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公开(公告)号：US5983657A
公开(公告)日：1999-11-16
申请号：US13345
申请日：1998-01-26
CPC分类号： B60H1/3225 , F25B2309/061
摘要： An air conditioning system having an evaporator 8 at a location upstream from a compressor. When a compressor is stopped, a refrigerant inlet is closed by an electromagnetic valve 28 and a refrigerant outlet is closed by a check valve 29. A pressure in the closed passageway is detected by a pressure sensor 22. A leakage of refrigerant at the evaporator is reliably detected, which allows the leakage of the refrigerant to be quickly noticed.
摘要翻译： 一种在压缩机上游位置具有蒸发器8的空调系统。 当压缩机停止时，制冷剂入口被电磁阀28关闭，制冷剂出口由止回阀29关闭。封闭通道中的压力由压力传感器22检测。制冷剂在蒸发器处的泄漏是 可靠地检测，这允许快速注意到制冷剂的泄漏。
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公开(公告)号：US6000233A
公开(公告)日：1999-12-14
申请号：US150318
申请日：1998-09-09
IPC分类号： F25B1/00 , C10M145/24 , C10M171/00 , C10N40/30 , F25B9/00 , F25B31/00 , F25B43/00 , F25B41/00
CPC分类号： F25B31/002 , C10M171/008 , F25B43/006 , F25B9/008 , C10M2209/00 , C10M2209/02 , C10M2209/10 , C10M2209/103 , F25B2309/061
摘要： In a CO.sub.2 refrigerant cycle, a lubricating oil for a compressor has a compatibility relative to CO.sub.2 refrigerant, and the compatibility of the lubricating oil relative to the CO.sub.2 refrigerant at a pressure lower than a critical pressure of the CO.sub.2 refrigerant is lower than that at a pressure higher than the critical pressure of the CO.sub.2 refrigerant. Thus, in a low-pressure side such as an accumulator of the CO.sub.2 refrigerant cycle, because a liquid lubricating oil is separated with a liquid CO.sub.2 refrigerant, only the lubricating oil can be readily introduced into a suction side of the compressor, and it can prevent the liquid CO.sub.2 refrigerant from being sucked into the compressor. As a result, it can prevent a damage to the compressor while preventing deterioration of coefficient of performance of the CO.sub.2 refrigerant cycle.
摘要翻译： 在二氧化碳制冷剂循环中，用于压缩机的润滑油具有相对于二氧化碳制冷剂的相容性，并且在低于二氧化碳制冷剂的临界压力的压力下，润滑油相对于二氧化碳制冷剂的相容性低于二氧化碳制冷剂 压力高于CO2制冷剂的临界压力。 因此，在CO 2制冷剂循环的蓄压器等低压侧，由于液体润滑油与液体CO 2制冷剂分离，所以只能将润滑油引入压缩机的吸入侧， 防止液体CO2制冷剂被吸入压缩机。 结果，能够防止压缩机的损坏，同时防止二氧化碳制冷剂循环的性能系数的劣化。
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公开(公告)号：US06370896B1
公开(公告)日：2002-04-16
申请号：US09441965
申请日：1999-11-17
申请人： Hisayoshi Sakakibara , Shin Nishida , Masahiko Ito , Kenichi Fujiwara , Tomoaki Kobayakawa , Kazutoshi Kusakari , Michiyuki Saikawa
发明人： Hisayoshi Sakakibara , Shin Nishida , Masahiko Ito , Kenichi Fujiwara , Tomoaki Kobayakawa , Kazutoshi Kusakari , Michiyuki Saikawa
IPC分类号： F25D1702
CPC分类号： F25B40/06 , F24H4/04 , F25B9/008 , F25B30/02 , F25B40/00 , F25B2309/061 , F25B2339/047 , F25B2600/0253 , F25B2600/17 , F25B2600/2501 , F25B2700/21151 , F25B2700/21161 , Y02B30/741
摘要： A hot water supply system wherein a flow of a refrigerant on a high-pressure side of a supercritical heat pump cycle and a flow of hot water are oppositely directed, and wherein water heated by the refrigerant on the high-pressure side is stored in heat insulating tanks of a vacuous and double structure. Water is heated with heat absorbed from the atmosphere and by the supercritical heat pump cycle having a high heat exchange efficiency &eegr;, to reduce the power required to heat the water. Therefore, hot water can be generated even in the daytime during peak power rates. Accordingly, because it is unnecessary to store hot water for daytime use in insulated tanks, system space requirements are reduced.
