JPH0111943Y2 - - Google Patents
Info
- Publication number
- JPH0111943Y2 JPH0111943Y2 JP1982146757U JP14675782U JPH0111943Y2 JP H0111943 Y2 JPH0111943 Y2 JP H0111943Y2 JP 1982146757 U JP1982146757 U JP 1982146757U JP 14675782 U JP14675782 U JP 14675782U JP H0111943 Y2 JPH0111943 Y2 JP H0111943Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- inlet
- outlet
- nozzle
- cooling
- 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.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 42
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Supercharger (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
【考案の詳細な説明】
本考案はデイーゼルエンジン等の過給機に付設
される給気冷却器に関するものである。[Detailed Description of the Invention] The present invention relates to a charge air cooler attached to a supercharger of a diesel engine or the like.
周知のように、デイーゼルエンジン等において
は出力を向上させるためにシリンダ内への空気の
増大を図る過給が行われているが、例えばターボ
過給エンジンの場合、ブロワにより加圧された給
気の温度は通常150℃程度にも達する。したがつ
て、より高出力を達成するために給気冷却により
給気の密度を高めることがなされている。この給
気冷却は、エンジンの出力増加に伴うシリンダ内
の熱負荷の増大に対しても有効な上、空気過剰率
に余裕ができることから燃費率も向上する。 As is well known, in diesel engines etc., supercharging is performed to increase the amount of air into the cylinder in order to improve output. The temperature usually reaches around 150℃. Therefore, in order to achieve higher output, the density of the supply air is increased by cooling the supply air. This cooling of the air supply is effective against an increase in the heat load inside the cylinder due to an increase in engine output, and also improves the fuel consumption rate since there is a margin in the excess air ratio.
ところで、上記の給気冷却を行わしめる給気冷
却器は、従来、第１図に示すように構成されてい
る。すなわち、冷却管が冷却部１の内部に設けら
れ、この冷却管の入口ノズル１ａと出口ノズル１
ｂは上記冷却部１の同一外面に配設されるととも
に、上記入口ノズル１ａは入口管２に、また、上
記出口ノズル１ｂは出口管３にそれぞれ接続され
ている。上記入口管２の所要位置には弁４が設け
られ、かつ、入口管２と出口管３は分岐管５によ
り連絡される一方、この分岐管５には弁６が設け
られている。 Incidentally, the charge air cooler that performs the above-mentioned charge air cooling has conventionally been configured as shown in FIG. 1. That is, a cooling pipe is provided inside the cooling section 1, and an inlet nozzle 1a and an outlet nozzle 1 of this cooling pipe are connected to each other.
b are disposed on the same outer surface of the cooling section 1, the inlet nozzle 1a is connected to the inlet pipe 2, and the outlet nozzle 1b is connected to the outlet pipe 3. A valve 4 is provided at a required position on the inlet pipe 2, and the inlet pipe 2 and the outlet pipe 3 are communicated by a branch pipe 5, and a valve 6 is provided in the branch pipe 5.
この従来の給気冷却器において、矢印Ｉの方向
に流入せしめられる冷媒は、一部は冷却部１を通
過しながら、過給気からダクトＭを経て流入し、
ダクトＮを経てエンジンに送られる給気を冷却
し、残りは冷却部１を通ることなく分岐管５を通
つて出口管３に循環される。ここで、給気温度の
調節は二つの弁４，６を調節することにより行わ
れるのであるが、管路の流量を絞らないように二
つの弁４，６を調整をすることは操作が極めて繁
雑となり、また構造上も複雑となり、製作費も増
す難点がある。このため、入口管２の弁４を省い
たものも実施されているが、この管路系では分岐
管５の管路抵抗が冷却部１のそれと比べて大とな
り、該分岐管５の流量は小となり、流量が小さい
分岐管５の開度を弁６で調節しても冷却部１への
流量調節への影響は小さく、したがつて冷却部１
での給気温度の調整範囲が狭く最適な冷却効果を
発揮せしめ難いという不満があつた。 In this conventional charge air cooler, a part of the refrigerant flowing in the direction of the arrow I flows through the duct M from the supercharging air while passing through the cooling section 1.
