Multi-mode multi-fuel combustion system

A combustion system and multi-fuel technology, applied in the system field of internal combustion engine technology, can solve problems such as poor combustion efficiency, unstable ignition and combustion, high hydrocarbon and carbon monoxide emissions, and achieve extended operating range, high power density, and reduced emissions Effect

Inactive Publication Date: 2011-12-14
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multi-mode multi-fuel combustion system, which can avoid ignition and combustion instability, poor combustion efficiency, hydrocarbon and carbon monoxide emissions in the low-t

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Embodiment Construction

[0017] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following implementation. example.

[0018] like figure 1 As shown, this embodiment includes: a diesel fuel tank 1, a diesel filter 2, a diesel high-pressure common rail injection system 3, a first auxiliary fuel tank 4, a first common rail port injection system 5, a second auxiliary fuel tank 6, Two common rail port injection system 7, cooling exhaust gas recirculation device 8 and electronic control unit 9, wherein: both ends of diesel filter 2 are respectively connected to diesel fuel tank 1 and diesel high pressure common rail injection system 3, cooling exhaust gas recirculation device 8 respectively It is communicated with the exhaust pipe, air mi...

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Abstract

A multi-mode multi-fuel combustion system in the technical field of internal combustion engines, comprising: a diesel fuel tank, a diesel filter, a diesel high-pressure common rail injection system, a first auxiliary fuel tank, a first common rail gas port injection system, a second auxiliary fuel tank, Second common rail port injection system, cooled exhaust gas recirculation and electronic control unit. The invention can avoid the problems of ignition and combustion instability, poor combustion efficiency, and high emissions of hydrocarbons and carbon monoxide in the low-temperature cold start stage of the spark ignition combustion mode; it can realize smooth switching of various modes; as long as the existing engine is simply operated High-efficiency and ultra-low emissions in the full load range are achieved through technological transformation.

Description

technical field [0001] The invention relates to a system in the technical field of internal combustion engines, in particular to a multi-mode multi-fuel combustion system. Background technique [0002] The traditional diesel engine adopts the working mode of direct injection in the cylinder near the top dead center, high compression ratio, and spontaneous combustion. Features. The traditional gasoline engine adopts port injection homogeneous charge, low compression ratio, spark ignition, and most working conditions work under the condition of equivalence ratio. Combined with three-way catalysis, a very low emission level can be obtained, but the thermal efficiency is not high. On the other hand, due to the international energy shortage, countries around the world are developing and researching alternative fuels for internal combustion engines. Methanol, ethanol, butanol, natural gas, liquefied petroleum gas, and dimethyl ether have been extensively researched and initially ...

Claims

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Application Information

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IPC IPC(8): F02D19/08F02M25/07F02D43/00F02M26/13
CPCY02T10/121Y02T10/12
Inventor 吕兴才黄震吉丽斌马骏骏侯玉春
Owner SHANGHAI JIAO TONG UNIV
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