Supercharger air inlet connecting pipe and engine

Abstract

The invention discloses a supercharger air inlet connecting pipe and an engine, and belongs to the technical field of automobiles. The supercharger air inlet connecting pipe comprises a first passagefor air circulation and a second passage, a first inlet for air inflow and a first outlet for air outflow are formed in the first passage, the first outlet is connected with a supercharger air inlet,and the inner diameter of the first outlet is the same as that of the turbocharger air inlet; and the second passage is used for the exhaust gas circulation in a crankcase, the second passage communicates with the supercharger, the second passage and the first passage are arranged at intervals, and an inclination angle alpha is arranged between the wall surface, close to the first passage, of thesecond passage and the horizontal direction, a third passage for the circulation of cooling water in the engine is arranged on the peripheral wall of the second passage, and the third passage is usedfor the peripheral wall walling of the second passage. The supercharger air inlet connecting pipe has the advantages of avoiding icing in the turbocharger air inlet connecting pipe, and has the characteristics of simple structure.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a supercharger intake joint and an engine. Background technique [0002] Since the engine adopts an open crankcase ventilation system, the exhaust gas in the crankcase will be directly discharged into the atmosphere, which is likely to cause environmental pollution, so the current engine generally adopts a closed crankcase ventilation system. In an engine with a closed crankcase ventilation system, it is necessary to introduce the exhaust gas in the crankcase into the intake pipe for air circulation, and then enter the supercharger through the intake pipe for compression, and the supercharger can Increase the density of the air so that more air can be filled into the cylinder of the engine, thereby increasing the power of the engine; since the exhaust gas in the crankcase is reused, it will not cause environmental pollution. [0003] However, in cold regions, since the tempe...

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Problems solved by technology

However, for the electric heating of the intake pipe, it is necessary to arrange the relevant components, circuits and control units of the electric heating, and the cost is relatively high; and the electric heating needs to continuously consume the electric energy of the car, resulting in an increase in the fuel consumption of the car; and it is still easy to appear Cold air may flow into the exhaust gas pipeline in the crankcase, resulting in ice formation in the exhaust gas pipeline and blockage of the exhaust gas pipeline, resulting in pressure imbalance in the crankcase

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