JPS62113846A - Cylinder block for water-cooled engine - Google Patents

Cylinder block for water-cooled engine

Info

Publication number
JPS62113846A
JPS62113846A JP25545085A JP25545085A JPS62113846A JP S62113846 A JPS62113846 A JP S62113846A JP 25545085 A JP25545085 A JP 25545085A JP 25545085 A JP25545085 A JP 25545085A JP S62113846 A JPS62113846 A JP S62113846A
Authority
JP
Japan
Prior art keywords
cylinder
cylinder block
water
sleeve body
cylinder sleeve
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
Application number
JP25545085A
Other languages
Japanese (ja)
Other versions
JPH0248735B2 (en
Inventor
Kenji Kimura
健二 木村
Akiya Suzuki
鈴木　韶也
Masao Kitayama
北山　正雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP25545085A priority Critical patent/JPH0248735B2/en
Publication of JPS62113846A publication Critical patent/JPS62113846A/en
Publication of JPH0248735B2 publication Critical patent/JPH0248735B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To enable a water pump to be firmly mounted, by integrally mounting a cylinder sleeve body, having strength larger than that of a cylinder block main unit, to its inside and integrally forming a water pump mounting part in said cylinder sleeve body. CONSTITUTION:This cylinder block B has a cylinder block main unit 1 formed by casting from an aluminum alloy. Said main unit 1 comprises a cylinder part 11, providing space 4 for containing a cylinder sleeve body 2 opening its upper and bottom, and a skirt part 12 connecting with the bottom part of said cylinder part. And the cylinder sleeve body 2, consisting of high wearing resistant cast iron, is integrally mounted into the containing space 4 of said main unit 1 by cast molding of internal chill or the like when the main unit 1 is cast. And a pump mounting part 15, forming a pump chamber 16, suction port 17 and a delivery port 18 of a water pump, is integrally formed in one end corner part in the lengthwise direction of the sleeve body 2, enabling the water pump to be firmly mounted.

Description

【発明の詳細な説明】 Ａ６発明の目的 （１）　　産業上の利用分野 本発明はエンジンのシリンダブロック、特にシリンダブ
ロック本体内に、それよりも機械的、熱的強度の大なシ
リンダスリーブ体を一体に装着し、そのシリンダスリー
ブ体に水冷系の水ジャケットを一体に形成した水冷式エ
ンジンのシリンダブロックに関するものである。Detailed Description of the Invention A6 Object of the Invention (1) Industrial Application Field The present invention provides a cylinder block for an engine, particularly a cylinder sleeve body having greater mechanical and thermal strength within the cylinder block body. This invention relates to a cylinder block for a water-cooled engine that is integrally mounted and has a water jacket for a water-cooled system integrally formed on the cylinder sleeve body.

（２）従来の技術 従来エンジンの軽量化を図るため、アルミ合金等の軽合
金製シリンダブロック本体に耐摩性、耐熱性の高い鋳鉄
等の鉄製シリンダスリーブを一体に装着したシリンダブ
ロックは公知であり、本田’ｆＪＭ人も、かかるエンジ
ンにおいて、シリンダスリーブにウォータジャケットを
一体に形成して剛性、冷却性の高い水冷式シリンダブロ
ックを提案している（特願昭５８−１６２５３０号）。(2) Conventional technology Conventionally, in order to reduce the weight of an engine, a cylinder block is known in which a cylinder block body made of a light alloy such as an aluminum alloy is integrally fitted with a cylinder sleeve made of iron such as cast iron having high wear resistance and heat resistance. For such an engine, Honda's FJM also proposed a water-cooled cylinder block with high rigidity and cooling performance by integrally forming a water jacket on the cylinder sleeve (Japanese Patent Application No. 162,530/1982).

