JPH03118940A - Cylinder head and metallic mold for cylinder head - Google Patents

Cylinder head and metallic mold for cylinder head

Info

Publication number
JPH03118940A
JPH03118940A JP25724289A JP25724289A JPH03118940A JP H03118940 A JPH03118940 A JP H03118940A JP 25724289 A JP25724289 A JP 25724289A JP 25724289 A JP25724289 A JP 25724289A JP H03118940 A JPH03118940 A JP H03118940A
Authority
JP
Japan
Prior art keywords
cylinder head
gas
passage
spiral
sucking
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
JP25724289A
Other languages
Japanese (ja)
Other versions
JPH0771728B2 (en
Inventor
Yasuhiro Shimizu
靖弘 清水
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 JP1257242A priority Critical patent/JPH0771728B2/en
Priority to GB9018534A priority patent/GB2236556A/en
Priority to DE19904026986 priority patent/DE4026986A1/en
Publication of JPH03118940A publication Critical patent/JPH03118940A/en
Publication of JPH0771728B2 publication Critical patent/JPH0771728B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To smoothen sucked gas flow and to improve degree of freedom in a layout by forming a sucking gas passage communicated with a gas sucking port of a combustion chamber in a cylinder head for an engine along a spiral axis having the fixed curvature. CONSTITUTION:A head cover and a cylinder block are joined on upper face 2 and on lower face 3 respectively in the cylinder head 1 composed of Al alloy and formed with die casting and the combustion chamber 4 is arranged as recessed state at the lower face thereof. The gas sucking port 5 and gas exhaust port 6 are parallelly arranged at the roof part of this combustion chamber 4 and communicated with the gas sucking passage 12 and gas exhaust passage 13, respectively. In the cylinder head 1 for the above engine, the above gas sucking passage 12 is formed so as to make the spiral state having the fixed curvature. By this method, the gas suction is smoothened as spiral-state and also the degree of freedom in the layout of bolt hole 9, bush rod inserting hole 10, cold blast passage 15, etc., around the gas sucking passage 12 is improved. The gas sucking passage 12 can be easily formed by using a metallic mold 21 where the spiral core 23 for forming this is made freely rotatable around center axis C to a master mold 22.

Description

【発明の詳細な説明】 [発明の目的] 〈産業上の利用分野〉 本発明は、エンジンのシリンダヘッド及び該シリンダヘ
ッドを製造するための金型に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] <Industrial Application Field> The present invention relates to a cylinder head of an engine and a mold for manufacturing the cylinder head.

〈従来の技術〉 比較的低コストの量産エンジンのためのシリンダヘッド
の製造法として、金型内に溶湯を加圧注入するダイキャ
スト成形が多用される傾向にある。
<Prior Art> As a comparatively low-cost manufacturing method for cylinder heads for mass-produced engines, die-casting, in which molten metal is injected under pressure into a mold, tends to be frequently used.

一方、弁ポートへの吸気の流入を円滑化するうえには、
燃焼室への流入角度、すなわち、吸気通路の軸線と弁ポ
ートの軸線とのなす角度をできるだけ大きくとりたい。
On the other hand, in order to smooth the inflow of intake air into the valve port,
We want to make the angle of inflow into the combustion chamber, that is, the angle between the axis of the intake passage and the axis of the valve port, as large as possible.

また、吸気通路は、カムの揚程を弁に伝達するためのブ
ツシュロッドの挿通孔・ヘッド締付はボルトの挿通孔・
冷却風あるいは冷却水通路などとの干渉を避けた位置に
設ける必要がある。
In addition, the intake passage has an insertion hole for a bushing rod to transmit the lift of the cam to the valve, and a bolt insertion hole for tightening the head.
It must be installed in a location that avoids interference with cooling air or cooling water passages.

