JP2007292003A - Engine - Google Patents
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- JP2007292003A JP2007292003A JP2006122835A JP2006122835A JP2007292003A JP 2007292003 A JP2007292003 A JP 2007292003A JP 2006122835 A JP2006122835 A JP 2006122835A JP 2006122835 A JP2006122835 A JP 2006122835A JP 2007292003 A JP2007292003 A JP 2007292003A
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Abstract
Description
本発明は、検検油棒を挿入する検油棒管をエンジン側方に延設し、該検油棒でオイルパンに貯溜する潤滑油の量を計測する構成としたエンジンに関する。 The present invention relates to an engine having a configuration in which an oil inspection rod tube into which an inspection oil inspection rod is inserted is extended to the side of the engine and the amount of lubricating oil stored in an oil pan is measured by the oil inspection rod.
従来から、吸気系にブローバイガスを還元する構造を備え、ボンネットなどに取り付けた弁によりブローバイガスの流量を調整可能とし、またエンジン内の圧力を調整可能としたエンジンは公知となっている（例えば、特許文献１参照。）。このようなエンジンでクランクケース下部に設けたオイルパンに検油棒管を連通接続してエンジン側方に延出して、該検油棒管に検油棒を挿入し、該検油棒でオイルパンに貯溜する潤滑油の量を検出するように構成した場合、エンジン内の圧力が前記弁により負圧に保たれるため、検油棒を検油棒管から抜くだけでは、潤滑油の量を正確に測ることができない。そのため検油作業時には、潤滑油の供給口を開口して、エンジン内の圧力を外気圧と等しくしてから、検油棒を検油棒管から抜き取って潤滑油の量を計測する必要があった。
従来では、作業者が検油作業前に給油口を開口する必要性を知らなかったり、開口作業が面倒であるために無視したりして、給油口を開口せずにエンジン内の圧力が外気圧と異なったままの状態で検油作業を行うことがあった。そのため、潤滑油の量を正確に測れず、さらにはその誤った測定結果に基づいて潤滑油を補給することにより潤滑油の供給過剰または供給不足を生じさせて、エンジンの故障を引き起こす恐れがあった。 Conventionally, the operator does not know the necessity of opening the oil filler port before the oil inspection work, or ignores it because the opening work is troublesome, and the pressure inside the engine is released without opening the oil filler port. Oil inspection work was sometimes performed in a state different from atmospheric pressure. For this reason, the amount of lubricating oil cannot be measured accurately, and replenishment of lubricating oil based on the erroneous measurement results may cause excessive or insufficient supply of lubricating oil, resulting in engine failure. It was.
本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。 The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
即ち、請求項１においては、検油棒を挿入する検油棒管をエンジン側方に延設し、該検油棒でオイルパンに貯溜する潤滑油の量を計測する構成としたエンジンにおいて、前記検油棒管の上部を潤滑油面よりも上方に配置し、該検油棒管の上部と、クランクケースの潤滑油面よりも上方部とを管状部材により連通したものである。 That is, in the first aspect of the present invention, in the engine configured to extend the side of the engine to which the oil inspection rod is inserted and to measure the amount of lubricating oil stored in the oil pan with the oil inspection rod, The upper part of the oil test bar tube is disposed above the lubricating oil surface, and the upper part of the oil test bar tube communicates with the upper part of the crankcase from the lubricating oil surface by a tubular member.
請求項２においては、検油棒を挿入する検油棒管をエンジン側方に延設し、該検油棒でオイルパンに貯溜する潤滑油の量を計測する構成としたエンジンにおいて、前記検油棒管内からクランクケース内に管状部材を挿通し、該管状部材の両端を潤滑油面よりも上方に配置したものである。 According to a second aspect of the present invention, in the engine configured to extend an oil inspection rod tube into which the oil inspection rod is inserted to the side of the engine and to measure the amount of lubricating oil stored in the oil pan with the oil inspection rod, A tubular member is inserted into the crankcase from the oil rod tube, and both ends of the tubular member are disposed above the lubricating oil surface.
請求項３においては、検油棒を挿入する検油棒管をエンジン側方に延設し、該検油棒でオイルパンに貯溜する潤滑油の量を計測する構成としたエンジンにおいて、前記検油棒管に検油棒の着脱状態を検知する検知手段を設け、該検知手段とエンジン内の圧力を開放する弁とが連動するように構成したものである。 According to a third aspect of the present invention, in the engine configured to extend an oil inspection rod tube into which the oil inspection rod is inserted to the side of the engine and measure the amount of lubricating oil stored in the oil pan with the oil inspection rod. The oil rod tube is provided with detecting means for detecting the attached / detached state of the oil detecting rod, and the detecting means and a valve for releasing the pressure in the engine are interlocked.
