JPH02171543A - Piping box - Google Patents
Piping boxInfo
- Publication number
- JPH02171543A JPH02171543A JP32526988A JP32526988A JPH02171543A JP H02171543 A JPH02171543 A JP H02171543A JP 32526988 A JP32526988 A JP 32526988A JP 32526988 A JP32526988 A JP 32526988A JP H02171543 A JPH02171543 A JP H02171543A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- air
- port
- piping box
- piping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
Landscapes
- Duct Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は部屋を空調するため天井裏等に配管されるダ
クトの交差部に使用する配管ボックスに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a piping box used at the intersection of ducts installed in the ceiling or the like for air conditioning a room.
従来、ダクト配管による空気調和は、例えば特開昭６３
−１８００２６号公報に示されるように空気調和機に各
階の部屋と連通するダクトを接続し、冷却あるいは加熱
された空気をこのダクトを介して各部屋に送風すること
によって行われるようになっている。Conventionally, air conditioning using duct piping has been achieved, for example, in Japanese Patent Application Laid-Open No. 63
- As shown in Publication No. 180026, this is done by connecting an air conditioner to a duct that communicates with the rooms on each floor, and blowing cooled or heated air to each room through this duct. .
上記のような従来の空気調和における配管では、ダクト
配管を１階と２階との間に形成される天井裏の狭い空間
で行わなければならず、特に１階と２階とを２系統のダ
クトで行う場合には、第８図に示すようにファンコイル
ユニット等の空気調和ｆｉ （１１に接続され２階の部
屋に連通ずる第１のダクト（２］と、同様に１階の部屋
に連通ずる第２のダクト（３）とは、１階および２階の
部屋の配列によっては一方のダクトが他方のダクトに当
たらないよう曲げて交差部４）を形成しなければならず
、作業性が悪く、また、この交差部（４）は高さ寸法を
多く必要とし、天井裏の空間が狭いことから配管作業が
困難であるばかりか送風時の圧力損失が多くなり、配管
できなくなるという課題があった。In conventional air conditioning piping as described above, duct piping must be carried out in a narrow space under the attic between the first and second floors. When using a duct, as shown in Figure 8, the first duct (2), which is connected to the air conditioning fi (11) such as a fan coil unit and communicates with the room on the second floor, and the first duct (2), which is connected to the room on the first floor, as shown in Figure 8. Depending on the arrangement of the rooms on the first and second floors, the second communicating duct (3) must be bent to form an intersection 4) so that one duct does not hit the other. In addition, this intersection (4) requires a large height dimension, and the space under the ceiling is narrow, making piping work difficult, as well as increasing pressure loss when blowing air, making piping impossible. was there.
この発明は係る課題を解決するなめになされたもので、
小さな寸法内でダクトを交差させて配管することができ
、天井裏等の狭い空間でも配管作業が容易である配管ボ
ックスを得ることを目的とするものである。This invention was made to solve the problem,
The object of the present invention is to obtain a piping box in which ducts can be crossed and piped within a small dimension, and piping work can be easily performed even in a narrow space such as an attic.
また、冷風、温風を通しても結露および放熱がない配管
ボックスを得ることを目的とするものである。Another object of the present invention is to obtain a piping box that does not cause condensation or heat radiation even when cold air or hot air is passed through it.
さらに、接続されるダクトの融通性が良好な配管ボック
スを得ることを目的とするものである。Furthermore, it is an object of the present invention to obtain a piping box that has good flexibility in connecting ducts.
この発明に係る配管ボックスは、中空かつ箱状に形成さ
れ対向する側壁にダクトが接続されるダクト接続口を設
けるとともに、他の対向する側壁にダクトが貫通するダ
クト貫通口を設けたものである。The piping box according to the present invention is hollow and box-shaped, and is provided with a duct connection port through which a duct is connected to the opposing side wall, and a duct through port through which the duct passes through the other opposing side wall. .
