JPH01219320A - Hydro-lock preventing device for internal combustion engine - Google Patents
Hydro-lock preventing device for internal combustion engineInfo
- Publication number
- JPH01219320A JPH01219320A JP4443788A JP4443788A JPH01219320A JP H01219320 A JPH01219320 A JP H01219320A JP 4443788 A JP4443788 A JP 4443788A JP 4443788 A JP4443788 A JP 4443788A JP H01219320 A JPH01219320 A JP H01219320A
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- cylinder
- liquid
- valve
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 230000009545 invasion Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
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、往復動式４サイクル内燃機関（以下内燃機関
と呼ぶ）のシリンダ内に、水、油等の非圧縮性液体が侵
入し、いわゆるハイドロロック状態となって、始動不能
や構造部品を損傷することを防止する内燃機関のハイド
ロロック防止装置に関するものである。Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention is directed to a reciprocating four-stroke internal combustion engine (hereinafter referred to as an internal combustion engine) in which incompressible gas such as water or oil is The present invention relates to a hydrolock prevention device for an internal combustion engine, which prevents liquid from entering and causing a so-called hydrolock state, resulting in inability to start or damage to structural parts.
（従来の技術）
一般に内燃機関のシリンダ内には、運転休止中に燃料、
潤滑油及び水分が侵入して、始動時これが大きな抵抗と
なって始動を困難にする他、構造部分を破損させるハイ
ドロロックと呼ばれる現象が発生する。従来これの防止
対策として、第４図の構成断面図で示すように、予めシ
リンダ１の上部に、内部と連通ずる導通管２とこれにシ
リンダコック３を取付けて、始動前にシリンダコック３
を手動で開き、内燃機関を別動力によって微速回転させ
てシリンダ１内に液体が侵入していた場合、これをシリ
ンダコック３を通じて、シリンダ１外に排出させ、これ
を目視により確認する。これにより液体侵入がなければ
ハイドロロックがおきないから、シリンダコック３を手
動で閉めて、内燃機関を始動する。(Prior art) Generally, fuel is stored in the cylinder of an internal combustion engine when the engine is not operating.
Lubricating oil and moisture enter the engine, creating a large resistance during starting, making it difficult to start, and also causing a phenomenon called hydrolock, which can damage structural parts. Conventionally, as a preventive measure against this, as shown in the cross-sectional view of the structure in FIG.
If liquid has entered the cylinder 1 by manually opening the internal combustion engine and rotating the internal combustion engine at a very low speed using separate power, the liquid is discharged outside the cylinder 1 through the cylinder cock 3, and this is visually confirmed. As a result, if there is no intrusion of liquid, hydrolock will not occur, so the cylinder cock 3 is manually closed and the internal combustion engine is started.
また他の例としては、始動前にシリンダコック３を閉め
た状態で内燃機関を他力で微速回転し、もしシリンダ１
内に液体が侵入していた場合にはシリンダ１内が異常高
圧になるので、その圧力の抵抗を検出して、液体が侵入
しているとして、警報を発するか、または内燃機関の始
動を禁じ、シリンダコック３を開いて液体を排出してか
ら運転をする。As another example, if the internal combustion engine is rotated at a slow speed by external force with the cylinder cock 3 closed before starting, and if the cylinder 1
If liquid has entered the cylinder 1, the pressure inside cylinder 1 will be abnormally high, so the pressure resistance will be detected and an alarm will be issued or the internal combustion engine will be prohibited from starting. , open the cylinder cock 3 and discharge the liquid before starting operation.
（発明が解決しようとする課題）
しかしながら非常時電源用、予備電源用等の内燃機関は
、その用途上始動前にシリンダコック３を開閉したり、
外部からの動力による微速回転での液体侵入確認を行う
時間的余裕がないものが多い、もし自動信号により始動
する場合であると、液体侵入があった時にはハイドロロ
ックによる内燃機関の始動失敗、またシリンダ１内が異
常高圧状態になり、内燃機関の損傷が発生し、非常時用
、予備用としての本来の機能を喪失すると共に、財産的
損害を被ることになる。例えシリンダ１内の液体侵入を
始動前に確認できる時間的余裕があったとしても、前例
の場合シリンダコック３の開閉、液体排出の目視確認、
微速運転の実施をする人的作業が必要で、訓練を積んだ
人員の確保が必要であり、ざらにシリンダコック３の閉
め忘れ等の人的ミスによる機能の未達成が起こり得る可
能性がある。また侵例の方式では、シリンダ１内への液
体侵入は確認できても自動的にシリンダ１内の液体をシ
リンダ１外に排出することはできないため、特に非常時
用、予備用電源として通常要求される自動始動信号によ
る緊急始動には対応できないという問題があった。(Problem to be Solved by the Invention) However, internal combustion engines for emergency power supply, backup power supply, etc., open and close the cylinder cock 3 before starting due to their purpose.
