Isothermal Compression Preheating Internal Combustion Engine
It is a technology of isothermal compression and internal combustion engine, which is applied in the direction of mechanical equipment, machines/engines, etc. It can solve the problems of no utilization, consumption of compression work, consumption of mechanical structure resistance, etc., and achieve the effect of increasing temperature, reducing energy loss, and reducing exhaust emissions
Active Publication Date: 2020-12-04
山西利国磁性材料有限公司
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Problems solved by technology
The exhaust gas temperature of the existing internal combustion engine exceeds 500°C, which is not utilized
In addition, during the compression stroke, the gas compression will generate heat, which means that additional compression work needs to be consumed.
In addition, there are resistance consumption caused by mechanical structure, etc.
Method used
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Embodiment approach 1
[0025] Embodiment 1: there are 2 working cylinders, plus 2 air compression cylinders. 4 cylinders in total. The air is compressed in 2 stages. The inner diameter of the special cylinder for 2-stage air compression is 45~60% of that of other cylinders. The other 3 cylinders have the same inner diameter. Under the design working conditions, the thermal efficiency can reach 80%, and after deducting the mechanical loss and auxiliary machine consumption of 10%, the total efficiency is 70%. This scheme is suitable for the transformation of existing internal combustion engines.
[0026] Scheme 2: There are 2 working cylinders, 3 compression cylinders, one compression cylinder, two front compression cylinders, a total of 5 cylinders, and the air is compressed in 3 stages. The inner diameters of the 2 dedicated cylinders for doing work are the same. The inner diameter of the first stage air compression cylinder is 100~110% of that of the power cylinder. The inner diameter of the ...
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An isothermal compression preheating internal combustion engine, comprising: an acting cylinder (12) and compression cylinders (17, 18, 19); compression air coolers (4, 21) are disposed on the compression cylinders (17, 18, 19), and a regenerative heat exchanger (5) is disposed behind an exhaust valve (11) of the acting cylinder (12), compressed air of the compression cylinders (17, 18, 19) entering the acting cylinder (12) by means of the regenerative heat exchanger (5). Compression and action are completed in different cylinders, and by means of the multi-stage operation of the compression cylinders (17, 18, 19), air is isothermally compressed and then preheated by means of exchanging heat with exhaust gas before entering the dedicated acting cylinder. Thus, thermal efficiency of an engine is increased, energy waste is reduced, exhaust emissions are reduced, and air pollution is reduced while efficiency is increased.
Description
technical field [0001] The invention belongs to the technical field of internal combustion engines, in particular to an isothermal compression preheating type internal combustion engine. Background technique [0002] An internal combustion engine is a kind of power machinery, which is a heat engine that directly converts the heat energy released by burning fuel inside the machine into power. At present, what we commonly use is mainly that the piston internal combustion engine is the most common. The working principle of the piston internal combustion engine is to mix fuel and air and burn it in its cylinder, and the heat energy released makes the cylinder generate high-temperature and high-pressure gas. The expansion of the gas pushes the piston to do work, and then the mechanical work is output through the crank-connecting rod mechanism or other mechanisms to drive the driven machinery to work. The common ones are diesel engines and gasoline engines. When the piston recip...
Claims
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IPC IPC(8): F02B75/40
CPCF02B75/40
Inventor 邹国泉张英辰
Owner 山西利国磁性材料有限公司