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公开(公告)号：US20240060660A1
公开(公告)日：2024-02-22
申请号：US18267673
申请日：2021-12-17
IPC分类号： F24F1/0071 , F24F13/22 , F25B39/02 , F24F8/22
CPC分类号： F24F1/0071 , F24F13/222 , F25B39/02 , F24F8/22 , F24F2013/228
摘要： An evaporator unit for an air conditioning system (1), the unit comprising an evaporator coil (7), a sensor (12) in to detect the liquid level in a reservoir and a pump for pumping condensate from the housing. At least one UV LED (6,8) is arranged to radiate light onto the evaporator coil (7) and/or the sensor (12). An LED driver (13) supplies electrical power to the LEDs. A single electrical power connection (14) is connectable to a mains power source to supply mains power to the pump; wherein the LED driver (13) is connected to the electrical power connection supplying power to the pump.
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公开(公告)号：US11598335B2
公开(公告)日：2023-03-07
申请号：US16632264
申请日：2018-07-11
摘要： A rotary pump comprising a housing (1) defining an annular chamber with inlet and outlet ports (12;11), a flexible annular diaphragm (3) forming one side of the chamber spaced opposite an annular wall of the housing (1), and a partition (13) extending across the chamber. The diaphragm (3) comprises an outer surface which engages the annular wall of the housing (1), and an inner surface opposite the first surface, wherein the outer surface is configured to be pressed progressively against the opposite wall of the housing (1), by a rotating means, to force fluid around the chamber. The rotary pump also comprises a reinforcement ring (4) surrounding the rotating means, and which comprises an embedded portion (30) embedded in an inner portion of a central region of the diaphragm (3), and a support portion (34) having a radially outwardly facing surface (35) which faces and supports the inner surface of the diaphragm (3) adjacent to the reinforcement ring (4) during operation of the rotary pump.
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公开(公告)号：US20220026256A1
公开(公告)日：2022-01-27
申请号：US17312303
申请日：2019-12-12
发明人： King HO , William E. SHEPHERD
IPC分类号： G01F23/26
摘要： A capacitive liquid level sensor (1). The sensor comprises a sensor body in the form a tongue with a freely depending portion (3) extending to a distal tip (6) at its lowermost end. A set of spaced capacitive electrodes (7) extend along the tongue towards the distal tip. In use, when the distal tip (6) of the tongue is immersed in a body of liquid, the capacitance between the electrodes (7) changes depending on the depth of the body of liquid. The width of the tongue increases in the downward direction at least for part of the bottom half of the freely depending part of the tongue.
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公开(公告)号：US11976958B2
公开(公告)日：2024-05-07
申请号：US17312303
申请日：2019-12-12
发明人： King Ho , William E. Shepherd
IPC分类号： G01F23/26 , G01F23/263
CPC分类号： G01F23/268 , G01F23/266
摘要： A capacitive liquid level sensor (1). The sensor comprises a sensor body in the form a tongue with a freely depending portion (3) extending to a distal tip (6) at its lowermost end. A set of spaced capacitive electrodes (7) extend along the tongue towards the distal tip. In use, when the distal tip (6) of the tongue is immersed in a body of liquid, the capacitance between the electrodes (7) changes depending on the depth of the body of liquid. The width of the tongue increases in the downward direction at least for part of the bottom half of the freely depending part of the tongue.
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公开(公告)号：US20230341147A1
公开(公告)日：2023-10-26
申请号：US18027271
申请日：2021-09-20
发明人： Michael COUGHLAN , Bill SHEPHERD
CPC分类号： F24F13/222 , F24F11/70 , F25D21/14
摘要： A condensate tray assembly for use below a condensate generating appliance, particularly a refrigeration unit. The assembly comprises a tray (1) with an inlet (3A) and an outlet (3) towards the bottom of the tray. A self-priming pump (5) is connected to the outlet for pumping liquid from the tray. A sensor (12) within the tray determines the rate of change of the depth of liquid. A control system (14) receives an input from the sensor (12) to control the pump (5) to pump liquid from the tray and to turn off the pump based on the rate of reduction of the depth of liquid in the tray. The invention also extends to a method of operating the pump.
