JPS60219436A - Engine block - Google Patents

Engine block

Info

Publication number
JPS60219436A
JPS60219436A JP7451584A JP7451584A JPS60219436A JP S60219436 A JPS60219436 A JP S60219436A JP 7451584 A JP7451584 A JP 7451584A JP 7451584 A JP7451584 A JP 7451584A JP S60219436 A JPS60219436 A JP S60219436A
Authority
JP
Japan
Prior art keywords
housing cap
aluminum alloy
engine block
series material
iron series
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.)
Pending
Application number
JP7451584A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Karaki
満尋 唐木
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP7451584A priority Critical patent/JPS60219436A/en
Publication of JPS60219436A publication Critical patent/JPS60219436A/en
Pending 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Abstract

PURPOSE:To improve strength, by a method wherein the bearing part of a housing cap is formed by an internal chilled-iron series material. CONSTITUTION:In an engine block comprising a block body (a), a housing cap (b), and a crank shaft part (c), an internal chill substance (d), made of an iron series material, is internally chilled, and this prevents widening of a gap (f) due to an increase in a rate of thermal expansion peculiar to an aluminum alloy. A trouble on a bearing part, caused by a difference in a rate of thermal expansion between the housing cap (b) made of an aluminium alloy and the crank shaft (c) made of an iron series material, is eliminated, and this enables production of a cylinder block made of an alluminium alloy, resulting in improvement of strength.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、ブロック本体とハウ、ジングキャップとから
なるアルミニウム合金製のエンジンブロックに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an engine block made of an aluminum alloy, which includes a block body, a housing, and a ring cap.

（従来技術） エンジンの軽量化には、エンジンブロックのアルミニウ
ム合金製化が不可欠であるが、アルミニウム合金製のエ
ンジンブロックにおいては、重荷重を受けるクランクシ
ャフトを組み込んで回転させた場合、エンジン内にて生
じる熱により、エンジンブロック自身にも熱膨張が生じ
、鉄系材料で製作されているクランクシャフトとの熱膨
張率の差により、回転運動の支持部である軸受部におい
て隙間（ｅ方間のｆｆＡＱＮ張による隙間ｆ１第８図参
ｊｌｉ、）が生じ、運動の継続が困離になるという問題
がある。(Prior art) In order to reduce the weight of an engine, it is essential to make the engine block made of aluminum alloy. The heat generated by this process causes thermal expansion in the engine block itself, and due to the difference in coefficient of thermal expansion between the crankshaft and the crankshaft, which is made of iron-based materials, a gap (in the e direction) is created in the bearing part that supports rotational motion. There is a problem that a gap f1 (see Fig. 8) is created due to the tension of ffAQN, making it difficult to continue the movement.

（発明の目的） 本発明は、上記従来技術に存する問題点にνにみてなさ
れたものであり、アルミニウム合金製にしても、軸受部
に余分な隙間ができないエンジンブロックを提供するこ
とを目的とするものである。(Objective of the Invention) The present invention has been made in view of the above-mentioned problems in the prior art, and an object of the present invention is to provide an engine block that does not have an extra gap in the bearing part even if it is made of aluminum alloy. It is something to do.

（発明の構成） 上記目的を達成させるため、本発明の構成は、アルミニ
ウム合金硬のブロック本体の下部に取付けられるアルミ
ニウム合金製のハウジングキャップの軸受部を、鉄系材
料を鋳ぐるんで形成したことを特徴としている。(Structure of the Invention) In order to achieve the above object, the structure of the present invention is that the bearing part of the housing cap made of aluminum alloy, which is attached to the lower part of the block body made of hard aluminum alloy, is formed by casting an iron-based material. It is characterized by

そして、この構成とすることにより、ハウジングキャッ
プのｔｔｌｌ受部に１．−いて熱膨張率の差に基づ＜　
Ｉ’ｊ′Ｉ間の発生を防＋１１．　ｆｃものである。With this configuration, 1. − Based on the difference in thermal expansion coefficient
Prevent occurrence between I'j'I+11. It is an fc thing.

（実施例） Ｖ下、本発明の一ブ’　ｈＩＤ　１＋ｌｌを［３１に基
づいて説明する。(Example) Below, one part of the present invention, hID 1+ll, will be explained based on [31].

