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JP4443961B2 - Guide device for radial turbine - Google Patents
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JP4443961B2 - Guide device for radial turbine - Google Patents

Guide device for radial turbine Download PDF

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Publication number
JP4443961B2
JP4443961B2 JP2004067286A JP2004067286A JP4443961B2 JP 4443961 B2 JP4443961 B2 JP 4443961B2 JP 2004067286 A JP2004067286 A JP 2004067286A JP 2004067286 A JP2004067286 A JP 2004067286A JP 4443961 B2 JP4443961 B2 JP 4443961B2
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Japan
Prior art keywords
blade
spring element
blade shaft
shaft
housing part
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Expired - Fee Related
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JP2004067286A
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Japanese (ja)
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JP2004278532A (en
Inventor
バルトロメ クラウス
クナイプ スフェン
シースル ゲルハルト
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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • 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
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Control Of Turbines (AREA)

Description

本発明は、流量を調整すべくハウジング内に配置され、調整装置により調整可能な羽根を備えた重油燃料式往復動内燃機関の排気駆動過給機のラジアルタービン用案内装置に関する。   The present invention relates to a guide device for a radial turbine of an exhaust-drive supercharger of a heavy oil fuel type reciprocating internal combustion engine, which is disposed in a housing for adjusting a flow rate and includes blades adjustable by an adjusting device.

重油燃料で運転される往復動内燃機関は、排気ガス内に固形粒子を含む。この粒子は案内装置に付着し、そのため可調整羽根の申し分ない機能が害される。   A reciprocating internal combustion engine operated with heavy oil fuel contains solid particles in exhaust gas. These particles adhere to the guide device and thus impair the satisfactory function of the adjustable vanes.

本発明の課題は、羽根調整時の機能障害を十分に防止可能な、冒頭に述べた形式の案内装置を提供することにある。   An object of the present invention is to provide a guide device of the type described at the beginning, which can sufficiently prevent functional failures during blade adjustment.

この課題は、本発明によれば、流量を調整すべくハウジング内に配置され、調整装置により調整可能な羽根を備えた重油燃料式往復動内燃機関の排気駆動過給機のラジアルタービン用案内装置において、羽根の軸が、案内装置における排気駆動過給機の圧縮機側のハウジング部分に支持され、羽根軸の先端前にばね要素が設けられ、該要素が、前記軸を反対側ハウジング部分の接触支持面に、羽根の端面を支持すべく押し付け、前記ばね要素を羽根軸から熱絶縁すべく、ばね要素と羽根軸のばね要素側端との間に圧力部材がはめ込まれ、かつ前記圧力部材が、羽根軸の端面直径より小さい直径の軸方向孔を有することで解決できる。
 According to the present invention, a radial turbine guide device for an exhaust-drive supercharger of a heavy oil fuel reciprocating internal combustion engine, which is provided in a housing to adjust the flow rate and has vanes that can be adjusted by the adjusting device. in the axis of the blade is supported on the housing portion of the compressor side of the exhaust driven supercharger of the guide device, the spring element is provided in front tip of the blade shaft, said elements, opposite the housing portion of the shaft to contact the support surface, pressing in order to support the end surface of the blade, said spring element in order to heat insulated from the blade axis, the pressure member is fitted between the spring element end of the spring element and the blade shaft, and the pressure member but it can be solved by Rukoto that have a axial hole of smaller diameter than the end surface diameter of the blade shaft.

羽根端面の接触支持面での持続的な接触支持と羽根の調整運動とで、羽根端面に付着する固形粒子をかき取る。更に、羽根とその軸受の熱膨張を受け止められる。更に、羽根軸と共働する部分（軸受）を圧縮機側ハウジング部分に配置したことで、特にばね要素の熱的負荷が小さくなる。この結果、ばね要素の寿命が長くなる。   Solid particles adhering to the blade end surface are scraped off by the continuous contact support on the contact support surface of the blade end surface and the adjustment movement of the blade. Furthermore, the thermal expansion of the blade and its bearing can be received. Furthermore, the thermal load on the spring element is particularly reduced by arranging the portion (bearing) that cooperates with the blade shaft in the compressor-side housing portion. As a result, the life of the spring element is increased.

調整装置の各調整レバーを、ばね要素と羽根との間で羽根軸に連結する、即ち同様に熱的負荷を非常に小さい範囲に配置するとよい。   Each adjusting lever of the adjusting device may be connected to the blade shaft between the spring element and the blade, i.e. the thermal load is likewise arranged in a very small range.

