EP0513020A1 - Fuel-injection nozzle with an overflow-oil line. - Google Patents

Fuel-injection nozzle with an overflow-oil line.

Info

Publication number
EP0513020A1
EP0513020A1 EP91901696A EP91901696A EP0513020A1 EP 0513020 A1 EP0513020 A1 EP 0513020A1 EP 91901696 A EP91901696 A EP 91901696A EP 91901696 A EP91901696 A EP 91901696A EP 0513020 A1 EP0513020 A1 EP 0513020A1
Authority
EP
European Patent Office
Prior art keywords
screw
injection nozzle
fuel injection
threaded shaft
longitudinal groove
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.)
Granted
Application number
EP91901696A
Other languages
German (de)
French (fr)
Other versions
EP0513020B1 (en
Inventor
Karl Hofmann
Werner Wagner
Peter Asslaender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0513020A1 publication Critical patent/EP0513020A1/en
Application granted granted Critical
Publication of EP0513020B1 publication Critical patent/EP0513020B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings

Definitions

  • the invention relates to a fuel injector with Leckol connection according to the preamble of the main claim.
  • a head cap with an axial blind hole in the threaded shaft and a cross hole near the head is mainly used / with which a ring with a connection nipple is pressed tightly against the nozzle holder.
  • Such a banjo bolt is made of steel by several processing operations such as turning, drilling, deburring and tempering.
  • the object of the invention is to provide a screw for connecting the collecting ring for the Leckol connection to a fuel injection nozzle, the screw of which is simple and cheap to produce.
  • the novel Leckol connection of the fuel injection nozzle according to the characterizing feature of the main claim has the advantage that the screw which allows the leak oil to the collecting ring can be produced by cold working. This manufacturing process, which is essentially reduced to cold forming, also eliminates the need for tempering due to strain hardening.
  • the arrangement of a plurality of longitudinal grooves in the threaded shaft of the screw, which run parallel or obliquely to the longitudinal axis, is particularly advantageous for a sufficient cross section for the leakage oil seal.
  • the longitudinal grooves can also be designed as flats of the threaded shaft.
  • FIG. 1 shows a part of a nozzle holder with a leak oil connection of a fuel injection nozzle in longitudinal view, partly in section
  • FIG. 2 shows a first embodiment of a cap screw of the leak oil connection in longitudinal view
  • FIG. 3 shows the cap screw according to FIG. 2 in plan view
  • FIG. 4 shows a second embodiment of a cap screw in Longitudinal section and Figure 5, the cap screw of Figure 4 in plan view ..
  • a nozzle holder 1 of a fuel injection nozzle has a channel 2 for returning the leak oil, which opens into a threaded bore 3.
  • a Leckol connection 5 is connected, which has a cap screw 10 with a threaded shaft 11 and with a head 12 and a collecting ring 14.
  • the screw 10 has several, preferably four longitudinal grooves 20 in the circumference of its threaded shaft 11, in the area of which the thread is interrupted.
  • the longitudinal grooves 20 run from the free end of the shaft 11 to close to the head 12 of the screw 10.
  • the longitudinal grooves 20 are formed as grooves 21 with a U-shaped cross section.
  • the depth of the grooves 21 is greater than the height of the thread in the shaft 11 of the screw 10, so that 11 channels for the passage of leak oil are formed between the back of the thread of the threaded bore 3 in the nozzle holder 1 and the bottom of the grooves 21 in the shaft.
  • the thread in the shaft 11 can be produced by rolling and the grooves 21 can be produced by cold forming.
  • two grooves 20 are formed in the form of flats 22 on the shaft 11 of the screw 10.
  • the thread and the flats 22 are formed by cold hammering, the die division running in the center line of the flats 22.
  • the grooves can not only run parallel to the axis of the threaded shaft 11 of the screw, but also obliquely or spirally to its axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Un injecteur de carburant comporte un raccordement au circuit de retour d'huile (5) qui présente une vis à tête (10) vissée dans un orifice fileté (3) d'un porte-injecteur (1) et comportant un canal d'admission dans la tige filetée (11) et une bague collectrice (14) enserrée entre la tête (12) de la vis à tête et le porte-injecteur (1). Le canal d'admission se présente sous la forme d'au moins une rainure longitudinale (20, 21, 22) disposée sur le pourtour de la vis (10).A fuel injector has a connection to the oil return circuit (5) which has a cap screw (10) screwed into a threaded hole (3) of an injector holder (1) and comprising an intake channel in the threaded rod (11) and a slip ring (14) clamped between the head (12) of the head screw and the injector holder (1). The intake channel is in the form of at least one longitudinal groove (20, 21, 22) arranged around the periphery of the screw (10).