摘要翻译： 一种热水供应系统，其中超临界热泵循环的高压侧的制冷剂的流动和热水的流动相反地指向，并且其中由高压侧的制冷剂加热的水储存在热 真空和双重结构的绝缘罐。 用大气吸收的热量和具有高热交换效率η的超临界热泵循环对水进行加热，以减少加热水所需的功率。 因此，即使在峰值功率时的白天，也可能产生热水。 因此，由于不需要在绝热罐中储存白天用的热水，因此减少了系统空间要求。
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公开(公告)号：US5890370A
公开(公告)日：1999-04-06
申请号：US789210
申请日：1997-01-24
CPC分类号： C09K5/041 , F25B13/00 , F25B41/062 , F25B9/008 , G05D16/0619 , G05D16/0644 , C09K2205/106 , F25B2309/061 , F25B2313/0314 , F25B2341/063 , F25B2341/0653 , F25B2600/0253 , F25B2600/17 , F25B2700/2104 , Y02B30/72 , Y02P20/124 , Y02P20/544
摘要： A refrigerating system of vapor compression type operating at a super critical area, while obtaining an increased efficiency. The refrigerating system includes a pressure control means for controlling the temperature and the pressure at the outlet of a heat emitter. The pressure control valve responds to a pressure difference between the inlet pressure of the refrigerant to the pressure control valve and the pressure in an outwardly sealed chamber in which the refrigerant is filled such that, with respect to the volume of the chamber under closed condition of the pressure control valve, a density of the refrigerant is in a range between a density of a saturated liquid at a temperature of 0.degree. C. and a density at the critical point of the refrigerant. As a result, the pressure and the temperature at the outlet of the heat emitter is controlled substantially along the optimum control line .eta.max, resulting in an effective execution of a refrigerating cycle at the critical area.
摘要翻译： 一种在超临界区域工作的蒸汽压缩式制冷系统，同时获得更高的效率。 制冷系统包括用于控制发热体出口处的温度和压力的压力控制装置。 压力控制阀响应于制冷剂与压力控制阀的入口压力之间的压力差和在其中填充制冷剂的向外密封的室中的压力，使得相对于在闭合状态下的室的体积 压力控制阀，制冷剂的密度在0℃的饱和液体的密度与制冷剂的临界点的密度之间的范围内。 结果，发热体出口处的压力和温度基本上沿着最佳控制线eta max被控制，从而在关键区域有效地执行制冷循环。
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公开(公告)号：US06494051B2
公开(公告)日：2002-12-17
申请号：US09969249
申请日：2001-10-01
申请人： Hisayoshi Sakakibara , Shin Nishida , Masahiko Ito , Kenichi Fujiwara , Tomoaki Kobayakawa , Kazutoshi Kusakari , Michiyuki Saikawa
发明人： Hisayoshi Sakakibara , Shin Nishida , Masahiko Ito , Kenichi Fujiwara , Tomoaki Kobayakawa , Kazutoshi Kusakari , Michiyuki Saikawa
IPC分类号： F25B4104
CPC分类号： F25B40/06 , F24H4/04 , F25B9/008 , F25B30/02 , F25B40/00 , F25B2309/061 , F25B2339/047 , F25B2600/0253 , F25B2600/17 , F25B2600/2501 , F25B2700/21151 , F25B2700/21161 , Y02B30/741
摘要： A hot water supply system wherein a flow of a refrigerant on a high-pressure side of a supercritical heat pump cycle and a flow of hot water are oppositely directed, and wherein water heated by the refrigerant on the high-pressure side is stored in heat insulating tanks of a vacuous and double structure. Water is heated with heat absorbed from the atmosphere and by the supercritical heat pump cycle having a high heat exchange efficiency &eegr;, to reduce the power required to heat the water. Therefore, hot water can be generated even in the daytime during peak power rates. Accordingly, because it is unnecessary to store hot water for daytime use in insulated tanks, system space requirements are reduced.
