DE102007009291A1 - Rotary piston engine for converting chemically bonded energy into kinetic energy, has rotor subdivided by partition axially into rotor seal segment and compression chamber segment, where partition is firmly connected with rotor housing - Google Patents
Rotary piston engine for converting chemically bonded energy into kinetic energy, has rotor subdivided by partition axially into rotor seal segment and compression chamber segment, where partition is firmly connected with rotor housing Download PDFInfo
- Publication number
- DE102007009291A1 DE102007009291A1 DE200710009291 DE102007009291A DE102007009291A1 DE 102007009291 A1 DE102007009291 A1 DE 102007009291A1 DE 200710009291 DE200710009291 DE 200710009291 DE 102007009291 A DE102007009291 A DE 102007009291A DE 102007009291 A1 DE102007009291 A1 DE 102007009291A1
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- Germany
- Prior art keywords
- rotor
- segment
- partition
- chamber segment
- sealing
- 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.)
- Withdrawn
Links
- 230000006835 compression Effects 0.000 title claims abstract description 15
- 238000007906 compression Methods 0.000 title claims abstract description 15
- 238000005192 partition Methods 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 2
- 210000000056 organ Anatomy 0.000 claims 1
- 230000002040 relaxant effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 241001136792 Alle Species 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
- F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F01C1/20—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with dissimilar tooth forms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
Bekannt
sind Verbrennungskraftmaschinen, die nach dem Prinzip der Kreiskolbenmaschine
arbeiten. Derartige Maschinen sind insbesondere in den folgenden
Offenlegungsschriften dargelegt:
Die bekannten Konzepte vermögen jedoch nicht die sich aus der rein rotatorischen Bewegung ergebenden Probleme des Gasaustausches und der Energieumsetzung zu lösen, weshalb der Wankelmotor bis zum heutigen Tag die einzige realisierte Kreiskolbenmaschine darstellt.The However, known concepts are not capable of the purely rotational movement resulting problems of gas exchange and the energy conversion, which is why the Wankel engine to this day the only realized rotary engine represents.
Der im Patentanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, daß bis zum heutigen Tag kein maschinenbautechnisch realisierbares Konzept vorliegt, mittels dessen die Anforderung an den Gasaustausch und der Energieumwandlung in Drehkolbenmotoren bewerkstelligt werden kann. Diese Probleme werden durch die im Patentanspruch 1 aufgeführten Merkmale gelöst.Of the The invention defined in claim 1 is based on the problem that to this day no machine-technically feasible Concept exists by means of which the requirement for gas exchange and the energy conversion in rotary engines can be accomplished. These problems are listed by the in claim 1 Characteristics solved.
Erreichte VorteileAchieved benefits
Die mit der Erfindung erreichten Vorteile bestehen insbesondere darin, daß durch die beschriebene Anordnung der Rotoren, deren axiale Unterteilung dieser in ein Arbeitssegment und ein Dichtsegment, die kurzwegige Gasüberleitung zwischen Kompressionskammersegment und Expansionskammersegment und die aus der Offenlegungsschrift F04C 2/18 bekannte Fluidführung durch das Innere der Rotoren eine maschinentechnisch realisierbares Konzept liefert.The particular advantages of the invention are that by the described arrangement of the rotors whose axial subdivision of these into a working segment and a sealing segment, the short-term gas transfer between the compression chamber segment and expansion chamber segment and the disclosure of the disclosure F04C 2/18 known fluid guide through the inside of the rotors provides a machine-technically feasible concept.
Eine vorteilhafte Ausgestaltung der Erfindung ist im Patentanspruch 1 angegeben.A advantageous embodiment of the invention is in claim 1 specified.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.One Embodiment of the invention is in the drawings and will be described in more detail below.
Es zeigenIt demonstrate
Es folgt die Erläuterung der Erfindung anhand der Zeichnungen nach Aufbau und ggf. auch nach Wirkungsweise der dargestellten Erfindung.It follows the explanation of the invention with reference to the drawings after construction and possibly also after operation of the illustrated invention.
