CN1534184A - 燃油管路中的燃油排放机构 - Google Patents
燃油管路中的燃油排放机构 Download PDFInfo
- Publication number
- CN1534184A CN1534184A CNA2003101234323A CN200310123432A CN1534184A CN 1534184 A CN1534184 A CN 1534184A CN A2003101234323 A CNA2003101234323 A CN A2003101234323A CN 200310123432 A CN200310123432 A CN 200310123432A CN 1534184 A CN1534184 A CN 1534184A
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- CN
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- Prior art keywords
- fuel
- bypass channel
- fuel oil
- regulator
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000295 fuel oil Substances 0.000 title claims description 27
- 230000007246 mechanism Effects 0.000 title claims description 8
- 239000000446 fuel Substances 0.000 claims abstract description 54
- 239000002828 fuel tank Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010977 unit operation Methods 0.000 claims 1
- 230000004941 influx Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/28—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for cutting-out the fuel supply to the engine or to main injectors during certain operating periods, e.g. deceleration
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/54—Arrangement of fuel pressure regulators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
一种燃油管路中的燃油排放机构,包括:一个旁路通道,用于连接调节器的燃油流入侧和燃油流出侧;和一个回转阀,用于打开和关闭旁路通道,从而防止在发动机停止运转时燃油管路中剩余的燃油进入发动机,并且将发动机重新起动时产生的污染减至最小。
Description
相关申请
本申请要求的优先权是2003年3月28日申请的韩国专利申请第10-2003-0019344号,其公开的内容全部在此作为参考。
技术领域
本发明涉及一种发动机停止运转时燃油管路中的燃油排放机构。
背景技术
通常,当发动机停止运转及从燃油泵提供的燃油剩余在燃油管路中时,燃油因由发动机周围的高温增加的压力而倾向于经喷油嘴流进发动机,致使在发动机重新起动时过度的不完全燃烧导致了空气污染。
发明内容
本发明的实施例提供了一种燃油管路中的燃油排放机构,用于在发动机停止运转时有效地排放燃油管路中的剩余燃油,由此防止燃油经喷油嘴漏进燃烧室,并且因此在发动机重新起动时减少不完全的燃烧。
在本发明的一个实施例,燃油管路中的燃油排放机构包括:一个调节器,调节从燃油泵抽到燃油管路的燃油的压力,其中调节器包括壳体,通过与阀座连接形成一个腔室。一个燃油进口在腔室的一侧,一个燃油出口形成在阀座。一个阀由弹簧弹性支撑在阀座上侧。一个旁路通道连接调节器的燃油流入通道和燃油流出通道,以便在发动机停止运转时使燃油管路内的剩余燃油不得不通过旁路通道流进油箱。
附图说明
为了更好地理解本发明的性质及目的,以下结合附图进行详细说明,其中:
图1是包括本发明调节器的燃油供给系统的框图;
图2是本发明调节器的示意图;
图3和图4示出本发明调节器的运行状态,其中图3示出发动机运转时的状态,和图4示出发动机停止运转时的状态。
具体实施方式
以下结合附图详细描述本发明的优选实施例。
如图1所示,由燃油泵12从油箱11抽出的燃油在燃油滤清器被过滤,并且通过喷油嘴16注入发动机10的进油岐管(intake manifold)。压力传感器17和调节器30装在回流管路22,来调节从燃油泵12抽出的燃油通过喷油嘴16以恒定的压力注入发动机。燃油停止(fuel-stopping)电磁阀14按照点火开关的开/关状态来限制燃油供给到喷油嘴16,和温度传感器15测量燃油的温度。燃油停止电磁阀14和温度传感器15都装在供油管路21。
现参照图2,调节器30包括壳体31,通过与阀座33连接形成一个腔室32。燃油进口34在腔室32的一侧,使燃油能够从回流管路22流进其中。燃油出口35形成在阀座33,用以引导通过阀36的燃油流回到回流管路22。
由弹簧37弹性支撑的阀36固定在阀座33的上侧。当施加于燃油进口34的燃油压力大于弹簧37的弹力时,阀36上升,并且燃油开始通过燃油出口35。
旁路通道40横跨调节器30的流入通道和流出通道。旁路通道40可以是一个独立的管道或者是与壳体31整体形成。作为参考,旁路通道优选直径为0.3mm。