〈発明が解決しようとする課題〉 ところが、上記したダイキャスト成形によると、ダイプ
レートの型開き方向の都合から、湾曲した吸気通路を抜
き中子をもって形成することが困難であるため、吸気通
路を直線的にせざるを得ず、シリンダヘッドの寸法上の
制約などから、上記した要望を満足することができなか
った。円弧状をなす中子を用いて曲管を形成するように
した金型装置が実公昭56−26928号公報に開示さ
れているが、これによると、ダイプレートの型開き動作
と中子の抜き動作とを連動させる構造が複雑化しがちで
あり、しかも三次元的に湾曲させることは実質的に不可
能であることから、上記ブツシュロッドの挿通孔などと
吸気通路との位置関係に及ぼされる制約を低減するうえ
には不充分である。
<Problems to be Solved by the Invention> However, according to the die-casting method described above, it is difficult to form a curved intake passage with a core due to the opening direction of the die plate. The cylinder head had no choice but to be linear, and the above requirements could not be met due to dimensional restrictions on the cylinder head. A mold device that forms a curved pipe using an arc-shaped core is disclosed in Japanese Utility Model Publication No. 56-26928, which describes the opening operation of the die plate and the removal of the core. The structure that interlocks the movement tends to be complicated, and it is virtually impossible to curve it three-dimensionally. This is insufficient to reduce the

本発明は、このような不都合を解消すべくなされたもの
であり、その主な目的は、弁ポートへ流入する吸気流を
円滑化すると共にレイアウトの自由度を向上し得る吸気
通路の形成が可能なように構成されたエンジンのシリン
ダヘッド、及び前記吸気通路を形成するための比較的簡
単な構造の金型装置を提供することにある。
The present invention has been made to eliminate such inconveniences, and its main purpose is to form an intake passage that can smooth the intake flow flowing into the valve port and improve the freedom of layout. It is an object of the present invention to provide a cylinder head of an engine configured as above, and a mold device having a relatively simple structure for forming the intake passage.

[発明の構成] 〈課題を解決するための手段〉 このような目的は、本発明によれば、金型鋳造にて形成
されるエンジンのシリンダヘッドであって、燃焼室の吸
気ポートに連通ずる吸気通路の軸線が、一定曲率の螺旋
状をなすことを特徴とするエンジンのシリンダヘッド、
及びエンジンのシリンダヘッドを形成するための金型で
あって、吸気通路を形成するための中子が、一定曲率の
螺旋状をなすと共に、該螺旋の中心軸回りについて回動
自在であることを特徴とするシリンダヘッド用金型を提
供することにより達成される。
[Structure of the Invention] <Means for Solving the Problems> According to the present invention, the object is to provide an engine cylinder head formed by die casting, which communicates with an intake port of a combustion chamber. An engine cylinder head characterized in that the axis of the intake passage forms a spiral with a constant curvature.
and a mold for forming the cylinder head of an engine, in which the core for forming the intake passage has a spiral shape with a constant curvature and is rotatable about the central axis of the spiral. This is achieved by providing a cylinder head mold with the following characteristics.

く作用〉 このような構成によれば、螺旋の曲率半径とピッチとを
適宜に定めることにより、他の部分との取合いを満足さ
せ得る三次元的な湾曲形状を吸気通路に与えることがで
きる。しかも螺旋軸回りについての回転を中子に与える
ことにより、螺旋の中心軸に沿って直線的に中子を引き
抜くことができるので、金型の構成を複雑化させずに済
む。
According to this configuration, by appropriately determining the radius of curvature and pitch of the spiral, it is possible to give the intake passage a three-dimensional curved shape that satisfies the relationship with other parts. In addition, by applying rotation about the helical axis to the core, the core can be pulled out linearly along the central axis of the helix, so there is no need to complicate the structure of the mold.

〈実施例〉 以下に添附の図面を参照して本発明の好適実施例につい
て詳細に説明する。
<Embodiments> Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

第1図及び第2図は、本発明に基づき構成されたシリン
ダヘッド1を示している。このシリンダヘッド1は、ア
ルミニウム合金をダイキャスト成形してなり、その上面
2にヘッドカバー(図示せず)を固着すべく、またその
下面3をシリンダブロック(図示せず)の上端面に接合
すべく、それぞれの面2・3が平坦に形成されている。
1 and 2 show a cylinder head 1 constructed according to the invention. This cylinder head 1 is formed by die-casting an aluminum alloy, and has a head cover (not shown) fixed to its upper surface 2 and a lower surface 3 joined to the upper end surface of a cylinder block (not shown). , each of the surfaces 2 and 3 is formed flat.

