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JP2019049261A - Multi-engine plant - Google Patents

Multi-engine plant Download PDF

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Publication number
JP2019049261A
JP2019049261A JP2018167706A JP2018167706A JP2019049261A JP 2019049261 A JP2019049261 A JP 2019049261A JP 2018167706 A JP2018167706 A JP 2018167706A JP 2018167706 A JP2018167706 A JP 2018167706A JP 2019049261 A JP2019049261 A JP 2019049261A
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engine
fuel
valve
gas pressure
engines
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JP2018167706A
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JP7311252B2 (en
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ミヒャエル・ベヒシュタイン
Bechstein Michael
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Everllence SE
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MAN Energy Solutions SE
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    • 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
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
    • F02B69/04—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel for gaseous and non-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
    • 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
    • F02M21/0293—Safety devices; Fail-safe measures
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • 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
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
    • 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
    • F02B73/00—Combinations of two or more engines, not otherwise provided for
    • 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
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • 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
    • F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • 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
    • 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
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0673—Valves; Pressure or flow regulators; Mixers
    • F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D25/00—Controlling two or more co-operating 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
    • F02D41/0025—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
    • 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
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B21/00—Combinations of two or more machines or engines
    • F01B21/02—Combinations of two or more machines or engines the machines or engines being all of reciprocating-piston type
    • 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
    • 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

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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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Supercharger (AREA)

Abstract

【課題】新たな種類の多機関プラントを提供すること。【解決手段】ガスエンジンまたは二元燃料エンジンとして設計される少なくとも2つのエンジン(22、23、24)と、エンジン(22、23、24)にガス燃料と給気との混合物が供給可能となるのに介在される燃料供給システム(25)と、を備え、燃料供給システムは、ガス燃料のための燃料配管(26、27、28)と、ガス燃料の燃料配管に割り当てられるガス圧力調節弁(29)、閉止弁(31)、および通気弁(30)と、を備え、燃料供給システム(25)のすべての閉止弁(31)およびすべての通気弁(30)は共通の筐体(34)に位置決めされる、多機関プラント。【選択図】図1To provide a new kind of multi-engine plant. A mixture of gaseous fuel and charge air can be supplied to at least two engines (22, 23, 24) designed as gas engines or binary fuel engines and to the engines (22, 23, 24). The fuel supply system includes a fuel supply system (25), a fuel supply system (26, 27, 28) for the gas fuel, and a gas pressure control valve ( 29), shut-off valve (31), and vent valve (30), all shut-off valves (31) and all vent valves (30) of the fuel supply system (25) are in a common housing (34) A multi-engine plant located at. [Selected figure] Figure 1

Description

本発明は多機関プラントに関する。   The present invention relates to multi-engine plants.

図1は、例えば船舶または海上用途において採用されるなど、先行技術から知られている多機関プラント1の詳細を示している。したがって、図1に示された多機関プラント1は、ガスエンジンとして、または二元燃料エンジンとして具体化できる複数のエンジン2、3、および4を備えている。さらに、図1は多機関プラント1の燃料供給システム5を示しており、燃料供給システム5を介して、エンジン2、3、および4にはガス燃料と給気との混合物が供給可能である。   FIG. 1 shows the details of a multi-engine plant 1 known from the prior art, for example as employed in marine or marine applications. Thus, the multi-engine plant 1 shown in FIG. 1 comprises a plurality of engines 2, 3 and 4 which can be embodied as gas engines or as dual fuel engines. Furthermore, FIG. 1 shows a fuel supply system 5 of a multi-engine plant 1, via which a mixture of gaseous fuel and charge air can be supplied to the engines 2, 3 and 4.

