JPS635584B2 - - Google Patents
Info
- Publication number
- JPS635584B2 JPS635584B2 JP59226792A JP22679284A JPS635584B2 JP S635584 B2 JPS635584 B2 JP S635584B2 JP 59226792 A JP59226792 A JP 59226792A JP 22679284 A JP22679284 A JP 22679284A JP S635584 B2 JPS635584 B2 JP S635584B2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- demister
- bleed
- temperature
- air
- 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
- 230000002528 anti-freeze Effects 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 description 6
- 238000007710 freezing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10268—Heating, cooling or thermal insulating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
- F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
- F02M31/08—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はエンジンの吸気ダクト内に設置される
吸気デミスターの凍結防止装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an antifreeze device for an intake demister installed in an intake duct of an engine.
（従来の技術）
寒冷地または極地に近い海洋上では、冷気を吸
入して、吸気デミスターが凍結する惧れがあり、
吸気デミスターの凍結防止が１つの重要な課題に
なつている。第２図は、エンジンの高温抽気ガス
を噴出させ、吸気デミスターを通る気流の温度を
上昇させて、吸気デミスターの凍結を防止する吸
気デミスター凍結防止装置の従来例を示してお
り、吸気ダクト０４は、吸気口０１の全域に上向
きに、多段に配設したルーバー（斜め板）０３と
吸気デミスター０２の全域に垂直方向を指向して
多列に配設した折板０２ａとを有し、このルーバ
ー０３と吸気デミスター０２との中間位置に、高
温抽出ガスを噴出する抽気噴出孔０６を有し且つ
床板から天板へ延びてそれを貫通した複数本の抽
気噴出管０５ａ〜０５ｃが設けられており、吸気
口０１を通過した外気が抽気噴出管０５ａ〜０５
ｃの抽気噴出孔０６から噴出する高温抽気ガスに
より暖められて、吸気デミスター０２部に達し、
ここの折板０２ａ間を通過するときに、気流中に
含まれている水滴が除去されるとともに昇温した
気流により吸気デミスター０２の凍結が防止され
るようになつている。(Prior art) In cold regions or on the ocean near the polar regions, there is a risk that the intake demister may freeze due to inhalation of cold air.
Preventing the intake demister from freezing has become an important issue. Fig. 2 shows a conventional example of an intake demister antifreeze device that prevents the intake demister from freezing by blowing out high-temperature bleed gas from the engine and increasing the temperature of the airflow passing through the intake demister. , has louvers (diagonal plates) 03 arranged upward in multiple stages over the entire area of the intake port 01, and folded plates 02a arranged in multiple rows oriented vertically over the entire area of the intake demister 02. At an intermediate position between 03 and the intake demister 02, a plurality of bleed jet pipes 05a to 05c are provided, each having a bleed jet hole 06 for jetting high-temperature extraction gas, and extending from the floor plate to the top plate and passing through it. , outside air that has passed through the intake port 01 is extracted from the air extraction pipes 05a to 05.
It is warmed by the high-temperature bleed gas ejected from the bleed air outlet 06 of c, and reaches the intake demister 02,
When the air passes between the folded plates 02a, water droplets contained in the airflow are removed and the heated airflow prevents the intake demister 02 from freezing.
（発明が解決しようとする問題点）
前記第２図の吸気デミスター凍結防止装置で
は、吸気口０１を通過した外気が矢印０８ａのよ
うに上向きの流れになつており、吸気ダクト０４
の中間附近では、床面に近い下部の気流の流速と
天板に近い上部の気流の流速とに大きな差が生じ
て、前者よりも後者の方が速くなつている。一
方、各抽気噴出管０５ａ〜０５ｃに鉛直方向に沿
つて設けられた各抽気噴出孔０６からはエンジン
の高温抽気ガスが均一に噴出するので、各抽気噴
出管０５ａ〜０５ｃの上部に設けた抽気噴出孔６
から噴出する高温抽気ガス気流により薄められる
傾向があり、吸気デミスター０２に向う混合気流
（外気と高温抽気ガスとの混合気流）のうち、上
部を流れる混合気流の温度が下部を流れる混合気
流の温度よりも低くなり、吸気デミスター０２の
上部が規定温度以下になつて、その部分に水分の
凍結する惧れがあつた。(Problems to be Solved by the Invention) In the intake demister antifreeze device shown in FIG.
