KR20180038375A - Method for the start preparation and preferentially for the subsequent starting of an internal combustion engine designed as gas engine or dual-fuel engine - Google Patents

Method for the start preparation and preferentially for the subsequent starting of an internal combustion engine designed as gas engine or dual-fuel engine Download PDF

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KR20180038375A
KR20180038375A KR1020170124898A KR20170124898A KR20180038375A KR 20180038375 A KR20180038375 A KR 20180038375A KR 1020170124898 A KR1020170124898 A KR 1020170124898A KR 20170124898 A KR20170124898 A KR 20170124898A KR 20180038375 A KR20180038375 A KR 20180038375A
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fuel supply
individual cylinder
fuel
cylinder group
internal combustion
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KR102341738B1 (en
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사샤 슈톨
슈테판 카르너
니콜라우스 보에크호프
베네딕트 파펜베르거
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만 디젤 앤 터보 에스이
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0623—Failure diagnosis or prevention; Safety measures; Testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0605—Control of components of the fuel supply system to adjust the fuel pressure or temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • F02D19/105—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous operating in a special mode, e.g. in a liquid fuel only mode for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0082—Controlling each cylinder individually per groups or banks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • 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
    • F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
    • 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
    • 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
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system
    • F02D2041/225—Leakage detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N99/00—Subject matter not provided for in other groups of this subclass
    • F02N99/002—Starting combustion engines by ignition means
    • F02N99/008—Providing a combustible mixture outside the cylinder
    • 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
    • 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
    • Y02T10/40—Engine management systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The present invention relates to a method for preparing starting of an internal combustion engine (10) composed as a gas engine or an internal combustion engine (10) composed as a dual fuel engine using a gas fuel. The internal combustion engine (10) includes a cylinder (12) of at least one group (11) disposed in a row. To the cylinder, a gas fuel can be supplied through an individual cylinder group fuel supply line (13). An individual cylinder fuel supply line (14) facing the cylinder (12) of each group (11) is branched from the individual cylinder group fuel supply line.

Description

가스 엔진 또는 이중 연료 엔진으로서 구성되는 내연 기관의 시동 준비 방법 및 바람직하게는 후속 시동 방법{METHOD FOR THE START PREPARATION AND PREFERENTIALLY FOR THE SUBSEQUENT STARTING OF AN INTERNAL COMBUSTION ENGINE DESIGNED AS GAS ENGINE OR DUAL-FUEL ENGINE}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal combustion engine, and more particularly, to a method for preparing and starting up an internal combustion engine constituted as a gas engine or a dual fuel engine. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

본 발명은, 가스 엔진 또는 이중 연료 엔진으로서 구성되는 내연 기관의 시동 준비 방법 및 바람직하게는 후속 시동 방법에 관한 것이다.The present invention relates to a starting preparation method and preferably a subsequent starting method of an internal combustion engine constituted as a gas engine or a dual fuel engine.

본원에서 언급되는 당업자는 가스 엔진 또는 이중 연료 엔진으로서 구성되는 내연 기관의 기본 구성 및 기본 작동 모드에 익숙할 것이다. 이에 따르면, 가스 엔진은 보통 복수 개의 실린더를 포함하는데, 상기 실린더에서는 예컨대 메탄과 같은 가스 연료만이 연소된다. 보통, 이중 연료 엔진은 마찬가지로 복수 개의 실린더를 포함하는데, 상기 실린더에서는 제1 작동 모드에 있어서 디젤과 같은 액체 연료가 연소될 수 있으며, 제2 작동 모드에 있어서 메탄과 같은 가스 연료가 연소될 수 있다. 가스 엔진의 실린더 또는 이중 연료 엔진의 실린더는, 일렬로 위치하게 하는 복수 개의 실린더의 적어도 하나의 군에 보통 배치된다. 일렬로 위치하게 되는 실린더의 각각의 군에는 개별적인 실린더 군 연료 공급 라인을 통해 가스 연료가 공급될 수 있고, 개별적인 실린더 공급 라인은 개별적인 실린더 군 연료 공급 라인으로부터 분기되며, 이러한 개별적인 실린더 공급 라인은 일 군의 각각의 실린더를 개별적인 실린더 군 연료 공급 라인에 연결시킨다. Those skilled in the art referred to herein will be familiar with the basic configuration and basic operating modes of an internal combustion engine configured as a gas engine or a dual fuel engine. According to this, the gas engine usually includes a plurality of cylinders in which only gaseous fuel such as methane is burned. Normally, a dual fuel engine likewise includes a plurality of cylinders in which a liquid fuel such as diesel may be burned in a first mode of operation and a gaseous fuel such as methane may be burned in a second mode of operation . The cylinders of the gas engine or the cylinders of the dual fuel engine are usually arranged in at least one group of a plurality of cylinders which are positioned in a line. Each group of cylinders placed in line can be fed with gaseous fuel through individual cylinder group fuel feed lines and individual cylinder feed lines are branched from individual cylinder feed lines, To the individual cylinder group fuel supply lines.

가스 엔진의 경우에 있어서, 개별적인 실린더 군 연료 공급 라인은 정규 작동 중에 항상 가스 연료로 충전되어 있고, 즉 심지어는 가스 엔진이 꺼져 있을 때에도 가스 연료로 충전되어 있다. 그러나, 유지보수 작업을 행하기 위해서는, 개별적인 실린더 군 연료 공급 라인이 통기(vent)되어야 하며, 이에 따라 가스 엔진의 후속 시동을 위해서는, 각각의 개별적인 실린더 군 연료 공급 라인이 가스 연료로 충전되어야만 한다.In the case of a gas engine, the individual cylinder group fuel supply lines are always filled with gaseous fuel during regular operation, that is, even when the gas engine is turned off. However, in order to perform the maintenance work, the individual cylinder group fuel supply lines must be vented, and thus, for the subsequent start of the gas engine, each individual cylinder group fuel supply line must be filled with gaseous fuel.

