Abstract: The invention relates to a heating and air-conditioning system (10) for a motor vehicle, in particular a utility vehicle, in order to heat or cool the inside of a motor vehicle during a journey and when the motor vehicle is stationary. The inside of the motor vehicle is divided into a front region and a back region, which can be heated and cooled separately, and comprises a front system (12) which is used to heat and cool the front region during a journey of the motor vehicle, a rear system (14) which is used to heat and cool the rear region during a journey of the motor vehicle and a stationary system (16) which is used to heat and to cool at least the rear region when the motor vehicle is stationary. According to the invention, the stationary system is integrated into the rear system. The invention further relates to a method for heating and air-conditioning a motor vehicle by means of a heating and air-conditioning system (10).

Abstract: A device and a method for a controlling compressor of vehicles may include a cabin temperature sensor, an outdoor temperature sensor, an evaporator temperature sensor, an engine speed sensor, and a throttle position sensor detecting a throttle opening, a condenser, an evaporator, a temperature control door controlling a temperature of an air flowed in a cabin, an intake door selectively flowing an inner air or an outer air in the cabin, and a blower blowing the air to the intake door, and a controller controlling an operation of the air conditioning system, wherein the controller decides a acceleration mode and an allowable temperature at each acceleration mode when an acceleration condition occurs, and decreases an operation of the compressor according to a difference between the evaporator temperature and the allowable temperature.

Abstract: A thermostatic valve assembly for a cooling system of an internal combustion engine provided with a radiator is provided. The thermostatic valve assembly includes a valve body having an inlet from the radiator, an inlet from the engine and an outlet to the engine. A main valve plate opens and closes the pathway of a cooling fluid from the radiator. A wax element is placed in a chamber of the valve body in fluid communication with the inlets and the outlet. The wax element has a piston mechanically connected to the main valve plate at a distal end. A main spring keeps the main valve plate closed until a target temperature of the cooling fluid coming from the engine is reached. An auxiliary valve plate opens and closes a direct pathway of the cooling fluid from the radiator to the chamber in which the wax element is placed.

Abstract: A modular computing system for a data center includes one or more data center modules including rack-mounted computer systems. An electrical module is coupled to the data center modules and provides electrical power to computer systems in the data center modules. One or more air handling modules are coupled to the data center modules. The data center module may include two pre-fabricated portions, each portion including a row of racks of computer systems. The two computing module portions of the data center module may combine to form a computing space when coupled to one another.

Abstract: A modular computing system for a data center includes one or more data center modules including rack-mounted computer systems. An electrical module is coupled to the data center modules and provides electrical power to computer systems in the data center modules. One or more air handling modules are coupled to the data center modules. The data center module may include two pre-fabricated portions, each portion including a row of racks of computer systems. The two computing module portions of the data center module may combine to form a computing space when coupled to one another.

Abstract: An air conditioning device is used in a motor vehicle. The air conditioning device includes air conditioning circuit, which includes a compressor (14), a condenser (11), and/or an internal exchanger, an electric expansion valve (12) which opening ratio is changed according to a control signal, and an evaporator (13), which are traversed in this order by a refrigerant fluid and a control unit (40) capable of controlling a control signal of the expansion valve so as to regulate a control variable relating to the superheating of the evaporator or to the sub-cooling of the condenser (11) according to a chosen regulation rule.

Abstract: The present invention is a method of regulating a refrigeration device by storing thermal energy during non-peak hours for use during peak hours in order to shift refrigeration device operation to non-peak hours. In a first iteration, a real-time temperature of the refrigeration device is cooled to a target temperature over a first time duration. The refrigeration device compressor and fan are disabled over a second time duration and the real-time temperature is allowed to slowly rise, never exceeding an established maximum temperature. The real-time temperature is periodically monitored over the first time duration and the second time duration and adjustments are made for a subsequent iteration if the target temperature is reached before the end of the first time duration, if the target temperature is not reached during the first time duration, and if the maximum temperature is reached during the second time duration.

Abstract: A method of compensating for thermal lag in a temperature control system is performed by a controller of the temperature control system. The method includes receiving a first temperature obtained by a temperature sensing device at an end of a temperature control cycle. A second temperature obtained by the temperature sensing device is received at a pre-defined time after the end of the temperature control cycle. The method includes changing an operational set-point temperature of the temperature control system using a difference between the received temperatures.

Abstract: A user-friendly programmable thermostat is described that includes receiving an immediate-control input to change set point temperature, controlling temperature according to the set point temperature for a predetermined time interval, and then automatically resetting the set point temperature upon the ending of the predetermined time interval such that the user is urged to make further immediate-control inputs. A schedule for the programmable thermostat is automatically generated based on the immediate-control inputs. Methods are also described for receiving user input relating to the user's preference regarding automatically generating a schedule, and determining whether or not to automatically adopt an automatically generated schedule based on the received user input.

Abstract: The present invention relates to a dual zone type air conditioner for vehicles, which includes two air volume controlling doors mounted on an air inflow port of an air-conditioning case where the cross section of an air passageway is uniform and a flow of air is relatively uniform, a sealing wall mounted between the air volume controlling doors, and a controlling part mounted for selecting a more air volume side as a level of a blower when an air volume set by a driver and an air volume set by a passenger are different from each other and controlling the air volume controlling doors to supply the set air volumes to a driver's seat side and a passenger's seat side.

