Abstract: Disclosed is a solar radiation sensor apparatus. A light-blocking plate is provided above the light-receiving surface of a photoelectric element, and has an area smaller than the area of the light-receiving surface. The incident angle sensitivity characteristic of the sensor apparatus can be improved without involving any increase in the external dimensions of the sensor apparatus.

Abstract: An apparatus and method for deodorizing a gas mixture including air and a malodorous substance having a flow passage for the gas mixture and a fan for inducing air flow in a predetermined direction through the passage. An ultraviolet lamp for generating uv rays below a critical wavelength is in the flow passage for generating ozone from the air in the gas mixture. An ozone-decomposing catalyst layer is in the passage for contacting the gas mixture, and an ozone-decomposing ultraviolet lamp for generating uv rays above critical wavelength is positioned to irradiate the layer directly. The intensity of the radiation of the two layers is controlled to avoid the discharge of ozone from the downstream end of the passage.

Abstract: A ceramic heat transmission type or regenerative heat exchanger, including a plurality of matrix segments bonded together with a bonding material. A difference in coefficient of thermal expansion between the matrix segments and the bonding material is not more than 0.02% at 800.degree. C., and a Young's modulus of the bonding material is not less than 0.4 times to not more than 1.8 times that of the matrix segment. A process for producing the ceramic heat exchangers includes the steps of extruding and firing honeycomb structural segments in which a crystalline phase is mainly composed of cordierite and a coefficient of thermal expansion in an extending direction of flow channels is not more than 0.06% at 800.degree. C., machining an outer periphery of each of the segments, coating a bonding material around the outer periphery of each of the segments, bonding the segments together, and drying and firing the bonded segments.

Abstract: An air mixing type automotive air-conditioner is disclosed in which an air fed by a blower is heated to a hot air by a hot water type heater, and a mixture ratio between a cold air flowing through a bypass passage around the heater and the hot air is adjusted by an air mixing door used as an adjustment damper. The air-conditioner comprises an outside temperature sensor for generating a first signal, a room temperature setter for generating a second signal, a room temperature sensor for generating a third signal, a first arithmetic unit for calculating a desired blown air temperature on the basis of the first and second signals, and a second arithmetic unit for calculating and controlling a desired blown air flow on the basis of the second and third signals. The air-conditioner is so controlled as to obtain the blown air temperature most suitable for a thermal load of the air-conditioner.

Abstract: A temperature controller for automobile air conditioner comprises first computation means which calculates, in correspondence to each delivered air temperature, a unit variation of heat exchange output required to vary the temperature of air delivered by the air conditioner by a unit temperature difference, a second computation means which calculates the amount of variation of heat exchange output, which is required to bring the delivered air temperature close to a target temperature, based on the target temperature, the detected temperature and the unit variation, and control means which controls the heat exchange output intermittently in compliance with the amount of variation evaluated by the second computation means.

Abstract: A method and apparatus prevents the overheating of a line feed motor used in a printer. First and second timers are respectively provided to measure first and second time intervals. The second time interval includes a cessation period in which the line feed motor is not driven to allow for heat dissipation of the line feed motor. At the end of the first time interval, a determination is made as to whether the number of line feed pulses during the first time interval exceeds a predetermined limit. If the number of line feed pulses does not exceed the predetermined limit, the first time is reactivated. If the number of line feed pulses does exceed the predetermined limit, then the second timer is activated to allow for heat dissipation of the line feed motor.

Abstract: The present invention relates to an air conditioning apparatus equipped with upper and lower air mix doors and mode doors. In the present invention, the air flow volume distribution of the upper and lower blow ports is controlled continuously by regulating the opening degrees of the mode doors by one actuator controlled by instruction signal of a control device through a side link having cams corresponding to the number of the mode doors with respect to the outdoor temperature and quantity of solar radiation. The desired air discharge temperature is controlled by regulating the opening degrees of the upper and lower air mix doors by the instruction of the control device corresponding to the outdoor temperature and quantity of solar radiation.

Abstract: A deodorizing apparatus adapted to be placed in an enclosure to deodorize the bad smelling components of the foul air within the enclosure. The body has an interior free space and a ozone-decomposing layer. Ozone is generated within the free space and flows in contact with the layer so that it is decomposed before it can leave the body. The ozone is formed either by silent (corona) discharge or by ultraviolet radiation in the free space, and the energy supplied is sufficient to cause the ozone to flow outwardly into contact with the layer and to draw in foul air through the layer so that the decomposing ozone effectively deodorizes by oxidation the bad smelling components. The flow through the device is sufficient to deodorize the entire enclosure.

Abstract: A variable displacement compressor comprises a housing forming a crank chamber, a shaft, expansible chambers including pistons, a swash plate connected to the shaft so as to be smoothly changeable in inclination against the shaft and driven to rotate, a wobble plate rotatable on the swash plate, a rotation preventing mechanism including a shoe member slidable in an axial direction, and a pressure control valve which is provided in a refrigerant passage from a suction port of the compressor to the expansible chamber to control the pressure of refrigerant to be sucked responsive to the suction pressure and both to the suction pressure and to the discharge pressure when the discharge pressure is high. The refrigerant passage has a sharply bent portion for separating lubrication oil from a refrigerant flowing therein and communicates with the crank chamber to discharge blow-by gas therefrom.

Abstract: An air conditioning apparatus of an air mix type for automotive vehicles has two air conditioning mechanisms which are provided for an upper air outlet and a lower air outlet, respectively. The upper air outlet is split into a vent outlet and a defroster outlet, and a defroster/vent change-over door is mounted at the upper air outlet to switch the same between the defroster outlet and the vent outlet so that when one is open, the other is closed. A communication passageway is provided in the apparatus to connect the lower air outlet to the defroster outlet. A defroster door is mounted in the communication passageway to open and close the same so that part of the conditioned air at the lower air outlet can be transferred to the defroster outlet to ensure blow of conditioned air both through the defroster outlet and the vent outlet.

Abstract: A control apparatus of an air conditioner for automobiles comprises: means for calculating a room temperature difference signal; means for calculating a reference blowout temperature; means for correcting the reference blowout temperature, thereby calculating a target blowout temperature; and means for controlling the heat exchanger such that the difference between the target blowout temperature and the actual blowout temperature becomes zero. This control apparatus can always maintain and manage the blowout air temperature at which the passenger can feel most comfortable for various ambient temperature conditions.

Abstract: An air conditioning apparatus of an air mix type for automotive vehicles includes a casing formed therein with an air passageway, a heating device mounted in the air passageway and an air mix door mechanism for suitably regulating air flowing through the heating device and air bypassing the same, and is adapted to provide an air mix or conditioned air by mixing warm air with cool air in suitable proportions so as to release the conditioned air of desired temperature through air outlets formed in the casing. The air passageway in the casing is divided along the direction of flow of the air to define a cool air heating passageway in which the heating device is disposed and a cool air passageway which is connected to the air outlets to directly lead the cool air thereto. The cool air passageway is equipped with a door mechanism for opening and closing the cool air passageway.