EP1496243A1 - Moteur à combustion interne - Google Patents

Moteur à combustion interne Download PDF

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Publication number
EP1496243A1
EP1496243A1 EP04015163A EP04015163A EP1496243A1 EP 1496243 A1 EP1496243 A1 EP 1496243A1 EP 04015163 A EP04015163 A EP 04015163A EP 04015163 A EP04015163 A EP 04015163A EP 1496243 A1 EP1496243 A1 EP 1496243A1
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
valve
fuel
injection
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
EP04015163A
Other languages
German (de)
English (en)
Other versions
EP1496243B1 (fr
Inventor
Peter Dr. Eilts
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 SE
Original Assignee
MAN B&W Diesel GmbH
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 MAN B&W Diesel GmbH filed Critical MAN B&W Diesel GmbH
Publication of EP1496243A1 publication Critical patent/EP1496243A1/fr
Application granted granted Critical
Publication of EP1496243B1 publication Critical patent/EP1496243B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar thereto
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/02—Pumps peculiar thereto
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery valves

Definitions

  • the invention relates to an internal combustion engine, in particular a self-igniting internal combustion engine, the by means of an injection system with conventional fuel and a partially replacing this orimulsion can be acted upon.
  • Orimulsion is a fuel of which there are large occurrences and the cost is offered. It is therefore desirable to use this fuel on a larger scale. Orimulsion, however, contains comparatively large quantities of abrasive Components that are wear-promoting. The removal of this Ingredients are very complex and not fully developed possible. There is therefore a risk that it may be when using Orimulsion to rapid wear within the injection system can come. The consequence of this is a comparatively short life and increased maintenance and repair costs.
  • an internal combustion engine in particular a self-igniting internal combustion engine in proposal
  • the wear-promoting orimulsion can here before the injection process a given amount of conventional fuel displace from the injection valve and the associated pressure source to lead back without even coming into contact with it. This results in practically outside the pressure source for conventional fuel adjoining liquid columns from conventional fuel and orimulsion.
  • the injection begins, being first a downstream from the connection between the Orimulsionstechnisch and the fuel line still remaining on conventional Fuel, then the orimulsion and then again conventional Fuel can be injected.
  • the invention Measures therefore advantageously ensure that that the wear-promoting orimulsion only in contact with the Injection valve comes, which is less abrasive particles is sensitive, and from the pressure source for conventional fuel, it is very abrasive against abrasive particles sensitive injection pump can act, is kept away.
  • This restriction of the contact of Orimulsioin on the less sensitive injector can reduce the wear problems keep comparatively low, which is beneficial to avoidance of maintenance and repair costs and affects ensures a comparatively long service life.
  • the Orimulsion associated pressure source as a rotary pump having trained low pressure pump.
  • This type of pump is less susceptible to wear than piston pumps.
  • For control can said pump be followed by a shut-off valve, with its control device in time with the internal combustion engine is operable.
  • the low pressure pump can be practical be permanently in operation.
  • the shut-off valve can be controlled so that the Orimulsionstechnisch at every stroke of the internal combustion engine with an Orimulsionsmenge is applied, at most the Capacity of the fuel line corresponds. This will In a simple way ensures that no orimulsion on the Fuel line in this upstream pressure source for conventional fuel passes.
  • Main field of application of the invention are according to the diesel principle working engines.
  • the basic structure of such engines is known per se and therefore needs in the present context no further explanation.
  • Each cylinder of such an engine is an injection system 1 of assigned to the figure 1 underlying type.
  • This contains one Injector 2, which with from an associated pressure source supplied conventional fuel, e.g. Diesel, and with of an associated pressure source supplied Orimulsion acted upon is.
  • the source of pressure for conventional fuel is in Example shown as a kind of high-pressure pump constructed injection pump 3 is formed, the one in the engine cycle drivable piston, a so-called plunger 4, the limited a pump chamber 5.
  • an injection pump could of course also be controlled by valves be provided common rail.