請求項４においては、前記エンジン内の圧力を開放する弁を電磁弁で構成して、該弁と検知手段とを電気的に接続したものである。 According to a fourth aspect of the present invention, the valve for releasing the pressure in the engine is constituted by an electromagnetic valve, and the valve and the detection means are electrically connected.
本発明の効果として、以下に示すような効果を奏する。 As effects of the present invention, the following effects can be obtained.
請求項１においては、検油作業時には検油棒管から検油棒を抜くだけで、エンジン内の圧力を外気圧と等しくして、潤滑油量を正確に計測することができる。したがって、検油作業を簡略化することができ、さらに潤滑油を適切な量だけ供給することが可能となり、供給過剰や供給不足により生じる恐れのあるエンジンの故障を防ぐことができる。また、管状部材を設けるだけの簡単な構成でエンジン内の圧力と外気圧を等しくすることができる。 According to the first aspect of the present invention, it is possible to accurately measure the amount of lubricating oil by simply pulling out the oil inspection rod from the oil inspection rod tube at the time of the oil inspection operation and making the pressure in the engine equal to the external pressure. Therefore, it is possible to simplify the oil inspection operation and to supply an appropriate amount of lubricating oil, and to prevent engine failure that may occur due to excessive supply or insufficient supply. Further, the internal pressure of the engine and the external air pressure can be made equal with a simple configuration in which only a tubular member is provided.
請求項２においては、検油作業時には検油棒管から検油棒を抜くだけで、エンジン内の圧力を外気圧と等しくして、潤滑油量を正確に計測することができる。したがって、検油作業を簡略化することができ、さらに潤滑油を適切な量だけ供給することが可能となり、供給過剰や供給不足により生じる恐れのあるエンジンの故障を防ぐことができる。また、管状部材を挿通するだけの簡単な構成でエンジン内の圧力と外気圧を等しくすることができる。 According to the second aspect of the present invention, it is possible to accurately measure the amount of lubricating oil by simply pulling out the oil inspection rod from the oil inspection rod tube during the oil inspection operation and making the pressure in the engine equal to the external pressure. Therefore, it is possible to simplify the oil inspection operation and to supply an appropriate amount of lubricating oil, and to prevent engine failure that may occur due to excessive supply or insufficient supply. In addition, the internal pressure of the engine and the external air pressure can be made equal with a simple configuration in which only the tubular member is inserted.
請求項３においては、検油作業時には検油棒管から検油棒を抜くだけで、エンジン内の圧力を外気圧と等しくして、潤滑油量を正確に計測することができる。したがって、検油作業を簡略化することができ、さらに潤滑油を適切な量だけ供給することが可能となり、供給過剰や供給不足により生じる恐れのあるエンジンの故障を防ぐことができる。また、弁は検油作業時にのみ開き、運転時には閉じるため、潤滑油が弁から漏れるのを防止することができる。 According to the third aspect of the present invention, it is possible to accurately measure the amount of lubricating oil by simply pulling out the oil inspection rod from the oil inspection rod tube during the oil inspection operation and making the pressure in the engine equal to the external pressure. Therefore, it is possible to simplify the oil inspection operation and to supply an appropriate amount of lubricating oil, and to prevent engine failure that may occur due to excessive supply or insufficient supply. Further, since the valve is opened only during the oil inspection operation and closed during the operation, it is possible to prevent the lubricating oil from leaking from the valve.
請求項４においては、エンジン内の圧力を開放するための弁をエンジンの任意の位置に配置することができる。 According to the fourth aspect of the present invention, a valve for releasing the pressure in the engine can be disposed at any position of the engine.
図１は本発明の一実施例に係るエンジンの全体的な構成を示した前方斜視図、図２は同じく後方斜視図、図３は第一実施例の構造を備えたエンジンの側面断面図、図４は第二実施例の構造を備えたエンジンの側面断面図、図５は第三実施例の構造を備えたエンジンの側面断面図、図６は第三実施例の別形態の構造を備えたエンジンの側面断面図である。 1 is a front perspective view showing an overall configuration of an engine according to an embodiment of the present invention, FIG. 2 is a rear perspective view of the same, FIG. 3 is a side sectional view of an engine having the structure of the first embodiment, 4 is a side sectional view of the engine having the structure of the second embodiment, FIG. 5 is a side sectional view of the engine having the structure of the third embodiment, and FIG. 6 is a structure of another form of the third embodiment. FIG.