The charge air sent to the engine via the duct N is cooled, and the rest is circulated to the outlet pipe 3 through the branch pipe 5 without passing through the cooling section 1. Here, the supply air temperature is adjusted by adjusting the two valves 4 and 6, but it is extremely difficult to adjust the two valves 4 and 6 so as not to restrict the flow rate of the pipe. There are disadvantages in that it is complicated, the structure is complicated, and the production cost increases. For this reason, a system in which the valve 4 of the inlet pipe 2 is omitted has been implemented, but in this pipe system, the pipe resistance of the branch pipe 5 is larger than that of the cooling section 1, and the flow rate of the branch pipe 5 is Even if the opening degree of the branch pipe 5 with a small flow rate is adjusted by the valve 6, the influence on the flow rate adjustment to the cooling section 1 is small.
There were complaints that the adjustment range for the supply air temperature was narrow, making it difficult to achieve the optimum cooling effect.
本考案は上記の事情に鑑み、分岐管の構成、管
路系の圧損失等につき様々な可能性を検討し勘案
した結果案出するに至つたもので、冷却管が給気
ダクトの内部に設けられた冷却部を有し、上記冷
却管の入口ノズルに入口管が、また、上記冷却管
の出口ノズルに出口管がそれぞれ連絡されて成る
給気冷却器において、上記入口ノズルと出口ノズ
ルとを、取付フランジにより冷却部に着脱自在に
取り付け、上記入口ノズルと出口ノズルとに、両
開口部に結合フランジを備え、かつ上記入口ノズ
ルと出口ノズルの開口方向にほぼ直交する面内で
Ｕ字状に折り曲げられた分岐管の一方の端部と他
方の端部をほぼ直角にそれぞれ接続し、上記分岐
管の上記入口ノズル側の開口部に、入口管を、ま
た上記出口ノズル側の開口部に、出口管を上記結
合フランジを利用してそれぞれ接続するととも
に、上記分岐管の上記入口ノズルと出口ノズルと
の間の部分に分岐管の開度を調節する弁を設ける
ことにより、従来のものに比べて給気温度の調整
がより広い範囲において可能で、しかも保守点検
がしやすい給気冷却器を提供することを目的とす
るものである。 In view of the above circumstances, the present invention was devised after considering various possibilities regarding the configuration of branch pipes, pressure loss in the pipe system, etc. In the supply air cooler, the inlet nozzle is connected to the inlet nozzle of the cooling pipe, and the outlet nozzle is connected to the outlet nozzle of the cooling pipe. is removably attached to the cooling unit by a mounting flange, the inlet nozzle and the outlet nozzle are provided with connecting flanges at both openings, and the inlet nozzle and the outlet nozzle have a U-shape in a plane substantially orthogonal to the opening direction of the outlet nozzle. One end and the other end of the branch pipe bent into a shape are connected at almost right angles, and the inlet pipe is connected to the opening on the inlet nozzle side of the branch pipe, and the inlet pipe is connected to the opening on the outlet nozzle side of the branch pipe. In addition to connecting the outlet pipes using the coupling flanges, a valve for adjusting the opening degree of the branch pipe is provided between the inlet nozzle and the outlet nozzle of the branch pipe, thereby improving the conventional method. It is an object of the present invention to provide a supply air cooler that allows adjustment of supply air temperature over a wider range than that of the previous invention and that is easier to maintain and inspect.
