EP1482157A1 - Unterkurbelgehäuse einer Brennkraftmaschine - Google Patents

Unterkurbelgehäuse einer Brennkraftmaschine Download PDF

Info

Publication number
EP1482157A1
EP1482157A1 EP04253155A EP04253155A EP1482157A1 EP 1482157 A1 EP1482157 A1 EP 1482157A1 EP 04253155 A EP04253155 A EP 04253155A EP 04253155 A EP04253155 A EP 04253155A EP 1482157 A1 EP1482157 A1 EP 1482157A1
Authority
EP
European Patent Office
Prior art keywords
supporting
cross member
lower casing
cross
crankshaft
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
EP04253155A
Other languages
English (en)
French (fr)
Other versions
EP1482157B1 (de
Inventor
Azmi c/o Yamaha Engine Developments Co.Ltd Osman
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.)
Petroliam Nasional Bhd Petronas
Original Assignee
Petroliam Nasional Bhd Petronas
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 Petroliam Nasional Bhd Petronas filed Critical Petroliam Nasional Bhd Petronas
Priority to EP08001889A priority Critical patent/EP1911956A3/de
Publication of EP1482157A1 publication Critical patent/EP1482157A1/de
Application granted granted Critical
Publication of EP1482157B1 publication Critical patent/EP1482157B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron

Definitions

  • This invention relates to a lower casing of an engine crankcase.
  • it is formed through aluminum casting by using a supporting member for supporting a crankshaft as an insert member.
  • a conventional lower casing of the engine crankcase is disclosed in JP-A-H10-331715.
  • the lower casing of the crankcase disclosed in the above publication comprises a pair of left and right aluminum side members extending along a crankshaft and disposed on the left and right thereof, and a laterally extending cross member provided between the side members and formed with a semicircular supporting recess on its top surface for the crankshaft to be fitted in and supported at the lower half of its journal.
  • the cross member comprises an aluminum cross member body provided between the side members, and a cast-iron supporting member formed with the supporting recess on its top surface and built in the cross member body while leaving the top surface, and the side members and the cross member body are formed together through aluminum casting by using the supporting member as an insert member. Since the supporting member is made of cast iron as described, its strength of supporting the crankshaft is reliably secured.
  • Methods of casting the lower casing of the crankcase described above include the following.
  • a mold for the lower casing is formed with the supporting member as an insert member disposed in position.
  • liquid aluminum is poured into an inner mold of the mold for one of the side members, that is, one of inner molds for the side members.
  • the liquid aluminum flows along inside of an inner mold for the cross member body longitudinally from the inner mold for one of the side members toward the inner mold for the other side member. Filling the inside of the mold with the liquid aluminum in such a way as described forms the lower casing, with the supporting member built in the cross member body.
  • a longitudinal midsection of the cross member body has a top surface formed with a recess corresponding to the supporting recess formed on the top surface of the supporting member.
  • the midsection of the cross member body therefore, tends to become smaller in cross-sectional area than longitudinal ends thereof.
  • an object of examples of this invention is to prevent casting defects from occurring in casting the lower casing of the crankcase for supporting the crankshaft and to maintain good strength of the lower casing supporting the crankshaft.
  • a lower casing of an engine crankcase comprising: a pair of left and right aluminum side members 11, 12 extending along a crankshaft 5 and disposed on the left and right thereof; and a laterally extending cross member 13 provided between the side members 11, 12, the cross member 13 including: an aluminum cross member body 14 provided between the side members 11, 12; and a cast-iron supporting member 17 formed with a semicircular supporting recess 15 on its top surface 16 for the crankshaft 5 to be fitted in at the lower half of its journal 4, and built in the cross member body 14 while leaving the top surface 16, the side members 11, 12 and the cross member body 14 being formed together through aluminum casting by using the supporting member 17 as an insert member, in which a notch 23 is formed at a lower end of the supporting member 17 below the supporting recess 15.
  • the notch 23 has a ceiling 24 formed in an arcuate protrusion approximately centered on an axis 3 of the crankshaft 5.
  • a bottom surface 25 of the cross member body 14 below the supporting recess 15 is formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5.
  • a further aspect of the invention provides a mold for use in casting a lower casing as described herein.
  • a further aspect provides a method of casting a lower casing as described herein.
  • a further aspect of the invention provides a supporting member for use in casting a lower casing as described herein.
  • a lower casing of an engine crankcase comprising:
  • a further aspect of the invention provides an insert member for use in casting a lower casing of an engine crankcase, the insert member comprising a notch configured to increase the cross-sectional area of a part of the lower casing.
  • the insert and/or mold is such that longitudinal cross sections of parts of the casing are made more equal in area to one another. Preferably the cross sections are substantially equal.
  • a further aspect of the invention provides a lower casing of an engine crankcase comprising a cross member body and a supporting member, at least part of the cross section of the cross member body being defined by a lower surface of the supporting member, wherein the lower surface of the supporting member comprises a notch such that the cross sectional area of the cross member body in the region of the notch is substantially invariable in a longitudinal direction.
  • Also provided by the invention is a supporting member or insert member as described herein.
  • reference numeral 1 denotes a four-stroke multi-cylinder (four-cylinder) engine (internal combustion engine).
  • the engine 1 comprises a crankcase 2, a crankshaft 5 including a journal 4 supported by the crankcase 2 to be rotatable about its approximately horizontally extending axis 3, and an oil pan 6 supported at a lower end of the crankcase 2.
  • the crankcase 2 is divided into an upper and a lower casing 7, 8 with reference to the axis 3 of the crankshaft 5.
  • the upper and the lower casings 7, 8 are connectable to each other with fasteners 9.
  • the crankshaft 5 is interposed and supported between the upper and the lower casings 7, 8.
  • the lower casing 8 is shaped like a ladder frame.
  • the lower casing 8 comprises a pair of left and right aluminum side members 11, 12 extending along the crankshaft 5 and disposed on the left and right thereof, and a laterally extending cross member 13 provided between the side members 11, 12.
  • the cross member 13 comprises an aluminum cross member body 14 provided between the side members 11, 12, and a cast-iron supporting member 17 formed with a semicircular supporting recess 15 on its top surface 16 for the crankshaft 5 to be fitted in and supported at the lower half of the journal 4, and built in the cross member body 14 while leaving the top surface 16.
  • the supporting recess 15 has an arcuate surface approximately centered on the axis 3 of the crankshaft 5.
  • the supporting member 17 comprises a supporting member body 19 shaped like a cuboid as a whole and formed with the supporting recess 15 on its top surface 16, and a projecting rib 20 integrally formed on an outer surface of the supporting member body 19 around the edge of the supporting recess 15 (the axial edge of the crankshaft 5).
  • the rib 20 is formed in an arcuate shape approximately centered on the axis 3 of the crankshaft 5.
  • a notch 23 is formed at a lower end of the supporting member 17 below the supporting recess 15.