Anhand
der 4 schematischen Skizzen,
- 1. In
1 ist senkrecht mittig eine gezackte Strich-Punkt-Linie vorgesehen. Diese markiert, daß der obere Ansaugtakt auf der Rotorenachse (15 ) rechts von dem unten links auf der Rotorenachse (21 ) dargestellten Arbeitstakt um ca. 22° bis ca. 50° voneinander versetzt dargestellt ist. Die korrespondierenden Rotoren (17 ) und (18 ) müssen um dieses ungefähr definierte Winkelsegment versetzt sein, s. u.. - 2. Die benötigte Verbrennungsluft wird über
die Rotorachse (
15 , Hohlwelle) über den Verdichterrotor (18 ) zwangsweise nach vorliegendem Patent F04C 2/18 eingesogen und in dem Kompressionskammersegment (11 ) verdichtet. Je nach Betriebsstoff (Benzin, Diesel, Pflanzenöl oder andere) wird die Komprimierdichte in diesem (11 ) zwischen 8 oder gar 30 und mehr bar liegen. - 3. Die vor dem Verdichterkolben (
26 ) komprimierte Luft wird wie, in3 und4 dargestellt, in den Überströmkanal (16 ) eingepreßt und in das Expansionssegment (12 ) – s.2 – übergeleitet, wo nach zeitlicher (elektronische Steuerung) bzw. festgelegter Winkelstellung des Expansionsrotors (17 ) das Betriebsmittel injiziert und gezündet bzw. unter Selbstzündung den Arbeitstakt „Zünden" in dieser Verbrennungsmaschine vollzieht. Die sowohl am Verdichterrotor (18 ) wie am Expansionsrotor (17 ) seitlich vorgesehenen Steuerscheiben (19 ) sind so mit Durchlässen zur Trennwand definiert, daß mit dem unter Pkt. 1 erläuterten Versatz der Rotoren auch der Überstömkanal von dem Verdichterrotor (1 ) zum Expansionsrotor (17 ) und dessen Expansionskammersegment (12 ) freigegeben wird. Zur besseren Überleitung der komprimierten Luft hin zum Überleitungskanal (16 ) wird der Verdichterkolben (26 ) schräg auf dem Kompressionsrotor (18 ) plaziert, damit die gesamte Luft bei fortschreitender Drehung hin zum Überströmkanal (16 ) gepreßt wird. Ein großer Vorzug der hier vorliegenden Innovation ist in der Gleichförmigkeit der Abläufe zu sehen. Im gleichen Maße, wie das Kompressionskammersegment (11 ) mit der Drehung sein Volumen verringert, wird das Volumen des Expansionskammersegmentes (12 ) vergrößert. Damit gibt es außer der Explosionsarbeit keine ungewollten Druckschläge in dieser Maschine. Zur weiteren Optimierung und gleichmäßiger verwirbelten Einbringung der Verbrennungsluft und Mischung mit dem Brennmedium ist eine beidseitige Anordnung von Verdichterrotoren links wie rechts des Expansionsrotors (17 ) denkbar. Die Einspritzarbeit wird vornehmlich im Überströmkanal (16 ) durchgeführt, um die Durchpressung der Verbrennungsluft zur Verwirbelung des Brennmediums zu nutzen. Dabei bietet sich die Anordnung einer speziellen, schraubenförmigen Verwirbelungskammer in der Trennwand zwischen den beiden Rotoren (18 ) und (17 ) an. Andererseits ist eine kurze Durchleitungsverbindung anzustreben, um Druckverluste zu minimieren. - 4. Nach Zündung des Verbrennungsgemisches im Expansionskammersegment
(
12 ) dreht sich der Expansionsrotor (17 ) um 360 Grad, um in die zuvor beschriebene Ausgangsposition zu gelangen und erneut sein Brennstoffgemisch aufzunehmen. Während der Drehung schiebt er das davor verbrannte Gas, wie in Patent F04C 2/18 vorgegeben, durch seine Hohlwelle nach außen. Dabei nutzt der Rotor im Gegensatz zur Kolbenmaschine während der Verbrennungsarbeit stets den vollen Hebelarm zwischen Drehachse und mittlerer Kolbenhöhe über dieser. Das führt zu einer deutlich besseren Umsetzung der thermischen Arbeit in mechanische Dreharbeit im Vergleich mit dem 4-Takt-Kolbenmotor. - 5. Es können alle bekannten und notwendigen Funktionen
für einen reibungslosen Arbeitsablauf dieser Antriebsmaschine
auf den beschriebenen Arbeitswellen – zusätzlich
zur Kraftabnahme einer zu betreibenden Fremdmaschine an der Abtriebsachse
(
21 ) – positioniert werden als da neben mehreren Arbeitsrotoren (17 mit18 ) zur Erzielung „mehrzylindrischer" Motoren sind: – Einspritzpumpe, (mechanisch oder Druckerzeugung für elektronisch gesteuerte Einspritzung mit Hochdruckniveu – z. B. 1500 bar) – Kühlpumpe – Ölschmierungspumpe für die zwei Wellen – Hydraulikpumpe – Drucklufterzeugung, Bremse etc.
