Device for reforming fuel through engine waste gas waste heat in catalyst-free low-temperature water adding manner

Abstract

The invention discloses a device for reforming fuel through engine waste gas waste heat in a catalyst-free low-temperature water adding manner. The device comprises an engine air cylinder and an external low-temperature water adding reformer. An inlet of the external low-temperature water adding reformer is connected with an air inlet pipe and a fuel sample inlet pipe. The fuel sample inlet pipe is connected with a fuel injection pump and an evaporation tank. An inlet of the evaporation tank is connected with a water sample inlet pipe. A waste gas pipe passes through the external low-temperature water adding reformer and the evaporation tank through an engine in a wound manner, and engine waste gas waste heat is fully utilized. In the external low-temperature water adding reformer, fresh air and mixed gas of evaporated fuel and water are subjected to low-temperature reforming, a low-temperature product obtained after reforming passes through a reforming gas pipe to enter an engine gas inlet pipe and is mixed with the fresh air again to form even mixed gas to be guided into the engine air cylinder, and the even mixed gas and fuel directly injected in the cylinder are mixed and combusted to achieve mixed gas activity and concentration layering. Due to the fact that a catalyst does not need to be added in the process, the engine operates more efficiently by saving more energy.

Description

technical field [0001] The present invention relates to a novel device for reforming fuel by adding water at low temperature using waste heat of engine exhaust gas, specifically designing an external fuel reformer heated by engine exhaust gas and adding water (T<1000K) to reform fuel. The boundary conditions of the whole unit (temperature, pressure, equivalence ratio, etc.) The working condition is to introduce the reformed low-temperature reformed gas with different activities into the engine to participate in the combustion device system. Background technique [0002] With the continuous deterioration of the global environment and the depletion of energy sources, as far as the automotive industry is concerned, the efficient and clean combustion of internal combustion engines has always been a concern. However, the combustion mode of traditional internal combustion engines obviously cannot meet the requirements of energy and the environment. Therefore, experts and schol...

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Problems solved by technology

[0002] With the continuous deterioration of the global environment and the depletion of energy sources, as far as the automotive industry is concerned, the efficient and clean combustion of internal combustion engines has always been a concern. However, the combustion mode of traditional internal combustion engines obviously cannot meet the requirements of energy and the environment.

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