Diesel injector of integrated corona igniting device

A technology of diesel fuel injector and ignition device, which is applied in the direction of electric spark ignition controller, engine ignition, spark plug, etc., can solve the problems of high maintenance cost, low ignition efficiency, low in-cylinder compression, etc., and achieve low-emission fuel economy. , high fuel economy, high ignition efficiency

Active Publication Date: 2014-06-11
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of combustion method combines the dual characteristics of good emission of gasoline engine and low fuel consumption of diesel engine, but its operation method will cause the problem of low compression ratio in the cylinder. Start the engine in the mode of igniting the gasoline mixture, and adopt the way of diesel compression ignition gasoline premixing after the temperature rises
However, in the current engine structure, a separate arrangement of diesel fuel injectors and independent spark plugs is still us

Method used

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  • Diesel injector of integrated corona igniting device
  • Diesel injector of integrated corona igniting device
  • Diesel injector of integrated corona igniting device

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Embodiment 1

[0026] This embodiment relates to a diesel fuel injector with an integrated corona ignition device, which is applied to a dual-fuel engine with gasoline premix and diesel compression ignition. Figure 1 to Figure 4 As shown, it includes a diesel injector body 1 connected to a high-pressure fuel rail 17 not shown in the figure through a fuel inlet 2, and an injector is provided in the diesel injector body 1 below the fuel inlet 2 The solenoid valve 10, below the injector solenoid valve 10, is the plunger cavity 5 provided in the diesel injector body 1. The control line of the injector solenoid valve 10 is connected to the upper part of the diesel injector body 1. The injector solenoid valve plug-in harness 3 on the outer peripheral surface is connected with an external control unit to control the on-off between the plunger 51 and the needle valve 71. In this embodiment, for the convenience of subsequent use and maintenance of the fuel injector, the bottom of the diesel fuel inje...

Embodiment 2

[0031] This embodiment relates to a diesel fuel injector system with an integrated corona ignition device, which is applied to a dual-fuel engine with gasoline premixing and diesel compression ignition. The integrated corona in the diesel fuel injector system with the integrated corona ignition device The diesel fuel injector of the ignition device has the structure of the diesel fuel injector with integrated corona ignition device as described in the first embodiment, such as Image 6 As shown, the fuel inlet 2 of the diesel fuel injector body 1 is connected to the high-pressure fuel rail 17, the solenoid valve plug-in harness 3 of the injector is electrically connected to the ECU control unit 18, and the spark plug plug-in harness 4 is electrically connected to the control circuit 21. The control circuit 21. The energy supply mechanism 20 provides electric energy. The energy supply mechanism 20 can be an electric energy storage and conversion device, which can store electric en...

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Abstract

The invention relates to a diesel injector of an integrated corona igniting device. The diesel injector is applicable to a gasoline premixing and diesel compression ignition double-fuel engine. The diesel injector comprises a diesel injector body which is provided with an oil inlet connected with a high pressure oil rail; a central electrode is arranged on the peripheral surface of the bottom of the diesel injector main body in an insulating manner; at least one igniting top end is arranged at one end, locating in an injecting hole of the diesel injector body, of the central electrode; a coil electrically connected with the central electrode is coiled on the peripheral surface, above the central electrode, of the diesel injector body in the insulating manner; the coil is electrically connected and output through a spark plug plug-in wiring harness above the diesel injector body. The diesel has the advantages that the inner space of a combustion chamber of a cylinder cover can be reasonably utilized without influencing the arrangement of an air valve of an engine and an air inlet/outlet channel; the ignition is easy, and the ignition efficiency is high; the diesel injector is applicable to the operation mode of the gasoline premixing and diesel compression ignition double-fuel engine.

Description

Technical field [0001] The invention relates to a fuel injector for an engine system, in particular to a diesel fuel injector with an integrated corona ignition device, which is applied to a dual-fuel engine with gasoline premix and diesel compression ignition. The invention also relates to an integrated corona Diesel fuel injector system of ignition device, and control method of diesel fuel injector system of integrated corona ignition device of dual-fuel engine with gasoline premix and diesel compression ignition. Background technique [0002] In order to adapt to the continuous improvement of automobile fuel consumption and emission requirements in the domestic and foreign automobile markets, various automobile manufacturers have begun research and development in the field of dual-fuel engine technology, in order to combine the advantages of low gasoline emissions and high fuel economy of diesel to design an efficient Low-emission engines to meet all needs. For example, the a...

Claims

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Application Information

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IPC IPC(8): F02M57/06F02D43/00
Inventor 常进才张卫国张宝东鲁志远豆刚
Owner GREAT WALL MOTOR CO LTD
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