Abstract: A refrigerant compressor (100) includes: a sealed vessel (103); a compression mechanism (101) that sucks refrigerant, sucked in the sealed vessel (103), for compression; a motor (102) that drives the compression mechanism (101); a suction pipe (104) for sucking the refrigerant into the sealed vessel (103) when sucking the refrigerant; a cover (117a) arranged to face an outlet of the suction pipe (104), to force the refrigerant sucked through the suction pipe (104) to collide against the cover for gas-liquid separation, and to allow liquid refrigerant from the separation to drop on a coil (126) of the motor (102); and a suction passage (118) that introduces gas refrigerant from the gas-liquid separation, for which the refrigerant sucked through the suction pipe is forced to collide against the cover (117a), to an inlet of the compression chamber provided in the compression mechanism (101).

Abstract: A refrigerant compressor (100) includes: a sealed vessel (103); a compression mechanism (101) that sucks refrigerant, sucked in the sealed vessel (103), for compression; a motor (102) that drives the compression mechanism (101); a suction pipe (104) for sucking the refrigerant into the sealed vessel (103) when sucking the refrigerant; a cover (117a) arranged to face an outlet of the suction pipe (104), to force the refrigerant sucked through the suction pipe (104) to collide against the cover for gas-liquid separation, and to allow liquid refrigerant from the separation to drop on a coil (126) of the motor (102); and a suction passage (118) that introduces gas refrigerant from the gas-liquid separation, for which the refrigerant sucked through the suction pipe is forced to collide against the cover (117a), to an inlet of the compression chamber provided in the compression mechanism (101).

Abstract: An air conditioning apparatus comprises an air-conditioning unit including at least a cooling coil as a heat exchanger, a blower, a chiller, and a coolant pump for conducting air-conditioning, wherein the coolant pump pumps the coolant cooled by the chiller to the cooling coil, the cooling coil cools the air through heat exchange of the coolant and the air, the blower supplies the cooled air into a room. Coolant temperature of the chiller, the coolant flow rate of the coolant pump, and the air flow rate of the blower are calculated in accordance with the set points of the indoor temperature and the indoor humidity, and the chiller, coolant pump, and blower are controlled on the basis of the arithmetic calculation results. Thereby, the indoor temperature and indoor humidity are independently controlled in the central air-conditioning system.

Abstract: In an optical disk apparatus for recording and/or reading information with respect to an optical disk, comprising, a chassis for containing the optical disk, and a tray being movable with respect to the chassis and adapted to support the optical disk thereon so that the optical disk is movable with respect to the chassis, the chassis has an opening for discharging an air from an inside of the chassis to an outside of the chassis through the opening.

Abstract: A disc drive unit capable of preventing occurrence of errors in a recording system such as a CD or a DVD, using an optical head for recording data on a disc or reproducing data recorded on the disc. A disc tray is adapted to accommodate the disc, and load and unload the disc. A top cover is arranged above the disc. The top cover is formed therein with a concave and convex part for avoiding positioning a node of each of vibration modes (0, n) (where n=2, 3, 4) caused by a critical rotating speed of the disc, at a position right above the optical head.

Abstract: A control server includes a device information database storing device characteristic data constituting the air conditioning equipment, a fuel/power rate database storing price and rate data regarding gas, oil, power and the like, a device characteristic and price database, an air conditioning equipment simulator for calculating running costs by using the data stored in the fuel/power rate database, and communication portion for performing communications through a network. The control server, and an air conditioning management controller for managing and controlling the air conditioning equipment provided with the communication portion for performing communications through the network, are connected to the network.

Abstract: An air conditioning apparatus comprises an air-conditioning unit including at least a cooling coil as a heat exchanger, a blower, a chiller, and a coolant pump for conducting air-conditioning, wherein the coolant pump pumps the coolant cooled by the chiller to the cooling coil, the cooling coil cools the air through heat exchange of the coolant and the air, the blower supplies the cooled air into a room. Coolant temperature of the chiller, the coolant flow rate of the coolant pump, and the air flow rate of the blower are calculated in accordance with the set points of the indoor temperature and the indoor humidity, and the chiller, coolant pump, and blower are controlled on the basis of the arithmetic calculation results. Thereby, the indoor temperature and indoor humidity are independently controlled in the central air-conditioning system.

Abstract: In an optical disk apparatus for recording and/or reading information with respect to an optical disk, comprising, a chassis for containing the optical disk, and a tray being movable with respect to the chassis and adapted to support the optical disk thereon so that the optical disk is movable with respect to the chassis, the chassis has an opening for discharging an air from an inside of the chassis to an outside of the chassis through the opening.

