Abstract: A heat exchanger including an aluminum substrate, and a water-repellent coating provided on a surface of the aluminum substrate, wherein the aluminum substrate has an anodized film on the surface, and the water-repellent coating is a film formed of a fluoropolyether group-containing compound.

Abstract: A heat exchanger includes: refrigerant channels that extend in a first direction, are disposed along a second direction intersecting with the first direction, and are disposed along a third direction intersecting with the first direction and the second direction; and heat transfer tubes defining the refrigerant channels. One or both of a size of an outer edge and a size of an inner edge of the heat transfer tubes are different between a first position and a second position in the first direction. Outer surfaces of the heat transfer tubes each include a protrusion that protrudes in a direction intersecting with the first direction, and is in contact with an outer surface of one of the heat transfer tubes adjacent thereto in the second direction. The protrusion includes a concave portion extending along the third direction.

Abstract: A heat exchanger includes: a surface with a water-repellent coating. The surface has a surface structure that includes protrusions. Condensed water droplets, each having a droplet diameter that allows a subcooled state to be maintained even under a predetermined freezing condition, combine with one other on the surface and generate an energy. The surface structure uses the energy to remove the combined condensed water droplets from the surface.

Abstract: A multi-blade centrifugal air-sending device includes a fan including a back plate having a disk shape, a plurality of blades arranged at a peripheral portion of the back plate in a circumferential direction, and a rim having an annular shape and coupling the plurality of blades to each other, the plurality of blades being connected at respective first end portions on one side to the back plate, the rim being provided at respective second end portions of the plurality of blades on a side opposite to the one side where the respective first end portions are present; and a scroll casing having a spiral shape and including a facing side wall where an air inlet is provided and a peripheral wall, the scroll casing housing the fan such that the side wall faces the respective second end portions of the plurality of blades, the scroll casing being configured such that air is introduced through the air inlet and blown out to the outer peripheral side.

Abstract: A scroll casing has a scroll portion, a discharge portion provided with a discharge port, and a tongue portion. An extended plate has, in a cross section obtained by cutting in a thickness direction, a change point, at which an enlargement ratio of an area of the cross section is enlarged so as to be larger on a downstream side than that on an upstream side due to a change of inclination. In the extended plate, an angle ?1, and an angle ?2 satisfy a relationship of either 0??2<?1 or 0<?2??1. A distance L1 and a distance L2 satisfy a relationship of L2<L1.

Abstract: A heat exchanger includes: refrigerant channels that extend in a first direction, are disposed along a second direction intersecting with the first direction, and are disposed along a third direction intersecting with the first direction and the second direction; and heat transfer tubes defining the refrigerant channels. One or both of a size of an outer edge and a size of an inner edge of the heat transfer tubes are different between a first position and a second position in the first direction. Outer surfaces of the heat transfer tubes each include a protrusion that protrudes in a direction intersecting with the first direction, and is in contact with an outer surface of one of the heat transfer tubes adjacent thereto in the second direction. The protrusion includes a concave portion extending along the third direction.

Abstract: An impeller connected to a motor having a drive shaft includes a back plate having a boss having a shaft hole through which the drive shaft is inserted, a ring-shaped rim provided to face the back plate, and a plurality of blades connected to the back plate and the rim and arranged along a circumferential direction of the back plate about the rotation shaft. The back plate includes a first surface portion on which the plurality of blades are formed, a second surface portion provided at a region between the boss and the first surface portion and depressed from the first surface portion in an axial direction of the rotation shaft, and a plurality of projections provided at the second surface portion and extending in the axial direction.

Abstract: An impeller includes: a main plate to be rotated; an annular side plate having a suction port for air; and blades in a circumferential direction. Each of the blades has: an inner peripheral end; an outer peripheral end; a sirocco blade portion that includes the outer peripheral end, and forms a forward-swept blade; and a turbo blade portion that includes the inner peripheral end and forms a swept-back blade. The blade has an end portion facing the suction port and a base portion connected to the main plate, and the end portion has a smaller thickness than that of the base portion in the sirocco blade portion. The end portion of the blade has a blade shape, and in the end portion having the blade shape, a first blade thickness of an inner circumferential side of the impeller is greater than a second blade thickness of the outer circumferential side.

Abstract: A heat exchanger includes: a water-repellent coating film on part of a surface of the heat exchanger. The surface on which the water-repellent coating film is disposed includes a surface structure including protrusions. D/L<0.36, D/L>0.4×(L/H), D<200, L?D<1000, H>700, 0>1.28×D×10?2+2.77 ×(L?D)×10?3?1.1×D2×10?5?5.3×(L?D)2×10?7?9.8×D×(L?D)×10?6?2.0, and 90°<?<120°, where L is an average pitch of the protrusions in nm, D is an average diameter of the protrusions in nm, H is an average height of the protrusions in nm, and ? is a contact angle of water on a smooth plane of the water-repellent coating film.

Abstract: An impeller includes a main plate, an annular side plate and blades. The blades each have: an inner circumferential end; an outer circumferential end; a sirocco blade portion formed as a forward-swept blade portion, and having an outlet angle that is greater than 90 degrees; and a turbo blade portion formed as a swept-back blade portion and including the inner circumferential end. The blades include a first blade portion and a second blade portion that are provided on respective sides of the main plate. The impeller including a region in which a first inter-blade distance is greater than a second inter-blade distance, where an inlet-blade distance is a distance between any adjacent two of the blades in the circumferential direction, the first inter-blade distance is the inter-blade distance of the first blade portion, and the second inter-blade distance is the inter-blade distance of the second blade portion.

