Abstract: A refrigerant circuit (10) is formed by connecting, in the order given, a compressor (11), a four-way selector valve (12), an outdoor heat exchanger (13), an expansion valve (14), and an indoor heat exchanger (15) by a gas side pipe (31) and a liquid side pipe (32). The refrigerant circuit (10) is charged with a single refrigerant of R32 or with an R32/R125 mixed refrigerant whose R32 content is not less than 75% by weight. As an insulating material of an electric motor of the compressor (11), a resin material is used, and as an refrigeration oil a synthetic oil is used. When cooling rated capacity is not more than 5 kW, the liquid side pipe (32) is formed by use of a pipe whose inside diameter is less than 4.75 mm.

Abstract: A measurement body is provided with a sub-outlet arranged between a U-turn portion of a bypass passage and a main outlet. The sub-outlet includes a first sub-outlet positioned on a path of air, which flows on the inside of the bypass passage, and a second sub-outlet positioned on a path of air, which flows on the outside of the bypass passage. The respective sub-outlets open in a sidewall surface of the measurement body along the thickness-wise direction. However, the first sub-outlet and the second sub-outlet are arranged in different positions with respect to the flow direction of measurement air. With this structure, a substantial length of the bypass passage can be adjusted in accordance with positions of the first sub-outlet and the second sub-outlet, so that compensation of intake pulsation is enhanced in accuracy. Thereby, measurement error caused by influences of intake pulsation can be reduced.

Abstract: A sensing unit is constructed of a heater element and a temperature sensing element. The sensing unit is arranged in a region, in which measurement air, which flows into the inflow passage through the bypass inlet, bends at the substantially right-angle and contracts in flow. Alternatively, the sensing unit is arranged in a region immediately after an area, in which the measurement air flowing through the bypass inlet bends at the substantially right-angle. The lengthwise directions of the heater element and the temperature sensing element are respectively arranged to be in parallel with both thickness-wise side faces of the measurement body. Thereby, even when a flow rate of measurement air changes, an influence due to the change can be restricted from being exerted. Therefore, the maximum flow rate can be measured within the lengthwise range of the heater element from a low flow rate to a high flow rate.

Abstract: An airflow meter has a bypass passage disposed in an air passage and a sensing portion disposed in the bypass passage to detect an airflow amount. The bypass passage is provided with a restriction portion to gradually decrease a passage width of the bypass passage in an airflow direction in the bypass passage. The restriction portion includes a first restriction portion and the second restriction portion disposed at an immediately downstream side of a narrowest portion of the first restriction portion. The first restriction portion gradually decreases the passage width in the airflow direction. The second restriction portion increases the passage width than the passage width at the narrowest portion in a stepped manner. The sensing portion is located in a bound in which the restriction portion is disposed.

Abstract: The scanning device includes a reading unit for reading texts, a display unit for controlling an operation panel, a network controlling unit for controlling a network function connected to a local area network, a mail function unit, an HTTP function unit, and a device controlling unit. The mail function unit realizes a mail sending function by using the network controlling unit. The HTTP function unit, using an HTTP protocol, sends and receives such information as resolution for reading texts, paper size, encoding system, button names which are information for distinguishing the texts, and computer address information by using the network controlling unit. The device controlling unit controls the reading unit, the mail function unit, and the HTTP function unit and includes a data storage unit which stores information assigned by a computer and image files read by the reading unit.

Abstract: A gas is generated from a printing plate by exposure of the printing plate. A gas diffusing suction unit jets air from air jet ports to diffuse the gas generated from the printing plate by irradiation of laser light. The gas diffused by the air is sucked along with the air from a gas suction opening of the gas diffusing suction unit. At this time, a gas suction velocity is set to 1.2 or more times an air jet velocity to suck the gas/air efficiently. The gas/air may be sucked efficiently by setting a volume of suction to 30 or more times a volume of air jet.

