EP3212909A1 - Internal combustion engine, pre-chamber insert, and fuel injector - Google Patents
Internal combustion engine, pre-chamber insert, and fuel injectorInfo
- Publication number
- EP3212909A1 EP3212909A1 EP15781600.0A EP15781600A EP3212909A1 EP 3212909 A1 EP3212909 A1 EP 3212909A1 EP 15781600 A EP15781600 A EP 15781600A EP 3212909 A1 EP3212909 A1 EP 3212909A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- gas
- cylinder head
- internal combustion
- combustion engine
- 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.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 37
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
- F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
- F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
-
- 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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Definitions
- the invention relates to an internal combustion engine according to the preamble of claim 1. Furthermore, the invention relates to a prechamber insert for a gas engine according to the preamble of claim 7 and a fuel injector for a diesel engine according to the preamble of claim 10.
- DE 10 2012 203 700 A1 designed as a gas engine internal combustion engine with at least one cylinder is known.
- the respective cylinder of the gas engine has a main combustion chamber and a prechamber, the prechamber being provided by a prechamber insert.
- the antechamber insert is also referred to as a pre-chamber holder.
- the prechamber insert provides the prechamber, furthermore, the prechamber insert receives relevant assemblies for the gas supply and gas ignition. To the gas supply serving assemblies counts a check valve, to the components relevant for the gas ignition counts a spark plug.
- the prechamber insert is mounted according to DE 10 2012 203 700 A1 on a cylinder head of the respective cylinder between gas exchange valves of the respective cylinder, wherein the prechamber insert is inserted in a recess in the cylinder head of the respective cylinder and sealed relative to the cylinder head.
- the Vorschlinger has a cylindrical shape and therefore over a circular in cross-section contour.
- the present invention has the object to provide a novel internal combustion engine such as a gas engine, a novel Vorschgreg for a gas engine and a novel fuel injector for a diesel engine.
- an internal combustion engine according to claim 1 an inserted into the recess in the cylinder head of the respective cylinder portion of the respective assembly, which serves for fuel supply and / or fuel ignition is contoured oval in cross-section, wherein a lying in the sealing area boundary surface of this section of the respective assembly in the circumferential direction continuous convex contoured outward is contoured.
- an assembly serving for fuel supply and / or fuel ignition at the section via which it is inserted into the recess in the cylinder head is no longer circular in cross-section but rather oval according to the invention.
- the respective fuel supply and / or fuel ignition assembly carries axially offset seals at the boundary surface in the sealing area, namely a lower seal facing the main combustion chamber and an upper gasket remote from the main combustion chamber. The seals allow a good seal of the fuel supply and / or fuel ignition assembly in the cylinder head.
- a gas guide serving check valve of Vorschnotes is next to a gas ignition serving spark plug of Vorschnotes such above a prechamber of Vorammerer textees taken in Vorhunter nutrition that the check valve below the lower Seal is positioned.
- a gas feed bore serving to guide the gas, via which gas can be conducted in the direction of the prechamber of the respective prechamber insert, opens at the boundary surface in the sealing region between the lower seal and the upper seal.
- the prechamber insert according to the invention is in claim 7 and the fuel injector according to the invention is defined in claim 10.
- FIG. 1 shows a cross section through a cylinder of an inventive, designed as a gas engine internal combustion engine in the region of a Vorschmonyers of the cylinder.
- FIG. 2 shows a plan view of a pre-chamber insert according to the invention of the gas engine of FIG. 1;
- FIG. 3 shows a perspective view of the antechamber insert.
- the present invention relates to a preferably designed as a gas engine internal combustion engine and a Vorschgan for a gas engine.
- the invention can also be used in other internal combustion engines, such as diesel engines, in particular in the area of fuel injectors of diesel engines.
- the invention will be described with reference to Figs. 1 to 3 for the preferred application of a gas engine and a prechamber insert for a gas engine.
- Fig. 1 shows a cross section through a gas engine 10 in the region of a cylinder 1 1 of the gas engine 10, wherein from the cylinder 1 1, a cylinder head 12 is shown.
- gas exchange valves 13 are formed, which, starting from a camshaft, can be opened and closed.
- the cylinder head 12 defines at least in sections a main combustion chamber 14 of the respective cylinder 1 1 below.
- the cylinder 1 1 of the gas engine 10 is associated with a Vorschschdonsky 15, which forms a pre-chamber 16 for the cylinder 1 1 and also for the gas supply and for the
- Gas ignition carries relevant components.
- the Vorschmon 15 each shown in isolation.
- a check valve 17 wherein a spark plug 18 counts among the components of the prechamber insert 15 which are relevant for the gas ignition.
- the Vorschnet 15 is mounted on the cylinder head 12 of the cylinder 1 1 of the gas engine 10 such that the Vorschdon 15 is inserted into a recess 19 in the cylinder head 12 of the respective cylinder 1 1 and sealed relative to the cylinder head 12, wherein the Vorhuntani 19 on the cylinder head 12 in Area between the gas exchange valves 13 of the respective cylinder 1 1 of the gas engine 10 is receiving.
- the oval contouring of projecting into the recess 19 of the cylinder head 12 portion 20 of the Vorschdones 15, the space available on the cylinder head 12 space can be optimally utilized, in particular, the check valve 17 of the Vorschvones 15 are positioned at a small distance to the prechamber 16 of the Vorschrienes 15 so that a bore 22 of the prechamber insert 15 extending between the check valve 17 and the pre-chamber 16 and serving to guide the gas can be executed with minimum length and thus minimal volume. This makes it possible to introduce gas with high precision into the antechamber 16 of the prechamber insert 15.