Description

Kraftstoffeinspritzdüse mit Leckolanschluß Fuel injector with leak oil connection
Die Erfindung bezieht sich auf eine Kraftstoffeinspritzdüse mit Leckolanschluß nach dem Oberbegriff des Hauptanspruchs.The invention relates to a fuel injector with Leckol connection according to the preamble of the main claim.
Für die Leckölrückführung am Düsenhalter von Einspritzdüsen wird überwiegend eine Kopfsehraube mit einer axialen Sackbohrung im Gewindeschaft und einer Querbohrung nahe dem Kopf verwendet/ mit der ein λuffangring mit Anschlußnippel dicht gegen den Düsenhalter gepreßt wird. Eine derartige Hohlschraube wird aus Stahl durch mehrere Bearbeitungsvorgänge wie Drehen, Bohren, Entgraten und Vergüten hergestellt.For the leakage oil return on the nozzle holder of injection nozzles, a head cap with an axial blind hole in the threaded shaft and a cross hole near the head is mainly used / with which a ring with a connection nipple is pressed tightly against the nozzle holder. Such a banjo bolt is made of steel by several processing operations such as turning, drilling, deburring and tempering.
Aufgabe der Erfindung ist es, für den Leckolanschluß an einer Kraftstoffeinspritzdüse eine Schraube zum Anschließen des Auffang¬ ringes zu schaffen, deren Herstellung einfach und billig ist.The object of the invention is to provide a screw for connecting the collecting ring for the Leckol connection to a fuel injection nozzle, the screw of which is simple and cheap to produce.
Der neuartige Leckolanschluß der Kraftstoffeinspritzdüse nach dem kennzeichnenden Merkmal des Hauptanspruchs hat den Vorteil, daß dessen das Lecköl zum Auffangring durchlassende Schraube durch Kaltverformen herstellbar ist. Durch dieses im wesentlichen auf Kaltumformung reduzierte Herstellverfahren kann durch die Kaltverfestigung auch das Vergüten entfallen. Besonders vorteilhaft für einen ausreichenden Querschnitt für den Leckölabschluß ist die Anordnung mehrerer Längsrillen im Gewindeschaft der Schraube, die parallel oder schräg zur Längsachse verlaufen. Vorteilhafterweise können die Längsrillen auch als Abflachungen des Gewindeschaftes ausgebildet sein.The novel Leckol connection of the fuel injection nozzle according to the characterizing feature of the main claim has the advantage that the screw which allows the leak oil to the collecting ring can be produced by cold working. This manufacturing process, which is essentially reduced to cold forming, also eliminates the need for tempering due to strain hardening. The arrangement of a plurality of longitudinal grooves in the threaded shaft of the screw, which run parallel or obliquely to the longitudinal axis, is particularly advantageous for a sufficient cross section for the leakage oil seal. Advantageously, the longitudinal grooves can also be designed as flats of the threaded shaft.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen Figur 1 einen Teil eines Düsenhalters mit Leckolanschluß einer Kraftstoffein¬ spritzdüse in Längsansicht teilweise im Schnitt, Figur 2 ein erstes Ausführungsbeispiel einer Kopfschraube des Leckölanschlusses in Längsansicht, Figur 3 die Kopfschraube nach Figur 2 in Draufsicht, Figur 4 ein zweites Ausführungsbeispiel einer Kopfschraube im Längsschnitt und Figur 5 die Kopfschraube nach Figur 4 in Draufsicht..Embodiments of the invention are shown in the drawing and are described in more detail below. 1 shows a part of a nozzle holder with a leak oil connection of a fuel injection nozzle in longitudinal view, partly in section, FIG. 2 shows a first embodiment of a cap screw of the leak oil connection in longitudinal view, FIG. 3 shows the cap screw according to FIG. 2 in plan view, and FIG. 4 shows a second embodiment of a cap screw in Longitudinal section and Figure 5, the cap screw of Figure 4 in plan view ..
