Daikin Industries, Ltd.

Shun Yoshioka

Yoshiyuki Matsumoto

Yoshio Oritani

Satoshi Inoue

Tetsuya Okamoto

Masanori Jindou

Kazuhiro Furusho

Shouta Agou

Tomohiko Sakamaki

Tomoki Hirokawa

Takuya Kazusa

Yoshimasa Kikuchi

Shuji Ikegami

Kouju Yamada

Atsushi Yoshimi

Ikuhiro Iwata

Tomoya Yamaguchi

Tooru Andou

Toshimitsu Kamada

Hiroaki Matsuda

Ken Satou

Kazushige Kasai

Hideyuki Kusaka

Junichi Hamadate

Hirokazu Fujino

Hiroyuki Nakano

Akihiko Sakashita

Yoshio Ueno

Haruo Nakata

Shuji Fujimoto

Toshiyuki Kurihara

Yoshiharu Michitsuji

Eisaku Okubo

Takahisa Sueoka

Ryusuke Fujiyoshi

Tomohiro Nagano

Kaori Yoshida

Hirohiko Matsushita

Ryuhei Kaji

Hyunyoung Kim

Jihong Liu

Kanji Akai

Yasutaka Ohtani

Makio Takeuchi

Aya Okuno

Shougo Ohta

Guozhong Yang

Toshihiro Suzuki

Chiho Fujii

Chiho Kitayama

Nobuhiko Matsuo

Kento Kagohara

Takayuki Hyoudou

Keita Hattori

Akihiro Fujiwara

Yoshikazu Shiraishi

Ryuuhei Kaji

A heat exchanger includes: rows of heat transfer tubes disposed next to one another in an air flow direction; and headers each connected to an end of each of the rows of heat transfer tubes. A center position of an upstream-most header disposed on a most upstream side in the air flow direction among the headers is displaced upstream in the air flow direction from a center position of an upstream-most row of the heat transfer tubes to which the upstream-most header is connected such that the upstream-most header is spaced apart from a row of the heat transfer tubes adjacent to the upstream-most row of the heat transfer tubes.

Heat exchanger and air conditioner

A heat exchanger includes a heat transfer unit (HTU) including a heat transfer channel portion (HTCP) and auxiliary heat transfer portions (AHTPs). The HTCP and the AHTPs extend in a direction and are disposed in another direction being perpendicular to the direction. One of the AHTPs is an AHTP adjacent to the HTCP in another direction. When viewed from the direction, the AHTP is at an end of the HTU in another direction. A distance from the AHTP to the HTCP in another direction is defined as a length, in a case where the HTU further includes a plurality of HTCPs, the length is larger than a distance between adjacent ones of the HTCPs in another direction, and in a caser where the heat exchanger further includes a plurality of HTUs, the length is larger than a distance between the HTUs adjacent to each other in a direction different.

Heat exchanger

A heat exchanger includes: a flat tube having a width greater than a thickness of the flat tube; and fins fixed to the flat tube and that each include a plate-shaped fin body. The plate-shaped fin body of each of the fins faces the plate-shaped fin body of an adjacent one of the fins. Each of the fins has a tube receiving opening into which the flat tube is inserted. An edge of the tube receiving opening includes a first longitudinal side edge portion extending in a width direction of the flat tube. The tube receiving opening is in a notch shape that has: an open end on a first side of the first longitudinal side edge portion; and a closed end on a second side of the first longitudinal side edge portion.

A heat exchanger includes: heat transfer tubes aligned with one another; a header connected to end portions of the heat transfer tubes; and fins joined to the heat transfer tubes. When viewed in a longitudinal direction of the header and when the heat exchanger is used as an evaporator, the header is divided into: a circulation space including a first space in which refrigerant flows in a first direction along the longitudinal direction of the header and a second space in which the refrigerant flows in a second direction opposite to the first direction along the longitudinal direction; and an insertion space into which the heat transfer tubes are inserted. The header includes: a circulation division plate that divides the first space from the second space; and an insertion space forming plate that divides the circulation space from the insertion space.

A heat exchanger includes: a header that extends in a horizontal direction; and heat transfer tubes that extends in a direction crossing the horizontal direction, that are disposed side by side in a longitudinal direction of the header, and that are connected to the header. The header includes a first space that causes a refrigerant to flow in a first direction along the longitudinal direction of the header, a second space that causes the refrigerant to flow in a second direction along the longitudinal direction of the header and opposite to the first direction, a circulation member extends in the longitudinal direction of the header and separates the first space from the second space, a first communication port, a second communication port, and an inflow port.

