WO2015005252A1 - 過給機用サイレンサ - Google Patents
過給機用サイレンサ Download PDFInfo
- Publication number
- WO2015005252A1 WO2015005252A1 PCT/JP2014/068001 JP2014068001W WO2015005252A1 WO 2015005252 A1 WO2015005252 A1 WO 2015005252A1 JP 2014068001 W JP2014068001 W JP 2014068001W WO 2015005252 A1 WO2015005252 A1 WO 2015005252A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silencer
- intake
- turbocharger
- supercharger
- air
- Prior art date
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 91
- 238000005192 partition Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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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
- F04D29/40—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
- 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
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1288—Intake silencers ; Sound modulation, transmission or amplification combined with or integrated into other devices ; Plurality of air intake silencers
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
-
- 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
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
Definitions
- the present invention relates to a silencer for a supercharger applied to a turbocharger of a large diesel engine such as a marine engine, and more particularly to a structure of a silencer for a supercharger provided with an intake housing.
- a supercharger that compresses combustion air of an internal combustion engine and sends high-density air into the combustion chamber is known, and is widely used in, for example, large diesel engines for ships and power generation.
- a compressor for compressing combustion air and a turbocharger turbine serving as a drive source for the compressor are coaxial, housed in a casing, and rotate integrally. Note that the turbocharger turbine is driven by the energy held by the exhaust gas of the internal combustion engine.
- a conventional turbocharger uses a silencer for a supercharger as disclosed in Patent Document 1 below in order to mute noise generated from intake air.
- This silencer for a supercharger employs a double-bent-shaped (substantially Z-shaped) sound absorbing splitter as a silencer element (sound absorber) to maintain the sound deadening performance and reduce the low pressure loss.
- the sound absorbing splitters are arranged in the intake flow path by combining a number of them in the same direction.
- turbocharger silencers 1 and 1A shown in FIGS. 4 and 5 the sound absorption splitters 2 are radially arranged at intervals in the circumferential direction at the inlet portion of the intake passage.
- other turbocharger silencers may employ a silencer element in which a sound absorbing splitter having a curved shape (such as an arc shape) is combined instead of the substantially Z shape.
- the silencer structure for a supercharger of a general marine engine does not have an air suction housing like the turbocharger silencer 1 shown in FIG. 4, for example, the air is sucked from the radial direction with respect to the rotor shaft. It has a shipboard intake system with a structure.
- the silencer structure for an outboard intake turbocharger which has a duct for intake and sucks in air (outside air) directly from outside the ship, supplies low temperature air from outside the ship to the turbocharger. It becomes possible to increase the combustion efficiency of the engine.
- an intake duct (not shown) is provided in an intake housing H provided so as to surround the silencer body (supercharger silencer 1 in FIG. 4). Is connected.
- the silencer element such as the sound absorbing splitter 2 disclosed in the above-mentioned cited document 1 is applied to the inboard intake type turbocharger silencer 1 without the intake housing H as shown in FIGS. 1 and 5 of the present application. Then, as indicated by an arrow F1 in FIG. 4, intake air passes from the same direction with respect to the silencer element having the intake flow direction. For this reason, in the ship-intake type turbocharger silencer 1, substantially uniform suction is possible over the entire circumference of the silencer.
- the silencer circle with the axis L of the intake inlet Hi opening to the intake housing H as a boundary.
- the suction state of intake air around the circumference is uneven. That is, since the inflow direction of the intake air is limited by the intake housing H, the relationship between the cross-sectional shape of the sound absorption splitter 2 and the intake flow direction F2 is substantially opposite with the axis L as a boundary. For this reason, the suction state of the intake air becomes uneven around the silencer 1 for the supercharger.
- the pressure loss inside the silencer increases, and there is a concern that the performance of the turbocharger may deteriorate.
- the silencer element such as the sound absorption splitter 2 having the intake flow direction is improved in the arrangement structure of the turbocharger. Improvement is desired.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a silencer for a turbocharger including an outboard intake type intake housing, with the silencer circumference around the axis of the intake inlet.
- An object of the present invention is to provide a silencer for a supercharger that can eliminate the non-uniform intake state of intake air.
- a silencer for a supercharger includes an intake housing connected to an outside air introduction duct, and is attached to an air intake port of the supercharger main body so as to be radially outward with respect to the rotor shaft of the supercharger main body.