Abstract: An optical disk apparatus includes a spindle motor for rotating the optical disk. The optical pickup device records or reproduces information into/from the optical disk, and a guide shaft 6 guides the optical pickup device in a radius direction of the optical disk. The optical disk is transferred by a disk tray 3. The disk tray and the optical pickup device 7 etc. are contained in a casing 1. A heat storage device 10, a phase of which is changed in an operating state of the optical disk apparatus, is arranged in a casing.

Abstract: A disc drive unit capable of preventing occurrence of errors in a recording system such as a CD or a DVD, using an optical head for recording data on a disc or reproducing data recorded on the disc. A disc tray is adapted to accommodate the disc, and load and unload the disc. A top cover is arranged above the disc. The top cover is formed therein with a concave and convex part for avoiding positioning a node of each of vibration modes (0, n) (where n=2, 3, 4) caused by a critical rotating speed of the disc, at a position right above the optical head.

Abstract: A control server includes a device information database storing device characteristic data constituting the air conditioning equipment, a fuel/power rate database storing price and rate data regarding gas, oil, power and the like, a device characteristic and price database, an air conditioning equipment simulator for calculating running costs by using the data stored in the fuel/power rate database, and communication portion for performing communications through a network. The control server, and an air conditioning management controller for managing and controlling the air conditioning equipment provided with the communication portion for performing communications through the network, are connected to the network.

Abstract: A control server includes a device information database storing device characteristic data constituting the air conditioning equipment, a fuel/power rate database storing price and rate data regarding gas, oil, power and the like, a device characteristic and price database, an air conditioning equipment simulator for calculating running costs by using the data stored in the fuel/power rate database, and communication portion for performing communications through a network. The control server, and an air conditioning management controller for managing and controlling the air conditioning equipment provided with the communication portion for performing communications through the network, are connected to the network.

Abstract: A control server includes a device information database storing device characteristic data constituting the air conditioning equipment, a fuel/power rate database storing price and rate data regarding gas, oil, power and the like, a device characteristic and price database, an air conditioning equipment simulator for calculating running costs by using the data stored in the fuel/power rate database, and communication portion for performing communications through a network. The control server, and an air conditioning management controller for managing and controlling the air conditioning equipment provided with the communication portion for performing communications through the network, are connected to the network.

Abstract: An air-conditioning operation management company provides control information concerning air-conditioning equipments to a plurality of semiconductor manufacturing factories. The air-conditioning operation management company stores a measured result of an outside-air condition measuring unit in a past outside-air condition record database and obtains forecasted maximum temperature information on-that day from a weather forecast providing system. An outside-air condition transition forecasting unit forecasts all, transition of the outside-air condition on that day on the basis of the forecasted maximum temperature information. Information stored in an air-conditioning thermal load database, an air-conditioning equipment characteristic database and a set-temperature-and-humidity-of-air-conditioning-equipment database are employed to provide an optimum operation method of the air-conditioning equipments to the semiconductor manufacturing factories.

Abstract: In an electric appliance renting system, a use contractor leases an e-information terminal together with an e-air conditioner, an e-refrigerator and an e-television from a service providing company. The work information of these electric appliances is sent from the e-information terminal to a rent managing server, which the service providing company possesses, through the Internet. The rent managing server sends the data relating to the rent inclusive of the electric power rate of the rented electric appliances to the e-information terminal.

Abstract: An air-conditioning operation management company provides control information concerning air-conditioning equipments to a plurality of semiconductor manufacturing factories. The air-conditioning operation management company stores a measured result of an outside-air condition measuring unit in a past outside-air condition record database and obtains forecasted maximum temperature information on that day from a weather forecast providing system. An outside-air condition transition forecasting unit forecasts a transition of the outside-air condition on that day on the basis of the forecasted maximum temperature information. Information stored in an air-conditioning thermal load database, an air-conditioning equipment characteristic database and a set-temperature-and-humidity-of-air-conditioning-equipment database are employed to provide an optimum operation method of the air-conditioning equipments to the semiconductor manufacturing factories.

Abstract: Fluid containing organic substances, which has not processed yet, is fed to a plurality of cylinders, using a slurry pump. A free piston is included in each cylinder, the fluid which has not yet been processed is introduced into one of two chambers in the cylinder partitioned by the piston, and processed high-pressure fluid which has been processed is introduced into the other one of the two chamber in the cylinder. The piston pressurizes the fluid with which the cylinder has been filled up. A pressure holding valve is provided in a processed high-pressure fluid system to pressurize an organic substance processing system, and this pressure holding valve suppresses changes in the pressure in the processed high-pressure fluid system.