Carrier Corporation

Trane International Inc.

Guangyu Shen

Hui Zhai

YuHui Kuang

Shuguang Zhang

Yu Zhu

Qing Lu

Runfu Shi

Xi Feng

Jinxiang Wang

Xiangyu Gao

Liang Chang

Jian Ni

Weijuan Wang

Haijun Li

Jun Wang

Michael J Birnkrant

Liang Jie Xu

Yan Chen

Xiaohong Wang

Xingye Zhou

Lei Yu

Tingting Wang

Kai Deng

Hongsheng Liu

Fei Xie

Qing Liu

Tingcan Mi

Jingkai Weng

Jing Lei

Chunpeng Zhou

Shuang Lu

Shen Li

Keqiao Li

Jianhua Chen

Guang Zhang

Yingzheng Fu

Yuqing Du

Chungang Wang

Yuhui Kuang

A receiver, a receiver assembly and a heat pump system. The receiver includes a first pipe, a second pipe and a third pipe leading to the cavity of the receiver, wherein the first pipe, the second pipe and the third pipe connect to a first load unit, a second load unit and a cold and heat source unit, respectively.

Receiver, connection method thereof, receiver assembly and heat pump system

A heat pump system includes a compressor; an indoor heat exchanger; an outdoor heat exchanger configured as an interlaced heat exchanger having at least two refrigerant flow paths; a plurality of throttling elements; and a first type four-way valve and a second type four-way valve, with ports thereof respectively connected to the inlet and the outlet of the compressor, the indoor heat exchanger, and one of the at least two refrigerant flow paths of the outdoor heat exchanger; in a local defrosting mode, refrigerant from the outlet of the compressor flows respectively through the indoor heat exchanger and at least one of the at least two refrigerant flow paths of the outdoor heat exchanger, and then sequentially through the throttling elements, at least the other of the at least two refrigerant flow paths of the outdoor heat exchanger, and the inlet of the compressor.

Heat pump system and control method thereof

An air conditioning system including a four-way valve including a first port, a second port, a third port and a fourth port, at least the first port and the third port are fluidly isolated; a compressor, an output end and an input end of which are in communication with the first port and the third port respectively; a first evaporator, a first end of which is in communication with the third port; a second evaporator and a condenser, first ends of which are in communication with one of the second port and the fourth port respectively; wherein a second end of the condenser, a second end of the first evaporator, and a second end of the second evaporator are in communication at a first node, and a first throttling valve, a second throttling valve and a third throttling valve are respectively disposed between the condenser and the first node.

Air conditioner system

An air purification includes a body portion, having a first installation space, a second installation space and a third installation space; a positive/negative ion module, removably mounted in the first installation space and controlled to generate positive ions and/or negative ions; a plasma module, removably mounted in the second installation space and controlled to generate plasmas; and a power supply module, removably mounted in the third installation space and configured to supply power for the positive/negative ion module and the plasma module.

Air purification device

A centrifugal compressor and a refrigerating device. The centrifugal compressor includes: a shell, which has a fluid inlet and a fluid outlet; a motor assembly including a stator and a rotor, the rotor including a vertically arranged rotor shaft; a centrifugal compression mechanism, an impeller of which is connected with the rotor shaft so as to be driven by the motor assembly, wherein the centrifugal compression mechanism is arranged downstream of the fluid inlet to receive fluid, compress and pressurize the fluid, and output the pressurized fluid in a direction away from the motor assembly; and a guide member, which receives the pressurized fluid from the centrifugal compression mechanism, and which defines a flow passage alone or together with a part of the shell, wherein the flow passage is configured such that the pressurized fluid from the centrifugal compression mechanism passes through and cools the motor assembly.

Centrifugal compressor having a motor cooling passage

A heat pump system, a defrosting method for the heat pump system, and a controller. The heat pump system includes a heat exchanger assembly for exchanging heat with a fluid medium, the heat exchanger assembly comprised a first heat exchanger and a second heat exchanger arranged in parallel, the second heat exchanger being arranged upstream of the first heat exchanger in the flow direction of the fluid medium, and when the heat pump system is operating in a heating mode and the temperature and/or ambient humidity to which the heat exchanger assembly is currently exposed reach a pre-set value, the second heat exchanger and the first heat exchanger function as a condenser and an evaporator, respectively.

Heat pump system, defrosting method for a heat pump system, and controller

A heat pump system includes a first unit; a second unit connected to a first flow path of the first unit; and a third unit connected to a second flow path of the first unit and connected to the second unit. The heat pump system can operate in a cooling and water heating mode and a heating and water heating mode, wherein, in the cooling and water heating mode, the heat pump system is configured to switch a switching assembly to a first position and connect the at least one first heat exchangers and the second heat exchanger in series; in the heating and water heating mode, the heat pump system is configured to switch the switching assembly to a second position and connect the second heat exchanger and the at least one third heat exchangers in parallel.