ばね要素と羽根軸のばね要素側端の間に圧力部材をはめ込むと好ましい。この処置は、圧力部材が羽根軸の端面直径より小さい直径の軸方向孔を有するなら一層強化される。   It is preferable to fit a pressure member between the spring element and the end of the blade shaft on the spring element side. This treatment is further enhanced if the pressure member has an axial bore with a diameter smaller than the end face diameter of the blade shaft.

本発明の他の特徴を、従属請求項と図を参照した実施例の説明から明らにする。図１は本発明に基づく案内装置の一部を断面図で示す。   Other features of the invention emerge from the description of the embodiments with reference to the dependent claims and the figures. FIG. 1 shows a part of a guide device according to the invention in a sectional view.

図１の１は排気駆動過給機の圧縮機（図示せず）側のハウジング部分を示し、２は反対側のハウジング部分である。これら両部分１、２は、排気ガスが矢印８で示す流れ方向に貫流する流路の開口断面を規定する。一方のハウジング部分１内に、羽根５の軸４に対する軸受を形成するはめ込み部材３を固定的に配置している。はめ込み部材３と羽根軸４は同じ材料で作るとよい。この結果運転中の両部品の有害な異なる熱膨張を防止できる。   Reference numeral 1 in FIG. 1 denotes a housing part on the compressor (not shown) side of the exhaust drive supercharger, and reference numeral 2 denotes a housing part on the opposite side. These both parts 1 and 2 define the opening cross section of the flow path through which the exhaust gas flows in the flow direction indicated by the arrow 8. In one housing part 1, a fitting member 3 forming a bearing for the shaft 4 of the blade 5 is fixedly arranged. The fitting member 3 and the blade shaft 4 may be made of the same material. As a result, harmful and different thermal expansion of both parts during operation can be prevented.

ハウジング部分１内の、羽根軸４の自由端の前に、圧力部材６を配置している。この部材６の羽根軸４と反対側に、ばね要素７が作用する。該要素７は円板ばねであるとよい。羽根軸４からばね要素７への熱流をできるだけ小さくして両要素への有害な熱的影響を防止すべく、圧力部材６に羽根軸４の軸線の長手方向に延びる孔を設けている。孔の直径は羽根軸４の先端直径より小さい。羽根軸４は排気ガス流路の開口断面に対し環状鍔９を持つ。この鍔９をはめ込み部材３にある切削凹所内に配置し、排気ガス流路の開口断面側面を、はめ込み部材３とハウジング部分１の対応した面と一致させている。環状鍔９の外周面にある溝に、密封用のシールリングをはめ込んでいる。   A pressure member 6 is arranged in the housing part 1 in front of the free end of the blade shaft 4. A spring element 7 acts on the side of the member 6 opposite to the blade shaft 4. The element 7 may be a disc spring. In order to minimize the heat flow from the blade shaft 4 to the spring element 7 and prevent harmful thermal effects on both elements, the pressure member 6 is provided with a hole extending in the longitudinal direction of the axis of the blade shaft 4. The diameter of the hole is smaller than the tip diameter of the blade shaft 4. The blade shaft 4 has an annular flange 9 with respect to the opening cross section of the exhaust gas passage. The flange 9 is disposed in a cutting recess in the fitting member 3, and the opening cross-sectional side surface of the exhaust gas flow path is made to coincide with the corresponding surfaces of the fitting member 3 and the housing part 1. A sealing ring for sealing is inserted in the groove on the outer peripheral surface of the annular flange 9.

更に、羽根軸４のはめ込み部材３から突出した自由端に、調整レバー１０が作用する。該レバー１０は調整装置の調整リング１１により、調整運動を羽根５に伝達する。座金付きのナット１２により、調整レバー１０の羽根軸４上での軸方向移動を防止している。   Further, the adjusting lever 10 acts on the free end protruding from the fitting member 3 of the blade shaft 4. The lever 10 transmits the adjusting motion to the blade 5 by the adjusting ring 11 of the adjusting device. The nut 12 with a washer prevents the adjustment lever 10 from moving in the axial direction on the blade shaft 4.

ばね要素７は、羽根軸４を経て羽根５の直線的端面１３を、ハウジング部分２に固く結合されたはめ込み部材１５の平らな堅い接触支持面１５に弾力的に押し付ける。羽根端面１３の固定接触支持面１４への弾力的支持により、羽根５の調整時に、接触支持面１４に付着する固形粒子が羽根５の熱膨張と無関係にかき取られる。   The spring element 7 elastically presses the linear end face 13 of the vane 5 via the vane axis 4 against the flat rigid contact support surface 15 of the fitting 15 which is rigidly connected to the housing part 2. Due to the elastic support of the blade end surface 13 to the fixed contact support surface 14, solid particles adhering to the contact support surface 14 are scraped off regardless of the thermal expansion of the blade 5 when the blade 5 is adjusted.