- seals 23 and 24 are preferably O-ring seals or, alternatively, molded seals.
- the gas guide serving check valve 15 of the Vorschnoues 15 is shown in FIG. 3 laterally adjacent to the spark plug 18 of the Vorschnoues 15, which is used for gas ignition, and above the pre-chamber 16 of the Vorschnoues 15 in the Vorhuntbor 15, namely below the lower seal 24th
- a gas supply bore 25 serving to guide the gas opens with a recess or opening 26 at the boundary surface 21 of the pre-chamber insert 15 located in the sealing area between the two seals 23 and 24.
- fuel injectors can be designed in an analogous manner.
- a fuel injector is mounted on a cylinder head of a cylinder of the diesel engine such that the fuel! Njektor, in particular an injector sleeve thereof, is inserted into a recess in the cylinder head of the cylinder and sealed against the same.
- a section of the fuel injector, in particular the injector sleeve, which can be inserted into the recess in the cylinder head of the cylinder is contoured oval in cross-section, wherein a boundary surface of this section of the fuel injector, in particular the injector sleeve lying in the sealing region, extends continuously convexly outward in the circumferential direction is curved contoured.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014016127.7A DE102014016127A1 (en) | 2014-10-30 | 2014-10-30 | Internal combustion engine, prechamber insert and fuel injector |
PCT/EP2015/072637 WO2016066365A1 (en) | 2014-10-30 | 2015-09-30 | Internal combustion engine, pre-chamber insert, and fuel injector |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3212909A1 true EP3212909A1 (en) | 2017-09-06 |
Family
ID=54330731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15781600.0A Ceased EP3212909A1 (en) | 2014-10-30 | 2015-09-30 | Internal combustion engine, pre-chamber insert, and fuel injector |
Country Status (7)
Country | Link |
---|---|
US (1) | US20170328266A1 (en) |
EP (1) | EP3212909A1 (en) |
JP (1) | JP6483821B2 (en) |
KR (1) | KR101973301B1 (en) |
CN (1) | CN107110003B (en) |
DE (1) | DE102014016127A1 (en) |
WO (1) | WO2016066365A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11187141B2 (en) * | 2019-05-13 | 2021-11-30 | Vianney Rabhi | Ignition insert with an active pre-chamber |
AT526771B1 (en) * | 2023-02-28 | 2024-07-15 | Avl List Gmbh | LIQUID-COOLED CYLINDER HEAD |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5662082A (en) * | 1995-12-05 | 1997-09-02 | Compressor Engineering Corporation | Pre-combustion chamber for internal combustion engine and method of manufacture thereof |
US5791374A (en) * | 1995-12-07 | 1998-08-11 | Black; Art | Check valve for the pre-combustion chamber of an internal combustion engine |
JP2002266644A (en) * | 2001-03-13 | 2002-09-18 | Osaka Gas Co Ltd | Engine and auxiliary combustion chamber mechanism |
JP2002266643A (en) * | 2001-03-13 | 2002-09-18 | Osaka Gas Co Ltd | Engine, its operating method and auxiliary combustion chamber mechanism |
DE10159910A1 (en) * | 2001-12-06 | 2003-06-18 | Bosch Gmbh Robert | The fuel injector-spark plug combination |
DE102005008697B4 (en) * | 2005-02-25 | 2007-01-04 | Vw Mechatronic Gmbh & Co. Kg | Fuel injector with filter device |
JP4363369B2 (en) * | 2005-06-14 | 2009-11-11 | 株式会社デンソー | High pressure fuel seal structure of fuel injection device |
DE102008025744B4 (en) * | 2008-05-29 | 2015-12-17 | Volkswagen Ag | Internal combustion engine with clamping claw for fuel injection valves |
JP5167108B2 (en) * | 2008-12-24 | 2013-03-21 | 三菱重工業株式会社 | Gas engine with spark plug |
BRPI0921691A2 (en) * | 2008-12-26 | 2016-02-16 | Mitsubishi Heavy Ind Ltd | gas engine |
WO2012061397A2 (en) * | 2010-11-01 | 2012-05-10 | Mahle Powertrain, Llc | Turbulent jet ignition pre-chamber combustion system for spark ignition engines |
DE102012203700A1 (en) | 2012-03-08 | 2013-09-12 | Man Diesel & Turbo Se | Device for releasing a flow cross-section of a gas line |
-
2014
- 2014-10-30 DE DE102014016127.7A patent/DE102014016127A1/en not_active Withdrawn
-
2015
- 2015-09-30 CN CN201580059041.0A patent/CN107110003B/en not_active Expired - Fee Related
- 2015-09-30 WO PCT/EP2015/072637 patent/WO2016066365A1/en active Application Filing
- 2015-09-30 US US15/519,922 patent/US20170328266A1/en not_active Abandoned
- 2015-09-30 KR KR1020177013427A patent/KR101973301B1/en active IP Right Grant
- 2015-09-30 EP EP15781600.0A patent/EP3212909A1/en not_active Ceased
- 2015-09-30 JP JP2017523382A patent/JP6483821B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2016066365A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR101973301B1 (en) | 2019-04-26 |
JP6483821B2 (en) | 2019-03-13 |
CN107110003B (en) | 2020-11-03 |
WO2016066365A1 (en) | 2016-05-06 |
KR20170071570A (en) | 2017-06-23 |
CN107110003A (en) | 2017-08-29 |
US20170328266A1 (en) | 2017-11-16 |
DE102014016127A1 (en) | 2016-05-04 |
JP2017534016A (en) | 2017-11-16 |
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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 |
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17P | Request for examination filed |
Effective date: 20170511 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20180927 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MAN ENERGY SOLUTIONS SE |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20190802 |