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    • 1. 发明授权
    • Diesel engine DME fuel supply device
    • 柴油发动机DME燃油供应装置
    • US07216634B2
    • 2007-05-15
    • US10520829
    • 2003-07-09
    • Yukihiro HayasakaShinya NozakiToshifumi NodaDaijo UshiyamaHiroshi Oikawa
    • Yukihiro HayasakaShinya NozakiToshifumi NodaDaijo UshiyamaHiroshi Oikawa
    • F02M37/00
    • F02D19/027F02M21/0212F02M21/0236F02M21/0245F02M21/0275F02M59/102F02M59/28F02M59/442F02M63/00F02M63/0001F02M63/02Y02T10/32
    • A bypass controller (30) controls ON/OFF of a three-way electromagnetic valve (62) according to a detection value of a cam chamber sensor (12a). When the cam chamber sensor (12a) detects a viscosity of lubricant exceeding a predetermined allowable value, the three-way electromagnetic valve (62) is controlled to turn ON so that the output side of an oil separator (13) communicates with a bypass route (61). The pressure in the cam chamber (12) is reduced to or below the atmospheric pressure by suction of a compressor (16) with a check valve (14) regulating the pressure in the cam chamber (12) to the atmospheric pressure or above in the bypassed state. When the detection value of the viscosity of the lubricant output by the cam chamber sensor (12a) has become the predetermined allowable value or below, the three-way electromagnetic valve (62) is controlled to turn OFF so that the output side of the oil separator (13) communicates with the check valve (14) and the bypass route (61) is cut off.
    • 旁路控制器(30)根据凸轮室传感器(12a)的检测值来控制三通电磁阀(62)的ON / OFF。 当凸轮室传感器(12a)检测到润滑剂的粘度超过预定的允许值时,三通电磁阀(62)被控制为接通,使得油分离器(13)的输出侧与旁路 路线(61)。 通过用限制阀(14)的止回阀(14)抽吸压缩机(16)将凸轮室(12)中的压力降低到或低于大气压力,该止回阀(14)将凸轮室(12)中的压力调节到大气压 旁路状态 当由凸轮室传感器(12a)输出的润滑剂的粘度的检测值已经变为预定的允许值或以下时,三通电磁阀(62)被控制为关闭,使得输出侧 油分离器(13)与止回阀(14)连通,旁路路径(61)被切断。
    • 4. 发明申请
    • DME Fuel Supply Device for Diesel Engine
    • DME柴油发动机燃料供应装置
    • US20070084447A1
    • 2007-04-19
    • US11612748
    • 2006-12-19
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • F02M37/20
    • F02M37/0035F02D33/006F02M21/0212F02M21/0245F02M37/0017F02M37/0052F02M37/0064F02M37/0088F02M53/00F02M55/00F02M59/26F02M59/265F02M59/44F02M59/485Y02T10/32
    • In the DME fuel supply device for a diesel engine, the time necessary to retrieve DME fuel remaining in the injection system after stopping the diesel engine into the fuel tank can be reduced. In a non-injection state, a three-way valve (71) is controlled to be OFF to form a communication passage in the direction indicated by the arrow B and a two-way valve (72) is controlled to be ON. DME fuel delivered from a feed pump (5) is delivered to an aspirator (7), passed from an inlet (7a) to the outlet (7b) thereof and returned to a fuel tank (4). That is, the DME fuel circulates via the aspirator. A vapor-phase pressure delivery pipe switching solenoid valve (75) is controlled to be ON and opened so that flow can pass through a vapor-phase pressure delivery pipe (73) connecting the vapor-phase (4a) in the fuel tank (4) and the inlet of the fuel gallery (11). DME fuel in a liquid state remaining in the fuel gallery (11), an overflow fuel pipes (8) and (9) is delivered under pressure to a suction port (7c) by the high pressure of the vapor-phase (4a).