Heat pump system

The present application provides an outdoor unit and a heat pump system. The outdoor unit includes a compressor, a valve assembly, an outdoor heat exchanger, a first pipeline port and a second pipeline port; a first branch that connects the valve assembly and the first pipeline port, the first branch being provided with the outdoor heat exchanger and a first switch valve assembly; a second branch that connects the mode switch valve assembly and the first pipeline port, wherein the second branch is provided with a second switch valve assembly; a third branch that connects the second pipeline port and the refrigerant inlet of the outdoor heat exchanger. The first and second switch valve assemblies control the on and off of the first branch and the second branch so that the refrigerant flows through the refrigerant inlet and the refrigerant outlet of the outdoor heat exchanger.

Outdoor unit and heat pump system

A heat exchanger, a heat pump system, and a heat exchange method. The heat exchanger operates in a cooling mode or a heating mode. A heat exchange medium flows through via a first flow path within the heat exchanger in the cooling mode, and flows through via a second flow path within the heat exchanger in the heating mode. A diversion component is disposed within the heat exchanger. The diversion component is configured such that the length of the first flow path is different from the length of the second flow path; moreover, a partial segment of the first flow path and a partial segment of the second flow path overlap with each other, and flow directions of the heat exchange medium therein are identical.

Heat exchanger, heat pump system and method for heat exchange

An apparatus and a method for detecting refrigerant leakage in an air source heat pump system. The method for detecting refrigerant leakage in an air source heat pump system includes the following steps in a cooling mode: S: obtaining a running parameter of an air source heat pump system, wherein the running parameter at least includes a compressor rotational speed; S: comparing the running parameter with a preset running parameter range; S: updating a cumulative score when the running parameter falls within the preset running parameter range; and S: when the cumulative score exceeds a predetermined cumulative score, determining that refrigerant leakage occurs, and when the cumulative score does not exceed the predetermined cumulative score, return to step S

Detection apparatus and method for refrigerant leakage of air source heat pump system

A heat cycle system and a control method. The heat cycle system includes: driving devices, one or a plurality of outdoor units, and a plurality of indoor units, which are connected by pipelines; a bypass pipeline for the plurality of indoor units, a bypass valve being disposed in the bypass pipeline; a pressure sensor that senses a pressure difference &#x394;Pacross the plurality of outdoor units; and a controller that is preset with a pressure difference set value &#x394;P, wherein the controller calculates a pressure offset parameter &#x394;P=&#x394;P&#x2212;&#x394;Pand adjusts an opening degree of the bypass valve based on the pressure offset parameter &#x394;P so that the pressure offset parameter &#x394;P approaches zero, and wherein the controller is preset with a first pressure offset threshold P, and the controller is configured such that closed indoor units enter a bypass mode one by one when &#x394;P&#x3e;P, until &#x394;P&#x2264;P.

Thermal cycling system and control method of the thermal cycling system

An air conditioning system and a control method thereof. The air conditioning system includes: a plurality of indoor units connected in parallel; a plurality of outdoor units connected in parallel; and a coolant circulation circuit which circulates coolant through each of the indoor units connected in parallel and each of the outdoor units connected in parallel respectively, and which exchanges heat with each of the indoor units and each of the outdoor units; wherein the air conditioning system further includes a controller which, based on a number of actively operating indoor units, a total number of the indoor units and a total number of the outdoor units, defines an upper limit of a number of actively operating outdoor units, so that the flow rate of the coolant flowing through the actively operating outdoor units is not lower than a preset flow rate.

Air conditioning system and control method therof

The present invention provides a heat pump system which comprises a compressor (), a mode switch valve assembly (), a mode switch flow path, and a first heat exchanger, a second heat exchanger and a heat recovery heat exchanger respectively connected between the mode switch valve assembly and the mode switch flow path, wherein the mode switch flow path is provided with a first flow path (), a second flow path () and a third flow path () which converge at an intersection point, and at least the first flow path and the second flow path are respectively provided with a throttling section (), and the first flow path, the second flow path and the third flow path are controllably switched on/off to realize different function modes. Therefore, a heat pump unit having a heat recovery function is provided, which has advantages of simple structure and high operational reliability, etc.

Heat pump and control method thereof

A heat exchange unit, a heat exchange system, and a method of determining the failure of a control valve in the heat exchange system. The heat exchange unit includes: a first flow path; and a second flow path at least partially located within the first flow path to exchange heat with the first flow path, one of the inlet and the outlet of the second flow path being connected to the main flow path of the external heat exchange system through a control valve; a first temperature sensor at the inlet of the first flow path to sense a first temperature T; a second temperature sensor at the outlet of the first flow path or the second flow path within the first flow path to sense a second temperature T; and a processor configured to determine whether the control valve fails.

Growing community of inventors

Shanghai, China

Guangyu Shen