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1. 发明公开

US20240200889A1 HEAT EXCHANGER AND AIR CONDITIONING SYSTEM HAVING SAME 审中-公开
公开(公告)号：US20240200889A1
公开(公告)日：2024-06-20
申请号：US18541864
申请日：2023-12-15
申请人： Danfoss A/S
发明人： Jiaqi XU , Yanxing LI , Huan JIN , Yubao LIU , Jing YANG , Arturo RIOS
IPC分类号： F28F9/02
CPC分类号： F28F9/0229
摘要： A heat exchanger and an air conditioning system having same, the heat exchanger including: a first manifold and a second manifold disposed at one and the same side of the heat exchanger; and multiple heat exchange tubes, each heat exchange tube including: two ends, the two ends respectively being a first end and a second end, the first end and second end being respectively connected to and in fluid communication with the first manifold and the second manifold; and multiple heat exchange parts, the multiple heat exchange parts including a first heat exchange part and a second heat exchange part, the first heat exchange part and second heat exchange part being respectively connected to and in fluid communication with the first end and the second end; in a lengthwise direction of the first manifold or second manifold, the ends of the multiple heat exchange tubes includes at least one pair of adjacently arranged first ends and/or at least one pair of adjacently arranged second ends. Heat exchange performance is thereby improved.

2. 发明公开

US20240175429A1 Control plate of a hydraulic machine and hydraulic machine 审中-公开
公开(公告)号：US20240175429A1
公开(公告)日：2024-05-30
申请号：US18517151
申请日：2023-11-22
申请人： Danfoss A/S
发明人： Stig Kildegaard Andersen , Poul Erik Hansen , Olaf Worm
IPC分类号： F04B1/303 , F04B1/2042
CPC分类号： F04B1/303 , F04B1/2042
摘要： A control plate (18) of a hydraulic machine includes a body (21), an arrangement of openings (22, 23), and a contact face (24). Means should be provided to operate a hydraulic machine with a low noise level. To this end the body (21) is made of a flat plastic material.

3. 发明授权

US11994136B2 Power electronics cooling arrangement 有权
公开(公告)号：US11994136B2
公开(公告)日：2024-05-28
申请号：US17618910
申请日：2020-07-31
申请人： DANFOSS A/S
发明人： Lin Xiang Sun , Brandon Keith Pritchard
IPC分类号： F04D27/00 , F04D17/12 , F24F1/24 , F25B31/00 , H02K11/25
CPC分类号： F04D17/122 , F04D27/007 , F24F1/24 , F25B31/008 , H02K11/25 , F25B2700/1933
摘要： A refrigerant compressor includes, among other things, a first stage and a second stage downstream of the first stage, and a cooling line configured to cool power electronics. The cooling line is configured to be switched between a first mode and a second mode. The first mode is configured to dump refrigerant between the first stage and the second stage, and the second mode is configured to dump refrigerant upstream of the first stage.

4. 发明授权

US11982496B2 Plate kind heat exchanger with sealed inlet channel 有权
公开(公告)号：US11982496B2
公开(公告)日：2024-05-14
申请号：US17752929
申请日：2022-05-25
申请人： Danfoss A/S
发明人： Helge Nielsen
IPC分类号： F28D9/00 , F28F3/10 , F28D21/00
CPC分类号： F28D9/005 , F28F3/10 , F28D2021/0071 , F28F2230/00 , F28F2275/14
摘要： A plate kind heat exchanger (1) has a plurality of stacked plates (2) forming flow paths for heat exchanging fluids there between, a first inlet channel being fluidly connected to inlets of a first set of flow paths, a second inlet channel being fluidly connected to inlets of a second set of flow paths, a first outlet channel being fluidly connected to outlets of the first set of flow paths, and a second outlet channel being fluidly connected to outlets of the second set of flow paths. The first inlet channel is provided with a stack (15) of rings (5) forming fluid passages towards the inlets of the first set of flow paths. Each ring (5) has a first rigid shell member (6) and a second rigid shell member (7), the first rigid shell member (6) and/or the second rigid shell member (7) defining a groove (9) providing fluid passage from the first inlet channel to one of the flow paths of the first set of flow paths, and a sealing member (8) formed from a compressible material, the sealing member (8) being positioned between the first rigid shell member (6) and the second rigid shell member (7). The stack of rings (15) is subjected to a force which presses the rings (5) towards each other and compresses the sealing members (8) of the rings (5), thereby providing sealing towards the flow paths of the second set of flow paths.

5. 发明公开

US20240142021A1 ACTIVE BALANCING VALVE FOR A REFRIGERATION AND/OR AIR-CONDITIONING APPLICATION 审中-公开
公开(公告)号：US20240142021A1
公开(公告)日：2024-05-02
申请号：US18548159
申请日：2021-09-14
申请人： DANFOSS A/S
发明人： Sigurd LARSEN , Jens Boesen PAWLIK , Clemens FOCK
IPC分类号： F16K39/02 , F16K1/36
CPC分类号： F16K39/024 , F16K1/36 , F25B41/325
摘要： An active balancing valve for a refrigeration and/or air-conditioning application having a valve housing with an inlet orifice, an outlet orifice and a mounting portion, a main valve element with a main pressure balance orifice and a control element at least partially defining a pressure balance passage. Each element is slidable inside the valve housing and comprises a control surface for controlling a fluid flow between the inlet orifice and the outlet orifice. The control element closes the main pressure balance orifice of the main valve element in a closed state of the valve.

