An air-conditioning register includes: a register panel exhibited in a compartment and having an opening for flowing out conditioned air; a retainer provided so as to cave in the register panel and having an air passage communicating with the opening; a vertical fin unit including vertical fins received in the retainer and capable of adjusting a wind direction of the conditioned air horizontally; a horizontal fin unit including horizontal fins received in the retainer and capable of adjusting a wind direction of the conditioned air vertically; and an open/close damper received in the retainer and capable of opening/closing the air passage. The air-conditioning register further includes a common operation portion capable of operating the vertical fin unit, the horizontal fin unit and the open/close damper.

Air-conditioning register

An air conditioning system for automotive vehicles includes an air conditioning case (10) having an internal passageway (16) and an ionizer (40) for emitting positive ions and negative ions into the internal passageway (16) of the air conditioning case (10). The ionizer includes a main body (42) and first and second discharge electrodes (46,48) extending from the main body into the internal passageway in a spaced-apart relationship with each other. The air conditioning system further includes an electric short preventing arrangement for preventing moisture condensed in and around the first and second discharge electrodes from causing electric short between the first and second discharge electrodes. The electric short preventing arrangement comprises a water drainage rib (52) for draining the moisture positioned in and around the first and second discharge electrodes to prevent the electric short between the first and second discharge electrodes.

Air conditioning system for automotive vehicles

In a multi-blade centrifugal fan in which an impeller is provided in a scroll casing in a freely rotatable manner, the scroll casing is provided with an axially expanded portion that forms an air channel at a bottom surface thereof which is expanded in a rotation-axis direction at a radially outer side of an annular flange portion which supports the impeller; and is provided, in a region of an outlet between a tongue portion and a spiral-end portion of the scroll casing in the axially expanded portion, with a protrusion that protrudes radially outward from a radially inner side surface by a predetermined amount so as to directly face an airflow in a circumferential direction.

Multi-blade centrifugal fan and air conditioner employing the same

A container refrigeration device aims to improve dehumidification performance of the container refrigeration device. The container refrigeration device is configured to perform, in accordance with a dehumidification load, first dehumidification control under which air having passed through an evaporator is heated by exchanging heat with a refrigerant in a reheat heat exchanger, and blown into an inside of a container, and second dehumidification control under which a pressure of the refrigerant discharged from a compressor and flowing into the reheat heat exchanger is caused to be higher than a pressure of the refrigerant discharged from the compressor under the first dehumidification control, and a flow rate of the refrigerant discharged from the compressor is regulated such that a temperature inside the container is within a predetermined temperature range.

Refrigeration device for container

An air-conditioning device (100) provided with the following: an outdoor unit (1) containing a compressor (10), a first refrigerant-path switching device (11), and a heat-source-side heat exchanger (12); a heat-medium exchanger (3) containing an inter-heat-medium heat exchanger (15), a flow-restriction device (16), a second refrigerant-path switching device (18), and a pump (21); and at least one indoor unit (2) containing a usage-side heat exchanger (26). The compressor (10), the first refrigerant-path switching device (11), the flow-restriction device (16), the second refrigerant-path switching device (18), and the inter-heat-medium heat exchanger (15) are connected by refrigerant piping, forming a refrigeration-cycle circuit. The inter-heat-medium heat exchanger (15) and the usage-side heat exchanger (26) are connected by heat-medium piping, forming a heat-medium circulation circuit through which a heat medium other than the refrigerant circulates. By switching the first refrigerant-path switching device (11), this air-conditioning device enters a defrost mode wherein the refrigerant discharged from the compressor (10) is supplied to the heat-source-side heat exchanger (12). In said defrost mode, some of the refrigerant flowing from the heat-source-side heat exchanger (12) is supplied to the inter-heat-medium heat exchanger (15) without going through the flow-restriction device (16), and the rest is returned to the outdoor unit (1) without going through either the flow-restriction device (16) or the inter-heat-medium heat exchanger (15).

