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1. 发明公开

EP3872424A2 SENSOR VALIDATION 有权
公开(公告)号：EP3872424A2
公开(公告)日：2021-09-01
申请号：EP21156272.3
申请日：2021-02-10
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , RAJAN, Siddarth , ROBINSON, Edward , THOBIAS, Patric Ananda Balan
IPC分类号： F25B49/02 , F25B49/00
摘要： An HVAC system (100) includes a compressor (106a), condenser (108a), and evaporator (124a). A sensor (114a, 118a, 132a, 136a) measures a value associated with the refrigerant in the condenser or the evaporator, and a controller (160) is communicatively coupled to the compressor and the sensor. The controller determines, based on an operational history the compressor, that pre-requisite criteria are satisfied for entering a sensor validation mode. After determining the pre-requisite criteria are satisfied, an initial sensor measurement value is determined. Following determining the initial sensor measurement value, the compressor is operated according to a sensor-validation mode. Following operating the compressor according to the sensor-validation mode for at least a minimum time, a current sensor measurement value is determined. The controller determines whether validation criteria are satisfied for the current sensor value. In response to determining that the validation criteria are satisfied, the controller determines that the sensor is validated.

2. 发明公开

EP3599432A3 METHOD AND APPARATUS FOR HYBRID DEHUMIDIFICATION 无效
公开(公告)号：EP3599432A3
公开(公告)日：2020-07-29
申请号：EP19161072.4
申请日：2019-03-06
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , TRAN, John N.
IPC分类号： F25B1/00
摘要： An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.

3. 发明授权

EP2955454B1 HVAC SYSTEMS AND METHODS WITH REFRIGERANT LEAK DETECTION 有权
公开(公告)号：EP2955454B1
公开(公告)日：2020-02-12
申请号：EP15169692.9
申请日：2015-05-28
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , OLSEN, Mark , BOYD, Hermon Alan
IPC分类号： F24F11/00 , G01M3/04

4. 发明公开

EP3599432A2 METHOD AND APPARATUS FOR HYBRID DEHUMIDIFICATION 无效
公开(公告)号：EP3599432A2
公开(公告)日：2020-01-29
申请号：EP19161072.4
申请日：2019-03-06
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , TRAN, John N.
IPC分类号： F25B1/00
摘要： An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.

5. 发明公开

EP3406909A1 METHOD AND APPARATUS FOR COMMON PRESSURE AND OIL EQUALIZATION IN MULTI-COMPRESSOR SYSTEMS 审中-公开
公开(公告)号：EP3406909A1
公开(公告)日：2018-11-28
申请号：EP18170987.4
申请日：2018-05-07
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , RAJAN, Siddarth
IPC分类号： F04D29/063 , F25B31/00 , F04B39/02 , F04B41/06
CPC分类号： F04B39/0207 , F04B23/04 , F04B39/121 , F04B39/123 , F04B41/06 , F04D13/12 , F04D29/063 , F25B31/002 , F25B31/004 , F25B41/04 , F25B41/043 , F25B49/02 , F25B49/022 , F25B2400/075 , F25B2400/0751 , F25B2500/16 , F25B2500/27 , F25B2600/0251 , F25B2600/2519 , F25B2600/2525
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.

6. 发明公开

EP3059525A1 HVAC SYSTEMS AND METHODS WITH IMPROVED STABILIZATION 审中-实审
标题翻译： KLIMAANLAGEN UND VERFAHREN MIT VERBESSERTER STABILISIERUNG
公开(公告)号：EP3059525A1
公开(公告)日：2016-08-24
申请号：EP16154091.9
申请日：2016-02-03
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , BERG, Eric
IPC分类号： F25B41/06 , F25B41/00 , G01K1/14
CPC分类号： F25B49/02 , F25B41/003 , F25B41/062 , F25B2341/068 , F25B2341/0683 , F25B2400/054 , F25B2500/15 , F25B2600/2513 , F25B2700/21151
摘要： Systems and methods are presented for improving stabilization of a heating, ventilating, and air conditioning (HVAC) system. More specifically, the systems and methods include a heat-flow modulator for regulating an exchange of thermal energy between a flow of refrigerant and a sensory bulb. The exchange of thermal energy allows an expansion valve to respond to a refrigerant temperature using an actuator, which is coupled to the sensory bulb. The heat-flow modulator is formed of a body that includes a first contact surface and a second contact surface. The first contact surface is thermally-coupled to a suction line of the HVAC system, which conveys the flow of refrigerant. The second contact surface is thermally-coupled to the sensory bulb. Other systems and methods are presented.
摘要翻译：提出了系统和方法，以改善加热，通风和空调（HVAC）系统的稳定性。更具体地说，该系统和方法包括用于调节制冷剂流与感官灯泡之间的热能交换的热流调节器。热能的交换允许膨胀阀使用耦合到感觉灯泡的致动器来响应制冷剂温度。热流调节器由包括第一接触表面和第二接触表面的主体形成。第一接触表面热耦合到HVAC系统的吸入管线，其传送制冷剂的流动。第二接触表面热耦合到感觉灯泡。介绍了其他系统和方法。

7. 发明公开

EP3627075A3 METHOD AND APPARATUS FOR RE-HEAT CIRCUIT OPERATION 无效
公开(公告)号：EP3627075A3
公开(公告)日：2020-07-22
申请号：EP19161467.6
申请日：2019-03-08
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , LIU, Wenqian
IPC分类号： F25B40/04 , F25B13/00 , F25B39/02 , F25B41/00 , F25B41/06
摘要： A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. A re-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.

