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Novel concept engine with double fuel multiple combustion mode

A combustion mode and engine technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve the problems of difficult engine cold start, high HC and CO emissions, and achieve high-efficiency and low-pollution combustion, improve combustion, and improve thermal efficiency. Effect

Inactive Publication Date: 2004-06-16
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

At present, the main problems faced by HCCI are: the control of ignition timing in the range of engine operating conditions, the expansion of the range of engine operating conditions, the difficulty of engine cold start, and high HC and CO emissions.

Method used

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  • Novel concept engine with double fuel multiple combustion mode
  • Novel concept engine with double fuel multiple combustion mode
  • Novel concept engine with double fuel multiple combustion mode

Examples

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Embodiment Construction

[0015] Such as figure 1 , 2 , Shown in 3: a new concept engine with dual fuel and multiple combustion modes, characterized in that: by engine 1, natural gas (CNG) storage tank 2, dimethyl ether (DME) storage tank 3, three-way catalytic converter 4 and electronic The control unit ECU is composed of; the natural gas storage tank and the dimethyl ether storage tank are respectively connected with the natural gas solenoid valve 5 and the dimethyl ether solenoid valve 6 through the pressure reducing valve 8 . Two solenoid valves are installed on the engine intake manifold 11, and are connected with the engine intake passage 9; the three-way catalytic converter is installed on the engine exhaust pipe 7; the engine exhaust pipe is connected with the EGR valve, and the EGR valve is connected with the intake pipe. airway connection;

[0016] Such as Figure 5 Shown: The input terminal of the electronic control unit receives the engine operating condition parameter signal output by t...

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Abstract

A new concept hybrid multiple combustion mode engine comprising a motor, a double fuel tank, a ternary catalytic converter and an electronic control unit, wherein double fuel tanks connects to their solenoid valves respectively, the ternary catalytic converter is mounted on the engine exhaust pipe which connects to EGR valve, the EGR valve is connected with the intake, the input end of the electronic control unit receives various signals send from the engine, the output end connects to the solenoid valve, sparking plug and EGR valve.íí

Description

[0001] Field: [0002] The invention belongs to an engine, in particular to a new concept engine with dual fuel and multiple combustion modes. Background technique: [0003] In response to the increasingly scarce oil resources and increasingly stringent automobile emission regulations, people have been looking for new technologies for efficient and clean combustion and new alternative fuels for internal combustion engines. Traditional engines are divided into compression ignition engines (diesel engines) and spark ignition engines (gasoline engines) according to the ignition characteristics of fuel. Diesel engines belong to fuel spray diffusion combustion. Due to the inherent nature of heterogeneous combustion, diesel engines have soot and NOx emissions. minimum limit. The gasoline engine belongs to the premixed homogeneous combustion and is ignited by electric spark. Due to the limitations of many factors such as gasoline characteristics and knocking, the gasoline engine ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00
Inventor 尧命发郑尊清汪洋郑贵忠
Owner TIANJIN UNIV
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