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公开(公告)号：US11499551B2
公开(公告)日：2022-11-15
申请号：US16632269
申请日：2018-07-11
摘要： A rotary pump comprising a housing (1) defining an annular chamber with inlet and outlet ports (12;11) spaced apart around the chamber, a flexible annular diaphragm (3) forming one side of the chamber spaced opposite an annular wall of the housing (1), the diaphragm (3) being sealed at its edges to the housing (1), a partition (13) extending across the chamber from a location between the inlet and outlet ports (12;11) to the diaphragm (3). The diaphragm (3) is configured to be pressed progressively against the opposite wall of the housing (1) to force fluid drawn in at the inlet port (12) on one side of the partition (13) around the chamber and to expel it at the outlet port (11) at the other side of the partition (13). The outer face of the annular diaphragm (3) has a trough (40) at the part of the diaphragm (3) which faces the inlet port (12) and/or at the part of the diaphragm 3 which faces the outlet port (11).
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公开(公告)号：US20170198686A1
公开(公告)日：2017-07-13
申请号：US15314722
申请日：2015-05-29
CPC分类号： F04B43/1207 , F04B9/045 , F04B43/009 , F04B43/14
摘要： A rotary pump in a housing which defines an annular chamber with an inlet and outlet port which are located on either side of a partition which extends across the chamber. A flexible annular diaphragm forms one side of the chamber and faces a wall on the housing which forms the second side of the chamber. The diaphragm is sealed at its innermost and outermost edges to the housing and has legs extending away azimuthally around and integral with the diaphragm. A swashplate is connected to the legs of the diaphragm such that in use, movement of the swashplate causes the diaphragm to press precessively against the wall of the housing to force fluid drawn in at the inlet on one side of the partition around the chamber and to expel the fluid at the outlet at the other side of the partition.
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公开(公告)号：US20230358591A1
公开(公告)日：2023-11-09
申请号：US18027237
申请日：2021-09-20
发明人： Michael COUGHLAN , Bill SHEPHERD
IPC分类号： G01F23/263 , F24F13/22 , B01D35/28
CPC分类号： G01F23/268 , F24F13/222 , B01D35/28 , F24F2013/228 , F24F2140/30
摘要： A liquid filter, for example for a condensate reservoir (1), formed of a printed circuit board (8) comprising a plurality of holes (9) forming a filter screen through the printed circuit board. A first set of capacitive elements (16, 17) are formed in the printed circuit board (8) forming a first capacitive sensor (12) capable of measuring the depth of the liquid adjacent to the filter. The capacitive elements (16,17) may be shielded (19) on one side such that they measure the depth on one side of the filter. A second set of capacitive elements (16′, 17′) may be provided to measure the depth of the liquid on the opposite side of the filter.
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公开(公告)号：US10371138B2
公开(公告)日：2019-08-06
申请号：US15314722
申请日：2015-05-29
摘要： A rotary pump in a housing which defines an annular chamber with an inlet and outlet port which are located on either side of a partition which extends across the chamber. A flexible annular diaphragm forms one side of the chamber and faces a wall on the housing which forms the second side of the chamber. The diaphragm is sealed at its innermost and outermost edges to the housing and has legs extending away azimuthally around and integral with the diaphragm. A swashplate is connected to the legs of the diaphragm such that in use, movement of the swashplate causes the diaphragm to press precessively against the wall of the housing to force fluid drawn in at the inlet on one side of the partition around the chamber and to expel the fluid at the outlet at the other side of the partition.
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公开(公告)号：US20200166028A1
公开(公告)日：2020-05-28
申请号：US16632269
申请日：2018-07-11
摘要： A rotary pump comprising a housing (1) defining an annular chamber with inlet and outlet ports (12;11) spaced apart around the chamber, a flexible annular diaphragm (3) forming one side of the chamber spaced opposite an annular wall of the housing (1), the diaphragm (3) being sealed at its edges to the housing (1), a partition (13) extending across the chamber from a location between the inlet and outlet ports (12;11) to the diaphragm (3). The diaphragm (3) is configured to be pressed progressively against the opposite wall of the housing (1) to force fluid drawn in at the inlet port (12) on one side of the partition (13) around the chamber and to expel it at the outlet port (11) at the other side of the partition (13). The outer face of the annular diaphragm (3) has a trough (40) at the part of the diaphragm (3) which faces the inlet port (12) and/or at the part of the diaphragm 3 which faces the outlet port (11).
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