이중 연료 엔진의 경우에 있어서, 개별적인 실린더 군 연료 공급 라인은, 특히 실린더 내의 가스 연료가 실제로 연소될 때에만 가스 연료로 충전되어 있다. 대조적으로, 예컨대 디젤과 같은 액체 연료가 이중 연료 엔진의 실린더 내에서 연소될 때, 가스 연료를 위한 각각의 개별적인 실린더 군 연료 공급 라인은 통기되며, 구체적으로 공기 또는 불활성 가스로 충전된다. 이중 연료 엔진에서 액체 연료가 연소되는 이중 연료 엔진의 작동 모드로부터 시작하여 이중 연료 엔진에서 가스 연료가 연소되는 작동 모드로 변경하기 위해서는, 각각의 개별적인 실린더 군 연료 공급 라인이 정해진 방식으로 가스 연료로 충전되어야만 한다. 이중 연료 엔진이 가스 연료로 시동되어야 하는 경우에도 동일한 상황이 존재한다.In the case of a dual fuel engine, individual cylinder group fuel supply lines are filled with gaseous fuel only, especially when the gaseous fuel in the cylinder is actually burned. In contrast, when a liquid fuel such as, for example, diesel is burned in the cylinder of the dual fuel engine, each individual cylinder group fuel supply line for the gaseous fuel is vented, specifically filled with air or an inert gas. In order to change from the operating mode of the dual fuel engine in which the liquid fuel is burned in the dual fuel engine to the operating mode in which the gaseous fuel is burned in the dual fuel engine, each individual cylinder group fuel supply line is charged . The same situation exists when a dual fuel engine is to be started with gaseous fuel.

현재까지, 연료 공급 라인의 가스 연료가 비워진 상태에서 유지 보수 작업을 수행한 이후에 가스 엔진을 적절하게 시동함에 있어서, 그리고 액체 연료 작동 모드로부터 가스 연료 작동 모드로 변경할 때 이중 연료 엔진을 적절히 시동함에 있어서 어려움이 있다. 따라서, 가스 엔진 또는 이중 연료 엔진으로서 구성되는 내연 기관을 시동 준비하는 방법에 대한 요구가 존재하며, 특히 가스 연료 라인을 위한 각각의 개별적인 실린더 군 연료 공급 라인에서 가스 연료가 비워져 있을 때, 가스 엔진 또는 이중 연료 엔진이 안정적으로 그리고 신뢰성 있게 가스 연료로 시동될 수 있도록 하는 방법에 대한 요구가 존재한다.Until now, in properly starting the gas engine after performing the maintenance work with the gaseous fuel of the fuel supply line empty, and in changing from the liquid fuel operation mode to the gas fuel operation mode, There is a difficulty. Thus, there is a need for a method of preparing an internal combustion engine configured as a gas engine or a dual fuel engine, particularly when the gas fuel is empty in each individual cylinder group fuel supply line for the gas fuel line, There is a need for a method that allows a dual fuel engine to be started reliably and reliably with gaseous fuel.

이로부터 시작하여, 본 발명은 가스 엔진 또는 이중 연료 엔진으로서 구성되는 내연 기관의 시동 준비를 위한 신규 유형의 방법을 제공하려는 목적에 기초한다.Starting from this, the present invention is based on the object of providing a new type of method for starting preparation of an internal combustion engine configured as a gas engine or a dual fuel engine.

이러한 목적은, 청구항 1에 따른 방법을 통해 해결된다.This object is solved by the method according to claim 1.

제1 단계 a)에 있어서, 가스 연료가 비워져 있는 그리고 특히 주위 공기 또는 불활성 가스로 충전되어 있는, 각각의 개별적인 실린더 군 연료 공급 라인은, 우선 정해진 방식으로 가스 연료로 충전되며, 이 과정에서, 개별적인 실린더 군 연료 공급 밸브의 폐쇄에 후속하여, 각각의 개별적인 실린더 군 연료 공급 라인에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있는지 여부를 모니터링한다. 특히 단계 a)에 있어서 각각의 개별적인 실린더 군 연료 공급 라인에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있는 것이 확인될 때, 가스 유동 방향으로 해당 군의 마지막 실린더에 할당된 또는 해당 군의 마지막 실린더의 각각의 개별적인 실린더 연료 공급 라인에 할당된 개별적인 실린더 군 연료 공급 밸브를 개방하고 이어서 폐쇄함으로써 후속 단계 b)에서 가스 연료가 각각의 개별적인 실린더 군 연료 공급 라인에 고르게 분포하게 된다. 후속 단계 c)에 있어서, 내연 기관은 가스 연료로 시동될 수 있다. 본 발명에 따른 방법을 이용하면, 각각의 개별적인 실린더 군 연료 공급 라인은 우선 단계 a)에서 누출 시험을 거치게 된다. 특히 단계 a)에 있어서 각각의 개별적인 실린더 군 연료 공급 라인이 누출 방지 상태임이 확인될 때에만, 후속 단계 b)에서 가스 연료가 개별적인 실린더 군 연료 공급 라인에 고르게 분포하게 되며, 이에 뒤이어 후속 단계 c)에서 가스 연료로 시동되는 내연 기관의 시동 준비가 완료된다.In the first step a), each individual cylinder group fuel supply line, in which the gaseous fuel is empty and particularly filled with ambient air or an inert gas, is first charged with gaseous fuel in a defined manner, Following the closure of the cylinder group fuel supply valves, it is monitored whether the pressure formed in each individual cylinder group fuel supply line is within a predetermined pressure range for a given time. Particularly when it is confirmed in step a) that the pressure formed in each individual cylinder group fuel supply line is within a predetermined pressure range for a predetermined period of time, The gas fuel is distributed evenly in each individual cylinder group fuel supply line in a subsequent step b) by opening and then closing the individual cylinder group fuel supply valves assigned to each individual cylinder fuel supply line of the cylinder. In a subsequent step c), the internal combustion engine may be started up with gaseous fuel. Using the method according to the invention, each individual cylinder group fuel supply line is first subjected to a leak test in step a). Particularly in step a), only when each individual cylinder group fuel supply line is confirmed to be leak-proof, the gas fuel is distributed evenly in the individual cylinder group fuel supply lines in the subsequent step b) The starting preparation of the internal combustion engine started from the gaseous fuel is completed.

