JPH028142B2 - - Google Patents
Info
- Publication number
- JPH028142B2 JPH028142B2 JP58000871A JP87183A JPH028142B2 JP H028142 B2 JPH028142 B2 JP H028142B2 JP 58000871 A JP58000871 A JP 58000871A JP 87183 A JP87183 A JP 87183A JP H028142 B2 JPH028142 B2 JP H028142B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- oil
- injection valve
- cylinder head
- oil leakage
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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)
- Fuel-Injection Apparatus (AREA)
Description
【発明の詳細な説明】 本発明は内燃機関のシリンダヘツドに関する。[Detailed description of the invention] The present invention relates to cylinder heads for internal combustion engines.
シリンダヘツドの噴射弁挿入孔の内周面に燃料
噴射弁を嵌合し、燃料戻り孔、冷却油出口孔及び
入口孔等を挿入孔に開口していると、噴射弁の分
解時や、噴射弁と挿入孔との間のＯリングの破損
時に燃料戻り油やノズル冷却油あるいは弁腕室の
潤滑油が挿入孔から燃焼室に浸入し、機関の始動
不良、潤滑油希釈あるいはライナーとピストン間
のスカツフイング等の事故の原因となるおそれが
あつた。 If the fuel injector is fitted into the inner peripheral surface of the injection valve insertion hole of the cylinder head, and the fuel return hole, cooling oil outlet hole, inlet hole, etc. are opened in the insertion hole, when disassembling the injector, the injection When the O-ring between the valve and the insertion hole is damaged, fuel return oil, nozzle cooling oil, or lubricating oil in the valve arm chamber may enter the combustion chamber through the insertion hole, resulting in engine starting problems, lubricant dilution, or the gap between the liner and piston. There was a risk of accidents such as scuffing.
本発明は噴射弁分解時や上記Ｏリング破損時
に、潤滑油、燃料油あるいはノズル冷却油が挿入
孔内に入つても、それらを燃焼室内に至らしめ
ず、シリンダヘツド外部へ排出できるようにし
て、始動不良、潤滑油希釈あるいはライナーとピ
ストン間のスカツフイング等の事故を未然に防止
しようとするものであり、その要旨は、燃料噴射
弁を噴射弁挿入孔の内周面に嵌合し、燃料戻り
孔、ノズル冷却液出口孔及びノズル冷却液入口孔
等を、シリンダヘツド側面からシリンダヘツド内
を通して噴射弁挿入孔に開口し、上記戻り孔、出
口孔及び入口孔より下側のシリンダヘツド部分
に、噴射弁挿入孔からシリンダヘツド内を通つて
外部に至る漏油排出孔を設け、漏油排出孔の開口
部分に対応する噴射弁挿入孔内の位置に環状の漏
油仕切りを設け、該漏油仕切りと噴射弁挿入孔内
周面との間で、漏油排出孔に連通する上端開放状
の漏油ガイド路を形成したことである。以下実施
例図面に基づいて本発明を説明する。 The present invention is designed so that even if lubricating oil, fuel oil, or nozzle cooling oil enters the insertion hole when the injection valve is disassembled or the O-ring is damaged, it is not allowed to enter the combustion chamber and can be discharged to the outside of the cylinder head. This is intended to prevent accidents such as poor starting, lubricant dilution, or scuffing between the liner and piston. A return hole, a nozzle coolant outlet hole, a nozzle coolant inlet hole, etc. are opened from the side of the cylinder head through the inside of the cylinder head and into the injection valve insertion hole, and in a portion of the cylinder head below the return hole, outlet hole, and inlet hole. An oil leakage hole extending from the injection valve insertion hole through the inside of the cylinder head to the outside is provided, and an annular oil leakage partition is provided at a position in the injection valve insertion hole corresponding to the opening of the oil leakage hole to prevent the oil leakage. An oil leakage guide path with an open upper end communicating with the oil leakage discharge hole is formed between the oil partition and the inner circumferential surface of the injection valve insertion hole. The present invention will be explained below based on the drawings.