  • the pressure source for Orimulsion is by a suction side to a Orimulsionstank 6 connected pump 7 formed. It can is a rotary pump, preferably a screw pump, act.
  • the pump 7 is a shut-off valve 8 downstream, by an associated control device 9 in the engine cycle aufund is deductible.
  • the pump 7 can be permanently driven, wherein when the control valve 8 is closed, a short-circuit operation results.
  • the control valve 8 is useful as electromagnetic Slider valve formed.
  • the injection valve 2 has in a conventional manner a Injection nozzle 10, which is provided with nozzle holes, which means a nozzle needle 11 are closed. This is how best From Figures 2 and 3 can be removed from the fuel pressure in an attacked by her pressure chamber 12 against the force a return spring arrangement, etc. can be lifted from its seat.
  • a Nozzle needle 11 concentrically surrounding at a distance, in the area the parting line 14 between the housing of the injection nozzle 10 and the this provided valve housing provided ring line 15th connected to one of the pressure source for conventional Fuel coming fuel line 16 and one of the Pressure source for Orimulsion coming Orimulsions effet 17 open out.
  • the opening into the loop 15 sections of the Fuel line 16 and the Orimulsions effet 17 are as in Valve housing of the injector 2 provided, the nozzle needle 11 flanking bores 16a and 17a formed, which, as on best seen in Figure 1, in the region of the rear end of the Valve housing via a respective associated connection nipple 18 and 19 with a respective associated pressure source leading line section 16b and 17b are connected.
  • the pump chamber 5 of the injection pump 3 is about two parallel bores formed flow paths 20, 21 with the Pump output 23 connected to the line section 16b the fuel line 16 connects.
  • the two flow paths 20, 21 are provided with counter-rotating check valves 23, 24, of where one of the check valve 23, opens in the forward direction and one, here the check valve 24, closes in the forward direction and vice versa.
  • the flow paths 20, 21 with the associated Check valves 23, 24 are here in one in the injection pump 3 built by a pump outlet 23 containing Connection nipple held block provided.
  • the Orimulsionstechnisch 17 is with a forward direction opening check valve 25 provided. This is here in the area the connection of the connecting nipple 19 to the valve housing intended.
  • the fuel pressure that can be generated by the injection pump 3 is greater as needed to lift the nozzle needle 11 from its seat Pressure and greater than the opening pressure of the assigned, in Flow direction opening check valve 23.
  • the pump 7 producible pressure is greater than the opening pressure of in the Orimulsionstechnisch 17 arranged check valve 25 and the the injection pump 3 associated, in the return flow direction opening check valve 24, but smaller than the opening pressure the nozzle needle 11.
  • the downstream of the pump 7 check valve. 8 is controlled so that in each case between two strokes of the Injection pump 3 results in an opening phase.
  • Orimulsionstechnisch 7 associated shut-off valve 8 is appropriate so controlled that during an opening phase in the Injector 2 introduced Orimulsionsmenge at most the Capacity of the fuel line 16 possibly plus the Capacity of the loop 15 and the output 22 of the Injection pump 3, equivalent, so that in the fuel line penetrating orimulsion column not all the way to injection pump 3 comes and therefore no Orimulsion on the Flow path 21 can penetrate into the injection pump 3.
  • expedient is the capacity of the fuel line 16 therefore at least as large as the total injection quantity, thus creating a Penetration of Orimulsion into the injection pump particularly reliable is excluded.
  • the flow direction goes, as in Figure 3 by the Directional arrow 27 is indicated, to the nozzle openings of the Injection nozzle 10 back.
  • This is the previously on the diversion of Sting 13 gone from the loop 15 Orimulsion via the stub 13 and the pressure chamber 12 and the thereof outgoing nozzle holes 28 displaced, first in the the stub 13 and in the pressure chamber 12 still present conventional fuel and then the rejuvenating orimulsion be injected, which in turn is followed by conventional fuel is displaced.
  • the injection process is stopped when conventional fuel returns to the Injection occurs, that is, when the orimulsion completely out the stub 13, the pressure chamber 12 and the nozzle holes 28 is displaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP04015163A 2003-07-05 2004-06-29 Moteur à combustion interne Expired - Lifetime EP1496243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10330511 2003-07-05
DE10330511A DE10330511A1 (de) 2003-07-05 2003-07-05 Verbrennungskraftmaschine

Publications (2)

Publication Number Publication Date
EP1496243A1 true EP1496243A1 (fr) 2005-01-12
EP1496243B1 EP1496243B1 (fr) 2007-06-27