특히 단계 a)에 있어서 개별적인 실린더 군 연료 공급 라인에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있지 않은 것이 확인되면, 시동 준비는 바람직하게는 중단된다. 단계 a)에 있어서 각각의 개별적인 실린더 군 연료 공급 라인의 누출이 형성되면, 시동 준비는 중단되며 후속하여 내연 기관은 가스 연료로 시동되지 않는다.If it is ascertained in step a) that the pressure to be formed in the individual cylinder group fuel supply lines is not within the predetermined pressure range for a predetermined time, the starting preparation is preferably stopped. If a leak of each individual cylinder group fuel supply line is formed in step a), the starting preparation is stopped and subsequently the internal combustion engine is not started with gaseous fuel.

유리한 추가적인 개량에 따르면, 각각의 개별적인 실린더 군 연료 공급 라인에서의 압력은, 연속적으로 여러 번 각각의 개별적인 실린더 연료 공급 밸브를 개방 및 폐쇄함으로써 정해진 설정 구배로 낮아지게 된다. 이 과정에서 실제 구배 형성이 이루어지며, 설정 구배와 비교되고, 특히 실제 구배가 문턱값을 초과하는 정도로 설정 구배로부터 벗어날 때, 개별적인 실린더 연료 공급 밸브는 막혀있는 것으로 결론을 내리고 시동 준비는 중단된다. 특히 실제 구배가 문턱값을 초과하는 정도로 설정 구배로부터 벗어나지 않을 때에만, 후속 단계 c)에서 내연 기관은 가스 연료로 시동된다. 각각의 뱅크(bank)에서 각각의 마지막 실린더에 할당되는 개별적인 실린더 연료 공급 밸브가 차단되어 있는지를 체크할 수 있다. 이러한 경우에 있어서, 시동 준비는 중단되며 각각의 내연 기관은 시동되지 않는다.According to an advantageous further refinement, the pressure in each individual cylinder group fuel supply line is lowered to a predetermined set gradient by continuously opening and closing each individual cylinder fuel supply valve several times in succession. In this process, actual gradient formation is made, compared to a set gradient, and when the actual gradient deviates from the set gradient to the extent that the actual gradient exceeds the threshold, it is concluded that the individual cylinder fuel supply valves are clogged and the startup preparation is discontinued. Only in the subsequent step c) the internal combustion engine is started with gaseous fuel, especially when the actual gradient does not deviate from the set gradient to the extent that the actual gradient exceeds the threshold value. It is possible to check whether or not the individual cylinder fuel supply valves allocated to the respective last cylinders in each bank are blocked. In this case, the start preparation is stopped and each internal combustion engine is not started.

본 발명의 추가적인 바람직한 실시예는 종속 청구항 및 이하의 설명에서 얻을 수 있다. 본 발명의 예시적인 실시예는 도면을 이용하여 더욱 상세하게 설명되지만, 이로써 한정되지는 않는다.Further preferred embodiments of the invention can be obtained from the dependent claims and the following description. BRIEF DESCRIPTION OF THE DRAWINGS Exemplary embodiments of the present invention are described in greater detail with reference to the drawings, but are not limited thereby.

도 1은 내연 기관의 제1 상태에서의 내연 기관의 블록선도이다.
도 2는 내연 기관의 제2 상태에서의 도 1의 블록선도이다.
도 3은 내연 기관의 제3 상태에서의 도 1의 블록선도이다.
도 4는 내연 기관의 제4 상태에서의 도 1의 블록선도이다.1 is a block diagram of an internal combustion engine in a first state of the internal combustion engine.
2 is a block diagram of Fig. 1 in a second state of the internal combustion engine;
Fig. 3 is a block diagram of Fig. 1 in a third state of the internal combustion engine.
Fig. 4 is a block diagram of Fig. 1 in a fourth state of the internal combustion engine.

본 발명은, 가스 엔진으로서 구성되는 내연 기관 또는 이중 연료 엔진으로서 구성되는 내연 기관의 시동 준비를 위한 방법에 관한 것이며, 바람직하게는 가스 연료를 이용하는 내연 기관의 후속 시동을 위한 방법에 관한 것이다.The present invention relates to a method for preparing for starting an internal combustion engine configured as a gas engine or an internal combustion engine configured as a dual fuel engine, and preferably to a method for subsequent starting of an internal combustion engine using gas fuel.

본 발명에 따른 방법은, 도 1 내지 도 4를 참고로 이하에서 설명되는데, 도 1 내지 도 4는 내연 기관(10)의 다양한 상태를 도시한 것이고, 이들 도면은 본 발명에 따른 방법이 수행되는 동안을 가정한 것일 수 있다.The method according to the invention is described below with reference to Figures 1 to 4, which show various states of the internal combustion engine 10, which illustrate how the method according to the invention is carried out It may be assumed to be for a while.

