• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A multi-engine plant (21), with at least two engines (22, 23, 24) designed as gas engines or dual-fuel engines, with a fuel supply system (25), via which the engines (22, 23, 24) are suppliable with a mixture of a gaseous fuel and charge air, wherein the fuel supply system comprises fuel lines (26, 27, 28) for the gaseous fuel and gas pressure regulating valves (29), shut-off valves (31) and venting valves (30) assigned to the fuel lines for the gaseous fuel, wherein all shut-off valves (31) and all venting valves (30) of the fuel supply system (25) are positioned in a common housing (34).
    公开号:FI20185735A1
    申请号:FI20185735
    申请日:2018-09-04
    公开日:2019-03-09
    发明作者:Michael Bechstein
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    MAN Diesel & Turbo SE
    Multi-engine plant
    The invention relates to a multi-engine plant.
    Fig. 1 shows details of a multi-engine plant 1 known from the prior art, such as employed for example on ships or in marine applications. Accordingly, the multi-engine plant 1 shown in Fig. 1 comprises multiple 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 the multi-engine plant 1, via which the engines 2, 3 and 4 are suppliable with a mixture of a gaseous fuel and charge air.
    The fuel supply system 5 of the multi-engine plant 1 known from the prior art comprises fuel lines 6, 7, 8 and gas pressure regulating valves 9, venting valves 10 and shutoff valves 11 assigned to the fuel lines 6, 7, 8 for the gaseous fuel. By way of the fuel lines 6, 7 and 8 of the fuel supply system 5, gaseous fuel can be delivered, dependent on the switching position of the gas pressure regulating valves 9, venting valves 10 and shut-off valves 11, in the direction of the engines 2, 3 and 4 of the multi-engine plant 1, wherein each of the engines 2, 3, 4 of the multi-engine plant 1 is assigned a mixture-forming unit 12, via which the gaseous fuel can be mixed with charge air upstream of cylinders 13 of the respective engine 2, 3 and 4 of the multi-engine plant 1, in order to supply a mixture of gas and charge air for combustion to the cylinders 13 of the engines 2 to 4 in this way. For the sake of simplicity, a single cylinder 13 is shown for each engine 2, 3 and 4 of the multi-engine plant 1 in Fig. 1.
    20185735 prh 04-09- 2018
    In the multi-engine plant 1 according to Fig. 1 known from the prior art, the fuel supply system 5 comprises an individual gas pressure regulating valve 9, individual venting valves 10 as well as individual shut-off valves 11 for each engine 2, 3 and 4, which are received in an individual housing 14 for each engine 2, 3 and 4. The fuel lines 6, 7 and 8 are double-walled pipes, wherein an inner pipe 6a, 7a and 8a conducts the respective gaseous fuel in the direction of the respective mixture-forming unit 12 of the respective engine 2, 3 and 4, and wherein an outer pipe 6b, 7b and 8b surrounds the respective inner pipe 6a, 7a, 8a and discharges any possible gas leakage in the direction of the respective housing 14.
    Multi-engine plants known from the prior art have a relatively complex construction. There is a need for simplifying the construction of multi-engine plants. There is a need, in particular, for reducing the installation space needed by the assemblies of the fuel supply system of the multi-engine plant by a simplification of the construction of the fuel supply system.
    Starting out from this, the present invention is based on the object of creating a new type of multi-engine plant. This object is solved through a multi-engine plant according to Claim 1. According to the invention, all shutoff valves and all venting valves of the fuel supply system are positioned in a common housing.
    Because of the fact that all shut-off valves and venting valves of the fuel supply system of the multi-engine plant are positioned in a common housing, the construction of the multi-engine plant is simplified on the one hand, while the installation space requirement of the components of the fuel supply system of the multi-engine plant in particular is reduced.
    According to a further development of the invention, common shut-off valves and common venting valves, which are positioned in the common housing, are present for all engines. Alternatively, individual shut-off valves and individual venting valves are present for all engines, which are positioned in the common housing. In particular when for all engines of the multi-engine plant common shutoff valves and common venting valves are present, which are positioned in the common housing, the construction of the multi-engine plant can be particularly greatly simplified and the installation space requirement, in particular of the components of the fuel supply system, particularly greatly reduced.
    According to a further development of the invention, the fuel supply system of the multi-engine plant comprises an individual gas pressure regulating valve for each engine, which is positioned downstream of the shut-off valves and venting valves preferentially in a separate housing. By way of this, the construction of the multi-engine plant can be further simplified and the installation space requirement, in particular of the fuel supply system, further reduced.