（３）発明が解決しようとする問題点 ところで水冷式エンジンのシリンダブロックにおいて、
ウォータジャケットをシリンダスリーブに一体に形成し
たものでは、これを高圧下で鋳造したときのシリンダ内
周の変形を少なくし、かつ冷却性の高いものが得られる
という利点はあるものの、前記ウォータジャケットを、
シリンダブロック本体側に設けた、ウォータポンプのポ
ンプ室に連通ずる必要を生じてヴオークジャケットの水
路構造が複雑になり、しかもアルミ合金製のシリンダブ
ロック本体自体もウォータポンプを取付けのための剛性
を保有させる必要があり、その結果シリンダブロック全
体の鋳造コスト増を招くという問題がある。(3) Problems to be solved by the invention By the way, in the cylinder block of a water-cooled engine,
Although the water jacket formed integrally with the cylinder sleeve has the advantage of reducing deformation of the inner circumference of the cylinder when cast under high pressure and providing high cooling performance, ,
It becomes necessary to communicate with the pump chamber of the water pump provided on the cylinder block body side, which complicates the waterway structure of the vouk jacket.In addition, the cylinder block body itself, which is made of aluminum alloy, is not rigid enough to mount the water pump. As a result, there is a problem in that the casting cost of the entire cylinder block increases.

本発明は上記実情にかんがみてなされたもので、構造簡
単で低コストの水冷式シリンダブロックを得ることを目
的とするものである。The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a water-cooled cylinder block with a simple structure and low cost.

Ｂ０発明の構成 ｆｌＪ　　問題点を解決するための手段本発明によれば
、前記目的達成のため、シリンダブロック本体内に、該
シリンダブロック本体よりも機械的、熱的強度の大なシ
リンダスリーブ体を一体に装着し、該シリンダスリーブ
体に、そ、二に形成されるシリンダスリーブを囲繞する
ウォータジャケットおよび該ウォータジャケットに連通
ずるポンプ室を有する、ウォータポンプのポンプ取付部
を一体に形成する。B0 Structure of the Invention flJ Means for Solving Problems According to the present invention, in order to achieve the above object, a cylinder sleeve body having mechanical and thermal strength greater than that of the cylinder block body is provided in the cylinder block body. A pump mounting portion of a water pump is integrally attached to the cylinder sleeve body and has a water jacket surrounding the cylinder sleeve formed on the second side and a pump chamber communicating with the water jacket.

（２）作　用 前記構成によれば、シリンダブロック本体に一体に装着
されるシリンダスリーブ体に水冷系のウオークジャケッ
トおよびポンプ室を有するポンプ取付部がともに一体に
形成され、水冷部の水路構成が簡素化されてシリンダブ
ロック全体の鋳造コストが低減される。(2) Effect According to the above configuration, the walk jacket for the water cooling system and the pump mounting portion having the pump chamber are both integrally formed in the cylinder sleeve body that is integrally attached to the cylinder block body, and the water channel configuration of the water cooling portion is Simplification reduces the casting cost of the entire cylinder block.

（３）実施例 以下、図面により、本発明を直列四気筒水冷式エンジン
に実施した場合の実施例について説明する。(3) Examples Hereinafter, examples in which the present invention is applied to an in-line four-cylinder water-cooled engine will be described with reference to the drawings.

シリンダブロックＢは、その主体部分を構成するシリン
ダブロック本体１と、該本体１内に一体に装着されるシ
リンダスリーブ体２とより構成される。The cylinder block B is composed of a cylinder block main body 1 constituting its main portion, and a cylinder sleeve body 2 integrally mounted within the main body 1.

シリンダブロック本体１は、アルミ合金製であって、グ
イキャスト等の高圧鋳造法により鋳造成型され、シリン
ダ部１１と、その下部に連なるスカート部１ｔとよりな
る。シリンダ部１．には、シリンダ壁３で囲まれる上、
下開放のシリンダスリーブ体収容空間４が形成され、そ
こに後に詳述するシリンダスリーブ体２が一体に装着さ
れる。The cylinder block main body 1 is made of aluminum alloy, is cast by a high-pressure casting method such as Gui casting, and is composed of a cylinder part 11 and a skirt part 1t continuous to the lower part thereof. Cylinder part 1. is surrounded by the cylinder wall 3,
A cylinder sleeve body accommodating space 4 with an open bottom is formed, and a cylinder sleeve body 2, which will be described in detail later, is integrally installed therein.

その装着は、従来公知の手段、たとえばアルミ合金製の
シリンダブロック本体１をグイキャスト等で鋳造する際
にシリンダスリーブ体２を一体に鋳包み成形する。The attachment can be done by conventionally known means, for example, when the cylinder block body 1 made of aluminum alloy is cast by Gui-casting or the like, the cylinder sleeve body 2 is integrally cast-in-molded.

