WO2011004740A1 - Dme燃料供給方法及びdme燃料供給システム - Google Patents
Dme燃料供給方法及びdme燃料供給システム Download PDFInfo
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- WO2011004740A1 WO2011004740A1 PCT/JP2010/061099 JP2010061099W WO2011004740A1 WO 2011004740 A1 WO2011004740 A1 WO 2011004740A1 JP 2010061099 W JP2010061099 W JP 2010061099W WO 2011004740 A1 WO2011004740 A1 WO 2011004740A1
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
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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
-
- 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
-
- 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
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
Definitions
- It relates to a method and a system for supplying DME to an engine fuel tank.
- a DME engine using DME as fuel is known.
- An example of a technique using a DME engine is disclosed in Patent Document 1.
- DME is manually supplied from the DME station to the fuel tank of the DME engine.
- the DME engine is used in, for example, a cogeneration system.
- a supply system that can supply DME to the fuel tank not automatically but automatically.
- a system that directly supplies DME to a fuel tank via a fuel supply line can be considered as a supply system.
- the DME cogeneration system can be operated continuously for 24 hours.
- FIG. 5 is a diagram showing an example of the temporal change of the tank internal pressure and the tank liquid level.
- the tank internal pressure refers to the pressure in the fuel tank of the DME engine.
- the liquid level in the tank indicates the height of the liquid level in the fuel tank, that is, the remaining amount of fuel in the tank.
- a drop in the liquid level in the tank is caused by consumption of DME in the DME engine.
- the increase in the liquid level in the tank is caused by manually replenishing the fuel tank with DME.
- the tank internal pressure is generated by the vaporization of DME in the fuel tank. When DME is consumed, the free space in the tank increases, so that the DME vapor expands and the pressure in the tank decreases.
- the pressure of the fuel supply line (supply pressure) needs to be larger than the pressure in the tank.
- the supply pressure becomes equal to the pressure in the tank, the DME cannot flow and the DME cannot be supplied.
- the tank internal pressure increases.
- the pressure in the tank can be reduced.
- the fuel tank is always open, a large amount of DME is released into the atmosphere.
- the operator needs to monitor the reduction of the fuel in the fuel tank on a 24-hour basis, and the work efficiency may be deteriorated.
- the present invention provides a supply method and a supply system that can automatically supply DME fuel to a fuel tank of a DME engine and that does not hinder the supply of DME due to a pressure increase in the fuel tank.
- a first aspect of the present invention is a DME fuel supply method for supplying a supply target amount of DME into a fuel tank of an engine through a fuel supply line, while the DME is being supplied into the fuel tank.
- a purge step of temporarily opening the purge valve for a predetermined time when it is determined in the determination step that the pressure difference is equal to or less than the set value, and the release step is executed. If it does, the DME fuel supply method with which the said determination process is performed again after completion
- the DME fuel supply method according to the first aspect of the present invention can preferably employ the configuration (a).
- the supply target amount is obtained by subtracting the remaining amount of DME in the fuel tank from the maximum amount of the fuel tank, and the DME fuel supply method is performed prior to opening of the fuel supply line.
- the supply target amount is calculated by detecting the remaining amount.
- a second aspect of the present invention is a DME fuel supply method for supplying a target amount of DME into a fuel tank of an engine through a fuel supply line, while the DME is being supplied into the fuel tank.
- a DME fuel supply method is provided.
- a third aspect of the present invention is a DME fuel supply system for supplying a target supply amount of DME into a fuel tank of an engine through a fuel supply line, the fuel electromagnetic valve for opening and closing the fuel supply line, and the fuel A purge valve that opens and closes the tank, a tank pressure sensor that detects the pressure in the fuel tank, a supply pressure sensor that detects the pressure in the fuel supply line, and information detected by the tank pressure sensor and the supply pressure sensor.
- the control device opens and closes the solenoid valve and the purge valve.
- a monitoring process for monitoring a pressure difference obtained by reducing the pressure, and determining whether the pressure difference is equal to or less than a predetermined set value.
- a purge process that temporarily opens the purge valve for a predetermined time when it is determined in the determination step that the pressure difference is equal to or less than the set value.
- the DME fuel supply system is provided in which the determination process is executed again after the opening process is completed.
