JP4512015B2 - Oil sensor mounting structure - Google Patents

Oil sensor mounting structure Download PDF

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JP4512015B2
JP4512015B2 JP2005261588A JP2005261588A JP4512015B2 JP 4512015 B2 JP4512015 B2 JP 4512015B2 JP 2005261588 A JP2005261588 A JP 2005261588A JP 2005261588 A JP2005261588 A JP 2005261588A JP 4512015 B2 JP4512015 B2 JP 4512015B2
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oil
sensor mounting
sensor
engine
oil pan
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JP2007071170A (en
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一人 山根
正人 松木
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to EP11176729.9A priority patent/EP2385368B1/en
Priority to US11/517,584 priority patent/US7263964B2/en
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Description

本発明は、エンジンのシリンダブロックの下方に位置してエンジンオイルを貯留するオイルパンの底部に設けたセンサ取付開口にエンジンオイルのパラメータを検出するオイルセンサを取り付けるオイルセンサの取付構造に関する。   The present invention relates to an oil sensor mounting structure in which an oil sensor for detecting a parameter of engine oil is mounted in a sensor mounting opening provided at the bottom of an oil pan that is located below an engine cylinder block and stores engine oil.

自動車用エンジンのエンジンオイルの交換時期を判定するために、オイルパンの底部にＰＨ値に基づいてエンジンオイルの劣化度合いを検出するオイル劣化センサを設けたものが、下記特許文献１により公知である。このオイル劣化センサは、内部にセンシングエレメントを収納したセンシング部と、このセンシング部を支持する取付部とを備えており、オイルパンの底部に形成した開口からセンシング部を上向きに挿入して取付部をオイルパンの底部に固定するようになっている。
特開２００３−８３９３５号公報 Patent Document 1 listed below discloses an oil deterioration sensor that detects the degree of engine oil deterioration based on the PH value at the bottom of an oil pan in order to determine the time for replacing engine oil in an automobile engine. . This oil deterioration sensor has a sensing part that houses a sensing element inside, and a mounting part that supports the sensing part, and the sensing part is inserted upward from an opening formed in the bottom of the oil pan. Is fixed to the bottom of the oil pan.
JP 2003-83935 A

ところで上記従来のオイル劣化センサは、オイルパンの内部に収納されるセンシング部と、オイルパンの外部に露出する取付部とからなるもので、センシング部の下端部近傍にエンジンオイルが流入するオイル孔が形成されている。従って、オイルパンにオイル劣化センサを取り付けるセンサ取付開口の周囲の肉厚が大きいと、オイルパン内のエンジンオイルを抜く際に、センサ取付開口内にスラッジ等の異物を含むエンジンオイルが残留してしまい、センシング部のオイル孔が異物で塞がれる等の問題が生じる可能性がある。   By the way, the conventional oil deterioration sensor is composed of a sensing part housed in the oil pan and a mounting part exposed to the outside of the oil pan, and an oil hole into which engine oil flows near the lower end of the sensing part. Is formed. Therefore, if the wall thickness around the sensor mounting opening that attaches the oil deterioration sensor to the oil pan is large, engine oil that contains foreign matter such as sludge remains in the sensor mounting opening when the engine oil is drained from the oil pan. Therefore, there may be a problem that the oil hole of the sensing unit is blocked by foreign matter.

本発明は前述の事情に鑑みてなされたもので、エンジンのオイルパンの底部にオイルセンサを取り付けるセンサ取付開口にスラッジ等の異物が残留しないようにすることを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to prevent foreign matters such as sludge from remaining in a sensor mounting opening for mounting an oil sensor on the bottom of an oil pan of an engine.

上記目的を達成するために、請求項１に記載された発明によれば、エンジンのシリンダブロックの下方に位置してエンジンオイルを貯留するオイルパンの底部に設けたセンサ取付開口にエンジンオイルのパラメータを検出するオイルセンサを取り付けるオイルセンサの取付構造であって、前記オイルパンは前記センサ取付開口が形成された浅底部と、前記浅底部よりも下方に位置する深底部とからなり、前記オイルパンの底部上面に前記センサ取付開口から前記深底部へと延びるオイル逃がし溝を形成したことを特徴とするオイルセンサの取付構造が提案される。 To achieve the above object, according to according to the invention described in claim 1, the cylinder block of the engine of the engine oil to the sensor mounting opening provided in the bottom of the oil pan for reserving an engine oil located below An oil sensor mounting structure for mounting an oil sensor for detecting a parameter, wherein the oil pan includes a shallow bottom portion in which the sensor mounting opening is formed and a deep bottom portion located below the shallow bottom portion, An oil sensor mounting structure is proposed in which an oil relief groove extending from the sensor mounting opening to the deep bottom is formed on the top surface of the bottom of the pan.

