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    • 2. 发明授权
    • LNG delivery system
    • LNG输送系统
    • US5421162A
    • 1995-06-06
    • US200167
    • 1994-02-23
    • Keith GustafsonDuane Preston
    • Keith GustafsonDuane Preston
    • F17C9/02F25B19/00
    • F17C9/02F17C2205/0134F17C2205/0335F17C2221/033F17C2223/0161F17C2223/033F17C2225/0161F17C2227/0107F17C2227/0135F17C2227/0393F17C2250/0636F17C2265/032F17C2265/065F17C2265/066F17C2270/0168
    • Liquid natural gas is pumped into a main tank until the main tank is completely filled with liquid. Once filled, high pressure gas is pumped into the main tank. This high pressure gas forces the liquid from the main tank into an overflow tank until the liquid level in the main tank reaches a predetermined level. High pressure gas is then pumped through the main tank to the overflow tank until the LNG in the overflow tank is saturated at a pressure slightly higher than the pressure needed at the use device. Once the desired pressure is achieved the delivery of LNG to the delivery system is stopped. LNG is initially delivered from the overflow tank to the use device as a high pressure gas. Some of the high pressure gas being delivered from the overflow tank is diverted from the use device to saturate the LNG in the main tank at the desired pressure. The LNG will be delivered from the overflow tank is depleted and then the LNG will be delivered from the main tank which will have been saturated by the high pressure gas from the main tank.
    • 液体天然气被泵入主油箱,直到主油箱完全充满液体。 一旦充满,高压气体被泵入主油箱。 这种高压气体迫使液体从主油箱进入溢流槽,直到主油箱中的液面达到预定水平。 然后将高压气体通过主罐泵送到溢流槽,直到溢流罐中的LNG在稍高于使用装置所需压力的压力下饱和。 一旦达到所需的压力,就停止向输送系统输送LNG。 LNG最初从溢流罐输送到作为高压气体的使用装置。 从溢流罐输送的一些高压气体从使用装置转移到主罐中所需的压力下的LNG饱和。 液化天然气将从溢流槽输送用尽,然后LNG将从主油箱输送,主油箱将被主油箱的高压气体饱和。
    • 4. 发明授权
    • Natural gas fuel storage and supply system for vehicles
    • 汽车天然气燃料储存和供应系统
    • US06698211B2
    • 2004-03-02
    • US10162125
    • 2002-06-04
    • Keith Gustafson
    • Keith Gustafson
    • F17C902
    • F17C9/02F02D19/022F02M21/0212F02M21/0221F02M21/0245F02M21/0287F02M21/06F17C5/06F17C7/00F17C2221/033F17C2223/0161Y02T10/32
    • A natural gas fuel storage and supply system, particularly suited for use in vehicles powered by liquid natural gas (LNG), includes an insulated tank containing a supply of LNG with a headspace there above. A pump and a vaporizer are in circuit between the tank and the engine of the vehicle. When activated, the pump pressurizes LNG from the tank and directs it to the vaporizer where gaseous LNG is produced. The pressurized gaseous LNG is routed to the engine where it is consumed as fuel. An economizer circuit communicates with the headspace of the tank and includes a regulator, a control valve and a flow control device. The control valve opens when the vehicle engine is in operation and the regulator opens when the pressure in the tank exceeds a predetermined level so that LNG vapor from the tank headspace flows to the vehicle engine air inlet where it is consumed. The flow control device, which may be an orifice or a flow control valve, is set to prevent the LNG vapor and air mixture created at the air intake from being combustable in the vehicle engine.
    • 特别适合用于液化天然气(LNG)的车辆的天然气燃料储存和供应系统包括一个绝缘罐,其中包含一个上部顶部空间的LNG供应。 泵和蒸发器在油箱和车辆发动机之间的电路中。 当激活时,泵将来自罐的LNG加压并将其引导到蒸发器,其中产生气态LNG。 加压的气态LNG被引导到发动机,在那里作为燃料消耗。 节能器电路与罐的顶部空间通信,并且包括调节器,控制阀和流量控制装置。 当车辆发动机运行时,控制阀打开,并且当罐中的压力超过预定水平时调节器打开,使得来自罐顶部空间的LNG蒸汽流到被消耗的车辆发动机空气入口。 可以设置流量控制装置,其可以是孔口或流量控制阀,以防止在进气口处产生的LNG蒸汽和空气混合物在车辆发动机中可燃。