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IE801810L - Exhaust valve for i.c. engine - Google Patents

Exhaust valve for i.c. engine

Info

Publication number
IE801810L
IE801810L IE801810A IE181080A IE801810L IE 801810 L IE801810 L IE 801810L IE 801810 A IE801810 A IE 801810A IE 181080 A IE181080 A IE 181080A IE 801810 L IE801810 L IE 801810L
Authority
IE
Ireland
Prior art keywords
valve
gaps
seating surfaces
annular chamber
engine cylinder
Prior art date
Application number
IE801810A
Other versions
IE50116B1 (en
Inventor
Emil Fursund Kai
Original Assignee
B & W Diesel As
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 B & W Diesel As filed Critical B & W Diesel As
Publication of IE801810L publication Critical patent/IE801810L/en
Publication of IE50116B1 publication Critical patent/IE50116B1/en

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
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
    • 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
    • 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
    • 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
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lift Valve (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

In the stationary and/or the movable valve part (1, 4) of the exhaust valve there is provided an annular chamber (9) formed as a circumferential recess in the surface of the valve part (4) in question facing the other valve part. The annular chamber is located intermediate the seating surfaces (5, 6) of the valve parts and the combustion chamber (10) of the engine cylinder and it communicates with the combustion chamber through a relatively narrow inlet when the valve is closed. During the compression period of the engine cylinder's working cycle the annular chamber is filled by pure and relatively cool air, and if local gaps are present between the seating surfaces, that air acts as a barrier preventing the leakage of substantial amounts of hot and aggressive combustion gases through the gaps during the initial part of the expansion period. This prevents the valve parts from being subjected, adjacent to said gaps, to a high temperature rise and concomitant heavy corrosive attacks which would lead to a rapid enlargement of the gaps. The invention, therefore, prolongs the lifetime of the valve by delaying the moment when a refurbishing of the seating surfaces becomes necessary. [EP0024890A1]
IE1810/80A 1979-08-29 1980-08-28 Exhaust valve for an internal combustion engine IE50116B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK361279A DK144217C (en) 1979-08-29 1979-08-29 EXHAUST VALVE FOR A COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
IE801810L true IE801810L (en) 1981-02-28
IE50116B1 IE50116B1 (en) 1986-02-19

Family

ID=8124866

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1810/80A IE50116B1 (en) 1979-08-29 1980-08-28 Exhaust valve for an internal combustion engine

Country Status (11)

Country Link
EP (1) EP0024890B1 (en)
JP (1) JPS5634915A (en)
BR (1) BR8005413A (en)
DE (1) DE3066986D1 (en)
DK (1) DK144217C (en)
ES (1) ES494569A0 (en)
FI (1) FI67252C (en)
IE (1) IE50116B1 (en)
NO (1) NO154807C (en)
PL (1) PL124723B1 (en)
YU (1) YU41940B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024802U (en) * 1983-07-27 1985-02-20 日野自動車株式会社 Direct injection diesel engine intake valve
DE3331145C2 (en) * 1983-08-30 1986-08-28 Audi AG, 8070 Ingolstadt Light alloy cylinder head for reciprocating internal combustion engines
DE3425690A1 (en) * 1984-07-12 1986-01-23 Klöckner-Humboldt-Deutz AG, 5000 Köln Valve body for an internal combustion engine
JPH0578905U (en) * 1992-03-31 1993-10-26 愛知機械工業株式会社 Internal combustion engine valve
DE4301632C2 (en) * 1993-01-22 2001-08-02 Audi Ag Valve seat ring
DE19754138B4 (en) * 1997-12-05 2008-04-03 Bayerische Motoren Werke Ag Lifting valve of an internal combustion engine, in particular inlet-lift valve
DE10034773B4 (en) * 2000-07-18 2006-08-17 Man B & W Diesel A/S Gas exchange valve arrangement
JP2011038438A (en) * 2009-08-07 2011-02-24 Yamaha Motor Co Ltd Intake valve, internal combustion engine and transport apparatus having the same
NO336985B1 (en) * 2014-06-03 2015-12-14 Bergen Engines As Inlet valve for an engine
CN105041398A (en) * 2015-06-29 2015-11-11 唐萍 Valve ejector rod for engine
DE102017119887A1 (en) 2017-08-30 2019-02-28 Man Truck & Bus Ag Valve for an internal combustion engine
US11060425B2 (en) * 2019-03-13 2021-07-13 Caterpillar Inc. Valve seat insert for engine head having venturi flow crowns and seating surface profiled for limiting valve recession

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB108436A (en) * 1917-03-24 1917-08-09 James Mckechnie Improvements in or relating to the Air or Scavenging Valves of Internal Combustion Engines.
US1560235A (en) * 1925-01-05 1925-11-03 Hinsch Albert Otto Valve
US1873119A (en) * 1927-07-20 1932-08-23 Doherty Res Co Air cooled valve and valve seat
DE744250C (en) * 1939-08-02 1944-11-17 Daimler Benz Ag Device to avoid damaging the exhaust valves from exhaust gases in high-performance internal combustion engines
GB532571A (en) * 1939-09-08 1941-01-27 Herbert Frank Percy Purday Improvements relating to the inlet valves of internal combustion engines
FR1481241A (en) * 1966-04-07 1967-05-19 Semt Method and device for forced cooling of a thermal machine valve or the like and their various applications
FR1531687A (en) * 1967-05-25 1968-07-05 Semt Valve refinements
US3820522A (en) * 1970-01-23 1974-06-28 Daimler Benz Ag Valve seat for the inlet valve in the cylinder head of a four cycle internal combustion engine
US4106466A (en) * 1976-08-16 1978-08-15 Caterpillar Tractor Co. Engine valve with recessed seat and annular groove
JPS53104021A (en) * 1977-02-24 1978-09-09 Mitsubishi Heavy Ind Ltd Exhaust valve device in internal combustion engine

Also Published As

Publication number Publication date
ES8105441A1 (en) 1981-06-01
JPS6336403B2 (en) 1988-07-20
DK144217C (en) 1982-06-21
BR8005413A (en) 1981-03-10
FI67252C (en) 1985-02-11
YU41940B (en) 1988-02-29
PL226485A1 (en) 1981-05-22
EP0024890B1 (en) 1984-03-14
NO154807B (en) 1986-09-15
IE50116B1 (en) 1986-02-19
ES494569A0 (en) 1981-06-01
EP0024890A1 (en) 1981-03-11
FI67252B (en) 1984-10-31
PL124723B1 (en) 1983-02-28
JPS5634915A (en) 1981-04-07
DK361279A (en) 1981-03-01
DE3066986D1 (en) 1984-04-19
FI802721A7 (en) 1981-03-01
NO154807C (en) 1986-12-29
DK144217B (en) 1982-01-18
YU213080A (en) 1983-01-21
NO802533L (en) 1981-03-02

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Legal Events

Date Code Title Description
MM4A Patent lapsed