Fuel spraying system for utilizing heat pipe technology to extract heat vaporized diesel oil from exhaust gas

Abstract

The invention discloses a fuel spraying system for utilizing a heat pipe technology to extract heat vaporized diesel oil from exhaust gas. The fuel spraying system comprises a cylinder, a piston (1), a cylinder cover (4), an electric control oil sprayer (5), a gas inlet channel (2), an exhaust channel (17), a gas inlet valve (3) and an exhaust valve (14), wherein a diesel oil vaporizing sprayer (9) and a diesel oil vaporizer (24) are arranged on the cylinder cover (4); the diesel oil vaporizer (24) comprises a heat pipe (15) and a vaporizing cavity (23); the heat pipe (15) is composed of a heat pipe vaporizing section (16), a heat pipe heat-insulating section (18) and a heat pipe condensing section (20); the diesel oil vaporizer (24) is mounted on the cylinder cover (4); the heat pipe vaporizing section (16) is arranged on the exhaust channel (17); the heat pipe condensing section (20) is arranged in a vaporizing chamber (22); the heat pipe heat-insulating section (18) is arranged on the cylinder cover (4); and the electric control oil sprayer (5) is communicated with the vaporizing cavity (23). With such a structure, the fuel spraying system provided by the invention has the advantages that the structure is simple and compact, the heat of the exhaust gas is utilized to vaporize the diesel oil, the forming quality of the mixed gas in the cylinder is good, the burning efficiency is high and the effects of energy conservation and emission reduction are obvious.

Description

technical field [0001] The invention relates to a fuel injection system for a diesel engine, in particular to a fuel injection system that uses heat pipe technology to extract heat from exhaust gas to vaporize diesel. Background technique [0002] As the world's oil resources are increasingly depleted and global environmental problems are becoming more and more serious, diesel engines, which are widely used as the main source of energy consumption and emissions, need to develop their energy-saving and emission-reduction technologies. [0003] The diesel fuel injection system is the core component of the diesel engine, which determines the fuel consumption and emissions of the diesel engine. Due to the high viscosity and high cetane number of diesel oil, it is necessary to spray diesel oil into the cylinder of the diesel engine at high pressure to fully atomize the diesel oil and then mix it with air for combustion. The combustion of a conventional diesel engine is a combust...

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Problems solved by technology

In response to the above problems, many manufacturers and people of insight have invested a lot of manpower and material resources in development and research, but so far no ideal products have come out

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