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Vehicle system and method for injecting aqueous solution in the combustion chamber of the internal combustion engine

A vehicle system and aqueous solution technology, applied in the field of vehicle systems, can solve the problems of impractical use of UV radiators, high cost, and difficult replacement operations

Pending Publication Date: 2020-02-04
PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Their location in the water storage tank makes replacement difficult and costly
These factors make the use of UV radiators impractical

Method used

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  • Vehicle system and method for injecting aqueous solution in the combustion chamber of the internal combustion engine
  • Vehicle system and method for injecting aqueous solution in the combustion chamber of the internal combustion engine
  • Vehicle system and method for injecting aqueous solution in the combustion chamber of the internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0068] In order to reproduce the effect of bacterial contamination in the tank and to investigate the antibacterial effect of adding an antimicrobial metal compound to the wall of the tank, the following experiments were performed.

[0069] 4 water storage tanks were tested:

[0070] Reference tank a (control) made of high-density polyethylene (HDPE) without antimicrobial metal compounds;

[0071] tank b made of HDPE containing 0.2% by weight of an antimicrobial metal compound of zinc which is zinc pyrithione;

[0072] Tank c made of HDPE containing 0.034 wt% of an antimicrobial metal compound of silver that is silver metal nanoparticles;

[0073] Tank d made of HDPE containing 0.1% by weight of an antimicrobial metal compound of zinc, zinc pyrithione, and 0.017% by weight of an antimicrobial metal compound of silver are silver metal nanoparticles.

[0074] All tanks tested were made by injection moulding, and formed from 2 half-shells welded together by hot plate. It has ...

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Abstract

The present invention relates to a vehicle system (80) configured for injecting an aqueous solution in an air intake line (12) upstream of a combustion chamber (14) of an internal combustion engine, or in the combustion chamber (14) of the internal combustion engine, said vehicle system (80) comprising the following constituents: a tank (16) to store an aqueous solution; a pump (18); an air intakeline (12) upstream of a combustion chamber (14) of an internal combustion engine; one or more injectors (20) configured for injecting aqueous solution in the air intake line (12), in the combustion chamber (14) or both; a feed line (22) configured for feeding said injector (20) with aqueous solution pumped by the pump (18). In the vehicle system, at least a portion of at least one of the vehiclesystem constituents (16, 18, 12, 20, 22) or of a tank (16) component (24) is made of a polymer material. The polymer material comprises an effective amount of at least one antimicrobial agent, or hason its surface a surface coating containing at least one antimicrobial agent, the surface coating comprising between 0.001 % by weight and 0.25 % by weight of the at least one antimicrobial agent.

Description

technical field [0001] The invention relates to a vehicle system for injecting an aqueous solution into a combustion chamber of an internal combustion engine. Another aspect of the invention relates to a method of injecting an aqueous solution by means of the system according to the invention. Background technique [0002] The optimization of the fuel consumption of internal combustion engines has received considerable attention due to the increasing demands on reducing carbon dioxide emissions. However, this optimization is limited by premature ignition of the fuel and high temperature of the exhaust gases. One possible measure to lower the exhaust gas temperature and reduce premature ignition is to inject water into the combustion chamber. In internal combustion engines, water injection systems inject water into the incoming air or fuel-air mixture, or directly into the combustion chamber, to cool certain parts of the engine that can cause "hot spots" that cause prematur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/022C02F1/28F02M25/028B60K15/03A61L2/10A61L2/238C02F1/32C02F1/50
CPCF02M25/025F02M25/0224B60K2015/03309F02M25/028F02M25/0222C02F1/50C02F2303/04
Inventor 皮埃尔·德凯泽洛朗·迪埃斯蒂芬·伦纳德阿尔蒂尔·赫莱维-诺瓦雷比瑞兹·曼戈-波尼尼
Owner PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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