WO2012062428A1 - Boîtier de rotor - Google Patents

Boîtier de rotor Download PDF

Info

Publication number
WO2012062428A1
WO2012062428A1 PCT/EP2011/005537 EP2011005537W WO2012062428A1 WO 2012062428 A1 WO2012062428 A1 WO 2012062428A1 EP 2011005537 W EP2011005537 W EP 2011005537W WO 2012062428 A1 WO2012062428 A1 WO 2012062428A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
opening
housing
flow channel
valve flap
Prior art date
Application number
PCT/EP2011/005537
Other languages
German (de)
English (en)
Inventor
Stefan Köhler
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to CN2011800331634A priority Critical patent/CN102971505A/zh
Priority to JP2013537038A priority patent/JP2013541671A/ja
Priority to EP11779350A priority patent/EP2558697A1/fr
Publication of WO2012062428A1 publication Critical patent/WO2012062428A1/fr
Priority to US13/761,773 priority patent/US20130149114A1/en

Links

Classifications

    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • 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

Definitions

  • the invention relates to a housing for an impeller of a turbomachine according to the closer defined in the preamble of claim 1.
  • Turbo machines are known from the general state of the art.
  • the impellers of such turbomachines are typically exhaust gas turbines or compressor wheels. Both are combined
  • exhaust gas turbocharger used together for example in a so-called exhaust gas turbocharger.
  • the exhaust gas turbine alone may also be part of a so-called turbo-compound system.
  • Exhaust gas turbines are typically used in motor vehicles and there mostly in conjunction with an internal combustion engine.
  • Exhaust gas turbines use thermal energy and pressure energy in the exhaust gases, in particular in the exhaust gases of the internal combustion engine in order to recover energy therefrom. About the recovered energy can then be driven for example in an exhaust gas turbocharger, a compressor to compress the internal combustion engine supplied fresh air.
  • the energy recovered from the exhaust gases by means of the exhaust gas turbine typically serves to provide additional mechanical power for driving the motor vehicle.
  • Other comparable applications of exhaust gas turbines known from the prior art can also use the recovered energy for other purposes, for example for driving ancillaries or the like.
  • wastegate valves blow-off valves or air recirculation valves
  • These valves are typically constructed in the form of flaps, which have an opening in a flow channel, by which gas flows from or to the impeller or the wheels, can open, so as to be able to blow off the gas, for example, in the area after the impeller can.
  • the valve device is typically called a wastegate valve. It can then be used to improve the controllability of the exhaust gas turbine. If, in such situations, the exhaust pressure across the exhaust gas turbine is reduced by such a wastegate valve, the losses are minimized.
  • valve device with a similar construction can also be used in the area of the compressor turbine as an impeller of the turbomachine. It can then, for example, open a bypass around the compressor turbine, either as a mere safety valve or to blow off already compressed air after the compressor turbine, so as to regulate the air supply.
  • the latter variant which is quite customary in the prior art, is generally not preferable because of the associated energy losses.
  • a typical structure for such a valve device is the realization of the valve by a flow opening in a housing wall in the housing for the impeller, which can be closed or opened by a movable relative to the flow opening flap.
  • a flap is actuated by a shaft which projects through the housing to the outside and is provided for example with a lever and an adjusting element.
  • the flap is rotationally carried out with the shaft, for example, welded off-center.
  • Rotary movement of the shaft can be as the flap on the flow opening in the housing wall to close or can be closed by the
  • the structure with the flap also has the advantage that the flow channel through the flap in is narrowed his flow-through cross-section. If the shaft and thus the pivot axis of the flap are now arranged in the direction of flow of the medium downstream of the flow opening in the housing wall, then an advantageous back pressure can be generated, which promotes the outflow of the medium through the now released from the flap flow opening.
  • an opening for passing the shaft for actuating the valve flap is typically provided in the region of the housing wall.
  • This opening for the shaft is either a bore adapted to the diameter of the shaft through the housing wall or a bearing sleeve pressed into the housing wall for the shaft.
  • valve flap must be connected to the shaft. This is often done by welding, which then has to be done in the typically very cramped area of the flow channel. In this case, an exact fixation of the flap over the flow opening, which is to close or release this required. This is very complicated due to the typically cramped space and requires a correspondingly high installation time. Due to the cramped space it also often leads to assembly errors, which then have a leak between the valve flap and the flow opening result. The housing for the impeller must then be revised or possibly even discarded.
