公开(公告)号：US20040118138A1

公开(公告)日：2004-06-24

申请号：US10658421

申请日：2003-09-10

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kazuo Nakatani ,  Yoshikazu Kawabe ,  Noriho Okaza ,  Yuji Inoue ,  Akira Hiwata

IPC: F25B009/00 ,  F25B041/00 ,  F25B049/00 ,  F25B013/00

CPC classification number: F25B9/008 ,  F25B9/06 ,  F25B13/00 ,  F25B40/00 ,  F25B2309/061 ,  F25B2400/04 ,  F25B2600/17 ,  F25B2600/2501

Abstract: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. A determining method of a high pressure of a refrigeration cycle apparatus in which a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger, and the refrigeration cycle including a bypass circuit provided in parallel to said expander, and a control valve which adjusts a flow rate of refrigerant flowing through said bypass circuit, said compressor being driven by power recover by said expander, wherein if an optimal high pressure of a first refrigeration cycle flowing through said expander and a second refrigeration cycle flowing through said bypass circuit is defined as Ph, and a bypass amount ratio flowing through said bypass circuit in said Ph is defined as Rb0, and a maximum refrigeration cycle efficiency of said first refrigeration cycle in said Ph is defined as COPe, and a maximum refrigeration cycle efficiency of said second refrigeration cycle in said Ph is defined as COPb, the optimal high pressure Ph which maximizes (1nullRb0)nullCOPenullRb0nullCOPb is determined.

Abstract translation: 本发明的一个目的是减小密度比恒定的约束尽可能小，并且通过使用根据制冷剂的流动方向操作的膨胀机在宽的运行范围内获得高功率回收效果 。 一种制冷循环装置的高压确定方法，其中制冷循环使用二氧化碳作为制冷剂，并具有压缩机，室外热交换器，膨胀机和室内热交换器，并且制冷循环包括设置在旁路回路 平行于所述膨胀机的调节阀，调节流过所述旁通回路的制冷剂的流量的控制阀，所述压缩机由所述膨胀机的功率回收驱动，其中如果流过所述膨胀机的第一制冷循环的最佳高压和 流过所述旁通回路的第二制冷循环被定义为Ph，并且流过所述Ph中的所述旁路回路的旁路量比定义为Rb0，并且将所述Ph中的所述第一制冷循环的最大制冷循环效率定义为COPe， 并且所述Ph中的所述第二制冷循环的最大制冷循环效率被定义为COPb，最佳的高 确定使（1-Rb0）xCOPe + Rb0xCOPb最大化的h压力Ph。

公开(公告)号：US20040112812A1

公开(公告)日：2004-06-17

申请号：US10728883

申请日：2003-12-08

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Yoshikazu Kawabe ,  Kazuo Nakatani ,  Yuji Inoue ,  Noriho Okaza ,  Shigehiro Sato

IPC: C02F005/00

CPC classification number: F24D19/0092 ,  C02F1/4602 ,  C02F1/4618 ,  C02F5/025 ,  C02F5/08 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2209/06

Abstract: A scale removing operation of the heat exchange means or a regenerating operation of ion removing means is carried out using electrolytic water, thereby reducing the water processing amount. The present invention provides a water heater capable of preventing deterioration of performance caused by adhesion of scale, capable of preventing a trouble caused by clogging, and capable of increasing the lifetime. The water heater comprising a heat source, heat exchange means for heating supplied water, and electrolytic water generating means, wherein a removing operation of scale having salt as main ingredient deposited in a water pipe of the heat exchange means is carried out using produced water of the electrolytic water generating means.

Abstract translation: 使用电解水进行热交换装置的除垢操作或离子去除装置的再生操作，从而减少水处理量。 本发明提供一种能够防止水垢粘附性能下降的热水器，能够防止堵塞引起的故障，能够延长使用寿命。 所述热水器包括热源，用于加热供水的热交换装置和电解水产生装置，其中，使用沉积在所述热交换装置的水管中的作为主要成分的盐的水垢的去除操作使用 电解水生成装置。

公开(公告)号：US20040083751A1

公开(公告)日：2004-05-06

申请号：US10657180

申请日：2003-09-09

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kazuo Nakatani ,  Yoshikazu Kawabe ,  Yuji Inoue ,  Noriho Okaza ,  Akira Hiwata

IPC: F25B009/00 ,  F25B013/00 ,  F25D009/00

CPC classification number: F25B9/06 ,  F25B1/10 ,  F25B9/008 ,  F25B13/00 ,  F25B2309/061

Abstract: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger. An injection circuit for introducing high pressure refrigerant is provided in a halfway of an expansion process of said expander.

