EP0528150A1 - Système et méthode pour alimenter un moteur diesel brûlant une mixture de petites particules et de combustible - Google Patents

Système et méthode pour alimenter un moteur diesel brûlant une mixture de petites particules et de combustible Download PDF

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Publication number
EP0528150A1
EP0528150A1 EP92111211A EP92111211A EP0528150A1 EP 0528150 A1 EP0528150 A1 EP 0528150A1 EP 92111211 A EP92111211 A EP 92111211A EP 92111211 A EP92111211 A EP 92111211A EP 0528150 A1 EP0528150 A1 EP 0528150A1
Authority
EP
European Patent Office
Prior art keywords
fuel
oil
valve
injection valve
pressure 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
EP92111211A
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German (de)
English (en)
Other versions
EP0528150B1 (fr
Inventor
Hiroshi c/o Nagasaki Res. & Dev. Center Nakagawa
Yuuji c/o Nagasaki Res. & Dev. Center Oda
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0528150A1 publication Critical patent/EP0528150A1/fr
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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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • 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
    • 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
    • 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 system and a method for feeding fuel to a diesel engine which make use of fuel oil containing fine particles of solid fuel such as pulverized coal or the like.
  • fuel oil is fed from a fuel tank 101 through a fuel feed pump 102 to a fuel injection pump 103, then it is introduced into a fuel valve 108 as high-pressure fuel, and it is injected from a nozzle hole 109 into a combustion chamber of the engine, but in the case where in place of fuel for use in a diesel engine, mixed fuel consisting of pulverized coal and water or fuel oil is pressurized to a high pressure and injected to be burnt, seizure of a plunger would occur due to solid material of the mixed fuel within a plunger chamber and continued operations of the engine could not be effected.
  • reference numeral 104 designates a plunger accommodated within a barrel 105 of a fuel injection pump 103
  • numeral 106 designates a delivery valve of the fuel injection pump 103
  • numeral 107 designates a feed pipe of fuel
  • numeral 110 designates a needle valve of the fuel injection valve 108
  • numeral 111 designates an oil reservoir provided on the upstream side of the needle valve 110 within the fuel injection valve 108
  • numeral 112 designates a spring for biasing the needle valve 110.
  • a fuel feed system for a fine-particle-mixed fuel burning diesel engine in which fuel oil containing fine particles of solid fuel is employed for a diesel engine to be burnt, which comprises an injection valve (9) including a needle valve (11) for opening and closing a path between an oil reservoir (12) and a nozzle hole (10), a fuel feed pipe (15) between the oil reservoir (12) of the injection valve and a fuel tank (19) for fuel containing fine particles, a control valve (16) for controlling the amount of fuel flowing through the fuel feed pipe (15) a check valve (13) provided within the injection valve (9) to allow only the flow of fuel flowing from the control valve (16) towards the oil reservoir (12), a high-pressure pump (3) for pressurizing oil within an oil tank (1) and feeding it to the injection valve (9), a pressure wave propagation pipe (8) connecting between a delivery port of the high-pressure pump (3) and the oil reservoir (12) in the injection valve (9), a circulation valve (21) for opening and closing the pressure wave propagation pipe (8), and
  • the above-feature fuel feed system for a fine-particle-mixed fuel burning diesel engine which comprises a control rack detector (23) for detecting a position of a control rack (24) which controls a delivery amount of the high-pressure pump (3) and for inputting a detection signal to the control device (20).
  • a method for feeding fuel to a fine-particle-mixed fuel burning diesel engine in which fuel oil containing fine particles of solid fuel is employed for a diesel engine to be burnt, which comprises steps of feeding fuel containing fine particles of solid fuel within a fuel tank (19) to an oil reservoir (12) within an injection valve from the side of a needle valve seat of the injection valve through a check valve (13) by means of a pump (18), pressurizing the fuel within the oil reservoir by high-pressure oil which has been pressurized by a high-pressure pump (3) and which has passed through a pressure wave propagation pipe (8), and injecting the fuel through a nozzle hole (10) of the injection valve.