도 1 내지 도 4에 매우 개략적인 방식으로 도시된 내연 기관(10)은 일렬로 배치되는 일 군(11)의 실린더(12)를 구비하고 있다. 일 군(11)의 실린더(12)에는 개별적인 실린더 군 연료 공급 라인(13)을 통해 가스 연료가 공급될 수 있으며, 개별적인 실린더 연료 공급 라인(14)은 개별적인 실린더 군 연료 공급 라인(13)으로부터 분기되고 상기 개별적인 실린더 연료 공급 라인을 통해 가스 연료는, 개별적인 실린더 군 연료 공급 라인(13)으로부터 시작하여 개별적인 실린더(12)에 공급될 수 있다.The internal combustion engine 10 shown in a very schematic manner in Figures 1 to 4 has a cylinder 12 of a group 11 of rows arranged. The cylinders 12 of the group 11 can be fed with gaseous fuel via individual cylinder group fuel feed lines 13 and the individual cylinder fuel feed lines 14 can be fed from individual cylinder group fuel feed lines 13 And the gaseous fuel through the individual cylinder fuel supply lines can be supplied to the individual cylinders 12 starting from the individual cylinder group fuel supply line 13. [

도 1에 따르면, 개별적인 실린더 군 연료 공급 라인(13)에는 개별적인 실린더 군 연료 공급 밸브(15)가 할당된다. 특히 개별적인 실린더 군 연료 공급 밸브(15)가 개방되어 있을 때, 개별적인 실린더 군 연료 공급 라인(13)은 가스 연료로 충전될 수 있다. 각각의 개별적인 실린더 연료 공급 라인(14)에는 개별적인 실린더 연료 공급 밸브(16)가 할당되며, 대안으로, 이러한 개별적인 실린더 연료 공급 밸브(16)는 실린더(12)에 할당될 수 있다. 개별적인 실린더 연료 공급 밸브(16)가 개방되어 있는지 또는 폐쇄되어 있는지에 따라, 특히 개별적인 실린더 군 연료 공급 라인(13)이 가스 연료로 충전되어 있을 때, 각각의 실린더(12)에는 개별적인 실린더 군 연료 공급 라인(13)으로부터 시작되는 가스 연료가 공급될 수 있다.According to Fig. 1, individual cylinder group fuel supply lines 13 are assigned to individual cylinder group fuel supply valves 15. Fig. Particularly when the individual cylinder group fuel supply valve 15 is opened, the individual cylinder group fuel supply line 13 can be filled with the gaseous fuel. Each individual cylinder fuel supply line 14 is assigned an individual cylinder fuel supply valve 16 and, alternatively, this individual cylinder fuel supply valve 16 may be assigned to the cylinder 12. Each of the cylinders 12 is provided with an individual cylinder group fuel supply line 13 and an individual cylinder group fuel supply line 16 depending on whether the individual cylinder fuel supply valves 16 are open or closed, Gas fuel starting from the line 13 can be supplied.

도 1은 내연 기관(10)의 일 상태를 도시한 것이며, 여기서는 개별적인 실린더 군 연료 공급 라인(13)에 가스 연료가 전혀 존재하지 않지만, 도 1에서의 개별적인 실린더 군 연료 공급 라인(13)은 예를 들어 통기 밸브(vent valve; 17)를 통해 가스 연료가 비워져 있으며, 공기, 예컨대 O2를 함유하는 주위 공기 및/또는 불활성 가스로 충전되어 있다.1 shows one state of the internal combustion engine 10 in which no individual gas fuel is present in the individual cylinder group fuel supply lines 13 but the individual cylinder group fuel supply lines 13 in FIG. The gas fuel is emptied through a vent valve 17 and is filled with air, such as ambient air containing O 2 and / or inert gas.

본 발명은 이제 전술한 내연 기관의 시동 준비를 위한 방법, 그리고 적절하다면, 이러한 내연 기관의 후속 시동을 위한 방법의 세부 사항에 관한 것이며, 여기서 내연 기관은 가스 연료를 이용하여 안전하게 그리고 신뢰성 있게 시동될 수 있다. The present invention now also relates to a method for preparing the internal combustion engine for starting as described above and, if appropriate, details of a method for subsequent starting of such an internal combustion engine, wherein the internal combustion engine is started safely and reliably .

본 발명에 따른 시동 준비 방법의 제1 단계 a)에 있어서, 가스 연료가 비워져 있고 공기 및/또는 불활성 가스로 충전되어 있는 개별적인 실린더 군 연료 공급 라인(13)은, 개별적인 실린더 군 연료 공급 밸브(15)를 개방함으로써, 우선 정해진 방식으로 가스 연료로 충전되며, 이 과정에 있어서 개별적인 실리더 군 연료 공급 밸브(15)는 정해진 시간 간격 동안 개방되며 후속하여 다시 폐쇄되게 된다. 개별적인 실린더 연료 공급 밸브(16)는 이 과정 동안 폐쇄되고 폐쇄 상태로 유지된다. 도 2는 가스 연료로서 메탄을 이용하는 개별적인 실린더 군 연료 공급 라인(13)의 충전을 나타낸 것이다.In the first step a) of the starting preparation method according to the present invention, the individual cylinder group fuel supply lines 13, in which the gaseous fuel is empty and filled with air and / or inert gas, , The fuel is first charged into the gaseous fuel in a predetermined manner, and in this process, the individual cylinder group fuel supply valve 15 is opened for a predetermined time interval and subsequently closed again. The individual cylinder fuel supply valves 16 are closed during this process and remain closed. Fig. 2 shows the charging of individual cylinder group fuel supply lines 13 using methane as gaseous fuel.

