Device for reforming fuel at low temperature through exhaust gas residual heat of engine

Abstract

The invention discloses a device for reforming fuel at low temperature through exhaust gas residual heat of an engine. The device comprises an engine cylinder and an externally-arranged low-temperature fuel reformer, an air inlet pipe and a fuel sample injection pipe are connected to an inlet of the externally-arranged low-temperature fuel reformer, and the air inlet pipe is provided with a gas flowermeter; a fuel injection pump and a fuel vaporization tank are connected to the fuel sample injection pipe, and an outlet of the externally-arranged low-temperature fuel reformer is provided with a thermocouple and connected with an engine gas inlet pipe through a reforming gas pipe. According to the device, full utilization of the exhaust gas residual heat of the engine is achieved by winding an engine exhaust gas pipe around the externally-arranged low-temperature fuel reformer and the fuel vaporization tank; a low-temperature product obtained after reforming enters the engine gas inlet pipe through the reforming gas pipe and is mixed with fresh air again to form uniform mixed gas, the uniform mixed gas is introduced into the engine cylinder and burnt with fuel directly sprayed in the cylinder in a mixed mode, mixed gas activity and concentration layering is achieved, and due to the fact that a catalyst does not need to be added in the process, the engine can run more efficiently in a better energy-saving mode.

Description

technical field [0001] The present invention relates to a new type of device for reforming fuel at low temperature by utilizing waste heat of engine exhaust gas, and specifically designs an external fuel reformer heated by engine exhaust gas to reform fuel at low temperature (T<1000K), by controlling the external reformer The boundary conditions (temperature, pressure, equivalence ratio, etc.) reform the fuel into low-temperature oxidation products (aldehydes, ketones, peroxides, etc.) The reformed gas is introduced into the engine to participate in the combustion device system. Background technique [0002] At present, the internal combustion engine still occupies an absolute dominant position in transportation. However, with the gradual depletion of energy and the deterioration of the environment in recent years, the combustion mode of the traditional internal combustion engine obviously cannot meet the requirements of energy and the environment. Therefore, as far as i...

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Problems solved by technology

[0002] At present, the internal combustion engine still occupies an absolute dominant position in transportation. However, with the gradual depletion of energy and the deterioration of the environment in recent years, the combustion mode of the traditional internal combustion engine obviously cannot meet the requirements of energy and the environment.

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