Ein Düsenhalter 1 einer Kraftstoffeinspritzdüse hat zum Rückführen des Lecköls einen Kanal 2, der in eine Gewindebohrung 3 mündet. Mit dieser Gewindebohrung 3 ist ein Leckolanschluß 5 verbunden, der eine Kopfschraube 10 mit einem Gewindeschaft 11 und mit einem Kopf 12 und einen Auffangring 14 aufweist. Der Auffangring 14, der eine innere Ringnut 15 und einen Anschlußnippel 16 hat, ist auf dem Gewindeschaft 11 der Schraube 10 aufgefädelt und wird von dem Kopf 12 der Schraube 10 unter Zwischenlage zweier Dichtungsringe 17 gegen den Düsenhalter 1 gepreßt.A nozzle holder 1 of a fuel injection nozzle has a channel 2 for returning the leak oil, which opens into a threaded bore 3. With this threaded bore 3, a Leckol connection 5 is connected, which has a cap screw 10 with a threaded shaft 11 and with a head 12 and a collecting ring 14. The collecting ring 14, which has an inner annular groove 15 and a connecting nipple 16, is threaded onto the threaded shaft 11 of the screw 10 and is pressed against the nozzle holder 1 by the head 12 of the screw 10 with the interposition of two sealing rings 17.
Zum Rückströmen des Lecköls aus dem Kanal 2 des Düsenhalters 1 in die Hingnut 15 des Auffangringes 14 und in den Anschlußnippel 16 hat die Schraube 10 im Umfang ihres GewindeSchaftes 11 mehrere, vorzugsweise vier Längsrillen 20, in deren Bereich das Gewinde unterbrochen ist. Die Längsrillen 20 verlaufen vom freien Stirnende des Schaftes 11 bis nahe zum Kopf 12 der Schraube 10. Beim Ausführungsbeispiel nach Figur 2 und 3 sind die Längsrillen 20 als Nuten 21 mit U-förmigem Querschnitt ausgebildet. Die Tiefe der Nuten 21 ist größer als die HÖhe des Gewindes im Schaft 11 der Schraube 10, so daß zwischen dem Rücken des Gewindes der Gewindebohrung 3 im Düsenhalter 1 und dem Grund der Nuten 21 im Schaft 11 Kanäle für den Durchtritt von Lecköl gebildet werden. Das Gewinde im Schaft 11 kann durch Rollen und die Nuten 21 können durch Kaltumformung hergestellt werden.For backflow of the leak oil from the channel 2 of the nozzle holder 1 into the hanging groove 15 of the collecting ring 14 and into the connecting nipple 16, the screw 10 has several, preferably four longitudinal grooves 20 in the circumference of its threaded shaft 11, in the area of which the thread is interrupted. The longitudinal grooves 20 run from the free end of the shaft 11 to close to the head 12 of the screw 10. In the embodiment of Figures 2 and 3, the longitudinal grooves 20 are formed as grooves 21 with a U-shaped cross section. The depth of the grooves 21 is greater than the height of the thread in the shaft 11 of the screw 10, so that 11 channels for the passage of leak oil are formed between the back of the thread of the threaded bore 3 in the nozzle holder 1 and the bottom of the grooves 21 in the shaft. The thread in the shaft 11 can be produced by rolling and the grooves 21 can be produced by cold forming.
Beim Ausfuhrungsbeispiel nach Figur 4 und 5 sind zwei Rillen 20 in Form von Abflachungen 22 am Schaft 11 der Schraube 10 gebildet. Das Gewinde und die Abflachungen 22 werden durch Kaltschlagen geformt, wobei die Gesenkteilung in der Mittellinie der Abflachungen 22 verläuft.In the exemplary embodiment according to FIGS. 4 and 5, two grooves 20 are formed in the form of flats 22 on the shaft 11 of the screw 10. The thread and the flats 22 are formed by cold hammering, the die division running in the center line of the flats 22.
Ergänzend wird darauf hingewiesen, daß die Rillen nicht nur parallel zur Achse des Gewindeschaftes 11 der Schraube verlaufen können, sondern auch schräg bzw. spiralförmig zu dessen Achse. In addition, it is pointed out that the grooves can not only run parallel to the axis of the threaded shaft 11 of the screw, but also obliquely or spirally to its axis.