- a silencer for a supercharger that silences intake air sucked in from the side, wherein a plurality of silencer elements are arranged radially with respect to a rotor shaft of the turbocharger body, and one of the plurality of silencer elements It is installed so that the direction of the top part of the silencer element of the part is different from the direction of the top part of the remaining silencer element.
- a plurality of silencer elements are arranged radially with respect to the rotor shaft of the turbocharger body, and the top of some silencer elements among the plurality of silencer elements is oriented. Installed differently from the top direction of the remaining silencer elements. For this reason, the thing where the cross-sectional shape of a silencer element and the relationship between the flow directions of an intake air flow in the opposite direction decreases, and it can suppress that the suction
- the orientations with respect to the rotor shafts at the tops of the plurality of silencer elements be installed in different directions with respect to the intake inlet opening axis of the intake housing. Thereby, it can prevent or suppress reliably that the relationship between the cross-sectional shape of a silencer element and an intake flow direction becomes reverse direction. And since the flow velocity distribution of intake air is made uniform and the intake air intake distribution inside the silencer is also made uniform, it is possible to suppress performance degradation due to separation and vortex.
- a partition plate for preventing interference of intake air flow in the intake housing is further provided.
- a supercharger according to the present invention includes the supercharger silencer according to any one of claims 1 to 3. Accordingly, the number of silencer elements whose cross-sectional shape and the direction of intake air flow are in opposite directions is reduced, and it is possible to suppress the intake air from being non-uniformly drawn.
- the silencer for a turbocharger provided with the intake housing the suction state of the left and right intake air generated with reference to the axis of the intake inlet is eliminated, and the pressure loss inside the silencer increases. It is possible to prevent the deterioration of the turbocharger performance.
- FIG. 1 is a longitudinal cross-sectional view (a cross-sectional view in a direction perpendicular to a rotor shaft) showing an example of arrangement of silencer elements in an intake passage as an embodiment of a silencer for a supercharger according to the present invention. It is a figure of a test result which shows the relation between efficiency (vertical axis) and compressor pressure ratio (horizontal axis) about the supercharger of the silencer for superchargers shown in Drawing 1 compared with the conventional structure.
- FIG. 6 is a longitudinal sectional view showing a conventional example of silencer element arrangement in a supercharger silencer of an inboard air intake system (without an air suction housing).
- FIG. 5 is a longitudinal sectional view showing a conventional example of silencer element arrangement in an outboard intake type (with air suction housing) turbocharger silencer.
- FIG. 3 is a longitudinal sectional view showing a configuration example of an exhaust turbine supercharger equipped with a silencer for a supercharger according to the present invention.
- the silencer for a supercharger according to the present invention is such an exhaust turbine supercharger. It can be applied to the machine 10.
- the illustrated exhaust turbine supercharger 10 is attached to, for example, a marine diesel engine (for example, a low-speed two-cycle diesel engine) (not illustrated) and communicates with the inside of a cylinder liner (not illustrated) that constitutes the marine diesel engine.
- a device for supplying compressed air to an air manifold (not shown).
- the exhaust turbine supercharger 10 includes a gas inlet casing 11, a gas outlet casing 12, a bearing base 13, and a compressor-side air guide casing 14 that are integrally fastened by bolts (not shown). It is comprised by.
- the rotor shaft 15 is rotatably supported in the bearing base 13 by a thrust bearing 16 and radial bearings 17 and 18, and a turbine 19 constituting a turbine portion is solidified at one end, and a compressor portion is provided at the other end.
- the compressor impeller (impeller) 20 which comprises is consolidated.
- the turbine 19 on one end side has a large number of blades 19a on the outer periphery.
- the blade 19 a is disposed between an exhaust gas introduction path 22 provided in the gas inlet casing 11 and an exhaust gas discharge path 23 provided in the gas outlet casing 12.
- the compressor impeller 20 on the other end side has a large number of blades 20a on the outer peripheral portion.
- the blade 20 a is disposed behind an intake air introduction path (intake flow path) 24 provided in the air guide casing 14.
- the intake air introduction path 24 is connected to the spiral chamber 25 via the compressor impeller 20, and the spiral chamber 25 is connected to the combustion chamber of the engine via an intake air introduction path (not shown).
- the exhaust turbine supercharger 10 described above includes a supercharger silencer 30 upstream of the intake air introduction path 24.
