WO2011007826A1 - Dme fuel supply system and method for cooling dme fuel - Google Patents
Dme fuel supply system and method for cooling dme fuel Download PDFInfo
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- WO2011007826A1 WO2011007826A1 PCT/JP2010/061964 JP2010061964W WO2011007826A1 WO 2011007826 A1 WO2011007826 A1 WO 2011007826A1 JP 2010061964 W JP2010061964 W JP 2010061964W WO 2011007826 A1 WO2011007826 A1 WO 2011007826A1
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- 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
- F02M21/08—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for non-gaseous fuels
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- 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
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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
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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
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
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- 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
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- 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
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- 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
- F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
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- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
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- 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
- Y02T10/12—Improving ICE efficiencies
-
- 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
Definitions
- the present invention relates to a technique for cooling DME fuel flowing in a fuel circuit for supplying DME fuel from a fuel tank to a DME engine.
- a fuel circuit for supplying DME (dimethyl ether) fuel to a DME engine is known.
- the fuel circuit includes, for example, a supply line that supplies fuel from the fuel tank to the DME engine, and a return line that returns fuel from the DME engine to the fuel tank.
- the fuel that passes through the return line is heated by the engine. For this reason, the temperature of the fuel in the fuel circuit tends to increase.
- Patent Document 1 also discloses a technique for cooling the DME fuel in the fuel circuit.
- DME has a low boiling point and easily evaporates. For this reason, when the temperature of the fuel increases, the fuel evaporates in the fuel circuit. When gas is mixed with liquid fuel, the pressure of the fuel supplied to the engine becomes unstable. Further, when cavitation occurs due to the evaporation of fuel, the rotation speed of the feed pump decreases. As a result, the fuel cannot be properly supplied to the engine.
- the present invention provides a DME fuel supply system and a DME fuel cooling method capable of efficiently cooling the fuel in the fuel circuit without increasing the output of the chiller.
- a first aspect of the present invention includes a supply line for supplying DME fuel from a fuel tank to a DME engine, a feed pump for sending the DME fuel along the supply line, and the DME fuel from the DME engine to the fuel tank.
- a DME fuel supply system comprising: a bypass line that communicates a downstream side of the first heat exchanger and an upstream side of the second heat exchanger of the return line.
- the DME fuel supply system according to the first aspect of the present invention adopts the configurations (a) and (b).
- the first chiller and the second chiller are the same chiller, and the same chiller supplies a cooling refrigerant to both the first heat exchanger and the second heat exchanger.
- a second aspect of the present invention is a DME fuel cooling method for circulating between a fuel tank and a DME engine through a fuel circuit, the first cooling step cooling the DME fuel delivered from the fuel tank, After the first cooling step, the DME fuel is distributed to a first fuel that passes through the DME engine and a second fuel that does not pass through the DME engine;
- a DME fuel cooling method comprising: a merging step for merging one fuel and the second fuel; and a second cooling step for cooling the DME fuel merged in the merging step.
- the DME fuel cooling method according to the second aspect of the present invention adopts the configuration (c).
- the distribution step maintains or changes a ratio of the flow rate of the second fuel to the flow rate of the first fuel.
- the present invention can efficiently cool the fuel in the fuel circuit without increasing the output of the chiller.
- FIG. 1 is a schematic diagram showing a fuel supply system and a DME supply source 100.
- the fuel supply system is a system that supplies DME fuel to the engine 2.
- the DME supply source 100 supplies DME fuel to the fuel tank 3 of the fuel supply system.
- the fuel supply system includes a fuel circuit 1 for supplying fuel.
- the fuel circuit 1 includes an engine 2, a fuel tank 3, and a high pressure pump 4.
- the fuel circuit 1 includes a supply line 10 that supplies fuel from the fuel tank 3 to the engine 2, a return line 20 that returns fuel from the engine 2 to the fuel tank 3, and a bypass line that connects the supply line 10 and the return line 20 to each other.
- the supply line 10 includes a first sub supply line 11, a second sub supply line 12, a third sub supply line 13, and a fourth sub supply line 14.
- the return line 20 includes a first sub return line 21, a second sub return line 22, a third sub return line 23, and a fourth sub return line 24.