旁路通道40进口侧的剖面图是漏斗形的,并且旁路通道40的进口有大于出口的直径。一个回转阀50,在其剖面图有扇形短管(sectoral-spool)形状,装在旁路通道40的进口侧。回转阀50响应由电子控制单元(ECU)60驱动的致动器62来运行。
在本发明实施例中,回转阀50由致动器62驱动,但是,运行方式(operational means)可以是一个致动器,一个电机旋转力,或诸如此类的。
ECU 60使回转阀50在发动机起动时被关闭,并且在发动机运转停止时被打开。
现在说明本发明的运行。
一旦发动机开始运转,从燃油泵抽出的燃油通过打开的燃油停止电磁阀14送给供油管路21,并且通过喷油嘴16以预定压力注入发动机。没有通过喷油嘴被注入的燃油返回到油箱11。
当发动机停止其运转时,仍有一些燃油剩余在燃油管路中而没有通过喷嘴16被注入。
因此,电子控制单元ECU 60检测发动机是否停止运转,如果是如此,停止燃油泵12的活动,并且关闭燃油停止电磁阀14。电子控制单元ECU 60还转动回转阀50到一打开侧(open side),来引导停留在燃油管路的燃油停止电磁阀14和调节器30之间的燃油通过旁路通道40排出。
在燃油管路中剩余的燃油通过旁路通道40返回到油箱11,从而避免了燃油随着由发动机周围的热量增加的温度和压力通过喷油嘴16进入发动机10。
如从前述所显而易见的是,燃油管路中的燃油排放机构的优点在于调节器的燃油进口侧和燃油出口侧通过由回转阀打开和关闭的旁路通道连接,结果防止了在燃油管路中剩余的燃油在发动机停止运转时通过喷油嘴进入发动机,因此减少了发动机重新起过程中的污染。
Claims (3)
1.一种燃油管路中的燃油排放机构,包括:
一个调节器,调节从燃油泵抽到燃油管路中的燃油的压力,所述调节器包括:壳体,其通过与阀座连接形成一个腔室;一个形成在所述腔室一侧的燃油进口,一个形成在所述阀座的燃油出口,一个由弹簧弹性支撑在所述阀座上侧的阀;和
一个旁路通道,直接连接所述调节器的所述燃油进口和所述燃油出口,以便在发动机停止运转时,使所述燃油管路内的剩余燃油不得不通过所述旁路通道流进油箱。
2.如权利要求1所述的机构,其特征在于,所述的旁路通道是漏斗形;和进一步地,一个回转阀,有扇形短管形状,设置在所说旁路通道的进口侧。
3.如权利要求2所述的结构,其特征在于,所述回转阀由响应电子控制单元运行的致动器来驱动。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0019344A KR100535500B1 (ko) | 2003-03-28 | 2003-03-28 | 엔진 시동 정지시 연료 라인의 연료 배출 구조 |
KR10-2003-0019344 | 2003-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1534184A true CN1534184A (zh) | 2004-10-06 |
Family
ID=32985886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2003101234323A Pending CN1534184A (zh) | 2003-03-28 | 2003-12-26 | 燃油管路中的燃油排放机构 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6966307B2 (zh) |
JP (1) | JP2004301117A (zh) |
KR (1) | KR100535500B1 (zh) |
CN (1) | CN1534184A (zh) |
DE (1) | DE10359263A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102678417A (zh) * | 2012-05-23 | 2012-09-19 | 淮阴工学院 | 一种燃油压力调节器 |
CN103442920A (zh) * | 2011-03-16 | 2013-12-11 | 百乐仕株式会社 | 过供油防止阀 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7066152B2 (en) * | 2004-09-03 | 2006-06-27 | Ford Motor Company | Low evaporative emission fuel system depressurization via solenoid valve |
US7278401B1 (en) * | 2004-10-29 | 2007-10-09 | Walbro Engine Management, L.L.C. | Fuel pressure regulator housing |
JP4602233B2 (ja) * | 2005-11-18 | 2010-12-22 | 株式会社ケーヒン | プレッシャーレギュレター装置 |
EP1803917B1 (en) * | 2005-12-28 | 2008-07-30 | MAGNETI MARELLI POWERTRAIN S.p.A. | Control method of a common-rail type system for direct fuel injection into an internal combustion engine |
US8196567B2 (en) * | 2010-05-28 | 2012-06-12 | Ford Global Technologies, Llc | Approach for controlling fuel flow with alternative fuels |