- the turbocharger silencer 30 is a device that is installed upstream (upstream) of the intake air compressed by the compressor section into the intake air introduction path 24, that is, upstream of the inlet section of the intake air introduction path 24.
- the turbocharger silencer 30 also has an outside air introduction duct (not shown) for introducing air having a low temperature from the outside of the ship into an intake housing (air suction housing) H provided so as to surround the outer periphery of the silencer body 31. Is connected.
- the turbine supercharger 10 is an outboard intake type supercharger silencer including the intake housing H.
- the turbocharger silencer 30 shown in FIG. 1 includes the intake housing H connected to the outside air introduction duct, and is further attached to the air intake port of the exhaust turbine supercharger (supercharger main body) 10. As a result, the intake air sucked from the outside in the radial direction with respect to the rotor shaft of the supercharger body via the intake air introduction passage 24 is silenced.
- a plurality of sound absorbing splitters 2 serving as silencer elements are installed at the inlet of the intake passage 24.
- the sound absorbing splitter 2 is a punching in which the outer periphery that is present in the axial direction of the rotor shaft 15 and is not made to face the wall surfaces 32 and 33 of the silencer body 31 is made of metal such as aluminum, and a large number of through holes are formed.
- the periphery is surrounded by an outer peripheral wall Pm made of metal.
- the outer peripheral wall Pm of the sound absorbing splitter 2 is formed with two bent portions 2a and 2b which are bent in opposite directions to each other. Therefore, each of the sound absorbing splitters 2 has a substantially Z-shaped cross section as a whole.
- Such a sound-absorbing splitter 2 is arranged such that the flow path resistance is reduced with respect to the intake flow direction. That is, when the sound absorbing splitter 2 in the present embodiment is used, the apex 2a of the bent portion (the convex portion of the bent portion on the radially outer side of the two bent portions 2a and 2b) has a substantially Z-shaped cross-sectional shape. To be directed in one direction (more specifically, as shown in FIG.
- the turbocharger silencer 30 including the intake housing H is installed such that at least some of the sound absorbing splitters 2 are bent at the tops 2a of the bent portions, as viewed from the rotor shaft.
- the sound absorption splitter 2 in FIG. 1 includes the axis L of the intake inlet opening Hi of the intake housing H (for example, the axis of the rotor shaft and the intake inlet opening).
- the direction of the apex 2a of the bent portion of the sound-absorbing splitter 2 is set to be different from the rotor shaft.
- the direction of the apex 2a of the bent portion of the sound absorbing splitter 2 is arranged so that the cross-sectional shape is substantially bilaterally symmetric about the axis L.
- the axis L of the intake inlet opening Hi is provided at an axis inclination angle of ⁇ 1 from the horizontal line.
- the axis inclination angle ⁇ 1 is in the range of 0 to 90 degrees, and the exit-side angle ⁇ 2 is also from 0 degrees to ⁇ 1. Therefore, the direction of the apex portion 2a of the bent portion of the sound absorbing splitter 2 may be substantially vertically symmetrical about the axis L when apparently the axis inclination angle ⁇ 1 is close to 0 degrees.
- turbocharger silencer 30 of the present embodiment may be provided with a partition plate so that the flow of intake air does not interfere in the intake housing. More preferably, a partition plate 40 is provided at a position on the axis L of the intake inlet opening Hi and opposite to the position of the intake inlet opening Hi in the intake housing to prevent the flow of intake air from interfering. Also good.
- the number of the sound absorbing splitters 2 on the left and right of the axis L is different from 22 or 23. However, the arrangement of the different quantity in different directions is substantially symmetrical. Can think.
- the sound absorbing splitter 2 is arranged so that the top portion 2a faces the downstream side in the flow direction of the intake air. They are arranged radially at intervals.
- the arrangement of the sound absorbing splitter 2 with the top portion 2a facing the downstream side in the flow direction of the intake air is intended for all the sound absorbing splitters 2 existing in a region in which the flow direction of the intake air passing therethrough is opposite to the predetermined air flow direction. It is desirable to do.
- the intake air introduced into the intake housing H flows in a predetermined flow direction regardless of which of the right and left flow paths with the axis L as a boundary, and receives substantially the same pressure loss. Accordingly, the pressure loss is substantially the same regardless of which flow path is passed, and as a result, it is possible to eliminate the non-uniform intake state of the intake air from the axis L, thereby increasing the pressure loss inside the silencer. It is possible to prevent deterioration of the feeder performance.