- the bypass line 30 includes a first sub bypass line 31 and a second sub bypass line 32.
- the high-pressure pump (feed pump) 4 is disposed between the first sub supply line 11 and the second sub supply line 12.
- the engine 2 is disposed between the fourth sub supply line 14 and the first sub return line 21.
- the fuel tank 3 is disposed between the fourth sub return line 24 and the first sub supply line 11.
- the branch part 1 a is a connection part between the supply line 10 and the bypass line 30.
- the second sub supply line 12 branches into a third sub supply line 13 and a first sub bypass line 31 in the branching section 1a.
- the junction 1 b is a connection between the return line 20 and the bypass line 30.
- the second sub bypass line 32 and the third sub return line 23 merge with the fourth sub return line 24 at the junction 1b.
- the fuel circuit 1 includes two solenoid valves CV-1 and CV-2.
- the first electromagnetic valve CV-1 is disposed between the third sub supply line 13 and the fourth sub supply line 14.
- the second electromagnetic valve CV-2 is disposed between the first sub return line 21 and the second sub return line 22.
- the fuel circuit 1 includes two pressure regulating valves 41 and 42.
- the first pressure regulating valve 41 is disposed between the first sub bypass line 31 and the second sub bypass line 32.
- the second pressure regulating valve 42 is disposed between the second sub return line 22 and the third sub return line 23.
- the two pressure regulating valves 41 and 42 are provided to keep the pressure of the fuel supplied to the engine 2 constant.
- the pressure from the high pressure pump 4 to the upstream side of the two pressure regulating valves 41 and 42 is kept high.
- the pressure from the downstream side of the two pressure regulating valves 41 and 42 to the high pressure pump 4 is low.
- the high pressure is 1.6 MPa and the low pressure is 0.6 MPa.
- the fuel circuit 1 includes a check valve 43 between the fuel tank 3 and the fourth sub return line 24.
- the check valve 43 prevents fuel from flowing from the fuel tank 3 to the fourth sub return line 24.
- the fuel supply system includes five pressure sensors PS-2, PS-3, PS-4, PS-5, and PS-6 for detecting the pressure of the fuel in each part of the fuel circuit 1.
- the second pressure sensor PS-2 detects the pressure of the fuel in the first sub supply line 11.
- the pressure of the fuel in the first sub supply line 11 is equal to the pressure of the fuel in the fuel tank 3.
- the third pressure sensor PS-3 detects the pressure of the fuel in the second upstream supply line 12.
- the fourth pressure sensor PS-4 detects the pressure of the fuel in the fourth sub supply line 14.
- the fifth pressure sensor PS-5 detects the fuel pressure in the second sub-return line 22.
- the sixth pressure sensor PS-6 detects the pressure of the fuel in the fourth sub return line 24.
- the fuel supply system includes a cooling means for cooling the fuel in the fuel circuit 1.
- the cooling means is a chiller 5 (an apparatus for circulating a low-temperature refrigerant).
- the chiller 5 includes heat exchangers 51 and 52 in the supply line 10 and the return line 20.
- the first heat exchanger 51 is disposed in the second sub supply line 12.
- the second heat exchanger 52 is disposed in the fourth sub return line 24.
- the chiller 5 cools the fuel in the supply line 10 and the return line 20 via the two heat exchangers 51 and 52.
- the fuel supply system includes seven temperature sensors 61 to 67 for detecting the temperature of the fuel in each part of the fuel circuit 1.
- the first temperature sensor 61 detects the temperature of the fuel in the first sub supply line 11.
- the second temperature sensor 62 and the third temperature sensor 63 detect the temperature of the fuel on the upstream side and the downstream side of the first heat exchanger 51 in the second sub supply line 12.
- the fourth temperature sensor 64 detects the temperature of the fuel at the end of the supply line 10, that is, at the inlet of the engine 2.
- the fifth temperature sensor 65 detects the temperature of the fuel at the start end of the return line 20, that is, at the outlet of the engine 2.
- the sixth temperature sensor 66 and the seventh temperature sensor 67 detect the temperature of the fuel on the upstream side and the downstream side of the second heat exchanger 52 in the fourth sub return line 24.