JP2016017403A (ja) * | 2014-07-04 | 2016-02-01 | 株式会社デンソー | 燃料供給装置 |
Family Cites Families (10)
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JPS60222550A (ja) | 1984-04-20 | 1985-11-07 | Automob Antipollut & Saf Res Center | 液化石油ガス内燃機関の燃料供給装置 |
US5074272A (en) * | 1986-08-13 | 1991-12-24 | Ashland Oil, Inc. | Process and apparatus for reducing port fuel injector deposits |
FR2673246B1 (fr) * | 1991-02-25 | 1994-01-28 | Melchior Jean | Dispositif d'injection de liquide, notamment de combustible, dans au moins une chambre pressurisee d'une machine a fonctionnement periodique tel que moteur a combustion interne et moteur de ce type equipe de ce dispositif. |
JPH06129322A (ja) * | 1992-10-15 | 1994-05-10 | Fuji Heavy Ind Ltd | 高圧噴射式エンジンの燃料圧力制御方法 |
JP2689226B2 (ja) * | 1994-12-02 | 1997-12-10 | 株式会社ゼクセル | 高圧燃料噴射装置用燃料ポンプ |
US5918578A (en) * | 1996-02-29 | 1999-07-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Fuel feeding system for internal combustion engine |
US6024064A (en) * | 1996-08-09 | 2000-02-15 | Denso Corporation | High pressure fuel injection system for internal combustion engine |
KR100311536B1 (ko) * | 1999-06-23 | 2001-10-17 | 오세전, 차용원 | 자동차의 급발진 방지용 연료 제어밸브 |
US6446612B1 (en) * | 2000-10-25 | 2002-09-10 | James Dwayne Hankins | Fuel injection system, components therefor and methods of making the same |
US6691683B2 (en) * | 2001-03-28 | 2004-02-17 | Briggs & Stratton Corporation | Automatic fuel vent closure and fuel shutoff apparatus having electrical actuation |
-
2003
- 2003-03-28 KR KR10-2003-0019344A patent/KR100535500B1/ko not_active IP Right Cessation
- 2003-12-02 JP JP2003403776A patent/JP2004301117A/ja active Pending
- 2003-12-17 DE DE10359263A patent/DE10359263A1/de not_active Withdrawn
- 2003-12-26 CN CNA2003101234323A patent/CN1534184A/zh active Pending
- 2003-12-30 US US10/749,244 patent/US6966307B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103442920A (zh) * | 2011-03-16 | 2013-12-11 | 百乐仕株式会社 | 过供油防止阀 |
US9151256B2 (en) | 2011-03-16 | 2015-10-06 | Piolax, Inc. | Overfill prevention valve |
CN103442920B (zh) * | 2011-03-16 | 2016-03-30 | 百乐仕株式会社 | 过供油防止阀 |
CN102678417A (zh) * | 2012-05-23 | 2012-09-19 | 淮阴工学院 | 一种燃油压力调节器 |
Also Published As
Publication number | Publication date |
---|---|
US6966307B2 (en) | 2005-11-22 |
US20040187849A1 (en) | 2004-09-30 |
JP2004301117A (ja) | 2004-10-28 |
KR100535500B1 (ko) | 2005-12-08 |
KR20040084347A (ko) | 2004-10-06 |
DE10359263A1 (de) | 2004-10-21 |
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