JP2005351273A - Supercharger and its driving method - Google Patents

Supercharger and its driving method Download PDF

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Publication number
JP2005351273A
JP2005351273A JP2005166604A JP2005166604A JP2005351273A JP 2005351273 A JP2005351273 A JP 2005351273A JP 2005166604 A JP2005166604 A JP 2005166604A JP 2005166604 A JP2005166604 A JP 2005166604A JP 2005351273 A JP2005351273 A JP 2005351273A
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fluid
compressor
mass flow
air mass
supercharger
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JP2005166604A
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Andre Voges
フォーゲス アンドレ
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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Publication of JP2005351273A publication Critical patent/JP2005351273A/en
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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
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • 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
    • 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
    • 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
    • F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
    • F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
    • F02C7/1435—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages by water injection
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • F02M25/028—Adding water into the charge intakes
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Supercharger (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prolong service life of an impeller of a compressor by keeping the temperature down at the exit portion of the impeller of the compressor in relation to a supercharger which supplies the second air mass flow (10) to the compressor (3)of the supercharger by converting the energy contained in the first air mass flow into mechanical energy to drive the compressor (3) of the supercharger through a turbine of the supercharger. <P>SOLUTION: Before the second air mass flow (10) comes in the compressor (3) of the supercharger, a fluid (15) is filled into the second air mass flow (10) and the filled fluid (15) is evaporated inside the compressor (3) to cool the compressor. Water is preferably recommended as the fluid (15). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は請求項１の前文に記載の過給機、特に排気駆動式過給機の運転方法に関する。また本発明は請求項９の前文に記載の過給機、特に排気駆動式過給機にも関する。   The invention relates to a method for operating a turbocharger, in particular an exhaust-driven supercharger, as described in the preamble of claim 1. The invention also relates to a turbocharger, in particular an exhaust drive supercharger, as described in the preamble of claim 9.

過給機、特に排気駆動式過給機は、内燃機関の出力を高めるために利用される。例えば特許文献１に、軸を介して互いに結合された圧縮機とタービンとを備えた過給機が開示されている。その場合、タービンを介して空気質量流からエネルギが取り出され、そのエネルギは過給機の圧縮機を駆動するために利用される機械エネルギに変換される。従来の圧縮機は圧縮機インペラを有し、タービンはタービンランナを有している。   A supercharger, in particular an exhaust drive supercharger, is used to increase the output of an internal combustion engine. For example, Patent Document 1 discloses a supercharger including a compressor and a turbine that are coupled to each other via a shaft. In that case, energy is extracted from the air mass flow through the turbine, and the energy is converted to mechanical energy utilized to drive the turbocharger compressor. A conventional compressor has a compressor impeller, and a turbine has a turbine runner.

最近の過給機は圧縮機の内部で空気質量流を、圧縮機の出口、特に圧縮機インペラの出口で数１００Kに達するほどの高圧に圧縮する。圧縮機インペラは特にアルミニウム合金で形成されている。その場合、数１００Kでは、圧縮機インペラのアルミニウム合金が特に外径部において疲れ限度が損なわれる（熱的老化）という問題が生ずる。これは圧縮機インペラを損傷させ、ために圧縮機インペラの寿命を短縮させてしまう。従って、圧縮機インペラの出口部における温度を低く抑えることが望まれる。
独国特許出願公開第１９９２８９２５号明細書 Modern turbochargers compress the air mass flow inside the compressor to high pressures that reach several hundred K at the compressor outlet, in particular the compressor impeller outlet. The compressor impeller is particularly made of an aluminum alloy. In that case, at several hundred K, the problem arises that the fatigue limit of the aluminum alloy of the compressor impeller is impaired particularly in the outer diameter portion (thermal aging). This damages the compressor impeller and thus shortens the life of the compressor impeller. Therefore, it is desirable to keep the temperature at the outlet of the compressor impeller low.
German Patent Application Publication No. 199228925

本発明の課題は、上述の問題を解消した新たな過給機特に排気駆動式過給機およびその運転方法を提供することにある。   An object of the present invention is to provide a new supercharger that solves the above-described problems, in particular, an exhaust-drive supercharger and an operation method thereof.

この課題は請求項１に記載の過給機の運転方法によって解決される。本発明に基づき、圧縮機質量流、特に生空気質量流（以下、第２空気質量流とも呼ぶ）が過給機の圧縮機に流入する前に、第２空気質量流に流体を注入し、注入した流体を圧縮機内で蒸発させ、かくして、圧縮機インペラの冷却を行う。またこの処置は、油の付着を防止せねばならない場所である再分配器にも作用する。更にＮＯx発生に関して良好な影響を与える。 This problem is solved by the operation method of the supercharger according to claim 1. In accordance with the present invention, a compressor mass flow, in particular a raw air mass flow (hereinafter also referred to as a second air mass flow) is injected into the second air mass flow before entering the compressor of the supercharger, The injected fluid is evaporated in the compressor, thus cooling the compressor impeller. This procedure also works for redistributors, where oil deposits must be prevented. Furthermore, it has a positive effect on the generation of NO x .

