Abstract: The performance and the functionality of a projection-type video display device are improved to expand an application range of the projection-type video display device. The projection-type display device has two optical engines, increases the luminance of a display image, achieves a pseudo high resolution, or displays a three-dimensional image and a wide screen. The two optical engines have an adjusting mechanism to adjust a position on which an image is displayed. The adjusting mechanism has a plurality of mechanisms which adjust relative three-dimensional axis-direction positions between the two optical engines and inclinations of the optical engines with respect to axes. For example, in consideration of cross actions between adjustments, the plurality of adjusting mechanisms are allocated to the optical engines. As a result, the adjustments can be easily performed.

Abstract: A ventilation system (S) includes: a first ventilation device (10a) and a second ventilation device (10b) each including an air supply fan (26) and an exhaust fan (25); a booster fan (1) placed upstream in supply air of the air supply fan (26) of each of the ventilation devices (10a, 10b); and a controller (100) configured to control actuation of the ventilation devices (10a, 10b) and the booster fan (1). The controller (100) determines whether actuation of the ventilation device (10a, 10b) is requested or not, and outputs an actuation signal to the air supply fan (26) to the ventilation device (10a, 10b) whose actuation has been requested such that the booster fan (1) is actuated after the air supply fan (26) has been actuated.

Abstract: A refrigeration apparatus has a compressor, a radiator, and an evaporator connected in order to form a refrigerant circuit. The refrigeration apparatus includes an expansion mechanism disposed at an inflow side of the evaporator, a detector that detects a supercooled state of the refrigerant at the inflow side of the evaporator, and a control part. The expansion mechanism controls expansion of refrigerant based on at least one of a high-pressure target value of the refrigerant circuit, a low-pressure target value of the refrigerant circuit, and a superheat target value at an outflow side of the evaporator. The control part causes at least one of a settings change to raise the high-pressure target value, to lower the low-pressure target value and to raise the superheat target value upon determining based on detection results from the detector that refrigerant at the evaporator inflow side is in a supercooled state.

Abstract: Provided is a projection video display device with which a sliding load is minimized while maintaining an adjustment precision in a lens shift mechanism. A lens shift mechanism (32) which moves a projection lens in a direction which is orthogonal to the optical axis of projected light has a configuration in which mobile bases (50, 60), which retain the projection lens, slide using a shaft (52), which is attached on a fixed member (4) side, as a guide member. A further aspect of the configuration is that a correction screw is inserted from the rear face side of the fixed member (4) to make contact with the shaft (52), and optical axis tilt and misalignment of the projection lens are corrected by adjusting the degree of insertion of the correction screw.

Abstract: A projection image display apparatus which performs an operation for attaching and detaching a projection lens by one action with a simple mechanism is provided. The projection image display apparatus includes an optical engine which irradiates a display element with light emitted from a light source to form an image, a projection lens which enlarges and projects the image emitted from the optical engine, a lens shift mechanism for adjusting a position of an image to be projected onto a screen, a lens attachment unit for attaching the projection lens to the lens shift mechanism, and a first plate for attaching the projection lens to the lens attachment unit to achieve a locked state, and the attachment of the projection lens to the lens attachment unit and the achievement of the locked state are performed by only rotation of the first plate in a first direction.

Abstract: Provided is a projection video display device with which a sliding load is minimized while maintaining an adjustment precision in a lens shift mechanism. A lens shift mechanism (32) which moves a projection lens in a direction which is orthogonal to the optical axis of projected light has a configuration in which mobile bases (50, 60), which retain the projection lens, slide using a shaft (52), which is attached on a fixed member (4) side, as a guide member. A further aspect of the configuration is that a correction screw is inserted from the rear face side of the fixed member (4) to make contact with the shaft (52), and optical axis tilt and misalignment of the projection lens are corrected by adjusting the degree of insertion of the correction screw.

Abstract: A refrigerant circuit of a humidity control apparatus is provided with two adsorption heat exchangers. In the refrigerant circuit, refrigerant can circulate in reverse directions. A switching mechanism of the humidity control apparatus switches between a transfer path of the outdoor air to be supplied into a room and a transfer path of the indoor air to be exhausted to the outside the room. In a first operation of the humidity control apparatus, a direction of refrigerant circulation and a flow path of the air are changed every predetermined period. In a second operation of the humidity control apparatus, the refrigerant circuit is stopped, and the flow path of the air is changed every predetermined period.

Abstract: A hot water supply air conditioning system performs a first cold-storage operation, a second cold-storage operation, and a cold-used air-cooling operation. In the first cold-storage operation, a hot-water-supply-side heat exchanger serves as a condenser, and a thermal-storage-side heat exchanger serves as an evaporator. Moreover, a hot water supplier heats water of a hot water storage tank, and a thermal storage stores cold thermal energy in a thermal storage tank. In the second cold-storage operation, a heat-source-side heat exchanger serves as a condenser, and the thermal-storage-side heat exchanger serves as an evaporator. Moreover, the thermal storage stores cold thermal energy in the thermal storage tank. In the cold-used air-cooling operation, the hot water supply air conditioning system cools room air using cold thermal energy stored in the thermal storage tank.

Abstract: A refrigeration system includes a heat source unit, a plurality of utilization units, a height-associated value detection unit and a pressure control unit. The heat source unit has a compressor and a heat source-side heat exchanger that functions as a radiator. Each utilization unit has a pressure reducer and a utilization-side heat exchanger that functions as an evaporator. The height-associated value detection unit detects a height-associated value of each utilization unit. The height associated value of each utilization unit corresponds to a height of the utilization unit. The height of each utilization unit is a vertical distance between the utilization unit and the heat source unit. The pressure control unit determines whether each of the utilization units is in operation or stopped and performs refrigerant pressure control based on the height-associated values of the utilization units that have been determined to be in operation.

