CN101446215B - 内燃机的换气阀 - Google Patents
内燃机的换气阀 Download PDFInfo
- Publication number
- CN101446215B CN101446215B CN2008101788100A CN200810178810A CN101446215B CN 101446215 B CN101446215 B CN 101446215B CN 2008101788100 A CN2008101788100 A CN 2008101788100A CN 200810178810 A CN200810178810 A CN 200810178810A CN 101446215 B CN101446215 B CN 101446215B
- Authority
- CN
- China
- Prior art keywords
- valve
- groove
- slip ring
- valve rod
- ring
- 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.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 37
- 230000002000 scavenging effect Effects 0.000 claims description 16
- 239000008041 oiling agent Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 239000003779 heat-resistant material Substances 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 238000012797 qualification Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Lift Valve (AREA)
Abstract
本发明涉及内燃机的换气阀,尤其是柴油机的换气阀,它包括具有阀杆(11)和阀盘的阀锥,阀杆(11)在一个阀杆导向机构(10)的凹座(12)中可线性移动地导引,阀盘的阀座面与一个阀座环这样地配合作用,使得在关闭状态下该阀座面压紧在阀座环上和在打开状态下该阀座面从阀座环上抬起。按照本发明,为了密封阀杆(11)和阀杆导向机构(10)的凹座(12)之间的间隙(13),至少一个由耐热的例如金属材料或陶瓷材料制成的滑环(15)啮合在阀杆(11)的槽(16)中或阀杆导向机构(10)的槽中,该滑环或每个滑环(15)的厚度小于相应的滑环(15)所啮合到其中的槽(16)的槽宽,从而在阀杆(10)运动时润滑剂以限定的泵送作用越过相应的滑环(15)。
Description
技术领域
本发明涉及一种按照权利要求1的前序部分所述的内燃机的换气阀,尤其是柴油机的换气阀。
背景技术
内燃机具有多个换气阀,其中内燃机的换气阀尤其是指这些气阀,即可以将增压空气引入内燃机气缸中或将废气排出内燃机气缸所通过的气阀。
由实际中已知的换气阀具有可以平移移位的阀锥,它具有阀杆和阀盘。阀锥的阀杆在阀杆导向机构的凹座中可线性移动地导引或支承。阀锥的阀盘的阀座面与阀座环这样地配合作用,使得在换气阀关闭状态下阀盘的阀座面压紧在阀座环上,并且在换气阀打开状态下阀盘的阀座面从阀座环上抬起。
在由实际中已知的换气阀中,阀杆和阀杆导向机构的凹座之间的间隙通过一个阀杆密封机构进行密封,该阀杆密封机构包括至少一个由弹性材料制成的密封环,以便减小气阀的磨损和实现在阀杆和阀杆导向机构之间的滑动。
当阀杆密封机构传送的润滑剂太少时,由于润滑程度太低可以会产生不希望的混合摩擦,它可以导致阀锥卡住。相反,如果通过阀杆密封机构传送了太多的润滑剂,那么内燃机的排放值上升并且阀锥可能积炭。因此需要一种避免上述缺点的换气阀。
发明内容
由此出发,本发明要解决的问题在于,提供内燃机的尤其是柴油机的一种新型的换气阀。
该问题通过一种按照权利要求1的换气阀解决。按照本发明,为了密封阀杆和阀杆导向机构的凹座之间的间隙,至少一个由耐热的例如金属材料或陶瓷材料制成的滑环啮合在阀杆的一个槽中或阀杆导向机构的一个槽中,其中该滑环或每个滑环的厚度小于相应的滑环啮合到其中的槽的槽宽,从而在阀杆运动时润滑剂以限定的泵送作用越过相应的滑环。
在按照本发明的换气阀中,对阀杆和阀杆导向机构的凹座之间的间隙的密封是通过至少一个由耐热的材料例如金属材料或陶瓷材料制成的滑环实现的,该滑环这样地啮合到阀杆的一个槽中或阀杆导向机构的一个槽中,即该滑环或每个滑环的厚度小于相应的滑环啮合到其中的槽的槽宽。由此当阀杆在阀杆导向机构的凹座中运动时可以实现一种用于润滑剂的限定的泵送作用,从而始终有一个精确限定的润滑剂数量可以越过由该或每个滑环形成的阀杆密封机构。
由此保证在阀杆和阀杆导向机构之间始终具有充分的润滑。另一方面避免过多的润滑剂从阀杆密封机构上转送过去。
本发明的优选的扩展结构由从属权利要求和后面的说明中得出,本发明的一个实施例将对照附图详细进行解释,但是本发明不局限于此实施例。
附图发明
图1是按照本发明的内燃机的尤其是柴油机的换气阀的局部截面图,
图2至图4是在不同的状态下图1的局部截面图的细节图。
具体实施方式
图1示出了一个按照本发明的内燃机换气阀在阀杆导向机构10和阀杆11的区域中的局部截面图,其中阀杆11在阀杆导向机构10的凹座12中可线性移动地导引或支承。
在阀杆11上设有一个没有示出的阀盘,其中阀杆和阀盘一起形成换气阀的一个阀锥。阀锥的阀盘的阀座面与一个同样没有示出的阀座环这样地配合作用,使得在关闭状态下阀盘的阀座面压紧在阀座环上,并且在打开状态下阀盘的阀座面从阀座环上抬起。
如可以从图3至4中最佳地看见的那样,阀杆11具有一个外径,该外径小于阀杆导向机构10的凹座12的内径,从而在阀杆11和阀杆导向机构10之间形成间隙13。
在阀杆11和阀杆导向机构10之间的间隙13利用阀杆密封机构14进行密封,该阀杆密封机构按照图1由三个沿着阀杆11的轴向前后相继定位的滑环形成,这些滑环啮合在阀杆11的各一个分开的槽16中。图2至4示出了图1的在一个这种滑环15区域中的细节图,该滑环啮合在阀杆11的一个槽16中。
如已经描述的那样,在图2至4的实施例中每个滑环15啮合在阀杆11的一个槽16中,并且这样地啮合,使得滑环15的厚度或轴向尺寸小于该槽16的槽宽或轴向尺寸。依据阀杆11相对于阀杆导向机构10的运动,其在图2至4中通过箭头表示出,滑环15在槽16中的相对位置可以改变,由此最后提供一种用于润滑剂的限定的泵送作用,该润滑剂可以以一种限定的塑料越过相应的滑环15。