）Ｓ１図ないし４↓８図において、ブロック本体ａとハ
ウジングキャップ［〕、クランクシャフト剖Ｃからなる
エンジンブロック（アルミニウム合金製）におい゛ＣＸ
紀２１りｌ　２ｉいし第４図Ｖこ示す部位にりく系Ａｊ
４’　４”’ｒからなるｊＩ（“ｊぐるみ品ｄをｉ物ぐ
るみ、アルミニウム台金ｌｒ￥有の、坊１昆張率大によ
る隙間ｆの拡大を防止する。４４　ｌンｊに示す銃ぐる
み品ｄのＪし状により、ｅ方間に伸びよつとする１′ｉ
ｌｌ受面の１ｉｌｌきを防止することが「り能である。) In Figures S1 to 4↓8, the engine block (made of aluminum alloy) consisting of the block body a, the housing cap [], and the crankshaft C is shown as CX.
E 21 RI 2i I - Figure 4
4'4''' r to prevent the gap f from widening due to the large size of the aluminum base lr.44 The gun shown in lnj Due to the J-shape of the stuffed product d, 1'i stretches in the direction of e.
It is important to prevent the receiving surface from collapsing.

油ぐるみ品ｄかアルミニウム合金中に終始正しく（ＸＬ
ｈ、’４させるたＩｆ／’＋、４ｊＣ１図におけるｈ方
向の外力に対し、りおよびｌのアンダーカットを設けた
。Correctly from beginning to end in oil-filled products or aluminum alloys (XL
h, '4If/'+, 4jC1 An undercut of ri and l was provided for the external force in the h direction in the diagram.

また、スラス）　ｊｊ向の荷重ｊＫ対してはｋがアンダ
ーカットとなる。これらのアンダーカットはいずれも白
州；に鋳ぐるまれる。溶湯の収縮による鋳ぐるみ力によ
り、炉１ぐるみ品（１＋ｒｔ　／％ウジングキャップｂ
の中に固定され、各荷重を支えることが可能となる。こ
れにより、回転ｉ’ｌ町％＋の支持部である軸受部の適
切な隙間のａ−αが用１１ヒとなり、同時に軸受面の強
四が同上する。Also, for the load jK in the jj direction (slis), k becomes an undercut. All of these undercuts are cast into Hakushu. Due to the casting force caused by the contraction of the molten metal, the furnace 1-filled product (1+rt/%Using cap b
It is possible to support various loads by being fixed inside. As a result, the appropriate gap a-α of the bearing portion, which is the support portion of the rotation i'l town%+, becomes 11 times, and at the same time, the strength of the bearing surface becomes the same as above.

鋳ぐるみ品ｄの形状は−Ｊ造にて製Ｉ告できる形状（第
５図参照）であり、製作コストが低くできる。The shape of the cast product d is such that it can be manufactured using -J construction (see Fig. 5), and the manufacturing cost can be reduced.

第６図はダイカスト法による鋳ぐるみ品ｄを鋳ぐるむ工
程を示す。ｔ、０１両型間内に矩Ｊぐるみ品ｄが挿入ζ
ノし、位置決めビンＰにより位１１テ１決めされる。型
ｍの矢印Ｓで示す１１きにより、型が閉じられる。この
とき、内部に１４かれた鋳ぐるみ品ｄはｔ方向−＼自由
に動くことかり能であるので、溶湯の圧力等で移動する
場合が生じる。このｔめ穴ｑの径に交・１しピンｒの径
を犬きく設定し、浮き上りを防止している。なお、穴ｑ
は鋳ぐるみ品ｄを金型内に自動挿入するための冶具の案
内とり、−Ｕも使われる。FIG. 6 shows the process of casting the cast product d by the die-casting method. t, 01 Insert rectangular J-gurumi item d between both molds ζ
Then, the position is determined by the positioning bin P. The mold is closed by turning 11 as indicated by the arrow S of the mold m. At this time, since the cast member d placed inside cannot move freely in the t direction -\, it may move due to the pressure of the molten metal or the like. The diameter of pin r is set to be equal to or larger than the diameter of hole q, to prevent lifting. In addition, hole q
-U is also used to guide the jig for automatically inserting the cast product d into the mold.

