JP4616788B2 - Engine air supply device - Google Patents

Engine air supply device Download PDF

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JP4616788B2
JP4616788B2 JP2006119330A JP2006119330A JP4616788B2 JP 4616788 B2 JP4616788 B2 JP 4616788B2 JP 2006119330 A JP2006119330 A JP 2006119330A JP 2006119330 A JP2006119330 A JP 2006119330A JP 4616788 B2 JP4616788 B2 JP 4616788B2
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air
engine
air supply
stage
cooler
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JP2007291915A (en
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太郎 塚本
学 江成
泰三 嶋田
亮 阿部
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Mitsubishi Heavy Industries Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0468—Water separation or drainage means
    • 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

Description

本発明は、主としてディーゼルエンジンに適用され、過給機の空気出口を水冷式の空気冷却器に接続し、該空気冷却器を鉛直方向に複数段配設してなるエンジンの給気装置に関する。   The present invention is mainly applied to a diesel engine, and relates to an air supply device for an engine in which an air outlet of a supercharger is connected to a water-cooled air cooler, and the air coolers are arranged in a plurality of stages in the vertical direction.

Ｖ型ディーゼルエンジンにおいては、クランクケースのＶバンク間の上方に複数台の過給機を設置し、当該過給機間に水冷式の空気冷却器をエンジン軸方向に設置し、該過給機出口の空気を下方の空気冷却器に導入し、該空気冷却器のエレメント内を流れる冷却水によって前記空気を冷却してエンジンのシリンダに送り込むようにした給気装置をそなえたものがある。
かかる水冷式空気冷却器をそなえたエンジンにおいては、過給機からの高温空気を空気冷却器において１００〜１５０℃程度降温させるため、エレメント表面に凝縮水滴が発生し、この凝縮水が空気冷却器からのエンジン空気流とともにクランクケースのＶバンク間に形成された給気室に溜まる。該給気室に溜まった凝縮水は、クランクケースに穿孔された排出口からドレンとして外部に排出される。 In a V-type diesel engine, a plurality of superchargers are installed above a crankcase between V banks, and a water-cooled air cooler is installed between the superchargers in the axial direction of the engine. Some have an air supply device that introduces outlet air into a lower air cooler, cools the air with cooling water flowing through the elements of the air cooler, and sends the air to an engine cylinder.
In an engine equipped with such a water-cooled air cooler, condensed water droplets are generated on the element surface in order to lower the temperature of the high-temperature air from the supercharger by about 100 to 150 ° C. in the air cooler. It collects in the air supply chamber formed between V banks of a crankcase with the engine airflow from. The condensed water accumulated in the air supply chamber is discharged to the outside as a drain from a discharge port drilled in the crankcase.

尚、１台の室外機に対して複数の室内機（空気冷却器）を設けた空気冷却設備の一例として、特許文献１（特開２００３−５６９３３号公報）の技術が提供されている。   In addition, as an example of an air cooling facility in which a plurality of indoor units (air coolers) are provided for one outdoor unit, a technique disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2003-56933) is provided.

特開２００３−５６９３３号公報JP 2003-56933 A

前記のように、クランクケースのＶバンク間の上方に複数台の過給機を設置し、当該過給機間に水冷式の空気冷却器をクランクケース上面に取付けてエンジン軸方向に配置し、該過給機出口の空気を下方の空気冷却器に導入し、該空気冷却器のエレメント内を流れる冷却水によって前記空気を冷却して、シリンダに送り込むようにした給気装置をそなえたエンジンにおいては、過給機からの高温空気の冷却に伴いエレメント表面に凝縮水が発生するが、従来は、次の手段によって凝縮水を排出していた。
（１）前段エレメントで発生した凝縮水を、前段エレメントと後段エレメントとの中間部に凝縮水排出用の孔を設けて、該孔を通して外部に排出する。
（２）後段エレメントまたはその取付け部の空気シール部に設けた凝縮水排出用の孔を経由させ、Ｖバンク間に形成された給気室内に落下させる。 As described above, a plurality of superchargers are installed between the V banks of the crankcase, and a water-cooled air cooler is attached to the upper surface of the crankcase between the superchargers and arranged in the engine axial direction. In an engine equipped with an air supply device that introduces air at the outlet of the supercharger into a lower air cooler, cools the air with cooling water flowing in the elements of the air cooler, and sends the air to a cylinder However, condensate is generated on the element surface as the hot air is cooled from the supercharger. Conventionally, the condensate is discharged by the following means.
(1) Condensed water generated in the preceding element is provided with a hole for discharging condensed water in an intermediate portion between the preceding element and the succeeding element, and is discharged outside through the hole.
(2) It is dropped into the air supply chamber formed between the V banks through the condensate discharge hole provided in the air seal portion of the rear element or its mounting portion.