- a fourth aspect of the present invention is a DME fuel supply system for supplying a target amount of DME into a fuel tank of an engine through a fuel supply line, the fuel electromagnetic valve for opening and closing the fuel supply line, and the fuel
- a purge valve that opens and closes the tank, a tank pressure sensor that detects the pressure in the fuel tank, a supply pressure sensor that detects the pressure in the fuel supply line, and information detected by the tank pressure sensor and the supply pressure sensor.
- the control device opens and closes the solenoid valve and the purge valve.
- a monitoring process for monitoring a pressure difference obtained by reducing the pressure, and determining whether the pressure difference is equal to or less than a predetermined set value.
- a determination process an opening process for opening the purge valve of the fuel tank when the pressure difference is less than or equal to the set value; and a closing process for closing the purge valve when the pressure difference is greater than the set value;
- the DME fuel can be automatically supplied to the fuel tank of the engine, and the supply of DME is not hindered by the pressure increase in the fuel tank.
- DME engine system shows a DME engine system and a DME supply system. It is a flowchart of DME fuel supply control. It is a figure which shows an example of the time change of a tank internal pressure, supply pressure, and a liquid level in a tank. It is a flowchart of DME fuel supply control (another embodiment). It is a figure which shows an example of the time change of the pressure in a tank and the liquid level in a tank (prior art).
- FIG. 1 is a schematic diagram showing a DME engine system 1 and a DME supply system 100.
- the DME supply system 100 is a system that supplies DME and a lubricity improver from the DME supply source 101 to the fuel tank 3 of the engine 2.
- the fuel tank 3 stores DME containing a lubricity improver.
- the DME engine system 1 is a device that drives the engine 2 with DME containing a lubricity improver.
- the DME supply source 101 is a DME pipeline system or a DME tank.
- DME containing a lubrication improver and DME containing no lubrication improver are not distinguished, and both DMEs are simply referred to as “DME”.
- the DME engine system 1 includes an engine 2, a fuel tank 3, a high-pressure pump 4, and an engine control device 5.
- the DME engine system 1 includes a first fuel line 11, a second fuel line 12, a third fuel line 13, and a fourth fuel line 14 as fuel lines.
- the DME engine system 1 includes a first purge line 21, a second purge line 22, and a third purge line 23 as lines for purging DME vapor.
- the DME engine system 1 includes a pressure regulating valve 30, a second cutoff valve 32, a third cutoff valve 33, and a check valve 34 as valves.
- the first fuel line 11 connects the fuel tank 3 and the high-pressure pump 4.
- the second fuel line 12 connects the high pressure pump 4 and the engine 2.
- the third fuel line 13 and the fourth fuel line 14 connect the engine 2 and the fuel tank 3 via the pressure regulating valve 30.
- the pressure adjustment valve 30 is provided between the third fuel line 13 and the fourth fuel line 14.
- the check valve 34 is provided between the fuel tank 3 and the fourth fuel line 14.
- the second shutoff valve 32 is provided between the second fuel line 12 and the second purge line 22.
- the third shut-off valve 33 is provided between the third fuel line 13 and the third purge line 23.
- the third shut-off valve 33 is opened, the DME vapor in the third fuel line 13 is released to the atmosphere via the third purge line 23.
- the engine control device 5 controls each part of the DME engine system 1.
- the engine control device 5 operates the high-pressure pump 4 when operating the engine 2.
- the DME circulates through the fuel tank 3 and the engine 2 via the lines 11 to 14 by the operation of the high-pressure pump 4.
- the DME supply system 100 includes an improver tank 102, an improver pump 103, and a supply control device 105.
- the DME supply system 100 includes a fuel supply line 111, a first improver supply line 121, and a second improver supply line 122 as supply lines.
- the DME supply system 100 includes an inlet cutoff valve SV-1, a DME electromagnetic valve CV-3, an improver electromagnetic valve CV-4, and a purge electromagnetic valve RV-2 as valves.
- the DME supply system 100 includes a flow sensor 151, a supply pressure sensor PS-1, a temperature sensor 152, a tank pressure sensor PS-2, and a capacity level sensor 51 as sensors.
- the fuel supply line 111 connects the DME supply source 101 and the fuel tank 3. DME is supplied from the DME supply source 101 toward the fuel tank 3. On the fuel supply line 111, along the DME flow direction, an inlet shutoff valve SV-1, a flow rate sensor 151, a merging portion 131, a supply pressure sensor PS-1, a temperature sensor 152, and a DME solenoid valve CV-3 are provided. Have been placed.