シリンダヘッド1の下面には、ウェッジ型をなす燃焼室
4が凹設されている。そしてこの燃焼室4の天井部分に
は、吸気弁及び排気弁(図示せず)にて開閉される吸気
ポート5及び排気ポート6が並設されている。また、吸
気ポート5及び排気ポート6の上方には、バルブステム
ガイド7が埋め込まれている。
A wedge-shaped combustion chamber 4 is recessed in the lower surface of the cylinder head 1 . An intake port 5 and an exhaust port 6, which are opened and closed by an intake valve and an exhaust valve (not shown), are arranged in parallel on the ceiling of the combustion chamber 4. Furthermore, a valve stem guide 7 is embedded above the intake port 5 and the exhaust port 6.

第2図で見て、吸・排気両ポート5・6の右隣には1対
のヘッドボルト孔8が、そして左隣には同様に1対のヘ
ッドボルト孔9が、更にその左隣には1対のブツシュロ
ッド挿通孔10が、それぞれ開設されている。そして吸
・排気両ポート5・6に隣接する部分には、点火プラグ
(図示せず)の先端部を螺着するプラグ装着孔11が設
けられている。
As seen in Figure 2, there is a pair of head bolt holes 8 on the right side of both the intake and exhaust ports 5 and 6, a pair of head bolt holes 9 on the left side, and a pair of head bolt holes 9 on the left side. A pair of bushing rod insertion holes 10 are respectively provided. A plug mounting hole 11 into which the tip of a spark plug (not shown) is screwed is provided adjacent to both the intake and exhaust ports 5 and 6.

吸気ポート5からシリンダヘッド1の左側面に向けて、
吸気通路12が形成されている。この吸気通路12は、
外側へ行くに従ってその外径寸法を大きくされると共に
、第2図の左側に位置する1対のヘッドボルト孔9同土
間、及びその左隣にて対をなすブッシュロッド挿通孔1
o同土間を通過して外部に連通しており、その軸線が、
所定の旋回半径R及びピッチPを有する一定曲率の螺旋
状をなしている。
From the intake port 5 toward the left side of the cylinder head 1,
An intake passage 12 is formed. This intake passage 12 is
The outer diameter increases as it goes outward, and a pair of head bolt holes 9 are located on the left side of FIG.
o It passes through the same dirt floor and communicates with the outside, and its axis is
It has a spiral shape with a constant curvature and a predetermined turning radius R and pitch P.

排気ポート6から外部に連通ずる排気通路13は、吸気
通路12に概ね直交する方向に延設されている。この排
気通路13は、その軸線を直線とし、しかも外側へ行く
に従って外径寸法が大きくなるテーパ形状をなしている
An exhaust passage 13 communicating with the outside from the exhaust port 6 extends in a direction generally perpendicular to the intake passage 12. The exhaust passage 13 has a straight axis and a tapered shape in which the outer diameter increases toward the outside.

シリンダヘッド1の側壁には、冷却効率を高めるべく複
数の冷却フィン14が形成されている。
A plurality of cooling fins 14 are formed on the side wall of the cylinder head 1 to improve cooling efficiency.

そして吸気通路5とシリンダヘッド下面3との間の部分
には、冷却風が流過すべく通風路15が鋳抜きにより形
成されている。
A ventilation passage 15 is formed by casting in a portion between the intake passage 5 and the lower surface 3 of the cylinder head, through which cooling air flows.

さて、中・低速回転域における燃焼効率を向上するには
、吸気慣性を利用できるように吸気通路を長寸にし、か
つ燃焼室にてスワールを発生させるように、燃焼室への
吸気流入角度を大きくとると良い。また、吸気通路を長
寸にし、かつシリンダヘッドのコンパクト化を推進する
」二には、ブツシュロッド挿通孔同土間の部分に吸気通
路を延設すると良い。ところが、このような要望を満足
するには、吸気通路に三次元的な湾曲形状を与えねばな
らず、吸気通路部分を形成するための中子抜きが実質的
に不可能となるため、シリンダブロックの製造にダイキ
ャスト成形を採用するうえでの障害となっていた。
Now, in order to improve combustion efficiency in the medium and low speed rotation range, the intake passage should be made longer to take advantage of the intake inertia, and the intake air inflow angle into the combustion chamber should be adjusted to generate a swirl in the combustion chamber. It is better to make it bigger. In addition, to make the intake passage long and to promote compactness of the cylinder head, it is preferable to extend the intake passage to the area between the bushing rod insertion hole and the dirt floor. However, in order to satisfy these demands, it is necessary to give the intake passage a three-dimensional curved shape, which makes it virtually impossible to remove the core to form the intake passage. This was an obstacle to adopting die-cast molding for manufacturing.