本発明は、過給機の圧縮機で圧縮すべき第２空気質量流に、圧縮機への流入前に流体を注入することを提案する。該流体は圧縮機内で蒸発し、圧縮機、即ち圧縮機インペラの出口に到達する前に完全に蒸発する（部分的蒸発でも効果がある）。この結果、圧縮機又は圧縮機インペラの冷却が生じる。圧縮機インペラの許容温度超過による圧縮機インペラの強度低下は、かくして簡単な方法で防止できる。   The present invention proposes injecting a fluid into the second air mass flow to be compressed by the compressor of the supercharger before entering the compressor. The fluid evaporates in the compressor and completely evaporates before reaching the compressor, i.e. the compressor impeller outlet (partial evaporation also works). This results in cooling of the compressor or compressor impeller. A reduction in the strength of the compressor impeller due to exceeding the allowable temperature of the compressor impeller can thus be prevented by a simple method.

本発明の有利な実施態様では、流体を第２空気質量流に、該質量流と流体との合計質量流量における流体の比率が約１％であるように注入する。   In an advantageous embodiment of the invention, the fluid is injected into the second air mass flow such that the ratio of the fluid at the total mass flow of the mass flow and the fluid is about 1%.

本発明の他の実施態様では、流体をその第２空気質量流への注入前に、注入の周辺条件下で流体の温度がその沸点より２０〜１００Ｋ高くなるように圧縮し、加熱する。   In another embodiment of the present invention, the fluid is compressed and heated prior to its injection into the second air mass stream such that the temperature of the fluid is 20-100 K above its boiling point under the ambient conditions of the injection.

本発明に基づく過給機は請求項９に記載している。   A supercharger according to the invention is described in claim 9.

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にする。   Advantageous embodiments of the invention emerge from the dependent claims and the following description.

以下図を参照して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。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.

図２を参照して本発明の実施例を説明する前にまず、排気駆動式過給機を例に、従来公知の機能について説明する。   Prior to the description of the embodiment of the present invention with reference to FIG. 2, a conventionally known function will be described first by taking an exhaust driving supercharger as an example.

図１は、内燃機関のシリンダ２に接続された排気駆動式過給機１を概略的に示す。該過給機１は、圧縮機インペラ４付き圧縮機３とタービンランナ６付きタービン５を備える。   FIG. 1 schematically shows an exhaust-driven supercharger 1 connected to a cylinder 2 of an internal combustion engine. The supercharger 1 includes a compressor 3 with a compressor impeller 4 and a turbine 5 with a turbine runner 6.

内燃機関のシリンダ２に付設された排気弁７を介して、第１空気質量流、即ち排気ガス流が、矢印８の方向にタービン５のタービンランナ６に導入される。第１空気質量流のエネルギはタービンランナ６により機械エネルギに変換され、過給機１の圧縮機３の圧縮機インペラ４を駆動するために利用される。タービン５の範囲で膨張した第１空気質量流、即ち排気ガス流は、矢印９の方向に過給機１から流出する。   A first air mass flow, that is, an exhaust gas flow, is introduced into the turbine runner 6 of the turbine 5 in the direction of arrow 8 via an exhaust valve 7 attached to the cylinder 2 of the internal combustion engine. The energy of the first air mass flow is converted into mechanical energy by the turbine runner 6 and is used to drive the compressor impeller 4 of the compressor 3 of the supercharger 1. The first air mass flow expanded in the range of the turbine 5, that is, the exhaust gas flow, flows out of the supercharger 1 in the direction of the arrow 9.

図１から解る如く、過給機１の圧縮機３によって第２空気質量流、即ち生空気質量流が矢印１０の方向に吸い込まれ、圧縮され、圧縮された第２空気質量流が、吸気弁１２を経て矢印１１の方向に内燃機関、即ちシリンダ２に供給される。この排気駆動式過給機は、図１に示す如く、更に過給空気冷却器１３と過給圧力調整装置１４を有する。   As can be seen from FIG. 1, the compressor 3 of the supercharger 1 sucks and compresses the second air mass flow, that is, the raw air mass flow, in the direction of the arrow 10, and the compressed second air mass flow becomes the intake valve. 12 is supplied to the internal combustion engine, that is, the cylinder 2 in the direction of the arrow 11. As shown in FIG. 1, the exhaust driving supercharger further includes a supercharged air cooler 13 and a supercharging pressure adjusting device 14.

