DE102006020334B4 - filter silencer - Google Patents
filter silencer Download PDFInfo
- Publication number
- DE102006020334B4 DE102006020334B4 DE102006020334A DE102006020334A DE102006020334B4 DE 102006020334 B4 DE102006020334 B4 DE 102006020334B4 DE 102006020334 A DE102006020334 A DE 102006020334A DE 102006020334 A DE102006020334 A DE 102006020334A DE 102006020334 B4 DE102006020334 B4 DE 102006020334B4
- Authority
- DE
- Germany
- Prior art keywords
- damping element
- compressor
- filter
- perforated plate
- filter silencer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 23
- 238000013016 damping Methods 0.000 claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
Classifications
-
- 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
- F02M35/14—Combined air cleaners and silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- F02M35/02—Air cleaners
- F02M35/024—Air cleaners using filters, e.g. moistened
- F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
- F02M35/02483—Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- 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
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
Landscapes
- 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)
- Exhaust Silencers (AREA)
- Supercharger (AREA)
Abstract
Filterschalldämpfer (20) auf der Ansaugseite eines Verdichters eines Abgasturboladers, mit einem vorzugsweise zylindrischen Schalldämpfergehäuse aus einer Front- (1) und einer mit dem Verdichter verbindbaren Rückwand (2), die einen außen liegenden Zylindermantel (4) aus einem Lochblech abschließen und mit mehreren im Innenraum des Schalldämpfergehäuses angeordneten ringförmigen Dämpfungselementen; dadurch gekennzeichnet, dass die ringförmigen Dämpfungselemente in Form mindestens eines Außendämpfungselements (5) und mindestens eines Innendämpfungselementes (6), die koaxial zueinander und voneinander beabstandet angeordnet sind und einen im Wesentlichen zwischen ihnen koaxial und labyrinthartig verlaufenden Strömungskanal (21) unter Einbeziehung der Front- (1) und Rückwand (2) für in das Schalldämpfergehäuse einströmende Frischluft ausbilden, ausgeführt sind, so dass die Frischluft mindestens teilweise um das Außendämpfungselement (5) herum zum Verdichter geführt wird.Filter silencer (20) on the intake side of a compressor of an exhaust gas turbocharger, with a preferably cylindrical muffler housing of a front (1) and a connectable to the compressor rear wall (2) having an outer Complete cylinder jacket (4) from a perforated plate and with several in the interior arranged the muffler housing annular Damping elements; characterized in that the annular damping elements in the form at least an outer damping element (5) and at least one internal damping element (6) arranged coaxially with each other and spaced apart are essentially coaxial and labyrinthine between them extending flow channel (21) including the front (1) and rear (2) for fresh air flowing into the muffler housing train, executed are, so that the fresh air at least partially around the outer damping element (5) around to the compressor becomes.
Description
Die Erfindung betrifft einen Filterschalldämpfer auf der Ansaugseite eines Verdichters eines Abgasturboladers gemäß dem Oberbegriff von Anspruch 1.The The invention relates to a filter silencer on the suction side of a Compressor of an exhaust gas turbocharger according to the preamble of claim 1.
Ein Bestandteil der zur Aufladung von Brennkraftmaschinen, insbesondere von Großdieselmotoren genutzten Abgasturbolader, ist der Verdichter, der bei der Erfüllung seiner Funktion den wesentlichen Schallpegel des Abgasturboladers emittiert. Deshalb ist es notwendig, diesen Schallpegel des Verdichteransaugens mittels wirksamer Filterschalldämpfer zu reduzieren.One Component of the charging of internal combustion engines, in particular of large diesel engines used exhaust gas turbocharger, is the compressor, in the fulfillment of his Function emitted the significant sound level of the exhaust gas turbocharger. Therefore it is necessary to use this sound level of compressor suction by means of effective filter silencer to reduce.
Filterschalldämpfer dieser Art werden beispielsweise auf der Ansaugseite eines Verdichters eingesetzt, der Verbrennungsluft komprimiert und einer Brennkraftmaschine zuführt. Angetrieben wird ein derartiger Verdichter von der Abgasturbine eines Abgasturboladers.Filter silencer this Type are used for example on the suction side of a compressor, the combustion air is compressed and fed to an internal combustion engine. Driven becomes such a compressor of the exhaust gas turbine of an exhaust gas turbocharger.