以下、本考案を図面に基づいて詳細に説明す
る。第２図および第３図は本考案の一実施例を示
すもので、過給気からエンジンに供給される給気
を冷却する冷却器の冷却部１０に入口管１１と出
口管１２が付設されている。上記冷却部１０の内
部には、従来のものと同様に所要の冷却面積を有
する管束がヘツダー管に接続されて成る冷却管１
３が設けられており、また、この冷却管１３の入
口ノズル１４と出口ノズル１５が、上記冷却部１
０の同一外面にそれぞれ取付フランジ１４ａ，１
５ａを介して取付け、配置されている。上記入口
管１１と出口管１２は互いにほぼ平行に設けられ
ており、入口管１１と出口管１２を接続するＵ字
形の分岐管１６の各直線部には上記入口ノズル１
４および出口ノズル１５が、それぞれ上記分岐管
１６に直角に接続されている。さらに入口管１１
と出口管１２を連絡するＵ字形の分岐管１６の出
口ノズル１５の近くに弁１７が設けられている。
上記Ｕ字形の分岐管１６と出入口ノズル１５，１
４は一体に形成されており、前記出入口ノズル１
５，１４のフランジ１５ａ，１４ａおよび出入口
管１２，１１と分岐管１６とを結合する結合フラ
ンジ１６ａ，１６ｂの締結を解けば、冷却部１０
および出入口管１２，１１から一括して取外すこ
とができるようになつている。 Hereinafter, the present invention will be explained in detail based on the drawings. Figures 2 and 3 show an embodiment of the present invention, in which an inlet pipe 11 and an outlet pipe 12 are attached to a cooling section 10 of a cooler that cools charge air supplied to the engine from supercharging air. ing. Inside the cooling unit 10, a cooling pipe 1 is provided, which is made up of a tube bundle having a required cooling area and connected to a header pipe, similar to the conventional one.
3 is provided, and the inlet nozzle 14 and outlet nozzle 15 of this cooling pipe 13 are connected to the cooling section 1.
Mounting flanges 14a and 1 are mounted on the same outer surface of 0, respectively.
It is attached and arranged via 5a. The inlet pipe 11 and the outlet pipe 12 are provided substantially parallel to each other, and each straight section of the U-shaped branch pipe 16 connecting the inlet pipe 11 and the outlet pipe 12 has the inlet nozzle 1.
4 and an outlet nozzle 15 are each connected at right angles to the branch pipe 16. Furthermore, the inlet pipe 11
A valve 17 is provided near the outlet nozzle 15 of the U-shaped branch pipe 16 that communicates the outlet pipe 12 with the outlet pipe 12 .
The above U-shaped branch pipe 16 and the inlet/outlet nozzle 15,1
4 is integrally formed, and the inlet/outlet nozzle 1
If the flanges 15a, 14a of 5 and 14 and the connecting flanges 16a, 16b connecting the inlet/outlet pipes 12, 11 and the branch pipe 16 are unfastened, the cooling unit 10
and can be removed from the inlet/outlet pipes 12, 11 all at once.
本考案は以上のように構成され、冷媒は図中矢
印Ａで示すように入口管１１から入口ノズル１４
を経て冷却管１３に流入して給気を冷却した後、
出口ノズル１５を経て出口管１２に至り循環され
る。また、一部の冷媒は分岐管１６を通過しその
まま出口管１２に流れ込む。ここで、給気温度の
調節は弁１７を操作し分岐管１６に流れる冷媒量
を調節することによりなされる。 The present invention is constructed as described above, and the refrigerant flows from the inlet pipe 11 to the inlet nozzle 14 as shown by arrow A in the figure.
After flowing into the cooling pipe 13 and cooling the supply air,
It reaches the outlet pipe 12 via the outlet nozzle 15 and is circulated. Further, a part of the refrigerant passes through the branch pipe 16 and flows into the outlet pipe 12 as it is. Here, the supply air temperature is adjusted by operating the valve 17 and adjusting the amount of refrigerant flowing into the branch pipe 16.