  • the notch 23 is formed to face approximately the entire region of the supporting recess 15.
  • the notch 23 has a ceiling 24 formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5.
  • the cross member body 14 below the supporting recess 15 has a bottom surface 25 formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5 and protruded downward of the bottom surface of the supporting member 17.
  • longitudinal (lateral) cross sections of the cross member body 14 below the supporting recess 15 are made generally equal in area to one another.
  • the supporting member 17 is built in the cross member body 14 while leaving its top surface 16 and the rib 20 close to the top surface 16.
  • the side members 11, 12 and the cross member body 14 are formed together through aluminum casting by using the supporting member 17 as an insert member.
  • a mold for the lower casing 8 is formed with the supporting member 17 as an insert member disposed in position.
  • liquid aluminum A is poured into an inner mold of the mold for the side member 11, that is, one of inner molds for the side members 11, 12.
  • the liquid aluminum A flows along inside of an inner mold for the cross member body 14 longitudinally from the inner mold for one of the side members 11 toward the inner mold for the other side member 12. Filling the inside of the mold with the liquid aluminum A in such a way as described forms the lower casing 8, with the supporting member 17 built in the cross member body 14.
  • the notch 23 is formed at the lower end of the supporting member 17 below the supporting recess 15.
  • Forming the notch 23 provides increased cross-sectional area of a longitudinal midsection of the cross member body 14 below the supporting recess 15.
  • the midsection of the cross member body 14 has a top surface formed with a recess of a semicircular shape corresponding to the shape of the supporting recess 15 formed on the top surface 16 of the supporting member 17.
  • the midsection of the cross member body 14, therefore, tends to become smaller in cross-sectional area than longitudinal ends thereof. Forming the notch 23, however, allows the midsection of the cross member body 14 to be increased in cross-sectional area as described above, so that the longitudinal cross sections of the cross member body 14 are made more equal in area to one another.
  • the ceiling 24 of the notch 23 is formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5, as described above.
  • bottom surface 25 of the cross member body 14 below the supporting recess 15 is formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5, as described above.
  • the ceiling 24 of the notch 23, as well as the bottom surface 25 of the midsection of the cross member body 14, is formed in an arcuate protrusion approximately centered on the axis 3 of the crankshaft 5, as described above. Therefore, the longitudinal cross sections of the cross member body 14 below the supporting recess 15 are made generally equal in area to one another.
  • the engine may be a two-stroke single-cylinder engine.
  • An aspect of the present invention provides a lower casing of an engine crankcase comprising: a pair of left and right aluminum side members extending along a crankshaft and disposed on the left and right thereof; and a laterally extending cross member provided between the side members, the cross member including: an aluminum cross member body provided between the side members; and a cast-iron supporting member formed with a semicircular supporting recess on its top surface for the crankshaft to be fitted in at the lower half of its journal, and built in the cross member body while leaving the top surface, the side members and the cross member body being formed together through aluminum casting by using the supporting member as an insert member, in which a notch is formed at a lower end of the supporting member below the supporting recess.
  • Forming the notch provides increased cross-sectional area of a longitudinal midsection of the cross member body below the supporting recess.
  • the midsection of the cross member body has a top surface formed with a recess of a semicircular shape corresponding to the shape of the supporting recess formed on the top surface of the supporting member.
  • the midsection of the cross member body therefore, tends to become smaller in cross-sectional area than longitudinal ends thereof. Forming the notch, however, allows the midsection of the cross member body to be increased in cross-sectional area as described above, so that longitudinal cross sections of the cross member body are made more equal in area to one another.
  • the notch has a ceiling formed in an arcuate protrusion approximately centered on an axis of the crankshaft.
  • a bottom surface of the cross member body below the supporting recess is formed in an arcuate protrusion approximately centered on the axis of the crankshaft.
  • the ceiling of the notch, as well as the bottom surface of the midsection of the cross member body is formed in an arcuate protrusion approximately centered on the axis of the crankshaft. Therefore, the longitudinal cross sections of the cross member body below the supporting recess are made generally equal in area to one another.
  • This can reliably prevent further unevenness from occurring, at the time of casting, in the flow of the liquid in the inner mold for the cross member body below the supporting recess, as well as casting defects including pores.
  • an engine 1 includes a pair of left and right aluminum side members 11, 12 extending along a crankshaft 5 and disposed on the left and right thereof, and a laterally extending cross member 13 provided between the side members 11, 12.
  • the cross member 13 comprises an aluminum cross member body 14 provided between the side members 11, 12, and a cast-iron supporting member 17 formed with a semicircular supporting recess 15 on its top surface 16 for the crankshaft 5 to be fitted in at the lower half of its journal 4, and built in the cross member body 14 while leaving the top surface 16.
  • the side members 11, 12 and the cross member body 14 are formed together through aluminum casting by using the supporting member 17 as an insert member.
  • a notch 23 is formed at a lower end of the supporting member 17 below the supporting recess 15.
  • Such an arrangement can prevent casting defects from occurring in casting a lower casing of a crankcase for supporting a crankshaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
EP04253155A 2003-05-28 2004-05-28 Unterteil eines Kurbelgehäuses einer Brennkraftmaschine Expired - Fee Related EP1482157B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08001889A EP1911956A3 (de) 2003-05-28 2004-05-28 Unterkurbelgehäuse einer Brennkraftmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003150391 2003-05-28
JP2003150391A JP2004353511A (ja) 2003-05-28 2003-05-28 エンジンにおけるクランクケースの下部ケース