Many engines do not have enough time to check for liquid intrusion at very low speed rotations using external power.If the engine is started by an automatic signal, if liquid intrudes, the internal combustion engine may fail to start due to hydro-lock, or The inside of the cylinder 1 will be in an abnormally high pressure state, causing damage to the internal combustion engine, causing loss of its original function as an emergency and backup engine, and resulting in property damage. Even if there was enough time to check for liquid intrusion into the cylinder 1 before starting, in the case of the previous example, opening and closing of the cylinder cock 3, visual confirmation of liquid discharge,
Human work is required to perform slow speed operation, and it is necessary to secure trained personnel, and there is a possibility that the function may not be achieved due to human error such as forgetting to close the cylinder cock 3. . In addition, with the conventional method, even if it is confirmed that liquid has entered the cylinder 1, the liquid inside the cylinder 1 cannot be automatically discharged outside the cylinder 1, so it is usually required as a backup power source especially for emergencies. There was a problem in that it was not possible to respond to an emergency start using an automatic start signal.
本発明は以上の事情に鑑みてなされてもので、その目的
とするところは内燃機関のシリンダ内への液体侵入防止
と、侵入した液体を排除してハイドロロックを防止し、
内燃機関運転の健全性を向上させる内燃機関のハイドロ
ロック防止装置を提供することにある。The present invention has been made in view of the above circumstances, and its objectives are to prevent liquid from entering into the cylinders of an internal combustion engine, and to prevent hydrolock by eliminating the liquid that has entered.
An object of the present invention is to provide a hydrolock prevention device for an internal combustion engine that improves the soundness of internal combustion engine operation.
（課題を解決するための手段）
往復動式４サイクル内燃機関のシリンダ及び吸排気口に
これと連通する導通管と、この導通管に開閉弁及びタン
クを設けて、漏洩検出器に連結する。(Means for Solving the Problems) A conduit pipe communicating with the cylinder and intake/exhaust port of a reciprocating four-stroke internal combustion engine, and an on-off valve and a tank are provided in this conduit pipe, and connected to a leak detector.
（作 用）
内燃機関の停止中は開閉弁を開いておき、排気口及び吸
気口より侵入した液体は導通管と開閉弁及びタンクを経
由して漏洩検出器に流下させる。(Operation) When the internal combustion engine is stopped, the on-off valve is kept open, and liquid that enters through the exhaust port and intake port is allowed to flow down to the leak detector via the conduit pipe, on-off valve, and tank.
またシリンダ内に侵入した液体は、始動時に内燃機関を
回転させピストンによりシリンダ内より漏洩検出器に排
出させた後開閉弁を閉じて、内燃機関を運転させる。漏
洩検出器は流入した液体を検知して警報を発する。圧縮
空気による始動では、侵入液体を−Ｈタンクに貯溜した
後漏洩検出器に流下させる。Further, the liquid that has entered the cylinder is discharged from the cylinder to the leak detector by the piston when the internal combustion engine is rotated during startup, and then the on-off valve is closed and the internal combustion engine is operated. Leak detectors detect incoming liquid and issue an alarm. In a compressed air start-up, the intruding liquid is stored in the -H tank and then allowed to flow down to the leak detector.
（実施例） 本発明の一実施例を図面を参照して説明する。(Example) An embodiment of the present invention will be described with reference to the drawings.
なお前記した従来の技術と同一の部分については同一符
号を付して詳細な説明は省略する。Note that the same parts as those in the prior art described above are given the same reference numerals and detailed explanations are omitted.