  • housings for impellers typically have spiral channels around the largest diameter of the impeller are
  • the opening through which the shaft is guided through the housing wall to the outside of the flow channel having an opening width which is greater than the largest diameter of the smallest projection surface of the valve flap and the mounted state in the flow channel projecting part of the shaft, and that this opening is closed in the mounted state with a cover through which the shaft passes.
  • the housing according to the invention therefore provides an opening in the region of a housing wall around the flow channel, which is so large that valve flap and shaft can be introduced in the already connected state through this opening in the flow channel.
  • the structure can be like this be mounted very easily, reliably and with high accuracy, since the connection of the valve flap with the shaft is omitted in the interior of the flow channel.
  • valve flap and the shaft can rather be preassembled outside the housing and then introduced through the opening in the flow channel.
  • the opening is then closed by a lid in the assembled state, the shaft passing through the lid.
  • the lid can in principle be connected to the housing in any desired manner.
  • a detachable connection, which takes place, for example, by screwing the lid to the housing, is in terms of any maintenance or
  • the cover itself can also be preassembled together with shaft and valve flap as a unit, so that these components can be introduced during assembly in the flow channel or the housing and connected to it.
  • Connection of the lid can be done on different series of
  • the cover is designed to be round and at least partially provided on its end side with a thread which cooperates with a thread in the region of the correspondingly formed opening.
  • the cover may be embodied as a single component which has an opening, for example centrally or eccentrically arranged, through which the shaft, ideally in sealing engagement with the cover,
  • the eccentric arrangement of the opening offers the possibility of a rotation of the lid about its center
  • the cover has a bearing sleeve for the shaft.
  • a bearing sleeve can for example be made of a suitable bearing material, while the lid itself can be made of another suitable for the connection and the introduction of a permanently stable thread more suitable material.
  • the bearing sleeve is made pressed with the lid.
  • Such compression of the bearing sleeve with the lid substantially corresponds to the assembly, as it is customary from the prior art.
  • no different holding devices for the housing must be provided, since the sleeve is pressed only with the lid, which is ideally standardized in all series of the housing and thus requires only a single receiving device during pressing.
  • the bearing sleeve can then, as in the previous structure without having to change proven materials and dimensions, be pressed with the lid.
  • the entire structure of lid with pressed-bearing sleeve, shaft and attached thereto, for example, welded valve flap, can then be preassembled independently of the housing of the impeller and stored in larger quantities.
  • the shaft has a lever on the side facing away from the valve flap.
  • This can also be attached directly to the pre-assembly of the unit, for example, welded, so that the unit can be connected directly to an actuator, such as a servomotor, a hydraulic or pneumatic actuator or the like for actuating the valve flap to open or close the flow opening in the flow channel can.
  • the preferred use of such a housing is in use as a so-called wastegate valve for an exhaust gas turbine of a turbocharger or a turbo-compound system.
  • the impeller is an exhaust gas turbine and / or a compressor wheel of an exhaust gas turbocharger.
  • Figure 1 is a schematic representation of an exhaust gas turbocharger; and a possible embodiment of the valve device according to the invention in the field of exhaust gas turbine.
  • the following embodiment describes the functionality and structure of a valve device 1 for an exhaust gas turbine 2 using the example of a turbocharger 3, which can be seen in the representation of Figure 1 in a schematic view.
  • the exhaust gas turbine or turbine 2 of the exhaust gas turbocharger 3 is connected in a manner known per se via a shaft 4 to a compressor or a compressor wheel 5.
  • the turbine 2 flows through the arrow designated A hot exhaust gas, for example from the range of an internal combustion engine, not shown, to. This hot exhaust gas is expanded in the turbine 2 and then passes through the arrow designated a in the area of the environment. The resulting
