CN202140201U - Low-emission diesel engine system - Google Patents

Low-emission diesel engine system Download PDF

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Publication number
CN202140201U
CN202140201U CN 201120211251 CN201120211251U CN202140201U CN 202140201 U CN202140201 U CN 202140201U CN 201120211251 CN201120211251 CN 201120211251 CN 201120211251 U CN201120211251 U CN 201120211251U CN 202140201 U CN202140201 U CN 202140201U
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China
Prior art keywords
diesel engine
engine system
pipe
exhaust
pump
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CN 201120211251
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Chinese (zh)
Inventor
吴成明
方晗
李汉
赵福全
陈萍
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浙江吉利控股集团有限公司
浙江吉利汽车研究院有限公司
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Priority to CN 201120211251 priority Critical patent/CN202140201U/en
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Publication of CN202140201U publication Critical patent/CN202140201U/en

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Abstract

The utility model discloses a low-emission diesel engine system comprising a diesel engine, a gas inlet pipe and an exhaust pipe, wherein a supercharger driven by exhaust gas in the exhaust pipe is arranged on the gas inlet pipe; an intercooler is arranged on the gas inlet pipe; the gas inlet pipe and the exhaust pipe are mutually connected by an EGR (exhaust gas recirculation) valve; a water tank is arranged on the diesel engine and is connected with a water pump by a pipeline; a nozzle is arranged on a pipeline connected at the exterior of the water pump; and an opening of the nozzle is inserted in the gas inlet pipe. The low-emission diesel engine system can lower the requirements on supercharging intercooling, EGR intercooling of the diesel engine, can reduce the oil consumption of the engine, can reduce the emission, and solves the problems that the existing system for reducing the emission of the diesel engine has high requirements on the supercharger intercooling and the EGR intercooling, and the preparation is difficult.

Description

一种低排放柴油机系统 A low-emissions diesel engine system

技术领域 FIELD

[0001] 本实用新型涉及一种低排放的柴油机系统。 [0001] The present invention relates to a low-emissions diesel engine system. 背景技术 Background technique

[0002] 现有技术中,柴油机往往不能很好的兼顾降油耗与降排放。 [0002] prior art, diesel engines are often not a good balance between reducing fuel consumption and lowering emissions. 柴油机排放控制的重点和难点是协调废气中的NOx与颗粒物浓度。 Key and difficult NOx diesel emissions control is coordinated with the concentration of particulate matter in the exhaust gas. 现有的方法如通过匹配增压器改善燃烧降低颗粒生成,通过废气再循环(EGR)技术降低NOx的产生等。 The conventional method of improving combustion by matching the turbocharger to reduce particle generation, and other techniques to reduce NOx produced by the exhaust gas recirculation (EGR). 但是现有降低柴油机排放的系统对增压器中冷和EGR中冷的要求高,制备难度大,如果降低增压器中冷和EGR中冷的要求, 降低NOx与颗粒物浓度的排放效果差。 However, the conventional diesel engine exhaust system to reduce the high requirement for cold supercharger intercooler and the EGR is large prepared difficult, if reduced turbocharger intercooler and the EGR cooling requirements, the effect of reducing NOx emissions and particulate matter concentration difference.

[0003] 中国专利公告号CN101509440A,公告日2009年8月19日,公开了一种非道路用柴油机低排放系统,包括安装有直列泵的柴油机主机,所述柴油机主机上设有用于将燃烧室内的废气排出的排气通路;还包括废气再循环系统,用于向燃烧室输送废气,更适合非道路用柴油机的使用工况。 [0003] Chinese Patent Publication No. CN101509440A, announcement date August 19, 2009, discloses a non-road diesel engines with low emission system, including diesel engines equipped with a host of in-line pump, the main diesel engine combustion chamber is provided for an exhaust passage of the exhaust gas discharged; further comprising an exhaust gas recirculation system for delivering exhaust gas to the combustion chamber, is more suitable for non-road diesel engine use conditions. 但该非道路用柴油机低排放系统对增压器中冷和EGR中冷的要求高,制备难度大,如果降低增压器中冷和EGR中冷的要求,降低NOx与颗粒物浓度的排放效 However, the low-road diesel engine exhaust system high demands on the supercharger intercooler and the EGR cooler, large prepared difficult, if reduced turbocharger intercooler and the EGR cooling requirements, reduce NOx emissions and particulate matter concentration effect