개별적인 실린더 군 연료 공급 밸브(15)의 폐쇄에 이어서, 도 3에 도시된 바와 같이 압력 센서(18)에 의해, 개별적인 실린더 군 연료 공급 밸브(15)의 폐쇄 이후에 개별적인 실린더 군 연료 공급 라인(13)에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있는지를 체크한다. 개별적인 실린더 군 연료 공급 밸브(15) 및 개별적인 실린더 연료 공급 밸브(16)는 이 과정 동안 폐쇄되며 폐쇄 상태로 유지된다.Following the closing of the individual cylinder group fuel supply valve 15, the individual cylinder group fuel supply lines 13 (Fig. 3) are closed by the pressure sensor 18, ) Is within a predetermined pressure range for a predetermined period of time. The individual cylinder fuel supply valve 15 and the individual cylinder fuel supply valve 16 are closed during this process and remain closed.

특히 단계 a)에 있어서 개별적인 실린더 군 연료 공급 라인(13)에서 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있다는 것이 확인되면, 이어지는 제2 단계 b)에서 개별적인 실린더 연료 공급 밸브(16)(도 4 참고)를 개방하고 후속하여 폐쇄함으로써 가스 연료가 각각의 개별적인 실린더 군 연료 공급 라인(13)에 고르게 분포하게 되는데, 개별적인 실린더 연료 공급 밸브는 개별적인 실린더 군 연료 공급 밸브(15)로부터 볼 때 실린더 군(11)의 마지막 실린더에 할당되거나, 또는 해당 군(11)의 마지막 실린더(12)의 각각의 개별적인 실린더 연료 공급 라인(14)에 할당되고, 이 과정에 있어서 개별적인 실린더 군 연료 공급 라인(13)은 단계 a)에서 개별적인 실린더 군 연료 공급 라인 내로 이미 도입되어 있는 가스 연료로 완전히 충전되며, 전술한 과정에 있어서, 잔류량의 공기는 개별적인 실린더 군 연료 공급 라인(13)으로부터 제거된다. 개별적인 실린더 군 연료 공급 밸브(15) 및 끝에서 2번째에 있는 제1의 2개의 공압 실린더(12)에 할당되는 다른 개별적인 실린더 연료 공급 밸브(16)는 이 과정 동안 폐쇄되며 폐쇄 상태로 유지된다.Particularly if it is ascertained in step a) that the pressures formed in the respective cylinder group fuel supply lines 13 are within a predetermined pressure range for a predetermined time, then in the subsequent second step b) the individual cylinder fuel supply valves 16 The gas fuel is evenly distributed in the respective individual cylinder group fuel supply lines 13, and the individual cylinder fuel supply valves are arranged in the cylinder group (not shown) as viewed from the individual cylinder group fuel supply valves 15 11 or assigned to the respective individual cylinder fuel supply lines 14 of the last cylinder 12 of the respective group 11 and in this process the individual cylinder group fuel supply lines 13, Is fully charged with the gaseous fuel that has already been introduced into the individual cylinder group fuel supply line in step a) On, the remaining amount of the air is removed from the respective cylinder groups a fuel supply line (13). The individual cylinder fuel supply valves 15 and the other individual cylinder fuel supply valves 16 assigned to the first two pneumatic cylinders 12 at the second end are closed during this process and remain closed.

따라서, 실제 시동 준비가 완료되며, 후속 단계 c)에 있어서 내연 기관(10)은 이제 가스 연료로 안전하게 그리고 신뢰성 있게 시동될 수 있다.Thus, the actual starting preparation is completed, and in the subsequent step c) the internal combustion engine 10 can now be safely and reliably started with gaseous fuel.

특히 제1 단계 a)에 있어서 개별적인 실린더 군 연료 공급 밸브(15)의 개방 및 폐쇄를 통한, 개별적인 실린더 군 연료 공급 라인(13)의 정해진 충전에 이어서, 개별적인 실린더 군 연료 공급 라인(13)에서 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있지 않다면, 가스 연료에 대한 연료 공급 시스템에 누출이 있다고 결론을 내리며, 시동 준비는 중단되고, 내연 기관은 후속하여 가스 연료로 시동되지 않는다.In particular, in the first stage a), the individual cylinder group fuel supply lines 13 are formed in the respective cylinder group fuel supply lines 13, following the predetermined filling of the individual cylinder group fuel supply lines 13, through the opening and closing of the individual cylinder group fuel supply valves 15 If the pressure being applied is not within the predetermined pressure range for a predetermined time, it is concluded that there is a leak in the fuel supply system for the gaseous fuel, the start preparation is stopped, and the internal combustion engine is not subsequently started up with gaseous fuel.

가스 연료가 개별적인 실린더 군 연료 공급 라인(13)에 고르게 분포하게 되는 제2 단계 b)에 있어서, 개별적인 실린더 군 연료 공급 라인(13)에서의 압력은, 바람직하게는, 각각의 뱅크(bank; 11)에서의 마지막 실린더(12)의 각각의 개별적인 실린더 연료 공급 밸브(16)를 개방함으로써 대기압으로 낮아지게 된다. In the second step b) in which the gaseous fuels are evenly distributed to the individual cylinder group fuel supply lines 13, the pressure in the individual cylinder group fuel supply lines 13 is preferably such that the respective banks 11 ) To the atmospheric pressure by opening each individual cylinder fuel supply valve 16 of the last cylinder 12 in the combustion chamber.

이러한 제2 단계 b)에 있어서, 개별적인 실린더 군 연료 공급 라인(13)에서의 압력은, 바람직하게는 상기 뱅크에서의 마지막 실린더(12)의 개별적인 실린더 연료 공급 밸브(16)의 연속적인 여러 번의 클록 작동식(clocked) 개방 및 폐쇄에 의해 정해진 설정 구배로 낮아지게 된다.In this second stage b), the pressure in the individual cylinder group fuel supply line 13 is preferably maintained at a predetermined number of consecutive clocks of the individual cylinder fuel supply valves 16 of the last cylinder 12 in the bank It is lowered to a set gradient determined by the clocked opening and closing.

