WO2013104091A1 - Volute segmentée comprenant des aubes distributrices - Google Patents

Volute segmentée comprenant des aubes distributrices Download PDF

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Publication number
WO2013104091A1
WO2013104091A1 PCT/CN2012/000429 CN2012000429W WO2013104091A1 WO 2013104091 A1 WO2013104091 A1 WO 2013104091A1 CN 2012000429 W CN2012000429 W CN 2012000429W WO 2013104091 A1 WO2013104091 A1 WO 2013104091A1
Authority
WO
WIPO (PCT)
Prior art keywords
volute
intake
flow passage
passage
air
Prior art date
Application number
PCT/CN2012/000429
Other languages
English (en)
Chinese (zh)
Inventor
王航
王艳霞
袁道军
朱智富
李永泰
宋丽华
Original Assignee
Wang Hang
Wang Yanxia
Yuan Daojun
Zhu Zhifu
Li Yongtai
Song Lihua
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 Wang Hang, Wang Yanxia, Yuan Daojun, Zhu Zhifu, Li Yongtai, Song Lihua filed Critical Wang Hang
Publication of WO2013104091A1 publication Critical patent/WO2013104091A1/fr
Priority to US14/328,676 priority Critical patent/US20140321992A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00Regulating or controlling by varying flow
    • F01D17/10Final actuators
    • F01D17/12Final actuators arranged in stator parts
    • F01D17/14Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12Control of the pumps
    • F02B37/24Control of the pumps by using pumps or turbines with adjustable guide vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00Stators
    • F01D9/02Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026Scrolls for radial machines or engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F02B37/025Multiple scrolls or multiple gas passages guiding the gas to the pump drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12Control of the pumps
    • F02B37/22Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00Application
    • F05D2220/40Application in turbochargers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Definitions

