Matsushita Electric Industrial Co., Ltd.

Daikin Industries, Ltd.

Nitto-denko Corporation

Matsushita Electronics Corporation

Panasonic Corporation

Socionext Inc.

Matshushita Electric Industrial Co., Ltd.

Halo Lsi Design and Device Technologies, Inc.

Makoto Kojima

Hiroshi Yamamoto

Hiroshi Wada

Katsuya Kume

Takuro Yamada

Masahiko Ando

Shuji Ikegami

Yasuyuki Tokunaga

Tetsuo Omata

Hiroaki Mashiko

Yoshikazu Tanaka

Hironori Akamatsu

Toru Iwata

Masayuki Satake

Tomoko Ogura

Masashi Agata

Yuji Hotta

Ryotaro Azuma

Ken Kawai

Tatsumi Sumi

Yoshinobu Yamagami

Naoki Kuroda

Shinichi Kasahara

Hisakazu Kotani

Yutaka Moroishi

Takafumi Maruyama

Takeshi Yamanaka

Katsuji Satomi

Mitsuaki Hayashi

Shuji Nakaya

Yuusuke Nakagawa

Kazumi Higashi

Fumiko Nakano

Takayuki Setoguchi

Takashi Takata

Yasuyuki Okada

Noriyuki Okuda

Mitsuo Kuramoto

Naoki Matsuoka

Yoshikazu Soeda

Kouichi Yasuo

Yoshiyuki Tsuji

Naomi Miyake

Hyunyoung Kim

Katsuhide Kojima

Hirozumi Misaki

Mamoru Okumoto

Waka Hikosaka

Lan Jiang

Chuncheng Piao

Yukihiro Makino

Shin-ichi Kouno

Takashi Tominaga

Yoshihide Kawaguchi

Eishi Asoshina

Kenji Misumi

Takahumi Sakuramoto

Eiichiro Fukusaki

Takehiko Nakajima

Satoshi Takashima

Hironori Tamai

Akihiro Yamamoto

Toshihiro Inokuchi

Yoshitaka Mano

Wataru Abe

Ko Terai

Daisuke Baba

A compressor includes a casing that stores a lubrication oil in a bottom portion, a compression mechanism disposed in the casing, an electric motor disposed above the compression mechanism, a discharge pipe opening in a space in the casing on an upper side of the motor, and an oil drainage mechanism that guides a lubrication oil adhering to an inner wall of the casing to the discharge pipe using a swirling flow generated by rotation of the motor. The oil drainage mechanism includes an oil drain pipe having one end opening in the inner wall of the casing and another end connected to the discharge pipe, and a flow-rate regulating valve disposed at the oil drain pipe. The flow-rate regulating valve has a changeable opening degree. The opening degree of the flow-rate regulating valve is configured to be regulated in accordance with a rotational speed of the motor.

Compressor

An object is to provide an air conditioning apparatus in which, even when a refrigerant leaks outside a casing, the leaked refrigerant is easily guided to the inside of the casing. In an indoor unit () of an air conditioning apparatus () that includes a casing () having an opening (), an indoor heat exchanger () disposed in the casing (), a liquid-side connection pipe () or a gas-side connection pipe () extending from the indoor heat exchanger () to the outside of the casing () through the opening (), and an indoor-side dew condensation prevention member () that covers the periphery of the liquid-side connection pipe () or the gas-side connection pipe (), an end portion of the liquid-side connection pipe () or the gas-side connection pipe () is used in a state of being covered from the periphery thereof by a connection-side dew condensation prevention member () or is covered from the periphery thereof by the indoor-side dew condensation prevention member (), and there is formed a communication passage () that causes a space of a part covered by the dew condensation prevention member at the end portion of the liquid-side connection pipe () or the gas-side connection pipe () to be in communication with the internal space of the casing ().

Air conditioning apparatus

An indoor unit of a refrigeration apparatus, to be disposed in a ceiling, includes a casing that has blow-out ports and a blow-in port disposed in a lower surface, a plate-shaped member disposed below the blow-in port, and a filter disposed above an opening in the plate-shaped member. The casing accommodates a heat exchanger, a control board, a support member supporting the control board, and a gas sensor disposed at or adjacent to the support member and between the casing and the plate-shaped member. The gas sensor detects the refrigerant flowing out of the blow-in port due to refrigerant leakage, and the gas sensor is removable when the plate-shaped member is shifted.

Indoor unit of refrigeration apparatus

A refrigerant-channel branching component for connecting a connection pipe connected to an outdoor unit with a connection pipe directed toward a plurality of indoor units, the refrigerant-channel branching component includes: an inlet portion; and outlet portions. At least one of the plurality of outlet portions includes: a reference space into which a reference connection pipe with a predetermined outside diameter is inserted; a first space that is adjacent to the reference space and has an inside diameter greater than an inside diameter of the reference connection pipe; and a second space that is adjacent to the first space and has an inside diameter greater than the inside diameter of the first space.

Refrigerant-channel branching component, and refrigeration apparatus including refrigerant-channel branching component

An indoor unit of a refrigeration apparatus includes: a drain pan that includes four wall surfaces including a first wall surface, and has a quadrangle shape in a plan view; a heat exchanger disposed above the drain pan and through which a combustible refrigerant, having a larger specific gravity than air, flows; a fan that generates air flow to the heat exchanger; a gas sensor that detects a refrigerant leakage; and a casing accommodating the drain pan, the heat exchanger, the fan, and the gas sensor.

An air conditioning system capable of reducing noise incidental to gas-liquid two-phase transfer is provided. The air conditioning system () performs a refrigeration cycle in a refrigerant circuit (RC) including an outdoor unit (), a plurality of indoor units (), and a liquid-side connection pipe (LC) connecting the outdoor unit () and the indoor units (). The air conditioning system () includes a second outdoor control valve (, electric valve) decompressing the refrigerant flowing in the refrigerant circuit (RC) in accordance with an opening degree, an operating-capacity variation detection portion (, detection portion) detecting change of the number of operating units in accordance with device information, and a device control portion (, control portion) controlling a state of the second outdoor control valve (). The device control portion () executes first control (feed-forward control) when the change of the number of operating units is detected by the operating-capacity variation detection portion (), and adjusts the opening degree of the second outdoor control valve () to suppress a rise of pressure of the refrigerant flowing into the operating unit.

Air conditioning system

An air conditioner disclosed herein includes a cooling/heating module including a thermoelastic material and an actuator applying tension to the thermoelastic material and a switching control section selectively applying or removing tension to/from the thermoelastic material.

Air conditioning device

A cooling/heating, module configured to cool and heat air includes: first and second cooling/heating sections (), each having a thermoelastic material (); and an actuator () applying tension to the thermoelastic material (). The actuator () is configured to alternately perform the operation of applying tension to the thermoelastic material () of the first cooling/heating section () and removing tension from the thermoelastic material () of the second cooling/heating section () and the operation of applying tension to the thermoelastic material () of the second cooling/heating section () and removing tension from the thermoelastic material () of the first cooling/heating section ().

Cooling/heating module and air conditioning device

A valve case () includes a plurality of ports (P, P, P, . . . ). A valve body () rotates in the valve case () and slide on openings of predetermined ones of the ports (P, P, P, . . . ) to switch a communication state among the ports (P, P, P, . . . ). A motor () rotates the valve body (). A controller () controls a rotation speed (&#x3c9;) of the motor () in accordance with a differential pressure (&#x394;P) between internal and external pressures of the valve body ().

Refrigerant passage change-over valve and air conditioner using the same

A memory cell power supply circuit for each column includes a first PMOS transistor and a second PMOS transistor connected together in series between a first power supply and a second power supply. A connection point between the first and second PMOS transistors is output as a memory cell power supply. A control signal which is based on a column select signal and a write control signal is input to a gate terminal of the first PMOS transistor. A signal which is an inverted version of the signal input to the gate terminal of the first PMOS transistor is input to a gate terminal of the second PMOS transistor.

Semiconductor storage device

A movable valve element is provided so as to rotate about a predetermined shaft center. A first valve seat and a second valve seat are respectively arranged apart from the movable valve element with predetermined clearances on both sides of the movable valve element in a direction along the shaft center. A first sealing member is arranged around a communication path so as to seal a space inside the communication path from a space defined by the clearance on a side close to the first valve seat. A second sealing member is arranged around the communication path so as to seal the space inside the communication path from a space defined by the clearance on a side close to the second valve seat.

Rotary valve

An air conditioning apparatus includes a supercooling heat exchanger configured to exchange heat between a high-pressure refrigerant and a low-pressure refrigerant. A high-pressure liquid refrigerant pipe is wound around an external periphery of a low-pressure refrigerant suction pipe. Preferably, the supercooling heat exchanger is disposed inside the indoor unit at a position below an evaporator. Drain water from the evaporator is dispersed over the supercooling heat exchanger or a drain pipe leading from a drain pan of the evaporator is wound together with the high-pressure liquid refrigerant pipe around the low-pressure refrigerant suction pipe. In either case, cold energy of the drain water effectively acts on the high-pressure liquid refrigerant pipe to exchange heat. The supercooling heat exchanger operates with improved efficiency without any increase in the volume of the heat exchanger so that the evaporator can be made as small and compact as possible.

A refrigerant flow dividing apparatus of a heat exchanger for refrigerating apparatus is provided with a minimal number of refrigerant flow regulating valves and suppresses increase in the size and costs of the apparatus. Refrigerant is supplied to paths of the heat exchanger for refrigerating apparatus including a heat exchanger for reheat dehumidification via a refrigerant flow divider provided with paths. Each path of the refrigerant flow divider is provided with a refrigerant flow regulating valve, and a predetermined one of the refrigerant flow regulating valves of the paths also functions as a reheat dehumidification valve.

Refrigerant flow divider of heat exchanger for refrigerating apparatus

Based on a result of detection taken by the high-low pressure difference detection means () for detecting a difference between a high and a low pressure of a refrigeration cycle, an estimate of whether there is leakage of refrigerant in an expansion valve () is made. Based on the result detected by the high-low pressure difference detection means (), a control means () sets a reference temperature (T) to a value corresponding to the degree of refrigerant leakage in the expansion valve ().

Air conditioner having an ice melting operation terminated on the basis of refrigerant temperature and pressure

The invention provides a CMOS integrated circuit capable of carrying out an operation at a comparatively high supply voltage, comprising a first MOS type transistor having a drain profile to come in contact with a gate through a low concentration region having an impurity concentration which is equal to or lower than a predetermined concentration at a drain end, and a second MOS type transistor and transfer gate having the same polarity which is connected to a gate of the first MOS type transistor, wherein a gate voltage is applied to the gate of the first MOS type transistor through the second MOS type transistor and transfer gate to which a predetermined potential (a shielding voltage) is applied.

Semiconductor integrated circuit device

Growing community of inventors

Osaka, Japan

Makoto Kojima