前記シリンダスリーブ体２は、耐摩耗性の高い鋳鉄によ
り形成されており、これには４つの中空円筒状シリンダ
スリーブ５・・・が連結壁６・・・を介して一体連接さ
れている。このシリンダスリーブ体２には、前記４つの
シリンダスリーブ５・・・を囲繞するようにウォータジ
ャケット７が形成されている。シリンダスリーブ体２の
上面は上壁８によって閉じられ、前記シリンダブロック
本体１の上壁９と協働してクローズドデツキ面１０を構
成しており、そのクローズドデツキ面１０には前記ウォ
ータジャケット７に連通ずる円弧状、三角状等の多数の
通水口１１・・・が穿設されている。また第１゜４図に
示すようにシリンダスリーブ体２の外周上部には、前記
４つのシリンダスリーブ５・・・をそれぞれ囲むように
、複数のボス部１２・・・が間隔を存して一体に形成さ
れており、これらのボス部１２・・・には、各シリンダ
スリーブ５・・・の軸ｖＡＬ　−Ｌと略平行な有底のへ
ラドポルト孔１３が穿設され、該へ・７ドボルト孔１３
は、前記クローズドデツキ面に開口される。The cylinder sleeve body 2 is made of cast iron with high wear resistance, and four hollow cylindrical cylinder sleeves 5 are integrally connected to the cylinder sleeve body 2 via connecting walls 6. A water jacket 7 is formed in this cylinder sleeve body 2 so as to surround the four cylinder sleeves 5 . The upper surface of the cylinder sleeve body 2 is closed by an upper wall 8, and forms a closed deck surface 10 in cooperation with the upper wall 9 of the cylinder block body 1. A large number of water inlets 11, such as communicating arcuate, triangular, etc., are provided. Further, as shown in Fig. 1.4, a plurality of boss portions 12 are integrally formed at intervals on the upper outer periphery of the cylinder sleeve body 2 so as to surround each of the four cylinder sleeves 5. These boss portions 12... are provided with bottomed hole 13 which is substantially parallel to the axis vAL-L of each cylinder sleeve 5... Hole 13
is opened in the closed deck surface.

エンジンの組立に際しては第２〜４図鎖線に示すように
シリンダブロックＢのクローズドデツキ面１０上に、ガ
スケットＧを介してシリンダヘッドＨが重合され、該シ
リンダヘッドＨに挿通したヘッドポルト１４を前記ヘッ
ドポルト孔１３・・・に螺着することにより、シリンダ
ヘッドＨがシリンダブロックＢ上に堅固に固着される。When assembling the engine, the cylinder head H is superimposed on the closed deck surface 10 of the cylinder block B via the gasket G, as shown by the chain lines in FIGS. By screwing into the head port holes 13, the cylinder head H is firmly fixed onto the cylinder block B.

第１．５および６図に示すように、シリンダスリーブ体
２の長手方向の一端隅部には、水冷系のウォータポンプ
Ｐのポンプ取付部１５が一体に形成される。このポンプ
取付部１５には前記ウオークポンプＰのポンプ室１６、
吸込ポート１７および吐出ボート１８が形成され、吐出
ポート１８は前記ウオークジャケット７に連通されてい
る。前記ポンプ取付部１５は、ウォータポンプＰの取付
座面１５１を除いて前記シリンダブロック本体１により
囲繞される。As shown in FIGS. 1.5 and 6, a pump mounting portion 15 for a water-cooled water pump P is integrally formed at one end corner in the longitudinal direction of the cylinder sleeve body 2. As shown in FIGS. This pump mounting portion 15 includes a pump chamber 16 of the walk pump P,
A suction port 17 and a discharge boat 18 are formed, and the discharge port 18 communicates with the walk jacket 7. The pump mounting portion 15 is surrounded by the cylinder block body 1 except for the mounting seat surface 151 of the water pump P.