エンジン１においては、図１、図２に示すように、シリンダブロック２の上部にシリンダヘッド３を設け、該シリンダヘッド３に吸気弁や排気弁、燃料噴射弁などを備えている。シリンダヘッド３の上部には吸気弁や排気弁を動かす動弁機構を設け、これを覆うボンネット４を取り付けられている。また、シリンダヘッド３の一側方には吸気マニホールド５を介してエアクリーナを取付可能とし、他側方に排気マニホールド６を介して排気マフラを取付可能としている。 In the engine 1, as shown in FIGS. 1 and 2, a cylinder head 3 is provided above the cylinder block 2, and the cylinder head 3 is provided with an intake valve, an exhaust valve, a fuel injection valve, and the like. A valve operating mechanism for moving an intake valve and an exhaust valve is provided at the upper part of the cylinder head 3 and a bonnet 4 is attached to cover the valve operating mechanism. An air cleaner can be attached to one side of the cylinder head 3 via an intake manifold 5, and an exhaust muffler can be attached to the other side via an exhaust manifold 6.
ボンネット４には、シリンダブロック２下部のクランクケース１３内に発生するブローバイガスを吸気マニホールド５などで形成される吸気系に還元するブローバイガス還元装置を設け、該ブローバイガス還元装置に備えた弁１４によりブローバイガスの流量およびエンジン１内の圧力を調整することができるように構成している。そして、弁１４によりエンジン１内の圧力を負圧に保つようにしている。 The bonnet 4 is provided with a blow-by gas reduction device for reducing blow-by gas generated in the crankcase 13 below the cylinder block 2 to an intake system formed by the intake manifold 5 or the like, and a valve 14 provided in the blow-by gas reduction device. Thus, the flow rate of blow-by gas and the pressure in the engine 1 can be adjusted. The valve 14 keeps the pressure in the engine 1 at a negative pressure.
シリンダブロック２の側部には燃料供給ポンプ７や燃料噴射ポンプ８を取り付け、燃料供給ポンプ７で燃料を図示せぬ燃料タンクから燃料噴射ポンプ８に燃料フィルタ１１を介して供給し、ついで燃料を燃料噴射ポンプ８からシリンダヘッド３の燃料噴射弁に圧送するようにしている。こうして、燃料噴射弁によりシリンダブロック２に形成したシリンダ内に燃料を噴射可能としている。 A fuel supply pump 7 and a fuel injection pump 8 are attached to the side of the cylinder block 2, and fuel is supplied from a fuel tank (not shown) to the fuel injection pump 8 via the fuel filter 11 by the fuel supply pump 7, and then the fuel is supplied. Pressure is fed from the fuel injection pump 8 to the fuel injection valve of the cylinder head 3. Thus, fuel can be injected into the cylinder formed in the cylinder block 2 by the fuel injection valve.
シリンダブロック２の側部にはまたギヤケース１０や潤滑油ポンプなども取り付けている。ギヤケース１０にはクランクケース１３に軸支するクランク軸の動力を燃料供給ポンプ７や燃料噴射ポンプ８などに伝達するためのギヤ類を収納し、該ギヤケース１０のギヤ類やシリンダヘッド３の動弁機構などにオイルパン１２に貯溜した潤滑油を潤滑油ポンプで供給するようにしている。 A gear case 10 and a lubricating oil pump are also attached to the side of the cylinder block 2. The gear case 10 houses gears for transmitting the power of the crankshaft pivotally supported by the crankcase 13 to the fuel supply pump 7, the fuel injection pump 8, etc., and the gears of the gear case 10 and the valve valves of the cylinder head 3. Lubricating oil stored in the oil pan 12 is supplied to the mechanism by a lubricating oil pump.
オイルパン１２はクランクケースの下側に取り付けている。オイルパン１２にはギヤケース１０に設けた供給口１０ａから供給することで潤滑油を供給可能とし、該オイルパン１２からはその下部側面に設けた排出口１２ａを通じて潤滑油を排出可能としている。そして本実施例では、図３乃至図６に示すように、オイルパン１２の排出口１２ａに検油棒２０を挿入する検油棒管２１を着脱可能に取り付けて、該検油棒２０でオイルパン１２に貯溜する潤滑油の量を計測することができるように構成している。 The oil pan 12 is attached to the lower side of the crankcase. Lubricating oil can be supplied to the oil pan 12 through a supply port 10a provided in the gear case 10, and the lubricating oil can be discharged from the oil pan 12 through a discharge port 12a provided on the lower side surface thereof. In this embodiment, as shown in FIGS. 3 to 6, an oil inspection rod tube 21 for inserting the oil inspection rod 20 is detachably attached to the discharge port 12 a of the oil pan 12, and The amount of lubricating oil stored in the pan 12 can be measured.