また、側壁を断熱材で形成したものである。Furthermore, the side walls are made of a heat insulating material.
さらに、ダクト接続口とダクト貫通口をほぼ同一径に形
成したものである。Furthermore, the duct connection port and the duct through-hole are formed to have approximately the same diameter.
この発明においては、中空かつ箱状に形成され対向する
側壁に設けられたダクト接続口にダクトを接続し、他の
対向する側壁に設けられたダクト貫通口にダクトを貫通
させることにより、ダクトを曲げることなく交差させる
ことができ、寸法が小さく作業性が良好になる。In this invention, the duct is connected to the duct connection port provided on the hollow and box-shaped side wall facing each other, and the duct is passed through the duct through port provided on the other facing side wall. It can be crossed without bending, and the size is small and workability is good.
また、側壁を断熱材で形成したから、外部とは熱的に遮
断することができ、結露および放熱かない。In addition, since the side walls are made of a heat insulating material, it can be thermally isolated from the outside, and there is no condensation or heat radiation.
さらに、ダク）・接続口とダクト貫通口をほぼ同一径で
形成したから、ダクトの内径と外径の使い分けで異なる
径のダクトの接続および貫通が可能となり、ダクト接続
の融通性が良くなる。Furthermore, since the duct connection port and the duct penetration port are formed with approximately the same diameter, it is possible to connect and penetrate ducts of different diameters by properly using the inner and outer diameters of the ducts, improving the flexibility of duct connections.
第１図〜第７図はこの発明の一実施例を示す図であり、
図において（１１）は表面をコーティングした厚さ２５
ｍ ｍのガラスウールの断熱材により高さｈを２５０ｍ
ｍに中空かつ箱状に形成された配管ボックス本体で、
対向する側壁には開口（１２）が設けられるとともに、
これら開口には板金により形成された内径１５０ｍ ｍ
のフランジ（１３）が取着され、一方の対向する側壁に
設けられた開口部をダクト接続口（Ｉ４）とし、他方の
対向する側壁に設けられた開口部をダクト貫通口（１５
）とする。（１６）はダクト接続口（１４）に内径部が
嵌合し配管ボックス本体（ＩＩ）との当接部外周にアル
ミテープ（１７）が巻かれエアー漏れ防止された市販の
第１ダクトで、外径が２００ｍ ｍ、内径が１５０ｍｍ
のガラスウールの断熱材の表面をコーティングして形成
されている。FIGS. 1 to 7 are diagrams showing an embodiment of the present invention,
In the figure (11) is the thickness of the surface coating 25
The height h is 250m with glass wool insulation of m m.
The main body of the piping box is hollow and box-shaped.
Opposing side walls are provided with openings (12), and
These openings are made of sheet metal with an inner diameter of 150 mm.
flange (13) is attached, the opening provided on one opposing side wall is used as the duct connection port (I4), and the opening provided on the other opposing side wall is used as the duct through port (15).
). (16) is a commercially available first duct whose inner diameter part fits into the duct connection port (14) and aluminum tape (17) is wrapped around the outer periphery of the contact part with the piping box body (II) to prevent air leakage. Outer diameter is 200mm, inner diameter is 150mm
It is formed by coating the surface of glass wool insulation material.
（１８）はダクト貫通口（１５）を貫通する市販の第２
ダクトで、フランジ（１３）端部外周にはアルミテープ
（１７）が巻かれエアー漏れ防止され、外径が１５０ｍ
ｍ、内径が１００ｍ ｍのガラスウールの断熱材の表面
をコーティングして形成されている。（Ｉ９）は２階建
ての家屋、（２０）はこの家屋の２階室、（２））はこ
の家屋の１階室、（２２）は２階室と１階室との間に形
成される天井裏空間、（２３）は機械室、（２４）は熱
交換装置で、吸込口（２５）と吐出口（２６）とを室内
側と室外側のそれぞれに一組づつ設けた熱交ケーシング
（２７）内に室内側から室外側に至る排気通路（２８）
と給気通路（２９）とを上記吸込口（２５）と吐出口（
２６）との間で交差するように設け、上記排気通路（２
８）には排気流を形成する送風＠ （３０１を、上記給
気通路（２９）には給気流を形成する送風Ｒ（３１）を
設けるとともに、上記交差部に上記排気流と吸気流との
間で温度と湿度を同時にかつ連続的に全熱交換する熱交
換器（３２）をもうけて形成されている。(18) is a commercially available second tube that penetrates the duct penetration hole (15).
