EP0509372A1 - Verfahren zur Brennstoffeinspritzung für einen Dieselmotor mit Voreinspritzung - Google Patents

Verfahren zur Brennstoffeinspritzung für einen Dieselmotor mit Voreinspritzung Download PDF

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Publication number
EP0509372A1
EP0509372A1 EP92105985A EP92105985A EP0509372A1 EP 0509372 A1 EP0509372 A1 EP 0509372A1 EP 92105985 A EP92105985 A EP 92105985A EP 92105985 A EP92105985 A EP 92105985A EP 0509372 A1 EP0509372 A1 EP 0509372A1
Authority
EP
European Patent Office
Prior art keywords
liquid fuel
injection
fuel
volume
pump
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
EP92105985A
Other languages
English (en)
French (fr)
Other versions
EP0509372B1 (de
Inventor
Robert Herrmann
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 France SAS
Original Assignee
SEMT Pielstick SA
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 SEMT Pielstick SA filed Critical SEMT Pielstick SA
Publication of EP0509372A1 publication Critical patent/EP0509372A1/de
Application granted granted Critical
Publication of EP0509372B1 publication Critical patent/EP0509372B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0228—Adding fuel and water emulsion
    • 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
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
    • 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
    • F02B7/00—Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel
    • F02B7/02—Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel the fuel in the charge being liquid
    • 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
    • F02B2201/00—Fuels
    • F02B2201/06—Dual fuel applications
    • F02B2201/064—Liquid and gas
    • 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

Definitions

  • the present invention relates to a fuel injection method for an internal combustion engine of the Diesel type using a gaseous main fuel and a secondary liquid fuel in the form of a pilot injection intended to initiate the combustion of the main fuel. This process is also called dual fuel injection.
  • the known injection process for engines of this type consists in initializing the combustion of the main fuel (gas) by injection of a liquid fuel representing 5 to 10% of the maximum volume that can be injected by the pump. injection.
  • This injection pump is designed to allow the engine to reach its maximum power only from liquid fuel, this in case of temporary absence of gaseous fuel.
  • the minimum value of the volume of liquid fuel injected is limited by the geometric precision of the construction of the components of the injection pump and the injector. This precision determines the lower threshold below which it is no longer possible to guarantee the balance between the cylinders and the regularity of injection of a volume sufficient to initiate combustion (i.e. approximately the equivalent of 2% of the maximum energy introductory).
  • the minimum value of the volume of liquid fuel injected is further limited by the dimensioning of the injector sprayer holes which are optimized to ensure correct spraying at full engine power. They then prove to be too large to spray under good conditions a few percent of the maximum flow rate.
  • the invention therefore relates to a fuel injection method for an internal combustion engine of the Diesel type using a gaseous main fuel and a secondary liquid fuel in the form of a pilot injection intended to initiate the combustion of the main fuel, the liquid fuel being injected by an injection pump designed to allow the engine to reach its maximum power only from liquid fuel, characterized in that the pilot injection consists of a mixture of water and liquid fuel.
  • Dual oil engines generally use, for liquid fuel, an injection pump per engine cylinder, each cylinder having its injector. The arrival of gas in a cylinder is done with its own distribution system.
  • the liquid fuel is injected by an injection pump designed to allow the engine to reach its maximum power only from the liquid fuel.
  • An advantage of the invention is that no modification is to be made to the engine, the water-fuel mixture can be prepared outside the engine by a known process.
  • the volume of liquid fuel contained in the mixture can be reduced to the minimum thermodynamically necessary volume and compatible with the precision performance of the injection pump and the dimensioning of the injector sprayer holes. This minimum volume can be easily determined by tests.
  • a volume of liquid fuel in the mixture representing 2% to 7% of the maximum volume that can be injected by the pump is entirely satisfactory for the smooth running of the engine.
  • the volume of the pilot injection that is to say the quantity of mixture injected, can then represent between 5 and 10% of the maximum volume injectable by the pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP92105985A 1991-04-12 1992-04-07 Verfahren zur Brennstoffeinspritzung für einen Dieselmotor mit Voreinspritzung Expired - Lifetime EP0509372B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104514 1991-04-12
FR9104514A FR2675208B1 (fr) 1991-04-12 1991-04-12 Procede d'injection de combustibles pour un moteur diesel utilisant une injection pilote.