検油棒管２１は、たとえば図３に示すように、側面視略Ｌ字状に形成した管状部材から構成し、下部の水平部２１ａの一端をオイルパン１２の下部に排出口１２ａを介して連通させて取り付けている。そして、検油棒管２１の水平部２１ａの他端はエンジン１の側方に延出して、エンジン１に取り付けられる機器または周辺機器と干渉しない所定位置で鉛直部２１ｂを立ち上げ、該鉛直部２１ｂ側の上端をクランクケース１３側方でオイルパン１２内に貯溜する潤滑油の油面（潤滑油面）の上限高さよりも上方に位置するように配置している。そして、該検油棒管２１の上端を上方に開口し、ここから検油棒２０を検油棒管２１の鉛直部２１ｂに挿入して取り付けることができるようにしている。 For example, as shown in FIG. 3, the oil inspection rod tube 21 is constituted by a tubular member formed in a substantially L shape in a side view, and one end of the lower horizontal portion 21 a is connected to the lower portion of the oil pan 12 via a discharge port 12 a. Installed in communication. The other end of the horizontal portion 21a of the oil inspection rod tube 21 extends to the side of the engine 1, and the vertical portion 21b is raised at a predetermined position that does not interfere with equipment or peripheral equipment attached to the engine 1, and the vertical portion The upper end on the side of 21b is arranged so as to be located above the upper limit height of the oil surface (lubricating oil surface) of the lubricating oil stored in the oil pan 12 on the side of the crankcase 13. The upper end of the oil inspection rod tube 21 is opened upward, and the oil inspection rod 20 can be inserted and attached to the vertical portion 21b of the oil inspection rod tube 21 from here.
検油棒２０はその中途部に栓体２２を備えて構成している。栓体２２はゴムや合成樹脂などの耐油性を有する弾性体から形成し、検油棒２０を検油棒管２１に挿入したときに、検油棒管２１の上端に嵌合しこれを閉塞するようにしている。そして、検油棒２０を栓体２２に貫通支持し、該栓体２２を介して検油棒管２１に取り付けることができるようにしている。栓体２２から延出する検油棒２０の一側には検油棒管２１への着脱時に握る把持部２０ａを形成し、検油棒２０の着脱操作を行いやすくしている。一方、検油棒２０の他側は、検油棒２０を検油棒管２１に取り付けたときに、先端が検油棒管２１内で潤滑油面に届くように延出している。 The oil inspection rod 20 includes a stopper 22 in the middle thereof. The plug body 22 is formed of an elastic material having oil resistance such as rubber or synthetic resin, and when the oil inspection rod 20 is inserted into the oil inspection rod tube 21, it is fitted to the upper end of the oil inspection rod tube 21 so as to close it. Like to do. The oil inspection rod 20 is supported by penetrating the plug body 22 so that the oil inspection rod 20 can be attached to the oil inspection rod pipe 21 via the plug body 22. A gripping portion 20a is formed on one side of the oil inspection rod 20 extending from the plug body 22 so as to be easily attached to and detached from the oil inspection rod tube 21 so that the oil inspection rod 20 can be easily attached and detached. On the other hand, the other side of the oil inspection rod 20 extends so that the tip reaches the lubricating oil surface in the oil inspection rod tube 21 when the oil inspection rod 20 is attached to the oil inspection rod tube 21.
こうしてオイルパン１２に検油棒管２１を連通接続することで、オイルパン１２に貯溜する潤滑油の一部を検油棒管２１に流入させて、該検油棒管２１の潤滑油面がオイルパン１２の潤滑油面と等しい高さとなるようにしている。そして、検油棒管２１に挿入して栓体２２を介して取り付ている検油棒２０を把持部２０ａをもって検油棒管２１から抜き取ることで、先端側に付着した潤滑油から潤滑油面の高さを検知して、オイルパン１２に貯溜する潤滑油の量を計測することを可能としている。 In this way, by connecting the oil inspection rod tube 21 to the oil pan 12, a part of the lubricating oil stored in the oil pan 12 is caused to flow into the oil inspection rod tube 21, and the lubricating oil surface of the oil inspection rod tube 21 is made to flow. The height is equal to the lubricating oil surface of the oil pan 12. Then, the oil inspection rod 20 inserted into the oil inspection rod tube 21 and attached via the plug 22 is pulled out from the oil inspection rod tube 21 with the gripping portion 20a, so that the lubricating oil is removed from the lubricating oil adhering to the tip side. It is possible to measure the amount of lubricating oil stored in the oil pan 12 by detecting the height of the surface.
このようなエンジン１では、前記ブローバイガス還元装置の弁１４によりエンジン内の圧力が負圧に保たれているため、潤滑油の量を正確に計測するには検油作業を行う前にエンジン１内の圧力を開放する必要がある。そこで、前述のような検油棒２０を用いて潤滑油の量を計測する構成において、検油棒２０を検油棒管２１から抜き取るときに、エンジン１内の圧力と外気圧とを簡単な構成で自動的に等しくするための構造を設けている。以下にその構造について説明する。 In such an engine 1, since the pressure in the engine is maintained at a negative pressure by the valve 14 of the blow-by gas reduction device, the engine 1 is required before the oil inspection operation to accurately measure the amount of lubricating oil. It is necessary to release the pressure inside. Therefore, in the configuration in which the amount of lubricating oil is measured using the oil inspection rod 20 as described above, when the oil inspection rod 20 is extracted from the oil inspection rod pipe 21, the pressure inside the engine 1 and the external pressure can be simply set. A structure for automatically equalizing the structure is provided. The structure will be described below.
