JPS5810105A - Poppet valve - Google Patents
Poppet valveInfo
- Publication number
- JPS5810105A JPS5810105A JP10818381A JP10818381A JPS5810105A JP S5810105 A JPS5810105 A JP S5810105A JP 10818381 A JP10818381 A JP 10818381A JP 10818381 A JP10818381 A JP 10818381A JP S5810105 A JPS5810105 A JP S5810105A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- heat
- transmitted
- hollow part
- medium
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/12—Cooling of valves
- F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
Abstract
Description
【発明の詳細な説明】
本発明は内燃機関用排気弁率は吸気弁等のきのこ状弁の
改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in mushroom-shaped valves such as exhaust valves and intake valves for internal combustion engines.
従来の内燃機関用排気弁を＠１図により説明すると、（
１）がシリンダライナ、（２）が同シリンダライナ（１
）の上４ｓＫ固定したシリンダヘッド、（３）が同シリ
ンダヘッド４２）内に設けた排気通路、（４）が同シリ
ンダヘツｙ（２１の各所に設けた中空部で、同各中空部
（４）はシリンダヘラｙ （２）＊を貫通した冷却流体
人口（５）及び冷却流体出口（６）を介して外部と通じ
ている。また（７）が上記シリンダヘラ）” （２）ｗ
ｃ固定したドーナツ形の弁座、（７ａ）が上記排気通路
（３）と捻ぼ同径の弁座（７）の弁孔、（７ｂ）が同弁
座（７）内に設けた中空部で、同中空部（７ｂ）は弁座
（７）及びシリンダ（２１壁を貫通した通路（８）を介
して上記中空部（４）と通じている。また（９）が弁傘
（９ａ）と弁棒（９ｂ）と弁頭（９ｃ）とよりなる弁、
（１（Ｉが弁棒（９ｂ）を上記弁孔（７ａ）の中心軸線
と一致させるように支持する弁案内、ａＤが弁棒（９ｂ
）Ｋ固定したバネ受け、α２が上記弁案内Ｑｌに一体の
ノミネ受け、 （１３が上記バネ受けａａａｚ関に弁装
置した弁）２ネで、上記弁傘（９ａ）が開弁バネ０３の
バネ力により上記弁座（７）ｋ圧着されるようになって
いる。また（１４が上記弁頭（９ｃ）の上−に接してい
る揺腕、ＱｃＪが同揺腕Ｉの他端に連結した勘弁装置で
、例えばシリンダライナ（２）内のガスを排気する場合
は、動弁装置ＱＳにより揺腕ａ４を下向＃に動かし、弁
（９）を弁／ξｒａｓに抗し押下げ、弁傘（９ａ）と弁
座（７）との関ＫＨ間を形成して、ガスを排気通路（３
）へ流出させる。また動弁装置１０！９に：より揺腕（
＋４１を上向ぎに動かし、弁（９）を弁バネ０３により
上昇させ、弁傘（９ａ）を弁座（７）へ圧着させて、排
気通路（３）を閉ざす。To explain the conventional exhaust valve for internal combustion engine using diagram @1, (
1) is the cylinder liner, (2) is the same cylinder liner (1)
), (3) is the exhaust passage provided in the cylinder head (42), (4) is the hollow part provided in various places in the cylinder head (21), communicates with the outside via the cooling fluid outlet (5) and the cooling fluid outlet (6) that pass through the cylinder spatula y (2)*.In addition, (7) is the above-mentioned cylinder spatula)" (2)w
c Fixed donut-shaped valve seat, (7a) is the valve hole of the valve seat (7) with the same diameter as the exhaust passage (3), and (7b) is the hollow part provided in the valve seat (7). The hollow part (7b) communicates with the hollow part (4) through the valve seat (7) and the passage (8) penetrating the cylinder (21 wall). A valve consisting of a valve stem (9b) and a valve head (9c),
(1 (I is a valve guide that supports the valve stem (9b) so as to align with the central axis of the valve hole (7a), aD is the valve stem (9b)
)K fixed spring retainer, α2 is a nominal retainer integrated with the valve guide Ql, (13 is the valve device attached to the spring retainer aaaz) 2 springs, and the valve umbrella (9a) is the spring of the valve opening spring 03. The force causes the valve seat (7) to be crimped. In addition, (14 is a rocking arm in contact with the top of the valve head (9c), and QcJ is a relief device connected to the other end of the rocking arm I. For example, when exhausting gas in the cylinder liner (2), , the swinging arm a4 is moved downward # by the valve train QS, the valve (9) is pushed down against the valve /ξras, and a barrier KH is formed between the valve umbrella (9a) and the valve seat (7). , gas exhaust passage (3
). Also, for the valve train 10!9: the rocking arm (
+41 upward, the valve (9) is raised by the valve spring 03, the valve umbrella (9a) is pressed against the valve seat (7), and the exhaust passage (3) is closed.