本発明に基づく案内装置の一部の断面図。Sectional drawing of a part of guide apparatus based on this invention.

符号の説明Explanation of symbols

１、２ ハウジング部分、４ 羽根、５ 羽根軸、６ 圧力部材、７ ばね要素、１３ 羽根端面、１４ 接触支持面 1, 2 Housing part, 4 blades, 5 blade shaft, 6 Pressure member, 7 Spring element, 13 Blade end surface, 14 Contact support surface

Claims (6)

流量を調整すべくハウジング内に配置され、調整装置により調整可能な羽根を備えた重油燃料式往復動内燃機関の排気駆動過給機のラジアルタービン用案内装置において、
羽根（５）の軸（４）が、案内装置における排気駆動過給機の圧縮機側のハウジング部分（１）に支持され、羽根軸（４）の先端前にばね要素（７）が設けられ、該要素（７）が前記軸（４）を反対側ハウジング部分（２）の接触支持面（１４）に、羽根（５）の端面（１３）を支持すべく押し付け、
前記ばね要素（７）を羽根軸（４）から熱絶縁すべく、ばね要素（７）と羽根軸（４）のばね要素（７）側端との間に圧力部材（６）がはめ込まれ、かつ前記圧力部材（６）が、羽根軸（４）の端面直径より小さい直径の軸方向孔を有することを特徴とする装置。 In a radial turbine guide apparatus for an exhaust drive supercharger of a heavy oil fuel type reciprocating internal combustion engine, which is disposed in a housing to adjust a flow rate and has blades adjustable by an adjustment device,
The shaft (4) of the blade (5) is supported by the housing portion (1) on the compressor side of the exhaust drive supercharger in the guide device, and a spring element (7) is provided in front of the tip of the blade shaft (4). The element (7) presses the shaft (4) against the contact support surface (14) of the opposite housing part (2) to support the end face (13) of the vane (5) ;
In order to thermally insulate the spring element (7) from the blade shaft (4), a pressure member (6) is fitted between the spring element (7) and the spring element (7) side end of the blade shaft (4), and said pressure member (6) is, and wherein the Rukoto that having a axial bore of smaller diameter than the end surface diameter of the blade shaft (4). 調整装置の調整レバー（１０）が、ばね要素（７）と羽根（５）の間で羽根軸（４）に連結されたことを特徴とする請求項１記載の装置。   2. The device according to claim 1, wherein the adjusting lever (10) of the adjusting device is connected to the blade shaft (4) between the spring element (7) and the blade (5). 羽根（５）の端面（１３）に対する接触支持面（１４）が、ハウジング部分（２）に結合されたはめ込み部材（１５）により形成されたことを特徴とする請求項１又は２記載の装置。 3. A device according to claim 1, wherein the contact support surface (14) for the end face (13) of the blade (5) is formed by a fitting member (15) connected to the housing part (2). ばね要素（７）が円板ばねからなることを特徴とする請求項１から３の１つに記載の装置。 Apparatus according to one of claims 1 to 3 in which the spring element (7) is characterized in that it consists of a disc spring. 羽根軸（４）の軸受として、ハウジング部分（１）にはめ込み部材（３）が設けられたことを特徴とする請求項１から４の１つに記載の装置。 As the bearing of the blade shaft (4), Apparatus according to one of claims 1 to 4, characterized in that member fitted to the housing part (1) (3) is provided. はめ込み部材（３）が羽根軸（４）と同じ材料で作られたことを特徴とする請求項５記載の装置。 6. A device according to claim 5 , characterized in that the fitting member (3) is made of the same material as the blade shaft (4).
JP2004067286A 2003-03-14 2004-03-10 Guide device for radial turbine Expired - Fee Related JP4443961B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10311205A DE10311205B3 (en) 2003-03-14 2003-03-14 Guiding device for a radial turbine of a turbocharger of a lifting piston I.C. engine operating with heavy oil has blades with shafts positioned in a housing part of the device facing a compressor of the turbocharger

Publications (2)

Publication Number Publication Date
JP2004278532A JP2004278532A (en) 2004-10-07
JP4443961B2 true JP4443961B2 (en) 2010-03-31

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KR (1) KR100993560B1 (en)
CN (1) CN100346060C (en)
CH (1) CH697316B1 (en)
DE (1) DE10311205B3 (en)

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Also Published As

Publication number Publication date
JP2004278532A (en) 2004-10-07
CH697316B1 (en) 2008-08-15
CN100346060C (en) 2007-10-31
KR20040081075A (en) 2004-09-20
CN1530518A (en) 2004-09-22
KR100993560B1 (en) 2010-11-11
DE10311205B3 (en) 2004-09-16

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