Oil-gas dual-electric-control dual-fuel engine control system

A dual-fuel engine and control system technology, applied in engine control, fuel injection control, electrical control, etc., can solve the problems of inability to meet marine engines, poor emissions, and low thermal efficiency.

Pending Publication Date: 2021-07-20
淄柴机器有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The engine’s dual-fuel mode has low thermal efficiency and poor emissions, which cannot meet the latest emission standards for marine engines

Method used

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  • Oil-gas dual-electric-control dual-fuel engine control system

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Embodiment Construction

[0028] The attached drawing shows the best embodiment of the control system of the oil-gas dual electronic control dual-fuel engine. The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] attached by figure 1 As shown, an oil-gas dual electronic control dual fuel engine control system includes an electronically controlled pump 2 , a gas injection solenoid valve 6 , and a gas control device 12 and a fuel control device 15 fixed on the engine 1 . The gas control device 12 and the fuel control device 15 work together through CAN communication.

[0030] The gas control device 12 and the fuel control device 15 are electrically connected to the control device of the engine, and the control units of the gas control device 12, the fuel control device 15 and the engine control device all adopt ECU.

[0031] The gas control device 12 is electrically connected to the gas injection solenoid valve 6 through a communication h...

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Abstract

The invention relates to an oil-gas dual-electric-control dual-fuel engine control system. The system comprises an electric control pump, a fuel gas injection electromagnetic valve, a fuel gas control device and a fuel oil control device, the fuel gas control device and the fuel oil control device are fixed to an engine, and the fuel gas control device and the fuel oil control device work cooperatively; the fuel gas control device and the fuel oil control device are electrically connected with a control device of the engine; the fuel gas control device is electrically connected with the fuel gas injection electromagnetic valve, the fuel gas control device controls the opening time and the opening duration of the fuel gas injection electromagnetic valve, and the fuel gas injection electromagnetic valve is arranged on a pipeline between a natural gas rail and an engine cylinder cover gas inlet channel; and the fuel control device is electrically connected with the electric control pump, the fuel control device controls the starting time and the starting duration of the electric control pump, and the electric control pump is arranged on a pipeline between an engine fuel rail and a cylinder cover fuel injector. According to the system, accurate control over fuel supply in a fuel oil mode and a fuel gas mode of the engine and uniform combustion of all working condition points of the engine are achieved.

Description

technical field [0001] The invention belongs to the technical field of marine LNG / diesel dual-fuel engines, and in particular relates to a control system for an oil-gas dual-electric control dual-fuel engine. Background technique [0002] With the increasingly stringent emission regulations and the increasing shortage of energy in the world, high efficiency, energy saving, and environmental protection have become the leading direction for the development of internal combustion engine technology. Liquefied natural gas (LNG) has the characteristics of high energy density, low emissions, and easy transportation. It is considered to have the most development prospects engine clean fuel. With the promotion of clean fuels in the country, dual-fuel engines came out at the historic moment. A dual-fuel engine refers to an internal combustion engine that can burn both natural gas and diesel fuel, or both fuel oil and natural gas. [0003] At present, the traditional marine dual-fuel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/00F02D41/24F02D41/40
CPCF02D41/0025F02D41/0027F02D41/2422F02D41/2467F02D41/40F02D2200/0602F02D2200/0606F02D2200/024F02D2200/101Y02T10/30F02D19/0647F02D19/105F02D13/0219F02D19/061F02D19/027F02D2200/0406F02D2200/0414F02D2200/023F02D35/027F02D41/3827F02D41/1454F02D19/0615
Inventor 黄猛辛强之杨尚刚王延瑞贾宝富张洪祥闫丽袁磊张新亮郭晋孙立红王高杰张红霞张英赵辉李娟王喜高
Owner 淄柴机器有限公司
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