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实用新型内容 SUMMARY

[0004] 本实用新型的目的在于提供一种低排放的柴油机系统,解决了现有降低柴油机排放的系统对增压器中冷和EGR中冷的要求高,制备难度大的问题。 [0004] The object of the present invention is to provide a low-emissions diesel engine system, solves the problem of reducing diesel emissions requirements for high system supercharger intercooler and the EGR cooler, the difficulty of preparing a large problem.

[0005] 为解决上述技术问题,本实用新型采用如下技术方案: [0005] In order to solve the above problems, the present invention adopts the following technical solution:

[0006] 一种低排放柴油机系统,包括柴油机,进气管和排气管,进气管上设有由排气管中废气驱动的增压器,进气管上还设有中冷器,进气管和排气管间通过EGR阀相互连接,所述柴油机上设置有水箱,水箱通过管道连接水泵,水泵外接管道上设有喷嘴,喷嘴口插入进气管。 [0006] A low emission diesel engine system comprising a diesel engine, an intake pipe and an exhaust pipe, intake pipe is provided with an exhaust pipe from the exhaust gas driven turbocharger, the intake pipe is also provided with an intercooler, intake pipe, and an exhaust pipe connected between each other through the EGR valve, the diesel engine is provided with a water tank, the water tank through a conduit connected to the pump, the pump nozzle is provided with an external conduit, the nozzle port into the intake pipe. 水雾喷嘴位于增压器和EGR阀后部的进气管内,水箱里的水经水泵加压后喷入进气管, 水雾可有效降低进气温度,增加进气量,提高发动机功率,水雾在进气管内的蒸发,可以减少进气系统对中冷器的要求;水雾在燃烧室内蒸发,增大了气体总热容量,降低燃烧温度, 减少了NOx的产生。 Water spray nozzles located within the intake pipe and a rear booster EGR valve, the water tank after the pump pressure is sprayed into the intake pipe, mist can effectively reduce the intake air temperature, the intake air amount increases, the engine power increase, water evaporated mist in the intake pipe, the intake system can reduce the requirements for the intercooler; evaporated mist in the combustion chamber, increasing the overall heat capacity of the gas, combustion temperature is lowered, reducing the generation of NOx.

[0007] 作为优选,所述柴油机和水泵的润滑油路相互连通。 [0007] Advantageously, the lubricating oil passage and the diesel pump communicate with each other. 通过润滑油路相互连通,可方便给水泵提供用润滑油,无需增加润滑油路管道。 Communicate with each other through the lubricating oil passage, convenient to provide a lubricating oil pump, without increasing the lubricant conduit.

[0008] 作为优选,所述水泵连接控制器。 [0008] Advantageously, the pump connection controller. 喷雾时刻和喷雾量由柴油机工况决定,通过控制器,整个系统智能化控制,无需人工操作。 Spray time and the spray amount determined by the diesel engine operating conditions, by a controller, intelligent control of the entire system, without manual operation.

[0009] 作为优选,所述控制器连接数据总线。 [0009] Advantageously, the controller is connected to a data bus. 控制器所需要的发动机转速、转矩、发动机水温、EGR状态等参数可由整车和发动机的数据总线获取,减少了传感器的使用,降低了系统成本。 The controller required engine speed, torque, engine water temperature, and other parameters may be the state of the EGR engine and vehicle data bus acquisition, reducing the use of sensors, reducing system cost.

