CN100354517C - 液化石油喷射车辆中的燃油泵消音装置 - Google Patents

液化石油喷射车辆中的燃油泵消音装置 Download PDF

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CN100354517C
CN100354517C CNB2004100908484A CN200410090848A CN100354517C CN 100354517 C CN100354517 C CN 100354517C CN B2004100908484 A CNB2004100908484 A CN B2004100908484A CN 200410090848 A CN200410090848 A CN 200410090848A CN 100354517 C CN100354517 C CN 100354517C
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fuel pump
fuel
liquefied petroleum
cut
reduction apparatus
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CN1664348A (zh
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申昌悬
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Hyundai Motor Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/04—Towel racks; Towel rails; Towel rods; Towel rolls, e.g. rotatable
    • A47K10/06—Towel racks; Towel rails; Towel rods; Towel rolls, e.g. rotatable combined with means for drying towels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/025—Failure diagnosis or prevention; Safety measures; Testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

本发明公开一种液化石油喷射(LPI)车辆中的燃油泵消音装置，包括一个液化石油气(LPG)开关。多个切断阀构造来经由LPG开关通过接收电池能量而被激活。在一个燃油箱中的一个燃油泵经由LPG开关通过接收电池能量而被激活。在LPG开关在失效状态时，该切断阀关闭且燃油泵同时停止，由此减少了引擎停止时燃油泵不必要的操作所带来的噪音和引擎输出损耗。

Description

液化石油喷射车辆中的燃油泵消音装置
技术领域
本发明涉及一种液化石油喷射(LPI)车辆中的燃油泵消音装置。具体来说，本发明涉及一种根据液化石油气(LPG)开关的启动来控制燃油切断阀和燃油泵的操作的装置。
背景技术
一般来说，使用LPG作为燃料的车辆被设计为将LPG以气态的形式喷射到引擎中。LPG从燃油箱中提供并通过蒸发器和混合器来转化成为气体。然而，LPG引擎在引擎的输出功能、燃油经济性、车辆以低温启动、废气等等中有一些缺点。因此，目前已经发展并使用LPI引擎车辆。
LPI引擎车辆被构造来使用安装在燃油箱中的燃油泵通过燃油路线将LPG燃油压缩地传输到喷射器。然后，喷射器将燃油以液态喷射到引擎中来提高引擎的输出、燃油的经济性、在低温下车辆的启动功能，并减少了废气。
在LPI引擎车辆中，一个切断阀分别安装在燃油箱和调节器中。如果LPG开关在引擎运行时被切断，该接口箱(IFB)关闭切断阀并停止燃油流过喷射器。
这样，在传统LPI引擎车辆中，当LPG开关关闭时，燃油箱中的切断阀和调节器被关闭来停止燃油供给。然而，有一个缺点在于当引擎停止时，燃油泵通过使用另一个能源来继续运行指定的一段时间，由此引起了由于燃油泵的不必要运行所带来的噪音增加和输出消耗。
发明内容
本发明的一个实施例提供了一种在LPI车辆中的燃油泵消音装置，该装置适合在LPI开关关闭时，来关闭调节器和燃油箱的切断阀并停止燃油泵，由此减小了燃油泵的不必要操作所引起的噪声和输出消耗。
液化石油喷射(LPI)车辆中的燃油泵消音装置包括了一个液化石油器(LPG)开关。构造多个切断阀来经由LPG开关通过接收电池能量而激活。燃油箱中的燃油泵经由LPG开关通过接收电池能量来激活。
燃油泵和切断阀被分别并联到防止电压冲击的二极管上。
切断阀安装到调节器和燃油箱中。
附图说明
为了更好的理解本发明的性质和目的，应该结合附图参考下面的详细说明，其中：
图1为根据本发明的实施例的LPI车辆中的燃油泵消音装置的电路框图。
具体实施方式
参考图1，根据本发明的实施例的一个燃油泵消音装置包括LPG开关10、调节器20中的切断阀21、燃油箱30中的切断阀31、燃油箱30中的燃油泵32，和用来控制燃油的接口箱(IFB)电子控制单元(ECU)40。
LPI引擎具有引擎管理系统(EMS)ECU和IFB的ECU，用于控制引擎和燃油来激活车辆。
该LPG开关10根据驾驶员的操作来打开或关闭。在紧急情况或可能燃油泄漏的情况下，驾驶员关闭LPG开关10来停止燃油供应以避免燃油泄漏或类似的任何危险。
当通过LPG开关10提供的电池能量(B+，12V的电源来自主继电器的后侧)通过关闭LPG开关10被停止时，调节器20的切断阀21和燃油箱30的切断阀31关闭来停止燃油供应。
而且，当LPG开关10被关闭且通过LPG开关10供应的电池能量(B+)停止时，燃油箱30的燃油泵32也停止运行。
调节器20的切断阀21、燃油箱30的切断阀31，和燃油泵32被优选地分别并联连接到防止电压冲击的二极管(D1、D2，和D3)。因此，防止了切断阀21和31和燃油泵32由于LPG开关10的开启或关闭时所产生的电压的冲击而损坏或不良地运行。
下面将对根据本发明实施例中的LPI车辆中的燃油泵消音装置的操作和效果进行详细描述。
如果驾驶员在引擎运行时关闭LPG开关10，提供给调节器20的切断阀21、燃油箱30的切断阀31和燃油泵32的电池能量被隔离且阀21和31被关闭。因此，通过喷射器的燃油供应停止，且燃油泵32停止运行。
也就是说，如果LPG开关10在引擎运行时被关闭，调节器21的切断阀21和燃油箱30的切断阀31被关闭且燃油泵32停止运行。
而且，在LPG开关打开或关闭时，电压冲击的出现被防止电压冲击的二级管(D1、D2和D3)消除，这样，防止了由于电压冲击对切断阀21和31和燃油泵32造成的损坏或故障。
如前所述，本发明有一个优点，即，当引擎停止和LPG开关关闭时，燃油箱和调节器的切断阀关闭且燃油泵停止，由此有效地减少了由燃油泵的不必要操作所引起的噪声和引擎输出消耗。

