CN1558987A - 进口空气预热 - Google Patents

进口空气预热 Download PDF

Info

Publication number
CN1558987A
CN1558987A CNA028188705A CN02818870A CN1558987A CN 1558987 A CN1558987 A CN 1558987A CN A028188705 A CNA028188705 A CN A028188705A CN 02818870 A CN02818870 A CN 02818870A CN 1558987 A CN1558987 A CN 1558987A
Authority
CN
China
Prior art keywords
preheating
inlet air
passage
air
crankcase
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.)
Granted
Application number
CNA028188705A
Other languages
English (en)
Other versions
CN1311155C (zh
Inventor
ά
拉尔斯·维西格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Husqvarna AB
Original Assignee
Electrolux AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrolux AB filed Critical Electrolux AB
Publication of CN1558987A publication Critical patent/CN1558987A/zh
Application granted granted Critical
Publication of CN1311155C publication Critical patent/CN1311155C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/1019—Two-stroke engines; Reverse-flow scavenged or cross scavenged 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/14—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating by using heat from working cylinders or cylinder heads
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/14—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating by using heat from working cylinders or cylinder heads
    • F02M31/145—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating by using heat from working cylinders or cylinder heads with particular constructional means
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/1017—Small engines, e.g. for handheld tools, or model engines; Single cylinder 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10268—Heating, cooling or thermal insulating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • 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
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Abstract

本发明涉及一种用来预热到内燃机的进口空气的装置，该内燃机为可携带工具提供动力。当环境温度低时，启动空气的预热；而当不需要进口空气的预热时，停止预热。当启动预热时，通过一条集成在曲轴箱(10)的壁中的第一通道(14)引导空气，从而使空气被加热。当不需要预热时，通过位于曲轴箱(10)外的一条第二通道(16)引导进口空气。

Description

进口空气预热
背景技术
向可携带工具等，例如链锯、清除锯(clearing saws)和修剪机，提供动力的现代内燃机不顾季节和环境温度被全年使用。环境条件的较大变化增加了工具的应力，并且使得设计在所有可能环境气温和湿度下工作都满意的工具变得复杂。
低环境温度意味着，工具的几种功能可能以不利方式受到影响。例如，有像空气进口之类的狭窄通道会被冷冻水堵塞的危险、向工具中不同零件提供足够润滑的问题、以及使发动机内的燃料可靠点燃的困难。
改进当环境温度较低时的工具性能的一种解决方案，是预热进入发动机的进口空气。进口空气的较高温度降低了用于进口空气的过滤器被冷冻水堵塞的危险，这将提高发动机的可靠性并且使燃料点燃的波动较小。
已经有为了把预热的进口空气提供给发动机的一些不同的解决方案，但所有已知解决方案都具有缺陷，因为它们要么复杂，要么占用大量空间，要么效果不足。复杂和需要大量空间的解决方案不能适用于那些需要由操作者在长距离移动期间携带的工具。
用来加热到发动机的进口空气的一种已知解决方案公开在专利文献DE 3523949A中，在该专利中，用来冷却汽缸的加热空气被引导到化油器的进口。然而，这种解决方案具有这样的缺陷：进口空气的温度会波动，并且当环境温度较低时不能提供进口空气以足够的加热。
发明内容
在附图中示出并且在权利要求书中限定的解决方案，是对所述问题的一种有效和较简单的解决方案。一种用来预热进口空气的装置实现该目的，当需要预热时，能启动该装置。当需要预热进口空气时才启动该装置的事实，使得有可能设计一种非常有效的装置。
请求保护的本发明的原理在于，依据是否需要预热，经不同通道把空气引导到发动机。如果不需要预热，则空气经位于曲轴箱外的通道被引导到化油器。当需要预热并且该装置被启动时，进口空气经过集成在曲轴箱壁中的通道引导，从而在空气到达化油器之前使由发动机中的燃烧产生的热量用来预热在通道中的空气。
这种解决方案也具有这样的优点：在曲轴箱的壁中的集成通道作为曲轴箱的一个冷却器工作，从而位置靠近曲轴箱的元件暴露于较少热量。
附图说明
请求保护的本发明的一个实施例表明在附图中。
图1示出穿过装有用来预热进口空气的要求保护装置的垂直剖面。
图2示出图1的装置的一部分的侧视图。
具体实施方式
在图1中，示出曲轴箱的有关部分和与向清除锯提供动力的内燃机有关的部分。欲到发动机的空气进入一个未表明的空气进口，并且然后被引导到一个箱形消音器11。箱形消音器11划分成用于空气的两个不同通道12和13。第一通道12位于箱形消音器11的底部，并且当空气需要预热时被使用，而第二通道13这样布置，即通向通道13的进口垂直于通向第一通道12的进口，并且在箱形消音器11的底部上方的一段距离处。当不需要预热空气时，使用第二通道13。
第一通道12通到一条首先指向曲轴箱10的中心而后转弯的通道14，从而通道14在与曲轴15平行的方向上被引导在曲轴箱10的壁中。当发动机正在运行时，在曲轴箱10中的壁被加热。在低环境温度期间，这些热壁加热在通道14中的空气，从而使空气的温度升高。
第二通道13也通到一条通道16。这条通道16平行于另一条通道14被引导，但位于曲轴箱10的壁的外面。这条通道16在不需要预热空气时被使用。
两条通道14和16会聚成一条第三通道17。在第三通道17中，放置一个过滤器18，以便在空气到达化油器19之前进一步清洁空气。
一根杆20启动空气的预热。杆20包括两个盖22和23，这两个盖22和23位于在箱形消音器11中的两条通道12和13之间。一个螺丝21在两个位置之间旋转杆20。在第一位置，通道12是打开的而通道13被盖23关闭，从而空气穿过曲轴箱10的壁被引导，而使空气被加热。在另一位置，盖22关闭通道12，而通道13是打开的，从而没有预热空气。