第１〜第７図は第１実施例を示しており、第１
図において、１はシリンダヘツド、２は燃料噴射
弁挿入孔であつて、挿入孔２の上端は弁腕室３に
開口し、下端は燃焼室５に開口している。燃料噴
射弁６は燃料噴射ノズル７とノズルホルダー８等
とからなつており、挿入孔２に弁腕室３側から挿
入され、挿入孔２の内周面に第１、第２、第３
「Ｏ」リング９，１０，１１を介して嵌合してい
る。ノズル７はノズル取付ナツト１２によりスペ
ーサ１３を介してホルダー８の下端に連結されて
いる。噴射弁６内にはノズルスプリング１４、ス
プリングシート１５、スプリング押え１６、噴射
圧調節用ロツド１７等が挿入されており、ロツド
挿通孔１８の上端ねじ部分にはロツド１７と一体
の噴射圧調節ねじ１９が螺挿されている。２０は
止めナツト、２１はキヤツプである。 1 to 7 show the first embodiment.
In the figure, 1 is a cylinder head, 2 is a fuel injection valve insertion hole, and the upper end of the insertion hole 2 opens into the valve arm chamber 3, and the lower end opens into the combustion chamber 5. The fuel injection valve 6 consists of a fuel injection nozzle 7, a nozzle holder 8, etc., and is inserted into the insertion hole 2 from the valve arm chamber 3 side.
They are fitted through "O" rings 9, 10, 11. The nozzle 7 is connected to the lower end of the holder 8 by a nozzle mounting nut 12 via a spacer 13. A nozzle spring 14, a spring seat 15, a spring presser 16, an injection pressure adjustment rod 17, etc. are inserted into the injection valve 6, and an injection pressure adjustment screw integrated with the rod 17 is installed in the upper threaded portion of the rod insertion hole 18. 19 is screwed in. 20 is a locking nut, and 21 is a cap.
ノズルホルダー８の弁腕室３内部分には横向き
のめねじ孔２２が形成されており、めねじ孔２２
には噴射管継手２４が螺着され、継手２４には燃
料噴射管が接続される。継手２４のめねじ孔２２
内の先端面は液密状態でめねじ孔２２の奥端面に
圧接している。継手２４内の燃料通路２７はホル
ダー８（第２図）内の水平な燃料通路２８と、ホ
ルダー軸心と平行な燃料通路２９を介してノズル
７（第１図）の燃料通路３０に連通している。 A horizontal female threaded hole 22 is formed in the valve arm chamber 3 of the nozzle holder 8.
An injection pipe joint 24 is screwed onto the joint 24, and a fuel injection pipe is connected to the joint 24. Female threaded hole 22 of joint 24
The inner end surface is in pressure contact with the inner end surface of the female threaded hole 22 in a liquid-tight state. The fuel passage 27 in the joint 24 communicates with the fuel passage 30 of the nozzle 7 (Fig. 1) via a horizontal fuel passage 28 in the holder 8 (Fig. 2) and a fuel passage 29 parallel to the holder axis. ing.
シリンダヘツド１内には上側から順に燃料戻り
孔３１、ノズル冷却油（又はノズル冷却水）出口
孔３２及びノズル冷却油（又はノズル冷却水）入
口孔３３が形成されており、各孔３１，３２，３
３はシリンダヘツド１の側面から概ね水平にシリ
ンダヘツド１内を通過して噴射弁挿入孔２に開口
している。各孔３１，３２，３３は、それらの中
心線O1，O2，O3が第４〜第６図に示すようにホ
ルダー８の中心Ｏから一定距離Ｌを隔てるように
形成されている。また冷却油出口孔３２と冷却油
入口孔３３には第５、第６図に示すように出口管
３５及び入口管３６が挿入されており、各管３
５，３６の先端部はＯリングを介して管挿入孔３
７，３８に嵌合している。 Inside the cylinder head 1, a fuel return hole 31, a nozzle cooling oil (or nozzle cooling water) outlet hole 32, and a nozzle cooling oil (or nozzle cooling water) inlet hole 33 are formed in order from the top. ,3
3 passes through the cylinder head 1 generally horizontally from the side surface of the cylinder head 1 and opens into the injection valve insertion hole 2. The holes 31, 32, 33 are formed such that their center lines O1 , O2 , O3 are spaced a certain distance L from the center O of the holder 8, as shown in FIGS. 4 to 6. Furthermore, an outlet pipe 35 and an inlet pipe 36 are inserted into the cooling oil outlet hole 32 and the cooling oil inlet hole 33, as shown in FIGS.
The tips of 5 and 36 are inserted into the tube insertion hole 3 via an O-ring.
7 and 38 are fitted.