    20185735 prh 04-09- 2018
    A distance of the respective gas pressure regulating valve to an engine dockyard connection of the respective engine for the respective fuel line leading to the respective engine is preferentially between 5 times and 100 times, preferably between 5 times and 75 times, particularly preferably between 5 times and 50 times, most preferably between 5 pressure respective respective engine is times and 20 times the nominal width of the regulating valve.
    gas pressure engine dockyard gas
    Such a regulating connection distance of valve from the the of the respective preferred in order to provide, on the one hand, an adequately large regulating distance of the respective fuel line downstream of the gas pressure regulating valve and on the other hand minimise the dynamics of the gas pressure regulation by reducing a buffer section of the respective fuel line downstream of the gas pressure regulating valve .
    Preferred further developments of the invention are obtained from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail by way of the drawing without being restricted to this. There it shows:
    20185735 prh 04-09- 2018
    Fig. 1: details of a multi-engine plant according to the prior art;
    Fig. 2: details of a first multi-engine plant according to the invention; and
    Fig. 3: details of a second multi-engine plant according to the invention.
    The invention relates to a multi-engine plant, in particular for ships or maritime applications.
    Fig. 1 and 2 each show exemplary embodiments of multiengine plants 21 according to the invention, each of which comprise three engines 22, 23, 24 designed as gas engines or dual-fuel engines in the shown exemplary embodiments. The number of the engines is purely exemplary in nature. The number of the engines can also amount to two, three or more than three.
    The multi-engine plants 21 comprise a fuel supply system 25, via which the engines 22, 23, 24 can be supplied with a mixture of a gaseous fuel and charge air, wherein the fuel supply system 25 comprises fuel lines 26, 27 and 28 for the gaseous fuel, which, as is usual m the practice, consist in a double-walled manner of an inner pipe 26a, 27a, 28a and an outer pipe 26b, 27b and 28b surrounding the respective inner pipe 26a, 27a, 28a, in order to conduct fuel via the respective inner pipe 26a, 27a, 28a in the
    direction of theengines 22,respectivefuellines26,respectiveinnerpipe2 6a,outer pipe26b,27b,2 8b s
    discharge .
    23, 24. A hollow space of the
    27, 28 formed between the
    27a, 28a and the respective rves for the defined leakage
    The respective fuel supply system 25 of the multi-engine plant 21 according to Fig. 2 and 3 furthermore comprises gas pressure regulators 29, venting valves 30 as well as shut-off valves 31. The venting valves 30 serve for venting the inner pipe 26a, 27a, 28a of the respective fuel lines 26, 27, 28. In the case of the fuel supply systems 25 of the multi-engine plants 21 of Fig. 2 and 3, all shut-off valves 31 as well as all venting valves 30 of the fuel supply system 25 are positioned in a common, in particular gas-tight housing 34. Because of this, the construction of the fuel supply system 25 can be simplified on the one hand and the installation space requirement of the same reduced on the other hand.
    20185735 prh 04-09- 2018
    While in the exemplary embodiment of Fig. 2 the fuel supply system 25 comprises individual shut-off valves 31 as well as individual venting valves 30 for each engine 22, 23, 24 of the multi-engine plant 21, which are positioned in the common housing 34, the fuel supply system 25 of the multiengine plant 21 of Fig. 3 comprises shut-off valves 31 that are common for all engines 22, 23 and 24 as well as common venting valves 30, which are positioned in the common housing 34.
    In the exemplary embodiment of Fig. 2, a common supply line 36 accordingly opens into the common housing 34, in which the individual shut-off valves 31 and individual venting valves 30 of the engines 32, 33, 34 are arranged. The fuel lines 26, 27, 28 which conduct the gaseous fuel emanating from the valve 30, 31 positioned in the housing 34 in the direction of the engines 22, 23 and 24 function as individual discharge lines from the common housing 34. In the exemplary embodiment of Fig. 3, the fuel supply system 25 of the multi-engine plant 21 likewise comprises such at common supply line 36. The individual fuel lines 26, 27, 28 leading to the respective engines 22, 23, 24 however do not already branch off in the region of the housing 34 upstream of the individual shut-off valves 31 and venting valves 30, but only downstream of the housing 34 or downstream of the common shut-off valves 31 and venting valves 30.