Davon abgesehen müssen aber auch die optimalen Parameter des Verdichters erreicht werden, wozu der Druckverlust der Verdichteransaugung minimiert und eine möglichst günstige Geschwindigkeitsverteilung der Ansaugluft im Leitradeintritt des Verdichters sichergestellt werden muss.From that apart from that but also the optimal parameters of the compressor can be achieved, including minimizes the pressure loss of the compressor suction and a possible favorable Velocity distribution of the intake air in the stator inlet of the compressor must be ensured.
Diese Forderungen müssen auch bei der Schaffung eines wirksamen Schalldämpfers berücksichtigt werden, der bei Abgasturboladern üblicherweise mit einer Filtereinlage versehen ist und das Reinigen der Ansaugluft sicherstellt.These Demands must also be considered in the creation of an effective silencer at Exhaust gas turbochargers usually provided with a filter insert and the cleaning of the intake air ensures.
Aus
der
Aus
der
Die
Offenlegungsschrift
Bei diesen bekannten Filterschalldämpfern ist jedoch die Teileanzahl hoch und ein unerwünschter Druckverlust der Verdichteransaugung zu verzeichnen.at this known filter mufflers is however, the number of parts high and an undesirable pressure loss of the compressor suction to record.
Die vorliegende Erfindung bezweckt, all diese Nachteile zu beseitigen. Es ist deshalb Aufgabe der Erfindung, einen Filterschalldämpfer der eingangs genannten Art zu schaffen, bei dem die Teileanzahl vergleichsweise deutlich verringert ist, bei dem vergleichsweise sehr niedrige Druckverluste der Verdichteransaugluft erzielt werden, das Geschwindigkeitsfeld der Ansaugluft in der Austrittsöffnung des Filterschalldämpfers vergleichmäßigt ist und auch eine befriedigende Senkung des Schallpegels des Verdichters erzielt wird.The The present invention aims to overcome all these disadvantages. It is therefore an object of the invention to provide a filter muffler to provide the aforementioned type, in which the number of parts comparatively is significantly reduced, with the comparatively very low pressure losses the compressor intake air can be achieved, the speed field the intake air in the outlet opening of the filter silencer is evened and also a satisfactory reduction in the sound level of the compressor is achieved.
Erfindungsgemäß wird diese Aufgabe durch einen Filterschalldämpfer gemäß Anspruch 1 gelöst.According to the invention this Problem solved by a filter muffler according to claim 1.
Dadurch, dass bei einem Filterschalldämpfer die ringförmigen Dämpfungselemente in Form mind. eines Außendämpfungselementes und mind. eines Innendämpfungselementes, die koaxial zueinander und voneinander beabstandet angeordnet sind, und einen im Wesentlichen zwischen den Dämpfungselementen koaxial und labyrinthartig verlaufenden Strömungskanal unter Einbeziehung der Front- und Rückwand für die senkrecht zur Achse des Schalldämpfergehäuses durch den Zylindermantel des Gehäuses einströmende Frischluft ausbilden, ausgeführt sind, so dass die Frischluftmindestens um das Außendämpfungselement herum zum Verdichter geführt wird, kann eine Geometrie des Kanals, durch den die Ansaugluft in den Verdichter strömt, eingestellt werden, die einen sehr niedrigen. Druckverlust sicherstellt und vergleichsweise eine große Freiheit bei der Wahl der Materialstärke/-dicke von Front- und Rückwand, der äußeren lochblechförmigen Zylinderwand des Gehäuses, sowie der Lochbleche für das Außen- und Innendämpfungselement bietet, um eine ausreichende Steifheit des gesamten Gehäuses des Filterschalldämpfers zu erreichen.Thereby, that in a filter silencer the annular damping elements in the form of at least one outer damping element and at least one internal damping element, which are arranged coaxially with each other and spaced from each other, and a substantially coaxial between the damping elements and labyrinthine flow channel including the front and rear wall for perpendicular to the axis of the Through the silencer housing the cylinder jacket of the housing incoming Form fresh air, executed so that the fresh air is passed around the outer cushioning element at least to the compressor, can be a geometry of the channel through which the intake air in the Compressor flows, be set, which is a very low. Ensures pressure loss and comparatively a big one Freedom in the choice of material thickness / thickness of front and back wall, the outer perforated plate-shaped cylinder wall of the housing, as well as the perforated plates for the outside and inner damping element provides sufficient stiffness to the entire body of the filter muffler to reach.
Die abhängigen Ansprüche betreffen eine vorteilhafte Ausgestaltung der Erfindung.The dependent claims relate to an advantageous embodiment of the invention.