冷却油入口管３６（第６図）は、ホルダー８内
の水平な冷却油入口通路３９と、ホルダー軸心と
平行な第２冷却油入口通路４０を介してノズル冷
却通路４１（第１図）に連通し、さらにノズル先
端部の環状冷却通路４２に連通している。 The cooling oil inlet pipe 36 (Fig. 6) connects to the nozzle cooling passage 41 (Fig. 1) via a horizontal cooling oil inlet passage 39 in the holder 8 and a second cooling oil inlet passage 40 parallel to the holder axis. It communicates with the annular cooling passage 42 at the tip of the nozzle.
冷却油出口管３５（第５図）は、ホルダー８内
の水平な第１冷却油出口通路４３と、ホルダー軸
心と平行でかつ前記第２冷却油入口通路４０（第
６図）と180°の位相差を有する第２冷却油出口通
路４４等を介して前記環状冷却通路４２（第１
図）に連通している。 The cooling oil outlet pipe 35 (Fig. 5) is parallel to the horizontal first cooling oil outlet passage 43 in the holder 8 and the holder axis, and is 180° with respect to the second cooling oil inlet passage 40 (Fig. 6). The annular cooling passage 42 (first
(Figure).
燃料戻り孔３１（第４図）は水平な燃料戻り通
路４５を介して、ロツド１７と挿通孔１８間に連
通し、さらにノズル７（第１図）へと連通してい
る。 The fuel return hole 31 (FIG. 4) communicates between the rod 17 and the insertion hole 18 via a horizontal fuel return passage 45, and further communicates with the nozzle 7 (FIG. 1).
漏油排出孔４６（第１図）は冷却油入口孔３３
より下側のシリンダヘツド１部分に形成されてお
り、シリンダヘツド１の側面からシリンダヘツド
１内を略水平に通過して、噴射弁挿入孔２に開口
している。漏油排出孔４６が開口している挿入孔
２部分の下側には環状の漏油仕切り４８が嵌着さ
れており、漏油仕切り４８は漏油排出孔４６の上
端よりも上方へ延びると共に、挿入孔２の内周面
との間で環状の漏油ガイド路５０を形成してい
る。 The oil leakage hole 46 (Fig. 1) is the cooling oil inlet hole 33.
It is formed in the lower part of the cylinder head 1, passes through the cylinder head 1 substantially horizontally from the side surface of the cylinder head 1, and opens into the injection valve insertion hole 2. An annular oil leak partition 48 is fitted to the lower side of the insertion hole 2 portion where the oil leak drain hole 46 is open, and the oil leak partition 48 extends upward from the upper end of the oil leak drain hole 46. , and the inner circumferential surface of the insertion hole 2 to form an annular oil leakage guide path 50.
また第１図の燃料噴射弁６には、継手２４とめ
ねじ孔２２とのシール部分２６からの燃料の漏れ
を検出するために、第２図に示すように継手２４
の先端外周空間部分に漏油検出孔５１を連通して
いる。漏油検出孔５１はホルダー８内を下方へ延
び、第７図の第２漏油検出枝孔５３及びホルダー
８の外周環状隙間５３ａ（第５、第６図）を介し
て環状の漏油ガイド路５０に連通している。即ち
高圧燃料油が継手２４とめねじ孔２２とのシール
部分２６から漏れ始めると、漏油検出孔５１を通
つて漏油排出孔４６から外部に至るので、作業者
は高圧燃料漏れを検知（目視）することができ
る。 In addition, the fuel injection valve 6 shown in FIG. 1 has a joint 24 as shown in FIG.
An oil leakage detection hole 51 is communicated with the outer peripheral space at the tip. The oil leakage detection hole 51 extends downward inside the holder 8 and connects to the annular oil leakage guide via the second oil leakage detection branch hole 53 in FIG. 7 and the outer annular gap 53a of the holder 8 (FIGS. 5 and 6). It is connected to Road 50. That is, when high-pressure fuel oil begins to leak from the seal 26 between the joint 24 and the female threaded hole 22, it passes through the oil leak detection hole 51 and reaches the outside from the oil leak discharge hole 46, so that the operator can detect the high-pressure fuel leak (visually). )can do.
