DE69703444C5 - Auslassventil für verbrennungsmotor - Google Patents

Auslassventil für verbrennungsmotor Download PDF

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Publication number
DE69703444C5
DE69703444C5 DE69703444.5T DE69703444T DE69703444C5 DE 69703444 C5 DE69703444 C5 DE 69703444C5 DE 69703444 T DE69703444 T DE 69703444T DE 69703444 C5 DE69703444 C5 DE 69703444C5
Authority
DE
Germany
Prior art keywords
seat area
valve disc
mpa
valve
exhaust valve
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.)
Expired - Lifetime
Application number
DE69703444.5T
Other languages
English (en)
Other versions
DE69703444T2 (de
DE69703444D1 (de
Inventor
Harro Hoeg
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.)
MAN Energy Solutions Filial af MAN Energy Solutions SE
Original Assignee
MAN Diesel and Turbo Filial af MAN Diesel and Turbo SE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8095898&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69703444(C5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Diesel and Turbo Filial af MAN Diesel and Turbo SE filed Critical MAN Diesel and Turbo Filial af MAN Diesel and Turbo SE
Application granted granted Critical
Publication of DE69703444D1 publication Critical patent/DE69703444D1/de
Publication of DE69703444T2 publication Critical patent/DE69703444T2/de
Publication of DE69703444C5 publication Critical patent/DE69703444C5/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • F01L3/04—Coated valve members or valve-seats
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Powder Metallurgy (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Valve Device For Special Equipments (AREA)
  • Catalysts (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

An exhaust valve for an internal combustion engine, particularly a two-stroke crosshead engine, comprising a movable spindle with a valve disc of a nickel-based alloy which also constitutes an annular seat area at the upper surface of the valve disc, which seat area abuts a corresponding seat area on a stationary valve member in the closed position of the valve, the seat area of the valve disc having been subjected at its manufacture to a thermo-mechanical deformation process at which the material is at least partially cold-worked, characterized in that the valve disc is made of a nickel-based alloy which can achieve a yield strength of at least 1100 MPa, and that the seat area at the upper surface of the valve disc has been given dent mark preventing properties in the form of a yield strength (Rp0,2) of at least 1100 MPa at a temperature of approximately 20°C by means of the thermo-mechanical deformation process and possibly a yield strength increasing heat treatment.

Description

  • Der X. Zivilsenat des Bundesgerichtshofs hat auf die mündliche Verhandlung vom 25. Januar 2011 für Recht erkannt:
    Auf die Berufung der Beklagten wird das am 17. April 2008 verkündete Urteil des 10. Senats (Juristischen Beschwerdesenats und Nichtigkeitssenats) des Bundespatentgerichts abgeändert.
    Das europäische Patent 901 564 wird unter Abweisung der Klage im Übrigen für das Hoheitsgebiet der Bundesrepublik Deutschland für nichtig erklärt, soweit es über folgende Fassung seiner Patentansprüche hinausgeht:

Claims (7)

  1. An exhaust valve for an internal combustion engine, particularly a two-stroke crosshead engine, comprising a movable spindle with a valve disc of a nickel-based alloy which also constitutes an annular seat area at the upper surface of the valve disc, which seat area abuts a corresponding seat area on a stationary valve member in the closed position of the valve, the seat area of the valve disc having been subjected at its manufacture to a thermo-mechanical deformation process at which the material is at least partially cold-worked, characterized in that the valve disc is made of a nickel-based alloy which can achieve a yield strength of at least 1100 MPa, and that the seat area at the upper surface of the valve disc has been given dent mark preventing properties in the form of a yield strength (Rp0,2) of at least 1100 MPa at a temperature of approximately 20°C by means of the thermo-mechanical deformation process and possibly a yield strength increasing heat treatment.
  2. An exhaust valve according to claim 1, characterized in that the seat area material has a yield strength of at least 1200 MPa.
  3. An exhaust valve according to claim 2, characterized in that the seat material has a yield strength of at least 1300 MPa, preferably at least 1400 MPa.
  4. An exhaust valve according to any one of claims 1 to 3, characterized in that the seat areas on the stationary member and the valve disc, respectively, have substantially the same yield strength at the operating temperatures of the seat areas.
  5. An exhaust valve according to any one of claims 1 to 3, characterized in that the seat area on the stationary member has a substantially higher yield strength than the seat area on the valve disc at the operation temperatures of the seat areas.
  6. An exhaust valve according to any one of the preceding claims, characterized in that the external diameter of the valve disc is in the interval from 130 mm to 500 mm.
  7. Use of a nickel-based chromium-containing alloy with a yield strength of at least 1100 MPa at approximately 20°C as a dent mark limiting or preventive material in an annular seat area at the upper surface of a movable valve disc in an exhaust valve for an internal combustion engine, particularly a two-stroke crosshead engine, the seat area abutting a corresponding seat area on a stationary valve member when the valve is closed.
DE69703444.5T 1996-06-07 1997-06-03 Auslassventil für verbrennungsmotor Expired - Lifetime DE69703444C5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK199600641A DK173337B1 (da) 1996-06-07 1996-06-07 Udstødsventil til en forbrændingsmotor
DK64196 1996-06-07
PCT/DK1997/000245 WO1997047861A1 (en) 1996-06-07 1997-06-03 An exhaust valve for an internal combustion engine

Publications (3)

