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    Refrigeration apparatus
    2.
    发明授权
    Refrigeration apparatus 有权
    制冷装置

    公开(公告)号：US08966933B2

    公开(公告)日：2015-03-03

    申请号：US14365997

    申请日：2012-12-26

    Applicant: Daikin Industries, Ltd.

    Inventor： Tetsuya Okamoto ,  Kazuhiro Furusho ,  Ikuhiro Iwata ,  Guozhong Yang

    IPC: F25B43/02 ,  F25B1/10 ,  F25B29/00

    CPC classification number: F25B43/02 ,  F25B1/10 ,  F25B9/008 ,  F25B13/00 ,  F25B29/003 ,  F25B31/004 ,  F25B2309/061 ,  F25B2313/0233 ,  F25B2313/02533 ,  F25B2313/02541 ,  F25B2313/02743 ,  F25B2400/072

    Abstract: A refrigeration apparatus includes a multistage compression mechanism, switching mechanisms, intercoolers, oil separators, and a control unit. The multistage compression mechanism has one high-stage-side compression mechanism and a plurality of low-stage-side compression mechanisms connected in series. The switching mechanisms are connected to blow-out pipes of the low-stage-side compression mechanisms. The switching mechanisms switch between cooling and heating operation cycles. The intercoolers cool refrigerant blown out from the low-stage-side compression mechanisms during the cooling cycle. The oil separators are disposed between the switching mechanisms and the intercoolers. The oil separators separate lubricating oil from refrigerant blown out from the low-stage-side compression mechanisms during the cooling cycle. The control unit controls the multi-stage compression mechanism and the switching mechanisms. Refrigerant from the low-stage-side compression mechanisms passes through the oil separators and intercoolers during the cooling cycle, not during the heating cycle.

    Abstract translation: 制冷装置包括多级压缩机构，切换机构，中间冷却器，油分离器和控制单元。 多级压缩机构具有串联连接的一个高压侧压缩机构和多个低压侧压缩机构。 开关机构与低压侧压缩机构的吹出管连接。 开关机构在冷却和加热操作循环之间切换。 在冷却循环期间，中间冷却器冷却从低级侧压缩机构吹出的制冷剂。 油分离器设置在切换机构和中间冷却器之间。 油分离器在冷却循环期间将润滑油与从低级侧压缩机构吹出的制冷剂分离。 控制单元控制多级压缩机构和切换机构。 来自低级侧压缩机构的制冷剂在冷却循环期间通过油分离器和中间冷却器，而不是在加热循环期间。

    Heat pump equipment
    3.
    发明授权
    Heat pump equipment 失效
    热泵设备

    公开(公告)号：US06751976B2

    公开(公告)日：2004-06-22

    申请号：US09974813

    申请日：2001-10-12

    Applicant: Albert Robert Lowes

    Inventor： Albert Robert Lowes

    IPC: F25B1300

    CPC classification number: F25B40/00 ,  F25B13/00 ,  F25B2313/0251 ,  F25B2313/02531 ,  F25B2313/02533 ,  F25B2313/0254 ,  F25B2313/02541 ,  F25B2313/02542 ,  F25B2313/02543 ,  F25B2313/02741 ,  F25B2313/02743 ,  F25B2341/066

    Abstract: Heat pump equipment comprising at least three heat exchangers, one of which is intended to be located in an enclosed region and the other two of which are intended to be located outside the enclosed region. Each heat exchanger has a delta connection end connected in heat-exchange fluid communication with a delta arrangement. The delta connection end of each heat exchanger is connected to both of the delta connection ends of the other two heat exchangers via the delta arrangement. There are three fluid-expansion devices, one between the two connections of each pair of adjacent connections of the heat exchangers to the delta arrangement. The present invention extends to heat pump equipment comprising at least three heat exchangers connected in a heat-exchange fluid circuit, one of which heat exchangers is intended to be located in an enclosed region and another of which is intended to be located outside the enclosed region. A third one of the heat exchangers is arranged so that air which flows through an aperture in a wall which forms a boundary of the enclosed region passes over the said third heat exchanger.