前記（１）の凝縮水排出手段にあっては、前段、後段各エレメントで発生した凝縮水の排出口を、前段エレメント出口あるいは後段エレメント出口に、各々少なくとも１個設けなければならず、このため空気冷却器で冷却した空気の一部が凝縮水排出口からエンジン外部に排出され、給気装置の効率が低下するという問題がある。
また（２）の凝縮水排出手段にあっては、前段エレメントで冷却した空気流の一部が後段エレメントを通らずに凝縮水排出口からＶバンク間に形成された給気室内に流入し、この場合も給気装置の効率が低下するという問題がある。 In the condensate discharge means (1), at least one condensate discharge port generated at each of the upstream and downstream elements must be provided at the upstream element outlet or the downstream element outlet. There is a problem that part of the air cooled by the air cooler is discharged from the condensed water discharge port to the outside of the engine, and the efficiency of the air supply device is lowered.
In the condensed water discharge means (2), a part of the air flow cooled by the preceding element flows from the condensed water discharge port into the air supply chamber formed between the V banks without passing through the latter element, In this case as well, there is a problem that the efficiency of the air supply device decreases.

本発明はかかる従来技術の課題に鑑み、空気冷却器のエレメント表面に発生する凝縮水のドレンを空気流の一部の漏出を伴うことなく効果的に排出可能として、空気冷却器の効率低下を防止したエンジンの給気装置を提供することを目的とする。   In view of the problems of the prior art, the present invention can effectively drain the condensed water drain generated on the element surface of the air cooler without causing a partial leakage of the air flow, thereby reducing the efficiency of the air cooler. An object of the present invention is to provide an air supply device for an engine that is prevented.

本発明はかかる目的を達成するもので、過給機の空気出口を水冷式の空気冷却器に接続し、該空気冷却器を鉛直方向に複数段配設してなるエンジンの給気装置において、前記エンジンはＶ型エンジンであり、Ｖバンク間の下部のクランクケース内に給気室が形成され、Ｖバンク間に前記空気冷却器が配設されるとともに前記過給機からの空気が前記空気冷却器を上方から下方に向かって流れて前記給気室に導かれるように構成され、前記空気冷却器は、複数段のエレメントを冷却水流が前記過給機からの空気流と直交するように且つ前記空気流に沿って複数段配設するとともに、前記エレメントで発生した凝縮水を案内するガイド部材を、後段側の前記エレメントの側面補強板の上部部位に当接するガイド部とケースへの取り付けを行う締付固定部とを有したガイドプレートにより構成し、前段側エレメントで発生した凝縮水を後段側エレメントの前記ガイドプレートの締付固定部とガイド部に沿って後段側エレメントの空気入口に案内し、後段側エレメントで発生した凝縮水とともに下降した凝縮水を前記給気室の底部に溜めてから外部へ排出するように構成したことを特徴とする（請求項１）。 The present invention achieves such an object, in an air supply device for an engine in which an air outlet of a supercharger is connected to a water-cooled air cooler, and the air cooler is arranged in a plurality of stages in the vertical direction. The engine is a V-type engine, an air supply chamber is formed in a lower crankcase between the V banks, the air cooler is disposed between the V banks, and air from the supercharger is supplied to the air The cooler is configured to flow from the upper side to the lower side and be guided to the air supply chamber, and the air cooler has a plurality of elements so that the cooling water flow is orthogonal to the air flow from the supercharger. A plurality of stages are arranged along the air flow, and a guide member that guides the condensed water generated in the element is attached to the guide part that contacts the upper part of the side reinforcing plate of the element on the rear stage side and the case Tightening The condensate generated in the front side element is guided to the air inlet of the back side element along the tightening fixing part and the guide portion of the guide plate of the back side element. Condensed water descending together with the condensed water generated in the side element is stored at the bottom of the air supply chamber and then discharged to the outside (Claim 1).