Abstract translation: 本发明的一个目的是减小密度比恒定的约束尽可能的小，并且在宽的操作范围内获得高功率回收效果。 制冷循环装置使用二氧化碳作为制冷剂，具有压缩机，室外热交换器，膨胀机和室内热交换器。 在所述膨胀机的膨胀过程的中途设置有用于引入高压制冷剂的注入回路。

公开(公告)号：US20040144120A1

公开(公告)日：2004-07-29

申请号：US10757397

申请日：2004-01-15

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kazuo Nakatani ,  Yoshikazu Kawabe ,  Yuji Inoue ,  Noriho Okaza

IPC: F25B041/00 ,  F25B013/00 ,  F25B049/00 ,  F25B001/00

CPC classification number: F25B1/10 ,  F25B9/008 ,  F25B13/00 ,  F25B31/006 ,  F25B2309/061 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/2509 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21152

Abstract: In the case of gas injection a discharging temperature is not reduced sufficiently, and if an amount of injection is increased, a liquid refrigerant flows into a cylinder and the liquid is compressed, and the reliability can not be ensured. A refrigerator wherein at least a compressor, a radiator, a first throttle apparatus and an evaporator are connected to one another in an annular form to constitute a main circuit of a refrigeration cycle, a refrigerant which can be brought into a supercritical state by the radiator during operation is charged into the refrigeration cycle, the refrigerator comprises an injection pipe for injecting the refrigerant on the side of an outlet of the radiator into a cylinder of the compressor.

Abstract translation: 在气体注入的情况下，排出温度不能充分降低，并且如果喷射量增加，液体制冷剂流入气缸并且液体被压缩，并且不能确保可靠性。 一种冰箱，其中至少一个压缩机，散热器，第一节流装置和蒸发器以环形形式彼此连接以构成制冷循环的主回路，制冷剂可通过散热器进入超临界状态 在操作期间，将制冷剂装入制冷循环中，所述冰箱包括用于将所述制冷剂在所述散热器的出口侧喷射到所述压缩机的气缸中的喷射管。

公开(公告)号：US20040074254A1

公开(公告)日：2004-04-22

申请号：US10655020

申请日：2003-09-05

Applicant: Matsushita Electric Industrial Co., Ltd.

Inventor： Akira Hiwata ,  Yuji Inoue ,  Yoshikazu Kawabe ,  Noriho Okaza ,  Kazuo Nakatani

IPC: F25B009/00 ,  F25B013/00 ,  F25D009/00 ,  F25B001/00

CPC classification number: F25B9/06 ,  F25B1/10 ,  F25B9/008 ,  F25B13/00 ,  F25B2309/061 ,  F25B2313/0272 ,  F25B2313/02741 ,  F25B2313/02743

Abstract: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander, an indoor heat exchanger and an auxiliary compressor. The auxiliary compressor is driven by power recover by the expander. When refrigerant flows using the indoor heat exchanger as an evaporator, a discharge side of the auxiliary compressor becomes a suction side of the compressor, and when refrigerant flows using the indoor heat exchanger as a gas cooler, a discharge side of the compressor becomes a suction side of the auxiliary compressor.

Abstract translation: 本发明的一个目的是减小密度比恒定的约束尽可能的小，并且在宽的操作范围内获得高功率回收效果。 制冷循环装置使用二氧化碳作为制冷剂，具有压缩机，室外热交换器，膨胀机，室内热交换器和辅助压缩机。 辅助压缩机由膨胀机的电力恢复驱动。 当制冷剂使用室内热交换器作为蒸发器流动时，辅助压缩机的排出侧成为压缩机的吸入侧，并且当制冷剂使用室内热交换器作为气体冷却器流动时，压缩机的排出侧成为吸入 侧辅助压缩机。