The duct has an aluminum tape (17) wrapped around the edge of the flange (13) to prevent air leakage, and has an outer diameter of 150 m.
It is formed by coating the surface of a glass wool insulation material with an inner diameter of 100 mm. (I9) is a two-story house, (20) is a room on the second floor of this house, (2)) is a room on the first floor of this house, and (22) is formed between the room on the second floor and the first floor. (23) is a machine room, (24) is a heat exchange device, and a heat exchanger casing has one set of suction ports (25) and one set of discharge ports (26) on the indoor side and the outdoor side. (27) Exhaust passage from the indoor side to the outdoor side (28)
and the air supply passageway (29), and the suction port (25) and the discharge port (
The exhaust passage (26) is provided so as to intersect with the exhaust passage (26).
8) is provided with an air blower @ (301) that forms an exhaust flow, and the air supply passage (29) is provided with an air blower R (31) that forms an air supply flow, and at the intersection between the exhaust flow and the intake air flow. It is formed with a heat exchanger (32) that simultaneously and continuously exchanges total heat between the temperature and humidity.
（３３）はファンコイルユニット等の空気調和機で、上
記熱交換装置（２４）の室内側吸込口（２５）と室内側
吐出口（２６）にそれぞれ第１または第２ダクト（１６
）（１８）を介して連設される給気口（３４） （３４
）を−側壁に設けるとともに、他側壁にこれら給気口（
３４） （３４）と連通ずる吹出口（３５） （３５）
を設けた空調機ゲージング（３６）内に上記給気口（３
４）から上記吹出口（３５）に至る第１通風路（３７）
および第２通風路（３８）をそれぞれ仕切［（３９）を
介して独立して設け、上記第１通ｔｕｇ（３７）内およ
び第２通風路（３８）内にはそれぞれ単独運転可能に形
成した送風機（４０） （４１）が設けられているとと
もに、冷暖房用コイル（４２）が各通風路（３，７Ｈ３
８）に跨って設けられている。（４３）は冷暖房用コイ
ルに冷水あるいは温水を供給するだめの冷温水発生器で
ある。上記空気調和機（３３）の一方の吹出口（３５）
には第１ダクト（１６）が接続され、この第１ダクト（
１６）が天井裏空間（２２）を通して２ ｌ＠室（２０
）と連設され、他方の吹出口（３５）には第１ダクト（
１６）が接続され、この第１ダクト（１６）が天井裏空
間（２２）を通して１階室（２））と連設され、天井裏
空間（２２）でダクトの交差部が形成されるときには、
第４図に示すように交差させる。なお、第２図中の実線
は２階側給気ダクト、−点鎖線は１階側給気ダクト、破
線は２階、１階の戻りダクトを示す。(33) is an air conditioner such as a fan coil unit, and a first or second duct (16) is connected to the indoor suction port (25) and the indoor discharge port (26) of the heat exchanger (24), respectively.
) (18) and air supply ports (34) (34
) are provided on the - side wall, and these air supply ports (
34) (34) and the sliding outlet (35) (35)
The air supply port (3) is installed in the air conditioner gauging (36) provided with
4) to the above-mentioned air outlet (35).
and a second ventilation passage (38) were provided independently through a partition [(39), and each of the first ventilation passage (37) and the second ventilation passage (38) was formed so as to be able to operate independently. Air blowers (40) (41) are provided, and heating and cooling coils (42) are installed in each ventilation path (3, 7H3).