Publications (2)

Publication Number Publication Date
EP0509372A1 true EP0509372A1 (de) 1992-10-21
EP0509372B1 EP0509372B1 (de) 1995-05-24

Family

ID=9411785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105985A Expired - Lifetime EP0509372B1 (de) 1991-04-12 1992-04-07 Verfahren zur Brennstoffeinspritzung für einen Dieselmotor mit Voreinspritzung

Country Status (10)

Country Link
US (1) US5243932A (de)
EP (1) EP0509372B1 (de)
JP (1) JP3307979B2 (de)
KR (1) KR100240609B1 (de)
CN (1) CN1028791C (de)
AT (1) ATE123110T1 (de)
DE (1) DE69202617T2 (de)
DK (1) DK0509372T3 (de)
FI (1) FI104115B (de)
FR (1) FR2675208B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999042713A1 (en) * 1998-02-18 1999-08-26 Caterpillar Inc. Method of operating an engine with a mixture of gaseous fuel and emulsified pilot fuel to reduce nitrogen oxide emissions
EP3080413A4 (de) * 2013-12-12 2017-10-11 Mosaic Technology Development Pty Ltd Fahrzeugbrennstoffsystem

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337048C2 (de) * 1993-10-29 1996-01-11 Daimler Benz Ag Kraftstoffeinspritzanlage für eine Brennkraftmaschine
US6230683B1 (en) * 1997-08-22 2001-05-15 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control
WO1998007973A1 (en) 1996-08-23 1998-02-26 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control
US5682842A (en) * 1996-09-24 1997-11-04 Caterpillar Inc. Fuel control system for an internal combustion engine using an aqueous fuel emulsion
US5765537A (en) * 1997-01-17 1998-06-16 Caterpillar Inc. Fuel recirculation system
US6095101A (en) * 1997-01-29 2000-08-01 Man B&W Diesel A/S Internal combustion engine of the diesel type for combustion of gas, and a method of supplying such an engine with fuel
CN1292153C (zh) 1998-02-23 2006-12-27 卡明斯发动机公司 带有优化燃烧控制的预混合充量压缩点火发动机
US6032617A (en) * 1998-05-27 2000-03-07 Caterpillar Inc. Dual fuel engine which ignites a homogeneous mixture of gaseous fuel, air, and pilot fuel
US6378487B1 (en) 2000-09-01 2002-04-30 International Truck And Engine Corporation Method and apparatus for pre-pilot fuel injection in diesel internal combustion engines
DE10315149A1 (de) 2003-04-03 2004-10-14 Daimlerchrysler Ag Brennkraftmaschine mit Selbstzündung
US6863034B2 (en) 2003-01-17 2005-03-08 Robert D. Kern Method of controlling a bi-fuel generator set
AU2003901841A0 (en) * 2003-04-16 2003-05-01 Orbital Australia Pty Ltd An improved fuel reformer and mixing chamber therefor
CN1312393C (zh) * 2004-02-12 2007-04-25 上海交通大学 柴油机双燃油泵喷射两种燃料的喷射系统
AU2010265846A1 (en) * 2009-06-23 2013-02-07 Horley, Anthony James System and method of injecting combustible gas in liquid form into a diesel engine
WO2023272392A1 (en) * 2021-06-29 2023-01-05 Westport Fuel Systems Canada Inc. Apparatus and method for injecting a pilot fuel into an internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383315A1 (fr) * 1977-03-07 1978-10-06 Feuerman Arnold Moteur a combustion interne comprenant une source d'emulsion eau-dans-hydrocarbure
EP0027682A1 (de) * 1979-10-22 1981-04-29 Caterpillar Tractor Co. Brennstoffeinspritzapparat
EP0237071A1 (de) * 1986-03-14 1987-09-16 Societe D'etudes De Machines Thermiques S.E.M.T. Einspritzvorrichtung für Brennkraftmaschinen zum Einspritzen zweier Brennstoffe