[0010] 本实用新型的有益效果是:(1)、水雾喷嘴位于进气道中,喷入的水雾蒸发吸热降低了进气温度。 [0010] Advantageous effects of the present invention is: (1) water spray nozzles located in the intake passage, the mist sprayed into the endothermic heat of vaporization reduces the intake air temperature. 少量未完全蒸发的水雾则可参与燃烧,具有降低油耗和排放的作用。 A small amount of incomplete combustion involved in the evaporation of mist can, with reduced fuel consumption and emissions effect. 有别于燃烧室直接喷水或燃用预先配制好的乳化柴油,进气道喷雾技术既保留了节油、降低排放的优点,同时不会破坏燃烧室润滑,不使用乳化剂,降低了成本;(2)、喷雾时刻和喷雾量由柴油机工况决定,整个系统智能化控制,无需人工操作;(3)、控制器所需的输入由数据总线获取,减少了传感器的使用,降低了系统成本。 Unlike a combustion chamber or burning direct water pre-emulsified diesel formulated, not only retains the inlet fuel spray technique, the advantage of reduced emissions, the combustion chamber while not destroy lubrication, without using an emulsifier, reducing costs ; (2), the amount of spray time and the spray is determined by the diesel engine operating conditions, the entire intelligent control system, without manual operation; (3), required by the data acquisition controller input bus, reducing the use of sensors, reducing system cost.

附图说明 BRIEF DESCRIPTION

[0011] 图1是本实用新型的一种结构示意图; [0011] FIG. 1 is a schematic diagram of a configuration of the present invention;

[0012] 图中:1、柴油机,2、排气管,3、进气管,4、增压器,5、中冷器,6、水箱,7、水泵,8、喷嘴,9、EGR阀,10、控制器,11、数据总线。 [0012] FIG: 1, the diesel engine 2, exhaust pipe 3, the intake pipe, 4, turbocharger 5, an intercooler 6, tank 7, water pump 8, a nozzle, 9, EGR valve, 10, a controller 11, a data bus.

具体实施方式 Detailed ways

[0013] 下面通过具体实施例,并结合附图,对本实用新型的技术方案作进一步的具体描述: [0013] The following specific embodiments, in conjunction with the accompanying drawings, the present invention further aspect of the detailed description:

[0014] 实施例1 :如附图1所示,一种低排放柴油机系统,包括柴油机1,进气管3和排气管2,进气管3上设有由排气管2中废气驱动的增压器4,进气管3上还设有中冷器5,进气管3和排气管2间通过EGR阀9相互连接,所述柴油机1上设置有水箱6,水箱6通过管道连接水泵7,水泵7外接管道上设有喷嘴8,喷嘴口插入进气管3,柴油机1和水泵7的润滑油路相互连通,水泵7连接控制器10,控制器10连接数据总线11。 [0014] Example 1: As shown in the drawings, a low-emission diesel engine system 1 includes a diesel engine 1, an intake pipe 3 and an exhaust pipe 2, driven by the intake pipe is provided in the exhaust gas by the exhaust tube 2 3 4 pressure, the intake pipe 3 is also provided an intercooler 5, an intake pipe 3 and an exhaust pipe 2 connected to each other through the EGR valve 9 is provided with a water tank 1 of the diesel 6, tank 7 through a pipe 6 is connected to the pump, pump 7 is provided with an external nozzle pipe 8, a nozzle opening 3 is inserted into the intake pipe, pump and diesel engine lubricating oil passage 7 communicate with each other, the water pump 7 connected to the controller 10, the controller 10 is connected to a data bus 11.

[0015] 喷嘴口位于增压器和EGR阀后部的进气管3内,水箱6里的水经水泵7加压后喷入进气管3,水雾可有效降低进气温度,增加进气量,提高发动机功率,水雾在进气管内的蒸发,可以减少进气系统对中冷器5的要求;水雾在燃烧室内蒸发,增大了气体总热容量,降低燃烧温度,减少了NOx的产生。 [0015] The nozzle opening is located in the rear of the boost pressure and EGR valve within the intake pipe 3, the water in the tank 6 after the pressurizing pump 7 is sprayed into the intake pipe 3, can effectively reduce the mist intake air temperature, the intake air amount increase requirements, increase engine power, evaporated mist in the intake air can be reduced to the intake system of the intercooler 5; evaporated mist in the combustion chamber, increasing the overall heat capacity of the gas, combustion temperature is lowered, reducing the generation of NOx .