また漏油検出孔５１は、燃料戻り孔３１（第１
図）より上側の第１、第２「Ｏ」リング９，１０
間の嵌合部分にも、第３図に示すように水平な第
１漏油検出枝孔５２を介して連通している。なお
前記第２漏油検出枝孔５３は、第３「Ｏ」リング
１１より下側で冷却油出口孔３２より上側の嵌合
部分に備えられている。 Further, the oil leakage detection hole 51 is connected to the fuel return hole 31 (first
Figure) Upper first and second "O" rings 9, 10
The fitting portion between the two is also communicated through a horizontal first oil leakage detection branch hole 52, as shown in FIG. The second oil leakage detection branch hole 53 is provided at a fitting portion below the third "O" ring 11 and above the cooling oil outlet hole 32.
即ち上記漏油検出孔５１等を備えると、継手２
４等からの燃料油の漏れによる弁腕室３内の潤滑
油希釈を確実に防止することができ、また「Ｏ」
リング９，１０，１１等の破損による戻り燃料油
の漏れも速やかに検知することができる。 That is, if the oil leakage detection hole 51 and the like are provided, the joint 2
It is possible to reliably prevent dilution of the lubricating oil in the valve arm chamber 3 due to leakage of fuel oil from the "O"
Leakage of return fuel oil due to damage to rings 9, 10, 11, etc. can also be quickly detected.
なお第１図において、５５は冷却水ジエツト
孔、５６は冷却水ジヤケツト、５７はノズルパツ
キンである。 In FIG. 1, 55 is a cooling water jet hole, 56 is a cooling water jacket, and 57 is a nozzle packing.
第１〜第７図の構造によると、「Ｏ」リング９，
１０，１１の破損時や噴射弁取外し時に、たとえ
潤滑油、燃料油あるいはノズル冷却油が噴射弁挿
入孔２に浸入しても、確実に漏油排出孔４６から
排出され、燃焼室５内へ入ることはない。 According to the structure of FIGS. 1 to 7, "O" ring 9,
Even if lubricating oil, fuel oil, or nozzle cooling oil enters the injection valve insertion hole 2 when the injection valves 10 and 11 are damaged or the injection valve is removed, it will be surely discharged from the oil leakage hole 46 and into the combustion chamber 5. I won't go in.
第８図は第２実施例を示しており、ノズルスリ
ーブ５８を備えた湿式のシリンダー１に適用した
例である。ノズルスリーブ５８を漏油排出孔４６
の上端ぐらいまで上方へ延ばすことにより漏油仕
切り４８を形成している。また図示していない
が、第２〜第７図に示したような漏油検出孔５
１，５３等がホルダー８内に形成されている。５
９は噴射弁押えである。 FIG. 8 shows a second embodiment, which is an example applied to a wet type cylinder 1 equipped with a nozzle sleeve 58. Connect the nozzle sleeve 58 to the oil leakage hole 46
An oil leakage partition 48 is formed by extending upward to approximately the upper end of the oil leakage partition 48 . Although not shown, an oil leak detection hole 5 as shown in FIGS. 2 to 7
1, 53, etc. are formed within the holder 8. 5
9 is an injection valve holder.
なお第８図において、第１図に対応する部分に
は第１図と同じ番号を付している。 In FIG. 8, parts corresponding to those in FIG. 1 are given the same numbers as in FIG. 1.
以上説明したように本発明は、燃料噴射弁６を
噴射弁挿入孔２の内周面に嵌合し、燃料戻り孔３
１、ノズル冷却液出口孔、例えばノズル冷却油出
口孔３２及びノズル冷却液入口孔、例えばノズル
冷却油入口孔３３等を、シリンダヘツド１の側面
からシリンダヘツド１内を通して噴射弁挿入孔２
に開口し、上記戻り孔３１、出口孔３２及び入口
孔３３より下側のシリンダヘツド１部分に、噴射
弁挿入孔２からシリンダヘツド１内を通つて外部
に至る漏油排出孔４６を設けているので、例えば
「Ｏ」リング９，１０，１１等の故障で潤滑油、
燃料油あるいはノズル冷却油が噴射弁挿入孔２内
に浸入しても、漏油排出孔４６から外部へ排出す
ることができ、燃焼室５へ浸入することはない。
従つて冷却油等が燃焼室５に入ることによる始動
不良、潤滑油希釈あるいはライナーとピストンの
スカツフイング等の事故を未然に防ぐことができ
る。 As explained above, in the present invention, the fuel injection valve 6 is fitted into the inner peripheral surface of the injection valve insertion hole 2, and the fuel return hole 3 is fitted into the fuel injection valve 6.
