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1.发明申请公开(公告)号：US20200173673A1
公开(公告)日：2020-06-04
申请号：US16208858
申请日：2018-12-04
发明人： Rakesh GOEL , Eric PEREZ , Eric BERG
IPC分类号： F24F6/08 , F24F11/30 , F24F1/0007 , F24F1/022 , F24F1/0059 , F24F11/00 , F24F11/74 , F24F13/10 , F24F13/02
摘要： An HVAC system includes an indoor heat-exchange coil disposed between a supply air duct and a return air duct. A damper is disposed in a re-circulation duct and is moveable between an open position and a closed position. A controller is configured to determine if the HVAC system is operating in a heating mode or an air-conditioning mode. Responsive to a determination that the HVAC system is operating in the air-conditioning mode, the controller is configured to determine if the variable-speed indoor circulation fan is operating at a minimum speed and if the relative humidity measured by the humidity sensor is above a pre-determined threshold. Responsive to a determination that the variable-speed indoor circulation fan is operating at the minimum speed and the relative humidity of the enclosed space is above the pre-determined threshold, the controller signals the damper to move to the open position.
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公开(公告)号：US20190186798A1
公开(公告)日：2019-06-20
申请号：US15848637
申请日：2017-12-20
发明人： Rakesh GOEL , Robert B. USELTON , Eric BERG , Mark OLSEN
CPC分类号： F25B49/005 , F25B13/00 , F25B41/003 , F25B41/043 , F25B45/00 , F25B2500/222 , G01M3/007 , G01M3/16
摘要： A refrigerant detector testing system according to aspects of the disclosure includes a metering orifice formed in a suction line that is disposed between an evaporator coil and a compressor, a valve fluidly coupled to the metering orifice, a connecting tube fluidly coupled to the valve on a side opposite the metering orifice, a mixing device having an input orifice fluidly coupled to the connecting tube. In some embodiments, the mixing device includes an air intake disposed proximate the input orifice, a throttling portion downstream of the input orifice and the air intake, the throttling portion having a reduced cross-sectional area, and a diffuser section positioned downstream of the throttling portion, the diffuser section having an output orifice. According to aspects of the disclosure, a refrigerant detector fluidly exposed to the output orifice.
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公开(公告)号：US20190137201A1
公开(公告)日：2019-05-09
申请号：US16242168
申请日：2019-01-08
发明人： Rakesh GOEL , Mark OLSEN
摘要： In various implementations, a heat exchanger system may include one or more flow paths. At least one of the flow paths may be associated with more than one pass and/or fluid flow through the flow path may be restricted. A setting of the heat exchanger system may include associations between flow path(s) and/or pass(es). A setting for the heat exchanger system may be determined, and the heat exchanger system may be allowed to operate in the determined setting, in some implementations.
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4.发明申请公开(公告)号：US20170299243A1
公开(公告)日：2017-10-19
申请号：US15641699
申请日：2017-07-05
发明人： Eric BERG , Rakesh GOEL
CPC分类号： F25B49/022 , F25B13/00 , F25B31/00 , F25B2600/0253 , F25B2600/026 , F25B2700/1931 , F25B2700/1933 , F25B2700/2106 , F25B2700/21152 , F25B2700/2116 , G01K1/024 , G01L19/086 , G01L27/002 , G01L27/005
摘要： The present invention provides for a system for calibrating operation of a compressor unit in a heating, ventilation, and air conditioning (HVAC) system. A measuring device measures an operating parameter of the HVAC system at a position where the measuring device is mounted on a refrigerant line of the HVAC system. The measuring device switches states when the value of the measured operating parameter reaches a switching value. A controller estimates a value of the first operating parameter at the position where the first measuring device is mounted on the refrigerant line, and the controller determines whether the estimated first operating parameter is within a threshold percentage of the switching value.
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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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公开(公告)号：US20200072521A1
公开(公告)日：2020-03-05
申请号：US16679662
申请日：2019-11-11
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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公开(公告)号：US20190277546A1
公开(公告)日：2019-09-12
申请号：US16421611
申请日：2019-05-24
发明人： Rakesh GOEL
摘要： A system for reducing refrigerant pressure in an HVAC system includes a receptacle that is fluidly coupled to a condenser. The receptacle is coupled to the condenser between a first pass and a second pass of refrigerant across a flow path of air. The receptacle can include a connection allowing for refrigerant flow into the receptacle during periods of high pressure. High pressure situations can therefore be alleviated, saving wear and tear on the HVAC system.
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8.发明申请公开(公告)号：US20190264945A1
公开(公告)日：2019-08-29
申请号：US16406458
申请日：2019-05-08
发明人： Rakesh GOEL
摘要： An HVAC system includes an evaporator coil and a metering device fluidly coupled to the evaporator coil. The HVAC system also includes a variable-speed circulation fan and a condenser coil fluidly coupled to the metering device. The HVAC system also includes a variable-speed compressor fluidly coupled to the condenser coil and the evaporator coil and a controller operatively coupled to the variable-speed compressor and the variable-speed circulation fan. The controller is configured to measure a speed of the variable-speed compressor, calculate a normal cooling Cubic Feet per Minute (CFM), measure a speed of the variable-speed circulation fan, and determine if the speed of the variable-speed circulation fan exceeds the normal cooling CFM. If the speed of the variable-speed circulation fan exceeds the normal cooling CFM, the HVAC controller adjusts a speed of at least one of the variable-speed compressor and the variable-speed circulation fan.
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公开(公告)号：US20180372359A1
公开(公告)日：2018-12-27
申请号：US16120573
申请日：2018-09-04
发明人： Rakesh GOEL
IPC分类号： F24F11/30 , F25B49/02 , F24F11/72 , F24F11/77 , F24F11/85 , F24F140/20 , F24F110/10
摘要： An HVAC system includes an evaporator coil and a metering device. The HVAC system includes a variable-speed circulation fan and a condenser coil fluidly coupled to the metering device. A variable-speed compressor is fluidly coupled to the condenser coil and the evaporator coil. A controller is operatively coupled to the variable-speed compressor and the variable-speed circulation fan. A second temperature sensor is disposed in an enclosed space. The second temperature sensor measures temperature of the enclosed space and transmits the temperature of the enclosed space to the controller. The controller determines if the temperature of the enclosed space is below a minimum threshold. Responsive to a determination that the temperature of the enclosed space is below the minimum threshold, the controller modulates at least one of a speed of the variable-speed compressor and the variable-speed circulation fan to lower a discharge air temperature.
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10.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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