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Heavy oil electronic control oil injector for low-speed diesel engine

An electronically controlled fuel injection and fuel injector technology, which is applied to machines/engines, mechanical equipment, engine components, etc., can solve problems such as device corrosion, and achieve the effect of improving cleanliness and preventing mutual pollution.

Pending Publication Date: 2019-03-01
CHONGQING HONGJIANG MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a heavy oil electronically controlled fuel injector for low-speed diesel engines to solve the problem of device corrosion caused by heavy oil solidification in the electronically controlled fuel injector

Method used

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  • Heavy oil electronic control oil injector for low-speed diesel engine
  • Heavy oil electronic control oil injector for low-speed diesel engine
  • Heavy oil electronic control oil injector for low-speed diesel engine

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Embodiment Construction

[0059] refer to Figure 1 to Figure 11 , the present invention provides a heavy oil electronically controlled injector for low-speed diesel engines, comprising: an injector upper body 11, an injector body 22, an oil inlet orifice plate 4, and a needle valve body arranged sequentially from top to bottom 61 and nozzle 67; the end face of the needle valve body 61 facing the oil inlet orifice 4 is respectively formed with a control volume cavity 602 and a high-pressure fuel cavity 603; the upper body 11 of the injector, the injector body 22 and the oil inlet orifice 4 are sequentially arranged to form an oil inlet passage, an oil return passage 207 and a circulating oil passage, and the outlet of the oil inlet passage is respectively connected to the control volume chamber 602 and the high-pressure fuel chamber 603, the circulating oil passage communicates with the high-pressure fuel chamber 603; the circulating oil passage is provided with a circulation valve that blocks or condu...

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Abstract

The invention relates to a heavy oil electronic control oil injector for a low-speed diesel engine so as to achieve the effects of preventing the interior of the heavy oil electronic control oil injector from solidifying and preventing devices in the oil injector from being corroded. The electronic control oil injector comprises an oil injector upper body, an oil injector body, an oil input hole plate, a needle valve body and a spraying nozzle which are sequentially arranged from top to bottom. A control volume cavity and a high-pressure fuel oil cavity are formed in the end faces, facing theoil input hole plate, of the needle valve body correspondingly. The oil injector upper body, the oil injector body and the oil input hole plate are sequentially arranged to form an oil input channel,an oil return channel and a circulating oil channel. An outlet of the oil input channel communicates with the control volume cavity and the high-pressure fuel oil cavity through oil ways. The circulating oil channel communicates with the high-pressure fuel oil cavity. A circulating valve for obstructing or breaking over fuel oil in the high-pressure fuel oil cavity to be leaked outside is arrangedin the circulating oil channel. An electromagnetic valve assembly and an oil output control valve assembly are installed in the oil injector body. An oil injector lower body assembly is arranged in the high-pressure fuel oil cavity of the needle valve body.

Description

technical field [0001] The invention relates to the field of low-speed diesel engines, in particular to a heavy oil electronically controlled fuel injector for low-speed diesel engines. Background technique [0002] In recent years, oil resources have become increasingly scarce, environmental pollution has become more serious, and the prices of light diesel oil and gasoline, which use oil as raw materials, have continued to rise, which has severely restricted the stock and further development of low-speed diesel engines. Heavy oil belongs to low-quality fuel oil and does not need further refining. The cost of fuel oil is low, which can significantly reduce the cost of marine low-speed diesel engines. At the same time, the requirements of emission regulations for marine diesel engines have been continuously improved, which has greatly restricted the use of low-speed diesel engines. In order to meet the requirements of low-speed diesel engines, it is imperative to develop ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M51/06F02M47/02F02M61/10F02M61/16F02M61/20F02M63/00
CPCF02M51/0603F02M51/061F02M61/10F02M61/16F02M61/18F02M63/0017F02M63/0026
Inventor 陈超刘洋扈爽张朝磊惠小亮
Owner CHONGQING HONGJIANG MACHINERY
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