1. Pass the nozzle coolant outlet hole, for example, the nozzle coolant outlet hole 32, and the nozzle coolant inlet hole, for example, the nozzle coolant inlet hole 33, etc. into the cylinder head 1 from the side of the cylinder head 1 through the injection valve insertion hole 2.
An oil leakage hole 46 is provided in a portion of the cylinder head 1 below the return hole 31, outlet hole 32, and inlet hole 33, and extends from the injection valve insertion hole 2 through the inside of the cylinder head 1 to the outside. For example, if the "O" rings 9, 10, 11 etc. fail, the lubricating oil,
Even if fuel oil or nozzle cooling oil enters into the injection valve insertion hole 2, it can be discharged to the outside from the oil leakage discharge hole 46 and will not enter the combustion chamber 5.
Therefore, accidents such as poor starting, dilution of the lubricating oil, scuffing of the liner and piston, etc. due to cooling oil etc. entering the combustion chamber 5 can be prevented.
しかも漏油排出孔４６の開口部分に対応する噴
射弁挿入孔内の位置に環状の漏油仕切り４８を設
け、該漏油仕切り４８と噴射弁挿入孔内周面との
間で、漏油排出孔４６に連通する上端開放状の漏
油ガイド路５０を形成しているので、修理点検等
で燃料噴射弁６を抜いた時に、冷却油出、入口孔
３２，３３等から挿入孔内周面を伝わつて漏れる
漏油を、漏油ガイド路５０により確実に漏油排出
孔４６に導くことができ、燃焼室５内への漏油の
侵入を確実に防止できる。 Moreover, an annular oil leak partition 48 is provided at a position in the injection valve insertion hole corresponding to the opening portion of the oil leak discharge hole 46, and the oil leak is discharged between the oil leak partition 48 and the inner peripheral surface of the injection valve insertion hole. Since the oil leakage guide path 50 is formed with an open top end and communicates with the hole 46, when the fuel injection valve 6 is removed for repair or inspection, cooling oil comes out from the inlet holes 32, 33, etc. on the inner peripheral surface of the insertion hole. The oil leaking through the combustion chamber 5 can be reliably guided to the oil leakage discharge hole 46 by the oil leak guide path 50, and the oil leakage can be reliably prevented from entering the combustion chamber 5.
また燃焼室５から噴射弁挿入孔２内への燃焼ガ
スの漏れを、漏油排出孔４６を利用して検出する
こともできる。即ノズルパツキン５７（第１図）
の損傷等を容易に察知することができる。 Further, leakage of combustion gas from the combustion chamber 5 into the injection valve insertion hole 2 can also be detected using the oil leakage discharge hole 46. Immediate nozzle packing 57 (Fig. 1)
damage etc. can be easily detected.
なお従来の大形内燃機関においては、弁腕室内
における高圧燃料油の漏れによつて生じる潤滑油
希釈の対応策として、弁腕別注油システム、即ち
機関のシステム潤滑油注油システムとは別の注油
システムを備えており、そのために特別に弁腕注
油タンク、弁腕注油ポンプ及び弁腕注油用配管を
必要とし、コストアツプの原因になつていた。 In conventional large internal combustion engines, as a countermeasure against lubricating oil dilution caused by leakage of high-pressure fuel oil in the valve arm chamber, a separate valve arm lubrication system, that is, a separate lubrication system from the engine's system lubricating oil lubrication system, is used. This system requires a special valve arm lubrication tank, valve arm lubrication pump, and valve arm lubrication piping, which increases costs.
これに対して第１〜第７図に示すように、燃料
噴射弁６の燃料油が弁腕室３内へ漏れるおそれの
ある箇所、例えば継手２４とめねじ孔２２の嵌合
箇所に連通する漏油検出孔５０を形成すると、燃
料油の漏れを未然に検知できるので、弁腕室３内
の潤滑油希釈により発生する機関焼付き、爆発、
ライナーとピストンのスカツフイング等の事故を
確実に未然に防ぐことができる。それにより機関
の品質も向上し、また中小形機関並みに機関全体
を安価な１系統の潤滑油注油システムに統一する
ことができる。 On the other hand, as shown in FIGS. 1 to 7, there is a leak that communicates with a location where fuel oil from the fuel injection valve 6 may leak into the valve arm chamber 3, for example, a location where the joint 24 and the female threaded hole 22 fit together. By forming the oil detection hole 50, leakage of fuel oil can be detected in advance, so engine seizure, explosion, etc. caused by dilution of lubricating oil in the valve arm chamber 3 can be detected.
