Patents Examined by Jerry-Daryl Fletcher
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Patent number: 11927353Abstract: An outdoor unit for a building HVAC system includes one or more sensors configured to measure temperature and pressure values. The unit also includes a user interface coupled to the outdoor unit. The user interface is configured to display information to a user. The unit includes a controller including a processing circuit. The processing circuit configured to record the temperature values and the pressure values via the sensors and cause the user interface to display temperature values and pressure values.Type: GrantFiled: August 31, 2020Date of Patent: March 12, 2024Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventors: Shaun B. Atchison, Theresa N. Gillette, John W. Uerkvitz, Aneek M. Noor, Brian D. Rigg, Jedidiah O. Bentz, Tyler Mccune, Tom R. Tasker, Shawn A. Hern
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Patent number: 11927379Abstract: The present disclosures discloses a precooler-based transcritical CO2 heat pump system and a control method of a waterway two-way valve thereof, in which a transcritical CO2 heat pump system is assisted by a precooler system. A circulating waterway is divided into two parts in the system through a three-way diversion valve and a three-way confluence valve and is connected to a waterway bypass valve through a waterway two-way regulating valve. An ambient temperature sensor, an evaporation fin temperature sensor and an evaporation pressure sensor are provided, and a programmable logic controller is used as a core for acquisition, operation and control.Type: GrantFiled: March 10, 2021Date of Patent: March 12, 2024Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Feng Cao, Yulong Song, Xiang Yin, Mingjia Li
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Patent number: 11927405Abstract: An apparatus and method of forming a heat exchanger includes forming a monolithic core body having a first set of flow passages and a core coefficient of thermal expansion, and additively manufacturing onto the monolithic core a first manifold defining a first fluid inlet for the first set of flow passages.Type: GrantFiled: December 9, 2022Date of Patent: March 12, 2024Assignee: Unison Industries, LLCInventors: Gordon Tajiri, Emily Marie Phelps, Dattu G V Jonnalagadda, Joseph Richard Schmitt
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Patent number: 11920843Abstract: A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.Type: GrantFiled: November 14, 2022Date of Patent: March 5, 2024Assignee: Johnson Controls Tyco IP Holdings LLPInventors: Shimin Sheng, Xiuping Su, Shenglong Wang, Curtis Christian Crane, Mark Robinson Bodell, II, Justin Patrick Kauffman
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Patent number: 11898770Abstract: Movable air conditioner and a control method. The movable air conditioner includes a water receiving tray configured to receive condensed water generated by an evaporator of the movable air conditioner, a first water collection area, a second water collection area; a water guiding member configured to selectively guide the condensed water in the water receiving tray to the first water collection area or the second water collection area, and a controller configured to control the water guiding member to the guide condensed water in the water receiving tray to the first water collection area, and configured to control the water guiding member to guide the condensed water in the water receiving tray to the second water collection area when a water level of the first water collection area reaches a preset value.Type: GrantFiled: December 17, 2018Date of Patent: February 13, 2024Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Zhihua Huang, Xinxiang Yao, Gang Yao, Haiqiang Huang, Qianglian Lin, Mengzhi Li, Yanzan Luo, Haishuang Zhu
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Patent number: 11885548Abstract: A refrigeration cycle apparatus includes: a refrigeration cycle circuit in which a compressor, a condenser, a first expansion valve, and an evaporator are connected by refrigerant pipes; an injection pipe having a refrigerant inflow side end and a refrigerant outflow side end, the refrigerant inflow side being connected between the condenser and the first expansion valve, the refrigerant outflow side end being connected to a suction side of the compressor; a second expansion valve provided at the injection pipe; and a controller that controls a rotation speed of the compressor and an opening degree of the second expansion valve. In the case of reducing a heat-exchange capability of the evaporator when the rotation speed of the compressor is a specified rotation speed, the controller performs a low load operation during which refrigeration is caused to flow through the injection pipe.Type: GrantFiled: January 7, 2019Date of Patent: January 30, 2024Assignee: Mitsubishi Electric CorporationInventors: Toshiki Imanishi, Kohei Tatsuwaki
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Patent number: 11859837Abstract: The disclosed technology includes devices and systems for an economizer of a heating ventilation and air conditioning (HVAC) system. The disclosed technology can include an economizer for an HVAC system comprising a housing, an air inlet extending through a wall of the housing, a sliding door configured to transition between a closed position and an open position, and a controller configured to cause the sliding door to transition between the closed position and the open position based on temperature data. The sliding door can comprise a first portion forming a barrier and a second portion comprising at least one aperture. In the closed position, the first portion can align with the air inlet and substantially prevent ambient air from moving through the air inlet. In the open position, the second portion can align with the air inlet and permit the ambient air to move through the air inlet.Type: GrantFiled: June 10, 2021Date of Patent: January 2, 2024Assignee: Rheem Manufacturing CompanyInventors: Chitra Sadanandan, Sivakumar Gopalnarayanan