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08001889A Division EP1911956A3 (de) 2003-05-28 2004-05-28 Unterkurbelgehäuse einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1482157A1 true EP1482157A1 (de) 2004-12-01
EP1482157B1 EP1482157B1 (de) 2008-04-02

Family

ID=32677679

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04253155A Expired - Fee Related EP1482157B1 (de) 2003-05-28 2004-05-28 Unterteil eines Kurbelgehäuses einer Brennkraftmaschine
EP08001889A Withdrawn EP1911956A3 (de) 2003-05-28 2004-05-28 Unterkurbelgehäuse einer Brennkraftmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08001889A Withdrawn EP1911956A3 (de) 2003-05-28 2004-05-28 Unterkurbelgehäuse einer Brennkraftmaschine

Country Status (6)

Country Link
EP (2) EP1482157B1 (de)
JP (1) JP2004353511A (de)
CN (1) CN100567722C (de)
DE (1) DE602004012795T2 (de)
GB (1) GB2402171B (de)
MY (1) MY136806A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10598123B2 (en) 2017-12-14 2020-03-24 Toyota Jidosha Kabushiki Kaisha Ladder frame for internal combustion engine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103375300B (zh) * 2012-04-13 2016-05-04 比亚迪股份有限公司 一种发动机下机体结构及具有该结构的发动机
KR102394867B1 (ko) * 2017-12-27 2022-05-06 현대자동차주식회사 엔진 베드 플레이트의 주철 인서트 매입 구조 및 방법
CN111059156A (zh) * 2019-12-25 2020-04-24 芜湖航瑞航空动力产业技术研究院有限公司 发动机主轴承座

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532326C1 (de) * 1995-09-01 1997-01-02 Daimler Benz Ag Kurbelgehäuse
DE19640719C1 (de) * 1996-10-02 1997-10-16 Iav Motor Gmbh Lagerbett für die Kurbelwellenlagerung von Verbrennungsmotoren
JP2000337348A (ja) * 1999-05-31 2000-12-05 Toyota Motor Corp クランクシャフト用軸受
US20030118260A1 (en) * 2001-12-21 2003-06-26 Suzuki Motor Corporation Bearing cap structure for engine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545722C1 (de) * 1985-12-21 1987-01-29 Porsche Ag Verfahren zum Ausrichten von Lagerdeckeln an Lagerabschnitten eines Kurbelgehaeuses
US5203854A (en) * 1991-02-06 1993-04-20 Ab Volvo Main bearing cap for internal combustion engines
DE4433801C1 (de) * 1994-09-22 1995-11-02 Porsche Ag Lagergestell für eine Brennkraftmaschine
DE19537191A1 (de) * 1995-10-06 1997-04-10 Porsche Ag Kurbelwellenlagerung für eine Brennkraftmaschine
US6422755B1 (en) * 1996-05-03 2002-07-23 Gkn Sinter Metals-Germantown, Inc. Precisely repositioning powder metal components
JPH10196451A (ja) * 1997-01-17 1998-07-28 Suzuki Motor Corp エンジンのクランク室構造
JPH10331715A (ja) 1997-05-29 1998-12-15 Suzuki Motor Corp ラダーフレーム構造
DE19810464C1 (de) * 1998-03-11 1999-06-02 Daimler Chrysler Ag Kurbelgehäuse für eine Brennkraftmaschine
AT407185B (de) * 1998-06-03 2001-01-25 Miba Sintermetall Ag Kurbelgehäuse aus leichtmetall für einen verbrennungsmotor
AT3760U1 (de) * 1999-08-19 2000-07-25 Avl List Gmbh Zylinder-kurbelgehäuse für eine brennkraftmaschine
EP1321656B1 (de) * 2001-12-21 2007-02-14 Ford Global Technologies, LLC Hauptlagerdeckel für eine Brennkraftmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532326C1 (de) * 1995-09-01 1997-01-02 Daimler Benz Ag Kurbelgehäuse
DE19640719C1 (de) * 1996-10-02 1997-10-16 Iav Motor Gmbh Lagerbett für die Kurbelwellenlagerung von Verbrennungsmotoren
JP2000337348A (ja) * 1999-05-31 2000-12-05 Toyota Motor Corp クランクシャフト用軸受
US20030118260A1 (en) * 2001-12-21 2003-06-26 Suzuki Motor Corporation Bearing cap structure for engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 15 6 April 2001 (2001-04-06) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10598123B2 (en) 2017-12-14 2020-03-24 Toyota Jidosha Kabushiki Kaisha Ladder frame for internal combustion engine