- the first improver supply line 121 connects the improver tank 102 and the improver pump 103.
- the second improver supply line 122 connects the improver pump 103 and the fuel supply line 111.
- the junction 131 is a connection between the second improver supply line 122 and the fuel supply line 111.
- the lubrication improver is supplied from the improver tank 102 to the junction 131 on the fuel supply line 111 via the improver pump 103.
- An improver solenoid valve CV-4 is disposed on the second improver supply line 122.
- the improver pump 103 is a metering pump in this embodiment.
- the inlet shutoff valve SV-1 can open and close the fuel supply line 111 on the upstream side of the junction 131.
- the DME solenoid valve CV-3 can open and close the fuel supply line 111 on the downstream side of the merging portion 131.
- the improver electromagnetic valve CV-4 can open and close the second improver supply line 122.
- the supply pressure sensor PS-1 can detect the pressure in the fuel supply line 111 on the downstream side of the junction 131.
- the flow sensor 151 can detect the flow rate in the fuel supply line 111. For this reason, the flow sensor 151 can detect whether the flow is generated in the fuel supply line 111 or the flow is stopped.
- the temperature sensor 152 can detect the temperature in the fuel supply line 111 on the downstream side of the junction 131.
- the temperature sensor 152 is a thermocouple.
- the purge solenoid valve RV-2 is provided on the first purge line 21.
- the purge solenoid valve RV-2 is opened, the DME vapor in the fuel tank 3 is released to the atmosphere via the first purge line 21.
- the tank internal pressure sensor PS-2 detects the pressure of the first fuel line 11. Here, the pressure in the first fuel line 11 is equal to the pressure in the fuel tank 3.
- the capacity level sensor 51 detects the amount of DME stored in the fuel tank 3.
- the supply control device 105 controls each part of the DME supply system 100. Specifically, the supply control device 105 controls the opening and closing of the purge solenoid valve RV-2, the inlet shutoff valve SV-1, the DME solenoid valve CV-3, and the improver solenoid valve CV-4. The supply control device 105 controls the driving of the improver pump 103. The supply control device 105 can grasp information detected by the supply pressure sensor PS-1, the tank pressure sensor PS-2, the capacity level sensor 51, and the temperature sensor 152.
- DME that does not contain a lubricity improver is supplied from the DME supply source 101 to the fuel supply line 111.
- a lubricity improver is charged into the DME. That is, the DME and the lubricity improver are mixed at the junction 131.
- DME containing the lubricity improver is supplied to the fuel tank 3.
- FIG. 2 is a flowchart of DME fuel supply control.
- the supply control device 105 can execute DME fuel supply control.
- DME fuel supply control is sequence control. In the DME fuel supply control, processing of each step described later is sequentially executed.
- the inlet shutoff valve SV-1 is open, and the DME solenoid valve CV-3 and the improver solenoid valve CV-4 are closed.
- the inlet shut-off valve SV-1 is normally open except during maintenance.
- the DME supply system 100 includes a start switch for starting the system.
- step S ⁇ b> 1 when the supply control device 105 detects that the start switch has been pressed, the supply control device 105 starts DME fuel supply control.
- step S2 the supply control device 105 calculates a DME supply target amount.
- the DME supply target amount means an amount by which the DME supply system 100 supplies DME to the fuel tank 3 in the current DME supply operation.
- the free capacity in the fuel tank 3 is set to the target supply amount of DME.
- DME supply target amount maximum tank amount-remaining tank amount (1)
- the tank maximum amount is the maximum capacity of the fuel tank 3 and is specified.
- the tank remaining amount is the amount of DME remaining in the fuel tank 3.
- the supply control device 105 can specify the tank remaining amount based on the detection information from the capacity level sensor 51. For this reason, the supply control apparatus 105 can calculate the DME supply target amount based on the equation (1).
- step S3 the supply control device 105 opens the DME solenoid valve CV-3. As a result, DME flows into the fuel tank 3.
- the DME supply system 100 can supply not only the DME but also the lubricity improver to the fuel supply line 111.
- the supply control device 105 opens the enhancer solenoid valve CV-4 and drives the enhancer pump 103.