以上のように本考案の給気冷却器は、冷却管が
給気ダクトの内部に設けられた冷却部を有し、上
記冷却管の入口ノズルに入口管が、また、上記冷
却管の出口ノズルに出口管がそれぞれ連絡されて
成る給気冷却器において、上記入口ノズルと出口
ノズルとは、取付フランジにより冷却部に着脱自
在に取り付けられ、上記入口ノズルと出口ノズル
とに、両開口部に結合フランジを備え、かつ上記
入口ノズルと出口ノズルの開口方向にほぼ直交す
る面内でＵ字状に折り曲げられた分岐管の一方の
端部と他方の端部がほぼ直角にそれぞれ接続さ
れ、上記分岐管の上記入口ノズル側の開口部に
は、入口管が、また上記出口ノズル側の開口部に
は、出口管が上記結合フランジを利用してそれぞ
れ接続されるとともに、上記分岐管の上記入口ノ
ズルと出口ノズルとの間の部分に分岐管の開度を
調節する弁が設けられて成り、冷却器内の冷媒管
路系の圧損失に対して、従来のものに比べて、よ
り圧損失を少い形状にした分岐管１６を設けたこ
とによつて、その分だけ分岐管１６に冷媒が流れ
易くなつているために、分岐管１６に設けている
弁１７の開度を全閉から全開に調整することによ
つて、冷却器の冷却部１０に流入する冷媒の量は
全量から微量（実験的には冷却効果がなくなる程
度）まで調節され、給気温度を広範囲において任
意に調節可能となる。しかもこの温度調節は単一
の弁１７を操作するだけで良いので、操作が容易
であること、従来のもの（第１図）においては２
弁を同時に絞つた場合（誤操作等によつて）にお
いては冷媒管路の全流量が絞られることにより、
同冷却系に接続されている他の冷却装置の効果を
阻害する危険があるが、本考案においては冷却部
１０と分岐管１６を流れる冷媒の合計は常に一定
であり、全流量が絞られる危険がなく安全である
こと、また、入口ノズルと出口ノズル、及び分岐
管が、取付フランジと結合フランジにより冷却部
と入口管、及び出口管に着脱自在とされているの
で、保守点検が容易であること、更に構造が簡単
であり、しかも分岐管がＵ字状に折り曲げられて
いるため、冷却部に対する入口管と出口管の接続
部をコンパクトにまとめることができること等の
利点がある。このように本考案は実用上の効果を
有する給気冷却器を提供することができる。 As described above, the supply air cooler of the present invention has a cooling section in which the cooling pipe is provided inside the supply air duct, and the inlet pipe is located at the inlet nozzle of the cooling pipe, and the inlet nozzle is located at the outlet nozzle of the cooling pipe. In the supply air cooler, the inlet nozzle and the outlet nozzle are removably attached to the cooling part by a mounting flange, and the inlet nozzle and the outlet nozzle are connected to both openings. One end and the other end of a branch pipe provided with a flange and bent into a U-shape in a plane substantially perpendicular to the opening direction of the inlet nozzle and the outlet nozzle are connected at a substantially right angle, and the branch pipe An inlet pipe is connected to the opening on the inlet nozzle side of the pipe, and an outlet pipe is connected to the opening on the outlet nozzle side using the coupling flange, and the inlet nozzle of the branch pipe A valve that adjusts the opening degree of the branch pipe is provided between the outlet nozzle and the outlet nozzle, which reduces pressure loss in the refrigerant piping system in the cooler compared to conventional ones. By providing the branch pipe 16 with a smaller shape, it becomes easier for the refrigerant to flow into the branch pipe 16, so the opening degree of the valve 17 provided in the branch pipe 16 can be changed from fully closed to fully open. By adjusting the amount of refrigerant flowing into the cooling section 10 of the cooler, the amount of refrigerant flowing into the cooling section 10 of the cooler can be adjusted from the entire amount to a minute amount (experimentally, the cooling effect is lost), and the supply air temperature can be adjusted arbitrarily over a wide range. Become. Moreover, this temperature control is easy because it only requires the operation of a single valve 17.
If the valves are throttled at the same time (due to incorrect operation, etc.), the total flow rate of the refrigerant pipe will be throttled.
Although there is a risk of inhibiting the effectiveness of other cooling devices connected to the same cooling system, in the present invention, the total amount of refrigerant flowing through the cooling section 10 and the branch pipe 16 is always constant, so there is a risk that the total flow rate will be throttled. In addition, maintenance and inspection are easy because the inlet nozzle, outlet nozzle, and branch pipe can be attached to and detached from the cooling section, inlet pipe, and outlet pipe using the mounting flange and connecting flange. Furthermore, since the structure is simple and the branch pipe is bent into a U-shape, there are advantages such as the ability to compactly connect the inlet pipe and outlet pipe to the cooling section. Thus, the present invention can provide a charge air cooler with practical effects.