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公开(公告)号：US5918475A
公开(公告)日：1999-07-06
申请号：US722607
申请日：1996-09-27
申请人： Hisayoshi Sakakibara , Shin Nishida
发明人： Hisayoshi Sakakibara , Shin Nishida
CPC分类号： B60H1/008 , B60H1/00978 , B60H1/3225 , F25B2400/12
摘要： According to the present invention, when leakage of refrigerant is detected during operation of an air conditioning apparatus for a vehicle, air outlets for a passenger and a solenoid valve for an air passage are closed. Accordingly, a compressor is stopped after a predetermined time has elapsed since the solenoid valve is closed. In this way, refrigerant within an evaporator is sucked and discharged. Consequently, an amount of refrigerant leaking from an air conditioner casing due to damage of the evaporator can be reduced.
摘要翻译： 根据本发明，在车辆用空调装置的运转中检测到制冷剂的泄漏时，乘客的出风口和空气通路的电磁阀被封闭。 因此，从电磁阀关闭起经过了规定时间后，压缩机停止。 以这种方式，蒸发器内的制冷剂被吸入和排出。 因此，可以减少由于蒸发器的损坏而从空调壳体泄漏的制冷剂量。
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公开(公告)号：US5660051A
公开(公告)日：1997-08-26
申请号：US706674
申请日：1996-09-06
申请人： Hisayoshi Sakakibara , Shin Nishida
发明人： Hisayoshi Sakakibara , Shin Nishida
CPC分类号： B60H1/00764 , B60H1/3208
摘要： In an air conditioner according to the present invention, the first and second electromagnetic valves are disposed at the outlet port and the inlet port of the condenser, which is disposed at a position away from the passenger compartment and may be easily damaged by the outer force when the vehicle collides. The first and second electromagnetic valves are closed when the outer force applied to the vehicle is equal to a predetermined value or more. In this way, an amount of leaking refrigerant is as much as the amount accumulated in the air conditioning devices at most, thus making it possible to reduce the leakage of the refrigerant.
摘要翻译： 在根据本发明的空调中，第一和第二电磁阀设置在冷凝器的出口和入口处，其设置在远离乘客室的位置，并且可能容易地被外力损坏 车辆碰撞时。 当施加到车辆的外力等于或大于预定值时，第一和第二电磁阀关闭。 以这种方式，泄漏的制冷剂的量与空调装置中积累的量一样多，从而可以减少制冷剂的泄漏。
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公开(公告)号：US06543238B2
公开(公告)日：2003-04-08
申请号：US09892109
申请日：2001-06-26
申请人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
发明人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
IPC分类号： F28B900
CPC分类号： F04C23/008 , A63B2053/023 , F04C18/0215 , F04C23/003 , F04C29/0064 , F25B1/10 , F25B9/008 , F25B9/06 , F25B11/02 , F25B2309/061 , F25B2341/0661 , F25B2341/0662 , F25B2400/04 , F25B2400/075 , F25B2400/13 , F25B2400/14 , F25B2400/141 , F25B2600/17
摘要： In a refrigerant cycle system, refrigerant compressed in a first compressor is cooled and condensed in a radiator, and refrigerant from the radiator branches into main-flow refrigerant and supplementary-flow refrigerant. The main-flow refrigerant is decompressed in an expansion unit while expansion energy of the main-flow refrigerant is converted to mechanical energy. Thus, the enthalpy of the main-flow refrigerant is reduced along an isentropic curve. Therefore, even when the pressure within the evaporator increases, refrigerating effect is prevented from being greatly reduced in the refrigerant cycle system. Further, refrigerant flowing into the radiator is compressed using the converted mechanical energy. Thus, coefficient of performance of the refrigerant cycle system is improved.