Family

ID=33441633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04015163A Expired - Lifetime EP1496243B1 (fr) 2003-07-05 2004-06-29 Moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1496243B1 (fr)
KR (1) KR100992057B1 (fr)
DE (2) DE10330511A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8596561B2 (en) 2011-08-31 2013-12-03 Caterpillar Inc. Dual fuel injector with hydraulic lock seal
CN103590947A (zh) * 2013-11-22 2014-02-19 中北大学 一种可控燃油温度的双油道喷油器
DK201670955A1 (en) * 2016-12-01 2018-02-05 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A fuel valve for injecting a liquid fuel into a a combustion chamber of a large compression-igniting turbocharged two-stroke internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2415988A1 (fr) 2010-08-06 2012-02-08 Caterpillar Motoren GmbH & Co. KG Moteur de turbocompresseur à deux phases

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301766A1 (fr) * 1987-07-28 1989-02-01 The British Petroleum Company p.l.c. Production d'émulsions de fuel-oil
DE3830380A1 (de) * 1987-09-11 1989-03-23 Intevep Sa Verfahren zur aufbereitung eines natuerlich vorkommenden viskosen kohlenwasserstoff-materials, dabei erhaltene emulsionen und deren aufbereitung sowie tensidzusammensetzungen zur durchfuehrung der aufbereitung
US5170751A (en) * 1990-05-23 1992-12-15 Mitsubishi Jukogyo Kabushiki Kaisha Water-injection diesel engine
JP2000291944A (ja) * 1999-04-08 2000-10-20 Ishikawajima Harima Heavy Ind Co Ltd オリマルジョン燃料供給装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126650B (en) * 1982-08-31 1988-02-10 George Stan Baranescu I c engine injection system providing a stratified charge of two fuels
DE3931456A1 (de) * 1989-09-21 1991-04-04 Bosch Gmbh Robert Einspritzeinrichtung fuer dieselmotoren
JP2772114B2 (ja) * 1990-05-23 1998-07-02 三菱重工業株式会社 水噴射ディーゼルエンジン
JP2862104B2 (ja) * 1991-07-23 1999-02-24 三菱重工業株式会社 微粒子混合燃料焚きディーゼルエンジンの燃料供給方法
DE19754515A1 (de) * 1997-12-09 1999-06-10 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301766A1 (fr) * 1987-07-28 1989-02-01 The British Petroleum Company p.l.c. Production d'émulsions de fuel-oil
DE3830380A1 (de) * 1987-09-11 1989-03-23 Intevep Sa Verfahren zur aufbereitung eines natuerlich vorkommenden viskosen kohlenwasserstoff-materials, dabei erhaltene emulsionen und deren aufbereitung sowie tensidzusammensetzungen zur durchfuehrung der aufbereitung
US5170751A (en) * 1990-05-23 1992-12-15 Mitsubishi Jukogyo Kabushiki Kaisha Water-injection diesel engine
JP2000291944A (ja) * 1999-04-08 2000-10-20 Ishikawajima Harima Heavy Ind Co Ltd オリマルジョン燃料供給装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8596561B2 (en) 2011-08-31 2013-12-03 Caterpillar Inc. Dual fuel injector with hydraulic lock seal
CN103590947A (zh) * 2013-11-22 2014-02-19 中北大学 一种可控燃油温度的双油道喷油器
CN103590947B (zh) * 2013-11-22 2016-04-27 中北大学 一种可控燃油温度的双油道喷油器
DK201670955A1 (en) * 2016-12-01 2018-02-05 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A fuel valve for injecting a liquid fuel into a a combustion chamber of a large compression-igniting turbocharged two-stroke internal combustion engine
DK179213B1 (en) * 2016-12-01 2018-02-05 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland A fuel valve for injecting a liquid fuel into a a combustion chamber of a large compression-igniting turbocharged two-stroke internal combustion engine

Also Published As

Publication number Publication date
EP1496243B1 (fr) 2007-06-27
DE10330511A1 (de) 2005-02-10
KR100992057B1 (ko) 2010-11-05
KR20050005752A (ko) 2005-01-14
DE502004004175D1 (de) 2007-08-09

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