前記取付座面１５．の周囲には複数のボルト孔１９・・
・が穿設されており、該取付座面１５１には、第６図鎖
線に示すように、ウォータポンプＰが取付けられ、該ポ
ンプＰの羽根が前記ポンプ室１６内に収容される。そし
て該ウォータポンプＰの吸込側が前記吸込ポート１７に
、その吐出側が前記吐出ボート１８に連通されウォータ
ポンプＰが駆動されると水冷回路の図示しないラジエタ
からの冷却水は第６図鎖線矢印に示すように吸込ポート
１７、ウォータポンプＰおよび吐出ポート１８を通って
ウォータジャケット７に圧送される。Said mounting seat surface 15. There are multiple bolt holes 19 around the...
A water pump P is mounted on the mounting seat surface 151, as shown by the chain line in FIG. 6, and the blades of the pump P are accommodated in the pump chamber 16. The suction side of the water pump P is connected to the suction port 17, and the discharge side is connected to the discharge boat 18, and when the water pump P is driven, the cooling water from the radiator (not shown) of the water cooling circuit flows as indicated by the chain line arrow in FIG. The water is pumped to the water jacket 7 through the suction port 17, water pump P and discharge port 18.

なお、図中２１は水ポンプＰのポンプ軸２０に固着され
る、該水ポンプＰの駆動用プーリ、２３は水温センサの
取付部である。In the figure, 21 is a driving pulley of the water pump P, which is fixed to the pump shaft 20 of the water pump P, and 23 is a mounting portion for a water temperature sensor.

而してポンプ取付部１５を鋳鉄よりなるシリンダスリー
ブ体２に一体に形成することにより該取付部１５にウォ
ータポンプＰを堅固に取付けることができ、かつ該ポン
プＰと、シリンダスリーブ体２に形成したウォータジャ
ケット７間の水路構成が簡単となる。By forming the pump mounting part 15 integrally with the cylinder sleeve body 2 made of cast iron, the water pump P can be securely mounted on the mounting part 15, and the pump P and the cylinder sleeve body 2 are formed integrally. The structure of water channels between the water jackets 7 becomes simple.

尚、前記実施例ではシリンダブロック本体１をアルミ合
金、シリンダスリーブ体２を鋳鉄で構成した場合を説明
したが、本発明ではシリンダスリーブ体２をシリンダブ
ロック本体１よりも機械的、熱的強度の大な材料により
構成すればよ（、それらの材料を問わない。In the above embodiment, the cylinder block body 1 is made of aluminum alloy, and the cylinder sleeve body 2 is made of cast iron. As long as it is made of large materials (the materials do not matter).

Ｃ９発明の効果 以上の実力缶例により明らかなように本発明によれば、
シリンダブロック本体内に、該シリンダブロック本体よ
りも機械的、熱的強度の大なシリンダスリーブ体を一体
に装着し、該シリンダスリーブ体に、そこに形成される
シリンダスリーブを囲繞するウォータジャケットおよび
該ウォータジャケットに連通するポンプ室を有する、ウ
ォータポンプのポンプ取付部を一体に形成したのでウォ
ータポンプを機械的、熱的強度の大なシリンダスリーブ
体に直接取付けることができ、その取付剛性を高めるこ
とができるとともにシリンダブロックの主体部をなすシ
リンダブロック本体の構造を簡素化してその鋳造コスト
を低減することができる。According to the present invention, as is clear from the examples of ability that exceed the effects of the C9 invention,
A cylinder sleeve body having greater mechanical and thermal strength than the cylinder block body is integrally installed inside the cylinder block body, and a water jacket surrounding the cylinder sleeve formed therein and a water jacket surrounding the cylinder sleeve formed therein are attached to the cylinder sleeve body. Since the pump mounting part of the water pump, which has a pump chamber communicating with the water jacket, is integrally formed, the water pump can be directly mounted on a cylinder sleeve body having high mechanical and thermal strength, thereby increasing its mounting rigidity. At the same time, it is possible to simplify the structure of the cylinder block main body, which is the main part of the cylinder block, and reduce the casting cost.

またシリンダスリーブ体にウォータジャケットおよびウ
ォータポンプの取付部をともに形成したことにより、ウ
ォータポンプとウォータジャケット間を連絡する水路構
成を簡単かつ短く形成することができ、シリンダブロッ
クの冷却能率が高められる。Furthermore, by forming both the water jacket and the water pump mounting portion on the cylinder sleeve body, the waterway structure that communicates between the water pump and the water jacket can be formed simply and short, and the cooling efficiency of the cylinder block is increased.