Abstract: An optical fiber connecting unit includes a first and a second support members 33 and 34 hinged to a fixed member 37 to be swingable about a common axis 38. The first and second support members 33 and 34 are movable between a position for aligning in an alternating arrangement, and a position for separating from each other, adaptors 31 supported by the first support member 33 and adaptors supported by the second support member.

Abstract: A slack storage assembly for storing optical fibers 11 includes fixed plates 51 disposed in horizontal posture, first movable plates 52 disposed parallel to the fixed plates 51 to be movable toward and away from the fixed plates 51, and second movable plates 53 disposed parallel to the first movable plates 52 to be movable toward and away from the first movable plates 52. The optical fibers 11 are fixed as pinched between the fixed plates 51 and first movable plates 52 and between the first movable plates 52 and second movable plates 53.

Abstract: Moisture in a refrigeration circuit is absorbed by means of a polyvinyl ether oil that has hygroscopicity and serves as a refrigerating machine oil. Therefore, even if a compressor comes to have an elevated temperature attributed to the employment of a refrigerant made of a single substance of R32, the insulating film of the built-in motor of the compressor is hard to hydrolyze. Moreover, by setting a saturated moisture amount of polyvinyl ether at a temperature of 30° C. and a relative humidity of 80% to 5000 ppm or more, a tensile strength retention rate of the motor insulating film made of PET or PEN, which can easily be processed, can be set to 50% or more, by which the deterioration of the insulating film can be prevented. Therefore, the performance of the refrigerating apparatus can be stabilized for a long term by avoiding the breakdown of the compressor.

Abstract: A digital filter having a small amount of hardware is realized by constructing a cosine roll-off filter. In the filter the first and fifth multipliers and the second to fourth multipliers are respectively shared. Three selectors are provided corresponding to the multipliers, and coefficient groups ka1 to ka3, and kb1 and kb3 are inputted by the selectors to the corresponding multipliers by time sharing. The results of multiplications by the multipliers when the coefficient groups kb1 to kb3 are inputted, are added between corresponding multipliers by adders. A final output is derived from an output selector.

Abstract: A refrigerant circuit (10) is formed by connecting, in the order given, a compressor (11), a four-way selector valve (12), an outdoor heat exchanger (13), an expansion valve (14), and an indoor heat exchanger (15) by a gas side pipe (31) and a liquid side pipe (32). The refrigerant circuit (10) is charged with a single refrigerant of R32 or with an R32/R125 mixed refrigerant whose R32 content is not less than 75% by weight. As an insulating material of an electric motor of the compressor (11), a resin material is used, and as an refrigeration oil a synthetic oil is used. When cooling rated capacity is not more than 5 kW, the liquid side pipe (32) is formed by use of a pipe whose inside diameter is less than 4.75 mm.

Abstract: An optical fiber connecting unit includes a first and a second support members 33 and 34 hinged to a fixed member 37 to be swingable about a common axis 38. The first and second support members 33 and 34 are movable between a position for aligning in an alternating arrangement, and a position for separating from each other, adaptors 31 supported by the first support member 33 and adaptors supported by the second support member.

Abstract: A slack storage assembly for storing optical fibers 11 includes fixed plates 51 disposed in horizontal posture, first movable plates 52 disposed parallel to the fixed plates 51 to be movable toward and away from the fixed plates 51, and second movable plates 53 disposed parallel to the first movable plates 52 to be movable toward and away from the first movable plates 52. The optical fibers 11 are fixed as pinched between the fixed plates 51 and first movable plates 52 and between the first movable plates 52 and second movable plates 53.

