36results about How to "Efficient air conditioning" patented technology

The invention relates to a heat exchanger arrangement for heating of air, with a heat exchanger (8) which is integrated into a refrigerant circuit (60), configured to be able to have refrigerant flow through it and able to be impinged on by air. The heat is transferred from the refrigerant to the air. The heat exchanger (8) exhibits two components (8a, 8b) configured to be segregated from each other. The first component (8a) is configured with a condensation surface and a heat-removal surface. The second component (8b) exhibits a supercooling surface. Between the components (8a, 8b) on the refrigerant side, a refrigerant phase separation element is placed. The heat exchanger is configured as a tubular heat exchanger with tubes situated in rows, wherein the first component (8a) is configured with at least two rows and the second component (8b) with at least one row.

The present invention provides a system that allows for a single panel of the invention to be easily modified, preferably without the use of tools, to fit on a server rack, where the single panel is so modified as to cover the desired amount of open space on a server rack as a single piece, where the panel is preferably fire-rated, and where the modified panel may be easily installed onto the server rack to as to cover any open space thereon, and prevents the circular flow of warm air output from entering the cooler air input of the servers housed on the server rack.

A system for detecting an occupant in a vehicle includes a proximity sensor installed at a back of a seat and detecting an object. An automotive key locks and unlocks a door. A starter starts and stops an engine of the vehicle. A controller is configured to determine whether the occupant is in the seat based sensor values of the proximity sensor, a door unlock signal from the automotive key, and a starting signal from the starter.

An air conditioning apparatus for a hydraulic shovel with which a wide space in a cab can be secured and a placement operation of ducts for distributing wind to each important point in the cab is facilitated. For this purpose, in the air conditioning apparatus, an air-conditioning unit (21) is placed at a front portion of a right side in a cab (10). The air-conditioning unit (21) is mounted to a front portion of a right side wall surface (51) of the cab (10). The air-conditioning unit (21) is mounted to the right side wall surface (51) of the cab (10) to be capable of being taken in and out from an inside and an outside of the cab (10).

A cover is provided on one surface of a rack of an electronic device provided with an outlet, and includes a sheet that guides exhaust air exhausted from the outlet in one direction along the one surface. An electronic device rack and an air conditioning system are also disclosed.

An air blowing device includes a housing, a partition plate, an air blower, dampers, and a controller. The housing has a first side surface and a second side surface. The first side surface has inlet A and outlet A. The second side surface has inlet B and outlet B. The partition plate divides the hollow space of the housing into an upstream section and a downstream section. The upstream and downstream sections communicate with each other. The air blower conveys air from the upstream section to the downstream section. The dampers open and close the openings of inlets A and B, and outlets A and B. The controller controls air blowing of the air blower and opening and closing of each damper. Inlets A and B are disposed in the upstream section. Outlets A and B are disposed in the downstream section.

The invention relates to a refrigerant circuit (10) of a vehicle air-conditioning system (12), in particular for electric vehicles, comprising a compressor unit (14) which includes a first compressor (16) and a second compressor (18) arranged downstream for compressing a refrigerant (20), a condenser (22) for heating air (24) which can be supplied to a vehicle interior, a first pressure reducing unit (26) arranged downstream of the condenser (22) for decompressing the refrigerant (20) from the condenser (22), a heat exchanger (28) through which refrigerant flows for heat exchange with vehicle ambient air (30), an evaporator (32) for cooling air (24) which can be supplied to a vehicle interior, and a second pressure reducing unit (34) arranged upstream of the evaporator (32) for decompressing the refrigerant (20) from the heat exchanger (28), the second compressor (18), the condenser (22) and the first pressure reducing unit (26) being bypassed in a cooling mode of the vehicle air-conditioning system (12), and the evaporator (32) and the second pressure reducing unit (34) being bypassed in a heating mode of the vehicle air- conditioning system (12).The invention furthermore relates to a method of air-conditioning a vehicle interior, in particular by means of the refrigerant circuit (10) described above.

The invention discloses a temperature adjusting system for closed heating space under full work conditions. The temperature adjusting system for closed heating space under full work conditions comprises a refrigerating system, a ventilating system, a heating system and an electronic control system, wherein the refrigerating system comprises a compressor, a condenser, a liquid storage device, a filter, an expansion valve and an evaporator; the ventilating system comprises an air return system, a fresh air inlet system, an exhaust system, an evaporation fan, a condensing fan and closed space; the heating system comprises an electric heating device; the electronic control system comprises a control unit and a protecting system; and the protecting system comprises a temperature sensor A and a temperature sensor B. The temperature adjusting system for closed heating space under full work conditions has the characteristics of simple structure, easiness in implementation, small numbers of equipment and assemblies, high efficiency, low cost, convenience in repair and high efficiency, can normally work in an environment at the temperature of minus 45-60 DEG C, can refrigerate to cool circularly under the condition that the environment temperature is high, can circularly cool in an air-cooled manner under the condition that the environment temperature is relatively low, and can heat under the condition that the temperature is low.

Proposed is an air conditioning assembly of a vehicle seat. The air conditioning assembly includes a housing provided in a vehicle seat, in which air flows in an internal space of the housing and the air is discharged to a seating surface of the seat, and an air cleaner provided in the internal space of the housing and configured to selectively sterilize or deodorize the air flowing in the internal space of the housing by rotating according to an air conditioning mode.