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Patent number: 11852393Abstract: A vapor compression refrigeration system has a main refrigerant circuit having a primary compressor group, a gas cooler or condenser, an expansion device, a liquid receiver, and at least one evaporator. An emergency circulation duct fluidically connects the liquid receiver to the main circuit to allow a flow of refrigerant from the liquid receiver to the gas cooler. An emergency compressor group in the emergency circulation duct is activatable when pressure inside the liquid receiver or in the duct upstream of the emergency compressor group meets or exceeds a predefined emergency pressure threshold. An uninterruptible power supply powers the emergency compressor group and expansion device during a shutdown of the refrigeration system. When pressure inside the liquid receiver or in the duct upstream of the emergency compressor group equals or exceeds the predefined emergency pressure threshold, an emergency circulation of refrigerant fluid is activated through the emergency circulation duct.Type: GrantFiled: February 11, 2021Date of Patent: December 26, 2023Assignee: EPTA S.P.A.Inventors: Paolo Cavalleri, Mario De Bona, Davide Bortoluzzi, Daniele Mazzola
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Patent number: 11852370Abstract: Disclosed herein are methods, systems, and devices for allowing access for maintenance and servicing of environmental control systems of prefabricated equipment enclosures. In one embodiment, an enclosure includes a first wall, a first environmental control unit, and a first door. The first door is mechanically coupled with the first environmental control unit and the first wall. The first door is configured to have a first closed position allowing in-service operation of the first environmental control unit for an internal space of the enclosure.Type: GrantFiled: September 11, 2020Date of Patent: December 26, 2023Assignee: PCX Holding LLCInventors: Jason J. Ball, Jonathan J. Horvath, Gary Pollock
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Patent number: 11852373Abstract: An evaporative air cooler includes a housing including a top portion and a bottom portion coupled to the top portion. The evaporative air cooler further includes a water tank disposed in the top portion of the housing and configured to store water therein. The water tank includes an upper portion and a lower portion extending from the upper portion. The evaporative air cooler also includes a fan disposed within the housing. The evaporative air cooler further includes a holder removably attached to a back face of the housing. The evaporative air cooler also includes an ice pack at least partially received and supported by the holder. The ice pack is configured for cooling air entering the evaporative air cooler.Type: GrantFiled: June 6, 2022Date of Patent: December 26, 2023Assignee: Ontel Products CorporationInventor: Scott Barlettano
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Patent number: 11841150Abstract: A method for controlling the power-on or power-off of an air conditioner is provided. The method includes the following steps: determining whether a variable capacity compressor of the air conditioner is in a standby single-cylinder operation state before starting the air conditioner, where the variable capacity compressor is configured to be switchable between a single-cylinder operation state and a dual-cylinder operation state; if so, starting the air conditioner; if not, switching the variable capacity compressor to the standby single-cylinder operation state, and then starting the air conditioner. With this control method, regardless of whether the air conditioner is shut down because the power supply of the unit is cut off or because a power-off signal is received, the air conditioner can be started in a single-cylinder operation state in the next startup, so that the operation state of the cylinder is always determined when starting the air conditioner.Type: GrantFiled: December 12, 2018Date of Patent: December 12, 2023Assignee: Gree Electric Appliances, Inc. of ZhuhaiInventors: Kai Yu, Yaopeng Rong, Ke Xu, Qunbo Liu, Yi Ni, Longfei Li
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Patent number: 11841178Abstract: Systems and methods to manage power consumption of a building and storage by controlling a refrigeration system within the building are disclosed.Type: GrantFiled: July 13, 2021Date of Patent: December 12, 2023Assignee: AXIOM CLOUD INC.Inventors: Nikhil Saralkar, Anthony Diamond, Amrit Robbins
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Patent number: 11835286Abstract: A cooling apparatus includes: a pair of movable frames provided to be movable relative to each other so as to clamp a tank; multiple contact members provided on each of the pair of movable frames and each having a contact surface configured to contact an outer surface of the tank; a cooling liquid supply passage provided with multiple cooling liquid supply ports that respectively open in the contact surfaces of the contact members to supply a cooling liquid toward the outer surface of the tank; and a cooling liquid supply device that supplies the cooling liquid to the cooling liquid supply passage. Each of the contact surfaces is provided with grooves extending from a corresponding one of the cooling liquid supply ports to an outer edge of the contact surface.Type: GrantFiled: August 17, 2021Date of Patent: December 5, 2023Assignee: Yachiyo Industry Co., Ltd.Inventors: Masateru Takayanagi, Ryotaro Toyofuku, Fumihiro Tokumitsu, Takuya Masada, Tetsuya Nagashita, Yuichi Kato
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Patent number: 11812781Abstract: Systems and methods including a container assembly configured to maintain a controlled environment for storing a product therein are disclosed. Controlled environmental parameters may include at least one of the following: temperature, humidity, payload moisture content, solar radiation, magnetism, microwave, or light illumination. In certain implementations, the system includes a payload chamber and a self-contained environmental control unit (ECU) that may be coupled to the payload chamber using a substantially airtight seal. In certain embodiments, the ECU may include a condenser, a humidity controller, a liquid tank and a power source. Certain embodiments may include a warmer, temperature and/or humidity sensors, and/or a lock. Various combinations of the foregoing components and features may be incorporated, depending on the requirements of each particular implementation.Type: GrantFiled: March 23, 2020Date of Patent: November 14, 2023Assignee: PENDRAM, INCInventors: Jonathan Siann, Wilson C. Ng