  • the present invention relates to a segmented volute, and more particularly to a segmented volute with guide vanes that can work independently and work together to meet the performance requirements of various operating conditions of the engine, and belongs to the field of internal combustion engines. Background technique:
  • variable-section turbocharger can effectively control the exhaust pressure of the engine.
  • the supercharger and the engine achieve good performance matching under various working conditions and become the focus of research and development.
  • the low-speed torque of the engine using the variable-section supercharger is greatly improved.
  • the problem is that the engine's intake and exhaust negative pressure difference is very high, and the pumping loss is too high, resulting in low-speed engine operating conditions.
  • the fuel consumption is high.
  • Patent CN101694166A discloses a two-layer flow passage variable-section turbine control device, which comprises a turbine casing, and two inner and outer intake runners are arranged in the turbine casing, and the valve adjusts the opening of the valve through a valve control mechanism under high operating conditions in the engine.
  • the degree of intake air entering the outer flow passage of the volute intake air is adjusted to realize the function of variable cross section.
  • the structure has a limited increase in the boost ratio under high-speed engine conditions.
  • the problem to be solved by the present invention is to provide a method for effectively solving the hysteresis of the supercharger when the engine is in a low speed condition, and to improve the supercharging ratio when the engine is in a high speed condition, in order to solve the limitation of the variable section supercharger.
  • the present invention adopts the following technical solutions:
  • a segmented volute with guide vanes including a turbine volute;
  • the turbine volute is provided with a volute inlet flow passage and a volute expansion passage, and the turbine volute is respectively provided with a volute air inlet communicating with the volute intake flow passage and communicating with the volute diffusion passage a volute air outlet;
  • a left side pneumatic partition and a right side pneumatic partition are arranged in the volute inlet flow passage;
  • the ⁇ the side pneumatic baffle and the right pneumatic baffle partition the volute inlet flow passage into the volute left intake air flow passage, the volute intake air flow passage and the volute right intake air flow passage;
  • An air intake adjustment control device is respectively disposed at a position of the outer ventilating outer flow passage on the left side of the volute and the outer air intake outer flow passage on the right side of the volute near the vent inlet of the volute.
  • the air intake adjusting control device includes an air intake adjusting valve respectively installed at an air inlet of the left outer air intake passage of the volute and the outer air flow passage of the right side of the volute,
  • the intake adjustment valve drive is connected with an intake adjustment control actuator;
  • the two intake regulating valves are closed at the same time, that is, the left outer air intake passage of the volute and the outer helium outer flow passage of the volute are simultaneously closed; the volute helium inner flow passage is separately Working status
  • the intake adjustment valve installed at the intake port of the intake air passage on the left side of the volute is closed, and the intake air flow passage on the left side of the volute is closed, and the intake air flow on the right side of the volute
  • the inner passage of the passage and the volute intake air are in working condition
  • the two intake regulating valves are simultaneously opened, and the inner flow passage of the volute casing, the outer flow passage of the left side of the volute and the outer flow passage of the right side of the volute are simultaneously in working state.
  • the air inlet of the inner flow passage of the volute air inlet communicates with the air inlet of the volute, and the air inlet of the left outer air inlet of the volute and the air inlet of the outer air flow of the right side of the volute respectively
  • the air inlets of the inner air passage of the shell inlet are connected.
  • the left outer air intake flow passage of the volute and the right outer air intake outer flow passage of the volute are respectively located on both sides of the inner flow passage of the volute casing and are arranged side by side in parallel.
  • the left outer air intake outer flow passage of the volute and the right outer air intake outer flow passage of the volute are respectively located at two sides of the inner flow passage of the volute casing, and the cross section of the left outer air intake passage of the volute is curved, and the outer portion thereof The end extends to the outside of the inner flow passage of the volute intake.
  • the cross-sectional area of the outer air intake passage on the left side of the volute is larger than the cross-sectional area of the outer air flow passage on the right side of the volute.
  • the sum of the cross-sectional areas of the left outer air intake passage and the right outer air passage of the right side of the volute is a volute
  • the cross-sectional area of the inner flow passage of the intake air is 0.3-1.1 times.
  • a vane-free nozzle is respectively disposed at a position of the outer ventilating outer flow passage on the left side of the volute, the outer side outer flow passage of the volute casing, and the inner flow passage of the volute casing near the volute diffusing passage.
  • a plurality of airfoil-type pneumatic guide vanes are uniformly arranged in a ring shape near the vaneless nozzle in the left outer air inlet passage of the volute.
  • one end of the guiding vane is integrally casted and connected with the inner wall of the outer side of the outer side of the volute, and the other end is integrally casted with the inner wall of the left side of the outer side of the outer side of the volute.
  • a left outer flow passage control chamber is provided between the left outer air intake outer flow passage of the volute and the air inlet of the left outer air intake passage of the volute; the outer right outer flow passage of the volute
  • a right outer flow channel control chamber is arranged between the air inlets of the outer air intake passage on the right side of the volute.
  • the intake air regulating valve installed at the intake port of the intake air flow passage on the left side of the volute is located in the left outer flow passage control room;