이 과정에서 실제 구배 형성이 이루어지며, 설정 구배와 비교되고, 특히 실제 구배가 문턱값을 초과하는 정도로 설정 구배로부터 벗어날 때, 뱅크(11)에서의 각각의 마지막 실린더(12)의 개별적인 실린더 연료 공급 밸브(16)는 막혀있는 것으로 결론을 내리고 시동 준비는 이제 마찬가지로 중단된다. 특히 단계 b)에서 구체화되는 실제 구배가 문턱값을 초과하는 정도로 각각의 설정 구배로부터 벗어나지 않을 때에만, 내연 기관은 후속 제3 단계 c)에서 가스 연료로 실제로 시동된다.In this process, actual gradient formation takes place and is compared with a set gradient, and particularly when the actual gradient deviates from the set gradient to the extent that the actual gradient exceeds the threshold, the individual cylinder fuel supply of each last cylinder 12 in the bank 11 Valve 16 is closed and startup preparation is now stopped as well. Only when the actual gradient specified in step b) does not deviate from the respective setting gradient to the extent that it exceeds the threshold value, the internal combustion engine is actually started as gaseous fuel in the subsequent third step c).

이에 따라, 일 군(11)의 실린더(12)로 향하는 개별적인 실린더 군 연료 공급 라인(13)의 누출이 없는지 또는 그렇지 않은지를 체크하기 위해, 본 발명에 따르면 단계 a)에서 정해진 누출 시험이 행해진다. 이를 위해, 각각의 개별적인 실린더 군 연료 공급 라인(13)은 정해진 방식으로 가스 연료로 충전되며, 각각의 개별적인 실린더 군 연료 공급 라인에서의 압력이 일정하게 유지되는지 또는 임계적으로 기준을 하회하는지가 체크된다. 임계적 압력 강하가 있는 경우에 있어서, 가스 연료를 위한 공급 시스템에 누출이 있다고 결론을 내리게 되며, 시동 준비는 중단되고 연료로서 가스를 이용하는 엔진 시동은 방지된다. Accordingly, in order to check whether or not there is leakage of the individual cylinder group fuel supply line 13 toward the cylinder 12 of the group 11, the leak test specified in step a) is performed according to the present invention . To this end, each individual cylinder group fuel supply line 13 is filled with gaseous fuel in a defined manner, and it is checked whether the pressure in each individual cylinder group fuel supply line remains constant or falls critically below the criterion do. In the presence of a critical pressure drop, it is concluded that there is a leak in the feed system for the gaseous fuel, the start-up preparation is stopped and engine starting using gas as fuel is prevented.

그러나, 대조적으로, 누출 시험이 성공적일 때, 즉 가스 연료에 대한 연료 공급 시스템에 누출 문제가 없다는 것이 탐지될 때, 시동 준비는 계속되며, 단계 b)에서 가스 연료는, 해당 군(11)의 마지막 실린더(12)의 연료 공급 밸브(16)를 개방함으로써 개별적인 실린더 군 연료 공급 라인(13)에 고르게 분포하게 된다. 이에 이어서, 내연 기관(10)은 이제 정해진 방식으로 단계 c)에서 시동될 수 있다.However, by contrast, when the leak test is successful, i.e. when it is detected that there is no leakage problem in the fuel supply system for the gaseous fuel, the starting preparation continues and in step b) And evenly distributed in the individual cylinder group fuel supply lines 13 by opening the fuel supply valve 16 of the last cylinder 12. [ Subsequently, the internal combustion engine 10 can now be started in step c) in a defined manner.

단계 b) 동안, 마지막 실린더(12)에 할당된 개별적인 실린더 연료 공급 밸브(16)에서 누출이 있다는 것을 알게 되면, 시동 준비는 마찬가지로 중단되며, 내연 기관(10)의 후속 시동도 방지된다. 이전에 단지 제한된 양의 가스 연료만이 개별적인 실린더 군 연료 공급 라인(13)에 도입되어 있기 때문에, 가스 연료가 이웃한 부분 시스템, 예컨대 과급 공기 시스템과 같은 이웃한 부분 시스템 내로 오버플로우(overflow)할 위험은 없다.If during step b) it is found that there is a leak in the individual cylinder fuel feed valves 16 assigned to the last cylinder 12, the starting preparation is stopped as well and subsequent startup of the internal combustion engine 10 is also prevented. Because only a limited amount of gaseous fuel has previously been introduced into the individual cylinder group fuel supply line 13, it is possible for the gaseous fuel to overflow into a neighboring partial system, for example a neighboring partial system such as a supercharged air system There is no danger.

복수 개의 군(11)의 실린더(12)를 갖춘 내연 기관(10)의 경우에는, 단지 전술한 단계 a) 및 단계 b)에서 해당 군(11)의 실린더(12) 각각에 대해 전술한 바와 같은 반대이유가 없이 통과하고 이에 따라 어떠한 누출도 탐지되지 않을 때에만, 상기 내연 기관의 시동이 이루어진다.In the case of the internal combustion engine 10 having the cylinders 12 of the plurality of groups 11, it is preferable to arrange the cylinders 12 of the corresponding group 11 in steps a) and b) The internal combustion engine is started only when it passes without any reason and thus no leaks are detected.