第１図は従来の給気冷却器の冷媒入口、出口部
の平面図、第２図と第３図は本考案の一実施例を
示すもので、第２図は冷媒入口、出口部の平面
図、第３図は同側面図である。
１０……冷却部、１１……入口管、１２……出
口管、１６……分岐管、１７……弁。
Figure 1 is a plan view of the refrigerant inlet and outlet of a conventional charge air cooler; Figures 2 and 3 show an embodiment of the present invention; Figure 2 is a plane view of the refrigerant inlet and outlet. FIG. 3 is a side view of the same. 10... Cooling section, 11... Inlet pipe, 12... Outlet pipe, 16... Branch pipe, 17... Valve.
Claims (1)
れた冷却部１０を有し、上記冷却管１３の入口ノ
ズル１４に入口管１１が、また、上記冷却管１３
の出口ノズル１５に出口管１２がそれぞれ連絡さ
れて成る給気冷却器において、上記入口ノズル１
４と出口ノズル１５とは、取付フランジ１４ａ，
１５ａにより冷却部１０に着脱自在に取り付けら
れ、上記入口ノズル１４と出口ノズル１５とに、
両開口部に結合フランジ１６ａ，１６ｂを備え、
かつ上記入口ノズル１４と出口ノズル１５の開口
方向にほぼ直交する面内でＵ字状に折り曲げられ
た分岐管１６の一方の端部と他方の端部がほぼ直
角にそれぞれ接続され、上記分岐管１６の上記入
口ノズル１４側の開口部には、入口管１１が、ま
た上記出口ノズル１５側の開口部には、出口管１
２が上記結合フランジ１６ａ，１６ｂを利用して
それぞれ接続されるとともに、上記分岐管１６の
上記入口ノズル１４と出口ノズル１５との間の部
分に分岐管１６の開度を調節する弁１７が設けら
れて成ることを特徴とする給気冷却器。 A cooling pipe 13 has a cooling section 10 provided inside the air supply ducts M, N, and an inlet pipe 11 is provided at an inlet nozzle 14 of the cooling pipe 13.
In the supply air cooler, the outlet nozzles 15 of the inlet nozzles 1 and the outlet pipes 12 are connected to each other.
4 and the outlet nozzle 15 are the mounting flange 14a,
15a to be detachably attached to the cooling unit 10, and to the inlet nozzle 14 and the outlet nozzle 15,
Both openings are provided with coupling flanges 16a and 16b,
In addition, one end and the other end of a branch pipe 16 bent in a U-shape in a plane substantially perpendicular to the opening direction of the inlet nozzle 14 and the outlet nozzle 15 are connected to each other at a substantially right angle, and the branch pipe 16, the inlet pipe 11 is connected to the opening on the inlet nozzle 14 side, and the outlet pipe 1 is connected to the opening in the outlet nozzle 15 side.
2 are connected to each other using the coupling flanges 16a and 16b, and a valve 17 for adjusting the opening degree of the branch pipe 16 is provided in a portion between the inlet nozzle 14 and the outlet nozzle 15 of the branch pipe 16. A charge air cooler characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675782U JPS5952035U (en) | 1982-09-28 | 1982-09-28 | Charge air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675782U JPS5952035U (en) | 1982-09-28 | 1982-09-28 | Charge air cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5952035U JPS5952035U (en) | 1984-04-05 |
| JPH0111943Y2 true JPH0111943Y2 (en) | 1989-04-07 |
Family
ID=30326570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14675782U Granted JPS5952035U (en) | 1982-09-28 | 1982-09-28 | Charge air cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5952035U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6088788B2 (en) * | 2012-10-25 | 2017-03-01 | ヤンマー株式会社 | engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337138B2 (en) * | 1975-04-22 | 1978-10-06 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337138U (en) * | 1976-09-07 | 1978-04-01 | ||
| JPS5357139U (en) * | 1976-10-16 | 1978-05-16 |
-
1982
- 1982-09-28 JP JP14675782U patent/JPS5952035U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337138B2 (en) * | 1975-04-22 | 1978-10-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5952035U (en) | 1984-04-05 |
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