EP0103064A2 - Dispositif pour l'échappement des gaz brûlés sans étincelles - Google Patents

Dispositif pour l'échappement des gaz brûlés sans étincelles Download PDF

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Publication number
EP0103064A2
EP0103064A2 EP83104378A EP83104378A EP0103064A2 EP 0103064 A2 EP0103064 A2 EP 0103064A2 EP 83104378 A EP83104378 A EP 83104378A EP 83104378 A EP83104378 A EP 83104378A EP 0103064 A2 EP0103064 A2 EP 0103064A2
Authority
EP
European Patent Office
Prior art keywords
bore
safety valve
piston
housing
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.)
Withdrawn
Application number
EP83104378A
Other languages
German (de)
English (en)
Other versions
EP0103064A3 (fr
Inventor
Hans Cramer
Hugo Göbel
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0103064A2 publication Critical patent/EP0103064A2/fr
Publication of EP0103064A3 publication Critical patent/EP0103064A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • 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
    • F01L3/24—Safety means or accessories, not provided for in preceding sub- groups of this group
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • the invention relates to an arrangement for spark-free discharge of combustion gases according to the preamble of claim 1 and a safety valve suitable for this according to the preamble of claims 2 and 5.
  • the classification societies require safety valves for each cylinder, which open when the ignition pressure is excessive, so that the cylinder interior is connected to the environment. This prevents the motors from being endangered.
  • the object of the present invention is to improve an arrangement of the type mentioned at the outset in such a way that the pipe and collecting lines and the sheath via the safety valve are no longer necessary.
  • this object is achieved by the characterizing features of the first claim.
  • This achieves the advantage that the combustion gases, which are discharged via the safety valve if the ignition pressures are too high, are passed directly into the exhaust port for each cylinder within the cylinder head. Additional components outside the cylinder head are completely eliminated. It is therefore only necessary to provide a bypass line in the cylinder head from the combustion chamber leading to the exhaust port and bypassing the exhaust valve, in which the safety valve is installed.
  • a safety valve suitable for the arrangement described above is described in claims 2 to 8.
  • this safety valve also solves the task of reliably sealing the outlet channel. This prevents exhaust gases from flowing into the combustion chamber via the safety valve.
  • the advantage of the solution according to the characterizing features of claim 2 is that by the application the exhaust gases onto the lateral surfaces of the frustoconical piston, the pressure forces acting on the piston in the opening direction are nominated from the exhaust gas pressure. Since there is usually no more than 2 bar overpressure in the outlet duct, it is ensured in every operating state that the safety valve does not open solely because of the exhaust gas pressure.
  • the structure of the safety valve according to the characterizing features of claim 5 has the advantage that there is a separate closing member for each of the two media to be closed, so that their function can be optimized.
  • the assignment according to claim 6 is preferred. Here it is taken into account that the pressure in the exhaust gas can open the assigned slide at a level that is unusual in operation, but is not able to open the piston due to the stop. This ensures that exhaust gas cannot flow into the combustion chamber in any operating state. Conversely, the stopper is opened by the opening piston after a predetermined distance covered, so that combustion gases can flow into the outlet channel when the ignition pressure is too high.
  • this design of the safety valve ensures that a pulsation of the combustion pressure just below the permissible maximum limit does not lead to the safety valve opening, because the piston has to travel a fixed distance before the valve opens. This means that the opening pressure on the valve can be set very precisely.
  • FIG. 1 shows a cylinder head of a reciprocating piston internal combustion engine 2, which closes a cylinder 3.
  • the cylinder head 1 has an exhaust valve 6, which closes an exhaust port 7 (in FIG. 1).
  • a bore 8 is provided in the cylinder head 1, which leads from the cylinder interior 5 to a safety valve 9 and a further bore 10 which leads from the safety valve 9 to the exhaust port 7.
  • the safety valve 9 consists essentially of a valve housing 11, a closure part 12 and a compression spring 13 which holds the closure part in the closed position. The spring tension and thus the opening pressure of the safety valve 9 can be adjusted via a nut 14.
  • the closure part 12 is designed as a truncated cone-shaped piston 15, which closes the part of the bore 8 extending in the valve housing 11 to the combustion chamber 5.
  • the piston 15 On its outer surfaces 16, the piston 15 has a circumferential annular groove 17 which, in the closed state, is aligned with the part of the bore 10 (housing bore 10.1) running in the valve housing to the outlet channel 7. Furthermore, an annular groove 18 is provided on the end face of the safety valve 9 screwed into the cylinder head 1 to ensure that the part of the bore 10 running in the valve housing 11 is aligned with the part of the bore 10 running in the cylinder head in every installation position.
  • FIG. 2 An alternative of the safety valve 9 according to FIG. 1 is shown in FIG. 2.
  • the same components are provided with the same reference numbers. It differs from that shown in FIG. 1 in that no annular groove is provided in the piston 15. It is either missing entirely (right half of Fig. 2) or is from the piston 15 in the Valve housing 11 has been moved (annular groove 17 '). Also - as in F ig. 2 not shown - the part of the bore 10 running in the valve housing has a plurality of branches which run from the lateral surface 16 of the piston 15 - possibly from the finger groove 17 1 - to the annular groove 18. As a result, an enlarged flow cross section is available in the safety valve.
  • Fig. 3 shows a further possibility to build a safety valve for the arrangement according to the invention.
  • identical components are provided with the reference numerals used in FIG. 1.
  • the safety valve 9 shown in FIG. 3 has a closure part 12 which consists of a piston 19 and a slide 20 concentrically surrounding the piston 19.
  • the piston 19 in turn closes the bore 8 coming from the combustion chamber 5, while the slide 20, which essentially has the shape of a circular cylinder, closes with its end face 21 the parts of the bore 10 extending in the valve housing 11.
  • the slide 20 is held in the closed position by a spring 22 which is dimensioned such that the slide 20 remains closed at least at the usual pressures in the outlet channel 7.
  • an annular groove 23 is also embedded in the end face 21 of the slide 20.
  • the slide 20 To open the slide 20, it has a travel-dependent stop 24, via which the slide is carried by the lifting piston 19. This ensures that when the piston 19 is fully open due to excessive ignition pressure in the combustion chamber 5 also the slide 20 is open so that the combustion gases can flow through the bore 8 to the bore 10 and further into the outlet channel, in order to reduce the ignition pressure which is too high.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP83104378A 1982-08-13 1983-05-04 Dispositif pour l'échappement des gaz brûlés sans étincelles Withdrawn EP0103064A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3230133 1982-08-13
DE19823230133 DE3230133A1 (de) 1982-08-13 1982-08-13 Anordnung zum funkenfreien ableiten von verbrennungsgasen