- the flow velocity distribution and suction distribution of the intake air inside the intake housing H are made uniform around the silencer 30 for the turbocharger. Reduction of supercharger performance due to vortices can be suppressed.
- the turbocharger to which the silencer of the present embodiment is applied is improved by improving the supercharging efficiency at low load as compared with the conventional structure, as is clear from the test results shown in FIG. ing.
- the silencer element has been described as the sound absorption splitter 2, but the present invention is not limited to this.
- other silencer elements having a predetermined flow direction such as an arc-shaped cross section may be used. It goes without saying that is also applicable.
- this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can change suitably.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
また、他の過給機用サイレンサにおいては、略Z状に代えて曲線形状(円弧状等)の吸音スプリッタを組み合わせたサイレンサエレメントを採用したものもある。
一方、吸気用のダクトを設けて船外から直接空気(外気)を吸い込む方式とした船外吸気方式の過給機用サイレンサ構造は、船外から温度の低い空気を過給機へ供給して機関の燃焼効率を高めることが可能になる。このような船外吸気方式のサイレンサ1Aでは、例えば図5に示すように、サイレンサ本体(図4の過給機用サイレンサ1)を囲むようにして設けた吸気ハウジングHに吸気用のダクト(不図示)が接続されている。
本発明は、上記の事情に鑑みてなされたものであり、その目的とするところは、船外吸気式の吸気ハウジングを備えた過給機用サイレンサにおいて、吸気入口の軸線を境界としてサイレンサ円周における吸気の吸い込み状態が不均一になることを解消できる過給機用サイレンサを提供することにある。
本発明に係る過給機用サイレンサは、外気導入ダクトに連結される吸気ハウジングを備え、過給機本体の空気吸込口に取付けられることで前記過給機本体のロータ軸を基準として放射方向外方から吸込まれる吸気の消音を行なう過給機用サイレンサであって、前記過給機本体のロータ軸を基準として複数のサイレンサエレメントが放射状に配置され、かつ、前記複数のサイレンサエレメントのうち一部のサイレンサエレメントの頂部の向きが残りのサイレンサエレメントの頂部の向きと異なるように設置されるものである。
また、上記に発明において、前記吸気ハウジング内において吸気流れの干渉を防止する仕切り板をさらに備えることが望ましい。
図3は、本発明に係る過給機用サイレンサを具備した排気タービン過給機の構成例を示す縦断面図であり、本発明に係る過給機用サイレンサは、このような排気タービン過給機10に適用され得るものである。
図示の排気タービン過給機10は、例えば、図示しない舶用ディーゼル機関(例えば、低速2サイクルディーゼル機関)に装着されて、舶用ディーゼル機関を構成するシリンダライナ(図示せず)の内部と連通する給気マニホールド(図示せず)に圧縮された空気を供給する装置である。
一方、他端部側のコンプレッサ羽根車20は、外周部に多数のブレード20aを有している。このブレード20aは、空気案内ケーシング14に設けられた吸入空気導入路(吸気流路)24の後方に配置されている。吸入空気導入路24は、コンプレッサ羽根車20を介して渦巻き室25に接続され、さらに、渦巻き室25は図示しない吸入空気導入路を介してエンジンの燃焼室に接続されている。
また、この過給機用サイレンサ30は、サイレンサ本体31の外周を囲むようにして設けた吸気ハウジング(空気吸い込みハウジング)Hに、船外から温度の低い空気を導入するための外気導入ダクト(不図示)が接続されている。従って、このタービン過給機10は、吸気ハウジングHを備えた船外吸気方式の過給機用サイレンサとなる。
この吸音スプリッタ2は、ロータ軸15の軸方向に存在する外周であってサイレンサ本体31の壁面32,33と対向しない外周がアルミニウムのような金属製とされ、多数の通孔が形成されたパンチングメタルからなる外周壁Pmにより周囲を取り囲まれている。また、吸音スプリッタ2の外周壁Pmには、相互に逆方向に屈曲する2つの屈曲部2a,2bが形成され、従って、各吸音スプリッタ2は全体として略Z形の断面形状をなしている。
すなわち、本実施形態における吸音スプリッタ2を使用する場合には、略Z形の断面形状において屈曲部の頂部2a(2つの屈曲部2a,2bのうち径方向外側の屈曲部の凸形状部)が一方向に向くように(より具体的には、図5のように、全ての吸音スプリット2の屈曲部の頂部2aがロータ軸から見た場合に全て左向き(別の実施例においては全ての吸音スプリット2の屈曲部の頂部2aがロータ軸から見た場合に全て右向き)となるように)配置されるよりも、吸音スプリッタ2の屈曲部の頂部2aが吸気流れ方向下流側の向き(つまり図1における矢印F3の向き)となるように配置されると流路抵抗が小さくなる。
そこで、吸気ハウジングHを備えた過給機用サイレンサ30では、少なくとも一部の吸音スプリッタ2の屈曲部の頂部2aのロータ軸から見た向きが異なるように設置される。