Claims (4)

1.一种液化石油喷射引擎车辆中的燃油泵消音装置，包括：
一个液化石油气开关；
构造多个经由所述液化石油气开关通过接收电池能量而激活的切断阀；和
一个经由所述液化石油气开关通过接收电池能量而被激活的燃油箱中的燃油泵。
2.如权利要求1所述的燃油泵消音装置，其中所述燃油泵并联连接一个防止电压冲击的二极管。
3.如权利要求1所述的燃油泵消音装置，其中每个所述切断阀分别并联连接防击电压冲击的二极管。
4.如权利要求1所述的燃油泵消音装置，其中所述切断阀安装在调节器和所述燃油箱中。
CNB2004100908484A 2004-03-04 2004-11-12 液化石油喷射车辆中的燃油泵消音装置 Expired - Fee Related CN100354517C (zh)

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KR1020040014616A KR100619704B1 (ko) 2004-03-04 2004-03-04 엘피아이 차량의 연료펌프 노이즈 저감장치

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CN1243914A (zh) * 1998-07-31 2000-02-09 奥菲辛洛瓦托有限公司 内燃机中喷射用气体燃料供给的调节系统
CN2457352Y (zh) * 2001-01-05 2001-10-31 平湖市晨人燃气设备有限公司 液化石油气助动车动力供给装置
JP2003214597A (ja) * 2002-01-18 2003-07-30 Tokyo Gas Co Ltd Ｌｎｇを用いた水素供給装置
JP2003239808A (ja) * 2002-02-19 2003-08-27 Chuo Motor Wheel Co Ltd 自動車用液化ガス供給装置

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US20050193991A1 (en) 2005-09-08
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DE102004054369A1 (de) 2006-10-19
CN1664348A (zh) 2005-09-07
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US7389761B2 (en) 2008-06-24
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