- the fuel supply system includes a control device 6.
- the control device 6 can control driving of the engine 2, the high-pressure pump 4, and the chiller 5.
- the control device 6 can maintain or change the opening degree of the two electromagnetic valves CV-1 and CV-2.
- the control device 6 can confirm detection information from the five pressure sensors PS-2 to PS-6 and the seven temperature sensors 61 to 67.
- the fuel in the fuel circuit 1 circulates through the fuel tank 3 and the engine 2 through four steps.
- the four steps are a first cooling step, a distribution step, a merging step, and a second cooling step.
- the control device 6 starts driving the high-pressure pump 4 and the chiller 5 before starting the engine 2.
- the fuel in the fuel tank 3 flows along the supply line 10.
- the fuel is cooled by the first heat exchanger 51 when passing through the second sub supply line 12. This is the first cooling step.
- the fuel that has passed through the second sub supply line 12 is distributed to the first fuel supplied to the third sub supply line 13 and the second fuel supplied to the first sub bypass line 31 in the branch portion 1a.
- the ratio of the flow rates of the fuel before branching, the first fuel, and the second fuel is, for example, 20:10:10.
- the first fuel is supplied to the engine 2 via the third sub supply line 13 and the fourth sub supply line 14.
- the first fuel is heated by the heat of the engine 2 in the engine 2. For this reason, the temperature of the first fuel rises.
- the first fuel passes through the engine 2, it reaches the junction 1 b via the first sub return line 21 and the second sub return line 22. Part of the first fuel is consumed in the engine 2. For this reason, the ratio of the flow rate before and after passage of the engine 2 is, for example, 10: 9.
- the second fuel reaches the junction 1b via the first sub-bypass line 31 and the second sub-bypass line 32.
- the first fuel and the second fuel merge at the junction 1b. This is the merging process.
- the ratio of the flow rates of the first fuel after passing through the engine 2, the second fuel, and the joined fuel is, for example, 9:10:19.
- the joined fuel is cooled by the second heat exchanger 52 when passing through the fourth sub return line 24. This is the second cooling step.
- the fuel is cooled in the supply line 10 and the return line 20.
- the fuel circuit 1 is provided with a bypass line 30. For this reason, not only the first fuel that passes through the engine 2 but also the second fuel that does not pass through the engine 2 is cooled by the chiller 5.
- the cooling efficiency of the fuel can be increased by making the flow rate of the second fuel larger than the flow rate of the first fuel.
- the flow rate of the first fuel and the flow rate of the second fuel can be changed by changing the opening degree of the first electromagnetic valve CV-1 and the second electromagnetic valve CV-2.
- the first electromagnetic valve CV-1 and the second electromagnetic valve CV-2 are disposed on the inlet side and the outlet side of the engine 2. For this reason, as the opening degree of the first solenoid valve CV-1 and the second solenoid valve CV-2 decreases, the ratio of the flow rate of the second fuel to the flow rate of the first fuel increases.
- the control device 6 can maintain or change the ratio R21 of the flow rate of the second fuel to the flow rate of the first fuel by controlling the first solenoid valve CV-1 and the second solenoid valve CV-2.
- V1 Flow rate of the first fuel
- V2 Flow rate of the second fuel.
- the proportion of the second fuel that receives only cooling increases. That is, the flow rate of the fuel (first fuel + second fuel) passing through the heat exchangers 51 and 52 is increased without increasing the flow rate of the fuel (first fuel) heated by the engine 2. For this reason, it is not necessary to excessively reduce the temperature of the refrigerant for cooling the fuel, and the fuel supply system according to the present embodiment can efficiently utilize the output of the chiller 5 to the maximum extent.
- the fuel supply system according to the present embodiment can efficiently reduce the temperature of the fuel, and thus can prevent cavitation.
- the fuel supply system according to the present embodiment cools the two heat exchangers 51 and 52 by the same chiller 5.