[0016] 以上所述的实施例只是本实用新型的一种较佳的方案,并非对本实用新型作任何形式上的限制,在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。 Example [0016] The above-described novel only one preferred embodiment the present invention, not to limit the present invention in any form, in the claims without departing from the technical solutions described in the Still other variations and body modification.

Claims (4)

1. 一种低排放柴油机系统,包括柴油机,进气管和排气管,进气管上设有由排气管中废气驱动的增压器,进气管上还设有中冷器,进气管和排气管间通过EGR阀相互连接,其特征是,所述柴油机上设置有水箱,水箱通过管道连接水泵,水泵外接管道上设有喷嘴,喷嘴口插入进气管。 A low emission diesel engine system comprising a diesel engine, an intake pipe and an exhaust pipe, the exhaust pipe is provided by the exhaust gas-driven supercharger in the intake manifold, an intercooler is also provided on the intake pipe, the intake pipe and a discharge between each tube is connected through the EGR valve, characterized in that the diesel engine is provided with a water tank, the water tank through a conduit connected to the pump, the pump nozzle is provided with an external conduit, the nozzle port into the intake pipe.
2.根据权利要求1所述的一种低排放柴油机系统,其特征是,所述柴油机和水泵的润滑油路相互连通。 2. A method according to claim 1, said low emission diesel engine system, characterized in that the lubricating oil passage and the diesel pump communicate with each other.
3.根据权利要求1或2所述的一种低排放柴油机系统,其特征是,所述水泵连接控制ο 3. According to one of claim 1 or claim 2 low emission diesel engine system, characterized in that the pump connection control ο
4.根据权利要求3所述的一种低排放柴油机系统,其特征是,所述控制器连接数据总线。 According to claim 3, wherein one of said low emission diesel engine system, wherein the controller is connected to a data bus.
CN 201120211251 2011-06-22 2011-06-22 Low-emission diesel engine system CN202140201U (en)

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CN 201120211251 CN202140201U (en) 2011-06-22 2011-06-22 Low-emission diesel engine system

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758664A (en) * 2014-01-03 2014-04-30 龙口中宇机械有限公司 Front emission reduction system
CN106246336A (en) * 2015-12-14 2016-12-21 上海擎掣汽车电子有限公司 Electromotor and gas handling system thereof
CN107288743A (en) * 2017-08-04 2017-10-24 哈尔滨工业大学 A kind of water jet internal combustion engine exhaust system
CN107905920A (en) * 2017-09-30 2018-04-13 天津大学 A kind of apparatus and method that supercharged diesel engine discharge is reduced based on air inlet Composition Control
CN107989717A (en) * 2017-09-07 2018-05-04 同济大学 A kind of diesel engine sprayed water outside cylinder
CN108049965A (en) * 2018-01-09 2018-05-18 天津大学 A kind of cleaning engine with air intake duct spraying function
CN108087157A (en) * 2018-01-09 2018-05-29 天津大学 A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758664A (en) * 2014-01-03 2014-04-30 龙口中宇机械有限公司 Front emission reduction system
CN103758664B (en) * 2014-01-03 2016-03-09 龙口中宇机械有限公司 A kind of front emission reduction system
CN106246336A (en) * 2015-12-14 2016-12-21 上海擎掣汽车电子有限公司 Electromotor and gas handling system thereof
CN106246336B (en) * 2015-12-14 2019-01-18 上海擎掣汽车电子有限公司 Engine and its gas handling system
CN107288743A (en) * 2017-08-04 2017-10-24 哈尔滨工业大学 A kind of water jet internal combustion engine exhaust system
CN107989717A (en) * 2017-09-07 2018-05-04 同济大学 A kind of diesel engine sprayed water outside cylinder
CN107905920A (en) * 2017-09-30 2018-04-13 天津大学 A kind of apparatus and method that supercharged diesel engine discharge is reduced based on air inlet Composition Control
CN108049965A (en) * 2018-01-09 2018-05-18 天津大学 A kind of cleaning engine with air intake duct spraying function
CN108087157A (en) * 2018-01-09 2018-05-29 天津大学 A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function

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