  • the last-featured method for feeding fuel to a fine-particle-mixed fuel burning diesel engine which comprises the steps of inputting a signal issued from a control rack detector (23) provided to detect a position of a control rack (24) for controlling a delivery amount of the high-pressure pump (3) to a control device (20), controlling a sending amount of fuel containing fine particles of solid fuel sent out from the pump (18) so as to meet with the delivery amount of the high-pressure pump (3) by controlling a control valve (16) by means of the control device (20), and sending the fuel containing particles of solid fuel into the oil reservoir (12) within the injection valve through the check valve (13).
  • fuel containing fine particles of the amount controlled by the control valve which is in turn controlled by the control device, is sent from the fuel tank through the fuel feed pipe to the oil reservoir in the fuel injection valve.
  • the oil within the oil tank is pressurized by the high-pressure pump, and a pressure wave of the oil is transmitted to the above-mentioned oil reservoir through the pressure wave propagation pipe, and the above-mentioned fuel containing fine particles which is present within the oil reservoir is injected through the nozzle hole of the injection valve.
  • the oil sent to the injection valve through the circulation valve controlled by the control device is returned to the oil tank, and so, deterioration of the oil can be precluded.
  • fuel containing fine particles is never fed to the high-pressure pump, hence seizure of the plunger of the same pump does not occur, and also, only the fuel containing fine particles is injected through the nozzle hole of the injection valve.
  • a detection signal issued from the control rack detector for detecting a position of the control rack which controls a delivery amount of the high-pressure pump is input to the control device, and the amount of fuel containing fine particles to be fed to the oil reservoir is controlled on the basis of the amount of oil delivered from the high-pressure pump by the control device, only the same fuel containing fine particles is surely injected through the nozzle hole of the injection valve, and the oil propagating the pressure wave can be prevented from being injected through the nozzle hole.
  • reference numeral 1 designates an oil tank which accommodates oil for propagating a pressure wave to a fuel valve
  • numeral 2 designates an oil feed pump
  • numeral 3 designates a high-pressure injection pump
  • numeral 4 designates a plunger
  • numeral 5 designates a barrel
  • numeral 6 designates a delivery valve
  • numeral 7 designates a pressure-regulating check valve
  • numeral 8 designates a pressure wave propagation pipe
  • numeral 9 designates a fuel injection valve
  • numeral 10 designates a nozzle hole
  • numeral 11 designates a needle valve
  • numeral 12 designates an oil reservoir section
  • numeral 13 designates a check valve
  • numeral 14 designates a spring
  • numeral 15 designates a feed pipe
  • numeral 16 designates a control valve
  • numeral 17 designates a fuel feed pipe
  • numeral 18 designates a fuel feed pipe
  • numeral 19 designates a fuel tank for fuel containing fine particles of coal
  • numeral 20 designates a control
  • Fuel containing fine particles of coal is fed by the fuel feed pump 18 from the fuel tank 19 through the fuel feed pipe 17 and enters the control valve 16, and during a pause period of fuel injection and after circulation of the oil in the pressure propagation pipe 8 has finished, a predetermined amount of fuel containing fine particles of coal is sent into the fuel injection valve 9 through the feed pipe 15.
  • the circulation valve 21 is opened via the drive motor 21' as controlled by the control device 20, thereby the oil for use in pressure wave propagation is circulated via the circulation pipe 22 to the oil tank 1, and so, deterioration of the oil can be prevented.
  • fuel containing fine particles of solid fuel can be injected at a high pressure from an injection valve into a combustion chamber without introducing such fine-particle-mixed fuel into a barrel (plunger chamber) in a high-pressure pump.
  • seizure of a high-pressure pump plunger caused by fine particles of solid fuel having a high hardness can be precluded, and in addition, since provision is made such that the oil for propagating a pressure wave from a high-pressure pump is also circulated, the fault in propagation of a hydraulic pressure due to deterioration of oil can be also eliminated.