- the DME and the lubricant improver are mixed in the fuel supply line 111.
- the supply control device 105 monitors the pressure difference between the fuel supply line 111 and the fuel tank 3, and controls the opening and closing of the purge solenoid valve RV-2 based on the pressure difference.
- the pressure difference is a value obtained by subtracting the tank internal pressure from the pressure (supply pressure) of the fuel supply line 111.
- the supply pressure is, for example, 1.5 MPa. If the tank internal pressure becomes equal to the supply pressure as a result of the increase in the tank internal pressure, the supply of DME is inhibited. Therefore, a predetermined set value is provided as an index for determining the suitability of the pressure difference.
- the set value is a value of 0 MPa or more, for example, 0.2 MPa. As long as the pressure difference exceeds the set value, there is no problem in the supply of DME.
- step S4 the supply control device 105 determines whether or not the pressure difference is larger than a predetermined set value. When the pressure difference is larger than the set value, the process proceeds to step S8. When the pressure difference is less than or equal to the set value, the process proceeds to step S5.
- step S5 the supply control device 105 opens the purge solenoid valve RV-2. As a result, the DME vapor in the fuel tank 3 is released into the atmosphere via the first purge line 21.
- step S6 the supply control device 105 continues the opening state of the purge solenoid valve RV-2 for a predetermined opening time.
- the opening time is 15 seconds.
- the size of the opening time is set so that the tank pressure approaches the atmospheric pressure as much as possible when the opening time has elapsed. For this reason, the opening time varies depending on the capacity of the fuel tank 3 and the inner diameter of the first purge line 21.
- the supply control device 105 closes the purge solenoid valve RV-2.
- step S8 the supply control device 105 determines whether or not a supply target amount of mixed DME is filled in the fuel tank 3.
- the supply control device 105 can grasp that the supply target amount is filled based on the detection information of the capacity level sensor 51. If the supply target amount is filled, the loop processing from step S4 to S8 ends, and the process proceeds to step S9. If the supply target amount is not filled, the process returns to step S4, and the loop process from steps S4 to S8 is executed again.
- step S9 the supply control device 105 closes the DME solenoid valve CV-3. As a result, the supply of DME is stopped.
- the enhancer solenoid valve CV-4 is closed and the drive of the enhancer pump 103 is stopped. That is, the supply of the lubricity improver is completed before the supply of DME is completed.
- step S10 the supply control device 105 ends the DME fuel supply control.
- FIG. 3 is a diagram illustrating an example of a temporal change in the tank internal pressure, the supply pressure, and the liquid level in the tank.
- the liquid level in the tank indicates the height of the liquid level in the fuel tank 3, that is, the remaining amount of fuel in the tank.
- the liquid level in the tank is indicated by the ratio (%) of the remaining amount to the maximum capacity.
- the drop in the liquid level in the tank is caused by the consumption of DME in the DME engine 2.
- the rapid increase in the liquid level in the tank occurs when the DME supply system 100 replenishes the fuel tank 3 with DME.
- the supply pressure pulsates due to the influence of the feed pump in the DME supply source 101, but the average value of the supply pressure is kept almost constant.
- the pulsation of the tank internal pressure and the tank liquid level is also generated by the supply pressure pulsation. Therefore, the pulsation is not important in the change of the tank internal pressure and the tank liquid level, and the overall change is important.
- the DME fuel supply method and the DME supply system 100 according to this embodiment can automatically supply DME fuel to the fuel tank 3 of the DME engine 2, and the supply of DME is hindered by the pressure increase in the fuel tank 3. There is no.
- the DME supply system 100 includes not only a system related to the supply of DME but also a system related to the supply of the lubricity improver.
- the DME supply system for executing the DME fuel supply control only needs to include a system related to the supply of DME, and does not need to include a system related to the supply of the lubricity improver.
- FIG. 4 is a flowchart of DME fuel supply control in another embodiment.
- the supply control device 105 can execute the DME fuel supply control shown in FIG. 4 instead of the DME fuel supply control shown in FIG.
- Step S17 is a step of closing the purge solenoid valve RV-2, which is equivalent to step S7 in terms of content.
- the timing at which step S17 is executed is different from the timing at which step S7 is executed.
- Step S17 is executed when the pressure difference is larger than the set value in the determination of step S4.