そこで本発明においては、適宜な直線Cを中心とする一
定曲率の螺旋状をなすように吸気通路12を形成するこ
とにより、側面からの吸気通路12の投影形状が、吸気
ポーh 5へ向けて円滑に湾曲した形状となるようにし
く第1図)、かつ」二面から見た投影形状が、吸気ポー
ト5とシリンダヘッド側壁の開口16とが互いにオフセ
ットし、かつヘッドボルト孔つとブツシュロッド挿通孔
lOとの間の部分を通過する形状となるようにしている
(第2図)。
Therefore, in the present invention, by forming the intake passage 12 in a spiral shape with a constant curvature centered on a suitable straight line C, the projected shape of the intake passage 12 from the side is directed toward the intake port h5. (Fig. 1), and the projected shape when viewed from two sides is such that the intake port 5 and the opening 16 in the side wall of the cylinder head are offset from each other, and the head bolt hole and the bushing rod insertion hole. The shape is such that it passes through the part between it and lO (Fig. 2).

吸気通路12の形状をこのようにすることにより、シリ
ンダヘッド側壁の開口16と吸気ポート5との間を斜め
方向に連結したうえで、吸気ポー)−5へと連続する部
分の通路断面積の変化を緩やかにすることができ、しか
も吸気ポート5への流入角度を大きくすることができる
。従って、吸気充填効率の向上を企図し得る。また、吸
気通路12の下側の部分に比較的大きな断面積の通風路
15を形成することができるので、冷却性の向」二をも
企図し得る。
By configuring the shape of the intake passage 12 in this way, the opening 16 in the side wall of the cylinder head and the intake port 5 are connected diagonally, and the cross-sectional area of the passage that continues to the intake port 5 is reduced. The change can be made gentler, and the angle of inflow into the intake port 5 can be increased. Therefore, it is possible to plan to improve the intake air filling efficiency. Further, since the ventilation passage 15 having a relatively large cross-sectional area can be formed in the lower portion of the intake passage 12, it is possible to improve the cooling performance.

第3図は、」−記したシリンダヘッド1を製造するため
の金型21を部分的に示している。この金型21は、シ
リンダヘッド1の側壁部分を形成するための母型22と
、吸気通路12を形成するべくLす型22に付設された
中子23とからなり、中子23は、上記吸気通路12の
形状に対応した螺旋状をなすと共に、この螺旋の中心線
Cを軸として回動自在なように母型22に係合している
。そしてダイプレート(図示せず)を閉じた際には、ス
トッパピン24などにて中子23の回り止めを施してお
き、ダイプレートを開く際には、中子23の回動を自由
にすることにより、螺旋の中心線Cに沿って直線的にU
J型22を移動すると、螺旋軸に沿って回転しつつ中子
23が引き抜かれるようになっている。
FIG. 3 partially shows a mold 21 for manufacturing the cylinder head 1 marked with "-". This mold 21 consists of a mother mold 22 for forming the side wall portion of the cylinder head 1, and a core 23 attached to the L-shaped mold 22 for forming the intake passage 12. It has a spiral shape corresponding to the shape of the intake passage 12, and is engaged with the matrix 22 so as to be rotatable about the center line C of the spiral. When the die plate (not shown) is closed, the core 23 is prevented from rotating using a stopper pin 24, etc., and when the die plate is opened, the core 23 is allowed to rotate freely. By this, U straightly along the center line C of the spiral
When the J-shape 22 is moved, the core 23 is pulled out while rotating along the helical axis.

第4図は、金型21の別の実施例を示している。FIG. 4 shows another embodiment of the mold 21.