Claims (8)

1.一种用来预热通到内燃机的进口空气的装置，该内燃机向可携带工具提供动力，依据对进口空气预热的需要，启动或停止所述装置，所述工具包括一个曲轴箱(10)、一个曲轴(15)及一个化油器(19)，其特征在于，当启动进口空气的预热时，通到化油器(19)的进口空气经一条第一通道(14)被引导，所述通道(14)整体成型在曲轴箱(10)中，而当停止进口空气的预热时，进口空气经位于曲轴箱(10)外的一条第二通道(16)被引导。
2.如权利要求1所述的装置，其特征在于，进口空气经一个消音器(11)进入，并且然后在它到达化油器(19)之前，经选择的第一或第二通道(14，16)继续通到一个空气过滤器(18)。
3.如权利要求1或2所述的装置，其特征在于，由一根杆(20)启动或停止预热。
4.如权利要求3所述的装置，其特征在于，杆(20)在两个不同位置之间旋转，在一个位置启动预热而在另一个位置停止预热。
5.如权利要求4所述的装置，其特征在于，通过旋转在杆(20)上的一个螺丝(21)启动预热，从而使杆位于通向第一通道(14)的进口是打开的位置，并且通过把杆(20)旋转到一个位置而关闭和停止第二通道(16)，在该位置，第一通道(14)的进口被关闭而第二通道(16)是打开的。
6.如权利要求3-5任一项所述的装置，其特征在于，杆(20)包括盖(22，23)，盖(22，23)覆盖到第一和第二通道(14，16)的进口。
7.如以上权利要求任一项所述的装置，其特征在于，第一通道(14)位于曲轴箱(10)的壁内。
8.如权利要求7所述的装置，其特征在于，第一通道(14)的轴向平行于曲轴(15)的轴向。
CNB028188705A 2001-09-27 2002-09-17 用于内燃机的进口空气预热装置 Expired - Fee Related CN1311155C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0103236A SE519999C2 (sv) 2001-09-27 2001-09-27 Förvärmning av insugsluft
SE01032366 2001-09-27

Publications (2)

Publication Number Publication Date
CN1558987A true CN1558987A (zh) 2004-12-29
CN1311155C CN1311155C (zh) 2007-04-18

Family

ID=20285481

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB028188705A Expired - Fee Related CN1311155C (zh) 2001-09-27 2002-09-17 用于内燃机的进口空气预热装置

Country Status (6)