（発明の効果） ９上述べｆＦ−如く、本発明によれは、ハウジングキャ
ップの軸受部を、鉄系１オ別を切ぐるんで形成したので
、アルミニウム合金ψツのハウジングキヤツプと鉄系材
料からなるクランクシャフトとの熱１％４Ｊ　’ｊＪｆ
率の差による軸受部での不具合がＩＱイ消されてアルミ
ニウム合金製のシリンダブミックの実＋Ｍ、が＋ＩＪ’
　ｆｉｔ呟となり、まプζ、アルミニウム合金製のみで
ｔ」、１；ｊられないｉＱＩ！Ｉ＊、剛性が得られて強
度が大幅に向上するなどのヌＪＪ果かイＨらｈる。(Effects of the Invention) 9 As described above, according to the present invention, the bearing portion of the housing cap is formed by cutting through one piece of iron-based material, so that the housing cap is made of aluminum alloy ψ and made of iron-based material. The heat with the crankshaft becomes 1% 4J 'jJf
Problems in the bearing due to the difference in rate have been eliminated by IQ, and the actual +M and +IJ' of the aluminum alloy cylinder cylinders have been eliminated.
It becomes a fit, and it is made of aluminum alloy only. I*, the result is that rigidity is obtained and strength is greatly improved.

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

第１図は本発明に保る一実施例の工／ジンブａツクの全
体１２１　、　ＯＳ　２１．＝（、は第１１ｇｌのＩｆ
　−ｉｆ　ａに沿う断面１閉、夷３図は四部の拡大平面
図、第４図はハウジングキャンプの一部切大正血１図、
第５図は銃ぐるみ品の斜視図、８３６図は鋳ぐるみ方法
を示す説明Ｉネ＋、Ｈｒ＋Δは第６図の■１部の説明＋
ｙＡＸ第８図は釣ぐるみ力１［シのｔ７）合のノλウジ
ングキーヤツブの説明間である。 ａ・・・ブロック本体　ｂ・・・ハウジングキャップｄ
・・・鋳ぐるみ品。 ％：ｉ：　１　「Ｓｌ ’ｚ、”；　４　、’　− ソ よ、−５１FIG. 1 shows the entire construction/jinbook 121, OS 21., of one embodiment of the present invention. =(, is If of the 11th gl
- If the cross section along a is 1 closed, Figure 3 is an enlarged plan view of the 4th part, Figure 4 is a partial cut of the housing camp.
Figure 5 is a perspective view of a gun-filled product, Figure 836 is an explanation of the casting method, Hr+Δ is an explanation of part 1 of Figure 6.
yAX FIG. 8 is an explanation of the λ shaking key when the fishing rod force is 1 (t7). a...Block body b...Housing cap d
... Castings. %:i: 1 "Sl 'z,";4,' - Soyo, -51

Claims (1)

【特許請求の範囲】[Claims] （１）アルミニウム合金製のブロック本体の下部に取付
けられるアルミニウム合金製のハウジングキャップの軸
受部を、鉄系材料を鋳ぐるんで形成したことを特徴とす
るエンジンブロック。(1) An engine block characterized in that the bearing portion of the aluminum alloy housing cap attached to the lower part of the aluminum alloy block body is formed by casting an iron-based material.
JP7451584A 1984-04-13 1984-04-13 Engine block Pending JPS60219436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7451584A JPS60219436A (en) 1984-04-13 1984-04-13 Engine block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7451584A JPS60219436A (en) 1984-04-13 1984-04-13 Engine block

Publications (1)

Publication Number Publication Date
JPS60219436A true JPS60219436A (en) 1985-11-02

Family

ID=13549543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7451584A Pending JPS60219436A (en) 1984-04-13 1984-04-13 Engine block

Country Status (1)