第１図は内燃機関の１個のシリンダ部とハイドロロック
防止装置の構成断面図で、シリンダカバー４またはシリ
ンダライナ５の上部にシリンダ１内に通じて、内燃機関
の始動時にシリンダ１内に侵入した液体を排出できる太
さで、下り勾配を有する導通管６と、排気弁７の近くで
排気口８に通じる下り勾配の導通管９及び吸気弁１０に
近く、吸気口１１に通じる傾斜した導通管１２を設ける
。各導通管６．９．１２には電気信号１３で作動する開
閉弁１４．１５．１６を取付け、配管１７で一括して漏
洩検出器１８に接続する。この漏洩検出器１８は容器１
８ａ部と、容器１８ａ内に流入した液体を検出する例え
ば液位検出器１８ｂと、オーバーフロー路を兼ねた通気
管１９で構成され、タンクに流入した液体を検知すると
警報信号２０を発する。なお開閉弁１４．１５．１６は
、シリンダ容積に影響を与えぬようにシリンダカバー４
、あるいはシリンダライナ５に接近して設置する。Figure 1 is a cross-sectional view of the structure of one cylinder part of an internal combustion engine and a hydrolock prevention device. A conduit pipe 6 with a downward slope and a thickness capable of discharging the liquid that has been removed, a conduit pipe 9 with a downward slope leading to the exhaust port 8 near the exhaust valve 7, and a sloped conduction pipe close to the intake valve 10 and leading to the intake port 11. A tube 12 is provided. An on-off valve 14.15.16 operated by an electric signal 13 is attached to each conductive pipe 6.9.12, and the pipes 17 are collectively connected to a leak detector 18. This leak detector 18 is connected to the container 1
8a, a liquid level detector 18b for detecting the liquid that has flowed into the container 18a, and a vent pipe 19 that also serves as an overflow path, and emits an alarm signal 20 when the liquid that has flowed into the tank is detected. Note that the on-off valves 14, 15, and 16 are installed with the cylinder cover 4 closed so as not to affect the cylinder volume.
, or installed close to the cylinder liner 5.
次に上記構成による作用について述べる。内燃機関は空
気を吸入、圧縮し、燃料を噴射して爆発させ、排気ガス
を排出する吸入、圧縮、爆発、排気の４行程を繰返し、
各行程に合せて排気弁７、吸気弁１０も開閉を繰返し、
シリンダライナ５内をピストン２１が往復動する。この
ピストン２１の往復運動は連結棒２２を介して図示しな
いクランク軸を回転させる。内燃機関停止中にシリンダ
１内に液体が侵入滞留して、所定量以上になると、液体
は導通管６と内燃機関の停止中に開いている開閉弁１４
及び配管１７を介して漏洩検出器１８に到達する。Next, the effects of the above configuration will be described. An internal combustion engine takes in air, compresses it, injects fuel and explodes it, and then exhausts exhaust gas by repeating four strokes: suction, compression, explosion, and exhaust.
The exhaust valve 7 and intake valve 10 are also opened and closed repeatedly according to each stroke,
A piston 21 reciprocates within the cylinder liner 5. This reciprocating movement of the piston 21 rotates a crankshaft (not shown) via the connecting rod 22. When liquid enters and accumulates in the cylinder 1 while the internal combustion engine is stopped and exceeds a predetermined amount, the liquid flows through the conduction pipe 6 and the on-off valve 14 that is open while the internal combustion engine is stopped.
and reaches the leak detector 18 via the piping 17.