一方、シリンダヘッド（２）弁座（７）弁（９）ｋは上
記高温のガスが流れるので、これらの部分を冷却する必
要がある。この冷却が、冷却流体を冷却流体入口（５：
からシリンダヘラｒ（２）内申空部（４）を経た冷却流
体出口（６）への流出と、上記中空部（４）から通路（
８）を経た弁座（７）内申空部（７ｂ）への流入及び流
出とｋより行なわれる。また弁（９）Ｋ対する冷却は、
弁傘（９ａ）が弁座（７） Ｋ圧着している場合は、熱
が弁傘（％）から弁座り７）へ伝わることと、弁棒（９
ｂ）から弁案内ａ０を経てシリンダヘッド（２）に伝わ
ることとくより、また弁傘（９ｍ）が弁座（７）から離
れている場合は、熱が弁棒（９ｂ）から弁案内ａ・を経
てシリンダヘッド（２）ｋ伝わることにより、それぞれ
行なわれるようｋなっている。なお冷却流体を弁座（７
）の中空ｆＩ（Ｔｈ）へ直接流入させる場合もある。On the other hand, since the high temperature gas flows through the cylinder head (2), valve seat (7), and valve (9)k, it is necessary to cool these parts. This cooling causes the cooling fluid to flow through the cooling fluid inlet (5:
Outflow from the cylinder spatula r (2) to the cooling fluid outlet (6) via the inner cavity (4), and from the hollow part (4) to the passage (
8) into and out of the inner cavity (7b) of the valve seat (7). Also, cooling for valve (9)K is as follows:
When the valve cap (9a) is crimped to the valve seat (7), heat is transferred from the valve cap (%) to the valve seat (7) and the valve stem (9)
In particular, if the valve head (9m) is far from the valve seat (7), heat is transmitted from the valve stem (9b) to the cylinder head (2) via the valve guide a0. and the cylinder head (2), respectively. Note that the cooling fluid is connected to the valve seat (7
) may be made to flow directly into the hollow fI(Th).
前記内燃機関用排気弁では４弁（９１の冷却効果が゛悪
く、弁傘（％）の温度が上昇して、弁（９）が早期に破
損する。そのため弁（９）を頻繁に交換しなければなら
ず、機関停止に伴う損失が大ぎいという問題があった。In the exhaust valve for an internal combustion engine, the cooling effect of the four valves (91) is poor, and the temperature of the valve head (%) rises, causing early damage to the valve (9). Therefore, the valve (9) must be replaced frequently. The problem was that there was a huge loss due to engine stoppage.
本発明は前記の問題点に対処するもので、内燃機関用排
気弁等のぎのこ駄弁において、弁の弁傘及び弁棒の内部
に弁棒の軸線に沿ってヒートパイプを埋設するとともに
弁の内部にに−）パイプの上端部及び下端部を取囲み中
空部を設けて同各中空部に熱媒体を封入したことを特徴
とするぎのこ駄弁に係り、その目的とする処は、弁を頻
繁に交換する必要がなくて、機関停止に伴う損失を著し
く減少できる。また構造簡単で、製作コストを高めない
改良されたきのこ駄弁を供する点にある。The present invention deals with the above-mentioned problems, and provides an exhaust valve for an internal combustion engine, etc., by embedding a heat pipe inside the valve umbrella and valve stem along the axis of the valve stem. This valve is characterized by having a hollow part surrounding the upper and lower ends of the pipe, and a heating medium is sealed in each hollow part. There is no need for frequent replacement, and losses due to engine stoppage can be significantly reduced. Another object of the present invention is to provide an improved kinoko daben that has a simple structure and does not increase manufacturing costs.