先行技術から知られている多機関プラント1の燃料供給システム5は、燃料配管6、7、8と、ガス燃料のために燃料配管6、7、8に割り当てられたガス圧力調節弁9と、通気弁10と、閉止弁11と、を備えている。燃料供給システム5の燃料配管6、7、および8によって、ガス燃料が、ガス圧力調節弁9、通気弁10、および閉止弁11の切替位置に依存して、多機関プラント1のエンジン2、3、および4の方向で送られ、多機関プラント1のエンジン2、3、4の各々には混合物形成ユニット12が割り当てられており、この方法ではエンジン2から4のシリンダ13への燃焼のためのガスおよび給気の混合物を供給するために、混合物形成ユニット12を介して、ガス燃料は、多機関プラント1のそれぞれのエンジン2、3、および4のシリンダ13の上流で給気と混合され得る。簡潔性のために、単一のシリンダ13が図1における多機関プラント1の各々のエンジン2、3、および4について示されている。   The fuel supply system 5 of the multi-engine plant 1 known from the prior art comprises fuel pipes 6, 7, 8 and a gas pressure control valve 9 assigned to the fuel pipes 6, 7, 8 for gas fuel. A vent valve 10 and a shutoff valve 11 are provided. Depending on the switching positions of the gas pressure control valve 9, the vent valve 10 and the shutoff valve 11, the fuel lines 6, 7 and 8 of the fuel supply system 5 cause the gas fuel to depend on the engines 2, 3 , And 4 and each of the engines 2, 3, 4 of the multi-engine plant 1 is assigned a mixture formation unit 12, in this way for combustion of the engines 2 to 4 into the cylinders 13 Gaseous fuel may be mixed with the charge air upstream of the cylinders 13 of the respective engines 2, 3 and 4 of the multi-engine plant 1 via the mixture formation unit 12 in order to supply a mixture of gas and charge air. . For simplicity, a single cylinder 13 is shown for each engine 2, 3, and 4 of the multi-engine plant 1 in FIG.

従来技術から知られている図1による多機関プラント1では、燃料供給システム5は、各々のエンジン2、3、および4のために個別の筐体14において受け入れられる、各々のエンジン2、3、および4のための個別のガス圧力調節弁9と、個別の通気弁10と、個別の閉止弁11と、を備えている。燃料配管6、7、および8は二重壁とされた管であり、内側管6a、7a、および8aは、それぞれのエンジン2、3、および4のそれぞれの混合物形成ユニット12の方向においてそれぞれのガス燃料を案内し、外側管6b、7b、および8bは、それぞれの内側管6a、7a、8aを包囲し、それぞれの筐体14の方向において任意の可及的なガス漏れを排出する。   In a multi-engine plant 1 according to FIG. 1 known from the prior art, a fuel supply system 5 is provided for each engine 2, 3, 4 received in a separate housing 14 for each engine 2, 3, 4 And 4 and an individual vent valve 10 and an individual shut off valve 11. Fuel pipes 6, 7, and 8 are double-walled pipes, and inner pipes 6a, 7a, and 8a are arranged in the direction of the respective mixture forming units 12 of the respective engines 2, 3 and 4 respectively. The gas fuel is guided, the outer tubes 6b, 7b and 8b surround the respective inner tubes 6a, 7a and 8a and discharge any possible gas leaks in the direction of the respective housing 14.

先行技術から知られている多機関プラントは、比較的複雑な構造を有する。多機関プラントの構造を単純化したいという要求がある。具体的には、多機関プラントの燃料供給システムの組立体によって必要とされる設置空間を、燃料供給システムの構造の簡素化によって縮小したいという要求がある。   The multi-engine plants known from the prior art have a relatively complex structure. There is a need to simplify the structure of multi-engine plants. Specifically, there is a need to reduce the installation space required by the assembly of a multi-engine plant fuel supply system by simplifying the structure of the fuel supply system.

ここから始まって、本発明は、新たな種類の多機関プラントを作り出すという目的に基づかれている。この目的は、請求項1による多機関プラントを通じて解決される。本発明によれば、燃料供給システムのすべての閉止弁およびすべての通気弁は共通の筐体に位置決めされる。   Starting from here, the invention is based on the object of creating a new kind of multi-engineered plant. This object is solved through a multi-engine plant according to claim 1. According to the invention, all shut off valves and all vent valves of the fuel supply system are positioned in a common housing.

多機関プラントの燃料供給システムのすべての閉止弁およびすべての通気弁が共通の筐体に位置決めされるという事実のため、多機関プラントの構造は単純化される一方で、多機関プラントの燃料供給システムの構成要素の設置空間要件が、具体的には縮小される。   Due to the fact that all shut off valves and all vent valves of the multi-engine plant fuel supply system are positioned in a common housing, the construction of the multi-engine plant is simplified while the multi-engine plant fuel supply The installation space requirements of the components of the system are specifically reduced.