Abstract: The present disclosure keeps a topcoat film 3 from having a dent 6 in a portion of its surface corresponding to a pinhole 4 of a resin molded product 1. A method of the present disclosure includes: applying an undercoat material to a resin molded product 1 to form an undercoat film 2; applying a topcoat material to a surface of the undercoat film 2 to form a topcoat film 3; and thermally curing the topcoat film 3. A coating material that contains a base resin having a larger volume expansion coefficient than the resin molded product 1 and a granular filler having a smaller volume expansion coefficient than the base resin and a number-average particle size of 2 ?m or more to 12 ?m or less is used as the undercoat material.

Abstract: An air conditioning apparatus includes a first refrigerant circuit enclosing a first refrigerant, and a second refrigerant circuit enclosing a second refrigerant. The first refrigerant circuit includes a compressor configured to compress the first refrigerant, an outdoor heat exchanger, an expansion device, and a first flow path through which the first refrigerant passes in an intermediate heat exchanger configured to exchange heat between the first refrigerant and the second refrigerant. The second refrigerant circuit includes a pump configured to increase a pressure of the second refrigerant and transfer the second refrigerant, a second flow path through which the second refrigerant passes in the intermediate heat exchanger, and an indoor heat exchanger. At least one of the first refrigerant and the second refrigerant has a global warming potential lower than that of R32, and the second refrigerant has a lower flammable limit concentration higher than that of the first refrigerant.

Abstract: A refrigeration cycle apparatus according to the present invention performs cooling by circulation of refrigerant. The refrigeration cycle apparatus includes an evaporator, a condenser, a pump, a compressor, and a controller. The evaporator is arranged in a first space. The condenser is arranged in a second space. The pump is configured to compress refrigerant from the condenser and output the refrigerant to the evaporator. The compressor is configured to compress refrigerant from the evaporator and output the refrigerant to the condenser. The controller is configured to control the pump and the compressor to cool the first space. The controller is configured to turn on the pump after turn-on of the compressor while a temperature of the first space is higher than a temperature of the second space.

Abstract: An arithmetic processing apparatus includes a shift register configured to store a plurality of transactions each having one or more destinations; and a processor coupled to the shift register and configured to: select a first transaction among the transactions stored in the shift register based on a state of a destination of each of the transactions, determine whether or not the first transaction is issuable, select a second transaction based on destinations of the first transaction when it is determined that the first transaction is not issuable, issue the first transaction when it is determined that the first transaction is issuable, and issue the second transaction when it is determined that the first transaction is not issuable.

Abstract: An apparatus includes a memory, a memory controller, arithmetic processors, and access circuits corresponding to the arithmetic processors. The memory controller controls a load instruction that reads, from the memory, data to be obtained by the arithmetic processors. The access circuit generates divided instructions by dividing a multicast load instruction, and selects, for each divided instruction, a first access circuit that issues, to the memory controller, a read request for causing the target access circuits to perform responses to the target access arithmetic processors. The first access circuit determines first identification information common to all the target access circuits, and issues, to the memory controller, a single read request to which the first identification information is added, and obtains, from the memory controller, responses to which the first identification information is added, and outputs first data based on the obtained responses to the target arithmetic processors.

Abstract: A heat exchanger includes: multiple flat tubes that extend in a second direction intersecting a first direction which is an air flow direction and that are disposed at intervals in a third direction that intersects the first direction and the second direction; and multiple plate-like heat transfer fins that extend along the third direction and that are disposed at intervals along the second direction. The heat exchanger causes refrigerant in the flat tubes to exchange heat with the air flow that passes through heat exchange spaces formed by adjacent flat tubes and adjacent heat transfer fins when viewed from the first direction. The heat transfer fins each have a heat transfer fin front side surface that is one main surface, a heat transfer fin back side surface that is the other main surface.

Abstract: A heat exchanger includes: a surface with a water-repellent coating. The surface has a surface structure that includes protrusions. Condensed water droplets, each having a droplet diameter that allows a subcooled state to be maintained even under a predetermined freezing condition, combine with one other on the surface and generate an energy. The surface structure uses the energy to remove the combined condensed water droplets from the surface.

Abstract: An arithmetic processing apparatus includes a shift register configured to store a plurality of transactions each having one or more destinations; and a processor coupled to the shift register and configured to: select a first transaction among the transactions stored in the shift register based on a state of a destination of each of the transactions, determine whether or not the first transaction is issuable, select a second transaction based on destinations of the first transaction when it is determined that the first transaction is not issuable, issue the first transaction when it is determined that the first transaction is issuable, and issue the second transaction when it is determined that the first transaction is not issuable.

Abstract: A refrigeration cycle apparatus according to the present invention performs cooling by circulation of refrigerant. The refrigeration cycle apparatus includes an evaporator, a condenser, a pump, a compressor, and a control device. The evaporator is arranged in a first space. The condenser is arranged in a second space. The pump is configured to compress refrigerant from the condenser and output the refrigerant to the evaporator. The compressor is configured to compress refrigerant from the evaporator and output the refrigerant to the condenser. The control device is configured to control the pump and the compressor to cool the first space. The control device is configured to turn on the pump after turn-on of the compressor while a temperature of the first space is higher than a temperature of the second space.

Abstract: An apparatus includes a memory, a memory controller, arithmetic processors, and access circuits corresponding to the arithmetic processors. The memory controller controls a load instruction that reads, from the memory, data to be obtained by the arithmetic processors. The access circuit generates divided instructions by dividing a multicast load instruction, and selects, for each divided instruction, a first access circuit that issues, to the memory controller, a read request for causing the target access circuits to perform responses to the target access arithmetic processors. The first access circuit determines first identification information common to all the target access circuits, and issues, to the memory controller, a single read request to which the first identification information is added, and obtains, from the memory controller, responses to which the first identification information is added, and outputs first data based on the obtained responses to the target arithmetic processors.