Near the middle, there is a large difference between the flow velocity of the lower airflow near the floor surface and the flow velocity of the upper airflow near the top plate, with the latter being faster than the former. On the other hand, since the high-temperature bleed gas of the engine is uniformly ejected from each bleed air jet hole 06 provided along the vertical direction in each bleed air jet pipe 05a to 05c, the bleed air provided above each bleed jet pipe 05a to 05c is Spout hole 6
Of the mixed air flow (mixed air flow of outside air and high-temperature bleed gas) heading towards the intake demister 02, the temperature of the mixed air flow flowing in the upper part tends to be diluted by the high temperature bleed gas flow jetted from the intake demister 02. There was a risk that the upper part of the intake demister 02 would fall below the specified temperature and that moisture would freeze in that area.
（問題点を解決するための手段）
本発明は前記の問題点に対処するもので、エン
ジンの吸気ダクト内に設置される吸気デミスター
凍結防止装置において、吸気デミスターの上流側
に、多数の抽気噴出孔を鉛直方向に沿つて設けた
抽気噴出管とダクト内上部を流れる気流を遮ぎる
遮風部材とを配設したことを特徴とする吸気デミ
スター凍結防止装置に係り、その目的とする処
は、高温抽気ガスの噴出量を減少させても、吸気
デミスターに向う混合気流の温度を規定温度以上
の均一温度にできて、吸気デミスターの上部に生
じていた水分の凍結を防止できる上に、エンジン
効率を向上できる改良された吸気デミスターの凍
結防止装置を供する点にある。(Means for Solving the Problems) The present invention addresses the above problems, and includes an intake demister antifreeze device installed in the intake duct of an engine, in which a large number of bleed air jets are installed upstream of the intake demister. This invention relates to an intake demister antifreeze device characterized by having an air bleed jet pipe with holes provided along the vertical direction and a wind shielding member that blocks the airflow flowing in the upper part of the duct, and its purpose is to: Even if the ejection amount of high-temperature bleed gas is reduced, the temperature of the air mixture flowing toward the intake demister can be maintained at a uniform temperature above the specified temperature, which not only prevents the moisture forming in the upper part of the intake demister from freezing, but also improves engine efficiency. An object of the present invention is to provide an improved antifreeze device for an intake demister that can improve the temperature of the air.
（実施例）
次に本発明の吸気デミスター凍結防止装置を第
１図に示す一実施例により説明すると、１が吸気
口、２が吸気デミスター、２ａが折板、３がルー
バー、４が吸気ダクト、５ａ，５ｂ，５ｃが鉛直
方向の抽気噴出管、６が同各抽気噴出管５ａ，５
ｂ，５ｃの抽気噴出孔、７が噴出ジエツト、８が
吸気の流れ、１０が遮風部材、１１が同遮風部材
１０に設けた開口部で、多数の抽気噴出孔６が抽
気噴出管５ａ，５ｂ，５ｃに鉛直方向に沿つて設
けられ、ダクト４内上部を流れる気流を遮ぎる遮
風部材１０がダクト４内上部に設けられ、これら
が吸気デミスター２の上流側に配設されている。(Embodiment) Next, the intake demister freezing prevention device of the present invention will be explained using an embodiment shown in FIG. 1. 1 is an intake port, 2 is an intake demister, 2a is a folded plate, 3 is a louver, and 4 is an intake duct , 5a, 5b, 5c are vertical bleed air jet pipes, and 6 are the same bleed air jet pipes 5a, 5.
b, 5c are bleed air jet holes, 7 is a jet jet, 8 is a flow of intake air, 10 is a wind shielding member, 11 is an opening provided in the wind shield member 10, and a large number of bleed air jet holes 6 are connected to the bleed air jet pipe 5a. , 5b, 5c along the vertical direction, and a wind shielding member 10 is provided in the upper part of the duct 4 to block the airflow flowing in the upper part of the duct 4, and these members are arranged on the upstream side of the intake demister 2. .