また請求項２に記載された発明によれば、請求項１の構成に加えて、前記オイル逃がし溝は前記センサ取付開口側の上流端から下流端に向けて単調に下り傾斜することを特徴とするオイルセンサの取付構造が提案される。 According to a second aspect of the present invention, in addition to the configuration of the first aspect , the oil relief groove is monotonously inclined downward from the upstream end on the sensor mounting opening side toward the downstream end. An oil sensor mounting structure is proposed.

また請求項３に記載された発明によれば、請求項１または請求項２の構成に加えて、前記深底部の近傍にオイルドレン孔を形成したことを特徴とするオイルセンサの取付構造が提案される。 According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, an oil sensor mounting structure in which an oil drain hole is formed in the vicinity of the deep bottom portion is proposed. Is done.

尚、実施例のオイルレベルセンサ１２は本発明のオイルセンサに対応し、実施例の最下部１１ｂは本発明の深底部に対応し、実施例のセンサ取付部１１ｃは本発明の浅底部に対応する。   The oil level sensor 12 of the embodiment corresponds to the oil sensor of the present invention, the lowermost portion 11b of the embodiment corresponds to the deep bottom portion of the present invention, and the sensor mounting portion 11c of the embodiment corresponds to the shallow bottom portion of the present invention. To do.

本発明によれば、オイルパンにセンサ取付開口が形成された浅底部と、この浅底部よりも下方に位置する深底部とを設け、オイルパンの底部上面に浅底部のセンサ取付開口から深底部へと延びるオイル逃がし溝を形成したので、オイルパン内のエンジンオイルを抜くときにセンサ取付開口に溜まったエンジンオイルをオイル逃がし溝を通して排出することができ、センサ取付開口にスラッジ等の異物が残留するのを防止することができる。 According to the present invention , a shallow bottom portion having a sensor mounting opening formed in the oil pan and a deep bottom portion positioned below the shallow bottom portion are provided, and a deep bottom portion from the shallow bottom sensor mounting opening is provided on the bottom surface of the oil pan. Since the oil relief groove extending to the oil pan is formed, the engine oil that has accumulated in the sensor mounting opening when the engine oil in the oil pan is pulled out can be discharged through the oil relief groove, and foreign matter such as sludge remains in the sensor mounting opening. Can be prevented.

また特に請求項２の発明によれば、オイル逃がし溝がセンサ取付開口側の上流端から下流端に向けて単調に下り傾斜するので、センサ取付開口に溜まったスラッジ等の異物を含むエンジンオイルをオイル逃がし溝を通してスムーズに排出することができる。 In particular , according to the invention of claim 2, since the oil relief groove is inclined monotonously downward from the upstream end toward the downstream end on the sensor mounting opening side, engine oil containing foreign matter such as sludge accumulated in the sensor mounting opening is removed. It can be discharged smoothly through the oil relief groove.

また特に請求項３の発明によれば、オイルパンの深底部の近傍にオイルドレン孔を形成したので、センサ取付開口から流出したスラッジ等の異物を含むエンジンオイルをオイルドレン孔から確実に排出することができる。 In particular , according to the invention of claim 3 , since the oil drain hole is formed in the vicinity of the deep bottom portion of the oil pan, engine oil including foreign matters such as sludge flowing out from the sensor mounting opening is surely discharged from the oil drain hole. be able to.

以下、本発明の実施形態を、添付図面に示した本発明の実施例に基づいて説明する。   Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

図１〜図７は本発明の一実施例を示すもので、図１はエンジンのオイルパンの縦断面図（図３の１−１線断面図）、図２はオイルパンの下面を示す図（図１の２方向矢視図）、図３はオイルパンの上面を示す図（図１の３方向矢視図）、図４は図１の要部拡大図、図５は図４の５−５線断面図、図６は図２の６方向矢視図、図７は図３の７方向矢視図である。   1 to 7 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of an oil pan of an engine (a sectional view taken along line 1-1 of FIG. 3), and FIG. 2 is a view showing a lower surface of the oil pan. 3 is a view showing the upper surface of the oil pan (viewed in the three-direction arrow of FIG. 1), FIG. 4 is an enlarged view of the main part of FIG. 1, and FIG. FIG. 6 is a sectional view taken along line -5, FIG. 6 is a view in the direction of arrow 6 in FIG. 2, and FIG. 7 is a view in the direction of arrow 7 in FIG.