図１に示す排気駆動式過給機１の圧縮機３の圧縮機インペラ４は、特にアルミニウム合金からなる。排気駆動式過給機の圧縮機３の内部における第２空気質量流の圧縮時、圧縮機インペラ４の出口に数１００ケルビン温度が生ずる。このため圧縮機インペラ４の許容温度の超過が起り、圧縮機インペラ４の強度が損なわれる。   The compressor impeller 4 of the compressor 3 of the exhaust-drive supercharger 1 shown in FIG. 1 is particularly made of an aluminum alloy. When the second air mass flow is compressed inside the compressor 3 of the exhaust-driven supercharger, a temperature of several hundred Kelvin is generated at the outlet of the compressor impeller 4. For this reason, the allowable temperature of the compressor impeller 4 is exceeded, and the strength of the compressor impeller 4 is impaired.

本発明は、第２空気質量流１０が過給機の圧縮機３に流入する前に、この第２空気質量流１０に流体１５を注入することを提案する（図２）。該流体１５を圧縮機３に前置接続された適当な装置１６を介して第２空気質量流１０に注入する。注入された流体１５は圧縮機３内で蒸発し、その結果圧縮機、即ちそのインペラの冷却が起る。   The present invention proposes to inject a fluid 15 into the second air mass flow 10 before it enters the compressor 3 of the supercharger (FIG. 2). The fluid 15 is injected into the second air mass flow 10 via a suitable device 16 connected in advance to the compressor 3. The injected fluid 15 evaporates in the compressor 3, resulting in cooling of the compressor, ie its impeller.

第２空気質量流１０に注入された流体１５は圧縮機内で特に完全に蒸発する。その結果注入された流体の蒸発は圧縮機インペラ４の出口で完了する。これを可能にすべく、装置１６を介して第２空気質量流１０に流体１５を注入する際、流体１５をできるだけ細かく噴霧する。これは、注入すべき流体１５を注入前にまずポンプ１７で圧縮し、続いて熱交換器１８で所定温度に加熱することで達成される。流体１５は、第２空気質量流１０への注入前に熱交換器１８で、流体１５が注入時、即ち装置１６の範囲で注入の周辺条件下でその沸点を２０〜１００Ｋ超える温度となるように加熱される。この温度で流体１５を第２空気質量流１０に注入した際、所謂フラッシュ効果により流体滴がはじけて割れる。   The fluid 15 injected into the second air mass stream 10 evaporates particularly completely in the compressor. As a result, the evaporation of the injected fluid is completed at the outlet of the compressor impeller 4. To allow this, when injecting the fluid 15 into the second air mass flow 10 via the device 16, the fluid 15 is sprayed as finely as possible. This is accomplished by first compressing the fluid 15 to be injected with a pump 17 and then heating it to a predetermined temperature with a heat exchanger 18 before injection. Fluid 15 is heat exchanger 18 prior to injection into second air mass flow 10 so that fluid 15 will have a temperature that exceeds its boiling point by 20-100 K at the time of injection, i.e., in the range of device 16 under ambient conditions of injection. To be heated. When the fluid 15 is injected into the second air mass flow 10 at this temperature, the fluid droplets pop off and break due to the so-called flash effect.

特に流体を第２空気質量流１０に、流体１５と第２空気質量流１０との合計質量流量における流体１５の比率が０．１〜５％、好適に０．５〜２％、特に有利には０．１％であるように注入する。流体として水を第２空気質量流１０に注入するとよい。   In particular, the ratio of the fluid 15 to the second air mass flow 10 and the fluid 15 in the total mass flow of the fluid 15 and the second air mass flow 10 is 0.1 to 5%, preferably 0.5 to 2%, particularly advantageously. Is injected to 0.1%. Water may be injected into the second air mass flow 10 as a fluid.

それに応じて本発明は、過給機の圧縮機で圧縮すべき第２空気質量流に、該質量流が圧縮機に流入する前に流体を注入することを提案する。流体は圧縮機の内部でインペラの出口に到達する前に完全に蒸発する。蒸発時、圧縮機インペラの冷却、即ち温度低下が生ずる。この結果、圧縮機インペラの許容温度の超過を防止し、強度低下を防止できる。   Accordingly, the present invention proposes injecting a fluid into the second air mass flow to be compressed by the compressor of the supercharger before the mass flow enters the compressor. The fluid evaporates completely before reaching the impeller outlet inside the compressor. During the evaporation, the compressor impeller is cooled, that is, the temperature is lowered. As a result, it is possible to prevent the allowable temperature of the compressor impeller from being exceeded and to prevent a decrease in strength.

従来の過給機の原理図。The principle figure of the conventional supercharger. 本発明に基づく過給機の運転方法を表す原理図。The principle figure showing the operating method of the supercharger based on this invention.

