JP2006300063A - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

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JP2006300063A
JP2006300063A JP2006114599A JP2006114599A JP2006300063A JP 2006300063 A JP2006300063 A JP 2006300063A JP 2006114599 A JP2006114599 A JP 2006114599A JP 2006114599 A JP2006114599 A JP 2006114599A JP 2006300063 A JP2006300063 A JP 2006300063A
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compressed air
compressor
guide device
air guide
internal combustion
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JP4723411B2 (en
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Ferdinand Werdecker
ヴェルデッカー フェルディナント
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MAN B&W Diesel GmbH
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MAN B&W Diesel GmbH
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    • 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
    • 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
    • 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

<P>PROBLEM TO BE SOLVED: To cool a compressed air cooling system, without generating one layer or additional stain for cooling, without using a separate cooling medium, in an internal combustion engine having: an engine; an exhaust driven supercharger; an intercooler; the supercharger having a turbine for expanding an exhaust gas flow coming out of the engine: a compressor for compressing a combustion air flow to be supplied to the engine, with the intercooler connected between the compressor and the engine, and with the compressor having a compressor rotor with a moving blade; and a compressed air guide device 11 with a stationary blade 10 arranged on its downstream side. <P>SOLUTION: Holes 17 and 18 are arranged in at least several stationary blades 10 of the compressed air guide device 11, and cooled supercharging air branching off on the downstream side of the intercooler is returned or introduced to an uncooled air flow in an area of the compressed air guide device 11 via the holes 17 and 18. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は請求項１の前文に記載の内燃機関に関する。   The invention relates to an internal combustion engine according to the preamble of claim 1.

内燃機関の効率を高めるべく、内燃機関に排気駆動過給機を装備することは従来から公知である。排気駆動過給運転時ないしターボチャージ運転時、エンジンから排出される排気ガスがタービン内で膨張し、その際、タービンがエンジンに供給すべき燃焼空気を圧縮する圧縮機を駆動する。圧縮済み燃焼空気を所定の温度に冷却するため、圧縮機とエンジンとの間にインタクーラ（過給空気冷却器）が挿入接続される。かかる排気駆動過給運転ないしターボチャージ運転によって、内燃機関の効率が向上する。   In order to increase the efficiency of an internal combustion engine, it is conventionally known to equip an internal combustion engine with an exhaust drive supercharger. During exhaust drive supercharging operation or turbo charge operation, exhaust gas discharged from the engine expands in the turbine, and at that time, the turbine drives a compressor that compresses combustion air to be supplied to the engine. In order to cool the compressed combustion air to a predetermined temperature, an intercooler (supercharged air cooler) is inserted and connected between the compressor and the engine. The efficiency of the internal combustion engine is improved by such an exhaust drive supercharging operation or turbocharge operation.

排気駆動過給機の圧縮機は、圧縮機ロータないし圧縮機インペラと、圧縮機ロータの下流に置かれた圧縮空気案内装置とを利用している。この案内装置は、圧縮機で圧縮した燃焼空気を流れ転向するために用いる複数の静翼（固定案内羽根）を備える。圧縮済み燃焼空気流は、通常、圧縮空気案内装置から出て初めて渦形室を通って導かれ、続いてインタクーラに入る。圧縮済み燃焼空気流は、圧縮空気案内装置の領域で、約２２０℃の温度を有している。圧縮済み燃焼空気流はインタクーラで約４５℃に冷却され、その際、圧縮空気案内装置とインタクーラとの間の流れ損失のために、燃焼空気圧力が低下する。   The compressor of the exhaust-drive supercharger uses a compressor rotor or compressor impeller and a compressed air guide device placed downstream of the compressor rotor. This guide device includes a plurality of stationary blades (fixed guide blades) used to flow and turn combustion air compressed by a compressor. The compressed combustion air stream is usually directed through the vortex chamber only after exiting the compressed air guide and subsequently enters the intercooler. The compressed combustion air stream has a temperature of about 220 ° C. in the region of the compressed air guide device. The compressed combustion air stream is cooled to about 45 ° C. by the intercooler, where the combustion air pressure is reduced due to the flow loss between the compressed air guide and the intercooler.