自動車のエンジンのシリンダブロック１０（図１参照）の下面に取り付けられるオイルパン１１は、その上面開口の周縁にシリンダブロック１０への取付面１１ａを備えた容器状の部材であって、その長手方向一端側にオイルパン１１内のオイルレベルを検出するオイルレベルセンサ１２が設けられる。   An oil pan 11 to be attached to the lower surface of a cylinder block 10 (see FIG. 1) of an automobile engine is a container-like member having an attachment surface 11a to the cylinder block 10 at the periphery of the upper surface opening thereof. An oil level sensor 12 that detects the oil level in the oil pan 11 is provided on one end side.

オイルパン１１の底部のうち、長手方向中央部に高さが最も低い最下部１１ｂが設けられており、この最下部１１ｂに隣接して一段高くなった部分にセンサ取付部１１ｃが設けられる。センサ取付部１１ｃは、最下部１１ｂを含むオイルパン１１の底面の他の部分に比べて肉厚が厚くなっており、その中央に円形のセンサ取付開口１１ｄが形成される。また最下部１１ｂを挟んでセンサ取付部１１ｃの反対側の近傍に、オイルパン１１内のエンジンオイルを抜くためのオイルドレン孔１１ｅが形成される。   Of the bottom part of the oil pan 11, a lowermost part 11b having the lowest height is provided at the central part in the longitudinal direction, and a sensor attachment part 11c is provided at a part that is higher by one step adjacent to the lowermost part 11b. The sensor attachment part 11c is thicker than the other part of the bottom surface of the oil pan 11 including the lowermost part 11b, and a circular sensor attachment opening 11d is formed at the center thereof. An oil drain hole 11e for draining engine oil in the oil pan 11 is formed in the vicinity of the opposite side of the sensor mounting portion 11c across the lowermost portion 11b.

オイルパン１１の下面にはセンサ取付開口１１ｄの周囲を囲むように環状のリブ１１ｆが突設されており、このリブ１１ｆの４カ所にボス１１ｇ…が形成される。またオイルパン１１の上面にはセンサ取付開口１１ｄの周囲を囲むように３個のボス１１ｈ…が突設される。更に、オイルパン１１の上面には、センサ取付開口１１ｄの周囲を囲む厚肉のセンサ取付部１１ｃを横切るように、断面台形のオイル逃がし溝１１ｉが形成される。このオイル逃がし溝１１ｉの上流端は、センサ取付開口１１ｄに連通しており、またその下流端はオイルパン１１の最下部１１ｂに向かって開口する。 An annular rib 11f protrudes from the lower surface of the oil pan 11 so as to surround the sensor mounting opening 11d, and bosses 11g are formed at four positions of the rib 11f. Further, three bosses 11h are projected from the upper surface of the oil pan 11 so as to surround the periphery of the sensor mounting opening 11d. Further, an oil relief groove 11i having a trapezoidal cross section is formed on the upper surface of the oil pan 11 so as to cross the thick sensor mounting portion 11c surrounding the sensor mounting opening 11d. The upstream end of the oil escape grooves 11i are communicated to the sensor mounting hole 11d, and whose downstream end is open toward the bottom 11b of the oil pan 11.

オイルレベルセンサ１２は、平面視で六角形のボックス状に形成された取付部１３と、取付部１３の中心から上方に向けて延びるタワー状のセンシング部１４とを備える。取付部１３の上面にセンシング部１４を囲むように突設した３個の突起１３ａ…の外周面がオイルパン１１のセンサ取付開口１１ｄに嵌合した状態で、取付部１３を下から上に貫通した３本のボルト１５…がセンサ取付開口１１ｄの周囲を囲む３個のボス１１ｈ…に螺合することで、オイルレベルセンサ１２がオイルパン１１に固定される。このとき、センサ取付開口１１ｄの外周部の下面とオイルレベルセンサ１２の取付部１３の上面との間に、エンジンオイルの漏れを防止するシール部材１６が挟持される。   The oil level sensor 12 includes a mounting portion 13 formed in a hexagonal box shape in plan view, and a tower-shaped sensing portion 14 extending upward from the center of the mounting portion 13. The three protrusions 13a... Projecting from the upper surface of the attachment portion 13 so as to surround the sensing portion 14 are fitted in the sensor attachment opening 11d of the oil pan 11 and penetrate the attachment portion 13 from below to above. The three bolts 15 are screwed into the three bosses 11h surrounding the sensor mounting opening 11d, whereby the oil level sensor 12 is fixed to the oil pan 11. At this time, a seal member 16 for preventing leakage of engine oil is sandwiched between the lower surface of the outer peripheral portion of the sensor mounting opening 11d and the upper surface of the mounting portion 13 of the oil level sensor 12.