- the supply control device 105 monitors the pressure difference while supplying DME into the fuel tank, and determines whether or not the pressure difference is larger than a set value in step S4. If the pressure difference is less than or equal to the set value, step S5 is executed. In step S5, the supply control device 105 opens the purge solenoid valve RV-2. On the other hand, when the pressure difference is larger than the set value, step S17 is executed. In step S17, the supply control device 105 closes the purge solenoid valve RV-2. When step S5 or S17 ends, the determination in step S8 is executed. If the supply target amount is not filled in step S8, the process returns to step S4, and the loop processes of steps S4, S5, S17, and S8 are executed again. As described above, in the flow of FIG. 4, the purge solenoid valve RV-2 is immediately opened or closed in accordance with the magnitude comparison between the pressure difference and the set value.
Abstract
Description
2 エンジン
3 燃料タンク
21 第1パージライン
51 容量レベルセンサ
100 DME供給システム
105 供給制御装置
111 燃料供給ライン
PS-1 供給圧力センサ
PS-2 タンク内圧力センサ
RV-2 パージ電磁弁
CV-3 DME電磁弁
Claims (5)
- エンジンの燃料タンク内に燃料供給ラインを通じて供給目標量のDMEを供給する、DME燃料供給方法であって、
前記DMEを前記燃料タンク内に供給している間、前記燃料供給ラインの圧力から前記燃料タンク内の圧力を減じることによって得られる圧力差を監視する、監視工程と、
前記圧力差が所定の設定値以下であるか否かを判定する、判定工程と、
前記判定工程において前記圧力差が前記設定値以下であることが判定される場合、前記パージバルブを所定時間の間、一時的に開放する、パージ工程と、を備えており、
前記開放工程が実行されると、前記判定工程が前記開放工程の終了後に再度実行される、
DME燃料供給方法。 - エンジンの燃料タンク内に燃料供給ラインを通じて供給目標量のDMEを供給する、DME燃料供給方法であって、
前記DMEを前記燃料タンク内に供給している間、前記燃料供給ラインの圧力から前記燃料タンク内の圧力を減じることによって得られる圧力差を監視する、監視工程と、
前記圧力差が所定の設定値以下であるか否かを判定する、判定工程と、
前記圧力差が前記設定値以下であるとき、前記燃料タンクのパージバルブを開放する開放工程と、
前記圧力差が前記設定値よりも大きいとき、前記パージバルブを閉鎖する閉鎖工程と、を備えている、
DME燃料供給方法。 - 前記供給目標量が、前記燃料タンクの最大量から前記燃料タンク内のDMEの残量を減じて得られるものであり、
前記燃料供給ラインの開放に先立って、前記残量を検出することによって前記供給目標量を算出する、
請求項1に記載のDME燃料供給方法。 - エンジンの燃料タンク内に燃料供給ラインを通じて供給目標量のDMEを供給する、DME燃料供給システムであって、
前記燃料供給ラインを開閉する燃料電磁弁と、
前記燃料タンクを開閉するパージバルブと、
前記燃料タンク内の圧力を検出するタンク内圧力センサと、
前記燃料供給ラインの圧力を検出する供給圧力センサと、
前記タンク内圧力センサ及び前記供給圧力センサによる検出情報に基づいて、前記電磁弁及び前記パージバルブを開閉する、制御装置と、
を備えており、
前記制御装置が、
前記燃料供給ラインを開放している間、前記燃料供給ラインの圧力から前記燃料タンク内の圧力を減じることによって得られる圧力差を監視する、監視処理と、
前記圧力差が所定の設定値以下であるか否かを判定する、判定処理と、
前記判定工程において前記圧力差が前記設定値以下であることが判定される場合、前記パージバルブを所定時間の間、一時的に開放する、パージ処理と、を実行し、
前記開放工程が実行されると、前記判定工程が前記開放工程の終了後に再度実行される、
DME燃料供給システム。 - エンジンの燃料タンク内に燃料供給ラインを通じて供給目標量のDMEを供給する、DME燃料供給システムであって、
前記燃料供給ラインを開閉する燃料電磁弁と、
前記燃料タンクを開閉するパージバルブと、
前記燃料タンク内の圧力を検出するタンク内圧力センサと、
前記燃料供給ラインの圧力を検出する供給圧力センサと、
前記タンク内圧力センサ及び前記供給圧力センサによる検出情報に基づいて、前記電磁弁及び前記パージバルブを開閉する、制御装置と、
を備えており、
前記制御装置が、
前記燃料供給ラインを開放している間、前記燃料供給ラインの圧力から前記燃料タンク内の圧力を減じることによって得られる圧力差を監視する、監視処理と、
前記圧力差が所定の設定値以下であるか否かを判定する、判定処理と、
前記圧力差が前記設定値以下であるとき、前記燃料タンクのパージバルブを開放する開放処理と、
前記圧力差が前記設定値よりも大きいとき、前記パージバルブを閉鎖する閉鎖処理と、を実行する、