なお、図示の構成例では、軸線Lの左右で吸音スプリッタ2の数が22枚または23枚と異なっているが、このような向きの異なる数量違いの配置についても、実質的には左右対称と考えることができる。
なお、頂部2aを吸気の流れ方向下流側に向ける吸音スプリッタ2の配置は、通過する吸気の流れ方向が所定の空気流れ方向と反対の向きになる領域に存在する全ての吸音スプリッタ2を対象とすることが望ましい。
すなわち、軸線Lに対して左右対称のサイレンサエレメント構造とすることにより、過給機用サイレンサ30の周囲においては、吸気ハウジングHの内部における吸気の流速分布や吸込分布が均一化し、流れの剥離や渦による過給機性能の低下を抑制できる。
なお、本発明は上述した実施形態に限定されることはなく、その要旨を逸脱しない範囲内において適宜変更することができる。
2a,2b 頂部
10 排気タービン過給機
15 ロータ軸
20 コンプレッサ羽根車
24 吸入空気導入路
30 過給機用サイレンサ
31 サイレンサ本体
32,33 壁面
H 吸気ハウジング
Hi 吸気入口開口
L 軸線
Claims (4)
- 外気導入ダクトに連結される吸気ハウジングを備え、過給機本体の空気吸込口に取付けられることで前記過給機本体のロータ軸を基準として放射方向外方から吸込まれる吸気の消音を行なう過給機用サイレンサであって、
前記過給機本体のロータ軸を基準として複数のサイレンサエレメントが放射状に配置され、かつ、前記複数のサイレンサエレメントのうち一部のサイレンサエレメントの頂部の向きが残りのサイレンサエレメントの頂部の向きと異なるように設置される過給機用サイレンサ。 - 前記複数のサイレンサエレメントの頂部のロータ軸を基準とした向きは、前記吸気ハウジングの吸気入口開口軸線を境にして異なる向きに設置される請求項1に記載の過給機用サイレンサ。
- 前記吸気ハウジング内において吸気流れの干渉を防止する仕切り板をさらに備える請求項1または2に記載の過給機用サイレンサ。
- 請求項1から3のいずれかに記載の過給機用サイレンサを備える過給機。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14822436.3A EP2868910A4 (en) | 2013-07-10 | 2014-07-07 | MUFFLER FOR CHARGING |
KR1020157002263A KR101547092B1 (ko) | 2013-07-10 | 2014-07-07 | 과급기용 사일런서 |
CN201480001930.7A CN104487694B (zh) | 2013-07-10 | 2014-07-07 | 增压器用消声器及增压器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2013-144515 | 2013-07-10 | ||
JP2013144515A JP5863720B2 (ja) | 2013-07-10 | 2013-07-10 | 過給機用サイレンサ |
Publications (1)
Publication Number | Publication Date |
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WO2015005252A1 true WO2015005252A1 (ja) | 2015-01-15 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/068001 WO2015005252A1 (ja) | 2013-07-10 | 2014-07-07 | 過給機用サイレンサ |
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EP (1) | EP2868910A4 (ja) |
JP (1) | JP5863720B2 (ja) |
KR (1) | KR101547092B1 (ja) |
CN (1) | CN104487694B (ja) |
WO (1) | WO2015005252A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016138465A (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸気整流装置、これを備えたコンプレッサ |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5894203B2 (ja) | 2014-03-04 | 2016-03-23 | 三菱重工業株式会社 | 過給機の製造方法 |
JP6470578B2 (ja) * | 2015-02-03 | 2019-02-13 | 三菱重工コンプレッサ株式会社 | 遠心圧縮機 |
DE102018100466A1 (de) | 2018-01-10 | 2019-07-11 | Abb Turbo Systems Ag | Filterschalldämpfer für einen Abgasturbolader einer Brennkraftmaschine |
Citations (4)
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JPS5272906A (en) * | 1975-12-11 | 1977-06-18 | Bbc Brown Boveri & Cie | Suctionnside mufflers of compressors provided with a plurality of attenuating units |
JPS61200372A (ja) * | 1985-02-23 | 1986-09-04 | エム・アー・エヌ・‐ベー・ウント・ヴエー・デイーゼル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 排ガスターボチヤージヤの圧縮機の吸込側の、前案内羽根を有する消音装置 |
