公开(公告)号：US12050032B2

公开(公告)日：2024-07-30

申请号：US18452124

申请日：2023-08-18

申请人： Carrier Corporation

发明人： Anthony S. Molavi

IPC分类号： F25B1/047 ,  F04B39/00 ,  F04B53/00 ,  F04C29/06 ,  F16L9/21 ,  F16L55/033 ,  F24F13/24 ,  F25B1/04 ,  F01N1/08 ,  F01N1/24

CPC分类号： F25B1/04 ,  F16L9/21 ,  F16L55/0335 ,  F01N1/08 ,  F01N1/24 ,  F01N2470/24 ,  F01N2490/15 ,  F04C29/063 ,  F24F2013/242 ,  F25B2339/047 ,  F25B2500/12

摘要： Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case having a fluid inlet; a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet; the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.

公开(公告)号：US11535781B2

公开(公告)日：2022-12-27

申请号：US16955565

申请日：2018-12-18

申请人： DAIKIN INDUSTRIES, LTD.

发明人： Eiji Kumakura ,  Takuro Yamada ,  Atsushi Yoshimi ,  Ikuhiro Iwata ,  Mitsushi Itano ,  Daisuke Karube ,  Yuuki Yotsumoto ,  Kazuhiro Takahashi ,  Tatsuya Takakuwa ,  Yuzo Komatsu ,  Shun Ohkubo ,  Keisuke Ohtsuka ,  Yoshinari Asano ,  Keiji Aota ,  Yuuichi Yanagi ,  Yoshikazu Nakao ,  Takeo Abe ,  Yumi Toda ,  Tetsushi Tsuda

IPC分类号： C09K5/04 ,  F25B13/00 ,  F25B29/00 ,  F25B31/00 ,  F25B49/02 ,  F24H4/02 ,  F25B41/00 ,  F24F1/0059 ,  F24F1/24 ,  F24F13/30 ,  F24F1/0067 ,  F24F1/0063 ,  F24F3/052 ,  F25B7/00 ,  F25B39/00 ,  F25B39/02 ,  F24F1/14 ,  F24F1/32 ,  F24F1/34 ,  F24F1/38 ,  F25B9/00 ,  F25B1/00 ,  F25B31/02 ,  F24F5/00 ,  F24F11/88 ,  F25B1/04 ,  F24H1/00 ,  F25B21/00 ,  F25B41/34 ,  H02K7/14

摘要： A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

公开(公告)号：US20220268278A1

公开(公告)日：2022-08-25

申请号：US17744021

申请日：2022-05-13

申请人： Guangdong Midea Environmental Technologies Corporation Limited

发明人： Yuantie ZHAO ,  Xiaolei LI ,  Bo JIANG ,  Xijin HUANG ,  Junbo LIU ,  Canyu QIAN ,  Baiying HUANG

IPC分类号： F04C18/02 ,  F25B1/04

摘要： A compressor and a refrigeration device are provided. The compressor has a casing and a main frame disposed in the casing. The main frame has a guide structure configured to position the main frame. By coordination between the guide structure and a tooling, the process for positioning the main frame can be effectively simplified, the efficiency of positioning the main frame can be improved, and the assembly operation by workers can be facilitated.

公开(公告)号：US11421292B2

公开(公告)日：2022-08-23

申请号：US16493236

申请日：2018-01-11

申请人： LG ELECTRONICS INC.

发明人： Seokpyo Hong

IPC分类号： C21D6/00 ,  F24F1/32 ,  F25B9/00 ,  F25B41/00 ,  F25B1/04 ,  F25B41/20

摘要： The present invention relates to an air conditioner. The air conditioner according to the present embodiment has a refrigeration capacity of 11 kW to 16 kW, inclusive, and uses R32 as a refrigerant circulating therein, and since a refrigerant pipe therein is made of a ductile stainless steel material having 1% or less of a delta-ferrite matrix structure with respect to the grain size area thereof, the refrigerant pipe can maintain strength and hardness as good as or better than those of a copper pipe, while also maintaining good processability.

公开(公告)号：US20220243107A1

公开(公告)日：2022-08-04

申请号：US17613839

申请日：2020-06-18

申请人： Gree Electric Appliances, Inc. of Zhuhai

发明人： Youlin ZHANG ,  Yancui YU ,  Huan ZHAO ,  Peiyu LEI ,  Youxuan LIANG ,  Yujie HUANG

IPC分类号： C09K5/04 ,  F25B1/04

摘要： Provided is a heat transfer composition, which is characterized in that the heat transfer composition comprises the following three components: 1,1,1,2-tetrafluoroethane (R134a) with a mass ratio of 28%-46%, 2,3,3,3-tetrafluoropropene (R1234yf) with a mass ratio of 33%-71%, and trans 1,3,3,3-tetrafluoropropene (R1234ze(E)) with a mass ratio of I %-23%. The described heat transfer composition which replaces R134a not only has the environmentally friendly features of having low GWP and zero ODP, but also has excellent thermal performance. When applied in a centrifugal chiller, the volumetric refrigeration capacity and energy efficiency are equivalent to those of a centrifugal unit using an R134a refrigerant, and the slip in temperature is small; thus, the present application may become a heat transfer composition to replace R134a.