かかる発明において、好ましくは、前記ガイドプレートは、断面がＬ字状に形成され、前記締付固定部は前段側エレメントの取付けケースと後段エレメントの取付けケースとに挟持されて固定されることを特徴とする（請求項２）。 In this invention, preferably, the guide plate has an L-shaped cross section, and the fastening portion is clamped and fixed between the mounting case of the front element and the mounting case of the rear element. (Claim 2).

本発明によれば、空気冷却器の複数段のエレメントを冷却水流が前記過給機からの空気流と直交するように且つ前記空気流に沿って複数段配設するとともに、前記エレメントで発生した凝縮水を案内する断面Ｌ字状のガイド部材を、後段側の前記エレメントの側面補強板の上部部位に当接するガイド部とケースへの取り付けを行う締付固定部とを有したガイドプレートにより構成し、空気の冷却によって前段側のエレメントの表面で生成された凝縮水が、後段側エレメントの前記ガイドプレートの締付固定部とガイド部に沿って後段側エレメントの空気流入口へと垂下するので、従来技術のように、前段側のエレメントで冷却された空気流の一部が外部に排出され、あるいは後段側のエレメントで冷却されずに下方の給気室内へ導入されるのを回避できる。 According to the present invention, the plurality of elements of the air cooler are arranged in a plurality of stages along the air flow so that the cooling water flow is orthogonal to the air flow from the supercharger, and generated in the element. A guide member having an L-shaped cross section for guiding condensed water is constituted by a guide plate having a guide portion that comes into contact with the upper portion of the side reinforcing plate of the element on the rear stage side and a tightening fixing portion that is attached to the case and, the condensed water generated on the surface of the front side element of the cooling air, since the droop to the air inlet of the second-stage element along the fastening fixing portion of the guide plate and the guide portion of the second-stage element As in the prior art, a part of the air flow cooled by the element on the front stage is discharged to the outside or introduced into the lower air supply chamber without being cooled by the element on the rear stage. It can be avoided.

従って本発明によれば、空気冷却器のエレメント表面に発生する凝縮水のドレンを、前記のような空気流の一部の漏出を伴うことなく効果的に排出することができて、空気冷却器の効率低下を防止できる。   Therefore, according to the present invention, the condensate drain generated on the element surface of the air cooler can be effectively discharged without the leakage of part of the air flow as described above. It is possible to prevent a decrease in efficiency.

以下、本発明を図に示した実施例を用いて詳細に説明する。但し、この実施例に記載されている構成部品の寸法、材質、形状、その相対配置などは特に特定的な記載がない限り、この発明の範囲をそれのみに限定する趣旨ではなく、単なる説明例にすぎない。   Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this example are not intended to limit the scope of the present invention only to specific examples unless otherwise specified. Only.

図１は本発明の実施例に係るＶ型ディーゼルエンジン用空気冷却器のエンジン軸方向配置を示す構成図、図２は前記実施例における図１のＡ−Ａ線断面図である。
図１〜２において、１１はエンジンのクランクケース、１０は過給機（排気ターボ過給機）で、該過給機１０は前記クランクケース１１の上面にエンジン軸方向に沿って２台（１台でも３台以上でもよい）配設されている。８はクランクケース１１のＶバンク間の下部に形成された給気室である。 FIG. 1 is a configuration diagram showing the arrangement of an air cooler for a V-type diesel engine according to an embodiment of the present invention in the engine axial direction, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
1 and 2, reference numeral 11 denotes an engine crankcase, 10 denotes a supercharger (exhaust turbocharger), and two superchargers 10 are provided on the upper surface of the crankcase 11 along the engine axial direction (1 Or three or more). Reference numeral 8 denotes an air supply chamber formed in a lower portion between the V banks of the crankcase 11.