圧縮空気案内装置の高温領域は汚れの発生を助長する。特に油含有空気の圧縮時、炭化のため圧縮空気案内装置の汚れが生ずる。実際、圧縮空気案内装置を水で掃除することは公知である。しかしこれは、掃除のために別個の媒体が必要になる欠点を持つ。   The high temperature region of the compressed air guide device promotes the generation of dirt. Particularly when oil-containing air is compressed, the compressed air guide device becomes dirty due to carbonization. In fact, it is known to clean compressed air guides with water. However, this has the disadvantage of requiring a separate medium for cleaning.

上述の点から出発して、本発明の課題は新しい内燃機関を提供することにある。   Starting from the above points, the object of the present invention is to provide a new internal combustion engine.

この課題は、請求項１に記載の内燃機関にて解決される。本発明に従い、圧縮空気案内装置の少なくとも幾つかの静翼に孔が設けられ、インタクーラの下流で分岐された冷却済み過給空気が、孔を経て圧縮空気案内装置の領域で未冷却空気流に帰還又は導入される。   This problem is solved by the internal combustion engine according to claim 1. In accordance with the present invention, at least some stationary vanes of the compressed air guide device are provided with holes, and the cooled supercharged air branched downstream of the intercooler passes through the holes into an uncooled air flow in the region of the compressed air guide device. Returned or introduced.

本発明は、圧縮空気案内装置を冷却すべく、静翼に孔を設け、この孔を経て、インタクーラの下流で分岐し、従って冷却した過給空気を、圧縮空気案内装置の領域において未冷却空気流に帰還ないし導入することを特徴とする。   In order to cool the compressed air guide device, the present invention provides a hole in the stationary blade, which branches through the hole downstream of the intercooler, so that the cooled supercharged air is uncooled air in the region of the compressed air guide device. It is characterized by being returned or introduced into the flow.

これにより、別個の冷却媒体を利用せずに、かつ冷却に伴い一層の又は追加的な汚れを生ぜずに、内燃機関の排気駆動過給機の圧縮空気案内装置を冷却できる。従って、本発明によれば、内燃機関の排気駆動過給機の圧縮空気案内装置の効果的な冷却が可能となる。   Accordingly, the compressed air guide device of the exhaust-drive supercharger of the internal combustion engine can be cooled without using a separate cooling medium and without causing further or additional contamination with cooling. Therefore, according to the present invention, it is possible to effectively cool the compressed air guide device of the exhaust drive supercharger of the internal combustion engine.

本発明の有利な実施態様は、従属請求項および以下の説明から明らかである。   Advantageous embodiments of the invention are evident from the dependent claims and the following description.

以下、図を参照し本発明の実施例を詳細に説明するが、本発明はこれに限定されない。   Embodiments of the present invention will be described below in detail with reference to the drawings, but the present invention is not limited thereto.

図１は、本発明に基づく内燃機関の排気駆動過給機における圧縮空気案内装置１１の静翼（案内羽根）１０の範囲を示す。圧縮空気案内装置１１は、排気駆動過給機の圧縮機ロータないしインペラの下流並びに排気駆動過給機の所謂渦形室の上流、且つインタクーラの下流に置かれている。   FIG. 1 shows a range of a stationary blade (guide vane) 10 of a compressed air guide device 11 in an exhaust drive supercharger for an internal combustion engine according to the present invention. The compressed air guide device 11 is placed downstream of the compressor rotor or impeller of the exhaust drive supercharger, upstream of the so-called spiral chamber of the exhaust drive supercharger, and downstream of the intercooler.