本発明のさらなる展開によれば、共通の筐体において位置決めされる共通の閉止弁および共通の通気弁が、すべてのエンジンについて存在する。代替で、共通の筐体において位置決めされる個別の閉止弁および個別の通気弁が、すべてのエンジンについて存在する。具体的には、多機関プラントのすべてのエンジンについて、共通の筐体に位置決めされる共通の閉止弁および共通の通気弁が存在するとき、多機関プラントの構造は特に大幅に単純化でき、具体的には燃料供給システムの構成要素の設置空間要件が、特に大幅に縮小される。   According to a further development of the invention, a common closing valve and a common venting valve located in a common housing are present for all engines. Alternatively, separate shut off valves and separate vent valves located in a common housing are present for all engines. In particular, the structure of a multi-engine plant can be particularly greatly simplified, especially when there is a common closing valve and a common vent valve positioned in a common housing for all engines of the multi-engine plant. In particular, the installation space requirements of the components of the fuel supply system are in particular significantly reduced.

本発明のさらなる展開によれば、多機関プラントの燃料供給システムは、優先的には別々の筐体における閉止弁および通気弁の下流に位置決めされる、各々のエンジンについての個別のガス圧力調節弁を備える。これによって、多機関プラントの構造はさらに単純化でき、具体的には燃料供給システムの設置空間要件はさらに縮小される。   According to a further development of the invention, the fuel supply system of the multi-engine plant is preferably a separate gas pressure control valve for each engine, positioned downstream of the shut off valve and vent valve in separate housings. Equipped with This further simplifies the structure of the multi-engine plant and in particular reduces the installation space requirements of the fuel supply system.

それぞれのエンジンにつながるそれぞれの燃料配管について、それぞれのエンジンのエンジンドックヤード連結部までのそれぞれのガス圧力調節弁の距離が、ガス圧力調節弁の公称幅の5倍から100倍までの間、好ましくは5倍から75倍までの間、特に好ましくは5倍から50倍までの間、最も好ましくは5倍から20倍までの間になる。それぞれのエンジンのそれぞれのエンジンドックヤード連結部からのそれぞれのガス圧力調節弁のこのような距離は、一方で、ガス圧力調節弁の下流におけるそれぞれの燃料配管の適切な大きさの調節距離を提供し、他方で、ガス圧力調節弁の下流におけるそれぞれの燃料配管の緩衝区域を短縮することでガス圧力調節の動力学を最小限にするためには、好ましいとされる。   Preferably, for each fuel line leading to each engine, the distance of each gas pressure control valve to the engine dock yard connection of each engine is between 5 and 100 times the nominal width of the gas pressure control valve, Is between 5 and 75 times, particularly preferably between 5 and 50 times, most preferably between 5 and 20 times. Such a distance of the respective gas pressure control valve from the respective engine dock yard connection of the respective engine, on the other hand, provides a properly sized adjustment distance of the respective fuel line downstream of the gas pressure control valve On the other hand, it is preferred in order to minimize the dynamics of gas pressure regulation by shortening the buffer area of the respective fuel lines downstream of the gas pressure regulation valve.

本発明の好ましいさらなる展開は、従属請求項および以下の記載から得られる。本発明の例示の実施形態が図面を用いてより詳細に説明されているが、これに限定されることはない。   Preferred further developments of the invention result from the dependent claims and the following description. Exemplary embodiments of the invention are described in more detail with the aid of the drawings, but are not limited thereto.

先行技術による多機関プラントの詳細図である。FIG. 1 is a detailed view of a multi-engine plant according to the prior art. 本発明による第1の多機関プラントの詳細図である。FIG. 1 is a detailed view of a first multi-engine plant according to the invention. 本発明による第2の多機関プラントの詳細図である。Figure 2 is a detailed view of a second multi-engine plant according to the present invention.

本発明は、具体的には船舶または海上用途のための、多機関プラントに関する。   The present invention relates to a multi-engine plant, in particular for marine or marine applications.