DME燃料供給方法。
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KR1020117030871A KR101352747B1 (ko) | 2009-07-06 | 2010-06-30 | 디엠이 연료 공급방법 및 디엠이 연료 공급 시스템 |
CN201080031015.4A CN102498283B (zh) | 2009-07-06 | 2010-06-30 | Dme燃料供给方法及dme燃料供给系统 |
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JP2009159752A JP5259509B2 (ja) | 2009-07-06 | 2009-07-06 | Dme燃料供給方法及びdme燃料供給システム |
JP2009-159752 | 2009-07-06 |
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JP (1) | JP5259509B2 (ja) |
KR (1) | KR101352747B1 (ja) |
CN (1) | CN102498283B (ja) |
WO (1) | WO2011004740A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10036314B2 (en) | 2016-01-11 | 2018-07-31 | Caterpillar Inc. | Fuel system flush circuitry and method for operating the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003056409A (ja) * | 2001-08-10 | 2003-02-26 | Hino Motors Ltd | Dmeエンジンの燃料供給装置 |
JP2004245279A (ja) * | 2003-02-12 | 2004-09-02 | Yazaki Corp | 自動車用の液化ガス燃料供給方法、及びその装置 |
JP2005076548A (ja) * | 2003-09-01 | 2005-03-24 | Nissan Diesel Motor Co Ltd | エンジンの燃料供給装置 |
JP2007262903A (ja) * | 2006-03-27 | 2007-10-11 | Isuzu Motors Ltd | ジメチルエーテルエンジン搭載車両 |
Family Cites Families (3)
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JPH065240Y2 (ja) * | 1988-03-16 | 1994-02-09 | 株式会社ユニシアジェックス | 燃料タンクの内圧制御装置 |
JP2005262905A (ja) * | 2004-03-16 | 2005-09-29 | Toyota Motor Corp | 内燃機関の燃料貯留装置 |
CN101092917A (zh) * | 2007-07-21 | 2007-12-26 | 郑国璋 | 一种汽车燃料供给装置 |
-
2009
- 2009-07-06 JP JP2009159752A patent/JP5259509B2/ja not_active Expired - Fee Related
-
2010
- 2010-06-30 WO PCT/JP2010/061099 patent/WO2011004740A1/ja active Application Filing
- 2010-06-30 KR KR1020117030871A patent/KR101352747B1/ko active IP Right Grant
- 2010-06-30 CN CN201080031015.4A patent/CN102498283B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003056409A (ja) * | 2001-08-10 | 2003-02-26 | Hino Motors Ltd | Dmeエンジンの燃料供給装置 |
JP2004245279A (ja) * | 2003-02-12 | 2004-09-02 | Yazaki Corp | 自動車用の液化ガス燃料供給方法、及びその装置 |
JP2005076548A (ja) * | 2003-09-01 | 2005-03-24 | Nissan Diesel Motor Co Ltd | エンジンの燃料供給装置 |
JP2007262903A (ja) * | 2006-03-27 | 2007-10-11 | Isuzu Motors Ltd | ジメチルエーテルエンジン搭載車両 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10036314B2 (en) | 2016-01-11 | 2018-07-31 | Caterpillar Inc. | Fuel system flush circuitry and method for operating the same |
Also Published As
Publication number | Publication date |
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CN102498283B (zh) | 2014-03-12 |
JP2011012652A (ja) | 2011-01-20 |
JP5259509B2 (ja) | 2013-08-07 |
KR20120025550A (ko) | 2012-03-15 |
KR101352747B1 (ko) | 2014-01-16 |
CN102498283A (zh) | 2012-06-13 |
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