10 : 내연 기관
11 : 군
12 : 실린더
13 : 개별적인 실린더 군 연료 공급 라인
14 : 개별적인 실린더 연료 공급 라인
15 : 개별적인 실린더 군 연료 공급 밸브
16 : 개별적인 실린더 연료 공급 밸브
17 : 통기 밸브
18 : 압력 센서10: Internal combustion engine
11: County
12: Cylinder
13: Individual cylinder group fuel supply line
14: Individual cylinder fuel supply line
15: Individual cylinder group fuel supply valve
16: Individual cylinder fuel supply valve
17: vent valve
18: Pressure sensor

Claims (7)

가스 엔진으로서 구성되는 내연 기관(10) 또는 가스 연료를 이용하는 이중 연료 엔진으로서 구성되는 내연 기관(10)의 시동 준비 및 바람직하게는 후속 시동을 위한 방법으로서,
내연 기관(10)은 일렬로 배치되는 적어도 하나의 군(11)의 실린더(12)를 포함하며, 상기 실린더에는 개별적인 실린더 군 연료 공급 라인(13)을 통해 가스 연료가 공급될 수 있고, 개별적인 실린더 군 연료 공급 라인으로부터 각각의 군(11)의 실린더(12)로 향하는 개별적인 실린더 연료 공급 라인(14)이 분기되며, 적어도 이하의 단계, 즉 단계 a) 및 단계 b)를 포함하고,
단계 a)에 있어서, 가스 연료가 비워져 있는 그리고 특히 공기로 충전되어 있는, 각각의 개별적인 실린더 군 연료 공급 라인(13)은, 개별적인 실린더 군 연료 공급 밸브(15)를 개방함으로써 우선 정해진 방식으로 가스 연료로 충전되며, 이 과정에서, 개별적인 실린더 군 연료 공급 밸브(15)의 폐쇄 이후에, 개별적인 실린더 군 연료 공급 라인(13)에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있는지 여부가 모니터링되고,
특히 단계 a)에 있어서 개별적인 실린더 군 연료 공급 라인(13)에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있는 것이 확인될 때, 가스 유동 방향으로 해당 군(11)의 마지막 실린더(12)에 할당된 또는 해당 군(11)의 마지막 실린더(12)의 각각의 개별적인 실린더 연료 공급 라인(14)에 할당된 개별적인 실린더 연료 공급 밸브(16)를 개방하고 이어서 폐쇄함으로써 후속 단계 b)에서 가스 연료가 각각의 개별적인 실린더 군 연료 공급 라인(13)에 고르게 분포하게 되는 것을 특징으로 하는 방법.1. A method for starting preparation and preferably for subsequent start-up of an internal combustion engine (10) configured as a gas engine or an internal combustion engine (10) configured as a dual fuel engine using gaseous fuel,
The internal combustion engine 10 includes a cylinder 12 of at least one group 11 arranged in a row in which the gas fuel can be supplied via the individual cylinder group fuel feed line 13, The individual cylinder fuel supply lines 14 branching from the grouped fuel supply lines to the cylinders 12 of each group 11 are branched and comprise at least the following steps: step a) and step b)
In step a), each individual cylinder group fuel supply line 13, in which the gaseous fuel is empty and in particular filled with air, is opened by opening the individual cylinder group fuel supply valve 15, And in this process, after the closing of the individual cylinder group fuel supply valve 15, it is monitored whether the pressure formed in the individual cylinder group fuel supply line 13 is within a predetermined pressure range for a predetermined time,
Particularly when the pressure to be formed in the individual cylinder group fuel supply line 13 in step a) is confirmed to be within a predetermined pressure range for a predetermined period of time, it is assigned to the last cylinder 12 of the group 11 in the gas flow direction By opening and then closing the individual cylinder fuel supply valves 16 assigned to each individual cylinder fuel supply line 14 of the last cylinder 12 of the respective group 11 To the individual cylinder group fuel supply lines (13) of the cylinder group (1). 제1항에 있어서, 후속 단계 c)에서, 내연 기관이 가스 연료를 이용하여 시동되는 것을 특징으로 하는 방법.The method according to claim 1, characterized in that, in a subsequent step c), the internal combustion engine is started using gaseous fuel. 제1항 또는 제2항에 있어서, 특히 단계 a)에 있어서 개별적인 실린더 군 연료 공급 라인(13)에 형성되는 압력이 정해진 시간 동안 정해진 압력 범위 내에 있지 않은 것이 확인되면, 가스를 이용한 시동을 위한 시동 준비는 중단되는 것을 특징으로 하는 방법.3. A method according to claim 1 or 2, characterized in that, when it is ascertained in step a) that the pressure formed in the individual cylinder group fuel supply line (13) is not within a predetermined pressure range for a predetermined time, Wherein the preparation is interrupted. 제1항 내지 제3항 중 어느 하나의 항에 있어서, 단계 b)에서 개별적인 실린더 군 연료 공급 라인(13)에서의 압력은 대기압으로 낮아지게 되는 것을 특징으로 하는 방법.4. The method according to any one of claims 1 to 3, wherein the pressure in the individual cylinder group fuel supply line (13) in step b) is lowered to atmospheric pressure. 제1항 내지 제4항 중 어느 하나의 항에 있어서, 개별적인 실린더 군 연료 공급 라인(13)에서의 압력이, 단계 b)에서, 연속적으로 여러 번 개별적인 실린더 연료 공급 밸브(16)의 개방 및 폐쇄에 의해 정해진 설정 구배에 따라 낮아지게 되는 것을 특징으로 하는 방법.The method according to any one of claims 1 to 4, characterized in that the pressure in the individual cylinder group fuel supply line (13) is increased in step b) by opening and closing the individual cylinder fuel supply valves In accordance with a set gradient determined by a predetermined gradient. 제5항에 있어서, 이상의 과정에서 실제 구배 형성이 이루어지며, 설정 구배와 비교되고, 특히 실제 구배가 문턱값을 초과하는 정도로 설정 구배로부터 벗어날 때, 개별적인 실린더 연료 공급 밸브(16)는 막혀있는 것으로 결론을 내리고, 가스를 이용한 시동을 위한 시동 준비는 중단되는 것을 특징으로 하는 방법.6. The method as claimed in claim 5, wherein the actual gradient formation takes place and is compared with a set gradient, and particularly when the actual gradient deviates from the set gradient to an extent exceeding the threshold, the individual cylinder fuel supply valve (16) The conclusion is drawn, and the start-up preparation for starting with gas is stopped. 제5항 또는 제6항에 있어서, 특히 실제 구배가 문턱값을 초과하는 정도로 설정 구배로부터 벗어나지 않을 때에만, 내연 기관은 후속 단계 c)에서 가스 연료를 이용하여 시동되는 것을 특징으로 하는 방법.The method according to claim 5 or 6, characterized in that the internal combustion engine is started using the gaseous fuel in the subsequent step c) only when the actual gradient does not deviate from the setting gradient to the extent that the actual gradient exceeds the threshold value.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1019626S1 (en) 2020-12-30 2024-03-26 Samsung Electronics Co., Ltd. Case for mobile telephone

