Abstract: A vapor compression system includes a compressor configured to circulate a refrigerant through a refrigerant loop, a sump configured to receive a mixture of lubricant and the refrigerant from the compressor, and a controller having a memory and a processor. The processor is configured to receive a first signal indicative of a temperature of the mixture within the sump, receive a second signal indicative of a pressure of the mixture within the sump, determine a relative amount of the refrigerant in the mixture based on the first signal and the second signal, and output a control signal in response to the relative amount of the refrigerant in the mixture exceeding a threshold value.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a hot water sub-system including a first heat exchanger and a condenser, a cold water sub-system including a second heat exchanger and an evaporator, and a refrigerant sub-system for transferring heat from the cold water sub-system to the hot water sub-system. The first and second heat exchangers transfer moisture and heat between a liquid desiccant and air. The refrigerant sub-system includes a compressor, the condenser, an expansion valve, the evaporator, and a refrigerant-air heat exchanger. The condenser transfers heat from compressed refrigerant to the hot water sub-system. The evaporator transfers heat from the cold water sub-system to uncompressed refrigerant. The refrigerant-air heat exchanger transfers heat from a portion of the compressed refrigerant to air in a first operating mode, and transfers heat from the air to a portion of the uncompressed refrigerant in a second operating mode.

Abstract: A dehumidifier includes a housing, a motor bracket provided in the housing; and a water pan. The housing includes a top cover provided with a mounting hole and a handle movably provided in the mounting hole in a vertical direction. A gap is formed between the handle and a circumferential wall surface of the mounting hole. The motor bracket includes a top wall below the gap, and the top wall is provided with an overflow hole. The water pan is provided below the overflow hole and configured to receive water flowing out via the overflow hole.

Abstract: A heat management system includes a refrigerant circulation line for circulating refrigerant, the refrigerant circulation line comprising a compressor, a water-cooled condenser, a first expansion valve, an air-cooled condenser, a second expansion valve, an evaporator, a refrigerant heat exchanger for causing mutual heat exchange between refrigerant introduced into the second expansion valve and refrigerant discharged from the evaporator, and a first refrigerant bypass line configured such that refrigerant that has passed through the water-cooled condenser bypasses the first expansion valve and the air-cooled condenser; a heating line for heating the indoor space by circulating cooling water that exchanges heat with the refrigerant through the water-cooled condenser; and a cooling line for cooling a battery and electronic equipment components by circulating the cooling water that exchanges heat with the refrigerant or air.

Abstract: A refrigerated carrier device that can maintain biological samples including capillary blood samples at refrigerated temperatures is described herein. The carrier includes an insulated phase change material (PCM) that can be pre-chilled to maintain biological samples at a refrigerated temperature (e.g., 2-8° C.) while the carrier is in transit and/or temporary storage protecting the samples from degradation. The use of PCM enables the temperature to be kept reliably between 2-8° C., avoiding temperature excursions, and eliminating the need for a compressor or thermoelectric device at the point of collection, which can reduce costs and risks related to heat, noise, condensation, and sample degradation due to power outages. The carrier device can be removable from a Sample Preparation system, which enables it to double as refrigerated storage at the point of collection and during transportation.

Abstract: Disclosed is a heat exchanger assembly including: a coil; one baffle connected to a first end of the coil, the one baffle being configured to capture a liquid refrigerant that has leaked from the coil, the one baffle being configured to direct the liquid refrigerant toward a first end of a drain pan.

Abstract: A device intended for cooling an object being moved within a cryostat comprises a heat transfer section forming a contact surface for said object and means for fastening the heat transfer section to a cooling structure in such a way that said contact surface remains free. The device comprises a spring section which is separate from said heat transfer section and which is arranged to exert on the heat transfer section a spring force pushing said contact surface in a direction in which it is intended to contact said object.

Abstract: A metering device may automatically control fluid flow through a valve. A control system may alter the automatic control of a metering device. In some implementations, a predetermined event may occur to alter the automatic control of the metering device.

Abstract: The present disclosure relates to a new breed of high performance compressors and associated vapor compression systems that can be used in wide ranging refrigeration, cooling and heating applications with significantly increased compressor isentropic efficiency, motor efficiency, reliability and longevity of the motor, the compressor pump and the system as a whole, as well as COP, heating capacity, and SEER of the new vapor compression systems utilizing the new high performance compressors. The design philosophy and modifications to the current configuration of rolling piston rotary compressor to arrive at the high-performance version of the same type will be readily applicable to other types of vapor compression compressors with only minor changes opening the way for adoption of the new design philosophy by the entire compressor industry resulting in serious reduction of carbon footprint for air conditioners, heat pumps and refrigerators worldwide.

Abstract: A refrigerant module of an integrated thermal management system of a vehicle is provided in which components of the module may be compactified by modularizing the components related to a refrigerant. In the refrigerant module of the integrated thermal management system for the vehicle in which the refrigerant module is configured such that a refrigerant circulates through a compressor, a condenser, an expansion valve, an evaporator, and an accumulator, the refrigerant module includes the compressor having a first suction port and a first discharge port, the condenser having a second suction port and a second discharge port, the expansion valve having a third suction port and a third discharge port, the evaporator having a fourth suction port and a fourth discharge port, the accumulator having a fifth suction port and a fifth discharge port, and a connection passage enabling the refrigerant discharged from the accumulator to flow to the compressor.