  • valve device used for this purpose can analogously Inventive valve device 1 be constructed, which will be described and explained in more detail below using the example of the exhaust gas side.
  • valve device 1 which is also referred to as Umblaseventil, recirculation valve, blow-off valve or wastegate valve. It connects the region of the exhaust gas A flowing into the turbine 2 with the region of the exhaust gas a leaving the turbine 2.
  • valve device 1 which was indicated in principle in Figure 1, to recognize in their concrete structure.
  • the valve device 1 consists of a valve flap 6, which can close and release a dashed line indicated here flow opening 7 in a housing wall 8.
  • the housing wall 8 encloses a flow channel 9, for example, the inlet space for the exhaust gas A in the exhaust gas turbine 2.
  • the housing wall 8 is part of a housing, in this case, for example, part of the turbine housing.
  • the valve device 1 is next to the valve flap 6 of a shaft 10, which is arranged in the embodiment shown here off-center of the valve flap 6 and connected via a connecting element 11 with this.
  • the connection can in particular by a
  • valve device 1 also has at its the
  • the lever 12 is connected to an actuating device 13, for example a servomotor, a hydraulic or pneumatic piston or the like, in connection.
  • an actuating device 13 for example a servomotor, a hydraulic or pneumatic piston or the like, in connection.
  • the valve flap 6 can be made of the in FIG shown closed position of the flow opening 7 to pivot about the axis of the shaft 10 and are so, depending on the pivoting angle, a continuously expanding cross section of the flow opening 7 free.
  • the shaft 10 is mounted in the embodiment shown here in a bearing sleeve 14 so that these via the lever 12 and the
  • Actuator 13 is rotatable, and that at the same time the best possible sealing of the flow channel 9 in the region between the shaft 10 and the bearing sleeve 14 is ensured.
  • the bearing sleeve 14 is introduced into a lid 15, for example, pressed.
  • the lid 15 sits in the mounted
  • housing wall 8 and cover 15 are screwed together.
  • the cover 15 also has, in the region facing away from the flow channel 9, a collar 18 which has a sealing surface 19 on its surface facing the flow channel. This sealing surface 19, together with a corresponding, surrounding the opening 16 sealing surface 20 a very good seal between the lid 15 and the housing wall 8 in the assembled state.
  • the opening 16 now has an opening width D, which corresponds to a circular diameter in the embodiment shown in Figure 2.
  • the opening 16 could also have other shapes, such as a rectangular shape, an oval shape or the like.
  • the opening width D would be the largest opening width.
  • the opening width D is to be chosen in each case so that it is greater than the largest diameter of the smallest
  • the largest diameter of the smallest projection surface is exemplified by indicated in Figure 2 with d diameter.
  • Projection surface of the protruding into the flow channel 9 in the assembled state parts of the valve device 1 can - in the example shown by slight tilting - through the larger opening 16 in the mounted state in the
  • Flow channel 7 are introduced.
  • a complex assembly for example, the elaborate welding of the valve flap 6 with the connecting element 11 and / or the shaft 10 in the interior of the flow channel 7, can thus be avoided.
  • Connecting element 11, shaft 10, bearing sleeve 14, cover 15 and optionally with the lever 12 can thus be pre-assembled outside the flow channel 9 and can then be introduced through the opening 16 in the flow channel and mounted by tightening the lid 15. The effort in terms of assembly is minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne un boîtier pour un rotor d'une turbomachine comprenant : - un canal d'écoulement qui est entouré par une paroi du boîtier, - un clapet de soupape, qui permet de fermer ou d'ouvrir de manière sélective une ouverture d'écoulement dans la paroi du boîtier, - un arbre qui est relié au clapet de soupape, - l'arbre étant guidé à travers une ouverture dans la paroi du boîtier vers l'extérieur du canal d'écoulement. L'invention est caractérisée en ce que l'ouverture présente une largeur d'ouverture qui est supérieure au plus grand diamètre de la plus petite surface en projection du clapet de soupape, et de la partie de l'arbre faisant saillie dans le canal d'écoulement dans l'état monté, et en ce que l'ouverture dans l'état monté est fermée par un couvercle à travers lequel passe l'arbre.
PCT/EP2011/005537 2010-11-09 2011-11-03 Boîtier de rotor WO2012062428A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2011800331634A CN102971505A (zh) 2010-11-09 2011-11-03 用于涡轮的壳体
JP2013537038A JP2013541671A (ja) 2010-11-09 2011-11-03 羽根車のためのハウジング
EP11779350A EP2558697A1 (fr) 2010-11-09 2011-11-03 Boîtier de rotor
US13/761,773 US20130149114A1 (en) 2010-11-09 2013-02-07 Housing for a blade wheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050669.9 2010-11-09
DE102010050669A DE102010050669A1 (de) 2010-11-09 2010-11-09 Gehäuse für ein Laufrad