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020210402B4 (en) 2020-08-14 2022-05-19 Mtu Friedrichshafen Gmbh Internal combustion engine and method for operating an internal combustion engine
CN112879169B (en) * 2021-03-09 2023-09-05 广西玉柴船电动力有限公司 Method and system for controlling air intake and exhaust treatment of internal combustion engine
DE102022107551A1 (en) * 2022-03-30 2023-10-05 CMB.Tech Technology & Development Centre Ltd Control device for a dual-fuel internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006118519A (en) * 2006-01-26 2006-05-11 Denso Corp Fuel leakage detector for gas engine
KR20090013362A (en) * 2007-08-01 2009-02-05 콘티넨탈 오토모티브 시스템 주식회사 Method for diagnosing fuel leakage of bi fuel car
KR20130075563A (en) * 2011-12-27 2013-07-05 콘티넨탈 오토모티브 시스템 주식회사 Method for sensoring leak of gas fuel rail
US20130238226A1 (en) * 2012-03-07 2013-09-12 Ford Global Technologies, Llc Method and system for estimating fuel system integrity
JP2014118844A (en) * 2012-12-13 2014-06-30 Denso Corp Fuel injection control device of internal combustion engine
KR20150013707A (en) * 2012-05-11 2015-02-05 바르실라 핀랜드 오이 Method for operating a dual fuel engine
JP2016153626A (en) * 2015-02-20 2016-08-25 株式会社デンソー Fuel injection control device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000337208A (en) * 1999-05-25 2000-12-05 Toyota Motor Corp Fuel leak detecting device
JP3949348B2 (en) * 2000-04-20 2007-07-25 本田技研工業株式会社 Gas fuel supply device
FR2840025B1 (en) * 2002-05-27 2004-12-24 Johnson Contr Automotive Elect METHOD FOR DETECTING LEAKAGE IN A GAS FUEL SUPPLY CIRCUIT OF AN ENGINE
JP5063491B2 (en) * 2008-06-04 2012-10-31 本田技研工業株式会社 Gas engine fuel supply device
ES2536106T3 (en) * 2009-10-16 2015-05-20 Caterpillar Motoren Gmbh & Co. Kg Fuel gas intake system for a gas powered engine
CN103261636A (en) * 2010-12-24 2013-08-21 川崎重工业株式会社 Gas fuel leakage detection method, and gas fuel leakage detection device, and gas engine equipped with same
US9784194B2 (en) * 2014-06-30 2017-10-10 General Electric Company Systems for a multi-fuel capable engine
US9359963B2 (en) * 2012-09-20 2016-06-07 Ford Global Technologies, Llc Gaseous fuel rail depressurization during inactive injector conditions
RU2638899C2 (en) * 2013-03-15 2017-12-18 ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи Tank emptying method (versions)
JP6045424B2 (en) * 2013-03-29 2016-12-14 三菱重工業株式会社 Gas internal combustion engine starter
DK177713B1 (en) * 2013-05-16 2014-03-31 Man Diesel & Turbo Deutschland Combustion engine, and a method for supplying such a gas-fueled engine
JP6018015B2 (en) * 2013-05-16 2016-11-02 愛三工業株式会社 Vehicle control apparatus and vehicle control method
EP2915986B1 (en) * 2014-03-07 2019-05-08 Caterpillar Motoren GmbH & Co. KG Evaluating air-tightness of a gaseous fuel manifold during purge gas flushing
EP2915987B1 (en) * 2014-03-07 2016-12-21 Caterpillar Motoren GmbH & Co. KG Evaluating gaseous fuel admission valve operability
EP2915985B1 (en) * 2014-03-07 2024-05-08 Caterpillar Motoren GmbH & Co. KG Electrical monitoring of gaseous fuel admission valves
DE102014004013B3 (en) * 2014-03-20 2015-07-02 Mtu Friedrichshafen Gmbh Gas engine assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006118519A (en) * 2006-01-26 2006-05-11 Denso Corp Fuel leakage detector for gas engine
KR20090013362A (en) * 2007-08-01 2009-02-05 콘티넨탈 오토모티브 시스템 주식회사 Method for diagnosing fuel leakage of bi fuel car
KR20130075563A (en) * 2011-12-27 2013-07-05 콘티넨탈 오토모티브 시스템 주식회사 Method for sensoring leak of gas fuel rail
US20130238226A1 (en) * 2012-03-07 2013-09-12 Ford Global Technologies, Llc Method and system for estimating fuel system integrity
KR20150013707A (en) * 2012-05-11 2015-02-05 바르실라 핀랜드 오이 Method for operating a dual fuel engine
JP2014118844A (en) * 2012-12-13 2014-06-30 Denso Corp Fuel injection control device of internal combustion engine
JP2016153626A (en) * 2015-02-20 2016-08-25 株式会社デンソー Fuel injection control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1019626S1 (en) 2020-12-30 2024-03-26 Samsung Electronics Co., Ltd. Case for mobile telephone

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