- a chiller may be provided for each heat exchanger.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
1a 分岐部
1b 合流部
2 エンジン
3 燃料タンク
4 高圧ポンプ(フィードポンプ)
5 チラー
6 制御装置
10 供給ライン
11 第1サブ供給ライン
12 第2サブ供給ライン
13 第3サブ供給ライン
14 第4サブ供給ライン
20 リターンライン
21 第1サブリターンライン
22 第2サブリターンライン
23 第3サブリターンライン
24 第4サブリターンライン
30 バイパスライン
31 第1サブバイパスライン
32 第2サブバイパスライン
41 第1圧力調整弁
42 第2圧力調整弁
43 逆止弁
51 第1熱交換器
52 第2熱交換器
CV-1 第1電磁弁
CV-2 第2電磁弁 DESCRIPTION OF
5
Claims (5)
- 燃料タンクからDMEエンジンにDME燃料を供給する供給ラインと、
前記DME燃料を前記供給ラインに沿って送り出すフィードポンプと、
前記DMEエンジンから前記燃料タンクに前記DME燃料を戻すリターンラインと、
前記供給ライン上に配置される、第1チラーの第1熱交換器と、
前記リターンライン上に配置される、第2チラーの第2熱交換器と、
前記供給ラインの前記第1熱交換器の下流側と、前記リターンラインの前記第2熱交換器の上流側とを連通接続する、バイパスラインと、
を備えている、DME燃料供給システム。 A supply line for supplying DME fuel from the fuel tank to the DME engine;
A feed pump for delivering the DME fuel along the supply line;
A return line for returning the DME fuel from the DME engine to the fuel tank;
A first heat exchanger of a first chiller disposed on the supply line;
A second heat exchanger of a second chiller disposed on the return line;
A bypass line connecting the downstream side of the first heat exchanger of the supply line and the upstream side of the second heat exchanger of the return line;
A DME fuel supply system. - 前記供給ラインから前記バイパスラインが分岐する分岐部の下流側において、前記供給ライン上に配置される第1電磁弁と、
前記リターンラインに前記バイパスラインが合流する合流部の上流側において、前記リターンライン上に配置される第2電磁弁と、
を備えている、
請求項1に記載のDME燃料供給システム。 A first solenoid valve disposed on the supply line on a downstream side of a branching portion where the bypass line branches from the supply line;
A second solenoid valve disposed on the return line on the upstream side of the merge portion where the bypass line merges with the return line;
With
The DME fuel supply system according to claim 1. - 第1チラー及び第2チラーが同一のチラーであり、
前記同一のチラーが、前記第1熱交換器及び前記第2熱交換器の双方に、冷却用の冷媒を供給する、
請求項1又は2に記載のDME燃料供給システム。 The first chiller and the second chiller are the same chiller,
The same chiller supplies a cooling refrigerant to both the first heat exchanger and the second heat exchanger.
The DME fuel supply system according to claim 1 or 2. - 燃料回路を通じて燃料タンクとDMEエンジンとを循環するDME燃料の冷却方法であって、
前記燃料タンクから送り出された前記DME燃料を冷却する、第1冷却工程と、
前記第1冷却工程の後に、前記DME燃料を、前記DMEエンジンを経由させる第1燃料と、前記DMEエンジンを経由させない第2燃料とに分配する、分配工程と、
前記DMEエンジンを経由した前記第1燃料と、前記第2燃料とを合流させる、合流工程と、
前記合流工程において合流したDME燃料を冷却する、第2冷却工程と、
を備えている、
DME燃料の冷却方法。 A method for cooling DME fuel that circulates between a fuel tank and a DME engine through a fuel circuit,
A first cooling step of cooling the DME fuel delivered from the fuel tank;
A distribution step of distributing, after the first cooling step, the DME fuel into a first fuel passing through the DME engine and a second fuel not passing through the DME engine;
A merging step of merging the first fuel and the second fuel via the DME engine;
A second cooling step for cooling the DME fuel merged in the merging step;
With
DME fuel cooling method. - 前記分配工程は、前記第1燃料の流量に対する前記第2燃料の流量の比を、維持又は変更する、
請求項4に記載のDME燃料の冷却方法。 The distributing step maintains or changes a ratio of the flow rate of the second fuel to the flow rate of the first fuel;
The method for cooling DME fuel according to claim 4.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020117030968A KR101273675B1 (en) | 2009-07-16 | 2010-07-15 | Dme fuel supply system and method for cooling dme fuel |