本実施例では、図３（ａ）に示すように、検油棒管２１とクランクケース１３との間に管状部材３１を配置し、該管状部材３１の一端を検油棒管２１の上部に接続し、他端をクランクケース１３に接続して、検油棒管２１内部とクランクケース１３内部とを連通している。クランクケース１３の管状部材３１との接続部に形成する開口１３ａは、潤滑油面の上限高さよりも上方に配置し、同様に検油棒管２１の管状部材３１との接続部に形成する開口２１ｃも潤滑油面の上限高さよりも上方に配置している。こうして、潤滑油がオイルパン１２もしくは検油棒管２１から管状部材３１に流入するのを防止して、該管状部材３１を通じてクランクケース１３と検油棒管２１との間で空気の移動を可能としている。 In this embodiment, as shown in FIG. 3A, a tubular member 31 is disposed between the oil inspection rod tube 21 and the crankcase 13, and one end of the tubular member 31 is placed on the upper portion of the oil inspection rod tube 21. The other end is connected to the crankcase 13 so that the inside of the oil inspection rod tube 21 and the inside of the crankcase 13 communicate with each other. The opening 13a formed in the connection portion of the crankcase 13 with the tubular member 31 is disposed above the upper limit height of the lubricating oil surface, and is similarly formed in the connection portion of the oil inspection rod tube 21 with the tubular member 31. 21c is also arranged above the upper limit height of the lubricating oil surface. Thus, the lubricating oil is prevented from flowing into the tubular member 31 from the oil pan 12 or the oil inspection rod tube 21, and air can be moved between the crankcase 13 and the oil inspection rod tube 21 through the tubular member 31. It is said.
このように、前記検油棒管２１の上部を潤滑油面よりも上方に配置し、該検油棒管２１の上部と、クランクケース１３の潤滑油面よりも上方部とを管状部材３１により連通したことから、図３（ｂ）に示すように、検油作業時に検油棒管２１から栓体２２を外して検油棒２０を抜き取ったときに、検油棒管２１および管状部材３１を通じてクランクケース１３内部と外部との間で空気の移動が起こり、エンジン１内の圧力と外気圧とが等しくなる。よって、オイルパン１２の潤滑油量を正確に計測することが可能となり、補給が必要であれば潤滑油をオイルパン１２に適切な量だけ供給することができ、供給過剰や供給不足により生じる恐れのあるエンジン１の故障を防ぐことができる。またこのときには、従来のように予め給油口１０ａを開口しなくても、検油棒管２１から検油棒２０を抜き取るだけで、エンジン１内の圧力を外気圧と等しくできるので、検油作業を簡略化することが可能となる。 As described above, the upper portion of the oil inspection rod tube 21 is arranged above the lubricating oil surface, and the upper portion of the oil inspection rod tube 21 and the portion above the lubricating oil surface of the crankcase 13 are formed by the tubular member 31. Because of the communication, as shown in FIG. 3 (b), when the oil inspection rod 20 is removed by removing the plug 22 from the oil inspection rod tube 21 during the oil inspection operation, the oil inspection rod tube 21 and the tubular member 31 are removed. Thus, air moves between the inside and outside of the crankcase 13, and the pressure inside the engine 1 and the outside air pressure become equal. Therefore, the amount of lubricating oil in the oil pan 12 can be accurately measured, and if replenishment is necessary, an appropriate amount of lubricating oil can be supplied to the oil pan 12, which may occur due to excessive supply or insufficient supply. It is possible to prevent a malfunction of the engine 1 having Further, at this time, since the pressure inside the engine 1 can be made equal to the external pressure only by extracting the oil inspection rod 20 from the oil inspection rod tube 21 without previously opening the oil supply port 10a as in the prior art, Can be simplified.