排気駆動過給機の圧縮機はラジアル圧縮機として構成され、圧縮空気案内装置１１の静翼１０の前縁（入口縁）１２と後縁（出口縁）１３は、各々圧縮機の軸方向に延びる。各静翼１０の前縁１２と後縁１３の間で、静翼１０の片側に所謂翼の腹１４が、反対側に所謂翼の背１５が形成されている。従って、圧縮空気案内装置１１は半径方向ないし接線方向に貫流される。   The compressor of the exhaust drive supercharger is configured as a radial compressor, and the leading edge (inlet edge) 12 and the trailing edge (outlet edge) 13 of the stationary blade 10 of the compressed air guide device 11 are respectively in the axial direction of the compressor. Extend. Between the leading edge 12 and the trailing edge 13 of each stationary blade 10, a so-called wing antinode 14 is formed on one side of the stationary blade 10, and a so-called wing back 15 is formed on the opposite side. Therefore, the compressed air guide device 11 flows through in a radial direction or a tangential direction.

図１から解るように、圧縮空気案内装置１１の静翼１０は、圧縮空気案内装置１１のハウジング１０に固定されている。   As can be seen from FIG. 1, the stationary blade 10 of the compressed air guide device 11 is fixed to the housing 10 of the compressed air guide device 11.

本発明に基づく内燃機関の排気駆動過給機の圧縮機の範囲で圧縮された燃焼空気は、約２２０℃の温度を有している。本発明は、圧縮空気案内装置１１を冷却すべく、圧縮空気案内装置１１の静翼１０に孔を設けることを特徴とする。該孔を通して、インタクーラの下流で分岐され、従って冷却済み燃焼空気が、圧縮空気案内装置１１の領域において未冷却空気流に帰還ないし導入される。この結果、圧縮空気案内装置１１の汚れの恐れなしに圧縮空気案内装置１１の特に効果的な冷却が可能となる。   The combustion air compressed in the range of the compressor of the exhaust-drive supercharger of the internal combustion engine according to the invention has a temperature of about 220 ° C. The present invention is characterized in that a hole is provided in the stationary blade 10 of the compressed air guide device 11 in order to cool the compressed air guide device 11. Through this hole, it is branched downstream of the intercooler, so that cooled combustion air is fed back or introduced into the uncooled air stream in the region of the compressed air guide device 11. As a result, the compressed air guide device 11 can be cooled particularly effectively without fear of the compressed air guide device 11 becoming dirty.

図１から解るように、圧縮空気案内装置１１の各静翼１０に、圧縮機ないし圧縮空気案内装置の軸方向に延びる供給孔１７を設けている。該供給孔１７から複数の孔１８が分岐し、これら孔１８の出口１９は、各々の静翼１０の前縁１２の下流に隣接して位置する。供給孔１７から分岐した孔１８は、略半径ないし接線方向に延びる。図１から解る如く、静翼１０の軸方向に複数の孔１８が連続して配置され、該孔１８は全て供給孔１７から分岐している。図２では、供給孔１７から１つの軸位置で各々２つの孔１８が分岐し、一方の孔１８は静翼１０の翼の腹１４の箇所に、他方の孔１８は静翼１０の翼の背１５の箇所に各々出口１９、詳しくは各前縁１２の下流にそれに隣接して出口１９を有する。   As can be seen from FIG. 1, each stationary blade 10 of the compressed air guide device 11 is provided with a supply hole 17 extending in the axial direction of the compressor or the compressed air guide device. A plurality of holes 18 branch from the supply hole 17, and an outlet 19 of these holes 18 is located adjacent to the downstream of the leading edge 12 of each stationary blade 10. A hole 18 branched from the supply hole 17 extends in a substantially radial or tangential direction. As can be seen from FIG. 1, a plurality of holes 18 are continuously arranged in the axial direction of the stationary blade 10, and all of the holes 18 are branched from the supply hole 17. In FIG. 2, two holes 18 each branch from the supply hole 17 at one axial position. One hole 18 is located at the antinode 14 of the vane 10 and the other hole 18 is the vane of the vane 10. Each of the spine 15 has an outlet 19, specifically downstream of each leading edge 12 and adjacent to it.

図１から解るように、供給孔１７も同様にハウジング１６を通って延び、該ハウジング１６に、インタクーラの下流で分岐した冷却済み過給空気を供給孔１７、従って圧縮空気案内装置１１に案内する配管２０が接続されている。   As can be seen from FIG. 1, the supply hole 17 likewise extends through the housing 16 and guides the cooled supercharged air branched downstream of the intercooler to the supply hole 17 and thus to the compressed air guide device 11. A pipe 20 is connected.

図２では、圧縮空気案内装置１１の静翼１０における静翼１０の横断面形状が最も厚い箇所、即ち翼の腹１４と翼の背１５の間隔が最大の箇所に供給孔１７を設けている。   In FIG. 2, the supply hole 17 is provided in the portion where the cross-sectional shape of the stationary blade 10 of the stationary blade 10 of the compressed air guide device 11 is the thickest, that is, the portion where the distance between the blade antinode 14 and the blade back 15 is the largest. .

既述のように、出口１９は、各静翼１０の前縁１２に隣接して、前縁１２の下流に位置している。この結果、孔１８の出口１９の領域で動圧が生ぜず、従ってインタクーラの下流における圧力と出口における壁圧との圧力勾配を、出口１９を経てインタクーラの下流で分岐された燃焼空気を燃焼空気流に導入するのに十分であるようになし得る。   As described above, the outlet 19 is located adjacent to the front edge 12 of each stationary blade 10 and downstream of the front edge 12. As a result, no dynamic pressure is generated in the region of the outlet 19 of the hole 18, and therefore, the pressure gradient between the pressure downstream of the intercooler and the wall pressure at the outlet is changed to the combustion air branched from the intercooler via the outlet 19. May be sufficient to be introduced into the stream.

本発明に基づく内燃機関における排気駆動過給機の静翼の範囲の部分図。FIG. 3 is a partial view of a range of a stationary blade of an exhaust driving supercharger in an internal combustion engine according to the present invention. 図１におけるＩＩ−ＩＩ線に沿った圧縮空気案内装置の静翼の断面図。Sectional drawing of the stationary blade of the compressed air guide apparatus in alignment with the II-II line in FIG.

符号の説明Explanation of symbols

１０ 静翼、１１ 圧縮空気案内装置、１２ 前縁、１３ 後縁、１４ 翼の腹、１５ 翼の背、１６ ハウジング、１７ 供給孔、１８ 孔、１９ 出口、２０ 配管 DESCRIPTION OF SYMBOLS 10 Stator blade, 11 Compressed air guide apparatus, 12 Leading edge, 13 Trailing edge, 14 Wing belly, 15 Wing spine, 16 Housing, 17 Supply hole, 18 hole, 19 Outlet, 20 Piping

Claims (5)