符号の説明Explanation of symbols

１ 排気駆動式過給機、２ シリンダ、３ 圧縮機、４ 圧縮機インペラ、５ タービン、６ タービンランナ、７ 排気弁、１２ 吸気弁、１３ 過給空気冷却器、１４ 過給圧力調整器、１５ 流体、１６ 装置、１７ ポンプ、１８ 熱交換器


DESCRIPTION OF SYMBOLS 1 Exhaust drive supercharger, 2 cylinder, 3 compressor, 4 compressor impeller, 5 turbine, 6 turbine runner, 7 exhaust valve, 12 intake valve, 13 supercharged air cooler, 14 supercharging pressure regulator, 15 Fluid, 16 devices, 17 pumps, 18 heat exchangers


Claims (10)

第１空気質量に含まれるエネルギを過給機のタービンにおいて過給機の圧縮機を駆動するための機械的エネルギに変換し、前記過給機の圧縮機で第２空気質量流特に生空気質量流を吸い込み圧縮する過給機特に排気駆動式過給機の運転方法において、第２空気質量流が過給機の圧縮機に流入する前に、この第２空気質量流に流体を注入し、該流体を圧縮機内で蒸発させ、もって圧縮機を冷却することを特徴とする過給機の運転方法。   The energy contained in the first air mass is converted into mechanical energy for driving the turbocharger compressor in the turbocharger turbine, and the second air mass flow, particularly the raw air mass, in the turbocharger compressor. In a method of operating a turbocharger, in particular an exhaust-driven supercharger, which sucks and compresses the flow, before the second air mass flow enters the compressor of the supercharger, fluid is injected into this second air mass flow, A method for operating a supercharger, characterized in that the fluid is evaporated in the compressor and the compressor is thereby cooled. 流体を、第２空気質量流への注入時に噴霧することを特徴とする請求項１記載の方法。   The method of claim 1, wherein the fluid is sprayed upon injection into the second air mass flow. 流体を、第２空気質量流への注入前に圧縮し加熱することを特徴とする請求項１又は２記載の方法。   3. A method according to claim 1 or 2, characterized in that the fluid is compressed and heated before being injected into the second air mass flow. 流体を、第２空気質量流への注入前に、流体の注入時の温度が流体の沸点より２０〜１００Ｋ高温であるように加熱することを特徴とする請求項１から３の１つに記載の方法。   4. The fluid according to claim 1, wherein the fluid is heated before injection into the second air mass flow so that the temperature at the time of injection of the fluid is 20-100 K higher than the boiling point of the fluid. the method of. 注入した流体を圧縮機内で完全に蒸発させることを特徴とする請求項１から４の１つに記載の方法。   5. A method according to claim 1, wherein the injected fluid is completely evaporated in the compressor. 流体として、水を第２空気質量流に注入することを特徴とする請求項１から５の１つに記載の方法。   6. The method according to claim 1, wherein water is injected into the second air mass flow as the fluid. 流体を第２空気質量流に、該質量流と流体との合計質量流量における流体の比率が０．１％〜５％であるように注入することを特徴とする請求項１から６の１つに記載の方法。   The fluid is injected into the second air mass flow such that the ratio of the fluid in the total mass flow of the mass flow and the fluid is between 0.1% and 5%. The method described in 1. 第２空気質量流と流体との合計質量流量における流体の比率が０．５％〜２％であることを特徴とする請求項７記載の方法。   8. The method of claim 7, wherein the ratio of fluid in the total mass flow of the second air mass flow and fluid is between 0.5% and 2%. 第１空気質量流に含まれるエネルギを過給機の圧縮機を駆動するための機械的エネルギに変換するタービンを備え、前記過給機の圧縮機に第２空気質量流が供給される過給機において、圧縮機に、第２空気質量流に流体を注入する装置が前置接続されたことを特徴とする過給機。   A turbocharger comprising a turbine for converting energy contained in the first air mass flow into mechanical energy for driving a compressor of the supercharger, wherein the second air mass flow is supplied to the compressor of the supercharger A turbocharger characterized in that a device for injecting fluid into a second air mass flow is connected in front of the compressor. 第２空気質量流に流体を注入するための装置に、一方では熱交換器が、他方では圧縮機が前置接続されたことを特徴とする請求項９記載の過給機。

10. A supercharger as claimed in claim 9, characterized in that a device for injecting fluid into the second air mass flow is pre-connected with a heat exchanger on the one hand and a compressor on the other.

JP2005166604A 2004-06-09 2005-06-07 Supercharger and its driving method Abandoned JP2005351273A (en)

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CN100538044C (en) 2009-09-09
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GB2415469B (en) 2009-01-28
GB2415469A (en) 2005-12-28

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