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    • 7. 发明公开
    • 냉동장치
    • 制冷系统
    • KR1020060131996A
    • 2006-12-20
    • KR1020067021492
    • 2005-03-09
    • 다이킨 고교 가부시키가이샤
    • 사키타니가츠미구마쿠라에이지오카모토데츠야모리와키미치오오카모토마사카즈
    • F25B11/02F01C1/00F04C23/00F01C1/356
    • F25B9/06F01C1/46F01C11/004F25B1/04F25B9/008F25B2309/061
    • A low pressure in a refrigeration cycle and a refrigerant temperature at the outlet of a radiator under reference operating conditions are a reference low pressure and a reference refrigerant temperature, respectively, and a high pressure in a refrigeration cycle where the coefficient of performance of the refrigeration cycle becomes highest under reference operating conditions is a reference high pressure. Assuming the density of saturated gas refrigerant under the reference low pressure is rho1, the density of refrigerant under the reference high pressure and reference refrigerant temperature is rho2, the density of refrigerant under the reference high pressure and reference refrigerant temperature expanded adiabatically up to the reference low pressure is rho 3, the volume of the compression chamber of a compressor immediately after being shut off from the suction side is v1, and the rotation speed ratio of the compressor to that of an expansion machine is r, the volume v2 of a first fluid chamber (72) in the expansion machine (60) immediately after being shut off from the inflow side is set such that v2=rho1.v1.r/rho2, and the volume v3 of a second fluid chamber (82) immediately before communicating with the outflow side is set such that v3=rho2.v2/rho3.
    • 在参考操作条件下,制冷循环中的低压和散热器出口处的制冷剂温度分别是参考低压和参考制冷剂温度,以及制冷循环中的高压,其中制冷系统的性能系数 循环在参考运行条件下变为最高,是参考高压。 假设在参考低压下的饱和气体制冷剂的密度为rho1,则在参考高压和参考制冷剂温度下的制冷剂密度为rho2,参考高压下的制冷剂密度和参考制冷剂温度绝热直到参考 低压为rho 3,紧接着从吸入侧切断后的压缩机的压缩室的体积为v1,压缩机与膨胀机的转速比为r,第一 在从流入侧切断之后,膨胀机(60)中的流体室(72)被设定为使得v2 = rho1.v1.r / rho2以及紧接在通气之前的第二流体室(82)的容积v3 流出侧被设定为使得v3 = rho2.v2 / rho3。