（作用）
次に前記第１図の吸気デミスター凍結防止装置
の作用を説明する。吸気口１のルーバー３を通過
した気流８ａは、上向きの流れとなり、上部が下
部よりも高速になる。この傾向は、エンジンの高
温抽気ガスが抽気噴出管５ａ〜５ｃの噴出孔６か
ら噴出されて、気流が同高温抽気ガスに混合する
と（矢印８ｂ参照）、さらに強くなる。この混合
気体の温度を上下方向で均一化するためには、上
部を流れる気流の流量を下部を流れる気流の流量
よりも減少させる必要があるが、鉛直方向の噴出
管５ａ〜５ｃの上部下流側に、水平方向の遮風部
材１０があり、これが上部を流れる気流の流量を
制限しており、吸気デミスター２に向う気流の流
量が均一化され、ひいては吸気デミスター２に向
う混合気体の温度が均一化される。(Function) Next, the function of the intake demister antifreeze device shown in FIG. 1 will be explained. The airflow 8a that has passed through the louver 3 of the intake port 1 becomes an upward flow, and the upper part is faster than the lower part. This tendency becomes even stronger when the high-temperature bleed gas from the engine is ejected from the jet holes 6 of the bleed jet pipes 5a to 5c and the airflow mixes with the high-temperature bleed gas (see arrow 8b). In order to equalize the temperature of this mixed gas in the vertical direction, it is necessary to reduce the flow rate of the airflow flowing in the upper part than the flow rate of the airflow flowing in the lower part. , there is a horizontal wind shielding member 10 which restricts the flow rate of the airflow flowing above, which equalizes the flow rate of the airflow toward the intake demister 2, which in turn equalizes the temperature of the mixed gas toward the intake demister 2. be converted into
（発明の効果）
本発明は前記のようにエンジンの吸気ダクト内
に設置される吸気デミスター凍結防止装置におい
て、吸気デミスターの上流側に、多数の抽気噴出
孔を鉛直方向に沿つて設けた抽気噴出管とダクト
内上部を流れる気流を遮ぎる遮風部材とを配設し
ていて、前記の作用が行われるので、高温抽気ガ
スの噴出量を減少させても、吸気デミスターに向
う混合気流の温度を規定温度以上の均一温度にで
きて、吸気デミスターの上部に生じていた水分の
凍結を防止できる。また高温抽気ガスの噴出量を
減少させても、上記作用を達成できるので、エン
ジン効率を向上できる効果がある。(Effects of the Invention) The present invention provides an intake demister antifreeze device installed in the intake duct of an engine as described above, in which a large number of bleed air jet holes are vertically provided on the upstream side of the intake demister. The pipe is equipped with a wind shielding member that blocks the airflow flowing through the upper part of the duct, and the above-mentioned effect is performed, so even if the amount of high-temperature bleed gas is reduced, the temperature of the mixed airflow toward the intake demister remains constant. It is possible to maintain a uniform temperature above the specified temperature and prevent the moisture that has formed in the upper part of the intake demister from freezing. Further, even if the amount of high-temperature bleed gas is reduced, the above effect can be achieved, which has the effect of improving engine efficiency.
以上本発明を実施例について説明したが、勿論
本発明はこのような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .
第１図は本発明に係る吸気デミスター凍結防止
装置の一実施例を示す斜視図、第２図は従来の吸
気デミスター凍結防止装置を示す斜視図である。
２…吸気デミスター、４…吸気ダクト、５ａ，
５ｂ，５ｃ…抽気噴出管、６…抽気噴出孔、１０
…遮風部材。
FIG. 1 is a perspective view showing an embodiment of the intake demister antifreeze device according to the present invention, and FIG. 2 is a perspective view showing a conventional intake demister antifreeze device. 2...Intake demister, 4...Intake duct, 5a,
5b, 5c...Bleed air jet pipe, 6...Bleed air jet hole, 10
...Wind shielding member.
Claims (1)
ミスター凍結防止装置において、吸気デミスター
の上流側に、多数の抽気噴出孔を鉛直方向に沿つ
て設けた抽気噴出管とダクト内上部を流れる気流
を遮ぎる遮風部材とを配設したことを特徴とする
吸気デミスター凍結防止装置。1. In an intake demister antifreeze device installed in the intake duct of an engine, a large number of bleed jet holes are provided vertically on the upstream side of the intake demister to block the air flow flowing through the bleed jet pipe and the upper part of the duct. An intake demister antifreeze device characterized by having a wind shielding member installed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59226792A JPS61106965A (en) | 1984-10-30 | 1984-10-30 | Freeze preventing device of intake air demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59226792A JPS61106965A (en) | 1984-10-30 | 1984-10-30 | Freeze preventing device of intake air demister |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61106965A JPS61106965A (en) | 1986-05-24 |
| JPS635584B2 true JPS635584B2 (en) | 1988-02-04 |
Family
ID=16850687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59226792A Granted JPS61106965A (en) | 1984-10-30 | 1984-10-30 | Freeze preventing device of intake air demister |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0355359U (en) * | 1989-10-03 | 1991-05-28 | ||
| JPH0562369U (en) * | 1992-01-30 | 1993-08-20 | エムケー精工株式会社 | Gate type car wash machine |
-
1984
- 1984-10-30 JP JP59226792A patent/JPS61106965A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0355359U (en) * | 1989-10-03 | 1991-05-28 | ||
| JPH0562369U (en) * | 1992-01-30 | 1993-08-20 | エムケー精工株式会社 | Gate type car wash machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61106965A (en) | 1986-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |