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公开(公告)号：US11137180B1
公开(公告)日：2021-10-05
申请号：US16929833
申请日：2020-07-15
发明人： Jun Ouyang , Long Zhang
摘要： A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a first compressor having a first capacity, a second compressor having a second capacity, a condenser, an expansion device, and an evaporator fluidly connected. The first compressor and the second compressor are arranged in parallel. The first compressor includes a first lubricant sump. The second compressor includes a second lubricant sump. The first lubricant sump is fluidly connected to the second lubricant sump via a lubricant transfer conduit. A flow restrictor is disposed in the lubricant transfer conduit. The flow restrictor is configured to reduce a refrigerant flow between the first compressor and the second compressor.
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公开(公告)号：US10156368B2
公开(公告)日：2018-12-18
申请号：US15758258
申请日：2015-09-25
发明人： Guangwei Rong , Pingsen Duan , Qing Yang , Weifeng Han
摘要： A fixing device includes a gasket and a clip. The clip includes a clip upper portion, a clip body portion, and a clip leg portion. The clip upper portion has a width wider than the clip body portion and the clip leg portion. The clip upper portion, the clip body portion, and the clip leg portion are connected to form an open loop facing downward. The gasket includes a gasket upper portion, a gasket intermediate portion, and a gasket base portion forming an “A” shape. The gasket is compressible. The clip upper portion and the clip body portion define two receiving areas evenly distributed at two inner sides of the clip. The gasket is evenly and simultaneously compressed toward the two receiving areas of the clip while the clip moves downward without tilting or slanting.
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公开(公告)号：US20180058763A1
公开(公告)日：2018-03-01
申请号：US15686924
申请日：2017-08-25
发明人： Dongbin WEI
IPC分类号： F28D7/16
摘要： An inward gas/liquid distribution structure used in microchannel heat exchangers is disclosed. The inward gas/liquid distribution structure can help optimizing refrigerant distribution for a microchannel heat exchanger with long distribution pipe or a microchannel heat exchanger having significant wind field differences. The inward gas/liquid distribution structure includes an inlet header component. The inlet header component has n inlets that are configured to allow gas/liquid to enter the inlet header component, and “n” is an integer that is greater than or equal to 2. The inward gas/liquid distribution structure also includes m distribution components. The m distribution components are located in the inlet header component and connected to the n inlets, respectively. In an example, the number m equals to the number n.
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公开(公告)号：US20160069598A1
公开(公告)日：2016-03-10
申请号：US14888854
申请日：2013-05-03
发明人： Zhenhai LV , Limin ZHANG , Wenyong CHEN
CPC分类号： F25B43/02 , F25B1/047 , F25B31/004 , F25B2339/047 , F25B2400/05 , F25B2600/25
摘要： Methods, systems, and apparatuses are described to help manage oil return such as in a chiller system of a HVAC system. A refrigerant/oil mixture can be directed out of the evaporator into an oil return heat exchanger that is configured to help vaporize a refrigerant portion of the refrigerant/oil mixture. Superheat refrigerant vapor can be directed from a condenser into the oil return heat exchanger as the heat energy to vaporize the refrigerant portion in the refrigerant/oil mixture. The oil return heat exchanger can be positioned lower than the evaporator so that gravity can help the refrigerant/oil mixture to flow into the oil return heat exchanger.
摘要翻译： 描述了方法，系统和装置以帮助管理回油，例如在HVAC系统的冷却器系统中。 制冷剂/油混合物可以从蒸发器引导到回油热交换器中，该换热器被构造成有助于蒸发制冷剂/油混合物的制冷剂部分。 过热制冷剂蒸汽可以从冷凝器引导到回油热交换器中，作为使制冷剂/油混合物中的制冷剂部分蒸发的热能。 回油热交换器可以位于比蒸发器低的位置，以便重力可以帮助制冷剂/油混合物流入回油换热器。
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公开(公告)号：US20240102748A1
公开(公告)日：2024-03-28
申请号：US18013733
申请日：2022-09-27
摘要： A multi-coil microchannel heat exchanger includes a first coil including a first inlet header, a first outlet header and first microchannel tubes; a second coil including a second inlet header, a second outlet header and second microchannel tubes; a first inlet connector fluidly connected to the first inlet header; a first outlet connector fluidly connected to the first outlet header; a second inlet connector fluidly connected to the second inlet header; and a second outlet connector fluidly connected to the second outlet header. The first coil and the second coil are arranged successively along the length direction of the multi-coil microchannel heat exchanger. The multi-coil microchannel heat exchanger includes a first side and a second side along the length direction, the first inlet connector, the first outlet connector, the second inlet connector and the second outlet connector are all located at the first side.
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公开(公告)号：US11649996B2
公开(公告)日：2023-05-16
申请号：US17492860
申请日：2021-10-04
发明人： Jun Ouyang , Long Zhang
CPC分类号： F25B31/02 , F25B31/002 , F25B39/00 , F25B41/31 , F25B41/40 , F25B2400/0751
摘要： A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a first compressor having a first capacity, a second compressor having a second capacity, a condenser, an expansion device, and an evaporator fluidly connected. The first compressor and the second compressor are arranged in parallel. The first compressor includes a first lubricant sump. The second compressor includes a second lubricant sump. The first lubricant sump is fluidly connected to the second lubricant sump via a lubricant transfer conduit. A flow restrictor is disposed in the lubricant transfer conduit. The flow restrictor is configured to reduce a refrigerant flow between the first compressor and the second compressor.
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公开(公告)号：US20220096703A1
公开(公告)日：2022-03-31
申请号：US17090626
申请日：2020-11-05
发明人： Xuefeng Chen , Bang Yu Wang , Qing Hao Wang , De Bin Cao
摘要： A centrifugal fan for a heating, ventilation, air conditioning, and refrigeration (HVACR) system is disclosed. The centrifugal fan includes a volute housing having an inner surface and a curved inlet shroud. The volute housing defines an air outlet. The curved inlet shroud defines an air inlet. The air inlet has an inlet airflow cross-sectional area that lies substantially perpendicular to an outlet airflow cross-sectional area of the air outlet. The centrifugal fan also includes an impeller mounted for rotation about a rotational axis within the volute housing. The impeller has a plurality of fan blades. The plurality of fan blades has an outer surface. The centrifugal fan further includes a light source. The inner surface of the volute housing and the outer surface of the plurality of fan blades includes a photocatalyst layer. The light source is configured to emit light on the photocatalyst layer.
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公开(公告)号：US20220026122A1
公开(公告)日：2022-01-27
申请号：US17492860
申请日：2021-10-04
发明人： Jun Ouyang , Long Zhang
摘要： A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a first compressor having a first capacity, a second compressor having a second capacity, a condenser, an expansion device, and an evaporator fluidly connected. The first compressor and the second compressor are arranged in parallel. The first compressor includes a first lubricant sump. The second compressor includes a second lubricant sump. The first lubricant sump is fluidly connected to the second lubricant sump via a lubricant transfer conduit. A flow restrictor is disposed in the lubricant transfer conduit. The flow restrictor is configured to reduce a refrigerant flow between the first compressor and the second compressor.
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公开(公告)号：US10234215B2
公开(公告)日：2019-03-19
申请号：US15511177
申请日：2014-09-15
发明人： Wei Guang Rong , Bin Bin Chen , Yong Zhang
摘要： A mounting clip that can be used to mount a heat exchanger to a housing, for example, in a HVAC system is disclosed. The mounting clip may include a receiver portion configured to receive, for example, an end portion of the heat exchanger. The mounting clip may also include a clip portion configured to secure the mounting clip to the housing. The mounting clip can be used to mount the heat exchanger to the housing relatively easily, reducing the manufacturing cost and time of the HVAC system.
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公开(公告)号：US20180245803A1
公开(公告)日：2018-08-30
申请号：US15758258
申请日：2015-09-25
发明人： Guangwei RONG , Pingsen DUAN , Qing YANG , Weifeng HAN
CPC分类号： F24F1/16 , F16B2/22 , F16B5/0685 , F28D1/05366 , F28D2001/0273 , F28D2021/0068 , F28F9/002 , F28F9/02 , F28F2275/08 , F28F2275/085
摘要： A fixing device includes a gasket and a clip. The clip includes a clip upper portion, a clip body portion, and a clip leg portion. The clip upper portion has a width wider than the clip body portion and the clip leg portion. The clip upper portion, the clip body portion, and the clip leg portion are connected to form an open loop facing downward. The gasket includes a gasket upper portion, a gasket intermediate portion, and a gasket base portion forming an “A” shape. The gasket is compressible. The clip upper portion and the clip body portion define two receiving areas evenly distributed at two inner sides of the clip. The gasket is evenly and simultaneously compressed toward the two receiving areas of the clip while the clip moves downward without tilting or slanting.
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