図1および図2は、本発明の多機関プラント21の例示的な実施形態を各々示しており、それらの各々は、図示した例示的な実施形態においてガスエンジンまたは二元燃料エンジンとして設計された3つのエンジン22、23、24を備えている。エンジンの数は本質的に純粋に例示である。エンジンの数は、2つ、3つ、または4つ以上になってもよい。   1 and 2 each show an exemplary embodiment of the multi-engine plant 21 of the present invention, each of which is designed as a gas engine or a dual fuel engine in the exemplary embodiment shown. Three engines 22, 23, 24 are provided. The number of engines is essentially purely exemplary. The number of engines may be two, three or more.

多機関プラント21は燃料供給システム25を備えており、燃料供給システム25を介して、エンジン22、23、24にガス燃料と給気との混合物が供給でき、燃料供給システム25はガス燃料のための燃料配管26、27、および28を備えており、燃料配管26、27、および28は、実施において通常であるように、エンジン22、23、24の方向においてそれぞれの内側管26a、27a、28aを介して燃料を案内するために、内側管26a、27a、28aと、それぞれの内側管26a、27a、28aを包囲する外側管26b、27b、および28bと、の二重壁とされた手法で成る。それぞれの内側管26a、27a、28aとそれぞれの外側管26b、27b、28bとの間に形成されたそれぞれの燃料配管26、27、28の中空の空間は、定められた漏れ排出のために供する。   The multi-engine plant 21 comprises a fuel supply system 25 through which a mixture of gaseous fuel and charge air can be supplied to the engines 22, 23, 24 and the fuel supply system 25 is for gaseous fuel. The fuel pipes 26, 27 and 28 are arranged in the direction of the engines 22, 23, 24 as is usual in practice, and the respective inner pipes 26a, 27a, 28a. In a double-walled manner with the inner tubes 26a, 27a, 28a and the outer tubes 26b, 27b, and 28b surrounding the respective inner tubes 26a, 27a, 28a to guide the fuel through the Become. The hollow spaces of the respective fuel pipes 26, 27, 28 formed between the respective inner pipes 26a, 27a, 28a and the respective outer pipes 26b, 27b, 28b serve for a defined leakage discharge. .

図2および図3による多機関プラント21のそれぞれの燃料供給システム25は、ガス圧力調節器29と、通気弁30と、閉止弁31と、をさらに備える。通気弁30は、それぞれの燃料配管26、27、28の内側管26a、27a、28aを通気するように供する。図2および図3の多機関プラント21の燃料供給システム25の場合、燃料供給システム25のすべての閉止弁31およびすべての通気弁30は、共通の、具体的には気密筐体34に位置決めされている。このため、一方で燃料供給システム25の構造が単純化でき、他方で燃料供給システム25の設置空間要件が縮小できる。   Each fuel supply system 25 of the multi-engine plant 21 according to FIGS. 2 and 3 further comprises a gas pressure regulator 29, a vent valve 30 and a shutoff valve 31. The vent valve 30 vents the inner tubes 26a, 27a, 28a of the respective fuel lines 26, 27, 28. In the case of the fuel supply system 25 of the multi-engine plant 21 of FIGS. 2 and 3, all the shut off valves 31 and all the vent valves 30 of the fuel supply system 25 are positioned in a common, in particular airtight housing 34 ing. Therefore, on the one hand, the structure of the fuel supply system 25 can be simplified, and on the other hand, the installation space requirements of the fuel supply system 25 can be reduced.

図2の例示的な実施形態において、燃料供給システム25は、共通の筐体34に位置決めされた、多機関プラント21の各々のエンジン22、23、24についての個別の閉止弁31および個別の通気弁30を備えており、図3の多機関プラント21の燃料供給システム25は、共通の筐体34に位置決めされた、すべてのエンジン22、23、24について共通である閉止弁31と、共通の通気弁30と、を備えている。   In the exemplary embodiment of FIG. 2, the fuel delivery system 25 is positioned in a common housing 34, with individual shut off valves 31 and individual vents for each engine 22, 23, 24 of the multi-engine plant 21. The fuel supply system 25 of the multi-engine plant 21 of FIG. 3 is equipped with a valve 30 and a shut-off valve 31 which is common to all engines 22, 23, 24 positioned in a common housing 34 and common. And a vent valve 30.