１ｆ及び１ｒは前段側空気冷却器及び後段側空気冷却器で、前記クランクケース１１内のＶバンク間の前記過給機１０の直下部位置に、前段側エレメント２ｆ及び，後段側エレメント２ｒを、冷却水流が前記過給機１０からの空気流と直交するように且つ前記空気流に沿って２段（３段以上でも良い）配設して構成されている。
６１は前記過給機１０の空気出口と前記前段側エレメント２ｆの空気入口とを接続する入口空気通路、１２は前記前段側エレメント２ｆの空気出口と後段側エレメント２ｒの空気入口とを接続する中間空気通路、７１は前記後段側エレメント２ｒの空気出口と前記給気室８とを接続する出口空気通路である。 1f and 1r are a front-stage side air cooler and a rear-stage side air cooler, and a front-stage side element 2f and a rear-stage side element 2r are disposed immediately below the supercharger 10 between the V banks in the crankcase 11. The cooling water flow is arranged so as to be orthogonal to the air flow from the supercharger 10 and arranged in two stages (or three or more stages) along the air flow.
61 is an inlet air passage for connecting the air outlet of the supercharger 10 and the air inlet of the front stage side element 2f, and 12 is an intermediate connecting the air outlet of the front stage side element 2f and the air inlet of the rear stage side element 2r. An air passage 71 is an outlet air passage that connects the air outlet of the rear element 2r and the air supply chamber 8.

図１において、３ｆは前段側空気冷却器１ｆの入口水室、４ｆは出口水室、３ｒは後段側空気冷却器１ｒの入口水室、４ｒは出口水室である。５は前記入口水室３ｆあるいは３ｒに開口する冷却水入口、６は前記出口水室４ｆあるいは４ｒに開口する冷却水出口である。
図１のように、この実施例では、前記前段側空気冷却器１ｆと後段側空気冷却器１ｒとは、エンジンの軸方向において、エレメント２ｆ、２ｒ内を流れる冷却水流が互いに逆方向流となるように構成されている（互いに順方向流でもよい）。 In FIG. 1, 3f is an inlet water chamber of the front air cooler 1f, 4f is an outlet water chamber, 3r is an inlet water chamber of the rear air cooler 1r, and 4r is an outlet water chamber. Reference numeral 5 denotes a cooling water inlet that opens to the inlet water chamber 3f or 3r, and 6 denotes a cooling water outlet that opens to the outlet water chamber 4f or 4r.
As shown in FIG. 1, in this embodiment, the front-stage air cooler 1f and the rear-stage air cooler 1r are such that the cooling water flows flowing in the elements 2f and 2r are in opposite directions in the axial direction of the engine. (It may be a forward flow with respect to each other.)

図２において、２０は前記前段側エレメント２ｆで生じた凝縮水を案内するガイドプレートである。該ガイドプレート２０は、前記後段側エレメント２ｒの側面補強板２ａに、高さ方向（空気流に方向）上段部位に対向して設置されている。また、該ガイドプレート２０はＬ字状に形成されて、前記後段側エレメント２ｒの側面補強板２ａに当接して上下方向に延びるガイド部２０ａと、該ガイド部２０ａの上部に連設され前段側エレメントケース２１と後段側エレメントケース２２とに挟持される締付固定部２０ｂとよりなる。
そして、前記後段側のガイドプレート２０は、図２のように、複数のボルト２３によって、これの締付固定部２０ｂと、前段側エレメントケース２１と、後述する前段側のガイドプレート２０の締付固定部２０ｂと、空気ダクト２４とを共締めにて後段側エレメントケース２２に締着する。 In FIG. 2, reference numeral 20 denotes a guide plate that guides the condensed water generated in the preceding element 2f. The guide plate 20 is installed on the side reinforcing plate 2a of the rear stage side element 2r so as to face the upper part in the height direction (direction to the air flow). Further, the guide plate 20 is formed in an L shape, and a guide portion 20a extending in the vertical direction in contact with the side reinforcing plate 2a of the rear-stage element 2r, and a front-stage side connected to the upper portion of the guide section 20a. The fastening case 20b is sandwiched between the element case 21 and the rear element case 22.
As shown in FIG. 2, the guide plate 20 on the rear stage side is tightened with a plurality of bolts 23 to fasten and fix the fastening part 20b, the front element case 21, and the guide plate 20 on the front stage, which will be described later. The fixing portion 20b and the air duct 24 are fastened together and fastened to the rear element case 22.