    The respective multi-engine plant 21 of Fig. 2 and 3, namely the respective fuel supply system 25 of the same, comprises an individual gas pressure regulating valve 29 for each engine 22, 23, 24, which is positioned downstream of the shut-off valves 31 and downstream of the venting valves 30 as well as downstream of the common housing 34 for the shut-off valves 31 and venting valves 30, namely each gas pressure regulating valve 29 in a separate, in particular gas-tight housing 35 for the same.
    20185735 prh 04-09- 2018
    In contrast with the multi-engine plants 31 known the gas upstream pressure of the a clear from the regulating valves 29 shut-off valves distance to the prior art, positioned venting valves with rather downstream of the venting valves 31 with a relatively short 22, 23, 24, wherein a distance pressure regulating valve 29 to a so-called valves 30 distance of the as are not well as but engines, and shut-off to the engines respective gas engine dockyard connection of the respective engine 22, 23, 24 for the respective fuel line 26, 27, 28 leading to the respective engine is designed with a view to the provision of a defined regulating distance of the respective fuel line 26, 27 and 28 respectively downstream of the respective gas pressure regulating valve 29 and with a view to a reduction of the buffer section of the respective fuel line 26, 27 and 28 respectively upstream of the respective gas pressure regulating valve 29 and accordingly optimisation of the dynamics of the gas pressure regulation.
    The distance of the respective gas pressure regulating valve 29 to the engine dockyard connection of the respective engine 22, 23, 24 for the respective fuel line 26, 27 and 28 respectively leading to the respective engine in this case preferentially amounts to between 5 times and 100 times, preferably between 5 times and 75 times, particularly preferably between 5 times and 50 times, most preferably between 5 times and 20 times the nominal width of the respective gas pressure regulating valve 29.
    20185735 prh 04-09- 2018
    Interior spaces defined by the housing 35 of the gas pressure regulating valves 29 and an interior space defined by the common housing 34 of the shut-off valves 31 and venting valves 30 are coupled via the hollow spaces of the fuel lines 26, 27, 28 formed between the respective inner pipe 26a, 27a, 28a and the respective outer pipe 26b, 27b, 28b, in order to conduct any leakage of the gaseous fuel that may occur in the direction of the common housing 34 of the shut-off valves 31 and venting valves 30 and discharge the same in a defined manner via the common housing 34. In Fig. 2 and 3, dashed arrows show a aeration 37 of the fuel supply system 25 of the multi-engine plant 21 in this regard. Except for this aeration 37, the housing 34 is preferentially gas-tight. Inlets of this aeration 37 are preferentially formed in the region of the engines 22, 23, 24 in the region of the common housing 34 and in the region of the fuel lines 26, 27, 28. An outlet of this aeration 37 is preferentially formed in the region of the housing 34.
    Downstream of the gas pressure regulating valve 29, the gaseous fuel is suppliable to the mixture forming device 32 of the respective engine 22, 23, 24 via the inner pipes 26a, 27a, 28a of the fuel lines 26, 27, 28 in order to provide a mixture of gaseous fuel and charge air in the region of the respective mixture forming unit 32 and to supply this mixture to cylinders 33 of the respective engine 22, 23, 24.
    Accordingly, in a multi-engine plant with multiple engines according to the invention, all shut-off valves and venting valves of the fuel supply system for the gaseous fuel are positioned in a common housing. The gas pressure regulating valves are arranged downstream of this housing for the shut-off valves and venting valves with a short distance to the engines in separate housings. Through the invention, the construction of multi-engine plants can be simplified. Installation space and costs can be saved. The dynamics of the gas pressure regulation can be improved.
    20185735 prh 04-09- 2018
    20185735 prh 04-09- 2018
    LIST OF REFERENCE NUMBERS
    Multi-engine plant
    Engine
    Engine
    Engine
    Fuel supply system
    Fuel line
    6a Inner pipe
    6b Outer pipe
    Fuel line
    7a Inner pipe
    7b Outer pipe
    Fuel line
    8a Inner pipe
    8b Outer pipe
    Gas pressure regulating valve
    Shut-off valve
    Venting valve
    Mixture forming unit
    Cylinder
    Housing
    Multi-engine plant
    Engine
    Engine
    Engine
    Fuel supply system
    Fuel line
    26a Inner pipe
    26b Outer pipe
    Fuel line
    27a Inner pipe
    27b Outer pipe
    Fuel line
    28a Inner pipe
    28b Outer pipe
    Gas pressure regulating valve
    Shut-off valve
    Venting valve
    Mixture forming unit
    Cylinder
    Housing
    Housing
    Supply line
    Aeration
    权利要求:
    Claims (8)
    [1] 20185735 prh 04-09- 2018
    1. A multi-engine plant (21), with at least two engines (22, 23, 24) designed as gas engines or dual-fuel engines, with a fuel supply system (25), via which the engines (22, 23, 24) are suppliable with a mixture of a gaseous fuel and charge air, wherein the fuel supply system (25) comprises fuel lines (26, 27, 28) for the gaseous fuel and gas pressure regulating valves (29), shut-off valves (31) and venting valves (30) assigned to the fuel lines (26, 27, 28) for the gaseous fuel, characterized in that all shut-off valves (31) and all venting valves (30) of the fuel supply system (25) are positioned in a common housing (34).