Also Published As

Publication number Publication date
CN1573065A (zh) 2005-02-02
GB0412047D0 (en) 2004-06-30
EP1911956A2 (de) 2008-04-16
JP2004353511A (ja) 2004-12-16
GB2402171B (en) 2006-09-06
EP1482157B1 (de) 2008-04-02
CN100567722C (zh) 2009-12-09
DE602004012795T2 (de) 2009-04-30
DE602004012795D1 (de) 2008-05-15
GB2402171A (en) 2004-12-01
MY136806A (en) 2008-11-28
EP1911956A3 (de) 2012-09-26

Similar Documents

Publication Publication Date Title
EP1482157A1 (de) Unterkurbelgehäuse einer Brennkraftmaschine
JPS63192936A (ja) 水冷エンジンのシリンダブロツク
US6942391B2 (en) Crankshaft supporter
US4922863A (en) Cast engine cylinder having an internal passageway and method of making same
JP2576924B2 (ja) 筒形ピストン内燃機関のハウジング
JP3666131B2 (ja) Ｖ型ドライライナエンジンのシリンダブロック
JP4262756B2 (ja) 多気筒エンジン
US6484684B2 (en) Crankshaft rotational support arrangement for an internal combustion engine
EP1482134B1 (de) Ölwanne für eine Brennkraftmaschine
JP2004316556A (ja) 多気筒エンジンのクランクケース
JP2004286000A (ja) エンジンのシリンダブロック
JP2008232079A (ja) 内燃機関のシリンダブロック及びその製造方法
JPS6320846Y2 (de)
JP4297618B2 (ja) 内燃機関のシリンダブロック冷却構造
CN208153174U (zh) 汽缸缸体和内燃发动机
JPH10122041A (ja) 車両用エンジン
JPH1113445A (ja) 多気筒内燃機関におけるシリンダブロックの構造
JPH05321751A (ja) 多気筒内燃機関用シリンダスリーブ集合体
JPH11210751A (ja) アルミ合金製シリンダブロック
JPH10339207A (ja) シリンダブロックの冷却構造
JP3837313B2 (ja) エンジン
JPH0220442Y2 (de)
JP2002089362A (ja) シリンダブロックの構造
JPH0267449A (ja) シリンダブロックのクランクシャフト支持部構造
JP2003239799A (ja) エンジンのシリンダブロック構造

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050531

AKX Designation fees paid

Designated state(s): DE GB

17Q First examination report despatched

Effective date: 20060317

17Q First examination report despatched

Effective date: 20060317

17Q First examination report despatched

Effective date: 20060317

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OSMAN, AZMI,C/O PETROLIAM NOSIONAL BERHAD

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602004012795

Country of ref document: DE

Date of ref document: 20080515

Kind code of ref document: P

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

Effective date: 20090106

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004012795

Country of ref document: DE

Representative=s name: FRIESE GOEDEN PATENTANWAELTE PARTGMBB, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004012795

Country of ref document: DE

Representative=s name: ANDRAE WESTENDORP PATENTANWAELTE PARTNERSCHAFT, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004012795

Country of ref document: DE

Representative=s name: FRIESE GOEDEN PATENTANWAELTE PARTGMBB, DE

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

Ref country code: GB

Payment date: 20180329

Year of fee payment: 15

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

Ref country code: DE

Payment date: 20180515

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004012795

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190528

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 NON-PAYMENT OF DUE FEES

Effective date: 20190528

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203