Abstract: The present disclosure is directed to a single compressor HVAC system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device. Within the system, the refrigerant exiting the compressor is separated into two portions. In the cooling mode, the first and second portions of the refrigerant are directed from the compressor through the two condensers in parallel. In the reheat mode, the first portion of the refrigerant is directed through the first condenser, while the second portion of the refrigerant is directed through the reheat heat exchanger. The system also may include a head pressure control device that is designed to maintain the compressor discharge pressure within a desired range by adjusting the condenser fan speed.

Abstract: A cold trap includes a cold panel, a cryocooler which cools the cold panel, a stage temperature control unit which determines a control input to the cryocooler to cool a cooling stage of the cryocooler to a target temperature, an input heat estimation unit which estimates an increase of input heat into the cold panel based on the control input to the cryocooler determined by the stage temperature control unit, and a target temperature adjustment unit which adjusts a target temperature based on the increase of the input heat estimated by the input heat estimation unit.

Abstract: This invention provides a thermal energy battery having an insulated tank containing a multitude of densely packed plastic tubes filled with a phase-change material (PCM, such as ice) that changes from solid to liquid and vice-versa. Energy is stored when the PCM transitions from liquid to solid form, and released when the PCM transitions back from solid to liquid form. The tubes are arranged vertically, span the height of a well-insulated tank, and are immersed in heat transfer fluid (HTF) contained within the tank. The HTF is an aqueous solution with a freezing point temperature below the freezing point temperature of the chosen PCM. The HTF remains in liquid form at all times during the operation of the battery. Diffusers located allow the HTF to be extracted uniformly from the tank, pumped and cooled by a liquid chiller situated outside the tank and then and inserted back into the tank.

Abstract: The present disclosure is directed to a single compressor HVAC system with hot gas reheat. The system includes a single compressor, a pair of condensers, a reheat heat exchanger, an evaporator, and an expansion device. Within the system, the refrigerant exiting the compressor is separated into two portions. In the cooling mode, the first and second portions of the refrigerant are directed from the compressor through the two condensers in parallel. In the reheat mode, the first portion of the refrigerant is directed through the first condenser, while the second portion of the refrigerant is directed through the reheat heat exchanger. The system also may include a head pressure control device that is designed to maintain the compressor discharge pressure within a desired range by adjusting the condenser fan speed.

Abstract: The present invention relates to an ice making apparatus suitable for use in a refrigerator including a freezer compartment. The ice making apparatus includes a casing which includes an ice tray for forming ice, wherein the ice tray has one or more than one pocket for filling with water. The ice making apparatus further includes a portable refillable cartridge which has an opening for dispensing water into the ice tray and a port for releasably mounting the cartridge.

Abstract: Task: To provide a high quality air conditioner with high efficiency and stability, preventing adverse effect of manufacturing variation on the refrigerant distribution. Solution: The air conditioner having an expansion valve for decompressing a refrigerant, and a heat exchanger for heat exchange between the refrigerant and air. The air conditioner includes a first linearly shaped piping that is connected to the expansion valve and vertically disposed, a branch pipe connected to the first piping for branching a refrigerant flow path into a plurality of sections, a plurality of second pipings connected to the branch pipe, and a plurality of distributors connected to the second piping for further branching the refrigerant flow path to the heat exchanger.

Abstract: A coolant passage connection structure includes: a first coolant passage attached to a case which houses a cooler and has a second opening, and extending from the cooler; a second coolant passage that communicates with the second opening; a first connection member connected to the first coolant passage, and having a first opening; a first face seal member; and a second connection member connected to the first opening and the second opening via the first face seal member. The second opening is provided in the case so as to be positioned below the first connection member in a vertical direction. The first connection member is positioned above the first face seal member in the vertical direction and includes a tapered portion that includes an inclined surface inclined further away from a surface of the case toward a lower side in the vertical direction.

Abstract: Disclosed is an ice storage apparatus that may include an ice reservoir having ice stored therein, the ice being made in an ice making unit, and a noise reduction unit for reducing noise transmitted externally when the ice is moved from the ice making unit to the ice reservoir.

Abstract: A merchandiser including a case that defines a product display area. The case includes a canopy that has a first air outlet in fluid communication with a primary air passageway within the case to direct a primary air curtain into the product display area, and a second air outlet in fluid communication with a secondary air passageway within the case to direct a secondary air curtain into the product display area. The merchandiser also includes a divider that is coupled to the canopy between the primary air passageway and the secondary air passageway. The divider provides airflow communication between the primary air passageway and the secondary air passageway upstream of the first and second air outlets.

Abstract: A four-process cycle is disclosed for a Vuilleumier heat pump that has mechatronically-controlled displacers. Vuilleumier heat pumps that use a crank to drive the displacers have been previously developed. However, mechatronic controls provides a greater degree of freedom to control the displacers. The four-process cycle provides a higher coefficient of performance than prior cycles in the crank-driven Vuilleumier heat pump and those previously disclosed for a mechatronically-driven Vuilleumier heat pump.

Abstract: An air-conditioning apparatus includes actuation control means including an actuation unit that sequentially opens heat medium flow switching devices or heat medium flow control devices on a one-by-one basis. The actuation control means performs control in such a manner that start time of driving of pumps is later than start of actuation of the heat medium flow switching devices and the heat medium flow control devices.

