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    • 3. 发明申请
    • CONDENSING SYSTEM AND OPERATING METHOD
    • 冷凝系统和操作方法
    • WO1993004325A1
    • 1993-03-04
    • PCT/US1991005916
    • 1991-08-20
    • MINOVITCH, Michael, A.
    • F25B21/00
    • F25B25/00F01K19/02F01K25/10Y10S505/891
    • A cryogenic condensing system is provided wherein the working fluid is paramagnetic and entropy reduction is accomplished by means of a magnetic field. Condensation is obtained by isentropically expanding partially compressed vapor into a thermally insulated condensing chamber (14) with a sufficiently large expansion ratio to supersaturate the vapor, a portion of which condenses spontaneously. That portion of the vapor which does not condense is drawn out of the condensing chamber (14) and into the bore of a superconducting solenoid (18) by magnetic attractive forces thereby maintaining the vacuum environment inside the chamber (14). The noncondensed vapor is magnetized and magnetically compressed inside the solenoid (18) thereby reducing its entropy. Heat of magnetization is extracted by a nonmagnetic turbine (32) which converts the kinetic energy of the gas stream pulled into the solenoid (18) into mechanical work.
    • 提供了一种低温冷凝系统,其中工作流体是顺磁性的并且通过磁场来实现熵减少。 通过将部分压缩的蒸汽等温膨胀到具有足够大的膨胀比的绝热冷凝室(14)中以使蒸气过饱和,其中一部分自发冷凝而获得冷凝。 没有冷凝的蒸汽的那部分被冷凝室(14)引出并通过磁性吸引力进入超导螺线管(18)的孔中,从而保持室(14)内部的真空环境。 非冷凝蒸汽被磁化并在螺线管(18)内被磁力压缩,从而减少其熵。 通过将拉入螺线管(18)的气流的动能转换成机械作业的非磁性涡轮(32)来提取磁化热。
    • 6. 发明授权
    • Superconducting thermoelectric generator
    • 超导热电发电机
    • US5747418A
    • 1998-05-05
    • US732945
    • 1996-10-17
    • John D. MetzgerMohamed S. El-Genk
    • John D. MetzgerMohamed S. El-Genk
    • H01L35/22H01L39/06H01L35/04H01L35/14H01L39/22
    • H01L35/225Y10S505/701Y10S505/875Y10S505/876Y10S505/891
    • An apparatus and method for producing electricity from heat. The present invention is a thermoelectric generator that uses materials with substantially no electrical resistance, often called superconductors, to efficiently convert heat into electrical energy without resistive losses. Preferably, an array of superconducting elements is encased within a second material with a high thermal conductivity. The second material is preferably a semiconductor. Alternatively, the superconducting material can be doped on a base semiconducting material, or the superconducting material and the semiconducting material can exist as alternating, interleaved layers of waferlike materials. A temperature gradient imposed across the boundary of the two materials establishes an electrical potential related to the magnitude of the temperature gradient. The superconducting material carries the resulting electrical current at zero resistivity, thereby eliminating resistive losses. The elimination of resistive losses significantly increases the conversion efficiency of the thermoelectric device.
    • 一种用于从热发电的装置和方法。 本发明是一种热电发电机,其使用基本上没有电阻的材料,通常称为超导体,以有效地将热量转换成电能而没有电阻损耗。 优选地,超导元件的阵列被封装在具有高导热性的第二材料内。 第二材料优选为半导体。 或者,超导材料可以掺杂在基底半导体材料上,或者超导材料和半导体材料可以作为晶片状材料的交替交替层存在。 施加在两种材料的边界上的温度梯度建立了与温度梯度的幅度相关的电位。 超导材料承载所得的电阻为零电阻,从而消除电阻损耗。 消除电阻损耗显着提高了热电装置的转换效率。
    • 7. 发明授权
    • Bipolar pulse field for magnetic refrigeration
    • 用于磁性制冷的双极脉冲场
    • US5357756A
    • 1994-10-25
    • US125277
    • 1993-09-23
    • Martin S. Lubell
    • Martin S. Lubell
    • F25B21/00
    • F25B21/00F25B2321/0021Y02B30/66Y10S505/891
    • A magnetic refrigeration apparatus includes first and second steady state magnets, each having a field of substantially equal strength and opposite polarity, first and second bodies made of magnetocaloric material disposed respectively in the influence of the fields of the first and second steady state magnets, and a pulsed magnet, concentric with the first and second steady state magnets, and having a field which cycles between the fields of the first and second steady state magnets, thereby cyclically magnetizing and demagnetizing and thus heating and cooling the first and second bodies. Heat exchange apparatus of suitable design can be used to expose a working fluid to the first and second bodies of magnetocaloric material. A controller is provided to synchronize the flow of working fluid with the changing states of magnetization of the first and second bodies.
    • 一种磁性制冷装置包括第一和第二稳态磁体,每个具有基本上相同的强度和相反极性的磁场,第一和第二主体由分别设置在第一和第二稳态磁体的场的磁热材料构成,以及 脉冲磁体,与第一和第二稳态磁体同心,并且具有在第一和第二稳态磁体的磁场之间循环的磁场,从而循环地磁化和去磁,从而加热和冷却第一和第二主体。 适合设计的热交换装置可用于将工作流体暴露于磁热材料的第一和第二体。 提供控制器以使工作流体的流动与第一和第二主体的磁化的变化状态同步。