オイルパン１１の下面に突設した環状のリブ１１ｆの下端に板状のカバープレート１７が当接し、４個のボス１１ｇ…に螺合する４本のボルト１８…で固定される。従って、オイルレベルセンサ１２の取付部１３は、オイルパン１１のセンサ取付部１１ｃおよびリブ１１ｆによって囲まれた凹部１１ｊに収納され、カバープレート１７によって下方から覆われる。カバープレート１７には水抜き用の孔１７ａ…が４個形成される。   A plate-like cover plate 17 is brought into contact with the lower end of an annular rib 11f protruding from the lower surface of the oil pan 11, and is fixed by four bolts 18 that are screwed into the four bosses 11g. Therefore, the mounting portion 13 of the oil level sensor 12 is housed in the recess 11j surrounded by the sensor mounting portion 11c and the rib 11f of the oil pan 11, and is covered from below by the cover plate 17. Four holes 17a for draining are formed in the cover plate 17.

オイルレベルセンサ１２のセンシング部１４は中空のカバー部材１９を備えており、その下端にオイルパン１１内のエンジンオイルに連通する横長のスリット状のオイル孔１９ａ（図４参照）が形成されており、またカバー部材１９の上端にはオイルパン１１内の空気に連通する空気孔１９ｂ（図４参照）が形成される。従って、センシング部１４のカバー部材１９内のオイルレベルは、オイルパン１１内のオイルレベルに一致するように上下する。   The sensing part 14 of the oil level sensor 12 includes a hollow cover member 19, and a horizontally long slit-shaped oil hole 19 a (see FIG. 4) communicating with the engine oil in the oil pan 11 is formed at the lower end thereof. Further, an air hole 19b (see FIG. 4) communicating with the air in the oil pan 11 is formed at the upper end of the cover member 19. Therefore, the oil level in the cover member 19 of the sensing unit 14 rises and falls to match the oil level in the oil pan 11.

オイルレベルセンサ１２のセンシング部１４のカバー部材１９の内部に板状のセンシングエレメント２０（図４参照）が配置される。センシングエレメント２０に通電して発熱させることで該センシングエレメント２０をオイル温度よりも例えば１０°Ｃ高い温度まで加熱した後、その温度が例えば５°Ｃ下がるまでの時間を計測する。オイルレベルが高いときにはセンシングエレメント２０からエンジンオイルへの放熱が促進されて温度が早く低下し、逆にオイルレベルが低いときにはセンシングエレメント２０からエンジンオイルへの放熱が抑制されて温度が緩慢に低下することで、オイルパン１１内のオイルレベルを検出することができる。   A plate-shaped sensing element 20 (see FIG. 4) is disposed inside the cover member 19 of the sensing unit 14 of the oil level sensor 12. By energizing the sensing element 20 to generate heat, the sensing element 20 is heated to a temperature that is, for example, 10 ° C. higher than the oil temperature, and then the time until the temperature drops, for example, 5 ° C. is measured. When the oil level is high, heat dissipation from the sensing element 20 to the engine oil is promoted and the temperature decreases quickly. Conversely, when the oil level is low, heat dissipation from the sensing element 20 to the engine oil is suppressed and the temperature slowly decreases. Thus, the oil level in the oil pan 11 can be detected.

オイルレベルセンサ１２の取付部１３から延びるハーネス２１（図６参照）が、オイルパン１１のリブ１１ｆの切欠に嵌合するグロメット２２（図６参照）を貫通して外部に引き出される。   A harness 21 (see FIG. 6) extending from the mounting portion 13 of the oil level sensor 12 passes through a grommet 22 (see FIG. 6) that fits into a notch of the rib 11f of the oil pan 11 and is pulled out.

