CN1851246A - 内燃机 - Google Patents

内燃机 Download PDF

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CN1851246A
CN1851246A CNA2006100777839A CN200610077783A CN1851246A CN 1851246 A CN1851246 A CN 1851246A CN A2006100777839 A CNA2006100777839 A CN A2006100777839A CN 200610077783 A CN200610077783 A CN 200610077783A CN 1851246 A CN1851246 A CN 1851246A
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compressor
guider
guide vane
internal
combustion engine
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CN1851246B (zh
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F·维尔德克
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MAN Energy Solutions SE
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MAN B&W Diesel GmbH
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    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
    • F02B37/225—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits air passages
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/16—Other safety measures for, or other control of, pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supercharger (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

本发明涉及一种内燃机，其具有发动机、废气涡轮增压器和增压空气冷却器，其中，所述的废气涡轮增压器包括用于对离开所述发动机的废气流降压的涡轮机和用于压缩输送给所述发动机的燃烧用空气流的压缩机，其中，增压空气冷却器设置于压缩机和发动机之间，并且其中该压缩机具有带有转子叶片的压缩机转子和安置在压缩机转子下游的带有导向叶片(10)的压缩机导向器(11)。根据本发明，在所述压缩机导向器(11)的至少几个导向叶片(10)中集成孔(17，18)，其中通过所述孔(17，18)可将在增压空气冷却器的下游分流及冷却了的增压空气导回或导入在压缩机导向器(11)区域中的未被冷却的空气流中。

Description

内燃机
技术领域
本发明涉及一种根据权利要求1前序部分所述的内燃机。
背景技术
为提高内燃机的效率，现有技术公开了给内燃机配备废气增压装置。在废气增压装置或涡轮增压装置中，由发动机导出的废气在涡轮机中降压，其中涡轮机驱动压缩机，在压缩机中，要输送给发动机的燃烧用空气被压缩。在压缩机和发动机之间接通一个增压空气冷却器，用来将压缩的燃烧用空气冷却到一个确定的温度。通过这种废气增压装置或涡轮增压装置可以提高内燃机的效率。
废气涡轮增压器的压缩机具有一个压缩机转子和定位在压缩机转子下游的压缩机导向器。该压缩机导向器具有多个固定的导向叶片，其用于在压缩机中压缩的燃烧用空气的流体转向。由压缩机导向器出发，压缩的燃烧用空气流通常首先被导引通过螺旋型外壳，接着被输送给增压空气冷却器。在压缩机导向器的区域中，压缩的燃烧用空气流具有数量级约为220℃的温度。在增压空气冷却器中，压缩的燃烧用空气被冷却到数量级约为45℃的温度，其中，但由于流动损失，燃烧用空气压力在压缩机导向器与增压空气冷却器之间减小。
压缩机导向器区域中的高温易于污染的形成。尤其在压缩含油空气的情况下，由于焦化可以产生对压缩机导向器的污染。实践中公知例如用水清洁压缩机导向器。但这却具有如下缺点，即为了清洁需要一种单独的介质。
发明内容
由此出发，本发明的任务是提供一种新型的内燃机。
该任务通过根据权利要求1所述的内燃机解决。根据本发明，在压缩机导向器的至少几个导向叶片中集成有孔，其中通过所述的孔可将在增压空气冷却器的下游分流及冷却了的增压空气导回或导入在压缩机导向器区域中的未被冷却的空气流中。
根据本发明建议，为冷却压缩机导向器，在其导向叶片中集成孔，并且通过所述的孔，将在增压空气冷却器的下游分流及因此冷却的增压空气导回或导入在压缩机导向器区域中的未被冷却的空气流中。由此实现对内燃机的废气涡轮增压器的压缩机导向器的冷却，该内燃机可不使用单独的冷却介质，此外内燃机由于冷却不会遭受其他或附加的污染危险。因此，利用本发明可以实现对废气涡轮增压器的压缩机导向器尤为有效的冷却。
附图说明
本发明的优选改进方案由从属权利要求和下面的说明给出。借助于附图进一步解释本发明的一个实施例，但本发明并不局限于此实施例。附图示出：
图1根据本发明的内燃机在废气涡轮增压器的压缩机导向器的导向叶片区域中的局部视图；
图2按图1中线II-II方向的压缩机导向器的导向叶片的横截面图。
具体实施方式
下面参考图1和2更详细地说明本发明。
图1示出了根据本发明的内燃机的废气涡轮增压器在压缩机导向器11的导向叶片10区域中的局部视图。该压缩机导向器11定位在废气涡轮增压器的压缩机转子的下游、废气涡轮增压器的所谓的螺旋形外壳的上游以及增压空气冷却器的下游。
废气涡轮增压器的压缩机构造成离心式压缩机，从而使压缩机导向器11的导向叶片10的流体进入边12和流体排出边13在压缩机的轴向方向延伸。在每个导向叶片10的流体进入边12和流体排出边13之间，在该导向叶片10的一侧上构造一个所谓的压力侧14，在该导向叶片10的对置侧上构造一个所谓的吸入侧15。由此，压缩机导向器11在径向方向或切线方向被通流。
如可从图1中看出的那样，压缩机导向器11的导向叶片10固定在压缩机导向器11的壳体16上。
在根据本发明的内燃机的废气涡轮增压器的压缩机区域中压缩的燃烧用空气具有数量级约为220℃的温度。为冷却压缩机导向器11，根据本发明建议，在压缩机导向器11的导向叶片10中集成有孔，其中通过所述的孔，在增压空气冷却器的下游分流的、由此被冷却的燃烧用空气被导回或导入在压缩机导向器11区域中的未被冷却的燃烧用空气流中。由此可以对压缩机导向器11进行特别有效的冷却，而不会存在对压缩机导向器11的污染危险。
如可从图1中看出的那样，为此在压缩机导向器11的每个导向叶片10中都集成了一个在压缩机或压缩机导向器的轴向方向延伸的供给孔17。由该供给孔17出发分出多个孔18，其排出开口19定位在相应导向叶片10的流体进入边12的下游和附近。由供给孔17分出的孔18基本上在径向方向或切线方向上延伸。如可从图1中看出的那样，从导向叶片10的轴向方向上观察，多个孔18前后布置，其都是从供给孔17分出。根据图2，在一个轴向位置上从供给孔17分别分出两个孔18，其中所述孔18中的一个孔在压力侧14的区域中具有一个排出开口19，第二个孔18在导向叶片10的吸入侧15的区域中具有一个排出开口19，也就是分别位于流体进入边12的下游并与该流体进入边12相邻。
如可从图1中看出的那样，供给孔17也同样延伸通过外壳16，其中在外壳16上接有一个管路20，其将在增压空气冷却器下游分流及冷却了的增压空气输送给供给孔17，并由此输送给压缩机导向器11。
根据图2，供给孔17集成在压缩机导向器11的导向叶片10的部段或区域中，导向叶片10的横截面形状在该段部或区域中具有最大的厚度，也就是说在该段部或区域中，压力侧14与吸入侧15之间的距离最大。
如上所述，排出开口19定位在相应导向叶片10的流体进入边12的附近，位于流体进入边12的下游。由此可以保证在孔18的排出开口19区域中不存在完全滞止压力(staudruck)，由此在增压空气冷却器的下游中的压力与排出开口处的壁压力之间的压差足够将在增压空气冷却器下游分流的燃烧用空气通过排出开口19导入到燃烧用空气流中。
                             附图标记列表
10    导向叶片
11    压缩机导向器
12    流体进入边
13    流体排出边
14    压力侧
15    吸入侧
16    外壳
17    供给孔
18    孔
19    排出开口
20    管路

