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Pressure increased diesel wet air-diesel homogeneous combustion system

A homogeneous combustion, diesel engine technology, applied in the direction of charging system, mechanical equipment, engine components, etc., can solve the problem of no improvement in particle emissions, and achieve the effect of easy control and easy preparation

Inactive Publication Date: 2003-08-06
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the combustion system of this test is the spray-diffusion combustion of a conventional diesel engine, so there is basically no improvement in particle emissions

Method used

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  • Pressure increased diesel wet air-diesel homogeneous combustion system
  • Pressure increased diesel wet air-diesel homogeneous combustion system

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Experimental program
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Embodiment Construction

[0012] The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0013] As shown in Figure 1, the present invention mainly comprises: turbocharger 1, fuel injection nozzle 2, exhaust gas recirculation pipe 3, Venturi pipe 4, mixing chamber 5, humidifier 6, diesel engine 7, water pump 8, water tank 9 , Preheating heat exchanger 10, reheating heat exchanger 11, control valves 12-15 and connecting pipelines, etc. The inlet end of the turbocharger 1 is connected to the atmosphere, the outlet end of the turbocharger is connected to the air inlet at the lower end of the humidifier 6, the humid air outlet at the upper end of the humidifier 6 is connected to the inlet of the Venturi tube 4, and the outlet of the Venturi tube 4 It is connected with the intake pipe of the diesel engine 7; the inlet of the exhaust gas recirculation pipe 3 communicates with the exhaust pipe of the diesel engine 7, and a diesel / exhaust ...

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PUM

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Abstract

The supercharged diesel engine wet air-diesel oil homogeneous combustion system is characterized by that it adopts the Venturi tube and waste gas recirculation pipe device to introdue small quantity of waste gas, utilizes the high temperature of waste gas to quickly evaporate fuel oil, and introduces it into cylinder from tail end of air intake pipe of diesel engine. It also uses air humidifying device to humidity pressurized air and control air temperature, and utilizes the moisture capacity of air to control temperature and composition of working medium so as to indirectly control combustion process. Said system can be used for easily preparing diesel oil / air mixed gas, can be self-regulated, and can implement low-discharge combustion.

Description

technical field [0001] The invention relates to a homogeneous combustion system of a supercharged diesel engine, especially a humid air-diesel homogeneous combustion system of a supercharged diesel engine that prepares diesel / air premixed gas by humidifying the intake air and injecting oil into the exhaust gas recirculation pipe The system belongs to the technical field of internal combustion engines. Background technique [0002] In order to meet the increasingly stringent emission regulations, diesel engines are facing great challenges. Various diesel engine manufacturers and research institutes have carried out research on reducing diesel engine emissions, including research on alternative fuels, combustion systems, post-processing, electronic control, etc. As far as the combustion system of a diesel engine is concerned, its combustion method is diesel spray compression ignition, and the distribution of oil and gas in the cylinder is very uneven. This uneven combustion p...

Claims

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Application Information

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IPC IPC(8): F02M25/035
Inventor 邓康耀崔毅
Owner SHANGHAI JIAO TONG UNIV
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