この中子23は、ダイプレート側に固定されたガイド部
材25にその基部26が嵌合し、この基部26の外周面
に螺旋溝27が凹設されると共に、ガイド部材25にお
ける基部受容孔28の内周に突設されたピン29が、螺
旋溝27に係合している。これによれば、ガイド部材2
5を軸線方向に移動させると、中子23に回転が与えら
れることとなり、」二記第1実施例と同様に、中子23
の引き抜きを行なうことができる。
The base 26 of the core 23 fits into a guide member 25 fixed to the die plate side, and a spiral groove 27 is formed in the outer peripheral surface of the base 26, and a base receiving hole 28 in the guide member 25 is formed. A pin 29 protruding from the inner periphery is engaged with the spiral groove 27. According to this, the guide member 2
5 in the axial direction, rotation is given to the core 23, and as in the first embodiment described in Section 2, the core 23 is rotated.
can be extracted.

[発明の効果] このように本発明によれば、三次元的に湾曲した吸気通
路を抜き中子をもって形成することが可能となる。従っ
て、ヘッドボルト孔やプッンユロッド挿通孔との干渉を
避けた位置に、吸気ポートへと円滑につながる湾曲形状
を有する吸気通路を、ダイキャスト加工をもって形成し
得ることから、エンジンの製造工程を簡略化するうえに
大きな効果がある。
[Effects of the Invention] As described above, according to the present invention, it is possible to form a three-dimensionally curved intake passage using a hollow core. Therefore, it is possible to use die-casting to form an intake passage with a curved shape that smoothly connects to the intake port in a position that avoids interference with the head bolt hole and the punch rod insertion hole, which simplifies the engine manufacturing process. It has a big effect on what you do.

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

第1図は、本発明に基づくシリンダヘッドを第2図のI
−I線に沿って切断して示す断面図であり、第2図は、
同じく第1図の■−■線に沿う断面図である。 第3図は、本発明に基づくシリンダヘッドを製造するた
めの金型の部分的な断面図であり、第4図は、金型の別
の実施例を示す部分的な断面図である。 1・・・シリンダヘッド 2・・・上面3・・・下面 
     4・・・燃焼室5・・・吸気ポート6・・・
排気ポート7・・・バルブステムガイド 8・9・・・・・・ヘッドボルト孔 10・・・ブツシュロッド挿通孔 1・・・プラグ装着孔 3・・・排気通路 5・・・通風路 1・・・金型 3・・・中子 5・・・ガイド部材 7・・・螺旋溝 9・・・ピン 12・・・吸気通路 14・・・冷却フィン 16・・・開口 22・・・母型 24・・・ストッパピン 26・・・嵌合部 28・・・受容孔 特 許 出 願 人  本田技研工業株式会社代   
理   人  弁理士 大 島 陽 −第3図 ↓ 第4図
FIG. 1 shows a cylinder head according to the invention at I of FIG.
- It is a sectional view cut along the I line, and FIG.
It is a sectional view taken along the line ■-■ in FIG. 1 as well. FIG. 3 is a partial cross-sectional view of a mold for manufacturing a cylinder head according to the present invention, and FIG. 4 is a partial cross-sectional view showing another embodiment of the mold. 1...Cylinder head 2...Top surface 3...Bottom surface
4... Combustion chamber 5... Intake port 6...
Exhaust port 7... Valve stem guide 8, 9... Head bolt hole 10... Bush rod insertion hole 1... Plug mounting hole 3... Exhaust passage 5... Ventilation passage 1...・Mold 3... Core 5... Guide member 7... Spiral groove 9... Pin 12... Intake passage 14... Cooling fin 16... Opening 22... Mother mold 24 ... Stopper pin 26 ... Fitting part 28 ... Reception hole Patent applicant: Honda Motor Co., Ltd.
Patent Attorney Yo Oshima - Figure 3↓ Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1)金型鋳造にて形成されるエンジンのシリンダヘッ
ドであって、 燃焼室の吸気ポートに連通する吸気通路の軸線が、一定
曲率の螺旋状をなすことを特徴とするエンジンのシリン
ダヘッド。
(1) An engine cylinder head formed by die casting, characterized in that the axis of an intake passage communicating with an intake port of a combustion chamber forms a spiral shape with a constant curvature.
(2)エンジンのシリンダヘッドを形成するための金型
であって、 吸気通路を形成するための中子が、一定曲率の螺旋状を
なすと共に、該螺旋の中心軸回りについて回動自在であ
ることを特徴とするシリンダヘッド用金型。
(2) A mold for forming a cylinder head of an engine, in which a core for forming an intake passage has a spiral shape with a constant curvature and is rotatable about the central axis of the spiral. A cylinder head mold characterized by:
JP1257242A 1989-10-02 1989-10-02 Cylinder head and mold for cylinder head Expired - Fee Related JPH0771728B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1257242A JPH0771728B2 (en) 1989-10-02 1989-10-02 Cylinder head and mold for cylinder head
GB9018534A GB2236556A (en) 1989-10-02 1990-08-23 I.c. engine cylinder head and die set for fabricating the head
DE19904026986 DE4026986A1 (en) 1989-10-02 1990-08-25 CYLINDER HEAD FOR COMBUSTION ENGINES AND MOLDING SET FOR THEIR PRODUCTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1257242A JPH0771728B2 (en) 1989-10-02 1989-10-02 Cylinder head and mold for cylinder head