【図面の簡単な説明】[Brief explanation of drawings]

図面は、本発明シリンダブロックの一実施例を示すもの
で、第１図は、該シリンダブロックの平面図、第２図は
、第１図■−■線に沿うシリンダブロックの縦断面図、
第３図は、第１図ｍ−ｍ線に沿うシリンダブロックの縦
断面図、第４図は、第１図ＴＩ−ＴＶ線に沿うシリンダ
ブロックの縦断面図、第５図は、第１図Ｖ線矢視シリン
ダブロックの端面図、第６図は、第５図Ｖｌ−Ｖｌ線に
沿うシリンダブロックの部分横断面図である。 Ｐ・・・ウォータポンプ、 １・・・シリンダブロック本体、２・・・シリンダスリ
ーブ体、５・・・シリンダスリーブ、７・・・ウォータ
ジ中ゲット、１５・・・ポンプ取付部 第４図 第３図The drawings show one embodiment of the cylinder block of the present invention, and FIG. 1 is a plan view of the cylinder block, and FIG. 2 is a longitudinal sectional view of the cylinder block taken along the line ■-■ in FIG.
3 is a longitudinal sectional view of the cylinder block taken along the line m-m in FIG. 1, FIG. 4 is a longitudinal sectional view of the cylinder block taken along the TI-TV line in FIG. FIG. 6, which is an end view of the cylinder block as viewed from the arrow V, is a partial cross-sectional view of the cylinder block taken along the line Vl--Vl in FIG. P...Water pump, 1...Cylinder block body, 2...Cylinder sleeve body, 5...Cylinder sleeve, 7...Waterage middle get, 15...Pump mounting part Fig. 4, Fig. 3 figure

Claims (1)

【特許請求の範囲】[Claims] シリンダブロック本体内に、該シリンダブロック本体よ
りも機械的、熱的強度の大なシリンダスリーブ体を一体
に装着し、該シリンダスリーブ体に、そこに形成される
シリンダスリーブを囲繞するウォータジャケットおよび
該ウォータジャケットに連通するポンプ室を有する、ウ
ォータポンプのポンプ取付部を一体に形成したことを特
徴とする水冷式エンジンのシリンダブロック。A cylinder sleeve body having greater mechanical and thermal strength than the cylinder block body is integrally installed in the cylinder block body, and a water jacket surrounding the cylinder sleeve formed therein and a water jacket surrounding the cylinder sleeve formed therein are attached to the cylinder sleeve body. A cylinder block for a water-cooled engine, characterized by having a pump chamber communicating with a water jacket and integrally forming a pump mounting part of a water pump.
JP25545085A 1985-11-14 1985-11-14 SUIREISHIKIENJINNOSHIRINDABUROTSUKU Expired - Lifetime JPH0248735B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25545085A JPH0248735B2 (en) 1985-11-14 1985-11-14 SUIREISHIKIENJINNOSHIRINDABUROTSUKU

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25545085A JPH0248735B2 (en) 1985-11-14 1985-11-14 SUIREISHIKIENJINNOSHIRINDABUROTSUKU

Publications (2)

Publication Number Publication Date
JPS62113846A true JPS62113846A (en) 1987-05-25
JPH0248735B2 JPH0248735B2 (en) 1990-10-26

Family

ID=17278936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25545085A Expired - Lifetime JPH0248735B2 (en) 1985-11-14 1985-11-14 SUIREISHIKIENJINNOSHIRINDABUROTSUKU

Country Status (1)

Country Link
JP (1) JPH0248735B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261492A1 (en) * 2009-06-10 2010-12-15 Mazda Motor Corporation Engine body, cooling-water pump arrangement structure of engine and method of forming the same
AT513153B1 (en) * 2012-09-25 2014-02-15 Avl List Gmbh Internal combustion engine with a cylinder head designed in common for several cylinders

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04270839A (en) * 1991-02-26 1992-09-28 Matsushita Seiko Co Ltd Ventilation fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261492A1 (en) * 2009-06-10 2010-12-15 Mazda Motor Corporation Engine body, cooling-water pump arrangement structure of engine and method of forming the same
AT513153B1 (en) * 2012-09-25 2014-02-15 Avl List Gmbh Internal combustion engine with a cylinder head designed in common for several cylinders
AT513153A4 (en) * 2012-09-25 2014-02-15 Avl List Gmbh Internal combustion engine with a cylinder head designed in common for several cylinders

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