本実施例では、図４（ａ）に示すように、検油棒管２１内からオイルパン１２の排出口１２ａを通じてクランクケース１３内に延びる管状部材３２を設けている。管状部材３２の検油棒管２１側端は潤滑油面の上限高さよりも上方に位置するように検油棒管２１の上端近傍に配置して上方に開口させ、検油棒管２１の上端が検油棒２０の栓体２２により閉塞されると同時に管状部材３２の上端も閉塞され、逆に栓体２２が外され開口されると同時に管状部材３２の上端も開口されて、外部と連通するようにしている。一方、管状部材３２のクランクケース１３側端は、クランクケース１３内で潤滑油面の上限高さよりも上方に位置するように配置して上方に開口させ、クランクケース１３内部と連通するようにしている。こうして、クランクケース１３内部と外部とを管状部材３１により連通し、その間で空気の移動を可能としている。 In the present embodiment, as shown in FIG. 4A, a tubular member 32 extending from the oil inspection rod tube 21 into the crankcase 13 through the discharge port 12a of the oil pan 12 is provided. The end of the tubular member 32 on the side of the oil detection rod tube 21 is arranged in the vicinity of the upper end of the oil inspection rod tube 21 so as to be positioned above the upper limit height of the lubricating oil surface, and is opened upward. Is closed by the plug body 22 of the oil test rod 20, and the upper end of the tubular member 32 is also closed. Conversely, the plug body 22 is removed and opened, and at the same time, the upper end of the tubular member 32 is opened to communicate with the outside. Like to do. On the other hand, the end of the tubular member 32 on the crankcase 13 side is arranged so as to be positioned above the upper limit height of the lubricating oil surface in the crankcase 13 and opened upward so as to communicate with the inside of the crankcase 13. Yes. Thus, the inside and outside of the crankcase 13 are communicated with each other by the tubular member 31, and air can be moved between them.
このように、前記検油棒管２１内からクランクケース１３内に管状部材３２を挿通し、該管状部材３２の両端を潤滑油面よりも上方に配置したことから、図４（ｂ）に示すように、検油作業時に検油棒管２１から栓体２２を外して検油棒２０を抜き取ったときに、管状部材３２を通じてクランクケース１３内部と外部との間で空気の移動が起こり、エンジン１内の圧力と外気圧とが等しくなる。よって、オイルパン１２の潤滑油量を正確に計測することが可能となり、補給が必要であれば潤滑油をオイルパン１２に適切な量だけ供給することができ、供給過剰や供給不足により生じる恐れのあるエンジン１の故障を防ぐことができる。またこのときには、従来のように予め給油口１０ａを開口しなくても、検油棒管２１から検油棒２０を抜き取るだけで、エンジン１内の圧力を外気圧と等しくできるので、検油作業を簡略化することが可能となる。 Thus, the tubular member 32 is inserted into the crankcase 13 from the inside of the oil inspection rod tube 21, and both ends of the tubular member 32 are disposed above the lubricating oil surface. Thus, when the plug 22 is removed from the oil inspection rod tube 21 and the oil inspection rod 20 is pulled out during the oil inspection operation, the movement of air occurs between the inside and the outside of the crankcase 13 through the tubular member 32. The pressure in 1 is equal to the external pressure. Therefore, the amount of lubricating oil in the oil pan 12 can be accurately measured, and if replenishment is necessary, an appropriate amount of lubricating oil can be supplied to the oil pan 12, which may occur due to excessive supply or insufficient supply. It is possible to prevent a malfunction of the engine 1 having Further, at this time, since the pressure inside the engine 1 can be made equal to the external pressure only by extracting the oil inspection rod 20 from the oil inspection rod tube 21 without previously opening the oil supply port 10a as in the prior art, Can be simplified.
本実施例では、図５（ａ）に示すように、検油棒管２１への検油棒２０の着脱状態を検知する検知手段３３を、検油棒２０の着脱部分となる検油棒管２１の上端付近に配設し、エンジン１内の圧力を開放可能とする弁３４をエンジンの内部と連通できる上部の任意位置に設けている。弁３４は電磁弁で構成し、検知手段３３と制御回路を介して接続する。弁３４は、別途設けずにたとえば前記ブローバイガス還元装置に備えた弁１４を利用することも可能であり、検油棒管２１への検油棒２０の着脱操作を検知手段３３が検知することで開または閉作動するように制御している。すなわち、弁３４は検油棒２０が検油棒管２１から抜き取られると開作動し、検油棒２０が検油棒管２１に取り付けられると閉作動するように制御している。こうして、検油棒管２１への検油棒２０の脱着操作に連動させて、弁３４によりエンジン１内の圧力を開放することができるようにしている。 In this embodiment, as shown in FIG. 5 (a), the detection means 33 for detecting the attachment / detachment state of the oil detection rod 20 to the oil detection rod tube 21 is used as the oil detection rod tube serving as the attachment / detachment portion of the oil detection rod 20. A valve 34 disposed near the upper end of the engine 21 and capable of releasing the pressure in the engine 1 is provided at an arbitrary upper position where the valve 34 can communicate with the interior of the engine. The valve 34 is constituted by an electromagnetic valve and is connected to the detection means 33 via a control circuit. For example, the valve 34 provided in the blow-by gas reduction device can be used without providing the valve 34 separately, and the detection means 33 detects the attaching / detaching operation of the oil detecting rod 20 to the oil detecting rod pipe 21. Is controlled to open or close. That is, the valve 34 is controlled to open when the oil inspection rod 20 is extracted from the oil inspection rod tube 21 and to close when the oil inspection rod 20 is attached to the oil inspection rod tube 21. Thus, the pressure in the engine 1 can be released by the valve 34 in conjunction with the operation of detaching the oil inspection rod 20 from the oil inspection rod pipe 21.
