JPH0111960Y2 - - Google Patents
Info
- Publication number
- JPH0111960Y2 JPH0111960Y2 JP1982114049U JP11404982U JPH0111960Y2 JP H0111960 Y2 JPH0111960 Y2 JP H0111960Y2 JP 1982114049 U JP1982114049 U JP 1982114049U JP 11404982 U JP11404982 U JP 11404982U JP H0111960 Y2 JPH0111960 Y2 JP H0111960Y2
- Authority
- JP
- Japan
- Prior art keywords
- push rod
- cylinder head
- hole
- insertion hole
- partition wall
- 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
- 230000037431 insertion Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
本考案は１シリンダ当り各２個の吸・排気弁を
もつ４サイクルデイーゼルエンジンのシリンダヘ
ツド構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylinder head structure for a four-stroke diesel engine having two intake and two exhaust valves per cylinder.
従来のこの種のシリンダヘツドの場合、吸・排
気弁を作動させるためのプツシユロツドｃの挿入
孔部ｄは第１図に示すようにシリンダヘツド本体
ｅに直接キリ穴加工して作成するかあるいは第２
図および第３図に示すように鋼製のパイプｆをシ
リンダヘツド本体ｅに通して形成されていた。 In the case of a conventional cylinder head of this type, the insertion hole d for the push rod c for operating the intake and exhaust valves is either made by directly drilling a hole in the cylinder head body e, as shown in FIG. 2
As shown in the figures and FIG. 3, a steel pipe f was formed by passing it through the cylinder head body e.
第１図に示す挿入孔部ｄの場合はプツシユロツ
ド穴用鋳物のボスｇが大きくなり勝ちで吸気ポー
トｈの通路面積が制限されるし、また第２図に示
す挿入孔部ｄの場合はパイプｆが直接吸気ポート
ｈの通路の障害になつていた。 In the case of the insertion hole d shown in Fig. 1, the boss g of the casting for the push rod hole tends to be large, which limits the passage area of the intake port h, and in the case of the insertion hole d shown in Fig. f was directly obstructing the passage of intake port h.
本考案は上記の事情に鑑みなされたものであつ
て、その目的とするところは吸気ポートの障害に
なることがなくしかも吸気ポートの通路面積を制
限することのないプツシユロツドの挿入孔部を備
えたデイーゼルエンジンのシリンダヘツド構造を
提供することにある。 The present invention was developed in view of the above circumstances, and its purpose is to provide a push rod insertion hole that does not obstruct the intake port and does not limit the passage area of the intake port. An object of the present invention is to provide a cylinder head structure for a diesel engine.
以下、本考案を第４図および第５図を参照して
説明する。 Hereinafter, the present invention will be explained with reference to FIGS. 4 and 5.
図面中１はシリンダヘツド本体であり、２，３
はシリンダヘツド本体１に形成された吸気ポー
ト、８はシリンダヘツド本体１に形成された排気
ポートである。吸気ポート２，３間には相互干渉
を避けるため隔壁４が形成してあり、隔壁４の一
部は切欠されていてこの切欠部分５にプツシユロ
ツド穴用パイプ６が位置していてプツシユロツド
の挿入孔部Ａを形成している。図面中７はキリ穴
加工による挿入孔部Ａである。プツシユロツド穴
用パイプ６の両端はシリンダヘツド本体１内の潤
滑油が吸気ポート４内に洩れないように接着剤あ
るいはカシメ等により確実にシールされている。 In the drawing, 1 is the cylinder head body, 2, 3
8 is an intake port formed in the cylinder head body 1, and 8 is an exhaust port formed in the cylinder head body 1. A partition wall 4 is formed between the intake ports 2 and 3 to avoid mutual interference, and a part of the partition wall 4 is cut out, and a push rod hole pipe 6 is located in this cutout portion 5, and the push rod hole is inserted into the push rod insertion hole. It forms part A. 7 in the drawing is an insertion hole A formed by drilling a hole. Both ends of the push rod hole pipe 6 are securely sealed with adhesive or caulking to prevent lubricating oil in the cylinder head body 1 from leaking into the intake port 4.
本考案は以上詳述したようになり、シリンダヘ
ツド本体１の互に独立した吸気ポート２，３間の
隔壁４に切欠部分５を設け、この切欠部分５に隔
壁４の延長線にほぼ外径が接するようプツシユロ
ツド穴用パイプ６を設けてプツシユロツドの挿入
孔部Ａにしたことを特徴とするデイーゼルエンジ
ンのシリンダヘツド構造である。 The present invention has been described in detail above, and a notch portion 5 is provided in the partition wall 4 between the mutually independent intake ports 2 and 3 of the cylinder head body 1. This cylinder head structure for a diesel engine is characterized in that a pipe 6 for the push rod hole is provided so that the two are in contact with each other to form the insertion hole A of the push rod.
