Abstract: A header that has a configuration in which the header is connected to one end of each of a plurality of flattened pipes of a heat exchanger that flows a refrigerant in parallel to the plurality of flattened pipes disposed in parallel and an interior of the header is divided by one or more division plates in a parallel direction in which the plurality of heat-transfer pipes are disposed in parallel, the header being mounted so as to stand in an up-down direction, and a distributor configured to distribute the refrigerant to each chamber within the header divided by the division plates, are provided.

Abstract: A heat exchanger includes a plurality of plate-shaped fins arranged at intervals such that air flows between adjacent fins, each of the fins having insertion holes and a plurality of flat tubes extending through the fins such that a refrigerant flows through the tubes in a stacking direction of the fins, each flat tube having a cross-section having straight long sides and half-round short sides, each flat tube having long-side outer circumferential surface parts and a short-side outer circumferential surface part in contact with the fin and covered with the brazing filler metal. The fins and the flat tubes are joined with the brazing filler metal covering the outer circumferential surfaces of the flat tubes such that top part of each fin collar of each fin is in contact with the flat tube and base part of the fin collar is spaced apart from the flat tube.

Abstract: Provided is a heat exchanger capable of enhancing long-term reliability of the device through prevention of leakage of a fluid while being excellent in heat exchange efficiency, simple in structure, and manufacturable at low cost. The heat exchanger includes a plurality of heat transfer plates, a plurality of inner fins, and a plurality of leakage preventing plates. Each of the leakage preventing plates has formed therein passage holes through which the fluid is caused to flow. An inner fin of a first channel and an inner fin of a second channel are provided so that the thermal resistivities of two fluids are kept equal to each other.

Abstract: A heat exchanger has a plurality of heat exchange function surface units, capable of suppressing an influence of the gravity exerted on refrigerant and suppressing reduction of heat exchange performance in each of the surfaces. The heat exchanger has the plurality of heat exchange function surface units, and includes an upper header pipe, a lower header pipe, and a plurality of heat exchange pipes provided between the pair of upper and lower header pipes in each of the heat exchange function surface units. The plurality of heat exchange function surface units have a parallel connection relationship, and a plurality of the lower header pipes are connected to a lower collection pipe through a branch current adjusting section.

Abstract: Plate-like fins have notches longer than a longitudinal axis of flat tubes that are placed in the notches. The plate-like fins also have bend portions that are located on projections projecting toward the edges more than the ends of the flat tubes, are formed by bending part of the plate-like fins, erect in a stacking direction in which the plate-like fins are stacked, and are in contact with adjacent ones of the plate-like fins. The height of the bend portions in the stacking direction is the length of a predetermined spacing.

Abstract: A plate fin includes a slit structure formed by cutting and raising a portion of the plate fin to form an opening facing a flow direction of a fluid and a waffle structure formed by bending a portion of the plate fin to form a protrusion having an angle-shaped cross section which protrudes in a stack direction and having a ridge substantially perpendicular to the air flow direction, and the waffle structure is disposed on the upstream side on the plate fins with respect to the slit structure and a slant length L1 on the upstream side of the waffle structure is smaller than a slant length L2 on the downstream side of the waffle structure.

Abstract: The heat exchanger includes heat exchange units. Each of the heat exchange units includes a plurality of plate fins and a plurality of flat tubes. The plate fins are arranged spaced apart from one another at intervals so as to allow air to flow therebetween. The flat tubes each have an L shape by bending and inserted through the plate fins so that a refrigerant flows therethrough in a direction in which the plate fins are arranged. The heat exchange units are combined to each other so as to form a rectangular shape. Thus, heat exchange can be efficiently performed by increasing the mounting area.

Abstract: A heat exchanger includes a plurality of heat exchange units each including a plurality of fins arranged at intervals such that air passes between adjacent fins and a plurality of heat transfer tubes through which a refrigerant flows. The heat transfer tubes extend through the fins in a direction of arrangement of the fins. The heat transfer tubes are arranged at multiple levels in a level direction perpendicular to an air passing direction. The heat exchange units are arranged in multiple rows in a row direction, serving as the air passing direction. The heat exchanger further includes a row straddling header. Refrigerant passages are provided such that the refrigerant flowing from inlets of the refrigerant passages turns in the row straddling header to outlets of the refrigerant passages. The row straddling header has an interior separated into a plurality of chambers arranged in the level direction. The refrigerant passage is isolated for its corresponding chamber.