Abstract: A dehumidification system includes a first dehumidification unit having an outdoor air cooling heat exchanger, a second dehumidification unit using two adsorption heat exchangers such that an air passage is switched, and a third dehumidification unit having an adsorption rotor. Low-temperature low-humidity air cooled and dehumidified in the second dehumidification unit is supplied to the third dehumidification unit to reduce energy for recovery of the third dehumidification unit and to realize energy conservation in the dehumidification system and reduction in cost of the dehumidification system.

Abstract: A closed space forming unit (41-48) forms a closed space (37, 38) around an adsorption member (51, 52) supporting thereon an adsorbent for desorbing and adsorbing moisture. An active species generating unit (101, 102) supplies active species, for decomposing odorous components, into the closed space (37, 38).

Abstract: Provided is a liquid crystal projector which prevents deterioration of an aluminum grid inorganic polarizing plate due to dusts included in cooling wind for cooling a liquid crystal panel module. A shade member is provided along a surface of the inorganic polarizing plate on which the cooling wind is received, to prevent the surface from being directly receiving the cooling wind and thus prevent attachment of dusts. In order to reduce a cooling effect due to the shade member, 0.9t?a?1.5t and 0.5t?b?1.5t are satisfied, where a represents a width of the shade member, b represents a distance between the shade member and the polarizing plate, and t represents a thickness of the polarizing plate. As a result, it is possible to obtain the cooling effect and the effect of reducing the dusts at the same time.

Abstract: Heat exchangers of a refrigerant circuit are constructed of a first adsorption heat exchanger and a second adsorption heat exchanger, both of which have an adsorbent supported thereon, and are constructed so as to be switched into an evaporator and a condenser. An air passage is constructed so as to be switched into states in which air flowing from the outside of a room to the inside of the room and air flowing from the inside of the room to the outside of the room flow through either of the first adsorption heat exchanger and the second adsorption heat exchanger. A dehumidifying operation mode and a humidifying operation mode can be performed by switching the flow of refrigerant and the flow of air at specified intervals, a cooling operation mode and a heating operation mode can be performed without switching the flow of refrigerant and the flow of air, and an ventilating operation mode can be performed by flowing air through the air passage in a state where the refrigerant circuit is stopped.

Abstract: According to a humidity controller (10), a first heat exchanger chamber (37) and a second heat exchanger chamber (38) are arranged next to each other in the left-to-right direction in the casing (11). A first adsorption heat exchanger (51) is accommodated in the first heat exchanger chamber (37), and a second adsorption heat exchanger (52) is accommodated in the second heat exchanger chamber (38). The humidity controller (10) alternately performs an operation in which outdoor air passes through the first adsorption heat exchanger (51) and room air passes through the second adsorption heat exchanger (52), and an operation in which outdoor air passes through the second adsorption heat exchanger (52) and room air passes through the first adsorption heat exchanger (51).

Abstract: A ventilation system (S) includes: a first ventilation device (10a) and a second ventilation device (10b) each including an air supply fan (26) and an exhaust fan (25); a booster fan (1) placed upstream in supply air of the air supply fan (26) of each of the ventilation devices (10a, 10b); and a controller (100) configured to control actuation of the ventilation devices (10a, 10b) and the booster fan (1). The controller (100) determines whether actuation of the ventilation device (10a, 10b) is requested or not, and outputs an actuation signal to the air supply fan (26) to the ventilation device (10a, 10b) whose actuation has been requested such that the booster fan (1) is actuated after the air supply fan (26) has been actuated.

Abstract: Provided is duct equipment including a duct body, a heat insulating material, a external cover, a fiber-reinforced sheet, and fiber-reinforced moldings. The duct body includes a duct wall, a duct passage defined by the duct wall, and duct corners formed in the duct wall when viewed in a cross-section in a direction intersecting a direction in which the duct passage extends. The heat insulating material is installed on an outer circumference of the duct body. The external cover includes a external cover wall installed on an outer circumference of the heat insulating material, and external cover corners formed alone the duct corners. The fiber-reinforced sheet is disposed on the outer circumference of the duct body via an adhesive layer. The fiber-reinforced moldings are disposed adjacent to the fiber-reinforced sheet along the external cover corners via adhesive layers, and have a substantially L-shape when viewed in the cross-section.

Abstract: Heat exchangers of a refrigerant circuit are constructed of a first adsorption heat exchanger and a second adsorption heat exchanger, both of which have an adsorbent supported thereon, and are constructed so as to be switched into an evaporator and a condenser. An air passage is constructed so as to be switched into states in which air flowing from the outside of a room to the inside of the room and air flowing from the inside of the room to the outside of the room flow through either of the first adsorption heat exchanger and the second adsorption heat exchanger. A dehumidifying operation mode and a humidifying operation mode can be performed by switching the flow of refrigerant and the flow of air at specified intervals, a cooling operation mode and a heating operation mode can be performed without switching the flow of refrigerant and the flow of air, and an ventilating operation mode can be performed by flowing air through the air passage in a state where the refrigerant circuit is stopped.

Abstract: A humidity control system (10) includes a refrigerant circuit (50) in which an adsorption heat exchanger (51, 52) carrying an adsorbent thereon is connected. During a regeneration action of a humidification operation of the humidity control system (10), outdoor air passes through the adsorption heat exchanger (51, 52) from upstream towards downstream in the flow of refrigerant. Therefore, the air can be effectively increased in temperature at the air inflow end of the adsorption heat exchanger (51, 52), thereby preventing freezing of dew condensation water.