Abstract: A product merchandising system includes a housing having a top surface, two side surfaces spaced apart from one another defining a width-direction of the housing, and a front surface and rear surface spaced apart from one another defining a depth-direction of the housing. The system includes a product support system configured to support rows of products along a width of the housing, each row disposed at a position along the depth of the housing, the first row being towards the front surface of the housing. A cooling system includes a cooling system including a cooling heat exchanger generating an airflow, a deflector configured to direct the airflow through the cooling heat exchanger and towards a bottom of the housing, and a nozzle below the deflector and configured to direct the airflow towards a bottom of the housing through an outlet aperture and between a first two rows of products.

Abstract: The present invention relates to a cooling module including: a first radiator for cooling an engine; a second radiator located in front of the first radiator in an air flow direction to cool electric parts; a first condenser located in front of the second radiator in the air flow direction to condense a refrigerant through heat exchange with external air; and a second condenser located inside the second radiator to condense the refrigerant through heat exchange with electric part cooling water, whereby the high temperature and high pressure refrigerant passes through the water-cooled second condenser and then passes through the air-cooled first condenser, thus enhancing the cooling efficiency of the refrigerant to improve the entire efficiency of the cooling system for the vehicle.

Abstract: An air conditioning service system includes a discharge unit including a discharge vessel, a vacuum pump fluidly connected to the discharge vessel, a scale configured to sense a weight of the discharge unit, a first valve arranged in an input line configured to fluidly connect the discharge vessel to an air conditioning system, and a vent valve arranged in a vent line and configured to fluidly connect the discharge vessel to the atmosphere. A controller operates the vacuum pump to evacuate the discharge vessel, obtains an evacuated weight of the discharge unit, operates the first valve to open to fill the discharge vessel with refrigerant, obtains a filled weight of the discharge unit, operates the vent valve to vent refrigerant from the discharge vessel, obtains a vented weight of the discharge unit, and determines a mass of refrigerant vented based upon the stored evacuated, filled, and vented weights.

Abstract: A cryopump includes a radiation shield, a top cryopanel, and a bottom cryopanel. The radiation shield includes a shield main slit that communicates a shield outside gap into a shield cavity. The top cryopanel includes a top cryopanel outer circumferential end located axially above the shield main slit. The bottom cryopanel includes a bottom cryopanel outer circumferential end located axially below the shield main slit. An annular vacant space is formed between the top cryopanel outer circumferential end and the bottom cryopanel outer circumferential end and the top cryopanel outer circumferential end is directly opposed to the bottom cryopanel outer circumferential end with the annular vacant space interposed therebetween.

Abstract: A refrigerator includes a main body having a food storage space therein, a door installed on the main body and configured to have an ice compartment therein and to close the food storage space, a compressor, a condenser, and an expansion valve that are installed in the door, and an ice generator installed in the ice compartment. The ice generator includes a tray configured to receive and contain water therein, a refrigerant pipe line configured to connect the compressor, the condenser, and the expansion valve to each other and cool the tray by conduction, and one or more lock rings configured to connect in an airtight fashion the refrigerant pipe line to the compressor, the condenser, and the expansion valve.

Abstract: A cryopump controller includes a regeneration controller that controls a cryopump in accordance with a regeneration sequence including a condensate discharging process being continued until a discharging completion condition based on pressure in the cryopump is met. The regeneration controller includes a first determiner repetitively determining whether the discharging completion condition is met, a second determiner determining whether the number of times of determination for the completion condition or a period of time for which the discharging process continues is equal to or larger than a threshold value, and a temperature controller performing preliminary cooling of the cryopump if the number of times of determination for the completion condition or the period of time for which the discharging process continues is equal to or larger than the threshold value. The first determiner re-determines during the preliminary cooling whether the completion condition is met.

Abstract: Apparatus for use in a treatment of fluid in a fluid circuit of a heating or cooling system. A vessel (102) defines an open upper end (104), a circulating fluid inlet port (104) in a side wall (105) thereof and a fluid outlet port (106) in a lower end (107) thereof, the lower end (107) providing an internal floor of the vessel (102) and the fluid outlet port (106) open to the internal floor of the vessel (102). The open upper end (103) of the vessel (102) is provided with a removable lid (108) that defines a dosing port (109) and an air vent port (110). A permanent magnet collector (112) for collecting magnetic particles on an external collection surface (113) thereof is removably locatable within the vessel (102). A method of treating fluid in a fluid circuit of a heating or cooling system.

Abstract: A flow control system for a flow of a cryogenic fluid over a component is provided. The system includes a first tubing containing a first fluid therein and positioned upstream of the component with respect to the flow of the cryogenic fluid. The system includes a second tubing containing a second fluid therein and positioned downstream of the component with respect to the flow of the cryogenic fluid. The system also includes a parameter sensing device fluidly connected to the first tubing and the second tubing for comparing a first parameter associated with the first tubing and a second parameter associated with the second tubing. The system further includes a flow control device coupled to the parameter sensing device to regulate the flow of the cryogenic fluid over the component based, at least in part, on the comparison.

Abstract: An air conditioning system has an air conditioning thermal storage that includes one or more thermal plates. The one or more thermal plates have a first side and a second side separated by a thermally conductive plate (e.g. metal such as aluminum or copper). The first side of each of the one or more thermal plates has a primary input orifice and a primary output orifice. The second side of each of the one or more thermal plates has a secondary input orifice and a secondary output orifice. The first side of each of the one or more thermal plates is fluidly isolated from the second side of each of the one or more thermal plates providing for thermal conduction between such. The thermal plates are at least partially immersed in a material (e.g. antifreeze, vegetable beetroot) for storing cold heat.