Die Erfindung wird nachfolgend anhand schematischer Darstellungen eines Ausführungsbeispieles in der Zeichnung erläutert. Es zeigen:The invention is described below with reference to schematic representations of a Ausführungsbei game explained in the drawing. Show it:
Um
die Schallwellen aus dem Verdichter zu dämpfen, sind im Gehäuse mehrere,
im vorliegenden Ausführungsbeispiel
Dazu
ist das Innendämpfungselement
Selbstverständlich ist
auch denkbar, dass das Außendämpfungselement
Zur
Erhöhung
der Steifheit des erfindungsgemäßen Filterschalldämpfers
Die
Dämpfungselemente
bestehen in der Regel aus einem Tragteil in Form eines Lochblechs und
einem Dämpfungsteil
aus dämpfendem
Material. Dazu ist das Außen-
Des
Weiteren ist der Zylindermantel
Die
angesaugte Luft strömt
somit entlang des Pfeils S (siehe
D.
h., die Ansaugluft strömt
radial durch die Filterauflage
Wobei
auch eine Ausführungsvariante
denkbar ist bei der die. Ansaugluft axial durch eine aus Lochblech
bestehende Frontwand
Wegen
des vergleichsweise langen, labyrinthartigen Strömungskanals
Aus
den vorangeschilderten Gründen
ergibt sich auch ein weiterer Vorteil dadurch, dass die Lochfläche jeweils
in einem gewünschten
Verhältnis
zur gesamten Fläche
des jeweiligen Lochbleches
Bei
dem verwendeten Material für
die Dämpfungsmasse
Des
Weiteren kann der Filterschalldämpfer
Claims (7)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006020334A DE102006020334B4 (en) | 2006-04-28 | 2006-04-28 | filter silencer |
KR1020070017430A KR101178961B1 (en) | 2006-04-28 | 2007-02-21 | Filter sound absorber |
FI20070173A FI122619B (en) | 2006-04-28 | 2007-02-28 | filter silencer |
JP2007060399A JP2007298027A (en) | 2006-04-28 | 2007-03-09 | Filter muffler |
CN2007101009484A CN101063458B (en) | 2006-04-28 | 2007-04-28 | Filtering silencer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006020334A DE102006020334B4 (en) | 2006-04-28 | 2006-04-28 | filter silencer |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006020334A1 DE102006020334A1 (en) | 2007-10-31 |
DE102006020334B4 true DE102006020334B4 (en) | 2008-07-10 |
Family
ID=37832215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006020334A Active DE102006020334B4 (en) | 2006-04-28 | 2006-04-28 | filter silencer |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2007298027A (en) |
KR (1) | KR101178961B1 (en) |
CN (1) | CN101063458B (en) |
DE (1) | DE102006020334B4 (en) |
FI (1) | FI122619B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010012541U1 (en) * | 2010-09-13 | 2011-12-15 | Aerzener Maschinenfabrik Gmbh | Sound-absorbing suction cup |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009037056A1 (en) * | 2009-08-13 | 2011-02-17 | Poroson Gmbh | Air filter, particularly for intake system of internal combustion engine, comprises housing forming cavity, which has filter material, and sound proofing unit, which has perforated wall |
DE102010028763B4 (en) * | 2010-05-07 | 2015-04-02 | Man Diesel & Turbo Se | Silencer for a turbocompressor and method for laying a silencer |
DE102010038634A1 (en) | 2010-07-29 | 2012-02-02 | Poroson Gmbh | Air filter for suction system of internal combustion engine of vehicle, has sound damping device comprising circumferential wall within which sound damping element is arranged, where sound damping element runs in axis direction of wall |
CN102221018B (en) * | 2011-06-30 | 2013-06-12 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
US9617958B2 (en) * | 2013-12-09 | 2017-04-11 | Dayco Ip Holdings, Llc | Noise attenuation unit for engine systems |
DE102016100140A1 (en) * | 2016-01-05 | 2017-07-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Silencer for a compressed air system of a vehicle, in particular a commercial vehicle |
CN106640315A (en) * | 2017-02-21 | 2017-05-10 | 太仓市夏米粒信息技术有限公司 | Automobile exhaust pipe with good silencing function |