この実施例では、前段側エレメント２ｆについても、これの側面補強板２ａに、高さ方向（空気流に方向）上段部位に対向し且つ該側面補強板２ａに当接して、前記後段側エレメント２ｒ用と同様なガイドプレート２０を設置している。尚、前記前段側エレメント２ｆに用取り付けるガイドプレート２０を省略してもよく、また、３段以上のエレメントについては、該ガイドプレート２０を全段に設けても、２段目以降に設けてもよい。   In this embodiment, the front-side element 2f is also opposed to the side reinforcing plate 2a in the height direction (air flow direction) and is in contact with the side reinforcing plate 2a. A guide plate 20 similar to that for the case is installed. Note that the guide plate 20 attached to the front element 2f may be omitted, and for three or more elements, the guide plate 20 may be provided in all stages or in the second and subsequent stages. Good.

かかる空気冷却器をそなえたエンジンの運転時において、前記過給機１０で加圧された高温空気は図１，２の太矢印のように流れて前記前段側エレメント２ｆ及び後段側エレメント２ｒを通流する。一方、冷却水入口５から前段側空気冷却器１ｆの入口水室３ｆに入った冷却水は、図１のように、前段側エレメント２ｆの管内を前記空気流と直角方向に流れて前記高温空気と熱交換することにより、該高温空気を冷却した後、出口水室４ｆに流出し、冷却水出口６から外部に排出される。
また冷却水入口５から後段側空気冷却器１ｒの入口水室３ｒに入った冷却水は、図１のように、後段側エレメント２ｒの管内を前記空気流と直角方向に且つ前記前段側エレメント２ｆ内の水流とは逆方向に流れて、前記前段側エレメント２ｆで降温後の高温空気と熱交換することにより、該高温空気を冷却した後、出口水室４ｒに流出し、冷却水出口６から外部に排出される。 During operation of an engine equipped with such an air cooler, the high-temperature air pressurized by the supercharger 10 flows as shown by the thick arrows in FIGS. 1 and 2 and passes through the front-stage element 2f and the rear-stage element 2r. Shed. On the other hand, the cooling water that has entered the inlet water chamber 3f of the front-side air cooler 1f from the cooling water inlet 5 flows through the pipe of the front-side element 2f in a direction perpendicular to the air flow, as shown in FIG. After the high-temperature air is cooled by exchanging heat with the water, it flows out into the outlet water chamber 4f and is discharged from the cooling water outlet 6 to the outside.
Further, as shown in FIG. 1, the cooling water that has entered the inlet water chamber 3r of the rear air cooler 1r from the cooling water inlet 5 passes through the pipe of the rear element 2r in a direction perpendicular to the air flow and the front element 2f. It flows in the direction opposite to the water flow inside, and heat exchange with the high-temperature air after the temperature is lowered by the upstream element 2f, thereby cooling the high-temperature air and then flowing out into the outlet water chamber 4r and from the cooling water outlet 6 It is discharged outside.

前記空気冷却器１においては、前記高温空気を冷却して１００〜１５０℃程度降温せしめるため、各エレメント２の表面に凝縮水滴が発生する。前段側エレメント２ｆで発生した凝縮水は前記後段側エレメント２ｒ側のガイドプレート２０の締付固定部２０ｂとガイド部２０ａに沿って後段側エレメント２ｒの空気入口に到達し、後段側エレメント２ｒで発生した凝縮水とともに下降して、前記給気室８の底部に溜まる。溜まった凝縮水はドレンとともにドレン排出口９から外部に排出される。   In the air cooler 1, condensed water droplets are generated on the surface of each element 2 in order to cool the high temperature air and lower the temperature by about 100 to 150 ° C. Condensed water generated in the upstream element 2f reaches the air inlet of the downstream element 2r along the fastening portion 20b and the guide 20a of the guide plate 20 on the downstream element 2r side, and is generated in the downstream element 2r. The condensate falls and accumulates at the bottom of the air supply chamber 8. The accumulated condensed water is discharged to the outside through the drain outlet 9 together with the drain.

