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    • 24. 发明申请
    • SUPERCRITICAL REFRIGERATION CYCLE SYSTEM
    • 超临界制冷循环系统
    • US20080314071A1
    • 2008-12-25
    • US11507833
    • 2006-08-22
    • Hiromi OhtaYoshinori Murase
    • Hiromi OhtaYoshinori Murase
    • F25B6/02
    • F25B9/008F25B5/02F25B5/04F25B40/00F25B2309/061F25B2341/063F25B2341/0662F25B2600/2501F25B2700/2117F25B2700/21174F25B2700/21175
    • A supercritical refrigeration cycle system (10) having a simplified flow path configuration comprises a compressor (1) for sucking in and compressing a refrigerant, a radiator (2) for radiating the heat of the high-pressure refrigerant discharged from the compressor (1), a high-pressure control valve (5) and a superheat control valve (12) into which the high-pressure refrigerant flowing out of the radiator (2) flows after being distributed, a first evaporator (6) for evaporating the influent refrigerant decompressed by the high-pressure control valve (5), and a second evaporator (9) for evaporating the influent refrigerant decompressed by the superheat control valve (12). The outlet of the second evaporator (9) and the inlet of the first evaporator (6) are connected to each other by the refrigerant path (13) in such a manner that the refrigerant flowing out of the second evaporator (9) flows into the first evaporator (6). An increase in the blowout air temperature can be reduced by controlling the refrigerant flowing in each of the plurality of the evaporators.
    • 具有简化流路结构的超临界制冷循环系统(10)包括用于吸入和压缩制冷剂的压缩机(1),用于辐射从压缩机(1)排出的高压制冷剂的热量的散热器(2) ,分配有从散热器(2)流出的高压制冷剂流过的高压控制阀(5)和过热控制阀(12),使流入制冷剂蒸发的第一蒸发器(6) 通过高压控制阀(5)和第二蒸发器(9),用于蒸发由过热控制阀(12)减压的流入制冷剂。 第二蒸发器(9)的出口和第一蒸发器(6)的入口通过制冷剂路径(13)彼此连接,使得从第二蒸发器(9)流出的制冷剂流入 第一蒸发器(6)。 可以通过控制在多个蒸发器中的每一个中流动的制冷剂来降低喷出空气温度的增加。
    • 25. 发明申请
    • Supercritical cycle and expansion valve used for refrigeration cycle
    • 用于制冷循环的超临界循环和膨胀阀
    • US20070227165A1
    • 2007-10-04
    • US11729543
    • 2007-03-29
    • Hiromi Ohta
    • Hiromi Ohta
    • F25B41/00
    • F25B40/00F25B9/008F25B41/062F25B2309/061F25B2341/063
    • A supercritical cycle comprises an evaporator 41, a compressor 33, a gas cooler 35 and a main valve portion 39 of an expansion valve 37 arranged in that order. An internal heat exchanger 45 is arranged for exchanging heat between the high-pressure side refrigerant flowing toward the main valve portion 39 of the expansion valve 37 from the gas cooler 35 and the low-pressure side refrigerant flowing toward the compressor 33 from the evaporator 41. The expansion valve 37 is formed integrally with a temperature sensing portion 47 for controlling the main valve portion 39, and includes a bypass 51 for supplying the refrigerant to the temperature sensing portion 47 from the upstream side of the internal heat exchanger 45 in which the high-pressure side refrigerant flows and an orifice 53 for supplying the refrigerant from the temperature sensing portion 47 to the refrigerant circuit downstream of the main valve portion 39. The internal heat exchanger are arranged between the devices to facilitate the mounting thereof, while at the same time shortening the piping length.