Country Link
JP (1) JPS60219436A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145108A (en) * 1984-07-17 1986-03-05 ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト Crank bearing for internal combustion engine
JPS63318310A (en) * 1987-06-17 1988-12-27 Hitachi Metals Ltd Bearing beam
DE4033853A1 (en) * 1989-10-25 1991-05-02 Fuji Heavy Ind Ltd BEARING CONSTRUCTION FOR THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
JPH0450509A (en) * 1990-06-20 1992-02-19 Isuzu Motors Ltd Rudder frame
EP1477660A1 (en) * 2003-05-14 2004-11-17 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Bearing cap arrangement for a crank shaft bearing
US7153337B2 (en) 2002-08-29 2006-12-26 Nippon Piston Ring Co., Ltd. Porous metal structure body and method for manufacturing the same
US7635514B2 (en) 2003-07-23 2009-12-22 Nhk Spring Co., Ltd. Reinforcing member, production method therefor, and engine block
WO2013094320A1 (en) * 2011-12-21 2013-06-27 日産自動車株式会社 Cast metal component for internal combustion engine, bearing cap, and manufacturing method therefor
JP2016050488A (en) * 2014-08-29 2016-04-11 マツダ株式会社 Crank shaft bearing structure of engine
JP2021504580A (en) * 2017-11-30 2021-02-15 ジーケーエヌ シンター メタルズ、エル・エル・シー Powder metal alloy composition of sintered powder metal inserts for aluminum castings

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145108A (en) * 1984-07-17 1986-03-05 ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト Crank bearing for internal combustion engine
JPS63318310A (en) * 1987-06-17 1988-12-27 Hitachi Metals Ltd Bearing beam
DE4033853A1 (en) * 1989-10-25 1991-05-02 Fuji Heavy Ind Ltd BEARING CONSTRUCTION FOR THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
JPH0450509A (en) * 1990-06-20 1992-02-19 Isuzu Motors Ltd Rudder frame
US7153337B2 (en) 2002-08-29 2006-12-26 Nippon Piston Ring Co., Ltd. Porous metal structure body and method for manufacturing the same
EP1477660A1 (en) * 2003-05-14 2004-11-17 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Bearing cap arrangement for a crank shaft bearing
US7635514B2 (en) 2003-07-23 2009-12-22 Nhk Spring Co., Ltd. Reinforcing member, production method therefor, and engine block
WO2013094320A1 (en) * 2011-12-21 2013-06-27 日産自動車株式会社 Cast metal component for internal combustion engine, bearing cap, and manufacturing method therefor
JP5626485B2 (en) * 2011-12-21 2014-11-19 日産自動車株式会社 Cast parts for internal combustion engines, bearing caps, and methods for manufacturing the same
JP2016050488A (en) * 2014-08-29 2016-04-11 マツダ株式会社 Crank shaft bearing structure of engine
JP2021504580A (en) * 2017-11-30 2021-02-15 ジーケーエヌ シンター メタルズ、エル・エル・シー Powder metal alloy composition of sintered powder metal inserts for aluminum castings
US11794240B2 (en) 2017-11-30 2023-10-24 Gkn Sinter Metals, Llc Powder metal alloy composition for sintered powder metal insert for aluminum casting

Similar Documents

Publication Publication Date Title
US5150517A (en) Method of manufacturing a piston
JPS60219436A (en) Engine block
JP2007270813A (en) Piston for internal combustion engine
US4827795A (en) Connecting rod for internal combustion engine and method of manufacture
US20190085786A1 (en) Aluminum cylinder block assemblies and methods of making the same
JPH0533721A (en) Ceramic-inserted piston and manufacture therefor
JP2007100122A (en) Iron-base preform for forming metal matrix composite and journal part structure
JPS60244455A (en) Production of piston
JP2011069372A (en) Iron-base preform for forming metal matrix composite and journal part structure
JPS59215939A (en) Piston for internal-combustion engine and its production method
JPS5891350A (en) Piston for internal-combustion engine
JPH1085924A (en) Method for casting cylinder piston for diesel engine
JPH0313610Y2 (en)
US11077489B2 (en) Core pack
JPS60182338A (en) Cylinder block for internal-combustion engine made of light metal
JPH0426930B2 (en)
US2911269A (en) Trunk piston
JPH0569980B2 (en)
JPH0648176Y2 (en) Crankshaft bearing device for internal combustion engine
JPS59215940A (en) Piston for internal-combustion engine
JPH0587670B2 (en)
JPS57124564A (en) Production of cylinder or piston for internal combustion engine
JPH09209829A (en) Piston for internal combustion engine
JPS59229034A (en) Piston for internal-combustion engine
JP2005002861A (en) Piston structure