    [2] 2. The multi-engine plant according to Claim 1, characterized in that for all engines (22, 23, 24) common shut-off valves (31) and common venting valves (30) are present which are positioned in the common housing (34).
    [3] 3. The multi-engine plant according to Claim 1, characterized in that for all engines (22, 23, 24) individual shut-off valves (31) and individual venting valves (30) are present, which are positioned in the common housing (34).
    [4] 4. The multi-engine plant according to any one of the
    Claims 1 to 3, characterized in that for each engine (22, 23, 24) an individual gas pressure regulating valve (29) is present, which is positioned downstream of the shut-off valves (31) and venting valves (30).
    [5] 5.
    The multi-engine characterized in plant that according each of the to Claim 4,
    [6] 6.
    regulating valves housing (35) .
    The multi-engine is positioned gas in a pressure separate plant characterized in that a according distance of pressure regulating valve (29) to connection of the to
    Claim
    4 or 5, the respective gas an engine dockyard respective engine (22, 23, 24) the respective fuel line (26, 27, 28) leading to respective engine is designed with a view to provision of a regulating distance and with a view to the for the the reduction of a buffer section of the fuel line multi-engine plant according to Claims 4 to 6, characterized in that a respective gas regulating valve (29) dockyard connection of the respective fuel line )
    The
    24) for the respective respective engine amounts times a nominal width of to between
    any one of the distance of the ) to an engine engine ( 22, 23, leading to the 5 times and 100
    regulating the gas pressure
    The multi-engine plant characterized in that the according distance of to the
    20185735 prh 04-09- 2018 regulating the gas pressure dockyard connection of respective respective times and fuel line to
    Claim 7, respective the engine leading engine for the to the engine (22, 2
    75 times the pressure regulating valve valve (29) respective , 27, 28)
    24) amounts to between 5 nominal width of the gas
    [7] 9. The multi-engine plant according to Claim 7, characterized in that the distance of the respective gas pressure regulating valve (29) to the engine
    [8] 10.
    dockyard connection of the respective respective fuel line engine (22, (26,
    23, times and 50 times the respective engine for the
    27, 28) leading to the
    24) amounts to between 5 nominal width of the gas pressure regulating valve (29).
    The multi-engine plant characterized in that the according distance of to the regulating the gas pressure dockyard connection of respective respective times and fuel line to
    Claim 7, respective the engine leading engine for the to the engine (22, 2
    20 times the valve (29) respective , 27, 28)
    24) amounts to between 5 nominal width of the gas pressure regulating valve (29).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2000282956A|1999-03-29|2000-10-10|Honda Motor Co Ltd|Gas fuel supply system for vehicle|
    JP2008025424A|2006-07-20|2008-02-07|Toyota Industries Corp|Fuel supply device for gas engine|
    KR101316552B1|2012-12-18|2013-10-15|현대중공업 주식회사|Lng fuel gas supply system of high pressure and low pressure dual-fuel engine|
    WO2015040267A1|2013-09-20|2015-03-26|Wärtsilä Finland Oy|Integrated fuel storage system and gas valve unit|
    KR20150063258A|2013-11-29|2015-06-09|삼성중공업 주식회사|Fuel supply system and fuel supply method|
    EP3098430B1|2015-05-28|2019-09-04|Caterpillar Motoren GmbH & Co. KG|Vessel gas system with double-walled gas valve unit|CN110043362B|2019-04-01|2020-07-24|浙江吉利新能源商用车集团有限公司|Cold start system for methanol vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017215886.7A|DE102017215886A1|2017-09-08|2017-09-08|More engine plant|
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