Abstract: A cooling unit constructed in accordance with one example of the present disclosure includes an outer shell that defines an interior volume. A cooling system cools the interior volume. A temperature sensor senses a temperature within the interior volume. A heating element is disposed within the interior volume. A controller communicates with the temperature sensor and the heating element and activates the heating element based on the temperature satisfying a threshold.

Abstract: A system for controlling an absorption chiller includes feedback control loops determining adjustments to system cooling and heating capacities and a controller for simultaneously adjusting positions of an energy input valve, a hot water valve, and a chilled water valve. The controller adjusts valves based on desired adjustments to system cooling and heating capacities and performance maps characterizing relationships between cooling capacity and heating capacities and valve positions. A method for controlling an absorption chiller includes the step of obtaining a performance map characterizing heat energy input to cooling and heating loops as functions of valve positions. To obtain the map, the hot water valve is held in a substantially constant position while the chilled water valve is modulated. Similarly, the hot water valve is modulated while the chilled water valve is held in a substantially constant position.

Abstract: The present invention discloses a linear compressor which can rapidly overcome load and improve compression efficiency, by synchronizing an operation frequency of a linear motor with a natural frequency of a movable member varied by the load and varying a stroke of the movable member according to the load. The linear compressor includes a fixed member having a compression space inside, a movable member linearly reciprocated in the fixed member in the axial direction, for compressing refrigerants sucked into the compression space, one or more springs installed to elastically support the movable member in the motion direction of the movable member, spring constants of which being varied by load, and a linear motor installed to be connected to the movable member, for linearly reciprocating the movable member in the axial direction, and varying a stroke of the movable member according to a predetermined refrigeration force, so that the movable member can be linearly reciprocated to reach a top dead center.

Abstract: An air conditioner is provided with a plurality of outdoor heat source units, an indoor unit, a liquid refrigerant communication pipe and gas refrigerant communication pipe, and a controller. Each heat source unit has a compressor, an outdoor heat exchanger, and an accumulator. The indoor unit has an indoor expansion valve and an indoor heat exchanger. The controller starts an other of the heat source units in a stopped state when it is determined that the amount of refrigerant is excessive in a first heat source unit in an operating state.

Abstract: There is provided a space heating system (100) that includes a heat pump (105), a supplemental gas heating system (110), and a controller (115) connected to the heating system (100). The controller (115) controls a switching set point, which in its simplest case is an ambient temperature at which the controller (115) switches between operation of the heat pump (105) and operation of the supplemental gas heating system (110). The controller (115) is connected to a real time source of information (195) providing at least one of current electricity prices and current prices of a source of heating such as gas, and changes the switching set point in response to changes in at least one of the electricity prices and the gas prices. There is also provided a method for control of the heating system (100).

Abstract: A refrigerator appliance configuration, and associated methods of operation, for an appliance with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The controller, by operation of the compressor, fans, damper and/or valve system, depending on the appliance configuration, controls the cooling rate in one or both compartments to synchronize, alternating cycles of cooling the compartments to their set point temperatures.

Abstract: A refrigerator appliance configuration, and associated methods of operation, for an appliance with a controller, a condenser, at least one evaporator, a compressor, and two refrigeration compartments. The configuration may be equipped with a variable-speed or variable-capacity compressor, variable speed evaporator or compartment fans, a damper, and/or a dual-temperature evaporator with a valve system to control flow of refrigerant through one or more pressure reduction devices. The controller, by operation of the compressor, fans, damper and/or valve system, depending on the appliance configuration, synchronizes alternating cycles of cooling each compartment to a temperature approximately equal to the compartment set point temperature.

Abstract: An air conditioner includes: a heat source-side unit having a compressor, a heat source-side heat exchanger, a first throttle device and a super-cooling heat exchanger; a load-side unit having a second throttle device and a load-side heat exchanger; a switching device for switching connections of discharge and intake sides of the compressor between the heat source-side unit and the load-side unit; a refrigerant reservoir supplying refrigerant and connected to a refrigerating cycle between the first throttle device of the heat source-side unit and the heat source-side heat exchanger through a refrigerant filling switch valve; and a controller controlling the switching device, the first throttle device, the second throttle device and refrigerant filling switch valve.

Abstract: A modular computing system for a data center includes one or more data center modules including rack-mounted computer systems. An electrical module is coupled to the data center modules and provides electrical power to computer systems in the data center modules. One or more air handling modules are coupled to the data center modules. The data center module may include two pre-fabricated portions, each portion including a row of racks of computer systems. The two computing module portions of the data center module may combine to form a computing space when coupled to one another.

Abstract: An ice detecting apparatus for an ice maker provided in a refrigerator includes an ice maker, and an ice detecting sensor attached to the ice maker and detecting an amount of ice collected in an ice container. The ice detecting sensor includes at least one optical transmitter or emitter provided on one side of the ice maker and at least one receiver at another side of the ice maker. The optical transmitter and receiver are separated by a prescribed distance and, at least one heater is provided to generate heat to be transferred to at least one of the optical transmitter or receiver.