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US4403944A (en) * 1979-10-10 1983-09-13 Pyykkoenen Pentti Auxiliary device for oil burner for mixing water and oil for combustion
GB2126650B (en) * 1982-08-31 1988-02-10 George Stan Baranescu I c engine injection system providing a stratified charge of two fuels
CA1226183A (en) * 1982-10-30 1987-09-01 Timothy J. Bedford Fuel oil injection engine
IT1168927B (it) * 1983-05-03 1987-05-20 Ernesto Marelli Apparecchiatura per l'emulsione e l'atomizzazione di combustibili fluidi con fluidi secondari,in particolare acqua
GB8425577D0 (en) * 1984-10-10 1984-11-14 Flintheath Ltd Fuel control system
DE3523687C1 (de) * 1985-07-03 1986-07-03 Daimler-Benz Ag, 7000 Stuttgart Verfahren zur Erzeugung einer Dieselkraftstoff-Wasser-Emulsion fuer einen Dieselmotor
JPH0654106B2 (ja) * 1985-10-26 1994-07-20 マツダ株式会社 エンジンの燃料噴射装置
CH672661A5 (de) * 1987-03-17 1989-12-15 Sulzer Ag
JPH0654101B2 (ja) * 1987-06-02 1994-07-20 三菱重工業株式会社 ガス焚きディ−ゼルエンジンのガス供給装置
US4831993A (en) * 1987-12-28 1989-05-23 Erik Kelgard Method of operating carburetted dual-fuel engines with diesel pilot oil injection
US4955326A (en) * 1989-04-12 1990-09-11 Cooper Industries, Inc. Low emission dual fuel engine and method of operating same
US5024195A (en) * 1990-06-07 1991-06-18 Pien Pao C Multi-fuel compression-ignition engine and fuel injection pump therefor
US5140959A (en) * 1991-01-28 1992-08-25 Durbin Enoch J Method and apparatus for operation of a dual fuel compression ignition combustion engine
US5136986A (en) * 1991-04-26 1992-08-11 Energy Conversions, Inc. Dual fuel injection structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383315A1 (fr) * 1977-03-07 1978-10-06 Feuerman Arnold Moteur a combustion interne comprenant une source d'emulsion eau-dans-hydrocarbure
EP0027682A1 (de) * 1979-10-22 1981-04-29 Caterpillar Tractor Co. Brennstoffeinspritzapparat
EP0237071A1 (de) * 1986-03-14 1987-09-16 Societe D'etudes De Machines Thermiques S.E.M.T. Einspritzvorrichtung für Brennkraftmaschinen zum Einspritzen zweier Brennstoffe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 316 (M-631), 15 octobre 1987; & JP - A - 6299667 (MAZDA) 09.05.1987 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999042713A1 (en) * 1998-02-18 1999-08-26 Caterpillar Inc. Method of operating an engine with a mixture of gaseous fuel and emulsified pilot fuel to reduce nitrogen oxide emissions
EP3080413A4 (de) * 2013-12-12 2017-10-11 Mosaic Technology Development Pty Ltd Fahrzeugbrennstoffsystem

Also Published As

Publication number Publication date
US5243932A (en) 1993-09-14
CN1066909A (zh) 1992-12-09
KR920020069A (ko) 1992-11-20
KR100240609B1 (ko) 2000-01-15
FI104115B1 (fi) 1999-11-15
ATE123110T1 (de) 1995-06-15
EP0509372B1 (de) 1995-05-24
FR2675208B1 (fr) 1993-06-11
JPH06159108A (ja) 1994-06-07
DE69202617D1 (de) 1995-06-29
FI104115B (fi) 1999-11-15
FI921621A0 (fi) 1992-04-10
DE69202617T2 (de) 1995-09-21
FI921621A (fi) 1992-10-13
CN1028791C (zh) 1995-06-07
FR2675208A1 (fr) 1992-10-16
DK0509372T3 (da) 1995-08-28
JP3307979B2 (ja) 2002-07-29

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