図１および図４から明らかなように、オイルパン１１の最下部１１ｂの下面に対してオイルレベルセンサ１２の最下部（つまり取付部１３の下面）を距離αだけ高い位置とし、またオイルパン１１の下面に露出するオイルレベルセンサ１２の取付部１３を凹部１１ｊに収納して外周を環状のリブ１１ｆで囲み、かつオイルレベルセンサ１２の取付部１３の下面をカバープレート１７で覆ったことにより、エンジンを床面に直置きしたときにエンジンの重量がオイルレベルセンサ１２の取付部１３に直接加わるのを防止することができ、しかもエンジンを車体に搭載した状態で飛び石との衝突時、縁石への乗り上げ時、ジャッキアップ時等にオイルレベルセンサ１２の取付部１３を損傷から保護することができる。   As is clear from FIGS. 1 and 4, the lowermost part of the oil level sensor 12 (that is, the lower surface of the mounting portion 13) is positioned higher than the lower surface of the lowermost part 11 b of the oil pan 11 by a distance α. The mounting portion 13 of the oil level sensor 12 exposed on the lower surface of the oil level sensor 12 is housed in the recess 11j, the outer periphery is surrounded by the annular rib 11f, and the lower surface of the mounting portion 13 of the oil level sensor 12 is covered with the cover plate 17. When the engine is placed directly on the floor, the weight of the engine can be prevented from being directly applied to the mounting portion 13 of the oil level sensor 12, and when the engine is mounted on the vehicle body, when the engine collides with a stepping stone, It is possible to protect the mounting portion 13 of the oil level sensor 12 from damage when riding up or jacking up.

またオイルパン１１の最下部１１ｂの下面とカバープレート１７の下面とが同じ高さにあって同一平面上に位置しているので、エンジンを床面に直置きしたときに、その重量をオイルパン１１の最下部１１ｂの下面とカバープレート１７の下面とで支持して姿勢を安定させることができる。   Further, since the lower surface of the lowermost part 11b of the oil pan 11 and the lower surface of the cover plate 17 are at the same height and are located on the same plane, when the engine is placed directly on the floor surface, the weight of the oil pan 11 11 can be supported by the lower surface of the lowermost part 11b and the lower surface of the cover plate 17 to stabilize the posture.

ところで、オイルパン１１内のエンジンオイルを交換のためにオイルドレン孔１１ｅから抜いたときに、厚肉のセンサ取付部１１ｃに囲まれたセンサ取付開口１１ｄの内部にエンジンオイルが残留する可能性がある。このとき残留したエンジンオイルにスラッジ等の異物が含まれていると、その異物がセンシング部１４のカバー部材１９のオイル孔１９ａに詰まってしまう可能性がある。しかしながら本実施例によれば、センサ取付開口１１ｄを囲む厚肉のセンサ取付部１１ｃにオイル逃がし溝１１ｉを形成したので、センサ取付開口１１ｄの内部に残留したエンジンオイルをオイル逃がし溝１１ｉを通して最下部１１ｂに流出させ、最下部１１ｂの近傍に形成したオイルドレン孔１１ｅからオイルパン１１の外部に排出することができる。特に、オイル逃がし溝１１ｉはセンサ取付開口１１ｄから最下部１１ｂに向けて単調に下り傾斜しているので、異物を効果的に排出することができる。   By the way, when the engine oil in the oil pan 11 is removed from the oil drain hole 11e for replacement, the engine oil may remain in the sensor mounting opening 11d surrounded by the thick sensor mounting portion 11c. is there. At this time, if the remaining engine oil contains foreign matter such as sludge, the foreign matter may be clogged in the oil hole 19 a of the cover member 19 of the sensing unit 14. However, according to the present embodiment, the oil escape groove 11i is formed in the thick sensor attachment portion 11c surrounding the sensor attachment opening 11d. The oil can be discharged to the outside of the oil pan 11 through an oil drain hole 11e formed in the vicinity of the lowermost part 11b. In particular, since the oil relief groove 11i is inclined monotonously downward from the sensor mounting opening 11d toward the lowermost part 11b, foreign matter can be effectively discharged.

以上、本発明の実施例を詳述したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.

例えば、実施例ではエンジンオイルのレベルを検出するオイルレベルセンサ１２について説明したが、本発明はエンジンオイルの温度や劣化度合いを検出する他の任意のオイルセンサに対して適用することができる。   For example, in the embodiment, the oil level sensor 12 that detects the level of the engine oil has been described. However, the present invention can be applied to any other oil sensor that detects the temperature and the degree of deterioration of the engine oil.

またオイル逃がし溝１１ｉは溝の上方を覆われたトンネル状の連通路であっても良い。   The oil relief groove 11i may be a tunnel-shaped communication path covered above the groove.