Publications (2)

Publication Number Publication Date
EP0103064A2 true EP0103064A2 (fr) 1984-03-21
EP0103064A3 EP0103064A3 (fr) 1984-12-19

Family

ID=6170778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104378A Withdrawn EP0103064A3 (fr) 1982-08-13 1983-05-04 Dispositif pour l'échappement des gaz brûlés sans étincelles

Country Status (2)

Country Link
EP (1) EP0103064A3 (fr)
DE (1) DE3230133A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624554A1 (fr) * 1987-12-11 1989-06-16 Outboard Marine Corp Moteur equipe pour la detection d'un parametre des gaz d'echappement
FR2645910A1 (fr) * 1989-04-14 1990-10-19 Outboard Marine Corp Moteur a detecteur de gaz d'echappement ameliore
FR2769047A1 (fr) * 1997-09-30 1999-04-02 Bosch Gmbh Robert Procede de mise en oeuvre d'un moteur a combustion interne et systeme d'injection de carburant pour l'application de ce procede
JP2017137866A (ja) * 2016-02-03 2017-08-10 マン ディーゼル アンド ターボ フィリアル ア マン ディーゼル アンド ターボ エスイー チュスクランＭＡＮ Ｄｉｅｓｅｌ ＆ Ｔｕｒｂｏ，ｆｉｌｉａｌ ａｆ ＭＡＮ Ｄｉｅｓｅｌ ＆ Ｔｕｒｂｏ ＳＥ，Ｔｙｓｋｌａｎｄ ブローオフ制御を備える大型ターボチャージャー付き２ストローク圧縮着火内燃エンジン
DK179156B1 (en) * 2016-11-22 2017-12-18 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A relief valve for a large turbocharged twostroke compression-ignited internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720597A (zh) * 2020-06-28 2020-09-29 上海中船三井造船柴油机有限公司 一种船用柴油机缸盖的安全阀