Accidents such as scuffing between the liner and piston can be reliably prevented. As a result, the quality of the engine is improved, and the entire engine can be unified into one inexpensive lubricating oil system similar to that of small and medium-sized engines.
第１図は本発明の第１実施例を示す縦断面図、
第２〜第６図はそれぞれ第１図の−，−
，−，−，−断面図、第７図は第
４図の−断面図、第８図は第２実施例を示す
縦断面図である。
１……シリンダヘツド、２……噴射弁挿入孔、
３１……燃料戻り孔、３２……ノズル冷却油出口
孔、３３……ノズル冷却油入口孔、４６……漏油
排出孔、４８……漏油仕切り。
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention;
Figures 2 to 6 are - and - of Figure 1, respectively.
, -, -, - sectional view, FIG. 7 is a - sectional view of FIG. 4, and FIG. 8 is a longitudinal sectional view showing the second embodiment. 1...Cylinder head, 2...Injection valve insertion hole,
31... Fuel return hole, 32... Nozzle cooling oil outlet hole, 33... Nozzle cooling oil inlet hole, 46... Oil leakage discharge hole, 48... Oil leakage partition.
Claims (1)
し、燃料戻り孔、ノズル冷却液出口孔及びノズル
冷却液入口孔を、シリンダヘツド側面からシリン
ダヘツド内を通して噴射弁挿入孔に開口し、上記
戻り孔、出口孔及び入口孔より下側のシリンダヘ
ツド部分に、噴射弁挿入孔からシリンダヘツド内
を通つて外部に至る漏油排出孔を設け、漏油排出
孔の開口部分に対応する噴射弁挿入孔内の位置に
環状の漏油仕切りを設け、該漏油仕切りと噴射弁
挿入孔内周面との間で、漏油排出孔に連通する上
端開放状の漏油ガイド路を形成したことを特徴と
する内燃機関のシリンダヘツド。1 Fit the fuel injection valve into the inner peripheral surface of the injection valve insertion hole, and open the fuel return hole, nozzle coolant outlet hole, and nozzle coolant inlet hole from the side of the cylinder head into the cylinder head and into the injection valve insertion hole. An oil leakage hole extending from the injection valve insertion hole to the outside through the inside of the cylinder head is provided in the cylinder head portion below the return hole, outlet hole, and inlet hole, and corresponds to the opening portion of the oil leakage hole. An annular oil leakage partition is provided at a position within the injection valve insertion hole, and an oil leakage guide path with an open upper end that communicates with the oil leakage discharge hole is formed between the oil leakage partition and the inner peripheral surface of the injection valve insertion hole. A cylinder head for an internal combustion engine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP87183A JPS59126067A (en) | 1983-01-06 | 1983-01-06 | Cylinder head of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP87183A JPS59126067A (en) | 1983-01-06 | 1983-01-06 | Cylinder head of internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59126067A JPS59126067A (en) | 1984-07-20 |
| JPH028142B2 true JPH028142B2 (en) | 1990-02-22 |
Family
ID=11485729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP87183A Granted JPS59126067A (en) | 1983-01-06 | 1983-01-06 | Cylinder head of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126067A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4836189B2 (en) * | 2006-09-26 | 2011-12-14 | ネッツエスアイ東洋株式会社 | Front door unlocking mechanism, housing structure, and money handling device |
| DE102007002760A1 (en) * | 2007-01-18 | 2008-07-24 | Robert Bosch Gmbh | Fuel injector with integrated pressure booster |
| DE102008003129A1 (en) * | 2008-01-02 | 2009-07-09 | Deutz Ag | Reciprocating piston combustion engine for use in e.g. tunnel work machine at salt mine, has flume attached between sealing seat and seal of injection nozzle retainer in cylinder head at step opening |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA973042A (en) * | 1972-06-26 | 1975-08-19 | Stanley J. Kranc | Fuel injection system with a leak-off passage |
| JPS57107843U (en) * | 1980-12-19 | 1982-07-03 |
-
1983
- 1983-01-06 JP JP87183A patent/JPS59126067A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59126067A (en) | 1984-07-20 |
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