    • 在用于柴油发动机的DME燃料供应装置中,可以减少在将柴油发动机停止进入燃料箱之后,在喷射系统中回收DME燃料所需的时间。 在非喷射状态下,三通阀(71)被控制为关闭,以沿箭头B所示的方向形成连通通道,并且将二通阀(72)控制为接通。 从进料泵(5)输送的DME燃料被输送到抽吸器(7),从吸入口(7a)通过其出口(7b)并返回到燃料箱(4)。 也就是说,DME燃料通过吸气器循环。 气相压力输送管切换电磁阀(75)被控制为接通和打开,使得流动可以通过连接燃料箱中的气相(4a)的气相压力输送管(73) 4)和燃料管道(11)的入口。 残留在燃料管道(11)中的处于液体状态的DME燃料,溢流燃料管道(8)和(9)通过气相的高压(4a)在压力下输送到吸入口(7c) )。
    • 7. 发明申请
    • Liquefied Gas Fuel Supply Device of Diesel Engine
    • 柴油发动机液化气供气装置
    • US20080271707A1
    • 2008-11-06
    • US11571531
    • 2005-07-05
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • F02M59/00
    • F02M59/44F02D19/022F02D19/027F02D33/006F02M21/0212F02M21/0224F02M21/0245Y02T10/32
    • In a diesel engine system of a liquefied gas fuel, the present invention aims at the prevention of storing of the liquefied gas fuel in a cam chamber even when a diesel engine repeats stopping and operation thereof without returning the liquefied gas fuel in a fuel gallery of a fuel pressurizing device such as a supply pump or an injection pump to a fuel tank. An electrically-operated compressor 16e is subjected to an ON/OFF control by a cam chamber pressure regulating part 20. In the inside of a cam chamber 12, a cam chamber pressure sensor 121 which detects a pressure in the inside of the cam chamber 12 is arranged. A cam chamber pressure regulating part 20 performs an OFF control of the electrically-operated compressor 16e when a detected pressure of the cam chamber pressure sensor 121 is a predetermined value or less, and performs an ON control of the electrically-operated compressor 16e so as to reduce the pressure in the inside of the cam chamber 12 to the predetermined pressure or less at a point of time that the detected pressure of the cam chamber pressure sensor 121 exceeds the predetermined pressure thus reducing the pressure in the inside of the cam chamber 12 by suction.
    • 在液化气燃料的柴油发动机系统中,本发明的目的在于防止液化气燃料储存在凸轮室中,即使柴油机重复停止和操作,也不将液化气燃料返回到燃料库 燃料加压装置,例如供给泵或向燃料箱的喷射泵。 电动压缩机16e通过凸轮室压力调节部20进行ON / OFF控制。在凸轮室12的内部,检测凸轮室内部的压力的凸轮室压力传感器121 12。 当凸轮室压力传感器121的检测压力为预定值以下时,凸轮室压力调节部件20执行电动压缩机16e的OFF控制,并对电动压缩机16e进行ON控制 以便在凸轮室压力传感器121的检测压力超过预定压力的时间点将凸轮室12内部的压力减小到预定压力或更小,从而减小凸轮内部的压力 抽吸室12。
    • 8. 发明授权
    • DME fuel supply device for diesel engine
    • DME柴油发动机燃料供应装置
    • US07318423B2
    • 2008-01-15
    • US10506701
    • 2003-03-05
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • F02M37/04
    • F02M37/0035F02D33/006F02M21/0212F02M21/0245F02M37/0017F02M37/0052F02M37/0064F02M37/0088F02M53/00F02M55/00F02M59/26F02M59/265F02M59/44F02M59/485Y02T10/32
    • In the DME fuel supply device for a diesel engine, the time necessary to retrieve DME fuel remaining in the injection system after stopping the diesel engine into the fuel tank can be reduced. In a non-injection state, a three-way valve (71) is controlled to be OFF to form a communication passage in the direction indicated by the arrow B and a two-way valve (72) is controlled to be ON. DME fuel delivered from a feed pump (5) is delivered to an aspirator (7), passed from an inlet (7a) to the outlet (7b) thereof and returned to a fuel tank (4). That is, the DME fuel circulates via the aspirator. A vapor-phase pressure delivery pipe switching solenoid valve (75) is controlled to be ON and opened so that flow can pass through a vapor-phase pressure delivery pipe (73) connecting the vapor-phase (4a) in the fuel tank (4) and the inlet of the fuel gallery (11). DME fuel in a liquid state remaining in the fuel gallery (11), an overflow fuel pipes (8) and (9) is delivered under pressure to a suction port (7c) by the high pressure of the vapor-phase (4a).