公开(公告)号：US11371497B2

公开(公告)日：2022-06-28

申请号：US16743794

申请日：2020-01-15

申请人： Emerson Climate Technologies, Inc.

发明人： Kirill M. Ignatiev ,  Robert C. Stover ,  Michael M. Perevozchikov

IPC分类号： F04B39/06 ,  F25B6/04 ,  F25B40/04 ,  F25B31/00 ,  F25B6/02 ,  F25B1/10 ,  F25B40/00 ,  F04C2/344 ,  F04C18/02 ,  F25B41/20 ,  F25B43/02 ,  F04C29/04 ,  F04C29/00 ,  F04C29/12 ,  F25B1/04 ,  F25B13/00 ,  F25B31/02 ,  F25B40/06

摘要： A compressor may include a shell, a first scroll, and a second scroll. The shell may include a first inlet, a second inlet, and an outlet. The first scroll may include a first end plate and a first spiral wrap. The second scroll may include a second end plate and a second spiral wrap, the first and second spiral wraps cooperating to define a series of moving compression pockets therebetween. The moving compression pockets decrease in volume as the moving compression pockets move from a radially outer position to a radially inner position. The moving compression pockets may receive working fluid from the first inlet at the radially outer position and provide working fluid to the outlet at the radially inner position. The second end plate may include a fluid cavity receiving working fluid from the second inlet and fluidly isolated from working fluid within the moving compression pockets.

公开(公告)号：US20220154719A1

公开(公告)日：2022-05-19

申请号：US17602816

申请日：2019-06-28

申请人： Mitsubishi Electric Corporation

发明人： Tetsuro HIRAMI ,  Tomokazu MATSUI ,  Yuji TAKAMURA

IPC分类号： F04C29/02 ,  F25B1/04 ,  F04C18/02 ,  F04C18/10

摘要： A scroll compressor includes an orbiting bedplate. The orbiting bedplate has: an oil passage through which oil supplied from an oil supply passage flows outward in a radial direction of the orbiting bedplate; a lap-side oil supply hole that causes the oil passage to communicate with a lap-formation surface of the orbiting lap at which the orbiting lap is formed; and a thrust-surface-side oil supply hole that causes the oil passage to communicate with a thrust surface of the orbiting bedplate that is opposite to the lap-formation surface of the orbiting bedplate. In the oil passage, an opening and closing mechanism is provided. The opening and closing mechanism closes the thrust-surface-side oil supply hole when the pressure of oil that is drawn from an oil sump by an oil pump and supplied into the oil passage is low, and opens the thrust-surface-side oil supply hole when the pressure of the oil is high.

公开(公告)号：US11326786B2

公开(公告)日：2022-05-10

申请号：US16210783

申请日：2018-12-05

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Mun Sub Kim ,  Hyeong Joon Seo ,  Hyeong Jin Lee ,  Du Han Jung

IPC分类号： F24F1/26 ,  F24F13/00 ,  F25B1/04 ,  F25B13/00 ,  F24F13/02 ,  F25B41/40 ,  F25B41/20

摘要： An air conditioner comprises a compressor configured to have an inlet, through which a refrigerant is sucked in, the sucked refrigerant being compressed by the compressor, and an outlet, through which the compressed refrigerant is discharged, a four-way valve configured to switch flow paths in cooling and heating operations, the four-way valve having a valve body, a D port protruding from the valve body in a first direction to be connected to the outlet, and an S port 26 protruding from the valve body in a second direction, which is opposite to the first direction, to be connected to the inlet, and a compressor pipe having a discharging pipe to connect the outlet and the D port and a sucking pipe to connect the inlet and the S port, one of the discharging pipe and the sucking pipe has two curved portions and the other has one curved portion.

公开(公告)号：US11300341B2

公开(公告)日：2022-04-12

申请号：US16620206

申请日：2018-06-07

申请人： Carrier Corporation

发明人： Raymond L. Senf, Jr.

IPC分类号： F25B49/02 ,  F25B1/047 ,  F25B41/22 ,  F25B1/04 ,  F25B41/385

摘要： A method of operating a refrigeration system includes initiating a compressor shutdown operation, determining a difference in a saturation temperature at a port of a compressor of the refrigeration system and an ambient temperature and comparing the difference in the saturation temperature and ambient temperature with a threshold. If the difference in the saturation temperature and ambient temperature is less than or equal to the threshold, a pump down operation is performed and if the difference in the saturation temperature and ambient temperature exceeds the threshold, a compressor shutdown operation is completed.

公开(公告)号：US11156231B2

公开(公告)日：2021-10-26

申请号：US15934652

申请日：2018-03-23

申请人： HONEYWELL INTERNATIONAL INC.

发明人： Michael Leighty ,  Dennis Mikio Morita ,  Stephen L White

IPC分类号： F04D29/58 ,  F04D17/12 ,  F25B31/00 ,  F25B1/04 ,  F04D29/057 ,  B64D13/06

摘要： A vapor cycle compressor includes a motor section and a compression section operatively engaged with the motor section. A refrigerant path is in the motor section and in the compression section. The refrigerant path includes: a compression refrigerant path, for a single phase compression refrigerant, in the compression section; an inner rotor shaft refrigerant path, for a single phase inner rotor shaft refrigerant, in the compression section and in the motor section; and a stator refrigerant path, for a two phase stator refrigerant, in the motor section.