CN201080032191.XA CN102472202B (en) | 2009-07-16 | 2010-07-15 | DME fuel supply system and method for cooling DME fuel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009167931A JP5501682B2 (en) | 2009-07-16 | 2009-07-16 | DME fuel supply system and DME fuel cooling method |
JP2009-167931 | 2009-07-16 |
Publications (1)
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WO2011007826A1 true WO2011007826A1 (en) | 2011-01-20 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2010/061964 WO2011007826A1 (en) | 2009-07-16 | 2010-07-15 | Dme fuel supply system and method for cooling dme fuel |
Country Status (4)
Country | Link |
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JP (1) | JP5501682B2 (en) |
KR (1) | KR101273675B1 (en) |
CN (1) | CN102472202B (en) |
WO (1) | WO2011007826A1 (en) |
Families Citing this family (4)
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KR101371485B1 (en) * | 2012-12-07 | 2014-03-10 | 현대자동차주식회사 | Return fuel cooling system for lpi vehicle |
DE102012025021A1 (en) * | 2012-12-20 | 2014-06-26 | Man Diesel & Turbo Se | Fuel system plant for marine diesel combustion engine of ship, has control valve controlled based on measuring signal such that constant amount of fuel is conveyed into mixing tank irrespective of actual fuel consumption of engine |
KR101361347B1 (en) * | 2012-12-28 | 2014-02-10 | 현대자동차주식회사 | Common rail system for dme fuel |
JP6982439B2 (en) * | 2017-09-08 | 2021-12-17 | 川崎重工業株式会社 | Ship |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002276473A (en) * | 2001-03-22 | 2002-09-25 | Isuzu Motors Ltd | Fuel supply system for dimethyl ether engine |
JP2004044574A (en) * | 2002-05-16 | 2004-02-12 | Bosch Automotive Systems Corp | Dme fuel supply device of diesel engine |
JP2005139910A (en) * | 2003-11-04 | 2005-06-02 | Hino Motors Ltd | Fuel supply device of liquefied gas engine |
JP2006250136A (en) * | 2005-03-14 | 2006-09-21 | Komotetsuku:Kk | Fuel supplying device for cylinder fuel injection engine |
JP2007177697A (en) * | 2005-12-28 | 2007-07-12 | Nissan Diesel Motor Co Ltd | Fuel device of liquefied gas engine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7216634B2 (en) * | 2002-07-09 | 2007-05-15 | Bosch Automotive Systems Corporation | Diesel engine DME fuel supply device |
-
2009
- 2009-07-16 JP JP2009167931A patent/JP5501682B2/en not_active Expired - Fee Related
-
2010
- 2010-07-15 CN CN201080032191.XA patent/CN102472202B/en active Active
- 2010-07-15 KR KR1020117030968A patent/KR101273675B1/en active IP Right Grant
- 2010-07-15 WO PCT/JP2010/061964 patent/WO2011007826A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002276473A (en) * | 2001-03-22 | 2002-09-25 | Isuzu Motors Ltd | Fuel supply system for dimethyl ether engine |
JP2004044574A (en) * | 2002-05-16 | 2004-02-12 | Bosch Automotive Systems Corp | Dme fuel supply device of diesel engine |
JP2005139910A (en) * | 2003-11-04 | 2005-06-02 | Hino Motors Ltd | Fuel supply device of liquefied gas engine |
JP2006250136A (en) * | 2005-03-14 | 2006-09-21 | Komotetsuku:Kk | Fuel supplying device for cylinder fuel injection engine |
JP2007177697A (en) * | 2005-12-28 | 2007-07-12 | Nissan Diesel Motor Co Ltd | Fuel device of liquefied gas engine |
Also Published As
Publication number | Publication date |
---|---|
JP5501682B2 (en) | 2014-05-28 |
JP2011021556A (en) | 2011-02-03 |
CN102472202A (en) | 2012-05-23 |
CN102472202B (en) | 2014-10-29 |
KR101273675B1 (en) | 2013-06-12 |
KR20120026566A (en) | 2012-03-19 |
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