  • the intake air regulating valve installed at the intake port of the intake air flow passage on the right side of the volute is located in the right outer flow passage control chamber.
  • Step-by-step improvement The upper outer runner control chamber and the right outer runner control chamber are respectively provided with upper outer runner end caps to achieve sealing of the intake air flow and limit of the intake air regulating valve.
  • the inner flow passage of the volute casing is a normally open intake flow passage
  • the outer air inlet outer passage of the volute and the right outer air passage of the volute are open under the control of the intake regulation control actuator or Closed
  • the intake air regulating wide door is driven by the air intake adjusting control actuator, and the outer air inlet outer flow passage of the volute and the outer air inlet outer flow passage of the volute are simultaneously closed, at this time, All the exhaust gas discharged from the engine only flows through the inner flow passage of the volute casing.
  • the intake regulating valve of the outer air intake passage of the right side of the volute When the engine is in the medium speed condition range, the intake regulating valve of the outer air intake passage of the right side of the volute is fully opened by the air intake adjusting control actuator, thereby opening the outer air inlet passage of the right side of the volute.
  • the inner flow passage of the volute inlet and the outer flow passage of the right side of the volute work together, and the cross-sectional area of the intake passage of the volute becomes larger, which can effectively satisfy the intake air amount entering the turbine impeller at the medium rotation speed of the engine, and improve the engine discharge.
  • the utilization of exhaust gas energy meets the supercharging requirements of the engine at medium speed.
  • the intake regulating valve When the engine is in the high-speed working condition, the intake regulating valve is fully opened under the driving of the intake adjusting control actuator, thereby opening the left outer air inlet and the outer air inlet of the volute. At this time, the inner flow passage of the volute inlet, the outer flow passage of the left side of the volute and the outer flow passage of the right side of the volute are simultaneously in working state.
  • the high-speed exhaust gas discharged from the engine enters the inner flow passage of the volute casing, the outer flow passage of the left side of the volute and the outer flow passage of the right side of the volute.
  • the cross-sectional area of the snail inlet flow passage increases, and the volute Guide vanes are provided at the vaneless nozzle of the left intake air flow passage, which can effectively guide the intake air flow into the turbine impeller at a suitable air flow angle, thereby improving the turbine intake efficiency and thereby increasing the boost ratio.
  • the structure of the turbine volute of the invention is basically the same as that of the ordinary supercharger volute structure, the structure is simple, the inheritance is good, the cost is low, and the engineering is easy and fast, the structure of the air intake adjusting device in the structure is simple, and the control method is easy to realize. , high reliability.
  • the invention will be further described below in conjunction with the accompanying drawings.
  • FIG. 1 is a schematic cross-sectional view showing a segmented volute with a guide vane in Embodiment 1 of the present invention
  • Figure 2 is a schematic cross-sectional view of a 0-180 degree flow path of a segmented volute with a guide vane according to Embodiment 1 of the present invention
  • Figure 3 is a flow guide vane with a guide vane according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic cross-sectional structural view of a 0-180 degree flow path of a segmented volute with a guide vane according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic view of the present invention.
  • FIG. 6 is a sectional structural view of the segmented volute with guide vanes in the low speed condition of the engine;
  • FIG. 6 is a sectional volute with guide vanes in the engine of the second embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional structural view of a segmented volute with a guide vane in a high speed condition of the engine according to Embodiment 2 of the present invention;
  • Embodiment 1 as shown in FIG. 1 and FIG. 2, a segmented volute with a guide vane, comprising: a turbine volute 1 having a volute inlet flow passage and a volute inside the turbine volute 1 a diffuser passage 4, wherein the turbine volute 1 is respectively provided with a volute air inlet 2 communicating with the volute inlet flow passage and a volute air outlet 3 communicating with the volute diffusing passage 4;
  • the volute inlet flow passage is provided with a left side pneumatic partition 5 and a right side pneumatic partition 6;
  • the left side pneumatic partition 5 and the right side pneumatic partition 6 divide the volute inlet flow passage into a volute left intake air flow passage 7, a volute intake inner flow passage 8 and a volute right intake air flow passage 9;
  • An air intake adjustment control device is respectively disposed at a position near the left outer air intake passage 7 of the volute and the outer air intake outer flow passage 9 of the volute near the volute intake port 2.
  • the air intake adjusting control device includes an air intake adjusting valve 10 installed at an air inlet of the left outer air intake runner 7 and the right outer air intake runner 9 of the volute, and the air intake adjusting valve 10 is driven. Connected with an air intake control actuator;
  • the two intake regulating valves 10 are simultaneously closed, that is, the left outer air intake passage 7 of the volute and the outer right outer air passage 9 of the volute are simultaneously closed; the volute intake air flow Road 8 is working alone;
  • the intake air regulating valve 10 installed at the intake port of the intake air flow passage 7 on the left side of the volute is closed, and the air intake outer flow passage 7 on the left side of the volute is closed, and the right side of the volute
  • the intake outer flow passage 9 and the volute intake inner flow passage 8 are in an operating state
  • the two intake air conditioning wide doors 10 are simultaneously opened, the volute air intake inner flow passage 8, the volute left air intake outer flow passage 7 and the volute right outer air intake outer flow passage 9 simultaneously Is working.
  • the left pneumatic diaphragm 5 and the right pneumatic diaphragm 6 are integrally coupled with the turbine volute 1; the volute air inlet 2 is a single air inlet, and the volute intake inner flow passage 8 is advanced.
