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公开(公告)号：US20180274829A1
公开(公告)日：2018-09-27
申请号：US15464470
申请日：2017-03-21
摘要： A compressor system includes at least two compressors. A suction equalizing tube fluidly couples the at least two compressors. A plumbing assembly fluidly couples to the first compressor and the second compressor. The plumbing assembly comprises an outlet to each compressor of the at least two compressors. A pressure differential between the at least two compressors is created so as to facilitate maintenance of a desired fluid level in the at least two compressors.
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公开(公告)号：US20220268456A1
公开(公告)日：2022-08-25
申请号：US17181174
申请日：2021-02-22
发明人： Rakesh GOEL , Siddarth RAJAN
摘要： In an embodiment, a method of preventing evaporator coil freeze in a heating, ventilation and air conditioning (HVAC) system includes determining a reference saturated suction temperate (SST) via a sensor disposed in relation to an evaporator coil in the HVAC system, where the HVAC; system is operating in reheat dehumidification mode. The method also includes determining whether the reference SST is below a minimum SST threshold. The method also includes, responsive to a determination that the reference SST is below the minimum SST threshold, determining a decreased compressor speed. The method also includes modulating a variable-speed. compressor in the HVAC system in correspondence to the decreased compressor speed.
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3.发明申请公开(公告)号：US20180340526A1
公开(公告)日：2018-11-29
申请号：US15606571
申请日：2017-05-26
发明人： Rakesh GOEL , Siddarth RAJAN
摘要： A compressor system includes a first compressor and a second compressor. A common equalization line fluidly couples the first compressor and the second compressor and provides a single path for passage of fluids between the first compressor and the second compressor. An obstruction device is disposed in the common equalization line. Responsive to one of the first compressor and the second compressor being deactivated while the other of the first compressor and the second compressor remains active, the obstruction device is in a closed configuration. When in the closed configuration, the obstruction device prevents flow of fluid between the first compressor and the second compressor. Prevention of fluid flow between the first compressor and the second compressor causes at least minimum prescribed fluid levels to be maintained in the first compressor and the second compressor.
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公开(公告)号：US20210381735A1
公开(公告)日：2021-12-09
申请号：US17408802
申请日：2021-08-23
发明人： Rakesh GOEL , Siddarth RAJAN , Patric Ananda BALAN
摘要： An HVAC system includes an evaporator coil and a compressor fluidly coupled to the evaporator coil. A condenser coil is fluidly coupled to the compressor. The condenser coil includes at least one condenser circuit fluidly coupled between a discharge line and an exit manifold. A sub-cool circuit is fluidly coupled between the exit manifold and a liquid line. A first temperature sensor is disposed at an entrance to the sub-cool circuit. A second temperature sensor is disposed at an exit to the sub-cool circuit. An HVAC controller is operatively coupled to the first temperature sensor and the second temperature sensor. The HVAC controller is configured to determine a temperature difference across the sub-cool circuit.
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公开(公告)号：US20210088263A1
公开(公告)日：2021-03-25
申请号：US16578609
申请日：2019-09-23
发明人： Rakesh GOEL , Siddarth RAJAN , Patric Ananda BALAN
摘要： An HVAC system includes an evaporator coil and a compressor fluidly coupled to the evaporator coil. A condenser coil is fluidly coupled to the compressor. The condenser coil includes at least one condenser circuit fluidly coupled between a discharge line and an exit manifold. A sub-cool circuit is fluidly coupled between the exit manifold and a liquid line. A first temperature sensor is disposed at an entrance to the sub-cool circuit. A second temperature sensor is disposed at an exit to the sub-cool circuit. An HVAC controller is operatively coupled to the first temperature sensor and the second temperature sensor. The HVAC controller is configured to determine a temperature difference across the sub-cool circuit.
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公开(公告)号：US20190323747A1
公开(公告)日：2019-10-24
申请号：US15957075
申请日：2018-04-19
发明人： Eric GILES , Rakesh GOEL , Siddarth RAJAN
摘要： An HVAC system includes an evaporator. A compressor is fluidly coupled to the evaporator via a suction line. A condenser is fluidly coupled to the compressor via a discharge line. The condenser includes a first pass and a second pass. A common manifold fluidly couples the first pass and the second pass. A charge compensator is fluidly coupled to the common manifold above a maximum liquid level of the common manifold.
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公开(公告)号：US20230088937A1
公开(公告)日：2023-03-23
申请号：US17994523
申请日：2022-11-28
发明人： Rakesh GOEL , Siddarth RAJAN
摘要： In an embodiment, a method of preventing evaporator coil freeze in a heating, ventilation and air conditioning (HVAC) system includes determining a reference saturated suction temperate (SST) via a sensor disposed in relation to an evaporator coil in the HVAC system, where the HVAC system is operating in reheat dehumidification mode. The method also includes determining whether the reference SST is below a minimum SST threshold. The method also includes, responsive to a determination that the reference SST is below the minimum SST threshold, determining a decreased compressor speed. The method also includes modulating a variable-speed compressor in the HVAC system in correspondence to the decreased compressor speed.
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公开(公告)号：US20220186997A1
公开(公告)日：2022-06-16
申请号：US17123476
申请日：2020-12-16
发明人： Rakesh GOEL , Siddarth RAJAN
摘要： A method of mitigating a freeze event in an HVAC system includes measuring a saturated suction temperature, receiving actual temperature value reflective of the measured saturated suction temperature, determining whether the actual temperature value is less than a first pre-determined minimum threshold temperature value, and responsive to a determination that the actual temperature value is less than the first pre-determined minimum threshold temperature value, initiating a timer to operate for a pre-determined time interval. Determining whether the actual temperature value is less than a second pre-determined minimum threshold temperature value. Responsive to a determination that the actual temperature value is less the second pre-determined minimum threshold temperature value, initiating the timer to operate for a modified time interval, determining whether the timer operating for the modified time interval has expired, and responsive to a determination that the timer has expired, modifying operation of a compressor.
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公开(公告)号：US20200318868A1
公开(公告)日：2020-10-08
申请号：US16907522
申请日：2020-06-22
摘要： A compressor system includes at least two compressors. A suction equalizing tube fluidly couples the at least two compressors. A plumbing assembly fluidly couples to the first compressor and the second compressor. The plumbing assembly comprises an outlet to each compressor of the at least two compressors. A pressure differential between the at least two compressors is created so as to facilitate maintenance of a desired fluid level in the at least two compressors.
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公开(公告)号：US20180274835A1
公开(公告)日：2018-09-27
申请号：US15464606
申请日：2017-03-21
CPC分类号： F25B49/022 , F25B31/00 , F25B31/002 , F25B41/04 , F25B41/043 , F25B49/02 , F25B2400/075 , F25B2400/0751 , F25B2500/16 , F25B2500/27 , F25B2600/0251 , F25B2600/2519
摘要： A compressor system includes a first compressor and a second compressor. A suction equalization line fluidly couples the first compressor and the second compressor. A first branch suction line is fluidly coupled to the first compressor and a second branch suction line is fluidly coupled to the second compressor. A main suction line is fluidly coupled to the first branch suction line and the second branch suction line. An obstruction device is disposed in at least one of the first branch suction line and the second branch suction line. Responsive to deactivation of at least one of the first compressor and the second compressor, the obstruction device is at least partially closed thereby causing prescribed liquid levels in the first compressor and the second compressor during partial-load operation.
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