この漏洩検出器１８内で液体が所定量になると、警報信
号２０が発せられる。またピストン２１の停止位置によ
っては、排気弁７、吸気弁１０の一方または両方が閉じ
ている場合があり、排気口８側あるいは吸気口１１側か
ら液体が侵入することがあるが、この場合液体は導通管
９．１２と開閉弁１５．１６を介して漏洩検出器１８に
流入するので、警報信号２０が発せられ、内燃機関停止
中における液体侵入が検出される。なお内燃機関停止中
においてシリンダ１内に侵入した液体が所定量以下の場
合には、導通管６．９．１２を通して漏洩検出器１８に
流下せず、したがって警報信号２０を発することができ
ないが、例え液体侵入量が所定量より少ない時でも内燃
機関の始動時には、圧縮行程の時にピストン２１で侵入
液体を導通管６を通して漏洩検出器１８へ排出するので
、ハイドロロックが防止できる。したがって開閉弁１４
は内燃機関が始動し、全ピストン２１が侵入液体を排出
する圧縮行程を完了する数回転までは開けておき、その
俊閉じてシリンダ１内の圧力、ガス等が漏洩検出器１８
側に放出されないようにする。また開閉弁１５．１６は
、停止中間じていたかも知れない排気弁７、吸気弁１０
も内燃機関の始動により開くことになるため、排気口８
側、吸気口１１側からの液体の侵入を検知する必要はな
くなり、内燃機関の始動と同時に閉じて、排気ガス及び
吸気が漏洩検出器１８側に放出できないようにする。When a predetermined amount of liquid is present in the leak detector 18, an alarm signal 20 is generated. Also, depending on the stopping position of the piston 21, one or both of the exhaust valve 7 and the intake valve 10 may be closed, and liquid may enter from the exhaust port 8 side or the intake port 11 side. flows into the leakage detector 18 via the conduit 9.12 and the shut-off valve 15.16, so that an alarm signal 20 is generated and liquid ingress is detected when the internal combustion engine is stopped. Note that if the amount of liquid that has entered the cylinder 1 is less than a predetermined amount while the internal combustion engine is stopped, it will not flow down to the leak detector 18 through the conduit pipe 6.9.12, and therefore the alarm signal 20 cannot be issued. Even when the amount of liquid intrusion is less than a predetermined amount, when the internal combustion engine is started, the piston 21 discharges the intruding liquid through the conduit pipe 6 to the leak detector 18 during the compression stroke, so hydrolock can be prevented. Therefore, the on-off valve 14
is kept open until the internal combustion engine starts and all the pistons 21 complete the compression stroke to expel the intruding liquid, and then closed until the pressure, gas, etc. inside the cylinder 1 is detected by the leak detector 18.
Prevent it from being released to the side. Also, the on-off valves 15 and 16 are exhaust valve 7 and intake valve 10, which may have been present during the stoppage.
The exhaust port 8 will also open when the internal combustion engine starts.
It is no longer necessary to detect the intrusion of liquid from the intake port 11 side, and the internal combustion engine is closed at the same time as the internal combustion engine is started, thereby preventing exhaust gas and intake air from being discharged to the leak detector 18 side.
第２図は他の実施例の構成断面図で、内燃機関の始動に
際し圧縮空気を用いてピストン２１を動かす場合の装置
を示すもので、構成としては上記第１図に示す一実施例
における導通管６．９．１２に、開閉弁１４．１５．１
６とシリンダ１の間に夫々用２の開閉弁３０．３２．３
５と侵入液体を一時収容するタンク３１．３３．３５を
設けると共にタンク３１．３３．３５の下部に夫々用３
の開閉弁３７．３８．３９とこれの出口を一括して漏洩
検出器１８に連結する配管４０を設けたものである。内
燃機関の始動時にシリンダ１内に圧縮空気を送り込むた
め、開閉弁１４．１５．１６を開いておくと、圧縮空気
が漏洩検出器１８側に逃げてしまい始動ができない。な
お圧縮空気を送るタイミングはピストン２１が上死点近
くにあることが条件である。始動に際し予め第２の開閉
弁３０．３２．３４を開き、第３の開閉弁３７．３８．
３９は閉じておく。FIG. 2 is a cross-sectional view of another embodiment, showing a device for moving the piston 21 using compressed air when starting an internal combustion engine. On pipe 6.9.12, on-off valve 14.15.1
2 open/close valves 30.32.3 between 6 and cylinder 1, respectively.
5 and a tank 31.33.35 for temporarily storing the intruding liquid, and a tank 31.33.35 is provided at the bottom of the tank 31.33.35, respectively.
On-off valves 37, 38, and 39 and piping 40 are provided that connect the outlets of the valves 37, 38, and 39 all together to the leak detector 18. If the on-off valves 14, 15, and 16 are kept open in order to send compressed air into the cylinder 1 when starting the internal combustion engine, the compressed air will escape to the leak detector 18 side and the engine will not start. Note that the timing for sending the compressed air is such that the piston 21 is near the top dead center. When starting, the second on-off valves 30, 32, 34 are opened in advance, and the third on-off valves 37, 38.
39 is closed.