8). (43) is a cold/hot water generator for supplying cold water or hot water to the cooling/heating coil. One outlet (35) of the air conditioner (33)
is connected to the first duct (16), and this first duct (
16) passes through the attic space (22) to 2 l @ room (20
), and the other outlet (35) has a first duct (
16) is connected, this first duct (16) is connected to the first floor room (2)) through the attic space (22), and the intersection of the ducts is formed in the attic space (22).
Cross as shown in Figure 4. In addition, the solid line in FIG. 2 shows the air supply duct on the second floor side, the dashed line shows the air supply duct on the first floor side, and the broken line shows the return duct on the second floor and the first floor.
上記のように構成された配管ボックスにおいては、各部
屋を冷房あるいは暖房するときは、冷温水発生器（４３
）により冷暖房用コイル（４２）に冷水あるいは温水を
供給して送風機（４０） （４１１を運転することによ
り空気を冷風あるいは温風としてダクト（１６１（＋８
＞を通して各部屋に吹き出すことにより行うようになっ
ている。一方、部屋の空気は各部屋に連設されたダクト
（１６）または（１８）により空気調和機（３３）に戻
される。このとき、１階と２階は送風Ｉｆ！１（４０）
（４１）が単独に運転できることから一方の送風機の
みを運転して必要に応じた暖房・冷房を行うことができ
る。このようにして冷暖房がなされるが、部屋の空気が
汚れた場合には熱交換装置（２４）の送風機（３０）
（３１）を運転して、汚れた空気を排出するようにし、
外気を供給するようにしてやる。このとき室外空気は熱
交換器（３２）により排気流と吸気流との間で熱交換さ
れ、冷房時には室外空気の温度を下げ、暖房時には室外
空気の温度を上げて部屋に供給されることになり、冷暖
房効率の低下を防止する。In the piping box configured as described above, when cooling or heating each room, a cold/hot water generator (43
) supplies cold water or hot water to the air conditioning coil (42) and operates the blower (40) (411) to turn the air into cold or warm air into the duct (161 (+8
This is done by blowing out air into each room through the On the other hand, the air in the room is returned to the air conditioner (33) through a duct (16) or (18) connected to each room. At this time, the first and second floors are vented! 1 (40)
(41) can be operated independently, so heating and cooling can be performed as needed by operating only one blower. Air conditioning and heating are performed in this way, but if the air in the room becomes dirty, the blower (30) of the heat exchanger (24)
(31) to exhaust dirty air,
I'll try to supply outside air. At this time, the outdoor air is heat exchanged between the exhaust air flow and the intake air flow by the heat exchanger (32), and the temperature of the outdoor air is lowered during cooling, and the temperature of the outdoor air is increased during heating, and then supplied to the room. This prevents a decline in heating and cooling efficiency.
こうして、冷風あるいは温風を通す第１ダクト（１６）
、第２ダク１−（１８）は天井裏空間（２２）で交差す
るが、この交差部分における工事は、第４図に示すよう
に第１ダクト（＋６）を配管ボックス本体（１１）のダ
クト接続口（１４）に接続してアルミテープ（１７）で
巻いて取着し、第２ダクト（１８）を配管ボックス本体
（１１）のダクト貫通口（１５）を貫通させてアルミテ
ープ（１７）を巻いて取着することにより行われる。In this way, the first duct (16) that passes cold air or hot air
, the second duct 1-(18) intersects in the attic space (22), but the construction work at this intersection is to connect the first duct (+6) to the duct of the piping box body (11) as shown in Figure 4. Connect to the connection port (14) and wrap it with aluminum tape (17) to attach it, pass the second duct (18) through the duct penetration port (15) of the piping box body (11), and wrap it with aluminum tape (17). This is done by winding and attaching.