このように、前記検油棒管２１に検油棒２０の着脱状態を検知する検知手段３３を設け、該検知手段３３とエンジン１内の圧力を開放する弁３４とが連動するように構成したことから、図５（ｂ）に示すように、検油作業時に検油棒管２１から栓体２２を外して検油棒２０を抜き取ったときに、閉じていた弁３４が開いてエンジン１内の圧力が開放されて、外気圧と等しくなる。よって、オイルパン１２の潤滑油量を正確に計測することが可能となり、補給が必要であれば潤滑油をオイルパン１２に適切な量だけ供給することができ、供給過剰や供給不足により生じる恐れのあるエンジン１の故障を防ぐことができる。またこのときには、従来のように予め給油口１０ａを開口しなくても、検油棒管２１から検油棒２０を抜き取るだけで、エンジン１内の圧力を外気圧と等しくできるので、検油作業を簡略化することが可能となる。さらに、弁３４は検油作業時にのみ開き、運転時には閉じるため、潤滑油が弁３４から漏れるのを防止することができる。 As described above, the detecting rod 33 is provided with the detecting means 33 for detecting the attachment / detachment state of the detecting rod 20, and the detecting means 33 and the valve 34 for releasing the pressure in the engine 1 are interlocked. Therefore, as shown in FIG. 5 (b), when the plug 22 is removed from the oil inspection rod tube 21 and the oil inspection rod 20 is pulled out during the oil inspection operation, the closed valve 34 is opened and the inside of the engine 1 is opened. Is released and becomes equal to the external pressure. Therefore, the amount of lubricating oil in the oil pan 12 can be accurately measured, and if replenishment is necessary, an appropriate amount of lubricating oil can be supplied to the oil pan 12, which may occur due to excessive supply or insufficient supply. It is possible to prevent a malfunction of the engine 1 having Further, at this time, since the pressure inside the engine 1 can be made equal to the external pressure only by extracting the oil inspection rod 20 from the oil inspection rod tube 21 without previously opening the oil supply port 10a as in the prior art, Can be simplified. Further, since the valve 34 opens only during the oil inspection operation and closes during the operation, it is possible to prevent the lubricating oil from leaking from the valve 34.
また前記構造では、エンジン１内の圧力を開放する弁３４を電磁弁で構成して、該電磁弁と検知手段３３を電気的に接続したことから、弁３４を任意の位置に配置することが可能となる。 Further, in the above structure, the valve 34 for releasing the pressure in the engine 1 is constituted by a solenoid valve, and the solenoid valve and the detection means 33 are electrically connected. Therefore, the valve 34 can be arranged at an arbitrary position. It becomes possible.
なお、弁の構成を機械式とすることもできる。この場合、図６（ａ）に示すように、検油棒管２１への検油棒２０の着脱状態を検知する検知手段３６を棒状部材として、その一端に弁３７を固定し、その中央部と検油棒管２１の間にバネ等の弾性部材３８を介装して、弁３７が開く方向に付勢する。そして、検知手段の他端を検油棒管２１内に挿入可能として検油棒２０の栓体２２と当接可能とする。 In addition, the structure of a valve can also be made into a mechanical type. In this case, as shown in FIG. 6 (a), the detection means 36 for detecting the attachment / detachment state of the oil inspection rod 20 to the oil inspection rod tube 21 is used as a rod-shaped member, and a valve 37 is fixed to one end of the detection means 36. An elastic member 38 such as a spring is interposed between the oil detection rod tube 21 and the valve 37 is biased in the opening direction. Then, the other end of the detection means can be inserted into the oil inspection rod tube 21 and can come into contact with the plug 22 of the oil inspection rod 20.