次に本発明のぎのこ駄弁を第２図袴示す一実施例により
説明すると、（９）が弁傘（９＆）と弁棒（９ｂ）とよ
りなる弁、（Ｉｅが弁棒（９ｂ）から弁傘（９ａ）ｋか
けての軸心位置に埋設したヒートパイプ、０ηが同ヒー
トパイプαｅの上端部を取囲むように弁棒（９ｂ）内に
設けた中空部、鵠が同ヒートパイプａｅの下端部を取囲
むように弁傘（９ａ）内に設けた中空部、α９（イ）が
上記各中空部α加υ内に封入した熱媒体である。なお下
の中空部ＱＩＫは、熱媒体として臨界点温度の高い例え
ば液体金属（リチウム、ナトリウム等）またはその塩等
の液体を中空部（至）のμ〜Ｗ程度封入して、残りの部
分を真空に１．てお（、また上の中空部（Ｉηには、上
記熱媒体よりも臨界点温度が低い例えば水等の液体を中
空部αηのＨ−Ｗ程度封入して、残りの部分を真空にし
ておく。なお熱媒体ａ９（２Ｑを中空部αη翰内ｋＶ２
〜発程度封入１−ておくのは、弁（９）の上下運動によ
り攪拌して伝熱効率を高めるためであ蚤。Next, the Ginokoda valve of the present invention will be explained with reference to an embodiment shown in FIG. A heat pipe buried in the axial center position across the valve umbrella (9a) k, 0η is a hollow part provided in the valve stem (9b) so as to surround the upper end of the heat pipe αe, and a mouse is a hollow part provided in the valve stem (9b) to surround the upper end of the heat pipe αe. A hollow part α9 (a) provided in the valve umbrella (9a) so as to surround the lower end of the valve head (9a) is a heat medium sealed in each of the hollow parts α. A liquid having a high critical point temperature, such as a liquid metal (lithium, sodium, etc.) or a salt thereof, is filled as a medium to the extent of μ to W in the hollow part, and the remaining part is evacuated. The upper hollow part (Iη) is filled with a liquid such as water, which has a lower critical point temperature than the heat medium, to the extent of H-W of the hollow part αη, and the remaining part is kept in a vacuum.Heat medium a9 (2Q is defined as kV2 inside the hollow part αη
The reason for enclosing the degree of heat generation 1- is to increase the heat transfer efficiency by stirring by the vertical movement of the valve (9).
次Ｋｍ記きのこ駄弁の作用を説明する。弁（９）の弁傘
（％）Ｓ分に伝わった熱の一部は弁座から冷却流体に逃
げるが、残りの熱は弁傘（９１）から中空部特内の熱媒
体（至）ｋ伝えられて、同熱媒体（２）が対流するとと
ｋより一また弁（９）の上下運動によって同熱媒体（至
）が攪拌されることにより、ヒートノイプａｅｋ速やか
に伝えられ、さらにヒートパイプａｅを介し中空部ａη
内の熱媒体０１に伝えられ″Ｃ１同熱媒体ａ嘩が対流す
るととｋより、゛また弁（９）の上下運動によって同熱
媒体ａｌが攪拌されることにより、中空１１ａ１周りの
弁棒（９ｂ）１１分→シリンダヘツｙ＜速やかに伝えら
れ、さらにシリンダヘッドの各所に設けた中空部内を通
る冷却流体に伝えられる。Next, I will explain the function of Kinokodaben in Km. A part of the heat transferred to the valve cap (%) S of the valve (9) escapes from the valve seat to the cooling fluid, but the remaining heat is transferred from the valve cap (91) to the heat medium (to) k in the hollow part. When the heat transfer medium (2) convects, the heat transfer medium (2) is stirred by the vertical movement of the valve (9), so that the heat pipe aek is quickly transferred, and further the heat pipe ae Through the hollow part aη
When the heat medium a is transferred to the heat medium 01 in the hollow 11a1 and convects, the heat medium a is stirred by the vertical movement of the valve (9), and the valve stem ( 9b) 11 minutes→Cylinder Head y<The heat is transmitted rapidly, and is further transmitted to the cooling fluid passing through the hollow parts provided at various locations in the cylinder head.
従って弁（９１の冷却効果が高く、弁傘（９＆）の温度
が従来のように上昇しなくて、弁（９）の破損が長期に
亘り防止される。そのため弁（９）の交換を頻繁に行な
う必要がなくて、機関停止に伴５損失を著ｌ。Therefore, the cooling effect of the valve (91) is high, and the temperature of the valve head (9 &) does not rise like in the past, and damage to the valve (9) is prevented for a long time.Therefore, the valve (9) needs to be replaced frequently. There was no need to do so, resulting in significant losses due to engine stoppage.