    • 超临界循环包括依次布置的蒸发器41,压缩机33,气体冷却器35和膨胀阀37的主阀部分39。 内部热交换器45布置成用于在从气体冷却器35向膨胀阀37的主阀部39流动的高压侧制冷剂和从蒸发器41向压缩机33流动的低压侧制冷剂之间进行热交换 。 膨胀阀37与用于控制主阀部39的温度检测部47一体地形成,并且包括从内部热交换器45的上游侧向温度检测部47供给制冷剂的旁通部51, 压力侧制冷剂流动,以及用于将制冷剂从温度检测部分47供应到主阀部分39下游的制冷剂回路的孔口53。 内部热交换器布置在装置之间以便于其安装,同时缩短管道长度。
    • 26. 发明申请
    • Expansion valve for refrigerating cycle
    • 膨胀阀用于制冷循环
    • US20060150650A1
    • 2006-07-13
    • US11330941
    • 2006-01-12
    • Yoshinori MuraseYoshitaka TomatsuNobuharu KakehashiHiromi Ohta
    • Yoshinori MuraseYoshitaka TomatsuNobuharu KakehashiHiromi Ohta
    • F25B41/04F25B41/00F25B41/06
    • F25B41/062F25B2309/061F25B2341/063F25B2341/0683
    • An expansion valve for a refrigerating cycle, in which the body dimensions and the weight of the whole valve can be reduced and a reduction in cost can be achieved. An expansion valve of the invention comprising a temperature-sensing portion arranged in a refrigerant passage leading to an evaporator from a gas cooler or an internal heat exchanger in a vapor compression type refrigerating cycle and varied in internal pressure according to a refrigerant temperature at an outlet side of the gas cooler or on an outlet side of the internal heat exchanger, a valve member that mechanically interlocks with a change in internal pressure of the temperature-sensing portion to adjust an opening degree of a valve port, and a body that accommodates therein the valve member, and wherein the body is provided with a flow passage, through which a refrigerant reduced in pressure by the valve member is led to the evaporator while a refrigerant temperature at the outlet side of the gas cooler or on the outlet side of the internal heat exchanger is transmitted to the temperature-sensing portion. Also, that density, at which a refrigerant is charged in a temperature-sensing body, is set in the range of about 200 kg/m3 to about 600 kg/m3. Further, a ratio of a temperature-sensing cylinder corresponding portion to the temperature-sensing body is made at least 60%.
    • 一种用于制冷循环的膨胀阀,其中可以减小主体尺寸和整个阀的重量并降低成本。 本发明的膨胀阀包括温度感测部分,其布置在通过蒸汽压缩型制冷循环中的气体冷却器或内部热交换器通向蒸发器的制冷剂通道中,并根据出口处的制冷剂温度而变化内部压力 气体冷却器的一侧或内部热交换器的出口侧,阀构件,其与温度感测部的内部压力的变化机械地联锁以调节阀口的开度,以及容纳在其中的主体 阀构件,并且其中主体设置有流动通道,通过该流动通道将由阀构件减压的制冷剂引导到蒸发器,同时在气体冷却器的出口侧处的制冷剂温度或在气体冷却器的出口侧 内部热交换器被传送到温度感测部分。 此外,将制冷剂在感温体内充电的密度设定在约200kg / m 3〜约600kg / m 3以下的范围内 >。 此外,温度感测筒对应部分与温度检测体的比率至少为60%。
    • 27. 发明授权
    • Vehicle air conditioning system
    • 车用空调系统
    • US06644055B2
    • 2003-11-11
    • US10245804
    • 2002-09-16
    • Hiromi OhtaYasuhiko Niimi
    • Hiromi OhtaYasuhiko Niimi
    • F25B4900
    • B60H1/322B60H2001/3261B60H2001/3266B60H2001/327F25B49/022
    • A vehicle air conditioning system mountable on a vehicle has the control function of stopping a vehicle engine automatically when the vehicle stops (eco-run vehicle). The system includes a variable displacement compressor driven by the vehicle engine, and a stop time of the vehicle engine is ensured when the vehicle stops. When the engine is running, the displacement of the variable displacement compressor is adjusted to control the temperature of an evaporator. When the vehicle engine stop request is issued when the vehicle is stopped, the compressor is kept at its maximum displacement and the vehicle engine is either stopped or activated depending on the temperature of the evaporator to control the on and off modes of the compressor.
    • 可安装在车辆上的车辆空调系统具有当车辆停止时自动停止车辆发动机(eco-run vehicle)的控制功能。 该系统包括由车辆发动机驱动的可变排量压缩机,并且当车辆停止时确保车辆发动机的停止时间。 当发动机运行时,调节可变排量压缩机的位移以控制蒸发器的温度。 当车辆停止时发出车辆发动机停止请求时,压缩机保持在其最大位移,并且根据蒸发器的温度停止或启动车辆发动机,以控制压缩机的开和关模式。