エンジンのオイルパンの縦断面図（図３の１−１線断面図）Longitudinal sectional view of engine oil pan (sectional view taken along line 1-1 in FIG. 3) オイルパンの下面を示す図（図１の２方向矢視図）The figure which shows the lower surface of an oil pan (2 direction arrow line view of FIG. 1) オイルパンの上面を示す図（図１の３方向矢視図）The figure which shows the upper surface of an oil pan (3 direction arrow line view of FIG. 1) 図１の要部拡大図1 is an enlarged view of the main part of FIG. 図４の５−５線断面図Sectional view along line 5-5 in FIG. 図２の６方向矢視図6 direction arrow view of FIG. 図３の７方向矢視図7 direction arrow view of FIG.

１０ シリンダブロック
１１ オイルパン
１１ｂ 最下部（深底部）
１１ｃ センサ取付部（浅底部）
１１ｄ センサ取付開口
１１ｅ オイルドレン孔
１１ｉ オイル逃がし溝
１２ オイルレベルセンサ（オイルセンサ）
１３ 取付部
１４ センシング部
１９ａ オイル孔 10 Cylinder block 11 Oil pan 11b Bottom (deep bottom)
11c Sensor mounting part (shallow bottom)
11d Sensor mounting opening 11e Oil drain hole 11i Oil relief groove 12 Oil level sensor (oil sensor)
13 Mounting part 14 Sensing part 19a Oil hole

Claims (3)

エンジンのシリンダブロック（１０）の下方に位置してエンジンオイルを貯留するオイルパン（１１）の底部に設けたセンサ取付開口（１１ｄ）にエンジンオイルのパラメータを検出するオイルセンサ（１２）を取り付けるオイルセンサの取付構造であって、
前記オイルパン（１１）は前記センサ取付開口（１１ｄ）が形成された浅底部（１１ｃ）と、前記浅底部（１１ｃ）よりも下方に位置する深底部（１１ｂ）とからなり、前記オイルパン（１１）の底部上面に前記センサ取付開口（１１ｄ）から前記深底部（１１ｂ）へと延びるオイル逃がし溝（１１ｉ）を形成したことを特徴とするオイルセンサの取付構造。 Positioned below the cylinder block of the engine (10) mounting the oil sensor (12) for detecting a parameter of the engine oil in the sensor mounting opening (11d) provided in the bottom of the oil pan storing engine oil (11) Oil sensor mounting structure,
The oil pan (11) includes a shallow bottom portion (11c) in which the sensor mounting opening (11d) is formed, and a deep bottom portion (11b) positioned below the shallow bottom portion (11c). 11) An oil sensor mounting structure in which an oil relief groove (11i) extending from the sensor mounting opening (11d) to the deep bottom portion (11b) is formed on the upper surface of the bottom of 11). 前記オイル逃がし溝（１１ｉ）は前記センサ取付開口（１１ｄ）側の上流端から下流端に向けて単調に下り傾斜することを特徴とする、請求項１に記載のオイルセンサの取付構造。 2. The oil sensor mounting structure according to claim 1 , wherein the oil relief groove (11 i) is inclined monotonously downward from the upstream end toward the downstream end on the sensor mounting opening (11 d) side. 前記深底部（１１ｂ）の近傍にオイルドレン孔（１１ｅ）を形成したことを特徴とする、請求項１または請求項２に記載のオイルセンサの取付構造。 The oil sensor mounting structure according to claim 1 or 2 , wherein an oil drain hole (11e) is formed in the vicinity of the deep bottom portion (11b).
JP2005261588A 2005-09-09 2005-09-09 Oil sensor mounting structure Expired - Fee Related JP4512015B2 (en)

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JP2005261588A JP4512015B2 (en) 2005-09-09 2005-09-09 Oil sensor mounting structure
EP06018577A EP1762846B1 (en) 2005-09-09 2006-09-05 Oil sensor mounting structure
EP11176729.9A EP2385368B1 (en) 2005-09-09 2006-09-05 Oil sensor mounting structure
US11/517,584 US7263964B2 (en) 2005-09-09 2006-09-08 Oil sensor mounting structure

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JP6150828B2 (en) * 2015-02-26 2017-06-21 デンヨー株式会社 Oil drain part

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62240412A (en) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd Operation control device for engine
JPH116414A (en) * 1997-06-17 1999-01-12 Kubota Corp Engine equipped with oil level detection device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62240412A (en) * 1986-04-11 1987-10-21 Yamaha Motor Co Ltd Operation control device for engine
JPH116414A (en) * 1997-06-17 1999-01-12 Kubota Corp Engine equipped with oil level detection device

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