    • 在用于柴油发动机的DME燃料供应装置中,可以减少在将柴油发动机停止进入燃料箱之后,在喷射系统中回收DME燃料所需的时间。 在非喷射状态下,三通阀(71)被控制为关闭,以沿箭头B所示的方向形成连通通道,并且将二通阀(72)控制为接通。 从进料泵(5)输送的DME燃料被输送到抽吸器(7),从吸入口(7a)通过其出口(7b)并返回到燃料箱(4)。 也就是说,DME燃料通过吸气器循环。 气相压力输送管切换电磁阀(75)被控制为接通和打开,使得流动可以通过连接燃料箱中的气相(4a)的气相压力输送管(73) 4)和燃料管道(11)的入口。 残留在燃料管道(11)中的处于液体状态的DME燃料,溢流燃料管道(8)和(9)通过气相的高压(4a)在压力下输送到吸入口(7c) )。
    • 9. 发明授权
    • DME fuel supply device for diesel engine
    • DME柴油发动机燃料供应装置
    • US07287517B2
    • 2007-10-30
    • US11612748
    • 2006-12-19
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • Shinya NozakiToshifumi NodaDaijo UshiyamaTeruaki IshikawaYukihiro Hayasaka
    • F02M37/04
    • F02M37/0035F02D33/006F02M21/0212F02M21/0245F02M37/0017F02M37/0052F02M37/0064F02M37/0088F02M53/00F02M55/00F02M59/26F02M59/265F02M59/44F02M59/485Y02T10/32
    • In the DME fuel supply device for a diesel engine, the time necessary to retrieve DME fuel remaining in the injection system after stopping the diesel engine into the fuel tank can be reduced. In a non-injection state, a three-way valve (71) is controlled to be OFF to form a communication passage in the direction indicated by the arrow B and a two-way valve (72) is controlled to be ON. DME fuel delivered from a feed pump (5) is delivered to an aspirator (7), passed from an inlet (7a) to the outlet (7b) thereof and returned to a fuel tank (4). That is, the DME fuel circulates via the aspirator. A vapor-phase pressure delivery pipe switching solenoid valve (75) is controlled to be ON and opened so that flow can pass through a vapor-phase pressure delivery pipe (73) connecting the vapor-phase (4a) in the fuel tank (4) and the inlet of the fuel gallery (11). DME fuel in a liquid state remaining in the fuel gallery (11), an overflow fuel pipes (8) and (9) is delivered under pressure to a suction port (7c) by the high pressure of the vapor-phase (4a).
    • 在用于柴油发动机的DME燃料供应装置中,可以减少在将柴油发动机停止进入燃料箱之后,在喷射系统中回收DME燃料所需的时间。 在非喷射状态下,三通阀(71)被控制为关闭,以沿箭头B所示的方向形成连通通道,并且将二通阀(72)控制为接通。 从进料泵(5)输送的DME燃料被输送到抽吸器(7),从吸入口(7a)通过其出口(7b)并返回到燃料箱(4)。 也就是说,DME燃料通过吸气器循环。 气相压力输送管切换电磁阀(75)被控制为接通和打开,使得流动可以通过连接燃料箱中的气相(4a)的气相压力输送管(73) 4)和燃料管道(11)的入口。 残留在燃料管道(11)中的处于液体状态的DME燃料,溢流燃料管道(8)和(9)通过气相的高压(4a)在压力下输送到吸入口(7c) )。