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    • 6. 发明授权
    • Fluidized bed vapor compression drying apparatus and method
    • 流化床蒸汽压缩干燥装置和方法
    • US3654705A
    • 1972-04-11
    • US3654705D
    • 1971-01-11
    • COMBUSTION POWER
    • SMITH RICHARD DFURLONG DALE A
    • B01J8/18B01J8/24F26B23/00F26B3/08
    • B01J8/1836B01J8/24F26B23/004Y02B30/52Y02P70/405Y10S159/03
    • A feed stream, which is to be dried, is introduced into a fluidized bed of solid particles. A plurality of conduits are immersed in the bed for channeling a heating fluid through the bed to supply heat for vaporizing volatiles contained in the feed stream. Solid particulates and volatiles produced within the hot bed are removed from the bed. Volatiles are separated from the solid particulates entrained therein whereupon dried feed solids are recovered. The separated volatiles are preferably split into a first and a second portion. The first portion is recycled to the bed to serve as the fluidizing gas. The second portion is compressed to a pressure at which its saturation temperature exceeds the boiling temperature of the feed stream at the conditions existing in the bed. The compressed second portion is then cooled to about its saturation temperature whereupon it is re-cycled through the bed heating conduits to serve as the heating fluid. The re-cycled compressed volatiles condense as they pass through these conduits to supply heat for vaporizing the volatiles contained in the feed stream.
    • 待干燥的进料流被引入到固体颗粒的流化床中。 将许多导管浸入床中,以将加热流体引导通过床,以供给用于蒸发进料流中所含的挥发物的热量。 在床内产生的固体颗粒物和挥发物从床上除去。 将挥发物与夹带在其中的固体颗粒分离,然后回收干燥的进料固体。 分离的挥发物优选分成第一和第二部分。 第一部分被再循环到床中以用作流化气体。 第二部分被压缩至在床中存在的条件下其饱和温度超过进料流的沸点温度的压力。 然后将压缩的第二部分冷却至其饱和温度,随后将其再循环通过床加热导管以用作加热流体。 重新循环的压缩挥发物在通过这些管道时冷凝以提供用于蒸发进料流中所含的挥发物的热量。
    • 10. 发明授权
    • Air pollution-free internal combustion engine and method for operating same
    • 无空气无污染内燃机及其运行方法
    • US3672341A
    • 1972-06-27
    • US3672341D
    • 1970-07-30
    • COMBUSTION POWER
    • SMITH RICHARD DFURLONG DALE A
    • F02B1/04F02B47/00F02M25/00F02D19/00F02B33/00F02C3/20
    • F02M25/00F02B1/04F02B47/00Y02T10/121Y10S123/12
    • An air pollution-free internal combustion engine and method for operating such engine are provided in which the engine has at least one cylinder, an exhaust port and exhaust valve, fuel, oxygen gas and water spray injectors, a piston in the cylinder, means for cyclically opening and closing the exhaust valve, a fuel storage and supply system for feeding hydrogen gas or a liquid hydrocarbon to the fuel injector, an oxygen storage and supply system for feeding substantially pure oxygen to the oxygen gas injector, means for igniting the injected mixture of fuel and oxygen, and a water recovery system for recovering water from the exhaust discharged from the cylinder and for recycling the recovered water to the water spray injector. In a typical engine cycle, the exhaust valve is closed prior to completion of the exhaust stroke to entrain some exhaust gas in the cylinder as a working fluid. Oxygen is then injected into the cylinder after the exhaust valve closes and before the piston reaches top dead center on the exhaust stroke, and while relatively low pressures exist in the cylinder. Fuel is next progressively injected under pressure into the oxygen contained in the cylinder so that that fuel burns progressively as it is injected to preclude knocking problems. After combustion is substantially completed, the exhaust valve opens just before the piston reaches bottom dead center on the power stroke whereupon water is injected into the cylinder to cool the cylinder walls, piston, dome, combustion chamber wall and exhaust gas. A portion of the exhaust gas is then discharged from the cylinder through the exhaust port on the exhaust stroke.