開閉弁１４．１５．１６は内燃機関始動と同時に電気信
号１３により閉じる。圧縮空気はシリンダ１内より開閉
弁３０、導通管６を介してタンク３１内に充満され、ピ
ストン２１を下死点に向かって移動する。次いで下死点
から上死点にピストン２１が移動する途中から排気弁７
が開き、また吸気弁１０も上死点近くになると開くため
、シリンダ１内の液体はピストン２１に押し上げられて
、排気口８、吸気口１１から第２の開閉弁と導通管９．
１２を介してタンク３３．３５に入る。なお次のピスト
ン２１下降の時に排気弁７と吸気弁１０は一時開いてい
るが、シリンダ１内に戻る液体は極く少量であり内燃機
関の始動や損傷に至るような状態にはならない。第２の
開閉弁３０．３２．３５は内燃機開始動後数回転して電
気信号３６により閉ざし、シリンダ１の容積に影響を与
えぬようにする。またタンク３１．３３．３５内に溜っ
た液体は、始動完了後に電気信号４１により第３の開閉
弁３７．３８．３９を開いて、配管４０より漏洩検出器
１８に流下させて、その量によっては警報信号２０を発
して、液体の侵入があったことを知らせる。なお第３の
開閉弁３７．３８．３９は配管４０の一括部に１個備え
ても良い。The on-off valves 14, 15, 16 are closed by the electric signal 13 at the same time as the internal combustion engine is started. Compressed air is filled into the tank 31 from inside the cylinder 1 via the on-off valve 30 and the conduction pipe 6, and moves the piston 21 toward the bottom dead center. Then, from the middle of the piston 21 moving from the bottom dead center to the top dead center, the exhaust valve 7
opens, and the intake valve 10 also opens near the top dead center, so the liquid in the cylinder 1 is pushed up by the piston 21 and flows from the exhaust port 8 and intake port 11 to the second on-off valve and the conduit pipe 9.
12 into tank 33.35. Although the exhaust valve 7 and the intake valve 10 are temporarily open when the piston 21 descends next time, the amount of liquid that returns into the cylinder 1 is extremely small and will not cause the internal combustion engine to start or be damaged. The second opening/closing valve 30, 32, 35 rotates several times after the internal combustion engine starts and is closed by an electric signal 36 so as not to affect the volume of the cylinder 1. Further, the liquid accumulated in the tank 31, 33, 35 is discharged by opening the third on-off valve 37, 38, 39 by the electric signal 41 after the start is completed, and flowing down to the leak detector 18 from the piping 40, depending on the amount. emits an alarm signal 20 to notify that there has been a liquid intrusion. Incidentally, one third on-off valve 37, 38, 39 may be provided in one part of the piping 40.
第３図はその他の実施例で、上記第１図に示した一実施
例に比べ、シリンダヘッド４からの導通管９．１２と開
閉弁１５．１６を省いたもので、排気弁７と吸気弁１０
が閉じている時の排気口８と吸気口１１からの液体の侵
入は検知できないが、シリンダ１内へ侵入した液体は検
知できる。またシリンダ数が複数個で排気口、吸気口が
連通している構造の場合には、排気弁７、吸気弁１０の
状態により排気口８、吸気口１１からの侵入液体が、他
のシリンダ内に侵入した時点での検知が可能である。こ
の装置の場合も開閉弁１４は始動時、数回転後に閉ざす
。また圧縮空気による始動の場合には、上記第２図のも
のと同様に第２、第３の開閉弁３０．３７と、タンク３
１を設ければ良い。FIG. 3 shows another embodiment in which, compared to the embodiment shown in FIG. valve 10
Although liquid entering from the exhaust port 8 and intake port 11 cannot be detected when the cylinder is closed, liquid entering the cylinder 1 can be detected. In addition, in the case of a structure in which there are multiple cylinders and the exhaust port and intake port are in communication, depending on the state of the exhaust valve 7 and intake valve 10, liquid that enters from the exhaust port 8 and intake port 11 may enter other cylinders. Detection is possible at the time of intrusion. In this device as well, the on-off valve 14 closes after several rotations at startup. In addition, in the case of starting with compressed air, the second and third on-off valves 30 and 37 and the tank 3 are
It is sufficient to set 1.
なお上記した実施例はいずれも１個のシリンダの場合に
ついて述べたが、シリンダが複数の場合にも装置を複数
にすれば、同様の作用、効果が得られることは勿論であ
る。Although the above-mentioned embodiments have all been described with respect to the case of one cylinder, it goes without saying that similar actions and effects can be obtained even in the case of a plurality of cylinders by using a plurality of devices.