  • the air port is in communication with the volute air inlet 2, and the air inlet of the left outer air intake passage 7 of the volute and the outer air inlet outer flow passage 9 of the volute is respectively connected with the inner flow passage 8 of the volute air intake The air inlets are connected.
  • the cross-sectional area of the left intake air flow passage 7 on the left side of the volute is larger than the cross-sectional area of the outer air flow passage 9 on the right side of the volute.
  • the sum of the cross-sectional areas of the left outer air intake runner 7 and the right outer air intake runner 9 of the volute is the inside of the volute intake air.
  • the cross-sectional area of the flow path 8 is 0.3-1.1 times.
  • the left outer air inlet passage 7 and the right outer air passage 9 of the volute are respectively located at two sides of the inner flow passage 8 of the volute, and the cross section of the outer air passage 7 on the left side of the volute is an arc.
  • the outer end extends to the outer side of the inner flow passage 8 of the volute casing.
  • a vaneless nozzle 15 is disposed at a position of the outer ventilating outer flow passage 7 on the left side of the volute, the outer side outer flow passage 9 on the right side of the volute, and the inner flow passage 8 of the volute casing near the volute diffusing passage 4, respectively.
  • the airflow flowing through the outer airflow passage on the left side of the volute enters the turbine impeller at a suitable airflow angle to improve the intake efficiency.
  • a plurality of airfoil-type air guide vanes 16 are uniformly disposed annularly in the outer air flow passage 7 on the left side of the volute near the vaneless nozzle 15 .
  • One end of the guide vane) 6 is integrally casted with the inner wall 17 of the left outer air inlet of the volute, and the other end is integrally formed with the left side pneumatic partition 5 on the inner side of the outer side of the outer flow passage 7 on the left side of the volute. Cast connection.
  • a left outer flow passage control chamber 11 is disposed between the left outer air intake outer flow passage 7 of the volute and the air inlet of the left outer air intake outer flow passage 7 of the volute; the outer right outer air passage 9 and the volute of the volute
  • a right outer flow passage control chamber 12 is provided between the intake ports of the intake air outer passage 9 on the right side of the casing.
  • the intake air regulating valves 10 are installed in the left outer flow path control chamber 11 and the right outer flow path control chamber 12, respectively.
  • the intake regulating valve 10 is respectively provided with an intake adjusting wide door fitting surface 13 at an intake port of the intake outer flow passage 7 on the left side of the volute and an intake U of the right outer intake passage 9 of the volute, thereby realizing The intake air regulates the sealing of the wide door.
  • the left outer flow passage control chamber 11 and the right outer flow passage control chamber 12 are respectively provided with an outer flow passage upper end cover 14 to achieve sealing of the intake air flow and restriction of the intake air regulating valve.
  • Embodiment 2 As shown in Fig. 4, in the above-described Embodiment 1, the left outer air intake passage 7 and the right outer air flow passage 9 of the volute may be arranged side by side in parallel.
  • the intake adjusting valve 10 is simultaneously closed by the intake adjusting control actuator, that is, the left outer side of the volute and the outer side of the volute
  • the intake air flow passage 9 is simultaneously closed, and at this time, all the exhaust gas discharged from the engine flows only through the volute intake inner flow passage 8, Since the cross-sectional area of the inner flow passage 8 of the volute casing is relatively small, the intake flow rate of the turbine impeller can be effectively increased, the available energy in the exhaust gas can be fully utilized, the turbine output work at the low speed condition of the engine can be increased, and the supercharging pressure can be increased. Meets the need for higher boost pressure at low engine speeds, improves engine low speed performance and reduces emissions, while increasing engine acceleration responsiveness and reducing the effects of boost hysteresis.
  • the intake regulating valve 10 of the left outer air inlet passage 7 of the volute is in the off state, and the outer air inlet runner 7 on the left side of the volute does not work.
  • the intake regulating valve 10 of the right outer side air flow passage 9 of the volute is opened under the driving of the air intake adjusting control actuator, thereby opening the outer air inlet outer flow passage 9 of the volute, and at this time, the volute enters
  • the gas inner flow passage 8 and the outer air intake outer flow passage 9 of the volute casing work together, and the cross-sectional area of the volute intake air passage passage becomes large, which can effectively satisfy the intake air flow rate entering the turbine impeller at a medium engine speed, and improve the utilization of the exhaust gas energy of the engine. Rate, to meet the supercharging requirements of the engine at medium speed.
  • the two intake air regulating valves 10 are simultaneously opened under the action of the intake air conditioning control actuator, thereby the outer air intake passage 7 on the left side of the volute.
  • the outer flow passage 9 on the right side of the volute is opened.
  • the inner flow passage 8 of the volute intake, the outer flow passage 7 of the left side of the volute, and the outer flow passage 9 of the right side of the volute are simultaneously in an operating state.
  • the high-speed exhaust gas discharged from the engine enters the volute intake inner flow passage 8, the volute left outer intake outer flow passage 7 and the volute right outer intake outer flow passage 9, respectively, and the outer flow passage 7 on the left side of the volute
  • the vaneless nozzle 16 is provided with a guide vane 16 which can effectively guide the intake air flow into the turbine impeller at a suitable air flow angle, thereby improving the turbine intake efficiency.
  • the inner flow passage of the volute casing is a constant intake air passage
  • the outer air inlet outer passage of the volute and the right outer air passage of the spiral outer casing are under the control of the air intake adjustment control actuator. Open or closed state.
  • the volute structure design is based on the improvement of the traditional volute, the structure is simple, the inheritance is good, and the product is easy to be engineered.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)