Claims (5)

1.内燃机，其具有发动机、废气涡轮增压器和增压空气冷却器，其中，所述的废气涡轮增压器包括用于对离开所述发动机的废气流降压的涡轮机和用于压缩输送给所述发动机的燃烧用空气流的压缩机，其中，增压空气冷却器设置于压缩机和发动机之间，并且其中该压缩机具有带有转子叶片的压缩机转子和安置在压缩机转子下游的带有导向叶片(10)的压缩机导向器(11)，其特征在于，在所述压缩机导向器(11)的至少一些导向叶片(10)中集成有孔(17，18)，其中通过所述孔(17，18)可将在增压空气冷却器的下游分流及冷却了的增压空气导回或导入在压缩机导向器(11)区域中的未被冷却的空气流中。
2.根据权利要求1所述的内燃机，其特征在于，所述的压缩机是离心式压缩机，其中，所述压缩机导向器(11)的导向叶片(10)的流体进入边(12)和流体排出边(13)在压缩机的轴向方向延伸，从而使该压缩机在径向方向或切线方向被通流。
3.根据权利要求1或2所述的内燃机，其特征在于，至少在所述压缩机导向器(11)的一些导向叶片(10)中分别集成居中的、在压缩机的轴向方向延伸的供给孔(17)，其中，从相应供给孔(17)分别分出多个孔(18)，这些孔(18)的排出开口(19)定位在相应导向叶片(10)的流体进入边(12)的附近和下游。
4.根据权利要求3所述的内燃机，其特征在于，所述的排出开口(19)定位在压缩机导向器(11)的相应导向叶片(10)的吸入侧(15)区域中和/或压力侧(14)区域中。
5.根据权利要求3或4所述的内燃机，其特征在于，所述的供给孔(17)设置于压缩机导向器(11)的导向叶片(10)的如下区域中，即在该区域中，导向叶片(10)的横截面形状具有最大厚度。
CN2006100777839A 2005-04-22 2006-04-24 内燃机系统 Expired - Fee Related CN1851246B (zh)

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DE102005018771.4A DE102005018771B4 (de) 2005-04-22 2005-04-22 Brennkraftmaschine
DE102005018771.4 2005-04-22

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CN (1) CN1851246B (zh)
CH (1) CH698302B1 (zh)
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JP4723411B2 (ja) 2011-07-13
JP2006300063A (ja) 2006-11-02
DE102005018771B4 (de) 2015-06-18
KR20060111388A (ko) 2006-10-27
DE102005018771A1 (de) 2006-10-26
KR101176662B1 (ko) 2012-08-23
CN1851246B (zh) 2010-05-12

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