- 1. In
1 is vertically centered a jagged dash-dot line provided. This marks that the upper intake stroke on the rotor axis (15 ) to the right of the bottom left of the rotor axis (21 ) shown by about 22 ° to about 50 ° offset from each other. The corresponding rotors (17 ) and (18 ) must be offset by this approximately defined angle segment, see below. - 2. The required combustion air is transmitted via the rotor axis (
15 , Hollow shaft) via the compressor rotor (18 ) is forcibly sucked in according to the present patent F04C 2/18 and in the compression chamber segment (11 ) compacted. Depending on the fuel (gasoline, diesel, vegetable oil or other) the compression density in this (11 ) are between 8 or even 30 and more bars. - 3. The front of the compressor piston (
26 ) compressed air will be like, in3 and4 shown in the overflow channel (16 ) and into the expansion segment (12 ) - s.2 - transferred, where after temporal (electronic control) or fixed angular position of the expansion rotor (17 ) injects and ignites the fuel and / or carries out the "ignition" operating cycle in this internal combustion engine under autoignition.18 ) as at the expansion rotor (17 ) laterally provided control discs (19 ) are defined with passages to the partition, that with the explained under point 1 offset of the rotors and the Überstömkanal of the compressor rotor (1 ) to the expansion rotor (17 ) and its expansion chamber segment (12 ) is released. For better transfer of the compressed air to the transfer channel (16 ), the compressor piston (26 ) obliquely on the compression rotor (18 ), so that the entire air as the rotation proceeds to the overflow channel (16 ) is pressed. A great advantage of this innovation is the uniformity of the processes. To the same extent as the compression chamber segment (11 ) decreases its volume with the rotation, the volume of the expansion chamber segment (12 ). In order to Apart from the explosion work, there are no unwanted pressure surges in this machine. For further optimization and uniform entangled introduction of the combustion air and mixing with the combustion medium is a two-sided arrangement of compressor rotors left and right of the expansion rotor (17 ) conceivable. The injection work is mainly in the overflow channel (16 ) performed in order to use the extrusion of the combustion air for swirling the combustion medium. In this case, the arrangement of a special helical Verwirbelungskammer in the partition wall between the two rotors (18 ) and (17 ) at. On the other hand, a short passage connection should be sought in order to minimize pressure losses. - 4. After ignition of the combustion mixture in the expansion chamber segment (
12 ) the expansion rotor (17 ) 360 degrees to get into the above-described starting position and resume its fuel mixture. During rotation, he pushes the previously burned gas, as prescribed in patent F04C 2/18, through its hollow shaft to the outside. In contrast to the piston engine, the rotor always uses the full lever between the axis of rotation and the middle piston height above it during combustion work. This leads to a much better implementation of the thermal work in mechanical turning compared to the 4-stroke piston engine. - 5. It can all known and necessary functions for a smooth workflow of this prime mover on the working waves described - in addition to the power decrease of a third party machine to be operated on the output shaft (
21 ) - be positioned as there beside several work rotors (17 With18 ) for achieving "multi-cylinder" engines are: - injection pump, (mechanical or pressure generation for electronically controlled injection with high-pressure level - eg 1500 bar) - cooling pump - oil lubrication pump for the two shafts - hydraulic pump - compressed air generation, brake etc.