Country Link
US (1) US7143752B2 (zh)
JP (1) JP4142578B2 (zh)
CN (1) CN1311155C (zh)
DE (1) DE10297268B4 (zh)
SE (1) SE519999C2 (zh)
WO (1) WO2003027478A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008003781U1 (de) 2008-03-18 2009-08-13 Dolmar Gmbh Vorrichtung zur Reinigung von Ansaugluft
CN105156238B (zh) * 2015-08-07 2017-07-28 天津大学 一种光学发动机快速进气加热装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE15069E (en) * 1921-03-22 By mary c
US1425054A (en) * 1920-09-28 1922-08-08 Ricardo Harry Ralph Hydrocarbon engine
US4175524A (en) * 1977-11-17 1979-11-27 Chrysler Corporation Inlet air temperature control for automobile engine
JPS55104561A (en) * 1978-12-28 1980-08-11 Shindaiwa Kogyo Kk Supply of carburetor air in chain-saw and air duct used in the same
JPS56133953U (zh) * 1980-03-12 1981-10-12
FR2549900B1 (fr) * 1983-07-08 1985-11-29 Peugeot Aciers Et Outillage Col d'entree d'air pour filtre a air de moteur a combustion interne
SE450721B (sv) * 1984-06-12 1987-07-20 Volvo Ab Ventilanordning for fordelning av forvermd respektive icke forvermd insugningsluft till en forbrenningsmotor
SE8500666L (sv) * 1985-02-13 1986-05-20 Electrolux Ab Anordning for intag av kyl- och forbrenningsluft
DE3523949C2 (de) * 1985-07-04 1995-04-27 Stihl Maschf Andreas Vorrichtung zur Steuerung der Ansaugluft für den Vergaser eines handgesteuerten Arbeitsgerätes
JPS6393460U (zh) * 1986-12-09 1988-06-16
DE3729814C2 (de) * 1987-09-05 1996-02-15 Stihl Maschf Andreas Tragbare Motorkettensäge
US4846136A (en) * 1988-02-26 1989-07-11 Brunswick Corporation Exhaust heated induction air for two-cycle engine
CN2118823U (zh) * 1992-04-02 1992-10-14 吕子山 汽油发动机进气增温增压节油器
CN2316462Y (zh) * 1997-05-17 1999-04-28 岳阳恒立制冷集团有限公司 发动机带压缩机的动力机组
DE10140905B4 (de) * 2001-08-21 2007-07-26 Andreas Stihl Ag & Co. Handgeführtes Arbeitsgerät mit einem Verbrennungsmotor und einer Vergaservorwärmung

Also Published As

Publication number Publication date
US20050028794A1 (en) 2005-02-10
DE10297268T5 (de) 2004-11-04
SE519999C2 (sv) 2003-05-06
JP4142578B2 (ja) 2008-09-03
US7143752B2 (en) 2006-12-05
JP2005504214A (ja) 2005-02-10
WO2003027478A1 (en) 2003-04-03
SE0103236L (sv) 2003-03-28
CN1311155C (zh) 2007-04-18
DE10297268B4 (de) 2012-10-04
SE0103236D0 (sv) 2001-09-27

Similar Documents

Publication Publication Date Title
RU2695878C2 (ru) Способ для двигателя с наддувом
CN1991147B (zh) 具有检测内燃机状态的传感器的空冷式内燃机
US20150026988A1 (en) Hand-held work implement
JP2007247560A (ja) 内燃機関
ATE343056T1 (de) Ventilkomponentensatz für interne bypass-strömung
US20070074708A1 (en) Blow-by gas recirculation system
US5499604A (en) Positive crank ventilation apparatus for an engine system
CN109070730A (zh) 保温罩的安装结构
US4890595A (en) Motor-driven chain saw having an arrangement for preheating fresh intake air
CN1311155C (zh) 用于内燃机的进口空气预热装置
US20190032531A1 (en) Engine and engine work machine
US20050145215A1 (en) Crankcase scavenged four-stroke engine
US7243621B2 (en) Two-stroke engine
CA2251764A1 (en) Hand-guided appliance with an internal combustion engine with direct electronic injection
EP0653553A2 (en) Cooling system for an internal combustion engine
US3245390A (en) Climatic control apparatus for an air cooled engine
US7975678B2 (en) Exhaust- gas recirculation control responsive to a load signal at an in line injection pump
JP6976208B2 (ja) 汎用エンジン
JP2007146717A (ja) エンジンの防音装置
JP2006037881A (ja) 内燃機関の冷却システムおよびこれを搭載する移動体
JP2853003B2 (ja) エンジンの水冷装置
JP2022029353A (ja) エンジン装置
US7487746B2 (en) Engine-driven tool
JPS6388214A (ja) 強制空冷式バ−チカルエンジン
JPH062523A (ja) アルコールエンジンの制御装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HUSQVARNAA CO., LTD.

Free format text: FORMER OWNER: AKTIEBOLAGET ELECTROLUX

Effective date: 20070518

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20070518

Address after: The Swedish city of

Patentee after: Husqvarna AB

Address before: Stockholm

Patentee before: Aktiebolaget Electrolux

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070418

Termination date: 20180917

CF01 Termination of patent right due to non-payment of annual fee