    Abstract translation: 包括至少三个热交换器的热泵设备，其中一个热交换器旨在位于封闭区域中，另外两个热交换器旨在位于封闭区域外部。 每个热交换器具有以三角形排列与热交换流体连通的三角形连接端。 每个热交换器的三角形连接端通过三角形排列与另外两个热交换器的三角形连接端连接。 有三个流体膨胀装置，一个在热交换器的每对相邻连接的两个连接之间到三角形排列。本发明延伸到热泵设备，其包括在热交换流体回路中连接的至少三个热交换器 其中一个热交换器旨在位于封闭区域中，另一个热交换器旨在位于封闭区域外部。 第三个热交换器被布置成使得流过形成封闭区域的边界的壁中的孔的空气通过所述第三热交换器。

    Oil Return Method for Multi-Split Air Conditioner in Heating
    4.
    发明申请
    Oil Return Method for Multi-Split Air Conditioner in Heating 审中-公开
    多分段空调在加热中的回油方法

    公开(公告)号：US20160123635A1

    公开(公告)日：2016-05-05

    申请号：US14893351

    申请日：2013-12-18

    Applicant: Gree Electric Appliances, Inc. of Zhuhai

    Inventor： Chun HUANG ,  Peigang SONG ,  Hexin LIU ,  Zebin CHEN ,  Qunbo LIU

    IPC: F25B31/00

    CPC classification number: F25B31/004 ,  F25B13/00 ,  F25B49/02 ,  F25B2313/0233 ,  F25B2313/0253 ,  F25B2313/02533 ,  F25B2500/16 ,  F25B2600/01 ,  F25B2600/02 ,  F25B2600/0253 ,  F25B2600/2513 ,  Y02B30/741

    Abstract: An oil return method for multi-split air conditioner in heating comprises steps of: S1, adjusting operation frequency f0 of a compressor (11) to a first preset oil return frequency f1, and simultaneously, adjusting open degree S0 of each indoor throttling element (22) to a preset oil return open degree; S2, measuring operation parameters of the air conditioner; S3, judging whether the air conditioner operates abnormally, jumping to Step S4 if so, or jumping to Step S5 if not; S4, exiting from oil return process, adjusting the operation frequency f0 of the compressor (11) to a second preset oil return frequency f2, judging whether the air conditioner operates abnormally, existing from the oil return process if so, or jumping to Step S5 if not; S5, ending the oil return process when oil return time reaches the oil return time t2.

    Abstract translation: 一种加热多分体空调机的回油方法，包括以下步骤：S1，将压缩机（11）的运转频率f0调整到第一预设回油频率f1，同时调节各室内节流元件的开度S0 22）预设回油开度; S2，空调的测量操作参数; S3，判断空调是否运转异常，跳转到步骤S4，否则跳到步骤S5; 如图S4所示，从退油处理出发，将压缩机（11）的运转频率f0调整到第二预设回油频率f2，判断空调机是否异常运转，否则返回到步骤S5 如果不; S5，当回油时间到达回油时间t2时结束回油过程。

    AIR CONDITIONER
    5.
    发明申请
    AIR CONDITIONER 有权
    冷气机

    公开(公告)号：US20160033179A1

    公开(公告)日：2016-02-04

    申请号：US14712600

    申请日：2015-05-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Donghwi KIM ,  Ilyoong SHIN ,  Junseong PARK

    IPC: F25B30/02 ,  F25B39/00 ,  F28D1/02

    CPC classification number: F25B30/02 ,  F24F1/14 ,  F24F1/30 ,  F25B13/00 ,  F25B39/00 ,  F25B39/028 ,  F25B41/003 ,  F25B2313/025 ,  F25B2313/02533 ,  F25B2313/02541 ,  F25B2400/075 ,  F25B2400/13 ,  F28D1/0233 ,  F28D1/0477 ,  F28F9/0275 ,  F28F17/005

    Abstract: An air conditioner includes a compressor, a flow switching part, an outdoor heat exchanger including a plurality of refrigerant tubes for guiding the refrigerant heat exchanged with outdoor air, a main expansion valve disposed at one side of the outdoor heat exchanger, a first inlet/outlet tube extending from the flow switching part to the outdoor heat exchanger, and a second inlet/outlet tube extending from the outdoor heat exchanger to the main expansion valve. The outdoor heat exchanger includes a header defining a flow space for the refrigerant, the header including an upper header and a lower header, a check valve disposed between the upper header and the lower header to guide the refrigerant to flow in one direction, and a bypass tube extending from the lower header to the second inlet/outlet tube to guide a discharge of a liquid refrigerant existing in the lower header.