Abstract: A method for servicing a heater core installed in a heating, ventilation, and air-conditioning (HVAC) assembly for a motor vehicle includes removing a sealing attachment from an interfacing connection interfacing with the heater core. The method includes sliding the heater core in a direction of insertion. The method includes disconnecting, from the heater core, the interfacing connection. The method includes removing the heater core in a direction of extraction, the direction of extraction being orthogonal to the direction of insertion.

Abstract: A transport refrigeration system includes a compressor, a heat rejection heat exchanger, a flash tank, an expansion device and a heat absorption heat exchanger arranged in a serial refrigerant flow order to circulate a refrigerant; a controller configured to: determine a presence of at least one condition of the transport refrigeration system; and initiate a low refrigerant charge detection process in response to detecting the presence of the at least one condition of the transport refrigeration system.

Abstract: There are a first coolant circuit that supplies a first coolant in a first tank to a first load, a second coolant circuit that supplies a second coolant in a second tank to a second load, and a refrigeration circuit that adjusts temperatures of the first and second coolants to set temperatures by heat exchange between the first and second coolants and refrigerants by using heat exchangers. The set temperature of the second coolant is equal to the set temperature of the first coolant or higher than the set temperature of the second coolant, and the set flow rate of the first coolant is higher than the set flow rate of the second coolant, and the volume of the first tank is larger than the volume of the second tank.

Abstract: A compressing device includes a first turbine a second turbine and a compressor. The first turbine is configured to provide a first energy by expanding a first medium and the second turbine configured to provide a second energy by expanding a second medium. The compressor is configured to receive the first energy and the second energy during a first mode of the compressing device, receive the first energy during a second mode of the compressing device, and compress the second medium in accordance with the first mode or the second mode.

Abstract: The invention provides a compact and self-sustained refrigeration system for medical uses, including in hospitals, in clinics and in home uses, including rescue and field emergency situations, independent of external power supply, based on small amounts of liquid carbon dioxide.

Abstract: Embodiments of the present invention reduce the amount of energy required to operate air-conditioners and refrigerators by providing a vapor-compression system that harnesses a low- or no-cost source of energy, namely, heat, and uses the harnessed heat to power a new kind of compressor, called a “burst compressor” and a new kind of pump, called a “vapor pump.” The heat-driven burst compressor pressurizes the refrigerant, while also providing “push and pull” vapor refrigerant to the vapor pump. The vapor pump, actuated by the high pressure refrigerant in gaseous form provided by the burst compressor, is configured to pump a combination of gaseous, vaporous and liquid refrigerant out of the receiver tank and inject that low pressure refrigerant mix into the burst compressor, where it is heated to change the state of the refrigerant to a heated, pressurized gas. Then the heated, pressurized gas is released in bursts into the other components of the vapor compression cycle.

Abstract: A safety system (1) for evacuation of contaminated air and prevention of ignition in an air handling system (2). The air handling system (2) comprises a compressor enclosure (3). The safety system (1) is connectable to a power supply (4) and comprises an evacuation unit (5) connected to the compressor enclosure (3) for evacuation of contaminated air from the compressor enclosure (3).

Abstract: A pan chiller system eschews traditional methods of strapping refrigeration tubing upon an inner liner and obtaining temperature readings from a suction line. The disclosed embodiments overcome shortfalls in the related art by, inter alia, by artfully using a thermal retention assembly that retains refrigeration tubing in the middle of an inner liner. An inner liner may be filled with glycerin or similar products with the glycerin filling a temperature control bulb to obtain accurate temperature readings and avoiding the use of a suction line for such purposes. The disclosed embodiments may also include an air movement system moving cold air at the bottom of the pan and moving air upon the outer sides of the glycerin well and over the top of the well.

Abstract: An air-conditioning apparatus includes an outdoor heat exchanger. The outdoor heat exchanger includes a first heat exchanger and a second heat exchanger. A controller performs a heating operation and a heating-defrosting operation, in which one of the first heat exchanger and the second heat exchanger functions as an evaporator, an other one the first heat exchanger and the second heat exchanger functions as a condenser. When a temperature of the indoor heat exchanger by a temperature detection unit is treated as a first temperature, and a temperature of the indoor heat exchanger by the temperature detection unit is treated as a second temperature, the controller reduces a rotation speed of an indoor fan in a case where the second temperature is lower than the first temperature and where a difference between the first temperature and the second temperature is greater than or equal to a first setting value.

Abstract: An air conditioner includes an outdoor unit including a compressor for compressing a refrigerant and an outdoor heat exchanger for exchanging heat between the refrigerant and outside air. A ventilation device is connected to the outdoor unit through a liquid refrigerant pipe, a high-pressure refrigerant pipe, and a low-pressure refrigerant pipe. The ventilation device supplies the outside air to an indoor space, and discharges indoor air to the outside. The ventilation device includes a case, a main heat exchanger, a recovery heat exchanger, a refrigerant distributor, and a re-heat heat exchanger. A liquid refrigerant pipe valve is disposed in the liquid refrigerant pipe for controlling an amount of refrigerant.