かかる実施例によれば、２段の空気冷却器１ｆ，１ｒの前段側エレメント２ｆ及び後段側エレメント２ｒを、冷却水流が過給機１０からの空気流と直交するように且つ前記空気流に沿って複数段（この例では２段）配設するとともに、前記エレメント２ｆ（及びエレメント２ｒ）で発生した凝縮水を案内する断面Ｌ字状のガイド部材２０を、少なくとも凝縮水発生エレメント２ｆの後段側のエレメント２ｒの両側部の側面補強板２ａに当接して設けたことにより、空気の冷却によって前段側のエレメント２ｆの表面で生成された凝縮水が、後段側のエレメント２ｒの両側部の側面補強板２に当接して設置されたガイド部材２０のガイド部２０ａに沿って、下方に、後段側エレメント２ｒの空気流入口へと垂下するので、従来技術のように、前段側エレメント２ｆで冷却された空気流の一部が外部に排出され、あるいは後段側エレメント２ｒで冷却されずに下方の給気室８内へ導入されるのを回避できる。
これによって、空気冷却器１ｆ，１ｒのエレメント２ｆ，２ｒ表面に発生する凝縮水のドレンを、前記のような空気流の一部の漏出を伴うことなく効果的に排出することができて、空気冷却器１ｆ，１ｒの効率低下を防止できる。 According to this embodiment, the front-stage element 2f and the rear-stage element 2r of the two-stage air coolers 1f and 1r are arranged so that the cooling water flow is orthogonal to the air flow from the supercharger 10 and along the air flow. A plurality of stages (two stages in this example) are arranged, and at least a rear stage side of the condensed water generating element 2f is provided with a guide member 20 having an L-shaped section for guiding the condensed water generated in the element 2f (and the element 2r). By providing contact with the side reinforcing plates 2a on both sides of the element 2r, the condensed water generated on the surface of the element 2f on the front stage by cooling the air becomes side reinforcement on both sides of the element 2r on the rear stage. Since it hangs down along the guide portion 20a of the guide member 20 installed in contact with the plate 2 to the air inlet of the rear-stage element 2r, Some of the cooling by the side elements 2f air flow is discharged to the outside, or can be avoided from being introduced into the lower part of the air supply chamber 8 without being cooled in the second-stage element 2r.
As a result, the condensate drain generated on the surfaces of the elements 2f and 2r of the air coolers 1f and 1r can be effectively discharged without causing a partial leakage of the air flow as described above. It is possible to prevent the efficiency of the coolers 1f and 1r from decreasing.

本発明によれば、空気冷却器のエレメント表面に発生する凝縮水のドレンを空気流の一部の漏出を伴うことなく効果的に排出可能として、空気冷却器の効率低下を防止したエンジンの給気装置を提供できる。   According to the present invention, the condensate drain generated on the element surface of the air cooler can be effectively discharged without causing a partial leakage of the air flow, and the supply of the engine in which the efficiency of the air cooler is prevented from being reduced. Qi device can be provided.

本発明の実施例に係るＶ型ディーゼルエンジン用空気冷却器のエンジン軸方向配置を示す構成図である。It is a block diagram which shows the engine axial direction arrangement | positioning of the air cooler for V type diesel engines which concerns on the Example of this invention. 前記実施例における図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 1 in the said Example.

符号の説明Explanation of symbols

１ｆ 前段側空気冷却器
１ｒ 後段側空気冷却器
２ｆ 前段側エレメント
２ｒ 後段側エレメント
２ａ 側面補強板
３ｆ，３ｒ 入口水室
４ｆ，４ｒ 出口水室
５ 冷却水入口
６ 冷却水出口
６１ 入口空気通路
７１ 出口空気通路
８ 給気室
９ ドレン排出口
１０ 過給機（排気ターボ過給機）
１１ クランクケース
１２ 中間空気通路
２０ ガイドプレート
２０ａ ガイド部
２０ｂ 締付固定部
２１ 前段側エレメントケース
２２ 後段側エレメントケース
２３ ボルト
２４ 空気ダクト 1f Front stage air cooler 1r Rear stage air cooler 2f Front stage element 2r Rear stage element 2a Side reinforcing plate 3f, 3r Inlet water chamber 4f, 4r Outlet water chamber 5 Cooling water inlet 6 Cooling water outlet 61 Inlet air passage 71 Outlet Air passage 8 Air supply chamber 9 Drain discharge port 10 Supercharger (exhaust turbocharger)
11 Crank Case 12 Intermediate Air Passage 20 Guide Plate 20a Guide Part 20b Fastening Fixing Part 21 Front Stage Element Case 22 Rear Stage Element Case 23 Bolt 24 Air Duct