これにより、一方の第１ダクト（１６）から配管ボック
ス本体（１１）内に入った空気は、第２ダクト（＋８）
と配管ボックス本体（１１）の内壁との間にできる空間
から他の第１ダクト（１６）に入り各部屋へ送られる。As a result, air entering the piping box body (11) from one first duct (16) is transferred to the second duct (+8).
The water enters the other first duct (16) from the space created between the inside wall of the piping box body (11) and is sent to each room.
このとき、第２ダクト（１８）が丸形であるため配管ボ
ックス本体＜１１）内を通過する気流の圧力損失は低い
ものとなる。第２ダクト（１８）内を通る空気はそのま
ま第２ダクト（１８）を通って各部屋へ送られる。この
とき、配管ボックス本体（１１）が断熱材で形成されて
いることから熱的に遮断することができ、結露および放
熱がない。At this time, since the second duct (18) is round, the pressure loss of the airflow passing through the piping box body <11) is low. The air passing through the second duct (18) is directly sent to each room through the second duct (18). At this time, since the piping box body (11) is made of a heat insulating material, it can be thermally isolated, and there is no condensation or heat radiation.
なお、上記実施例ではダクト接続口（１４）に第１ダク
ト（１６）の内径側を嵌合させているが、第２ダクト（
１８）の外径側を第７図のようにダクト接続口（１４）
の内側に嵌合させても取着でき、その工事状態に応じて
いずれでも配管工事が可能となり融通性の高いものとな
る。In addition, in the above embodiment, the inner diameter side of the first duct (16) is fitted into the duct connection port (14), but the second duct (16) is fitted into the duct connection port (14).
Connect the outer diameter side of 18) to the duct connection port (14) as shown in Figure 7.
It can also be attached by fitting it inside the pipe, making it possible to perform piping work in either direction depending on the construction status, making it highly flexible.
また、配管ボックス本体（１１）を断熱材で形成してい
るが、板金で形成し断熱材を貼付しても同様の効果があ
る。Further, although the piping box body (11) is made of a heat insulating material, the same effect can be obtained even if it is made of a sheet metal and a heat insulating material is pasted thereon.
この発明は以上説明したとおり、中空かつ節状に形成さ
れ対向する側壁にダクトが接続されるダクト接続口を設
けるとともに、他の対向する側壁にダクトが貫通するダ
クト貫通口を設けたことにより、小さな寸法内でダクト
を交差させて配管することができ、天井裏等の狭い空間
でも配管作業が容易になる効果がある。As explained above, the present invention provides a duct connection port to which a duct is connected to the hollow and knot-shaped side wall facing each other, and a duct penetration port through which the duct passes through the other facing side wall. Ducts can be laid across each other within small dimensions, making piping work easier even in narrow spaces such as in ceilings.
また、側壁を断熱材で形成したことにより、冷風、温風
を通しても結露および放熱がない効果がある。Furthermore, since the side walls are made of a heat insulating material, there is no condensation or heat radiation even when cold or hot air is passed through.
さらに、ダクト接続口とダクト貫通口をほぼ同一径に形
成したことにより、接続されるダクトの融通性が良好に
なる効果がある。Furthermore, by forming the duct connection port and the duct through-hole to have substantially the same diameter, there is an effect that the flexibility of the ducts to be connected is improved.
第１図〜第７図はこの発明の一実施例を示す図で、第１
図は斜視図、第２図はこの発明の配管ボックスを使用し
た家屋の概略断面図、第３図は配管例を示す斜視図、第
４図は配管ボックスとダクトの接続を示す斜視図、第５
図はダクト接続口部分の断面図、第６図はダクト貫通口
部分の接続を示す断面図、第７図はダクト接続口に第２
ダクトを接続した状態を示す断面図、第８図は従来の配
管例を示す斜視図である。
図中、（１１）は配管ボックス本体、（１４）はダクト
接続口、（１５）はダグｌ−貫通口、（１６）は第１ダ
クト、（１８）は第２ダクトである。Figures 1 to 7 are diagrams showing one embodiment of the present invention.