Abstract

L'invention concerne une volute segmentée comprenant des aubes distributrices comprenant une volute de turbine (1) ; un trajet d'écoulement d'admission de volute et un trajet de diffusion de volute (4) disposés à l'intérieur de la volute de turbine (1) ; et un orifice d'admission de volute (2) en communication avec le trajet d'écoulement d'admission de volute et une évacuation d'air de volute (3) en communication avec le trajet de diffusion de volute (4) respectivement disposés sur la volute de turbine (1). Un déflecteur pneumatique gauche (5) et un déflecteur pneumatique droit (6) sont disposés dans le trajet d'écoulement d'admission de volute, le déflecteur pneumatique gauche (5) et le déflecteur pneumatique droit (6) séparant le trajet d'écoulement d'admission de volute en un trajet d'écoulement externe d'admission gauche de volute (7), un trajet d'écoulement interne d'admission de volute (8) et un trajet d'écoulement externe d'admission droit de volute (9). Un dispositif de réglage et de commande d'admission est respectivement disposé au niveau de la position dans laquelle le trajet d'écoulement externe d'admission gauche de volute (7) et le trajet d'écoulement externe d'admission droit de volute (9) sont adjacents à l'orifice d'admission de volute (2). La volute segmentée comprenant des aubes distributrices améliore le rapport de suralimentation lorsque le moteur fonctionne à haute vitesse et satisfait les exigences de suralimentation dans toute la plage de fonctionnement du moteur.
PCT/CN2012/000429 2012-01-11 2012-03-31 Volute segmentée comprenant des aubes distributrices WO2013104091A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/328,676 US20140321992A1 (en) 2012-01-11 2014-07-10 Volute

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210006737.5 2012-01-11
CN201210006737.5A CN102562186B (zh) 2012-01-11 2012-01-11 带导流叶片的分段式蜗壳

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/328,676 Continuation-In-Part US20140321992A1 (en) 2012-01-11 2014-07-10 Volute

Publications (1)

Publication Number Publication Date
WO2013104091A1 true WO2013104091A1 (fr) 2013-07-18

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US (1) US20140321992A1 (fr)
CN (1) CN102562186B (fr)
WO (1) WO2013104091A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN113532868A (zh) * 2021-05-27 2021-10-22 中国航发南方工业有限公司 涡轴型发动机试车台进气加温系统

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US5025629A (en) * 1989-03-20 1991-06-25 Woollenweber William E High pressure ratio turbocharger
DE4307098A1 (de) * 1993-03-06 1994-09-08 Daimler Benz Ag Abgasturbolader
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CN202417626U (zh) * 2012-01-11 2012-09-05 康跃科技股份有限公司 一种带导流叶片的分段式蜗壳

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US7428814B2 (en) * 2006-03-08 2008-09-30 Melvin Hess Pedersen Turbine assemblies and related systems for use with turbochargers
CN101598038B (zh) * 2009-07-03 2012-05-09 康跃科技股份有限公司 涡轮增压器双层流道变截面涡轮机
CN101694166B (zh) * 2009-10-23 2012-04-25 康跃科技股份有限公司 双层流道变截面涡轮机控制装置
CN101936214B (zh) * 2010-08-03 2012-08-08 康跃科技股份有限公司 脉冲可变流道涡轮机装置
CN101949326A (zh) * 2010-09-14 2011-01-19 康跃科技股份有限公司 可变截面双流道进气涡轮

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0230927A (ja) * 1988-07-20 1990-02-01 Hitachi Ltd 3スクロールタービンケース
US5025629A (en) * 1989-03-20 1991-06-25 Woollenweber William E High pressure ratio turbocharger
DE4307098A1 (de) * 1993-03-06 1994-09-08 Daimler Benz Ag Abgasturbolader
DE10230934A1 (de) * 2002-07-09 2004-01-22 Bayerische Motoren Werke Ag Schaltbarer, zweistufiger Abgas-Turbolader für eine Brennkraftmaschine
CN202417626U (zh) * 2012-01-11 2012-09-05 康跃科技股份有限公司 一种带导流叶片的分段式蜗壳

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CN102562186B (zh) 2015-03-04
US20140321992A1 (en) 2014-10-30
CN102562186A (zh) 2012-07-11

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