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)
EP92111211A 1991-07-23 1992-07-02 Système et méthode pour alimenter un moteur diesel brûlant une mixture de petites particules et de combustible Expired - Lifetime EP0528150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP205630/91 1991-07-23
JP3205630A JP2862104B2 (ja) 1991-07-23 1991-07-23 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

Publications (2)

Publication Number Publication Date
EP0528150A1 true EP0528150A1 (fr) 1993-02-24
EP0528150B1 EP0528150B1 (fr) 1996-06-05

Family

ID=16510074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111211A Expired - Lifetime EP0528150B1 (fr) 1991-07-23 1992-07-02 Système et méthode pour alimenter un moteur diesel brûlant une mixture de petites particules et de combustible

Country Status (5)

Country Link
EP (1) EP0528150B1 (fr)
JP (1) JP2862104B2 (fr)
KR (1) KR970002090B1 (fr)
DE (1) DE69211250T2 (fr)
DK (1) DK0528150T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711735A1 (fr) * 1993-10-29 1995-05-05 Daimler Benz Ag Système d'injection de carburant pour un moteur à combustion interne.
DE10330511A1 (de) * 2003-07-05 2005-02-10 Man B & W Diesel Ag Verbrennungskraftmaschine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0747923A1 (fr) * 1995-06-09 1996-12-11 VIDEOCOLOR S.p.A. Arrangement de verrouillage pour une bobin de déviation
KR102028782B1 (ko) * 2012-03-29 2019-10-04 코몬웰스 싸이언티픽 엔드 인더스트리얼 리서치 오가니제이션 중질 및 입자 적재 연료의 분사
CN105715436B (zh) * 2016-01-14 2016-11-23 吉林大学 一种车用发动机液体燃料定量混合装置
CN105840381B (zh) * 2016-03-18 2018-08-10 江苏大学 天然气/柴油双燃料喷射混合特性研究装置及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924128A1 (de) * 1979-06-15 1980-12-18 Motoren Werke Mannheim Ag Einrichtung zur einspritzung von zuendkraftstoff einerseits und zuendunwilligem hauptkraftstoff andererseits fuer dieselmotoren
EP0104368A1 (fr) * 1982-08-31 1984-04-04 George Stan Baranescu Système d'injection avec charge de combustible stratifiée
US4699103A (en) * 1985-01-28 1987-10-13 Nippondenso Co., Ltd. Fuel injection system
EP0282819A2 (fr) * 1987-03-15 1988-09-21 Mitsubishi Jukogyo Kabushiki Kaisha Système d'injection pour un moteur à deux carburants
EP0418601B1 (fr) * 1989-09-21 1992-11-11 Robert Bosch Gmbh Dispositif d'injection pour moteurs diesel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4862837A (en) * 1988-04-21 1989-09-05 Defense Research Technologies, Inc. Fuel injection of coal slurry using vortex nozzles and valves

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924128A1 (de) * 1979-06-15 1980-12-18 Motoren Werke Mannheim Ag Einrichtung zur einspritzung von zuendkraftstoff einerseits und zuendunwilligem hauptkraftstoff andererseits fuer dieselmotoren
EP0104368A1 (fr) * 1982-08-31 1984-04-04 George Stan Baranescu Système d'injection avec charge de combustible stratifiée
US4699103A (en) * 1985-01-28 1987-10-13 Nippondenso Co., Ltd. Fuel injection system
EP0282819A2 (fr) * 1987-03-15 1988-09-21 Mitsubishi Jukogyo Kabushiki Kaisha Système d'injection pour un moteur à deux carburants
EP0418601B1 (fr) * 1989-09-21 1992-11-11 Robert Bosch Gmbh Dispositif d'injection pour moteurs diesel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 163 (M-487)(2219) 11 June 1986 & JP-A-61 014 465 ( ISUZU ) 22 January 1986 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711735A1 (fr) * 1993-10-29 1995-05-05 Daimler Benz Ag Système d'injection de carburant pour un moteur à combustion interne.
DE10330511A1 (de) * 2003-07-05 2005-02-10 Man B & W Diesel Ag Verbrennungskraftmaschine

Also Published As

Publication number Publication date
DK0528150T3 (da) 1996-10-21
EP0528150B1 (fr) 1996-06-05
KR970002090B1 (ko) 1997-02-22
KR930002656A (ko) 1993-02-23
DE69211250D1 (de) 1996-07-11
DE69211250T2 (de) 1996-12-12
JP2862104B2 (ja) 1999-02-24
JPH0526126A (ja) 1993-02-02

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