Claims

- k -Ansprüche - k claims
1. Kraftstoffeinspritzdüse mit Leckolanschluß, der eine in eine Gewindebohrung eines Düsenhalters eingeschraubte Kopfschraube mit einem Durchlaßkanal im Gewindeschaft und einen zwischen dem Kopf der Kopfschraube und dem Düsenhalter eingespannten Auffangring aufweist, dadurch gekennzeichnet, daß der Durchlaßkanal durch mindestens eine im Umfang der Schraube (10) verlaufende Längsrille (20, 21, 22) gebildet wird.1. Fuel injection nozzle with Leckol connection, which has a head screw screwed into a threaded bore of a nozzle holder with a passage channel in the threaded shaft and a catch ring clamped between the head of the head screw and the nozzle holder, characterized in that the passage channel has at least one circumference of the screw (10) extending longitudinal groove (20, 21, 22) is formed.
2. Kraftstoffeinspritzdüse nach Anspruch 1, dadurch gekennzeichnet, daß die Tiefe der Längsrille (20, 21, 22) größer ist als die Höhe des Gewindes des Schaftes (11) der Schraube (10).2. Fuel injection nozzle according to claim 1, characterized in that the depth of the longitudinal groove (20, 21, 22) is greater than the height of the thread of the shaft (11) of the screw (10).
3. Kraftstoffeinspritzdüse nach Anspruch 2, dadurch gekennzeichnet, daß die Längsrille (21, 22, 23) parallel zur Achse des Gewindeschaftes (11) der Schraube (10) verläuft.3. Fuel injection nozzle according to claim 2, characterized in that the longitudinal groove (21, 22, 23) runs parallel to the axis of the threaded shaft (11) of the screw (10).
4. Kraftstoffeinspritzdüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß im Umfang des Gewindeschaftes (11) der Schraube (10) die Längsrille in Form von einer Nut (21) eingeschlagen ist. 4. Fuel injection nozzle according to one of claims 1 to 3, characterized in that in the circumference of the threaded shaft (11) of the screw (10), the longitudinal groove is made in the form of a groove (21).
5. Kraftstoffeinspritzdüse nach Anspruch 4, dadurch gekennzeichnet, daß die Nut einen U-förmigen Querschnitt hat.5. Fuel injection nozzle according to claim 4, characterized in that the groove has a U-shaped cross section.
6. Kraftstoffeinspritzdüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Längsrille als Abflachungen (27) im Gewindeschaft (11) der Schraube (10) ausgebildet ist.6. Fuel injection nozzle according to one of claims 1 to 3, characterized in that the longitudinal groove is formed as flats (27) in the threaded shaft (11) of the screw (10).
7. Kraftstoffeinspritzdüse nach Anspruch 6, dadurch gekennzeichnet, daß am Gewindeschaft (11) der Schraube (10) zwei diametral einander gegenüberliegende Abflachungen (22) angeordnet sind. 7. Fuel injection nozzle according to claim 6, characterized in that on the threaded shaft (11) of the screw (10) two diametrically opposed flats (22) are arranged.
EP91901696A 1990-02-03 1991-01-17 Fuel-injection nozzle with an overflow-oil line Expired - Lifetime EP0513020B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9001194U DE9001194U1 (en) 1990-02-03 1990-02-03
DE9001194U 1990-02-03
PCT/DE1991/000030 WO1991011606A1 (en) 1990-02-03 1991-01-17 Fuel-injection nozzle with an overflow-oil line

Publications (2)

Publication Number Publication Date
EP0513020A1 true EP0513020A1 (en) 1992-11-19
EP0513020B1 EP0513020B1 (en) 1994-09-14

