Supercharged engine intake manifold for integrated intercooler

Abstract

The invention discloses a supercharged engine intake manifold for an integrated intercooler. The supercharged engine intake manifold is used for decreasing the intake temperature of a turbo supercharged engine and improving the intake efficiency of the engine, and comprises an intake manifold body, a metal bushing and an intercooler, wherein the intake manifold body is provided with an intake manifold, a pressure stabilizing chamber and intake branch pipes; the rear end of the pressure stabilizing chamber is connected with the intake branch pipes and the bottom of the pressure stabilizing chamber is communicated with the intake manifold; the metal bushing is embedded in the intake manifold; and the intercooler is integrated in the pressure stabilizing chamber. According to the supercharged engine intake manifold for the integrated intercooler, the intercooler is integrated in the pressure stabilizing chamber of the intake manifold, the pressure loss of cooled gas caused by a long connecting pipeline is avoided, the temperature of supercharged air is effectively reduced, and the charging efficiency of the engine is improved, so that the power performance and economic performance of the engine are improved.

Description

technical field [0001] The invention relates to an intake manifold of a turbocharged engine, in particular to an engine intake manifold integrated with an intercooler, and belongs to the technical field of engines. Background technique [0002] Since the air intake mode of the turbocharged engine has changed from natural suction to forced pressurized air intake, the gas temperature will rise significantly. Excessively high intake air temperature will cause the gas to expand, resulting in a decrease in intake efficiency, which directly affects the performance of the engine. Combustion conditions, so the turbocharged engine needs to reduce the intake air temperature through the intercooler. [0003] At present, most turbocharged engines in China connect the supercharged fresh air to the intercooler of the whole vehicle through pipelines. Due to the long connection pipeline and complicated structure, the pressure loss of the gas after cooling is large, and it is easy to be heat...

AI Technical Summary

Problems solved by technology

[0003] At present, most turbocharged engines in China connect the supercharged fresh air to the intercooler of the whole vehicle through pipelines. Due to the long connection pipeline and complicated structure, the pressure loss of the gas after cooling is large, and it is easy to be heated again, which makes the Reduced charging efficiency of the engine, which in turn affects engine performance

Although some supercharged engines adopt the technology of intake manifold integrated intercooler, the design of the intake manifold has the following defects. First, the intake manifold diversion design is unreasonable, and the gas cannot be effectively divided and then passed through the intercooler The second is that the heat exchange area of ​​the intercooler is not fully utilized, resulting in a partial dead zone in the cooling pipeline; the third is that the high-temperature gas impacts the intake manifold header for a long time after supercharging, which shortens the service life of the intake manifold; the fourth is The cooling water flow of most intercoolers is in the same direction as the intake air, resulting in low gas cooling efficiency

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