エンジンと排気駆動過給機とインタクーラとを備え、排気駆動過給機がエンジンから出る排気ガス流を膨張するためのタービンと、エンジンに供給すべき燃焼空気流を圧縮するための圧縮機とを有し、インタクーラが圧縮機とエンジンとの間に挿入接続され、圧縮機が動翼付き圧縮機ロータと、該ロータの下流に配置された静翼（１０）付き圧縮空気案内装置（１１）とを有する内燃機関において、圧縮空気案内装置（１１）の少なくとも幾つかの静翼（１０）に孔（１７、１８）が設けられ、インタクーラの下流で分岐された冷却済み過給空気が、前記孔（１７、１８）を経て、圧縮空気案内装置（１１）の領域において未冷却空気流に帰還ないし導入されることを特徴とする内燃機関。   An engine, an exhaust drive supercharger, and an intercooler, and the exhaust drive supercharger includes a turbine for expanding an exhaust gas flow exiting the engine, and a compressor for compressing a combustion air flow to be supplied to the engine An intercooler is inserted and connected between the compressor and the engine, the compressor is a compressor rotor with moving blades, and a compressed air guide device (11) with a stationary blade (10) arranged downstream of the rotor. In which at least some of the stationary blades (10) of the compressed air guide device (11) are provided with holes (17, 18), and the cooled supercharged air branched downstream of the intercooler An internal combustion engine which is fed back or introduced into the uncooled air flow in the region of the compressed air guide device (11) via (17, 18). 圧縮機がラジアル圧縮機として形成され、圧縮空気案内装置（１１）の静翼（１０）の前縁（１２）および後縁（１３）が圧縮機の軸方向に延び、この結果圧縮空気案内装置（１１）が半径ないし接線方向に貫流されることを特徴とする請求項１記載の内燃機関。   The compressor is formed as a radial compressor, and the leading edge (12) and the trailing edge (13) of the stationary blade (10) of the compressed air guide device (11) extend in the axial direction of the compressor, so that the compressed air guide device The internal combustion engine according to claim 1, wherein (11) flows in a radial or tangential direction. 圧縮空気案内装置（１１）の少なくとも幾つかの静翼（１０）に、各々圧縮機の軸方向に延びる中央供給孔（１７）が設けられ、各供給孔（１７）から複数の孔（１８）が分岐し、該分岐孔（１８）の出口（１９）が、各静翼（１０）の前縁（１２）の下流に隣接して位置することを特徴とする請求項１又は２記載の内燃機関。   At least some stationary blades (10) of the compressed air guide device (11) are each provided with a central supply hole (17) extending in the axial direction of the compressor, and a plurality of holes (18) from each supply hole (17). The internal combustion engine according to claim 1 or 2, characterized in that the branch is located and the outlet (19) of the branch hole (18) is located adjacent to the downstream of the leading edge (12) of each stationary blade (10). organ. 出口（１９）が、圧縮空気案内装置（１１）の各静翼（１０）の翼の腹（１４）および／又は翼の背（１５）の箇所に位置することを特徴とする請求項３記載の内燃機関。   4. The outlet (19) is located at the position of the wing antinode (14) and / or wing back (15) of each stationary blade (10) of the compressed air guiding device (11). Internal combustion engine. 供給孔（１７）が、圧縮空気案内装置（１１）の静翼（１０）の横断面形状が最も厚い箇所に設けられたことを特徴とする請求項３又は４記載の内燃機関。   The internal combustion engine according to claim 3 or 4, characterized in that the supply hole (17) is provided at a location where the transverse cross-sectional shape of the stationary blade (10) of the compressed air guide device (11) is the thickest.
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JPH07208189A (en) * 1994-01-10 1995-08-08 Hino Motors Ltd Supercharger cooling device of engine
DE19734848A1 (en) * 1997-08-12 1999-02-18 Dieter Dr Ing Stockburger Intermediate direct cooling of gas turbine air stream
JP2003515690A (en) * 1999-10-20 2003-05-07 アーベーベー ターボ システムズ アクチエンゲゼルシャフト Method and apparatus for cooling flow in a radial gap formed between a rotor and a stator of a turbine machine

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FR1605460A (en) * 1966-11-24 1976-05-14
EP0961034B1 (en) * 1998-05-25 2003-09-03 ABB Turbo Systems AG Radial compressor
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JPH07208189A (en) * 1994-01-10 1995-08-08 Hino Motors Ltd Supercharger cooling device of engine
DE19734848A1 (en) * 1997-08-12 1999-02-18 Dieter Dr Ing Stockburger Intermediate direct cooling of gas turbine air stream
JP2003515690A (en) * 1999-10-20 2003-05-07 アーベーベー ターボ システムズ アクチエンゲゼルシャフト Method and apparatus for cooling flow in a radial gap formed between a rotor and a stator of a turbine machine

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