DE102017107599A1 (en) | 2017-04-10 | 2018-10-11 | Gardner Denver Deutschland Gmbh | Pulsation silencer for compressors |
DE102017107601B4 (en) | 2017-04-10 | 2019-11-07 | Gardner Denver Deutschland Gmbh | Method for controlling a screw compressor |
DE102017107602B3 (en) * | 2017-04-10 | 2018-09-20 | Gardner Denver Deutschland Gmbh | Compressor system with internal air-water cooling |
DE202018000744U1 (en) * | 2017-04-21 | 2018-03-07 | Mann+Hummel Gmbh | Air filter with low pressure loss |
DE102018102237A1 (en) * | 2018-02-01 | 2019-08-01 | Man Energy Solutions Se | Silencer and compressor |
DE102020129993A1 (en) | 2020-11-13 | 2022-05-19 | Otto Egelhof Gmbh & Co. Kg | Switching valve and valve arrangement with such a switching valve for controlling a mass flow |
CN113107724B (en) * | 2021-04-30 | 2022-09-16 | 东风汽车集团股份有限公司 | Air filter structure of air inlet system |
CN114000964B (en) * | 2021-10-27 | 2022-10-04 | 湖南弘辉科技有限公司 | Noise reduction device of ship engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2305178A1 (en) * | 1973-02-02 | 1974-08-08 | Kloeckner Humboldt Deutz Ag | AIR FILTER FOR A COMBUSTION ENGINE |
WO1996001941A1 (en) * | 1994-07-12 | 1996-01-25 | Walker Robert A Jr | Combination in-line air-filter/air-oil separator/air-silencer with preseparator |
EP0574605B1 (en) * | 1992-06-17 | 1996-11-20 | Asea Brown Boveri Ag | Filter-silencer |
DE19818873A1 (en) * | 1998-04-28 | 1999-11-11 | Man B & W Diesel Ag | Silencer for large high-power diesel internal combustion engine |
DE19514990B4 (en) * | 1995-04-24 | 2005-06-30 | Abb Turbo Systems Ag | filter silencer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4204586A (en) * | 1975-12-11 | 1980-05-27 | Bbc Brown Boveri & Company Limited | Silencer on the intake side of a compressor with assembly of axially spaced annular sound-damping elements |
JPS6034771Y2 (en) * | 1976-09-24 | 1985-10-16 | 石川島播磨重工業株式会社 | Suction silencer for turbocharger |
DE4137465C2 (en) | 1991-11-14 | 1993-12-02 | Licentia Gmbh | One-sided attachment of a stator of a brushless DC motor to a housing part |
GB2364547B (en) * | 2000-05-05 | 2004-08-18 | Nelson Burgess Ltd | Air intake silencer |
-
2006
- 2006-04-28 DE DE102006020334A patent/DE102006020334B4/en active Active
-
2007
- 2007-02-21 KR KR1020070017430A patent/KR101178961B1/en active IP Right Grant
- 2007-02-28 FI FI20070173A patent/FI122619B/en not_active IP Right Cessation
- 2007-03-09 JP JP2007060399A patent/JP2007298027A/en active Pending
- 2007-04-28 CN CN2007101009484A patent/CN101063458B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2305178A1 (en) * | 1973-02-02 | 1974-08-08 | Kloeckner Humboldt Deutz Ag | AIR FILTER FOR A COMBUSTION ENGINE |
EP0574605B1 (en) * | 1992-06-17 | 1996-11-20 | Asea Brown Boveri Ag | Filter-silencer |
WO1996001941A1 (en) * | 1994-07-12 | 1996-01-25 | Walker Robert A Jr | Combination in-line air-filter/air-oil separator/air-silencer with preseparator |
DE19514990B4 (en) * | 1995-04-24 | 2005-06-30 | Abb Turbo Systems Ag | filter silencer |
DE19818873A1 (en) * | 1998-04-28 | 1999-11-11 | Man B & W Diesel Ag | Silencer for large high-power diesel internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010012541U1 (en) * | 2010-09-13 | 2011-12-15 | Aerzener Maschinenfabrik Gmbh | Sound-absorbing suction cup |
Also Published As
Publication number | Publication date |
---|---|
FI122619B (en) | 2012-04-30 |
KR101178961B1 (en) | 2012-08-31 |
DE102006020334A1 (en) | 2007-10-31 |
JP2007298027A (en) | 2007-11-15 |
FI20070173A (en) | 2007-10-29 |
CN101063458B (en) | 2010-09-01 |
KR20070106388A (en) | 2007-11-01 |
CN101063458A (en) | 2007-10-31 |
FI20070173A0 (en) | 2007-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MAN DIESEL & TURBO SE, 86153 AUGSBURG, DE |
|
R081 | Change of applicant/patentee |
Owner name: MAN ENERGY SOLUTIONS SE, DE Free format text: FORMER OWNER: MAN DIESEL & TURBO SE, 86153 AUGSBURG, DE |
|
R084 | Declaration of willingness to licence |