如图2至4所示,当滑环15啮合到阀杆11的槽16中时滑环15的外径在装入状态下对应于阀杆导向机构10的凹座12的内径,从而滑环15始终贴靠在阀杆导向机构10的凹座12上。相反,滑环15的内径大于相应的槽16的槽底直径,从而按照图2至4在滑环15和相应的槽16之间形成一个间隙,通过该间隙可以将润滑剂在泵送作用的方向上输送。
通过滑环15的厚度与相应的槽16的槽宽的不同和通过滑环15的内径和相应的槽16的槽底直径之间的不同,可以确定地调节越过相应的滑环15的润滑剂的数量。
与本发明相关联地,重要的是滑环15不是由弹性体材料而是由耐热的例如金属的或陶瓷的和由此非弹性体的材料制成。每个滑环15因此耐热的,从而滑环可以紧靠近气缸和由此靠近高温的内燃机燃烧气体进行安置。
当然该一个或多个滑环也可以处于气阀导向机构的上部区域中。
与所示的实施例不同,该滑环或每个滑环也可以啮合阀杆导向机构的槽中。在这种情况下该滑环或每个滑环的厚度也小于相应的槽的槽宽。但是在这种情况下,与所示的实施例不同,相应的滑环的内径对应于阀杆的外径,从而滑环在装入的状态下始终贴靠在阀杆上。相应的滑环的外径在这种情况下小于阀杆导向机构的相应的槽的槽底直径。
在本发明的换气阀中由此利用润滑剂对阀杆导向机构中的阀杆进行润滑,该润滑剂可以越过至少一个由耐热的例如金属的材料或陶瓷的材料制成的耐温度变化的滑环,其中该滑环或每个滑环这样地啮合在阀杆或阀杆导向机构的槽中,即相应的滑环的厚度或轴向延长尺寸小于其中该相应的滑环啮合的槽的槽宽或轴向延长尺寸。
由此当阀杆11在阀杆导向机构10中运动时可以在相应的槽中实现滑环15的一种振荡的轴向运动,由此实现润滑剂的确定的泵送作用,从而一种精确限定的润滑剂数量可以越过相应的滑环15。
附图标记表
10 阀杆导向机构
11 阀杆
12 座
13 间隙
14 阀杆密封机构
15 滑环
16 槽
Claims (3)
1.内燃机的换气阀,该换气阀包括具有阀杆和阀盘的阀锥,其中阀杆在一个阀杆导向机构的凹座中可线性移动地导引,并且阀盘的阀座面与一个阀座环这样地配合作用,使得在关闭状态下该阀座面压紧在阀座环上和在打开状态下该阀座面从阀座环上抬起,其特征在于,为了密封阀杆(11)和阀杆导向机构(10)的凹座(12)之间的间隙(13),多个由耐热的金属材料或陶瓷材料制成的滑环(15)啮合在阀杆(11)的槽(16)中,其中每个滑环(15)的厚度小于相应的滑环(15)所啮合到其中的槽(16)的槽宽,从而在阀杆(10)运动时润滑剂以限定的泵送作用越过相应的滑环(15),
其中当每个滑环(15)啮合到阀杆(11)的槽(16)中时,相应的滑环(15)的外径对应于阀杆导向机构(10)的凹座(12)的内径并且相应的滑环(15)的内径大于相应的槽(16)的槽底直径。
2.根据权利要求1所述的换气阀,其特征在于,阀杆(11)的外径小于阀杆导向机构(10)的凹座(12)的内径。
3.根据权利要求1所述的换气阀,其特征在于,所述内燃机是柴油机。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007057953.7A DE102007057953B4 (de) | 2007-12-01 | 2007-12-01 | Gaswechselventil einer Dieselbrennkraftmaschine |
DE102007057953.7 | 2007-12-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101446215A CN101446215A (zh) | 2009-06-03 |
CN101446215B true CN101446215B (zh) | 2012-12-05 |
Family
ID=40097369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101788100A Expired - Fee Related CN101446215B (zh) | 2007-12-01 | 2008-12-01 | 内燃机的换气阀 |
Country Status (5)
Country | Link |
---|---|
JP (2) | JP2009133307A (zh) |
KR (1) | KR20090057165A (zh) |
CN (1) | CN101446215B (zh) |
DE (1) | DE102007057953B4 (zh) |
FI (1) | FI123592B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103883373B (zh) * | 2014-03-27 | 2017-01-18 | 潍柴动力股份有限公司 | 一种气门导管及其制造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1972650A (en) * | 1934-02-20 | 1934-09-04 | Walter T Gassaway | Removable valve guide |
DD156283A1 (de) * | 1981-02-12 | 1982-08-11 | Eberhard Rust | Hubventil fuer viertaktbrennkraftmaschinen |
JPS57193001U (zh) * | 1981-05-29 | 1982-12-07 | ||
JPS5949307A (ja) | 1982-09-14 | 1984-03-21 | Niigata Eng Co Ltd | 排気弁等の可動軸の給油装置 |
US5062397A (en) | 1990-09-07 | 1991-11-05 | Eaton Corporation | Valve stem seal |
JPH0828350A (ja) * | 1994-07-19 | 1996-01-30 | Isuzu Ceramics Kenkyusho:Kk | ガスエンジンにおける副室弁のシール構造 |
JPH09125922A (ja) * | 1995-11-07 | 1997-05-13 | Kubota Corp | エンジンの弁案内装置 |
-
2007
