] At present, when the turbocharger is supported by an intermediate body, in order to avoid the over-positioning phenomenon between the exhaust pipe and the turbocharger, and at the same time release the thermal expansion problem between the exhaust pipe and the worm gear casing caused by high temperature, usually the exhaust pipe An expansion joint is added between the gas pipe and the supercharger to solve the problems of over-positioning and thermal expansion. [0003] As the engine power and exhaust temperature continue to increase, due to the poor rigidity of the expansion joint, the failure rate continues to increase under the action of high-frequency vibration and high temperature, resulting in serious engine leakage and performance degradation, so the expansion joint ...

AI Technical Summary

Problems solved by technology

[0003] As the engine power and exhaust temperature continue to increase, due to the poor rigidity of the expansion joint, the failure rate continues to increase under the action of high-frequency vibration and high temperature, resulting in serious engine leakage and performance degradation, so the expansion joint has to be replaced. Solve problems that not only reduce engine reliability, but also increase repair costs

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