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Engine water spraying system

A water spray system and engine technology, applied in engine components, engine control, machines/engines, etc., can solve problems such as easy formation of water droplets, failure to effectively suppress engine knocking, etc., and achieve good atomization effect and flexible injection time. The effect of controlling and reducing NOx emissions

Inactive Publication Date: 2018-11-23
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the intake pipe of the engine intake pipe water injection system is far away from the combustion chamber, water droplets are easily formed and the knocking of the engine cannot be effectively suppressed.

Method used

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Embodiment Construction

[0043] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the engine water spray system proposed according to the present invention are as follows: Details are as follows.

[0044] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of the specific implementation, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the accompanying drawings are only for reference and description, and are not used to limit the present invention .

[0045] In addition to the problems existing in the prio...

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Abstract

The invention relates to the technical field of automobile manufacturing, in particular to an engine water spraying system. The engine water spraying system comprises an engine, a water spraying unit,a collecting unit and a control unit. The engine comprises a combustion chamber. The water spraying unit comprises a water spraying outlet, and the water spraying outlet of the water spraying unit isformed in the combustion chamber. The collecting unit is used for collecting the work load or the exhaust temperature of the engine. The control unit is connected with the water spraying unit and thecollecting unit and used for controlling water spraying of the water spraying unit according to the work load or the exhaust temperature of the engine. Thus, since the water spraying outlet is located in the combustion chamber, the water spraying atomization effect is good, water spraying time control is flexible, and limitation from valve opening and closing is avoided; meanwhile, the compression final temperature can be effectively reduced through the cylinder interior water spraying technology, on one hand, denotation limitation can be broken, the compression ratio is increased, and the heat efficiency is improved; and on the other hand, the cylinder interior temperature is reduced, and NOx emission can be reduced.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to an engine water spray system. Background technique [0002] Future gasoline engines need to provide users with high torque, high power and low cost products while meeting increasingly stringent fuel consumption and emission regulations. Although high compression ratio and small supercharging technology can maximize the thermal efficiency of the engine, the efficiency and performance of the engine are limited by knocking. Usually, knocking can be suppressed by using cooling EGR technology, variable compression ratio, miller cycle and water injection. technology. [0003] In order to suppress the knock caused by high compression ratio, small supercharging and direct injection in cylinder, EGR technology, variable compression ratio technology, Miller cycle technology and water injection technology can be adopted. However, with the EGR technology, the engine compon...

Claims

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Application Information

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IPC IPC(8): F02M25/03F02M25/022F02D41/00
CPCF02D41/0025F02D2200/02F02M25/0221F02M25/0227F02M25/03
Inventor 马瑞博张华李连豹韦虹李双清王瑞平
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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