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Patent number: 11808499Abstract: A refrigerant replacement method for a refrigeration apparatus is intended to replace a first refrigerant charged into a refrigerant circuit of the refrigeration apparatus with a second refrigerant. The second refrigerant is used together with a refrigerating machine oil having a higher additive content by percentage than another refrigerating machine oil to be used together with the first refrigerant. The method includes: a refrigerant recovery step of recovering the first refrigerant from the refrigerant circuit; an oil charging step of additionally charging a refrigerating machine oil having a predetermined additive content by percentage into the refrigerant circuit; and a refrigerant charging step of charging the second refrigerant into the refrigerant circuit. The predetermined additive content by percentage is higher than the additive content by percentage of the refrigerating machine oil to be used together with the second refrigerant.Type: GrantFiled: July 6, 2022Date of Patent: November 7, 2023Assignee: Daikin Industries, Ltd.Inventors: Naoki Shimozono, Tomomi Yokoyama, Ryuuji Takeuchi, Masaru Tanaka
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Patent number: 11796200Abstract: A refrigerant leak detection and mitigation system/method for use in heating, ventilation, and air conditioning (HVAC) systems that incorporates a refrigerant gas sensor (RGS), sensor signal conditioner (SSC), alarm status indicator (ASI), and digital control processor (DCP) is disclosed. The RGS detects ambient refrigerant gas (ARG) and indicates this as a refrigerant sensor voltage (RSV) to the SSC. The DCP and SSC form a closed control loop (CCL) in which the SSC electrical characteristics are adjusted by the DCP such that the RSV is continuously and dynamically recalibrated to account for background refrigerant gas levels, changes in ambient air conditions, RGS manufacturing tolerances, and other field-specific operational conditions that impact the RGS detection capabilities. The DCP is configured to log alarms to the ASI if a RGS refrigerant leak is detected and optionally shutdown one or more HVAC system components such as a specific air handler leaking refrigerant.Type: GrantFiled: May 2, 2022Date of Patent: October 24, 2023Inventor: Gina Deborah Morse
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Patent number: 11796194Abstract: Disclosed is a control parameter determining method for a photovoltaic air conditioning system, specifically including: determining a real-time inductance parameter of a controlled object of the photovoltaic air conditioning system according to real-time grid-connected power of the photovoltaic air conditioning system; substituting the real-time inductance parameter into the controlled object of the control system to calculate a basic control parameter of the control system; presetting a plurality of adjustment parameters corresponding to different grid-connected power respectively; when the real-time grid-connected power is matched with one of the grid-connected power, selecting an adjustment parameter corresponding to the matched grid-connected power to modify the basic control parameter, to obtain a target control parameter. The present disclosure further disclosed a control parameter determining apparatus and a control system for a photovoltaic air conditioning system.Type: GrantFiled: April 18, 2017Date of Patent: October 24, 2023Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Jianhua Li, Hewei Lou, Keqin Liu, Weitao Ni, Jing Wang
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Patent number: 11796509Abstract: A humidity sensor includes a sound wave element configured to transmit a sound wave and receive the sound wave reflected by a reflector, a reception circuit configured to obtain an arrival time of the reflected wave received by the sound wave element, and a humidity analysis circuit configured to calculate humidity by using the arrival time, a distance from the sound wave element to the reflector, and a temperature of a space from the sound wave element to the reflector.Type: GrantFiled: May 7, 2020Date of Patent: October 24, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Jini Hon, Akira Morikawa, Noriaki Katsumata
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Patent number: 11781793Abstract: In an embodiment, a method of preventing evaporator coil freeze in a heating, ventilation and air conditioning (HVAC) system is performed by a controller in the HVAC system. The method includes determining a reference saturated suction temperature (SST) via a sensor disposed in relation to an evaporator coil in the HVAC system. 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, increasing a discharge air temperature (DAT) setpoint.Type: GrantFiled: December 16, 2020Date of Patent: October 10, 2023Assignee: Lennox Industries Inc.Inventors: Rakesh Goel, Siddarth Rajan
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Patent number: 11774116Abstract: An evaporative air cooling tower is described. The evaporative air cooling tower includes a housing defining an interior of the evaporative air cooling tower; a grill coupled to the housing and defining openings; a tank positioned adjacent to a bottom portion of the housing, wherein the tank is configured to receive and store liquid; a tray positioned adjacent to a top portion of the housing, wherein the tray is configured to receive and release the liquid; a hose in fluid communication with the tank and the tray; a pump configured to pump the liquid from the tank to the tray through the hose; a filter structure comprising a filter configured to receive the liquid from the tray; and a fan configured to draw air into the interior, wherein the air is cooled by the filter and directed out of the interior through the openings.Type: GrantFiled: June 25, 2020Date of Patent: October 3, 2023Assignee: ONTEL PRODUCTS CORPORATIONInventor: Scott Barlettano