［発明の効果］
以上本発明によれば、内燃機関の停止中にシリンダ内に
侵入して始動時に支障を来たすハイドロロック現象を未
然に防止し、特に非常用、予備用動力の内燃機関の始動
を容易に実施できるので、内燃機関のみならずこれを動
力源として電源等に利用するプラント、ビルディング等
の施設の運転の信頼性が向上する効果がある。[Effects of the Invention] As described above, according to the present invention, the hydro-lock phenomenon that invades the cylinder while the internal combustion engine is stopped and causes problems when starting is prevented, and in particular, the starting of the internal combustion engine with emergency or backup power is prevented. Since this can be easily carried out, it has the effect of improving the reliability of operation not only of internal combustion engines but also of facilities such as plants and buildings that use internal combustion engines as power sources and the like.
第１図は本発明の一実施例の構成断面図、第２図は他の
実施例を示す構成断面図、第３図はその他の実施例の構
成断面図、第４図は従来の装置を示す構成断面図である
。
１・・・シリンダ ４・・・シリンダヘッド６
．９．１２・・・導通管 ７・・・排気弁８・・・排
気口 １０・・・吸気弁１１・・・吸気口
１３．３６．４１・・・電気信号
４．１５．１６・・・開閉弁
１７．４０・・・配管 １８・・・漏洩検出器
１８ａ・・・容器 １８ｂ・・・検出器２０
・・・警報信号 ２１・・・ピストン３０．３
２．３４・・・第２の開閉弁
３１．３３．３５・・・タンク
３７．３８．３９・・・第３の開閉弁。FIG. 1 is a sectional view of the structure of one embodiment of the present invention, FIG. 2 is a sectional view of another embodiment, FIG. 3 is a sectional view of another embodiment, and FIG. 4 is a sectional view of the conventional device. FIG. 1...Cylinder 4...Cylinder head 6
．． 9.12... Conduction pipe 7... Exhaust valve 8... Exhaust port 10... Intake valve 11... Intake port 13.36.41... Electric signal 4.15.16... Opening/closing valve 17.40... Piping 18... Leak detector 18a... Container 18b... Detector 20
...Alarm signal 21...Piston 30.3
2.34...Second on-off valve 31.33.35...Tank 37.38.39...Third on-off valve.
Claims (2)
気口に、これと連通する導通管と、この導通管に開閉弁
を設けると共に検出器を備えた容器に連結して、内燃機
関の停止中にはシリンダ内に侵入する液体を検知し、始
動時にはシリンダ内に侵入した液体をシリンダ外に排出
してこれを検出することを特徴とする内燃機関のハイド
ロロック防止装置。(1) Provide a conduit pipe communicating with the cylinder and intake/exhaust port of a reciprocating four-stroke internal combustion engine, and provide an on-off valve in this conduit pipe and connect it to a container equipped with a detector to stop the internal combustion engine. A hydrolock prevention device for an internal combustion engine is characterized in that it detects liquid that has entered the cylinder and discharges the liquid that has entered the cylinder outside the cylinder at the time of starting.
の間に、第２の開閉弁とこの下流にタンク及びタンクの
下部に第３の開閉弁を介して検出器の容器に連結する配
管を設けた請求項１記載の内燃機関のハイドロロック防
止装置。(2) A second on-off valve is connected between the internal combustion engine and the on-off valve in a conduit that communicates with the internal combustion engine, and a tank is connected downstream of the second on-off valve, and a third on-off valve is connected to the detector container at the bottom of the tank. 2. A hydrolock prevention device for an internal combustion engine according to claim 1, further comprising a pipe for preventing a hydrolock from occurring in an internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4443788A JPH01219320A (en) | 1988-02-29 | 1988-02-29 | Hydro-lock preventing device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4443788A JPH01219320A (en) | 1988-02-29 | 1988-02-29 | Hydro-lock preventing device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01219320A true JPH01219320A (en) | 1989-09-01 |
Family
ID=12691466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4443788A Pending JPH01219320A (en) | 1988-02-29 | 1988-02-29 | Hydro-lock preventing device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01219320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110196596A1 (en) * | 2010-02-08 | 2011-08-11 | Roland Schleser | Method and device for preventing water damage in internal combustion engines |
-
1988
- 1988-02-29 JP JP4443788A patent/JPH01219320A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110196596A1 (en) * | 2010-02-08 | 2011-08-11 | Roland Schleser | Method and device for preventing water damage in internal combustion engines |
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