The figure is a perspective view, Figure 2 is a schematic sectional view of a house using the piping box of the present invention, Figure 3 is a perspective view showing an example of piping, Figure 4 is a perspective view showing the connection between the piping box and duct, 5
The figure is a cross-sectional view of the duct connection port, Figure 6 is a cross-sectional view showing the connection of the duct through-hole, and Figure 7 is a cross-sectional view of the duct connection port.
FIG. 8 is a cross-sectional view showing a state in which the ducts are connected, and a perspective view showing an example of conventional piping. In the figure, (11) is the main body of the piping box, (14) is the duct connection port, (15) is the Doug L-through port, (16) is the first duct, and (18) is the second duct.
Claims (3)
接続されるダクト接続口を設けるとともに、他の対向す
る側壁にダクトが貫通するダクト貫通口を設けた配管ボ
ックス。(1) A piping box that is hollow and box-shaped and has a duct connection port through which a duct is connected on opposing side walls, and a duct through port through which a duct passes through the other opposing side wall.
クス。(2) The piping box according to claim 1, wherein the side wall is formed of a heat insulating material.
した請求項１または２記載の配管ボックス。(3) The piping box according to claim 1 or 2, wherein the duct connection port and the duct through port are formed to have substantially the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63325269A JPH0794913B2 (en) | 1988-12-23 | 1988-12-23 | Plumbing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63325269A JPH0794913B2 (en) | 1988-12-23 | 1988-12-23 | Plumbing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02171543A true JPH02171543A (en) | 1990-07-03 |
| JPH0794913B2 JPH0794913B2 (en) | 1995-10-11 |
Family
ID=18174925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63325269A Expired - Lifetime JPH0794913B2 (en) | 1988-12-23 | 1988-12-23 | Plumbing box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0794913B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029680A (en) * | 2004-07-15 | 2006-02-02 | Takenaka Komuten Co Ltd | Duct branching structure |
| FR2889297A1 (en) * | 2005-07-28 | 2007-02-02 | Airbus France Sas | Heat exchanger for propulsion unit, has pre heat-exchanger formed of physical crossing between cooling and hot air inlet lines, so that hot airflow and cool airflow cross each other perpendicular to each other |
| WO2020064073A1 (en) * | 2018-09-27 | 2020-04-02 | Airbynature Aps | Ventilation system with heat recovery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60238631A (en) * | 1984-05-12 | 1985-11-27 | Nippon Ranko Kk | Suction-exhaust duct |
| JPS6283134U (en) * | 1985-11-11 | 1987-05-27 |
-
1988
- 1988-12-23 JP JP63325269A patent/JPH0794913B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60238631A (en) * | 1984-05-12 | 1985-11-27 | Nippon Ranko Kk | Suction-exhaust duct |
| JPS6283134U (en) * | 1985-11-11 | 1987-05-27 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029680A (en) * | 2004-07-15 | 2006-02-02 | Takenaka Komuten Co Ltd | Duct branching structure |
| JP4601346B2 (en) * | 2004-07-15 | 2010-12-22 | 株式会社竹中工務店 | Duct branch structure |
| FR2889297A1 (en) * | 2005-07-28 | 2007-02-02 | Airbus France Sas | Heat exchanger for propulsion unit, has pre heat-exchanger formed of physical crossing between cooling and hot air inlet lines, so that hot airflow and cool airflow cross each other perpendicular to each other |
| US7823624B2 (en) | 2005-07-28 | 2010-11-02 | Airbus France | Heat exchanger, propulsion unit, and aircraft comprising such a propulsion unit |
| WO2020064073A1 (en) * | 2018-09-27 | 2020-04-02 | Airbynature Aps | Ventilation system with heat recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0794913B2 (en) | 1995-10-11 |
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