Claims (2)

過給機の空気出口を水冷式の空気冷却器に接続し、該空気冷却器を鉛直方向に複数段配設してなるエンジンの給気装置において、
前記エンジンはＶ型エンジンであり、Ｖバンク間の下部のクランクケース内に給気室が形成され、Ｖバンク間に前記空気冷却器が配設されるとともに前記過給機からの空気が前記空気冷却器を上方から下方に向かって流れて前記給気室に導かれるように構成され、前記空気冷却器は、複数段のエレメントを冷却水流が前記過給機からの空気流と直交するように且つ前記空気流に沿って複数段配設するとともに、前段側エレメントで発生した凝縮水を案内するガイド部材を、後段側の前記エレメントの側面補強板の上部部位に当接するガイド部とケースへの取り付けを行う締付固定部とを有したガイドプレートにより構成し、前段側エレメントで発生した凝縮水を後段側エレメントの前記ガイドプレートの締付固定部とガイド部に沿って後段側エレメントの空気入口に案内し、後段側エレメントで発生した凝縮水とともに下降した凝縮水を前記給気室の底部に溜めてから外部へ排出するように構成したことを特徴とするエンジンの給気装置。 In the air supply device for an engine, wherein the air outlet of the supercharger is connected to a water-cooled air cooler, and the air cooler is arranged in a plurality of stages in the vertical direction.
The engine is a V-type engine, an air supply chamber is formed in a lower crankcase between the V banks, the air cooler is disposed between the V banks, and air from the supercharger is supplied to the air The cooler is configured to flow from the upper side to the lower side and be guided to the air supply chamber, and the air cooler has a plurality of elements so that the cooling water flow is orthogonal to the air flow from the supercharger. A plurality of stages are arranged along the air flow, and a guide member that guides the condensed water generated in the front-side element is connected to the guide portion that contacts the upper part of the side reinforcing plate of the element on the rear-stage side and the case. Consists of a guide plate having a tightening and fixing portion for mounting, and condensate generated in the front-stage side element is disposed on the rear stage side along the tightening and fixing portion and guide section of the guide plate of the rear-stage element. Guided to the air inlet of Remento air supply system for an engine, characterized in that the condensed water falling along with the condensed water generated in the second-stage element and adapted to discharge to the outside from the reservoir to the bottom of the air supply chamber . 前記ガイドプレートは、断面がＬ字状に形成され、前記締付固定部は前段側エレメントの取付けケースと後段エレメントの取付けケースとに挟持されて固定されることを特徴とする請求項１記載のエンジンの給気装置。 2. The guide plate according to claim 1, wherein the guide plate has an L-shaped cross section, and the fastening portion is clamped and fixed between a front element mounting case and a rear element mounting case . Engine air supply device.
JP2006119330A 2006-04-24 2006-04-24 Engine air supply device Expired - Fee Related JP4616788B2 (en)

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FR2886340B1 (en) * 2005-05-31 2010-11-12 Valeo Systemes Thermiques INTAKE AIR COOLER FOR A THERMAL MOTOR TURBOCOMPRESSED WITH TWO STAGES OF SUPERVISION AND AIR CIRCUIT CORRESPONDING
JP2010127143A (en) * 2008-11-26 2010-06-10 Calsonic Kansei Corp Charge air cooler
FR3001773A1 (en) * 2013-02-01 2014-08-08 Peugeot Citroen Automobiles Sa U-shaped supercharging air cooler for intake line of thermal engine in powertrain of car, has ascending branch with heat exchange capacity greater than that of descending branch, to effect greater cooling and greater formation of condensate

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Publication number Priority date Publication date Assignee Title
JPH10306723A (en) * 1997-05-02 1998-11-17 Mitsubishi Heavy Ind Ltd Air cooler
JP2002349273A (en) * 2001-05-23 2002-12-04 Hino Motors Ltd Intercooler of marine engine

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JPH0781531B2 (en) * 1987-09-14 1995-08-30 ヤンマーディーゼル株式会社 Intake device for V-row internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10306723A (en) * 1997-05-02 1998-11-17 Mitsubishi Heavy Ind Ltd Air cooler
JP2002349273A (en) * 2001-05-23 2002-12-04 Hino Motors Ltd Intercooler of marine engine

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