したがって、図2の例示的な実施形態では、共通の供給配管36が共通の筐体34へと通じており、その供給配管36には、エンジン22、23、24の個別の閉止弁31および個別の通気弁30が配置されている。筐体34に位置決めされた弁30、31から発するガス燃料をエンジン22、23、および24の方向に案内する燃料配管26、27、28は、共通の筐体34からの個別の排出配管として機能する。図3の例示的な実施形態では、多機関プラント21の燃料供給システム25は、共通の供給配管36において同じくこのように備えている。しかしながら、それぞれのエンジン22、23、24につながる個別の燃料配管26、27、28は、個別の閉止弁31および通気弁30の上流の筐体34の領域において既に枝分かれしていることはなく、筐体34の下流または共通の閉止弁31および通気弁30の下流だけで枝分かれしている。   Thus, in the exemplary embodiment of FIG. 2, the common supply piping 36 leads to the common housing 34, which supplies individual shut off valves 31 of the engines 22, 23, 24 and the individual A vent valve 30 is arranged. Fuel pipes 26, 27, 28 for guiding gas fuel emitted from the valves 30, 31 positioned in the housing 34 in the direction of the engines 22, 23, 24 function as separate exhaust pipes from the common housing 34. Do. In the exemplary embodiment of FIG. 3, the fuel supply system 25 of the multi-engine plant 21 is likewise provided in the common supply line 36. However, the individual fuel lines 26, 27, 28 leading to the respective engines 22, 23, 24 are not already branched off in the area of the individual shut off valve 31 and the housing 34 upstream of the vent valve 30, It branches only downstream of the housing 34 or downstream of the common closing valve 31 and vent valve 30.

図2および図3のそれぞれの多機関プラント21、つまり、多機関プラント21のそれぞれの燃料供給システム25は、各々のエンジン22、23、24のための個別のガス圧力調節弁29を備えており、そのガス圧力調節弁29は、閉止弁31の下流および通気弁30の下流であって、閉止弁31および通気弁30のための共通の筐体34の下流に位置決めされており、つまり、各々のガス圧力調節弁29は別々にあり、具体的にはガス圧力調節弁29のための気密筐体35にある。   The multi-engine plant 21 of each of FIGS. 2 and 3, ie, the fuel supply system 25 of each of the multi-engine plant 21, is provided with a separate gas pressure regulator valve 29 for each engine 22, 23, 24. The gas pressure control valve 29 is positioned downstream of the shut-off valve 31 and downstream of the vent valve 30 and downstream of a common housing 34 for the shut-off valve 31 and the vent valve 30, ie each The gas pressure control valve 29 is separately located, in particular in the gastight housing 35 for the gas pressure control valve 29.

先行技術から知られている多機関プラント31と対照的に、ガス圧力調節弁29は、エンジンまでの明確な距離を伴って閉止弁および通気弁の上流で位置決めされておらず、むしろ、エンジン22、23、24までの比較的短い距離を伴って通気弁30および閉止弁31の下流に位置決めされており、それぞれのエンジンにつながるそれぞれの燃料配管26、27、および28についてのそれぞれのエンジン22、23、24のいわゆるエンジンドックヤード連結部までのそれぞれのガス圧力調節弁29の距離が、それぞれのガス圧力調節弁29のそれぞれ下流のそれぞれの燃料配管26、27、および28の定められた調節距離の提供を目的として、ならびにそれぞれのガス圧力調節弁29のそれぞれ上流のそれぞれの燃料配管26、27、および28の緩衝区域の短縮と、ひいてはガス圧力調節の動力学の最適化と、を目的として、設計されている。   In contrast to the multi-engine plant 31 known from the prior art, the gas pressure control valve 29 is not positioned upstream of the shut off valve and the vent valve with a clear distance to the engine, but rather the engine 22. , Each of the engines 22 for the respective fuel lines 26, 27 and 28 which are positioned downstream of the venting valve 30 and the closing valve 31 with a relatively short distance up to 23, 24 and to the respective engine The distance of the respective gas pressure control valve 29 to the so-called engine dock yard connection of 23, 24 is a defined control distance of the respective fuel line 26, 27 and 28 respectively downstream of the respective gas pressure control valve 29. To shorten the buffer area of the respective fuel lines 26, 27 and 28 upstream of the respective gas pressure control valve 29, and thus the power of the gas pressure control. Optimization and for the purpose of being designed.

この場合に、それぞれのエンジンにそれぞれつながるそれぞれの燃料配管26、27、および28について、それぞれのエンジン22、23、24のエンジンドックヤード連結部までのそれぞれのガス圧力調節弁29の距離は、それぞれのガス圧力調節弁29の公称幅の5倍から100倍までの間、好ましくは5倍から75倍までの間、特に好ましくは5倍から50倍までの間、最も好ましくは5倍から20倍までの間になる。   In this case, the distance of each gas pressure control valve 29 to the engine dock yard connection part of each engine 22, 23, 24 for each fuel pipe 26, 27 and 28 respectively connected to each engine is respectively Between 5 and 100 times, preferably 5 to 75 times, particularly preferably 5 to 50 times and most preferably 5 to 20 times the nominal width of the gas pressure control valve 29 of It will be between.

ガス圧力調節弁29の筐体35によって定められた内部空間と、閉止弁31および通気弁30の共通の筐体34によって定められた内部空間と、は起こり得るガス燃料の漏れを閉止弁31および通気弁30の共通の筐体34の方向で案内し、共通の筐体34を介して定められた手法でガス燃料を排出するために、それぞれの内側管26a、27a、28aとそれぞれの外側管26b、27b、28bとの間に形成された燃料配管26、27、28の中空の空間を介して結合されている。図2および図3では、破線の矢印は、この点において多機関プラント21の燃料供給システム25の曝気37を示している。この曝気37を除いて、筐体34は優先的な気密である。この曝気37の入口は、エンジン22、23、24の領域と、共通の筐体34の領域と、燃料配管26、27、28の領域と、において優先的には形成される。この曝気37の出口は、筐体34の領域において優先的には形成される。   The internal space defined by the housing 35 of the gas pressure control valve 29 and the internal space defined by the common housing 34 of the shutoff valve 31 and the vent valve 30 have the possibility of leakage of gas fuel shut off. A respective inner pipe 26a, 27a, 28a and a respective outer pipe for guiding in the direction of the common housing 34 of the vent valve 30 and for discharging the gas fuel in a defined manner via the common housing 34 The hollow spaces of fuel pipes 26, 27, 28 formed between 26b, 27b, 28b are connected. In FIGS. 2 and 3, the dashed arrows indicate the aeration 37 of the fuel supply system 25 of the multi-engine plant 21 at this point. With the exception of the aeration 37, the housing 34 is preferentially air tight. The inlet of the aeration 37 is preferentially formed in the area of the engines 22, 23, 24, the area of the common housing 34, and the area of the fuel pipes 26, 27, 28. The outlet of the aeration 37 is preferentially formed in the area of the housing 34.

ガス圧力調節弁29の下流では、ガス燃料は、ガス燃料と給気との混合物をそれぞれの混合物形成ユニット32の領域において提供するために、およびこの混合物をそれぞれのエンジン22、23、24のシリンダ33へと供給するために、燃料配管26、27、28の内側管26a、27a、28aを介してそれぞれのエンジン22、23、24の混合物形成ユニット32に供給可能である。   Downstream of the gas pressure regulating valve 29, the gaseous fuel is provided to provide a mixture of gaseous fuel and charge air in the area of the respective mixture forming unit 32 and the cylinder of the respective engine 22, 23, 24. It is possible to supply the mixture forming units 32 of the respective engines 22, 23, 24 via the inner pipes 26 a, 27 a, 28 a of the fuel lines 26, 27, 28 to supply 33.

したがって、本発明による複数のエンジンを伴う多機関プラントでは、ガス燃料のための燃料供給システムのすべての閉止弁および通気弁が共通の筐体に位置決めされている。ガス圧力調節弁は、閉止弁および通気弁のためのこの筐体の下流において、別々の筐体でエンジンへの短い距離を伴って配置されている。本発明を通じて、多機関プラントの構造は単純化できる。設置空間およびコストが節約できる。ガス圧力調節の動力学が改善できる。   Thus, in a multi-engine plant with multiple engines according to the present invention, all shut off valves and vent valves of the fuel supply system for gas fuel are positioned in a common housing. A gas pressure control valve is arranged downstream of this housing for the shutoff valve and the venting valve in a separate housing with a short distance to the engine. Through the present invention, the structure of a multi-engine plant can be simplified. Installation space and cost can be saved. The dynamics of gas pressure regulation can be improved.

1 多機関プラント
2 エンジン
3 エンジン
4 エンジン
5 燃料供給システム
6 燃料配管
6a 内側管
6b 外側管
7 燃料配管
7a 内側管
7b 外側管
8 燃料配管
8a 内側管
8b 外側管
9 ガス圧力調節弁
10 通気弁
11 閉止弁
12 混合物形成ユニット
13 シリンダ
14 筐体
21 多機関プラント
22 エンジン
23 エンジン
24 エンジン
25 燃料供給システム
26 燃料配管
26a 内側管
26b 外側管
27 燃料配管
27a 内側管
27b 外側管
28 燃料配管
28a 内側管
28b 外側管
29 ガス圧力調節弁
30 通気弁
31 閉止弁
32 混合物形成ユニット
33 シリンダ
34 筐体
35 筐体
36 供給配管
37 曝気 1 Multi-engine plant
2 Engine
3 Engine
4 engine
5 Fuel supply system
6 Fuel piping
6a inner tube
6b outer tube
7 Fuel piping
7a inner tube
7b outer tube
8 Fuel piping
8a inner tube
8b outer tube
9 gas pressure control valve
10 vent valve
11 Closing valve
12 mixture formation unit
13 cylinders
14 Case
21 Multi-engine plant
22 engine
23 engine
24 engine
25 Fuel supply system
26 Fuel piping
26a inner tube
26b outer tube
27 Fuel piping
27a inner tube
27b Outer tube
28 Fuel piping
28a inner tube
28b outer tube
29 Gas pressure control valve
30 vent valve
31 closing valve
32 mixture formation unit
33 cylinders
34 enclosure
35 enclosures
36 Supply piping
37 Aeration

Claims (10)

ガスエンジンまたは二元燃料エンジンとして設計される少なくとも2つのエンジン(22、23、24)と、
燃料供給システム(25)であって、該燃料供給システムを介して、前記エンジン(22、23、24)にガス燃料と給気との混合物が供給可能である、燃料供給システム(25)と、
を備え、
前記燃料供給システム(25)は、前記ガス燃料のための燃料配管(26、27、28)と、前記ガス燃料のための前記燃料配管(26、27、28)に割り当てられるガス圧力調節弁(29)、閉止弁(31)、および通気弁(30)と、を備え、
前記燃料供給システム(25)のすべての前記閉止弁(31)およびすべての前記通気弁(30)は、共通の筐体(34)内に位置決めされることを特徴とする多機関プラント(21)。 At least two engines (22, 23, 24) designed as gas engines or dual fuel engines;
A fuel supply system (25), wherein a mixture of gaseous fuel and charge air can be supplied to the engine (22, 23, 24) through the fuel supply system;
Equipped with
The fuel supply system (25) comprises a fuel pressure control valve (26, 27, 28) for the gas fuel and a gas pressure control valve (26, 27, 28) for the gas fuel. 29), a closing valve (31), and a vent valve (30);
Multi-engine plant (21) characterized in that all the closing valves (31) and all the ventilation valves (30) of the fuel supply system (25) are positioned in a common housing (34) . すべての前記エンジン(22、23、24)について、前記共通の筐体(34)内に位置決めされる共通の閉止弁(31)および共通の通気弁(30)が存在することを特徴とする、請求項1に記載の多機関プラント。   Characterized in that for all said engines (22, 23, 24) there is a common closing valve (31) and a common venting valve (30) positioned in said common housing (34) The multi-engine plant according to claim 1. すべての前記エンジン(22、23、24)について、前記共通の筐体(34)内に位置決めされる個別の閉止弁(31)および個別の通気弁(30)が存在することを特徴とする、請求項1に記載の多機関プラント。   Characterized in that for every said engine (22, 23, 24) there is a separate shut off valve (31) and a separate vent valve (30) positioned in said common housing (34) The multi-engine plant according to claim 1. 各々の前記エンジン(22、23、24)について、前記閉止弁(31)および前記通気弁(30)の下流に位置決めされる個別のガス圧力調節弁(29)が存在することを特徴とする、請求項1から3のいずれか一項に記載の多機関プラント。   Characterized in that for each said engine (22, 23, 24) there is a separate gas pressure regulating valve (29) positioned downstream of said shut-off valve (31) and said venting valve (30) The multi-engine plant according to any one of claims 1 to 3. 前記ガス圧力調節弁(29)の各々は、別々の筐体(35)内に位置決めされることを特徴とする、請求項4に記載の多機関プラント。   A multi-engine plant according to claim 4, characterized in that each of said gas pressure control valves (29) is positioned in a separate housing (35). それぞれの前記エンジン(22、23、24)につながるそれぞれの前記燃料配管(26、27、28)について、それぞれの前記エンジンのエンジンドックヤード連結部までのそれぞれの前記ガス圧力調節弁(29)の距離が、調節距離の提供を目的として、および、前記燃料配管(26、27、28)の緩衝区域の短縮を目的として、設計されることを特徴とする、請求項4または5に記載の多機関プラント。   For each of the fuel lines (26, 27, 28) leading to the respective engine (22, 23, 24) of the respective gas pressure regulating valve (29) to the engine dock yard connection of the respective engine A multi-focal point according to claim 4 or 5, characterized in that the distance is designed for the purpose of providing an adjustment distance and for the purpose of shortening the buffer zone of the fuel line (26, 27, 28). Institutional plant. それぞれの前記エンジン(22、23、24)につながるそれぞれの前記燃料配管(26、27、28)について、それぞれの前記エンジンのエンジンドックヤード連結部までのそれぞれの前記ガス圧力調節弁(29)の距離が、前記ガス圧力調節弁(29)の公称幅の5倍から100倍までの間になることを特徴とする、請求項4から6のいずれか一項に記載の多機関プラント。   For each of the fuel lines (26, 27, 28) leading to the respective engine (22, 23, 24) of the respective gas pressure regulating valve (29) to the engine dock yard connection of the respective engine A multi-engine plant according to any one of claims 4 to 6, characterized in that the distance is between 5 and 100 times the nominal width of the gas pressure control valve (29). それぞれの前記エンジン(22、23、24)につながるそれぞれの前記燃料配管(26、27、28)について、それぞれの前記エンジンの前記エンジンドックヤード連結部までのそれぞれの前記ガス圧力調節弁(29)の前記距離は、前記ガス圧力調節弁(29)の公称幅の5倍から75倍までの間になることを特徴とする、請求項7に記載の多機関プラント。   For each said fuel line (26, 27, 28) connected to each said engine (22, 23, 24), each said gas pressure regulating valve (29) up to said engine dock yard connection of each said engine A multi-engine plant according to claim 7, characterized in that the said distance is between 5 and 75 times the nominal width of the gas pressure regulating valve (29). それぞれの前記エンジン(22、23、24)につながるそれぞれの前記燃料配管(26、27、28)について、それぞれの前記エンジンの前記エンジンドックヤード連結部までのそれぞれの前記ガス圧力調節弁(29)の前記距離は、前記ガス圧力調節弁(29)の公称幅の5倍から50倍までの間になることを特徴とする、請求項7に記載の多機関プラント。   For each said fuel line (26, 27, 28) connected to each said engine (22, 23, 24), each said gas pressure regulating valve (29) up to said engine dock yard connection of each said engine A multi-engine plant according to claim 7, characterized in that the said distance is between 5 and 50 times the nominal width of the gas pressure regulating valve (29). それぞれの前記エンジン(22、23、24)につながるそれぞれの前記燃料配管(26、27、28)について、それぞれの前記エンジンの前記エンジンドックヤード連結部までのそれぞれの前記ガス圧力調節弁(29)の前記距離は、前記ガス圧力調節弁(29)の公称幅の5倍から20倍までの間になることを特徴とする、請求項7に記載の多機関プラント。   For each said fuel line (26, 27, 28) connected to each said engine (22, 23, 24), each said gas pressure regulating valve (29) up to said engine dock yard connection of each said engine A multi-engine plant according to claim 7, characterized in that the said distance is between 5 and 20 times the nominal width of the gas pressure regulating valve (29).
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