Die beiden Hohlwellen wie geschlossenen Ausgangswellen bieten für derartige zusätzliche Ergänzungen genügend Verbaumöglichkeiten ohne zusätzliche Abtriebslösungen nur mittels Verlängerung der Wellen.The Both hollow shafts like closed output shafts provide for enough such additional supplements Verbaumöglichkeiten without additional output solutions only by extension of the waves.
Der
oben benannte erhöhte Verdichterdruck wird voraussichtlich
bei fortgeschrittenen Ausführungen dieser Verbrennungsmaschine
mittels eines seitlich im Rotorengehäuse (
Abschließend sei bemerkt, daß auf der Basis des benannten und vorliegenden Patents F04C 2/18 und dem hier vorgelegten entscheidende vereinfachende damit Kosten wie vor allem Energie einsparende Lösungen auch im Antriebsmaschinenbau aufgezeigt werden. Das wird zu einer deutlichen Kostensenkung in der Erstellung der Antriebsmaschinen wie beim Betrieb dieser durch deutlich reduzierten Brennstoffverbrauch führen.Finally It should be noted that on the basis of the named and present Patents F04C 2/18 and the crucial simplifying presented here thus costs as well as above all energy-saving solutions also be shown in the engine manufacturing. That becomes one Significant cost reduction in the creation of the drive machines as in the operation of this by significantly reduced fuel consumption to lead.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 000019705913 A9 [0001] DE 000019705913 A9 [0001]
- - DE 000019746071 A1 [0001] DE 000019746071 A1 [0001]
- - DE 000020180295 U1 [0001] - DE 000020180295 U1 [0001]
- - DE 102005060343 A1 [0001] - DE 102005060343 A1 [0001]
- - DE 202004014209 U1 [0001] - DE 202004014209 U1 [0001]
- - EP 000000137421 B1 [0001] EP 000000137421 B1 [0001]
- - US 000004138848 A [0001] US 000004138848 A [0001]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710009291 DE102007009291A1 (en) | 2007-02-26 | 2007-02-26 | Rotary piston engine for converting chemically bonded energy into kinetic energy, has rotor subdivided by partition axially into rotor seal segment and compression chamber segment, where partition is firmly connected with rotor housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710009291 DE102007009291A1 (en) | 2007-02-26 | 2007-02-26 | Rotary piston engine for converting chemically bonded energy into kinetic energy, has rotor subdivided by partition axially into rotor seal segment and compression chamber segment, where partition is firmly connected with rotor housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007009291A1 true DE102007009291A1 (en) | 2008-08-28 |
Family
ID=39645981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710009291 Withdrawn DE102007009291A1 (en) | 2007-02-26 | 2007-02-26 | Rotary piston engine for converting chemically bonded energy into kinetic energy, has rotor subdivided by partition axially into rotor seal segment and compression chamber segment, where partition is firmly connected with rotor housing |
Country Status (1)
Country | Link |
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DE (1) | DE102007009291A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014008985A1 (en) | 2014-06-14 | 2015-12-17 | Franz-Harro Horn | Rotary engine with working rotor and sealing rotors, several fixed pistons |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19705913A9 (en) | 1997-02-20 | Peter Dipl.-Ing. 89537 Giengen Hruschka | Peter speed turbo engine | |