Abstract: There is obtained a lubricating oil having good solubility with both HFC refrigerant and contaminants by adding PAG having a viscosity of not more than 70 cSt (40° C.) to a synthetic lubricating oil, such as polyvinyl ether and ester oils at an amount of not less than 0.1 wt % and not more than 20 wt % (desirably, not less than 20 wt % and not more than 10 wt %). Therefore, in a refrigerating/air-conditioning machine equipped with a compressor using this present lubricating oil together with a HFC refrigerant as a working fluid, deflection in the ratio of the mixture within the machines is not caused and, consequently, the efficiency for washing capillary tubes is not reduced. In that case, a high-reliable refrigerating/air-conditioning machine can be obtained at a low price without any modification of the refrigerating/air-conditioning machine.

Abstract: Moisture in a refrigeration circuit is absorbed by means of a polyvinyl ether oil that has hygroscopicity and serves as a refrigerating machine oil. Therefore, even if a compressor comes to have an elevated temperature attributed to the employment of a refrigerant made of a single substance of R32, the insulating film of the built-in motor of the compressor is hard to hydrolyze. Moreover, by setting a saturated moisture amount of polyvinyl ether at a temperature of 30° C. and a relative humidity of 80% to 5000 ppm or more, a tensile strength retention rate of the motor insulating film made of PET or PEN, which can easily be processed, can be set to 50% or more, by which the deterioration of the insulating film can be prevented. Therefore, the performance of the refrigerating apparatus can be stabilized for a long term by avoiding the breakdown of the compressor.

Abstract: Rotational force of a driving motor is transferred to a photosensitive drum via a planetary-roller reduction device, so that the photosensitive drum is rotated. A speed detector set on the shaft of the photosensitive drum detects the rotational speed of the photosensitive drum. In accordance with the detected rotational speed of the photosensitive drum, the rotational speed of the driving motor is adjusted so that the photosensitive drum is rotated at a constant speed.

Abstract: Rotational force of a driving motor is transferred to a photosensitive drum via a planetary-roller reduction device, so that the photosensitive drum is rotated. A speed detector set on the shaft of the photosensitive drum detects the rotational speed of the photosensitive drum. In accordance with the detected rotational speed of the photosensitive drum, the rotational speed of the driving motor is adjusted so that the photosensitive drum is rotated at a constant speed.

Abstract: A luminescence controlling apparatus includes a rare gas pipe equipped with a pair of electrodes in which rare gas is sealed, a power supply for impressing voltage to the pair of electrodes and an electric charge absorption member for absorbing electrons generated during electric discharge of the rare gas pipe caused by impressing voltage to the pair of electrodes. The absorption member is disposed in the rare gas pipe. The luminescence controlling apparatus further includes a controller for controlling a luminescence amount of the rare gas pipe by adjusting a quantity of electrons absorbed by the electric charge absorption member.

Abstract: In a quadrature amplitude modulation signal demodulation circuit including first and second delay circuits for receiving an I-axis component and an Q-axis component of a baseband signal, a tap coefficient calculating circuit for calculating first tap coefficients in accordance with the delayed I-axis component and second tap coefficients in accordance with the delayed Q-axis component, an interference detection circuit for detecting a center of an interference signal included in the baseband signal, a control circuit for controlling delay time periods of the first and second delay circuits in accordance with an output signal of the interference detection circuit, first and second equalizers for equalizers the I-axis component and the Q-axis component in accordance with the first and second tap coefficients, and an adder for adding the output signals the first and second transversal equalizers, the interference detection circuit is constructed by a plurality of absolute value adders, each for adding an absolut

Abstract: The scanning device according to the present invention includes a reading unit for reading texts, a display unit for controlling an operation panel, a network controlling unit for controlling a network function connected to a local area network, a mail function unit, an HTTP function unit, and a device controlling unit. The mail function unit realizes a mail sending function by using the network controlling unit. The HTTP function unit, using an HTTP protocol, sends and receives such information as resolution for reading texts, paper size, encoding system, button names which are information for distinguishing the texts, and computer address information by using the network controlling unit. The device controlling unit controls the reading unit, the mail function unit, and the HTTP function unit and includes a data storage unit which stores information assigned by a computer and image files read by the reading unit.