Intake temperature control device

Abstract

The invention discloses an intake temperature control device, belonging to the technical field of machine design. The intake temperature control device comprises an intake pipe, an engine, an exhaust pipe, a gas compressor, a turbine, a connecting pipe, a volume cavity, a moving body and a spring, wherein the moving body is arranged in the volume cavity and is in sealed contact with the inner wall surface of the volume cavity, two through tubes penetrate through the upper wall surface and the lower wall surface of the moving body, and both ends of the spring are respectively connected with the right wall surface of the moving body and the right wall surface of the volume cavity. When the engine is in a low-speed work condition, the moving body is moved leftwards in the volume cavity, a second connecting pipe is communicated with a fifth connecting pipe, the intake air is heated through the exhaust waste heat, and the cold startup performance of the engine is better; when the engine is in a high-speed work condition, the moving body is moved rightwards in the volume cavity, and the second connecting pipe and the fifth connecting pipe are separated. The intake temperature control device, provided by the invention, has the advantages of reasonable design and simple structure, and is suitable for an intake heating system of the engine provided with a turbocharger.

Description

technical field [0001] The invention relates to an intake and exhaust system in the technical field of mechanical design, in particular to an intake air temperature control device with a turbocharger. Background technique [0002] Harmful emissions from engines are a major source of air pollution. With the increasing importance of environmental protection, the goal of reducing harmful emissions from engines has become an important direction for engine development in the world today. With the world's consumption of petroleum products increasing year by year, the international oil price remains high, and the economy of the engine is becoming more and more prominent. Therefore, it is the primary task of engine designers to carry out research on the control methods of engine harmful emissions. By heating the intake system of the engine, it can not only improve the cold start performance of the engine under harsh conditions, but also reduce the exhaust pollution of the engine du...

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Problems solved by technology

[0003] After searching the existing technical documents, it is found that Chinese patent application number 200610062955.5, patent name: an engine air intake heating device, this patent technology provides an engine air intake heating device, which can better improve the cold start work of the engine However, the heating of the intake air is realized by special electric heating, which makes the heating system more complicated

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