8. 发明公开

EP3517856A1 METHOD AND APPARATUS FOR REFRIGERANT DETECTOR CALIBRATION CONFIRMATION 有权
公开(公告)号：EP3517856A1
公开(公告)日：2019-07-31
申请号：EP18205206.8
申请日：2018-11-08
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , USELTON, Robert B. , BERG, Eric , OLSEN, Mark
IPC分类号： F25B13/00 , G01M3/00 , F25B49/00 , F25B41/00 , F25B41/04 , 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.

9. 发明公开

EP3255353A1 METHOD AND APPARATUS FOR OPTIMIZING LATENT CAPACITY OF A VARIABLE SPEED COMPRESSOR SYSTEM 有权
标题翻译：优化变速压缩机系统潜能的方法和装置
公开(公告)号：EP3255353A1
公开(公告)日：2017-12-13
申请号：EP17174779.3
申请日：2017-06-07
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh
IPC分类号： F24F11/02 , F24F11/053 , F24F11/00
CPC分类号： F24F11/77 , F24F11/72 , F24F11/76 , F24F11/83 , F24F11/85 , F25B49/02 , F25B2600/11 , F25D17/06
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.
摘要翻译： HVAC系统包括蒸发器盘管和流体联接到蒸发器盘管的计量装置。 HVAC系统还包括流体连接到计量装置的变速循环风扇和冷凝器盘管。 HVAC系统还包括流体地联接到冷凝器盘管和蒸发器盘管的变速压缩机以及可操作地联接到变速压缩机和变速循环风扇的控制器。控制器被配置为测量变速压缩机的速度，计算正常冷却立方英尺每分钟（CFM），测量变速循环风扇的速度，并且确定变速循环风扇的速度超过正常冷却CFM。如果变速循环风扇的速度超过正常冷却CFM，则HVAC控制器调节变速压缩机和变速循环风扇中的至少一个的速度。

10. 发明公开

EP3208561A1 METHOD AND APPARATUS FOR RE-HEAT DEHUMIDIFICATION UTILIZING A VARIABLE SPEED COMPRESSOR SYSTEM 无效
标题翻译：使用变速压缩机系统的再热除湿方法及装置
公开(公告)号：EP3208561A1
公开(公告)日：2017-08-23
申请号：EP16156458.8
申请日：2016-02-19
申请人： Lennox Industries Inc.
发明人： GOEL, Rakesh , PHILLIPS, Derek
IPC分类号： F25B49/02 , F24F11/00
CPC分类号： F24F11/0008 , F24F11/30 , F24F11/77 , F24F11/83 , F24F11/85 , F24F2110/20 , F25B29/003 , F25B39/028 , F25B49/02 , F25B49/022 , F25B2600/025 , F25B2600/11 , F25B2700/02 , F25B2700/2117
摘要： A heating, ventilation, and air conditioning (HVAC) system for regulating humidity of an enclosed space. The HVAC system includes an evaporator coil. A metering device is fluidly coupled to the evaporator coil. A variable-speed compressor is fluidly coupled to the condenser coil and the evaporator coil and a controller is operatively coupled to the variable-speed compressor. A humidity sensor is operatively coupled to the controller and exposed to the enclosed space. Responsive to a determination that the relative humidity of the enclosed space exceeds the maximum humidity threshold, the controller adjusts a speed of the variable-speed compressor to increase latent capacity of the HVAC system. Responsive to a determination that the relative humidity of the enclosed space falls below the minimum humidity threshold, the controller adjusts a speed of the variable-speed compressor to decrease latent capacity of the HVAC system.
摘要翻译：用于调节封闭空间湿度的暖通空调（HVAC）系统。 HVAC系统包括蒸发器盘管。计量装置流体联接到蒸发器盘管。变速压缩机流体联接到冷凝器盘管和蒸发器盘管，并且控制器可操作地联接到变速压缩机。湿度传感器可操作地连接到控制器并暴露于封闭空间。响应于封闭空间的相对湿度超过最大湿度阈值的确定，控制器调整变速压缩机的速度以增加HVAC系统的潜在容量。响应于封闭空间的相对湿度降至最低湿度阈值以下的确定，控制器调整变速压缩机的速度以降低HVAC系统的潜在容量。

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