く減少できるものである。また弁（９）内にピートノイ
ブＱｅと中空部０ｆ）Ｑｌとを設けて中空部０ｆ）Ｑｌ
ｋ熱媒体Ｑ’ＪＧＤを封入するだけであり、構造簡単で
、製作コストを高めない効果がある。It can be reduced easily. In addition, a peat nob Qe and a hollow portion 0f)Ql are provided in the valve (9) to provide a hollow portion 0f)Ql.
Since only the heat medium Q'JGD is enclosed, the structure is simple and the production cost does not increase.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるもので、ある。Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. be.
飢１図は従来のぎのこ駄弁を示す縦断側面図、第２図は
本発明に係るきのこ駄弁の一実施例を示す縦断側面図で
ある。
（９）−−開弁、（％）−−開弁傘、（９ｂ）−ｍ−弁
棒。
ａｎａｓ −−−中空ｓ、（１９Ｗ−−４ｍ体。Figure 1 is a vertical side view showing a conventional mushroom valve, and Figure 2 is a vertical side view showing an embodiment of the mushroom valve according to the present invention. (9)--open valve, (%)--open valve umbrella, (9b)-m-valve stem. anas---Hollow s, (19W--4m body.
Claims (1)
び弁棒の内部に弁棒の軸線に沿ってヒートパイプを埋設
するとともに弁の内部にヒート／（イブの上端部及び下
端部を取囲む中空部を設けて同各中空部に熱媒体を封入
したことを特徴とするきのこ状弁。In mushroom-shaped valves such as exhaust valves for internal combustion engines, a heat pipe is embedded along the axis of the valve stem inside the valve head and valve stem, and a heat pipe is installed inside the valve to heat the upper and lower ends of the valve. A mushroom-shaped valve characterized in that a surrounding hollow part is provided and a heat medium is sealed in each hollow part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10818381A JPS5810105A (en) | 1981-07-13 | 1981-07-13 | Poppet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10818381A JPS5810105A (en) | 1981-07-13 | 1981-07-13 | Poppet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5810105A true JPS5810105A (en) | 1983-01-20 |
Family
ID=14478094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10818381A Pending JPS5810105A (en) | 1981-07-13 | 1981-07-13 | Poppet valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810105A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6084705U (en) * | 1983-11-18 | 1985-06-11 | 川崎重工業株式会社 | Internal combustion engine exhaust valve device |
| JPS6346153A (en) * | 1986-08-12 | 1988-02-27 | 株式会社 旭電機製作所 | Sight recovery device using air pressure |
| JP2009041439A (en) * | 2007-08-08 | 2009-02-26 | Toyota Motor Corp | Valve for internal combustion engine |
| KR20160093028A (en) * | 2014-02-10 | 2016-08-05 | 니탄 밸브 가부시키가이샤 | Hollow poppet valve |
| GB2598032A (en) * | 2021-06-25 | 2022-02-16 | Brayton Cycle Dev Ltd | Engine cylinder |
-
1981
- 1981-07-13 JP JP10818381A patent/JPS5810105A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6084705U (en) * | 1983-11-18 | 1985-06-11 | 川崎重工業株式会社 | Internal combustion engine exhaust valve device |
| JPH0117604Y2 (en) * | 1983-11-18 | 1989-05-23 | ||
| JPS6346153A (en) * | 1986-08-12 | 1988-02-27 | 株式会社 旭電機製作所 | Sight recovery device using air pressure |
| JPH0247224B2 (en) * | 1986-08-12 | 1990-10-18 | Asahi Electric Mfg | |
| JP2009041439A (en) * | 2007-08-08 | 2009-02-26 | Toyota Motor Corp | Valve for internal combustion engine |
| JP4690369B2 (en) * | 2007-08-08 | 2011-06-01 | トヨタ自動車株式会社 | Valve for internal combustion engine |
| KR20160093028A (en) * | 2014-02-10 | 2016-08-05 | 니탄 밸브 가부시키가이샤 | Hollow poppet valve |
| GB2598032A (en) * | 2021-06-25 | 2022-02-16 | Brayton Cycle Dev Ltd | Engine cylinder |
| GB2598032B (en) * | 2021-06-25 | 2022-08-03 | Brayton Cycle Dev Ltd | Engine cylinder |
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