- 2007-12-01 DE DE102007057953.7A patent/DE102007057953B4/de not_active Expired - Fee Related
-
2008
- 2008-11-07 JP JP2008286970A patent/JP2009133307A/ja active Pending
- 2008-11-17 KR KR1020080113865A patent/KR20090057165A/ko not_active Application Discontinuation
- 2008-11-25 FI FI20086125A patent/FI123592B/fi active IP Right Grant
- 2008-12-01 CN CN2008101788100A patent/CN101446215B/zh not_active Expired - Fee Related
-
2012
- 2012-09-19 JP JP2012205485A patent/JP2012246932A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2012246932A (ja) | 2012-12-13 |
FI20086125A0 (fi) | 2008-11-25 |
FI123592B (fi) | 2013-07-31 |
JP2009133307A (ja) | 2009-06-18 |
DE102007057953B4 (de) | 2018-05-17 |
CN101446215A (zh) | 2009-06-03 |
FI20086125A (fi) | 2009-06-02 |
DE102007057953A1 (de) | 2009-06-04 |
KR20090057165A (ko) | 2009-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6767398B2 (ja) | 弁座リングおよび弁を含むトライボロジーシステム | |
US6938877B2 (en) | Valve stem seal assembly | |
KR101786755B1 (ko) | 가스 쿨러 | |
CN103032627B (zh) | 阀杆密封装置 | |
CN109296765B (zh) | 与流体阀一起使用的流体流动控制装置 | |
CN101446215B (zh) | 内燃机的换气阀 | |
WO2019208182A1 (ja) | ピストンリング及び圧縮機 | |
CN102686838B (zh) | 发动机阀装置 | |
US10487405B2 (en) | Piston ring and internal combustion engine | |
EP2789917A2 (en) | Dynamic valve seal arrangement | |
RU2007139702A (ru) | Улучшенный приводной узел на текучей среде для применения внутри турбомашины | |
EP3115654A1 (en) | Piston ring configured to reduce friction | |
US20190032488A1 (en) | Heat engine, in particular orc engine | |
US10077838B2 (en) | Piston ring configured to reduce friction | |
Ashraf et al. | Effect of load on the tribo-performance of 23-8N valve steel against GGG-60 seat material | |
US2354988A (en) | Valve for internal-combustion engines | |
CN107000137A (zh) | 用于获得活塞环的加工、活塞环以及内燃机 | |
CN206338403U (zh) | 用于石油机械的多工况密封圈 | |
RU227335U1 (ru) | Уплотнение штока клапана | |
Mantey et al. | Exhaust valve & valve seat insert–development for an industrial LPG application | |
KR101843196B1 (ko) | 내마모성이 개선된 로커암 샤프트 및 이를 포함하는 로커암 샤프트-부시 조립체 | |
SU957773A3 (ru) | Распределительный кулачок двигател внутреннего сгорани | |
US2180347A (en) | Reciprocating valve | |
RU1828965C (ru) | Уплотнение | |
RU1820111C (ru) | Уплотнение пары поршень-цилиндр двигател внутреннего сгорани |
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 | ||
CP01 | Change in the name or title of a patent holder |
Address after: Augsburg Patentee after: MAN ENERGY SOLUTIONS SE Address before: Augsburg Patentee before: Man Diesel & Turbo SE |
|
CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190423 Address after: Augsburg Patentee after: MAN DIESEL & TURBO SE Address before: Augsburg Patentee before: MAN DIESEL SE |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 |
|
CF01 | Termination of patent right due to non-payment of annual fee |