Air conditioning device

PROBLEM TO BE SOLVED: To provide a vehicle air-conditioner that reduces noise in a specific frequency region caused by self-excited oscillation of a separation vortex occurring in a diffuser part of a unit case. SOLUTION: The vehicle air-conditioner 1 includes a blower unit 2 and an air-conditioning unit 3 that blows out air, blown from the blower unit 2, into a vehicle interior while temperature-conditioning the air. The air-conditioning unit 3 has a unit case 11 that guides air, blown from the blower unit 2, to an evaporator inlet passage 21 through a diffuser part 22 so as to circulate the air from the evaporator inlet passage 21 to an evaporator 13. A face 23, facing an air inflow direction, of the unit case 11 formed with the evaporator inlet passage 21 is provided with a reflection-direction change part 24 that changes a reflection direction of sound waves caused by self-excited oscillation of a separation vortex occurring in the diffuser part 22. COPYRIGHT: (C)2009,JPO&INPIT

Vehicle air-conditioner

PROBLEM TO BE SOLVED: To provide a refrigeration unit for a container capable of securing reliability of an inverter by effectively cooling inverter-related parts for composing the inverter and enabling the inverter to be mounted in a narrower space. SOLUTION: A heat sink 52 as a heat radiation means is installed on an inverter box 51 housing the inverter-related parts, and the heat sink 52 is housed in a duct 50. One end of the duct 50 composes an outside air introducing port 50a formed on the outer side of this refrigeration unit for a container 2. The other end is composed as an air outlet 50b disposed close to a condenser fan 6. COPYRIGHT: (C)2003,JPO

Refrigeration unit for container

An air conditioning unit capable of suppressing a low frequency noise and a vehicle air conditioning apparatus are provided. The air conditioning unit includes a fan ( 9 ) for supplying air, a heat exchanger ( 7 ) for performing heat exchange between the air supplied from the fan ( 9 ), a first flow passage ( 13 ) for guiding the air supplied from the fan ( 9 ) in a direction along a surface of the heat exchanger ( 7 ), and a second flow passage ( 15 ) for turning the flow direction of the air passed through the first flow passage ( 13 ) in a direction intersecting the surface of the heat exchanger ( 7 ), wherein a projecting portion ( 25, 27 ) is disposed to the confronting surface ( 19 ) of the second flow passage ( 15 ) confronting the heat exchanger ( 7 ) so as to project toward the heat exchanger ( 7 ) as well as to extend in a direction along the air flow in the first flow passage ( 13 ).

Air Conditioning Unit and Vehicle Air Conditioning Apparatus

PROBLEM TO BE SOLVED: To provide an air-conditioning indoor unit and a ceiling embedded air conditioner capable of reducing the noise of a turbo fan. SOLUTION: The air-conditioning indoor unit 11 comprises a driving part 18 fixed to a top plate 24 of a casing 17, a fan 19 driven by the driving part 18 to boost and blow air sucked from a suction port 20, and an indoor heat exchanger 22 for heating or cooling the air blown off from the fan 19, inside the casing 17 with the suction port 20 for allowing the air to flow in. The air-conditioning indoor unit 11 is characterized by providing passage enlarging members 33, 35 for gradually enlarging the flow of air blown off from the fan 19, toward the indoor heat exchanger 22. COPYRIGHT: (C)2004,JPO

Air-conditioning indoor unit and ceiling embedded air conditioner

PROBLEM TO BE SOLVED: To provide an air-conditioning unit and a vehicular air-conditioner capable of suppressing the noise of low frequency. SOLUTION: There are provided a fan 9 for feeding air, a heat exchanger 7 for performing the heat exchange between the air fed to the fan 9 and itself, a first air passage 13 for leading the air fed from the fan 9 in the direction along a surface of the heat exchanger 7, and a second air passage 15 for bending the flow direction of the air passing through the first air passage 13 in the direction across the surface of the heat exchanger 7. Projection parts 25, 27 projected in the direction of the heat exchanger 7 and extending in the direction along the air flow in the first air passage 13 are provided on an opposing surface 19 opposite to the heat exchanger 7 in the second air passage 15. COPYRIGHT: (C)2008,JPO&INPIT

Eguchi Takeshi

Papers

Vehicle air-conditioner

Refrigeration unit for container

Air Conditioning Unit and Vehicle Air Conditioning Apparatus

Air-conditioning indoor unit and ceiling embedded air conditioner

Air-conditioning unit and vehicular air-conditioner