摘要翻译： 在制冷剂循环系统中，在第一压缩机中压缩的制冷剂在散热器中冷却冷凝，来自散热器的制冷剂分支成主流制冷剂和辅助流动制冷剂。 主流制冷剂在膨胀单元中减压，主流制冷剂的膨胀能转化为机械能。 因此，主流制冷剂的焓沿着等熵曲线减小。 因此，即使当蒸发器内的压力增加时，制冷剂循环系统也不会大大降低制冷效果。 此外，流入散热器的制冷剂使用转换后的机械能进行压缩。 因此，制冷剂循环系统的性能系数提高。
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公开(公告)号：US06321564B1
公开(公告)日：2001-11-27
申请号：US09524676
申请日：2000-03-13
申请人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
发明人： Yasushi Yamanaka , Yasutaka Kuroda , Shin Nishida , Motohiro Yamaguchi , Yukikatsu Ozaki , Tadashi Hotta , Sadahisa Onimaru , Mitsuo Inagaki
IPC分类号： F25B110
CPC分类号： F04C23/008 , A63B2053/023 , F04C18/0215 , F04C23/003 , F04C29/0064 , F25B1/10 , F25B9/008 , F25B9/06 , F25B11/02 , F25B2309/061 , F25B2341/0661 , F25B2341/0662 , F25B2400/04 , F25B2400/075 , F25B2400/13 , F25B2400/14 , F25B2400/141 , F25B2600/17
摘要： In a refrigerant cycle system, refrigerant compressed in a first compressor is cooled and condensed in a radiator, and refrigerant from the radiator branches into main-flow refrigerant and supplementary-flow refrigerant. The main-flow refrigerant is decompressed in an expansion unit while expansion energy of the main-flow refrigerant is converted to mechanical energy. Thus, the enthalpy of the main-flow refrigerant is reduced along an isentropic curve. Therefore, even when the pressure within the evaporator increases, refrigerating effect is prevented from being greatly reduced in the refrigerant cycle system. Further, refrigerant flowing into the radiator is compressed using the converted mechanical energy. Thus, coefficient of performance of the refrigerant cycle system is improved.
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公开(公告)号：US20100024469A1
公开(公告)日：2010-02-04
申请号：US12462111
申请日：2009-07-29
CPC分类号： F25B49/02 , B60H1/3228 , B60H2001/3291 , F25B40/00 , F25B2600/21 , F25B2700/2117
摘要： A refrigerating cycle apparatus includes a circulation refrigerant, a compressor, a condenser, an expansion valve, an evaporator, and an internal heat exchanger. The internal heat exchanger is disposed to perform heat exchange between a high pressure circulation refrigerant flowing from the condenser to the expansion valve and a low pressure circulation refrigerant flowing from the evaporator and the compressor. The circulation refrigerant has a property indicating an isentropic line having a gradient greater than a gradient of an isentropic line of a R134a refrigerant and a saturation characteristic curve having a two-phase region enthalpy width smaller than a two-phase region enthalpy width of the R134a refrigerant, on a p-h chart.
摘要翻译： 制冷循环装置包括循环制冷剂，压缩机，冷凝器，膨胀阀，蒸发器和内部热交换器。 内部热交换器被设置为在从冷凝器流向膨胀阀的高压循环制冷剂和从蒸发器和压缩机流动的低压循环制冷剂之间进行热交换。 循环制冷剂具有表示具有比R134a制冷剂的等熵线的梯度大的梯度的等熵线和具有比R134a的两相区域焓宽小的两相区域焓值的饱和特性曲线的性质 制冷剂，在ph图表上。
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