    Abstract translation: 一种空气调节机，包括压缩机，流量切换部，室外热交换器，该室外热交换器包括多个用于引导与室外空气交换的制冷剂的制冷剂管，设置在室外热交换器一侧的主膨胀阀，第一入口/ 出口管从流动切换部分延伸到室外热交换器，以及从室外热交换器延伸到主膨胀阀的第二入口/出口管。 室外热交换器包括限定用于制冷剂的流动空间的集管，集管包括上集管和下集管，止回阀，设置在上集管和下集管之间，以引导制冷剂沿一个方向流动， 旁路管从下集管延伸到第二入口/出口管，以引导存在于下集管中的液体制冷剂的排放。

    ALTERNATING TYPE HEAT PUMP
    6.
    发明申请
    ALTERNATING TYPE HEAT PUMP 审中-公开
    替代型热泵

    公开(公告)号：US20130139533A1

    公开(公告)日：2013-06-06

    申请号：US13810503

    申请日：2011-07-07

    Applicant: Chang Duk Jeon

    Inventor： Chang Duk Jeon

    IPC: F25B30/02

    CPC classification number: F25B30/02 ,  F25B13/00 ,  F25B47/02 ,  F25B2313/0251 ,  F25B2313/02533 ,  F25B2313/02741

    Abstract: An alternating type heat pump has first to third rows of outdoor unit coils adapted to selectively perform the functions of an evaporator and a condenser in accordance with the outdoor conditions and the load variations, thereby improving the performance of the heat pump, and is capable of allowing the first to third rows of outdoor unit coils to be operated as a condenser in an alternating manner under the conditions where frost on the outdoor unit coils may be formed especially in winter seasons, thereby basically preventing the conditions on which the frost is formed.

    Abstract translation: 交替型热泵具有第一至第三排户外单元线圈，其适于根据室外条件和负载变化选择性地执行蒸发器和冷凝器的功能，由此提高热泵的性能，并且能够 允许第一至第三排户外单元线圈在冬季可以形成室外单元线圈上的结霜的条件下以交替的方式作为冷凝器操作，从而基本上防止形成霜的条件。

    Three coil electric heat pump
    7.
    发明授权
    Three coil electric heat pump 失效
    三线电热泵

    公开(公告)号：US5771699A

    公开(公告)日：1998-06-30

    申请号：US720581

    申请日：1996-10-02

    Applicant: Henderson F. Ponder

    Inventor： Henderson F. Ponder

    IPC: F24F11/00 ,  F25B13/00 ,  F25B47/02 ,  F25B41/00 ,  F25B47/00

    CPC classification number: F25B13/00 ,  F24F11/0086 ,  F25B47/02 ,  F24F2011/0087 ,  F25B2313/0251 ,  F25B2313/02531 ,  F25B2313/02533 ,  F25B2313/02542 ,  F25B2347/021

    Abstract: An air conditioning system usually referred to as an electric heat pump, which employs reverse cycle refrigeration apparatus to condition air inside a building for heating in the winter months, and for cooling in the summer months, utilizing one heat exchanger coil disposed in heat exchange relation to the flow of conditioned air circulating within a building, and two heat exchanger coils disposed in heat exchange relation to the flow of ambient air circulating outside a building, wherein each said heat exchanger coil comprises a separate and singular component part of a single air conditioning circuit connected to, and served by one single compressor; and wherein, each of the said outside heat exchanger coils are designed to change functions independent of the other, from that of an evaporator, to that of a condenser, for the purpose of inhibiting the accumulation of frost on, and/or removing frost from said outside heat exchanger coil when the heat pump is operating in the heating mode without reversing the flow of refrigerant within, or impeding the flow of refrigerant to said inside heat exchanger coil, whereby said inside heat exchanger coil will continue to function in the condenser mode, and will continue to furnish heat to the inside of a building during the defrost cycle of either of the said outside heat exchanger coils, and whereby heat generated by one said outside heat exchanger coil during the defrost cycle of that coil will be reabsorbed into the heat pump system via the other outside heat exchanger coil and circulated through the same refrigeration circuit, in a manner that will improve the efficiency of said heat pump.

    Abstract translation: 一种通常称为电热泵的空调系统，其采用逆循环冷冻装置来在冬季用于调节建筑物内的加热空气，并在夏季用于冷却，利用一个以热交换关系设置的换热器盘管 涉及在建筑物内循环的调节空气的流动，以及与循环在建筑物外面的环境空气的热交换关系设置的两个热交换器盘管，其中每个所述热交换器盘管包括单个空调的单独的和单独的组成部分 电路连接并由一个单一的压缩机服务; 并且其中，每个所述外部热交换器盘管被设计成将蒸发器的功能与蒸发器的功能相互独立地改变为冷凝器的功能，以便抑制霜冻的积聚和/或去除霜冻 当热泵在加热模式下工作而不使制冷剂的流动反转，或妨碍制冷剂流向所述内部热交换器盘管时，所述内部热交换器盘管将继续在冷凝器模式中工作 并且将在所述外部热交换器线圈中的任一个的除霜循环期间继续向建筑物的内部供热，并且由此在该线圈的除霜循环期间由一个所述外部热交换器线圈产生的热将被再吸收到 热泵系统经由另一外部热交换器盘管并循环通过相同的制冷回路，以提高所述热泵的效率 p。

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