このように、プツシユロツド穴用パイプ６をプ
ツシユロツドの挿入孔部Ａになし、このプツシユ
ロツド穴用パイプ６を隔壁４の切欠部分５に隔壁
４の延長線にほぼ外径が接するよう設けたので、
吸気ポート２，３を流れる空気の流れを乱すこと
がなく、またプツシユロツド穴用パイプ６を使用
することでプツシユロツド穴回りのスペースを最
小にして空気流路を最大限にとることができる。 In this way, the push rod hole pipe 6 is formed in the insertion hole A of the push rod, and the push rod hole pipe 6 is provided in the cutout portion 5 of the partition wall 4 so that its outer diameter is almost in contact with the extension line of the partition wall 4.
The flow of air flowing through the intake ports 2 and 3 is not disturbed, and by using the push rod hole pipe 6, the space around the push rod hole can be minimized and the air flow path can be maximized.
上記のように、このプツシユロツドの挿入孔部
Ａは吸気ポート２，３の障害になることがなくし
かも吸気ポート２，３の通路面積を制限すること
がない。 As mentioned above, the insertion hole A of the push rod does not obstruct the intake ports 2 and 3 and does not limit the passage area of the intake ports 2 and 3.
第１図は従来の、プツシユロツドの挿入孔部を
キリ穴加工で形成したシリンダヘツド構造の横断
面図、第２図は従来の、プツシユロツドの挿入孔
部をパイプで形成したシリンダヘツド構造の横断
面図、第３図は同縦断面図、第４図は本考案一実
施例の横断面図、第５図は第４図−線に沿う
断面図である。
１はシリンダヘツド本体、２，３は吸気ポー
ト、４は隔壁、５は切欠部分、６はプツシユロツ
ド穴用パイプ。
Figure 1 is a cross-sectional view of a conventional cylinder head structure in which the insertion hole of the push rod is formed by drilling a hole, and Figure 2 is a cross-sectional view of a conventional cylinder head structure in which the insertion hole of the push rod is formed with a pipe. 3 is a longitudinal cross-sectional view of the same, FIG. 4 is a cross-sectional view of an embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along the line shown in FIG. 4. 1 is the cylinder head body, 2 and 3 are intake ports, 4 is a bulkhead, 5 is a notch, and 6 is a pipe for the push rod hole.
Claims (1)
ト２，３間の隔壁４に切欠部分５を設け、この切
欠部分５に隔壁４の延長線にほぼ外径が接するよ
うプツシユロツド穴用パイプ６を設けてプツシユ
ロツドの挿入孔部Ａにしたことを特徴とするデイ
ーゼルエンジンのシリンダヘツド構造。 A cutout portion 5 is provided in the partition wall 4 between the mutually independent intake ports 2 and 3 of the cylinder head body 1, and a pushrod hole pipe 6 is provided in the cutout portion 5 so that its outer diameter is substantially in contact with the extension line of the partition wall 4. A cylinder head structure for a diesel engine characterized by having an insertion hole A for a push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11404982U JPS5919949U (en) | 1982-07-29 | 1982-07-29 | Diesel engine cylinder head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11404982U JPS5919949U (en) | 1982-07-29 | 1982-07-29 | Diesel engine cylinder head structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5919949U JPS5919949U (en) | 1984-02-07 |
| JPH0111960Y2 true JPH0111960Y2 (en) | 1989-04-07 |
Family
ID=30263783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11404982U Granted JPS5919949U (en) | 1982-07-29 | 1982-07-29 | Diesel engine cylinder head structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919949U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0211582U (en) * | 1988-06-30 | 1990-01-24 | ||
| JPH02146135A (en) * | 1988-11-28 | 1990-06-05 | Teac Corp | Tape reproducing device |
-
1982
- 1982-07-29 JP JP11404982U patent/JPS5919949U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5919949U (en) | 1984-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5865562U (en) | Dual manifold oxygen sensor mounting structure | |
| JPH0111960Y2 (en) | ||
| JPS6323369B2 (en) | ||
| JPS6271321U (en) | ||
| JPS58134621U (en) | internal combustion engine silencer | |
| JPS5837959U (en) | Internal combustion engine intake manifold | |
| JPH0134680Y2 (en) | ||
| JPH0341109U (en) | ||
| JPS59194521U (en) | Internal combustion engine exhaust system | |
| JPS584717U (en) | Silencer for internal combustion engines | |
| JPS60139034U (en) | Internal combustion engine exhaust system | |
| JPS60183225U (en) | Forced air-cooled overhead valve engine skid section cooling system | |
| JPS5865469U (en) | Rectifier type reed valve | |
| JPS5894852U (en) | Engine cylinder block structure | |
| JPS5887912U (en) | Internal combustion engine blow-by hose | |
| JPS58151350U (en) | Internal combustion engine intake piping | |
| JPS6077719U (en) | 2-cycle engine muffler structure | |
| JPS58146822U (en) | Scavenging device for 2-stroke engine | |
| JPS6047810U (en) | internal combustion engine | |
| JPS6019707U (en) | Separate lubrication system for 2-stroke engines | |
| JPS6174619U (en) | ||
| JPS63156420U (en) | ||
| JPS608413U (en) | Air feed pipe installation device for exhaust purification in internal combustion engines | |
| JPS5932119U (en) | Exhaust silencer for internal combustion engines | |
| JPS6284607U (en) |