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公开(公告)号：US20220113717A1
公开(公告)日：2022-04-14
申请号：US17560941
申请日：2021-12-23
发明人： Kirby N. Bicknell
摘要： Architectures or techniques are presented that can determine a setting for an environment control (EC) or HVAC system in response to a fault with the EC system that controls an environment of an occupant. Significantly, the determined setting can be intentionally selected as one that does not comport with the expectations or desired comfort level of the occupant. Thus, a condition can be created in the environment that is determined to be likely to cause the occupant to examine a user interface associated with the EC system. The user interface can present an indication of the fault, which otherwise may go unnoticed, particularly in cases where the occupant has no reason to interact with the EC system due to the environment meeting expectations.
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公开(公告)号：US11242861B2
公开(公告)日：2022-02-08
申请号：US16230648
申请日：2018-12-21
摘要： A split-collar fan orifice apparatus and method are disclosed. The split-collar fan orifice includes a generally semi-annular member having a first end and a second end, the member having an inner surface and an outer surface. The member has a first mating surface on the first end and a second mating surface on the second end. The first mating surface and the second mating surface are different. The split-collar fan orifice further includes a plurality of ribs disposed along the outer surface of the member. The plurality of ribs is configured to provide rigidity to the member. The plurality of ribs includes a first rib and a second rib, and the first rib extends in a first direction and the second rib extends in a second direction.
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公开(公告)号：US20220034542A1
公开(公告)日：2022-02-03
申请号：US16986086
申请日：2020-08-05
发明人： Michael Peters , Kaustubh Pradeep Phalak , Deep Gupta , Gang Wang , Yi Liu , Ronald Maurice Cosby, II
摘要： Described herein are heating, ventilation, air conditioning, and refrigeration (HVACR) systems and methods directed to indoor air quality. HVACR systems and methods are based on dynamic people modeling to simulate and/or to monitor airflow impact on pathogen spread in an indoor space. HVACR systems and methods model an indoor space with pathogen killing technology to deploy the pathogen killing technology. HVACR systems and methods are directed to control administration of a pathogen killing technology to an indoor space based on factors that impact airflow including from dynamic analytics, a known input, and/or detection.
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74.发明申请公开(公告)号：US20220026125A1
公开(公告)日：2022-01-27
申请号：US17492380
申请日：2021-10-01
摘要： Oleophobic and/or philic surface(s) are utilized for oil separation, direction, and/or collection in a refrigeration system. Surfaces of component(s) of a refrigeration system (compressor, oil separator, evaporator, etc.) are produced to be oleophobic or philic. The oleophobic and/or philic surfaces are utilized to direct a flow path of oil within the refrigeration system or to prevent oil connection in an area. Refrigerant phobic and/or lubricant phobic material(s) also may be utilized to help promote separation of refrigerant vapor from refrigerant liquid and/or from oil in refrigeration systems.
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公开(公告)号：US11226140B2
公开(公告)日：2022-01-18
申请号：US16944847
申请日：2020-07-31
发明人： Yves Jacques Raimbault , Philippe Del Marcel Tisserand , Qingnan Huang , Marie Tallotte , Clément Reignier
摘要： Systems and methods for controlled subcooling of working fluid in a heating, ventilation, air conditioning and refrigeration (HVACR) system through a suction line heat exchanger are disclosed. The suction line heat exchanger may receive a first fluid flow travelling to a suction of the compressor in the HVACR system and second flow of working fluid that is travelling from a heat exchanger receiving the discharge of the compressor to an expansion device. Superheating of the first working fluid may be determined based on temperature measurements prior to and following the suction line heat exchanger. The superheating may be used to control the quantity of the second flow of working fluid introduced into the suction line heat exchanger, for example to maintain superheat that is below a threshold value. These systems may include chillers and heat pump systems, and methods may be applied to chillers or heat pump systems.
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公开(公告)号：US11225973B2
公开(公告)日：2022-01-18
申请号：US16600670
申请日：2019-10-14
IPC分类号： F04D17/12 , F04D29/051 , F04D29/62 , F04D25/06 , F04D29/26
摘要： Systems and methods to clamp an impeller on a shaft in a centrifugal compressor. The embodiments as disclosed herein may include clamping individual impeller independently to the shaft, which may reduce the tolerance stack-up effect of a plurality of impellers. The impeller can be clamped to the shaft by positioning, for example, a relatively stiff support (e.g. a shaft locknut) on a front side of the impeller. The impeller can also be clamped to the shaft by a relatively flexible support to compensate for e.g. thermal expansion/contraction of the impeller. The embodiments as disclosed herein are particularly suitable for a multi-stage impeller.
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公开(公告)号：US20220010958A1
公开(公告)日：2022-01-13
申请号：US16926401
申请日：2020-07-10
发明人： Timothy J. Tupa , Justen William Grubb , Caleb R. Joiner , William James Teising , Stephen Kowalski , Gary L. Wright
摘要： Example furnaces and methods related thereto are disclosed herein. In an embodiment, the furnace includes a burner box including at least one burner configured to combust a fuel/air mixture. In addition, the furnace includes a first blower including an inlet nozzle having an air inlet and fuel inlet. The inlet nozzle is configured such that operation of the first blower is to pull air and fuel into the inlet nozzle to produce the fuel/air mixture at a fuel/air ratio that is configured to produce flue products having less than 14 Nano-grams per Joule of nitrogen oxides when combusted. Operation of the first blower is configured to push the fuel/air mixture into the burner box. Further, the furnace includes a heat exchanger assembly fluidly coupled to the burner box through a vestibule, and a second blower configured to pull the flue products through the heat exchanger assembly.
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公开(公告)号：US20210404719A1
公开(公告)日：2021-12-30
申请号：US17362558
申请日：2021-06-29
摘要： A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.
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公开(公告)号：US11199334B2
公开(公告)日：2021-12-14
申请号：US16186327
申请日：2018-11-09
IPC分类号： F24F7/06 , G05B13/00 , F24F7/00 , F24F11/00 , F24F7/007 , F24F11/30 , F24F110/50 , F24F120/10 , F24F11/77
摘要： A ventilation system for a building in some cases includes a main HVAC blower for moving temperature-conditioned air through the building plus a smaller ventilation blower for providing fresh air. A controller regulates the ventilation blower's speed to provide a target ventilation flow rate regardless of changes in the pressure differential between the indoor and outdoor air. To ensure that the target rate is appropriate for a particular building, the target flow rate is determined based on a ventilation setting that reflects a specified number of bedrooms and a specified amount of floor space of the building.
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公开(公告)号：US11162720B2
公开(公告)日：2021-11-02
申请号：US15750732
申请日：2016-08-11
发明人： Dermott Crombie , Stephen A. Kujak
摘要： A method of converting a refrigerant includes recovering a refrigerant from a refrigeration unit with an evacuation pump and containing the recovered refrigerant in a container. The method also includes testing the recovered refrigerant and converting the recovered refrigerant. The converted refrigerant is different from the recovered refrigerant. A system for converting a refrigerant includes an evacuation pump, a container, and one or more refrigerant containers. The evacuation pump and container are configured to recover a refrigerant from a refrigeration unit. The one or more containers deliver one or more refrigerant components into the container to convert the recovered refrigerant.
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