JPH11200969A (ja) | 1998-01-13 | 1999-07-27 | Mitsubishi Alum Co Ltd | 過給機のサイレンサ |
JP2006194161A (ja) * | 2005-01-14 | 2006-07-27 | Mitsubishi Heavy Ind Ltd | 吸気サイレンサを備えた排気ターボ過給機 |
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DE1503270A1 (de) * | 1965-06-24 | 1970-07-16 | Fischachtaler Maschb Gmbh | Einlaufgehaeuse fuer Stroemungsmaschinen |
JPS60119328A (ja) * | 1983-11-30 | 1985-06-26 | Yamaha Motor Co Ltd | 内燃機関の吸気管構造 |
JP3425120B2 (ja) | 2000-06-21 | 2003-07-07 | アルパテック株式会社 | 過給機のサイレンサ |
DE102009051104A1 (de) | 2009-10-28 | 2011-05-05 | Mann + Hummel Gmbh | Radialverdichter |
JP5843505B2 (ja) | 2011-07-12 | 2016-01-13 | 三菱重工業株式会社 | 過給機用消音器、これを備えた過給機およびハイブリッド過給機 |
JP6008495B2 (ja) * | 2011-12-16 | 2016-10-19 | 三菱重工業株式会社 | 排気タービン過給機 |
KR102160310B1 (ko) | 2013-03-06 | 2020-09-28 | 에이비비 터보 시스템즈 아게 | 배기가스 터보차저의 소음기 |
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2013
- 2013-07-10 JP JP2013144515A patent/JP5863720B2/ja active Active
-
2014
- 2014-07-07 CN CN201480001930.7A patent/CN104487694B/zh active Active
- 2014-07-07 WO PCT/JP2014/068001 patent/WO2015005252A1/ja active Application Filing
- 2014-07-07 KR KR1020157002263A patent/KR101547092B1/ko active IP Right Grant
- 2014-07-07 EP EP14822436.3A patent/EP2868910A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5272906A (en) * | 1975-12-11 | 1977-06-18 | Bbc Brown Boveri & Cie | Suctionnside mufflers of compressors provided with a plurality of attenuating units |
JPS61200372A (ja) * | 1985-02-23 | 1986-09-04 | エム・アー・エヌ・‐ベー・ウント・ヴエー・デイーゼル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 排ガスターボチヤージヤの圧縮機の吸込側の、前案内羽根を有する消音装置 |
JPH11200969A (ja) | 1998-01-13 | 1999-07-27 | Mitsubishi Alum Co Ltd | 過給機のサイレンサ |
JP2006194161A (ja) * | 2005-01-14 | 2006-07-27 | Mitsubishi Heavy Ind Ltd | 吸気サイレンサを備えた排気ターボ過給機 |
Non-Patent Citations (1)
Title |
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See also references of EP2868910A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016138465A (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸気整流装置、これを備えたコンプレッサ |
WO2016121653A1 (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸気整流装置、これを備えたコンプレッサ |
CN107208531A (zh) * | 2015-01-26 | 2017-09-26 | 三菱重工业株式会社 | 吸气整流装置和具备该吸气整流装置的压缩机 |
Also Published As
Publication number | Publication date |
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CN104487694B (zh) | 2017-04-05 |
CN104487694A (zh) | 2015-04-01 |
KR101547092B1 (ko) | 2015-08-24 |
EP2868910A4 (en) | 2015-08-26 |
KR20150020717A (ko) | 2015-02-26 |
JP5863720B2 (ja) | 2016-02-17 |
JP2015017536A (ja) | 2015-01-29 |
EP2868910A1 (en) | 2015-05-06 |
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