A heat exchanger includes: a header that extends in a first direction; and a plurality of heat transfer tubes that extend in a second direction crossing the first direction, each of which has one end connected to the header, and that are arranged in the first direction at intervals. The header includes: a header body having a tubular shape, a first member through which the one end of each of the heat transfer tubes extends, and a second member positioned between the header body and the first member in the second direction. The second member includes: a base portion that extends in the first direction, and a plurality of protruding portions that extend from the base portion toward the first member in the second direction.

A heat exchanger exchanges heat between refrigerant flowing inside and air flowing outside. The heat exchanger includes: an upstream-side flat tube; downstream-side flat tubes on a downstream side of the upstream-side flat tube in a direction of air flow; and a space formation member that defines a distribution space in which the refrigerant coming out of the upstream-side flat tube is distributed to the downstream-side flat tubes.

A heat exchanger unit includes: a first heat exchanger including a first header, a second header, and a first flat pipe group that includes first flat multi-hole pipes connected to each of the first header and the second header; and a second heat exchanger: disposed in parallel with the first heat exchanger on an air downstream side, from the first heat exchanger, of air flow generated by a fan; and including a third header, a fourth header, and a second flat pipe group that includes second flat multi-hole pipes connected to each of the third header and the fourth header. The fourth header causes a refrigerant that flows in from the third header to flow out to the first header.

Heat exchanger unit

A heat exchanger including: rows of heat exchanging units that are superposed with one another in an air flow direction of the heat exchanger; and flat multi-hole tubes that extend from a first end toward a second of the heat exchanging units in a first direction in the heat exchanging units and that include gas-side flat multi-hole tubes. A refrigerant flows in the heat exchanging unit in the first direction. A number of the gas-side flat multi-hole tubes that are included in a front-most row heat exchanging unit on an airflow upstream side of the heat exchanger is less than a number of the gas-side flat multi-hole tubes included in a rear-most row heat exchanging unit on an airflow downstream side of the heat exchanger.

Heat exchanger and refrigeration apparatus

To improve the heat exchange efficiency of a heat exchanger that includes an upstream heat exchange unit and a downstream heat exchange unit. When the heat exchanger functions as an evaporator, a gas outlet pipe is an upstream refrigerant outlet that is located adjacent to the other end of upstream flat pipes of the upstream heat exchange unit, and a gas outlet pipe is a downstream refrigerant outlet that is located adjacent to the other end of downstream flat pipes of the downstream heat exchange unit. First resistance to refrigerant flow in the upstream heat exchange unit and second resistance to refrigerant flow in the downstream heat exchange unit are adjusted in order that the degree of superheating of refrigerant at the downstream refrigerant outlet is smaller than the degree of superheating of refrigerant at the upstream refrigerant outlet.

Heat exchanger having first and second heat exchange units with different refrigerant flow resistances and refrigeration apparatus

A heat exchanger including: a header; flat tubes connected to the header and disposed in line along a longitudinal direction of the header; a first partition that partitions an inner space of the header into a first space on a side where the flat tubes are connected and a second space on a side opposite to the first space; and a second partition that partitions the inner space of the header into a first side and a second side. The first side is one side of the header in the longitudinal direction and the second side is opposite to the first side. The first partition has a common opening. The common opening includes an insertion opening and a refrigerant opening. A refrigerant moves between the first space and the second space via the refrigerant opening. The second partition is inserted into the insertion opening.

A heat exchanger in which a refrigerant and air flow exchange heat includes a first heat-exchanging unit. The first heat-exchanging unit includes: a first header including a first gas refrigerant inlet/outlet; a second header including a first liquid refrigerant inlet/outlet; a plurality of first flat tubes disposed side by side in a longitudinal direction of the first header and the second header; and a first communication path formation portion that is connected to the first header and the second header and that forms a first communication path.

Heat exchanger or refrigeration apparatus

A heat exchanger in which a refrigerant that flows in from a first inlet and a second inlet exchanges heat with air flow and flows out from an outlet includes: an upwind heat-exchanging unit; a downwind heat-exchanging unit that includes the second inlet and is disposed beside the upwind heat-exchanging unit on a downwind side of the upwind heat-exchanging unit; and a flow path formation portion that includes a refrigerant flow path between the upwind heat-exchanging unit and the downwind heat-exchanging unit.

A heat exchanger includes: a header; flat tubes disposed in line along a longitudinal direction of the header and connected to the header: a refrigerant pipe connected to an introduction space in the header; and a nozzle. When the heat exchanger operates as an evaporator of a refrigerant, the refrigerant is fed through the nozzle from the introduction space to a supply space disposed adjacent to the introduction space in the longitudinal direction of the header. The nozzle is disposed on a side closer to the flat tubes than to the refrigerant pipe. A width of a first zone in the introduction space on the side closer to the flat tubes is smaller than a width of a second zone in the introduction space on a side where the refrigerant pipe is connected.

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.

Heat exchanger with air flow passage for exchanging heat

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Osaka, Japan

Shun Yoshioka