Abstract: A heat exchanger header for a heat exchanger in which refrigerant is flowed in parallel through a plurality of flat tubes disposed in parallel includes a header main body in which a plurality of through-holes are arranged side by side in a longitudinal direction, and a lid body that is joined to the header main body. At least one chamber communicating with the plurality of through-holes and serving as a refrigerant flow passage is formed between the header main body and the lid body. Each of the plurality of through-holes is an inlet side through-hole or an outlet side through-hole to which a refrigerant inlet side end or a refrigerant outlet side end of the plurality of flat tubes is connected. In a part of the lid body that faces the inlet side through-holes, a plurality of grooves are formed in a lateral direction perpendicular to the longitudinal direction.

Abstract: A ventilation and air conditioning apparatus for a vehicle includes: a ventilator that sucks air from outside the vehicle; an air conditioner that conditions air inside the vehicle; a duct for fresh outside air that connects the ventilator with the air conditioner so as to supply the air that the ventilator has sucked from outside the vehicle to the air conditioner; and a duct for conditioned air that supplies the conditioned air blown out from the air conditioner to inside the vehicle. The duct for fresh outside air is branched so as to be connected to the duct for conditioned air. With this configuration, even if the operation of the air conditioner is stopped due to, e.g., a leakage of a flammable refrigerant, an amount of ventilation can be secured in the vehicle.

Abstract: A heat source-side refrigerant circuit A including a compressor 11, an outdoor heat exchanger 13, a first refrigerant branch portion 21 connected to the compressor 11, a second refrigerant branch portion 22 and a third refrigerant branch portion 23 connected to the outdoor heat exchanger 13, a first refrigerant flow rate control device 24 provided between branch piping 40 and the second refrigerant branch portion 22, intermediate heat exchangers 25n connected at one side thereof to the first refrigerant branch portion 21 and the third refrigerant branch portion 23 via three-way valves 26n and connected at the other side thereof to the second refrigerant branch portion 22, and second refrigerant flow rate control devices 27n provided between the respective intermediate heat exchangers 25n and the second refrigerant branch portion 22, and user-side refrigerant circuits Bn having indoor heat exchangers 31n connected respectively to the intermediate heat exchangers 25n are provided, and at least one of water and

Abstract: An information processing apparatus includes a display control unit that causes a display unit having a display screen to perform information display; a switching unit that performs switching between a touch input enable state, in which predetermined processing is performed in response to touch input, and a touch input disable state, in which the predetermined processing is not performed even when touch input is detected; and a detector that is disposed at a position different from a position of the touch position detector and that performs predetermined detection. The display unit can be switched between an inactive state and an active state. The switching unit includes a first controller that sets the touch input disable state when the display unit enters the inactive state, and a second controller that performs switching to the touch input enable state in accordance with the result of the predetermined detection.

Abstract: In a heat pump apparatus of an indirect type including a primary circuit on a heat source side and a secondary circuit on a load side, a refrigerant in the primary circuit is prevented from leaking through the secondary circuit. An air-conditioning apparatus includes a leakage detecting device that detects leakage of the refrigerant circulated through a refrigerant circuit, serving as the primary circuit, from an intermediate heat exchanger into a water circuit, serving as the secondary circuit, and a controller that closes valves arranged on both sides of the intermediate heat exchanger in the water circuit to prevent water containing the refrigerant from flowing beyond the valves when the leakage detecting device detects the leakage.

Abstract: The present invention provides a refrigeration cycle apparatus using a first compressor and a second compressor driven by an expander and including a high and low pressure heat exchanger, in which a low-pressure-side outlet of the high and low pressure heat exchanger is bypassed to a low pressure portion or an intermediate pressure portion to adjust an inlet density at the expander and thereby provide high efficiency. The high and low pressure heat exchanger of the refrigeration cycle apparatus of the present invention changes an amount of heat exchange between a high-pressure refrigerant and a reduced-pressure refrigerant branched from the high-pressure refrigerant at an inlet portion of the high and low pressure heat exchanger and reduced in pressure to adjust the density of the refrigerant flowing in the expander so that power recovered by the expander and power required by the second compressor match.