Publication Number Publication Date
DE69703444D1 DE69703444D1 (de) 2000-12-07
DE69703444T2 DE69703444T2 (de) 2001-04-05
DE69703444C5 true DE69703444C5 (de) 2017-03-30

Family

ID=8095898

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69703444.5T Expired - Lifetime DE69703444C5 (de) 1996-06-07 1997-06-03 Auslassventil für verbrennungsmotor

Country Status (14)

Country Link
US (1) US6244234B1 (de)
EP (1) EP0901564B1 (de)
JP (1) JP3421055B2 (de)
KR (1) KR100419932B1 (de)
CN (1) CN1088148C (de)
AT (1) ATE197337T1 (de)
AU (1) AU3090297A (de)
DE (1) DE69703444C5 (de)
DK (1) DK173337B1 (de)
ES (1) ES2152676T3 (de)
HK (1) HK1019914A1 (de)
NO (1) NO320617B1 (de)
PL (1) PL187245B1 (de)
WO (1) WO1997047861A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050020A (ja) * 1999-05-31 2001-02-23 Nippon Piston Ring Co Ltd 内燃機関用の弁装置
US6745738B1 (en) 2001-09-17 2004-06-08 Richard J. Bosscher Pneumatic valve return spring
KR101269063B1 (ko) * 2008-07-25 2013-05-29 니탄 밸브 가부시키가이샤 배기용 포핏밸브 및 동 밸브의 고용화 처리 방법
JP2010084693A (ja) * 2008-10-01 2010-04-15 Aisan Ind Co Ltd エンジンバルブ
KR101129406B1 (ko) * 2009-01-23 2012-03-26 맨 디젤 앤드 터보 필리얼 아프 맨 디젤 앤드 터보 에스이 티스크랜드 내부 연소 엔진을 위한 배기 밸브 스핀들 또는 피스톤 형태의 가동 벽 부재 및, 가동 벽 부재의 제조 방법
CN102877932A (zh) * 2012-10-25 2013-01-16 沈阳航天三菱汽车发动机制造有限公司 一种涡轮增压发动机
CN103016138A (zh) * 2012-11-07 2013-04-03 沈阳航天三菱汽车发动机制造有限公司 涡轮增压发动机
DK177960B1 (en) * 2014-04-08 2015-02-02 Man Diesel & Turbo Deutschland An exhaust valve for an internal combustion engine
CN105240072B (zh) * 2015-11-03 2017-07-14 济南大学 一种电磁控制的排气门连接装置
CN106112204A (zh) * 2016-07-15 2016-11-16 南京国际船舶设备配件有限公司 一种船用低速机气阀密封面堆焊镍基合金焊接工艺
CN106077914B (zh) * 2016-07-15 2019-07-09 南京国际船舶设备配件有限公司 一种船用低速机气阀盘底及其焊接工艺
DE102016117698A1 (de) * 2016-09-20 2018-03-22 Man Diesel & Turbo Se Ventilkörper eines Gaswechselventils, Gaswechselventil und Brennkraftmaschine
CN112756532A (zh) * 2020-11-30 2021-05-07 沪东重机有限公司 一种船用低速柴油机排气阀阀杆的制造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741080A (en) * 1987-02-20 1988-05-03 Eaton Corporation Process for providing valve members having varied microstructure
US4844864A (en) * 1988-04-27 1989-07-04 Carpenter Technology Corporation Precipitation hardenable, nickel-base alloy
JP2778705B2 (ja) * 1988-09-30 1998-07-23 日立金属株式会社 Ｎｉ基超耐熱合金およびその製造方法
US4909860A (en) 1989-02-21 1990-03-20 Inco Alloys International, Inc. Method for strengthening cold worked nickel-base alloys
DK0521821T3 (da) 1991-07-04 1996-08-26 New Sulzer Diesel Ag Udstødningsventil til en dieselforbrændingsmotor og fremgangsmåde til fremstilling af ventilen
US5328527A (en) 1992-12-15 1994-07-12 Trw Inc. Iron aluminum based engine intake valves and method of making thereof

Also Published As

Publication number Publication date
NO320617B1 (no) 2005-12-27
CN1221472A (zh) 1999-06-30
JP3421055B2 (ja) 2003-06-30
NO985611D0 (no) 1998-12-01
ES2152676T3 (es) 2001-02-01
EP0901564B1 (de) 2000-11-02
AU3090297A (en) 1998-01-07
ATE197337T1 (de) 2000-11-15
JP2000505148A (ja) 2000-04-25
KR20000016391A (ko) 2000-03-25
US6244234B1 (en) 2001-06-12
WO1997047861A1 (en) 1997-12-18
CN1088148C (zh) 2002-07-24
PL330429A1 (en) 1999-05-10
DE69703444T2 (de) 2001-04-05
PL187245B1 (pl) 2004-06-30
DK173337B1 (da) 2000-07-31
KR100419932B1 (ko) 2004-06-18
DE69703444D1 (de) 2000-12-07
NO985611L (no) 1998-12-01
HK1019914A1 (en) 2000-03-03
EP0901564A1 (de) 1999-03-17
DK64196A (da) 1997-12-08

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8310 Action for declaration of annulment
8327 Change in the person/name/address of the patent owner

Owner name: MAN DIESEL, FILIAL AF MAN DIESEL SE, TYSKLAND,, DK

8327 Change in the person/name/address of the patent owner

Owner name: MAN DIESEL & TURBO, FILIAL AF MAN DIESEL & TUR, DK