Family

ID=6850625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901696A Expired - Lifetime EP0513020B1 (en) 1990-02-03 1991-01-17 Fuel-injection nozzle with an overflow-oil line

Country Status (5)

Country Link
EP (1) EP0513020B1 (en)
JP (1) JP2851425B2 (en)
BR (1) BR9105979A (en)
DE (2) DE9001194U1 (en)
WO (1) WO1991011606A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201353B4 (en) * 2002-01-16 2004-04-08 Daimlerchrysler Ag High-pressure connection for a fuel injection system for internal combustion engines
CN108940626A (en) * 2018-09-05 2018-12-07 红塔烟草(集团)有限责任公司 A kind of anti-overflow leakage device of nozzle
CN111830410B (en) * 2020-07-24 2022-11-29 上海外高桥造船有限公司 Oil head test fixing and oil collecting device of diesel generating set
USD1023736S1 (en) 2022-10-27 2024-04-23 Fleece Performance Engineering, Inc. Bolt

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1521875A (en) * 1977-03-08 1978-08-16 Zuev A Fluid conduit apparatus and a method of making same
JPS5752376Y2 (en) * 1979-02-26 1982-11-13
DE8104261U1 (en) * 1981-02-17 1981-08-06 Robert Bosch Gmbh, 7000 Stuttgart LIQUID-COOLED FUEL INJECTION NOZZLE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9111606A1 *

Also Published As

Publication number Publication date
JPH05504389A (en) 1993-07-08
EP0513020B1 (en) 1994-09-14
WO1991011606A1 (en) 1991-08-08
DE59102948D1 (en) 1994-10-20
BR9105979A (en) 1992-11-10
DE9001194U1 (en) 1991-05-29
JP2851425B2 (en) 1999-01-27

Similar Documents

Publication Publication Date Title
EP0152763B1 (en) Shell sealing for separating a cylindrical body from a bore containing the same
EP0461212B1 (en) Electrically controlled fuel injection pump for internal combustion engines, especially pump nozzle
DE4239173C1 (en) Cylinder-head for fuel-injection engine - has pressure pipe passing through clamping screw and with union at protruding end for injection pipe
EP1446571A1 (en) Fuel injection valve for internal combustion engines
DE19523243A1 (en) Fuel injection valve for internal combustion engines
DE19709170C2 (en) Sealing for reciprocating machine parts, especially valve stem seals
EP0513020A1 (en) Fuel-injection nozzle with an overflow-oil line.
DE4427717C1 (en) High pressure conduit connection for nozzle holder of fuel injection valve on IC engine cylinder head
EP1241348B1 (en) High pressure connection for fuel injection system
EP0387504A1 (en) Fuel injection nozzle for internal combustion engines
EP0894194B1 (en) Injection device
DE19609218A1 (en) Fuel injection valve for internal combustion engines
DE2125524C3 (en) Leak fuel lock in a reciprocating fuel injection pump for internal combustion engines
DE4408245A1 (en) Injection nozzle for internal combustion engines
EP1042609B1 (en) Fuel injection valve for internal combustion engines
DE2926382A1 (en) FUEL INJECTION DEVICE WITH AN INJECTION NOZZLE
DE2930499A1 (en) Fuel injection pump for diesel engine - has annular groove round discharge valve seat to reduce cavitation in fuel
DE4136756A1 (en) FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
EP0716226A2 (en) Fuel injection valve for internal combustion engines
DE2244427A1 (en) INJECTION VALVE FOR DIESEL ENGINES
EP0754854A2 (en) Injection valve for compression ignition engines
EP0826878B1 (en) Fuel injector for internal combustion engines
DE2943744A1 (en) FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
DE883816C (en) Arrangement in an injection device of an internal combustion engine, especially for motor vehicles
CH678216A5 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19920702

17Q First examination report despatched

Effective date: 19931005

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59102948

Country of ref document: DE

Date of ref document: 19941020

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940923

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050117

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20080301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100125

Year of fee payment: 20

Ref country code: FR

Payment date: 20100209

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100324

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20110116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110117