Abstract: To obtain a refrigerating cycle apparatus that reduces a pressure loss at the time of a normal operation in which an ejector is bypassed to improve refrigeration cycle performance. A second throttle apparatus is installed on piping path between the outlet of a condenser, which is a radiator, and the outlet of a first throttle device. A check valve is installed on piping path between a gas refrigerant suction section of the ejector and the outlet of the ejector.

Abstract: A torsion beam type suspension device is provided in which a trailing arm part and a torsion beam part are formed as a unit by press-forming a tailored blank material in which end parts of plate materials having different thicknesses are butt-welded via a weld part. A weld part of the tailored blank material comprises a U-shaped cross section in which front and rear side wall portions are connected via a bottom wall portion, and a pair of cutouts are formed at the edge of each of the side wall portions at positions sandwiching the weld part, and therefore, when the torsion beam part is twistedly deformed, shifting the concentration of stress from the weld part to the cutout enables peeling apart of the weld end part to be prevented and the durability of the torsion beam type suspension device to be enhanced.

Abstract: A torsion beam type suspension device is provided in which a trailing arm part and a torsion beam part are formed as a unit by press-forming a tailored blank material in which end parts of plate materials having different thicknesses are butt-welded via a weld part. A weld part of the tailored blank material comprises a U-shaped cross section in which front and rear side wall portions are connected via a bottom wall portion, and a pair of cutouts are formed at the edge of each of the side wall portions at positions sandwiching the weld part, and therefore, when the torsion beam part is twistedly deformed, shifting the concentration of stress from the weld part to the cutout enables peeling apart of the weld end part to be prevented and the durability of the torsion beam type suspension device to be enhanced.

Abstract: An air-conditioning apparatus includes a body casing of an indoor unit formed in a substantially rectangular parallelepiped shape. The body casing is formed with a body inlet port on a body bottom, and a body outlet port is formed in each body side. The body casing houses a centrifugal fan, a fan motor rotatably driving the centrifugal fan, and an indoor heat exchanger disposed so as to surround an outer periphery of the centrifugal fan in planar view. In each of the body outlet port, a joint is protrudingly provided with a body-side duct connecting portion that connects a duct thereto. Further, outlet ports are formed. The air-conditioning apparatus includes a plurality of outlet units each protrudingly provided with an outlet-side duct connecting portion that connects the duct thereto. Furthermore, at least one of the joints is formed with a plurality of the body-side duct connecting portions.

Abstract: A distortion compensation amplifier that performs distortion compensation with a pre-distortion scheme. The distortion compensation amplifier includes a power detection unit (1), a distortion compensation aspect storing unit (3), a distortion providing unit (4) for performing distortion compensation, and an amplifier for amplifying a signal. Feedback signal taking section (9, 11 to 16) for taking a feedback signal, and a distortion level detecting section (9, 11, 12, 17, and 18) for detecting the level of distortion contained in the feedback signal. A controller (19) updates the storage content of the distortion compensation aspect storing unit so as to reduce the error component between the signal to be amplified and the feedback signal at the time of start of distortion compensation processing, and updates the content of the distortion compensation aspect storing unit so as to reduce the detected level of distortion when the error component is reduced.

Abstract: A refrigeration cycle apparatus which is capable of performing matching of the volumetric flow rate without performing pre-expansion it obtained. A refrigeration circuit includes a compression unit including a main compressor and a second compressor, a gas cooler, an expansion mechanism, and an evaporator interconnected with pipes, and a sub-compression mechanism driven by power recovered by the expansion mechanism, a suction side of the sub-compression mechanism is connected to a compression process of the compression unit, a discharge side of the sub-compression mechanism is connected to an inlet side of the gas cooler, and flow rate of refrigerant flowing into the sub-compression mechanism is controlled.