US4138848A (en) | 1976-12-27 | 1979-02-13 | Bates Kenneth C | Compressor-expander apparatus |
EP0137421B1 (en) | 1983-10-10 | 1988-06-08 | Wankel, Felix, Dr. h.c. | External axis rotary piston machine |
DE19746071A1 (en) | 1997-10-17 | 1998-05-07 | Dietmar Turnau | Rotary engine with synchronised meshing gears forming combustion space |
DE20180295U1 (en) | 2001-11-08 | 2003-06-26 | Winterpacht, Hubert, 45529 Hattingen | Rotary piston combustion engines has working wheel with spokes forming air guide blades, and with combustion chamber continuously re-formed between engine components |
DE202004014209U1 (en) | 2004-09-09 | 2005-01-20 | Schramm, Detlef | Rotary piston engine has working rotor with protrusion sliding on housing wall in gas- tight manner, contrarotating auxiliary rotor, compression varied by varying induction/combustion chamber volumes |
DE102005060343A1 (en) | 2004-12-22 | 2006-07-13 | Kurt Kaiser | Rotary-piston internal combustion engine, includes two controlled seals offset along rotation channel, which open and close to permit passage of piston and compression of mixture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19705913A1 (en) | 1997-02-20 | 1998-09-03 | Peter Dipl Ing Hruschka | Peter speed turbo engine |
-
2007
- 2007-02-26 DE DE200710009291 patent/DE102007009291A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4138848A (en) | 1976-12-27 | 1979-02-13 | Bates Kenneth C | Compressor-expander apparatus |
EP0137421B1 (en) | 1983-10-10 | 1988-06-08 | Wankel, Felix, Dr. h.c. | External axis rotary piston machine |
DE19705913A9 (en) | 1997-02-20 | Peter Dipl.-Ing. 89537 Giengen Hruschka | Peter speed turbo engine | |
DE19746071A1 (en) | 1997-10-17 | 1998-05-07 | Dietmar Turnau | Rotary engine with synchronised meshing gears forming combustion space |
DE20180295U1 (en) | 2001-11-08 | 2003-06-26 | Winterpacht, Hubert, 45529 Hattingen | Rotary piston combustion engines has working wheel with spokes forming air guide blades, and with combustion chamber continuously re-formed between engine components |
DE202004014209U1 (en) | 2004-09-09 | 2005-01-20 | Schramm, Detlef | Rotary piston engine has working rotor with protrusion sliding on housing wall in gas- tight manner, contrarotating auxiliary rotor, compression varied by varying induction/combustion chamber volumes |
DE102005060343A1 (en) | 2004-12-22 | 2006-07-13 | Kurt Kaiser | Rotary-piston internal combustion engine, includes two controlled seals offset along rotation channel, which open and close to permit passage of piston and compression of mixture |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014008985A1 (en) | 2014-06-14 | 2015-12-17 | Franz-Harro Horn | Rotary engine with working rotor and sealing rotors, several fixed pistons |
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8122 | Nonbinding interest in granting licences declared | ||
8127 | New person/name/address of the applicant |
Owner name: HORN, FRANZ-HARRO, DIPL.-ING., 25881 TATING, DE Owner name: HAGGE, STEFAN, DIPL.-ING., 25852 BORDELUM, DE |
|
8139 | Disposal/non-payment of the annual fee | ||
8170 | Reinstatement of the former position | ||
8127 | New person/name/address of the applicant |
Owner name: HORN, FRANZ-HARRO, DIPL.-ING., 25881 TATING, DE |
|
8181 | Inventor (new situation) |
Inventor name: HORN, FRANZ-HARRO DIPL.-ING., 25881 TATING, DE Inventor name: HAGGE, STEFAN, DIPL.-ING., 25852 BORDELUM, DE |
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