6. 发明公开

US20240125418A1 BLIND MATE COUPLING WITH A SELF CENTERING MECHANISM 审中-公开
公开(公告)号：US20240125418A1
公开(公告)日：2024-04-18
申请号：US18547968
申请日：2022-02-24
申请人： Danfoss A/S
发明人： Amit Ramesh SHENDE
IPC分类号： F16L37/52 , F16L37/35
CPC分类号： F16L37/52 , F16L37/35
摘要： The present disclosure relates generally to a coupling assembly made up of a male fluid coupler and a female fluid coupler for a fluid line. The male and female fluid couplers are closed to flow in the uncoupled state and are open to flow when coupled. The male fluid coupler can include an alignment compensation arrangement that can adjust for any initial misalignment between the male and female fluid couplers. The alignment compensation arrangement can function as a universal connection joint to allow the male fluid coupler to universally pivot and move radially.

7. 发明授权

US11959676B2 Method for controlling a vapour compression system at a reduced suction pressure 有权
公开(公告)号：US11959676B2
公开(公告)日：2024-04-16
申请号：US17278738
申请日：2019-09-12
申请人： Danfoss A/S
发明人： Jan Prins , Lars Finn Sloth Larsen
IPC分类号： F25B49/02
CPC分类号： F25B49/02 , F25B2400/075 , F25B2400/13 , F25B2600/025 , F25B2600/0272 , F25B2600/2523
摘要： A method for controlling a vapour compression system (1) including a compressor unit (2) including one or more compressors (3, 12), a heat rejecting heat exchanger (4), a receiver (6), an expansion device (7) and an evaporator (8) arranged in a refrigerant path. A pressure value indicating a pressure prevailing inside the receiver (6) is obtained, and the obtained pressure value is compared to a first threshold pressure value. In the case that the obtained pressure value is below the first threshold pressure value, the compressor(s) (3, 12) of the compressor unit (2) are controlled in order to reduce a suction pressure of the vapour compression system (1).

8. 发明授权

US11939514B2 Self-healing water-swellable hydraulic seal 有权
公开(公告)号：US11939514B2
公开(公告)日：2024-03-26
申请号：US17546756
申请日：2021-12-09
申请人： Danfoss A/S
发明人： James Patrick Barnhouse , Aaron David Clark , Kelly Ann Williams
IPC分类号： C08L5/00 , C08L9/02 , C08L13/00 , C08L15/00 , C08L97/02 , C09K3/10 , C09K3/12 , C08L5/06
CPC分类号： C09K3/1028 , C08L5/00 , C08L9/02 , C08L13/00 , C08L15/00 , C08L97/02 , C09K3/10 , C09K3/12 , C08L5/06 , C08L2201/08 , C08L2205/06 , C08L2205/16 , C09K2003/104 , C09K2003/1053 , C09K2200/0612 , C09K2200/0692
摘要： A self-healing hydraulic seal is provided. The self-healing hydraulic seal is prepared from a water-swellable elastomeric composition comprising a base polymer and a plant-based polysaccharide.

9. 发明授权

US11920842B2 Method for controlling a vapour compression system based on estimated flow 有权
公开(公告)号：US11920842B2
公开(公告)日：2024-03-05
申请号：US17278723
申请日：2019-09-13
申请人： Danfoss A/S
发明人： Jan Prins , Lars Finn Sloth Larsen
IPC分类号： F25B49/02
CPC分类号： F25B49/02 , F25B2309/061 , F25B2400/075 , F25B2400/13 , F25B2600/0251 , F25B2600/2509
摘要： A method for controlling a vapour compression system (1) including a compressor unit (2) including at least two compressors (3, 12), a heat rejecting heat exchanger (4), a receiver (6), an expansion device (7) and an evaporator (8) arranged in a refrigerant path is disclosed. At least one of the compressors is a main compressor (3) being fluidly connected to an outlet of the evaporator (8) and at least one of the compressors is a receiver compressor (12) being fluidly connected to a gaseous outlet (10) of the receiver (6). A flow of vapour entering the receiver (6), such as a mass flow of vapour entering the receiver (6) is estimated and compared to a first threshold value. In the case that the estimated flow is above the first threshold value, a pressure prevailing inside the receiver (6) is controlled by operating the receiver compressor (12).

10. 发明授权

US11920573B2 Pressure exchanger 有权
公开(公告)号：US11920573B2
公开(公告)日：2024-03-05
申请号：US17582149
申请日：2022-01-24
申请人： Danfoss A/S
发明人： Poul Erik Hansen , Tommi Kolb
IPC分类号： F04B1/2064 , F04B1/2035 , F04F13/00
CPC分类号： F04B1/2064 , F04B1/2035 , F04F13/00
摘要： A pressure exchanger (1) including a housing (2), a drive shaft (3) and a cylinder drum (4) rotatably arranged in the housing (2) is described, the cylinder drum (4) including two front faces and at least one cylinder (5) between the front faces, wherein the housing (2) includes a port flange (7, 8) at each end of the cylinder drum (4) and at least at one end of the cylinder drum (4) a pressure shoe (18) is arranged between the cylinder drum (4) and the port flange of this end. Such a pressure exchanger should be operated in a cost-effective manner. To this end an adjustable stop arrangement (19) is arranged between the pressure shoe (18) and the cylinder drum (4).

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