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE344082C (fr) *
DE573831C (de) * 1931-08-15 1933-04-06 Maschf Augsburg Nuernberg Ag Vorrichtung zur Begrenzung des Hoechstdruckes in den Arbeitszylindern von Brennkraftmaschinen
DE1229780B (de) * 1962-08-27 1966-12-01 Fritz Holthaus UEberdrucksicherung an Gasmaschinen
DE1264195B (de) * 1963-07-09 1968-03-21 Lucas Industries Ltd UEberdruckventil
IT968610B (it) * 1972-10-03 1974-03-20 Bandstahlkombinat Matern Veb Dispositivo per la generazione di una differenza di pressione in un liquido scorrente e presentante viscosita variabile
DE3048928A1 (de) * 1980-12-24 1982-07-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg "zuenddruckueberwachungseinrichtung an brennkraftmaschinen"

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624554A1 (fr) * 1987-12-11 1989-06-16 Outboard Marine Corp Moteur equipe pour la detection d'un parametre des gaz d'echappement
BE1001690A3 (fr) * 1987-12-11 1990-02-06 Outboard Marine Corp Moteur equipe pour la detection d'un parametre des gaz d'echappement.
FR2645910A1 (fr) * 1989-04-14 1990-10-19 Outboard Marine Corp Moteur a detecteur de gaz d'echappement ameliore
FR2769047A1 (fr) * 1997-09-30 1999-04-02 Bosch Gmbh Robert Procede de mise en oeuvre d'un moteur a combustion interne et systeme d'injection de carburant pour l'application de ce procede
US6098596A (en) * 1997-09-30 2000-08-08 Robert Bosch Gmbh Process for operating an internal combustion engine and a fuel injection system for carrying out the process
JP2017137866A (ja) * 2016-02-03 2017-08-10 マン ディーゼル アンド ターボ フィリアル ア マン ディーゼル アンド ターボ エスイー チュスクランＭＡＮ Ｄｉｅｓｅｌ ＆ Ｔｕｒｂｏ，ｆｉｌｉａｌ ａｆ ＭＡＮ Ｄｉｅｓｅｌ ＆ Ｔｕｒｂｏ ＳＥ，Ｔｙｓｋｌａｎｄ ブローオフ制御を備える大型ターボチャージャー付き２ストローク圧縮着火内燃エンジン
DK201670059A1 (en) * 2016-02-03 2017-08-28 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A large turbocharged two-stroke compression-ignited internal combustion engine with blow-off control
DK179120B1 (en) * 2016-02-03 2017-11-13 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A large turbocharged two-stroke compression-ignited internal combustion engine with blow-off control
DK179156B1 (en) * 2016-11-22 2017-12-18 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A relief valve for a large turbocharged twostroke compression-ignited internal combustion engine
DK201670927A1 (en) * 2016-11-22 2017-12-18 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A relief valve for a large turbocharged twostroke compression-ignited internal combustion engine
CN108087119A (zh) * 2016-11-22 2018-05-29 曼狄赛尔公司德国曼柴油机欧洲股份公司的联营公司 大型涡轮增压两冲程压燃式内燃机的安全阀
KR20180057527A (ko) * 2016-11-22 2018-05-30 맨 디젤 앤드 터보 필리얼 아프 맨 디젤 앤드 터보 에스이 티스크랜드 대형 터보차징 2 행정 압축 점화 내연기관용 릴리프 밸브
CN108087119B (zh) * 2016-11-22 2019-09-06 曼能解决方案（曼能解决方案德国股份公司）分公司 大型涡轮增压两冲程压燃式内燃机的安全阀

Also Published As

Publication number Publication date
DE3230133A1 (de) 1984-02-16
EP0103064A3 (fr) 1984-12-19

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

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Effective date: 19860702

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CRAMER, HANS

Inventor name: GOEBEL, HUGO