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/761,773 Continuation US20130149114A1 (en) 2010-11-09 2013-02-07 Housing for a blade wheel

Publications (1)

Publication Number Publication Date
WO2012062428A1 true WO2012062428A1 (fr) 2012-05-18

Family

ID=44910173

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/005537 WO2012062428A1 (fr) 2010-11-09 2011-11-03 Boîtier de rotor

Country Status (6)

Country Link
US (1) US20130149114A1 (fr)
EP (1) EP2558697A1 (fr)
JP (1) JP2013541671A (fr)
CN (1) CN102971505A (fr)
DE (1) DE102010050669A1 (fr)
WO (1) WO2012062428A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019963B4 (de) * 2012-10-11 2019-07-11 Audi Ag Abgasturbolader für eine Brennkraftmaschine sowie Verfahren zum Montieren eines Abgasturboladers
DE102013201992B4 (de) * 2013-02-07 2019-09-05 Continental Automotive Gmbh Verfahren zur Herstellung einer Klappeneinrichtung zum Öffnen und Schließen eines Wastegatekanals eines Turboladers und Turbolader
JP5954292B2 (ja) * 2013-10-11 2016-07-20 株式会社デンソー ターボチャージャ
DE102014209666A1 (de) * 2013-12-19 2015-06-25 Bosch Mahle Turbo Systems Gmbh & Co. Kg Turbinengehäuse für einen Abgasturbolader
CA2952169A1 (fr) * 2014-05-08 2015-11-12 Borgwarner Inc. Agencement de commande d'un turbocompresseur a gaz d'echappement
US10344666B2 (en) * 2014-09-01 2019-07-09 Garrett Transportation I Inc. Turbine wastegate
JP6705146B2 (ja) 2015-10-07 2020-06-03 株式会社Ihi 流量可変バルブ機構及び過給機
US10823048B2 (en) * 2019-02-28 2020-11-03 Borgwarner Inc. Turbine housing for a multi-flow turbine
CN112870459A (zh) * 2021-01-19 2021-06-01 温州医科大学附属第一医院 一种便携式引流袋
CN113236789B (zh) * 2021-04-30 2022-12-27 华能海南发电股份有限公司东方电厂 一种防断裂汽轮机调节阀阀杆结构

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE3131178A1 (de) * 1981-08-06 1983-02-24 Leybold-Heraeus GmbH, 5000 Köln Vakuumventil, dessen ventilteller beim oeffnen aus dem durchflussweg geschwenkt wird
WO2003089819A1 (fr) * 2002-04-15 2003-10-30 Jenara Enterprises Ltd. Soupape de commande des gaz d'echappement, dispositif et procede de commande de l'ecoulement des gaz d'echappement
DE20221496U1 (de) * 2002-08-08 2006-02-09 Pierburg Gmbh Ansaugkanalsystem
WO2007031752A1 (fr) * 2005-09-15 2007-03-22 Malcolm George Leavesley Appareil turbocompresseur variable avec moyens de dérivation destinés à dériver des gaz d’échappement
US20070119170A1 (en) * 2005-11-29 2007-05-31 Patrick Masson Non-rotating turbocharger waste gate valve

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Publication number Priority date Publication date Assignee Title
DE613700C (de) * 1932-10-06 1935-05-24 Marle Schaekel Geb Kurth Absperrvorrichtung
DE3346472C2 (de) * 1982-12-28 1991-09-12 Nissan Motor Co., Ltd., Yokohama, Kanagawa Radialturbine mit veränderlicher Leistung
US4526004A (en) * 1983-10-25 1985-07-02 Holset Engineering Company Limited Exhaust brake valve
US5137003A (en) * 1989-05-19 1992-08-11 Mitsubishi Denki K.K. Supercharged pressure control valve apparatus
JPH05248253A (ja) * 1992-03-09 1993-09-24 Aisan Ind Co Ltd ターボチャージャ用ウェストゲートバルブ
US8499432B2 (en) * 2007-03-06 2013-08-06 Borgwarner Inc. Wastegate assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131178A1 (de) * 1981-08-06 1983-02-24 Leybold-Heraeus GmbH, 5000 Köln Vakuumventil, dessen ventilteller beim oeffnen aus dem durchflussweg geschwenkt wird
WO2003089819A1 (fr) * 2002-04-15 2003-10-30 Jenara Enterprises Ltd. Soupape de commande des gaz d'echappement, dispositif et procede de commande de l'ecoulement des gaz d'echappement
DE20221496U1 (de) * 2002-08-08 2006-02-09 Pierburg Gmbh Ansaugkanalsystem
WO2007031752A1 (fr) * 2005-09-15 2007-03-22 Malcolm George Leavesley Appareil turbocompresseur variable avec moyens de dérivation destinés à dériver des gaz d’échappement
US20070119170A1 (en) * 2005-11-29 2007-05-31 Patrick Masson Non-rotating turbocharger waste gate valve

Also Published As

Publication number Publication date
JP2013541671A (ja) 2013-11-14
DE102010050669A1 (de) 2012-05-10
EP2558697A1 (fr) 2013-02-20
US20130149114A1 (en) 2013-06-13
CN102971505A (zh) 2013-03-13

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