Publications (2)

Publication Number Publication Date
JPH03118940A true JPH03118940A (en) 1991-05-21
JPH0771728B2 JPH0771728B2 (en) 1995-08-02

Family

ID=17303664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1257242A Expired - Fee Related JPH0771728B2 (en) 1989-10-02 1989-10-02 Cylinder head and mold for cylinder head

Country Status (3)

Country Link
JP (1) JPH0771728B2 (en)
DE (1) DE4026986A1 (en)
GB (1) GB2236556A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0599064A (en) * 1991-10-04 1993-04-20 Kubota Corp Cylinder head of air cooled multiple cylinder overhead-valve engine
JPH0578357U (en) * 1992-03-31 1993-10-26 曙ブレーキ工業株式会社 Cast pin device for casting
DE102011017511A1 (en) * 2011-04-26 2012-10-31 Bayerische Motoren Werke Aktiengesellschaft Manufacturing a cylinder head of an internal combustion engine, comprises casting a connecting element, for mounting a movable and/or removable component of the cylinder head, with the cylinder head, and heat treating the cylinder head
DE102009036393B4 (en) * 2008-12-05 2014-07-24 Kia Motors Corporation Form set for casting a cylinder head

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6681835B2 (en) * 2001-04-27 2004-01-27 Ishikawajima-Harima Heavy Industries Co., Ltd. Method and apparatus for manufacturing supercharger rotor
EP1350603A3 (en) * 2002-04-05 2007-10-17 Stanley Fastening Systems L.P. Fastener driving device
DE102009060997A1 (en) 2008-10-28 2010-09-02 Ksm Castings Gmbh Die casting apparatus, the use of such a device and a method for die casting
DE102014204859A1 (en) * 2014-03-17 2015-09-17 Volkswagen Aktiengesellschaft Cylinder head component and method for producing such
CN111761034A (en) * 2020-07-09 2020-10-13 安徽海立精密铸造有限公司 Cylinder cover casting process for automobile compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810566A (en) * 1981-07-09 1983-01-21 Otsuka Pharmaceut Co Ltd Indole derivative
JPS603317U (en) * 1983-06-21 1985-01-11 日本精工株式会社 air spindle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170119B (en) * 1960-11-29 1964-05-14 Linde Eismasch Ag Cylinder head and permanent core for casting cylinder heads

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810566A (en) * 1981-07-09 1983-01-21 Otsuka Pharmaceut Co Ltd Indole derivative
JPS603317U (en) * 1983-06-21 1985-01-11 日本精工株式会社 air spindle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0599064A (en) * 1991-10-04 1993-04-20 Kubota Corp Cylinder head of air cooled multiple cylinder overhead-valve engine
JPH0578357U (en) * 1992-03-31 1993-10-26 曙ブレーキ工業株式会社 Cast pin device for casting
DE102009036393B4 (en) * 2008-12-05 2014-07-24 Kia Motors Corporation Form set for casting a cylinder head
DE102011017511A1 (en) * 2011-04-26 2012-10-31 Bayerische Motoren Werke Aktiengesellschaft Manufacturing a cylinder head of an internal combustion engine, comprises casting a connecting element, for mounting a movable and/or removable component of the cylinder head, with the cylinder head, and heat treating the cylinder head

Also Published As

Publication number Publication date
DE4026986A1 (en) 1991-04-11
GB9018534D0 (en) 1990-10-10
GB2236556A (en) 1991-04-10
JPH0771728B2 (en) 1995-08-02

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