これにより、図６（ｂ）に示すように、検油棒２０の脱着操作に際して上方に持ち上げられる栓体２２により検知手段３６が弾性部材３８により引っ張られて、これに連動して通常は閉じた弁３７を開いて、エンジン１内の圧力を開放することができる。逆に、検油棒２０を検油棒管２１に挿入すると、栓体２２が検知手段３６を押して弁３７が開口部１３ｂを閉塞する。ただし、検知手段と弁と検油棒２０の連動構成はこれに限定するものではなく、レバーやリンクなどを用いて構成することもできる。このように検油棒２０の脱着操作に連動して、機械的に弁を開閉するように構成することで、開口部１３ｂが開口しているかかが容易に判断でき、メンテナンスも容易に行うことができる。 As a result, as shown in FIG. 6B, the detecting means 36 is pulled by the elastic member 38 by the plug 22 that is lifted upward during the operation of attaching and detaching the oil inspection rod 20, and normally closes in conjunction with this. The pressure in the engine 1 can be released by opening the valve 37. Conversely, when the oil inspection rod 20 is inserted into the oil inspection rod tube 21, the plug 22 pushes the detection means 36, and the valve 37 closes the opening 13b. However, the interlocking configuration of the detection means, the valve, and the oil detection rod 20 is not limited to this, and can be configured using a lever or a link. In this way, by configuring the valve to mechanically open and close in conjunction with the operation of attaching and detaching the oil inspection rod 20, it is possible to easily determine whether the opening 13b is open and to perform maintenance easily. Can do.
１ エンジン
１２ オイルパン
１３ クランクケース
２０ 検油棒
２１ 検油棒管
３１ 管状部材
３２ 管状部材
３３ 検知手段
３４ 弁
DESCRIPTION OF SYMBOLS 1 Engine 12 Oil pan 13 Crankcase 20 Oil detection rod 21 Oil detection rod pipe 31 Tubular member 32 Tubular member 33 Detection means 34 Valve
Claims (4)
前記検油棒管の上部を潤滑油面よりも上方に配置し、該検油棒管の上部と、クランクケースの潤滑油面よりも上方部とを管状部材により連通したことを特徴とするエンジン。 In an engine configured to extend an oil detection rod tube into which an oil inspection rod is inserted to the side of the engine and measure the amount of lubricating oil stored in the oil pan with the oil detection rod,
An engine characterized in that an upper portion of the oil inspection rod tube is disposed above the lubricating oil surface, and an upper portion of the oil inspection rod tube and a portion above the lubricating oil surface of the crankcase are communicated by a tubular member. .
前記検油棒管内からクランクケース内に管状部材を挿通し、該管状部材の両端を潤滑油面よりも上方に配置したことを特徴とするエンジン。 In an engine configured to extend an oil detection rod tube into which an oil inspection rod is inserted to the side of the engine and measure the amount of lubricating oil stored in the oil pan with the oil detection rod,
An engine characterized in that a tubular member is inserted into the crankcase from the oil inspection rod tube, and both ends of the tubular member are disposed above the lubricating oil surface.
前記検油棒管に検油棒の着脱状態を検知する検知手段を設け、該検知手段とエンジン内の圧力を開放する弁とが連動するように構成したことを特徴とするエンジン。 In an engine configured to extend an oil detection rod tube into which an oil inspection rod is inserted to the side of the engine and measure the amount of lubricating oil stored in the oil pan with the oil detection rod,
An engine characterized in that a detecting means for detecting an attaching / detaching state of the oil detecting rod is provided in the oil detecting rod tube, and the detecting means and a valve for releasing the pressure in the engine are interlocked.
The engine according to claim 3, wherein a valve for releasing the pressure in the engine is constituted by an electromagnetic valve, and the valve and the detection means are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122835A JP2007292003A (en) | 2006-04-27 | 2006-04-27 | Engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122835A JP2007292003A (en) | 2006-04-27 | 2006-04-27 | Engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2007292003A true JP2007292003A (en) | 2007-11-08 |
Family
ID=38762852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006122835A Pending JP2007292003A (en) | 2006-04-27 | 2006-04-27 | Engine |
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| Country | Link |
|---|---|
| JP (1) | JP2007292003A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776003B (en) * | 2010-02-23 | 2012-08-08 | 北汽福田汽车股份有限公司 | Oil dipstick assembly |
| US20160187178A1 (en) * | 2014-12-30 | 2016-06-30 | Kawasaki Jukogyo Kabushiki Kaisha | Oil level detector |
| CN108996064A (en) * | 2018-08-20 | 2018-12-14 | 中国石油工程建设有限公司 | For installing the device of limit switch |
-
2006
- 2006-04-27 JP JP2006122835A patent/JP2007292003A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776003B (en) * | 2010-02-23 | 2012-08-08 | 北汽福田汽车股份有限公司 | Oil dipstick assembly |
| US20160187178A1 (en) * | 2014-12-30 | 2016-06-30 | Kawasaki Jukogyo Kabushiki Kaisha | Oil level detector |
| US9778087B2 (en) * | 2014-12-30 | 2017-10-03 | Kawasaki Jukogyo Kabushiki Kaisha | Oil level detector |
| CN108996064A (en) * | 2018-08-20 | 2018-12-14 | 中国石油工程建设有限公司 | For installing the device of limit switch |
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