JP2009243403A - Oil pan - Google Patents

Oil pan Download PDF

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Publication number
JP2009243403A
JP2009243403A JP2008092728A JP2008092728A JP2009243403A JP 2009243403 A JP2009243403 A JP 2009243403A JP 2008092728 A JP2008092728 A JP 2008092728A JP 2008092728 A JP2008092728 A JP 2008092728A JP 2009243403 A JP2009243403 A JP 2009243403A
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Prior art keywords
oil pan
oil
filter mounting
mounting portion
oil filter
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JP2008092728A
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JP5072683B2 (en
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Yoshimi Sato
芳美 佐藤
Naoki Ogura
直樹 小倉
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Daihatsu Motor Co Ltd
Toyota Motor Corp
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Daihatsu Motor Co Ltd
Toyota Motor Corp
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  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil pan can prevent the splash of oil from an oil filter mounting part without a risk of damaging the oil filter mounting part set up in the oil pan in collision of a vehicle. <P>SOLUTION: The oil pan 1 is provided with the oil filter mounting part 8 downward opened on one end of a crank axial direction of the oil pan 1, and an auxiliary machine mounting part 7 disposed adjacently to the oil filter mounting part 8 in a vehicle longitudinal direction. In the oil filter mounting part 8, a part of a peripheral wall thereof is arranged to face one end wall 2 of the oil pan 1, and a reinforcement rib 9 is protrudingly provided on an outer surface thereof so as to be disposed across the part of the peripheral wall of the oil filter mounting part 8 facing the one end wall 2 of the oil pan 1 in the vehicle longitudinal direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明はオイルパンに関し、特に下向きに開口したオイルフィルタ取付部と補機取付部が車両前後方向に隣接して配設されたオイルパンに関するものである。   The present invention relates to an oil pan, and more particularly to an oil pan in which an oil filter mounting portion and an accessory mounting portion that are opened downward are disposed adjacent to each other in the vehicle longitudinal direction.

エンジンのオイルパンにおいて、オイルフィルタを取り付けるオイルフィルタ取付部を設けたものは従来から知られている（例えば、特許文献１参照）。また、オイルパンに補機を取り付けるようにした構造のものも知られている（例えば、特許文献２参照）。
特開平１０−２２０２１４号公報 実開平３−４２０５０号公報 2. Description of the Related Art Conventionally, an engine oil pan provided with an oil filter mounting portion for mounting an oil filter is known (see, for example, Patent Document 1). Moreover, the thing of the structure which attached the auxiliary machine to the oil pan is also known (for example, refer patent document 2).
Japanese Patent Laid-Open No. 10-220214 Japanese Utility Model Publication No. 3-42050

ところで、オイルパンにオイルフィルタ取付部を配設する場合、エンジンのクランク軸心方向一端側に配設されるタイミングチェーン若しくはタイミングベルトを覆うフロントケースにオイルポンプを配設する構成では、オイルフィルタ取付部をオイルパンのクランク軸心方向の一端部に配設するのが好適であり、またオイルフィルタの交換を容易に行えるようにするために下向きに開口した構成とするのが好適である。   By the way, when the oil filter mounting portion is disposed on the oil pan, in the configuration in which the oil pump is disposed on the front case covering the timing chain or the timing belt disposed at one end side in the crankshaft direction of the engine, It is preferable to dispose the portion at one end of the oil pan in the direction of the crankshaft, and it is preferable that the oil pan be opened downward so that the oil filter can be easily replaced.

また、エンジンの補機も、その駆動系から当然のことながらエンジンのクランク軸心方向一端側に配設され、かつ何れかの補機、例えばエアコン用のコンプレッサーが、エンジン回りのレイアウトからオイルパンにオイルフィルタ取付部に隣接して配設されることがある。   Also, the engine auxiliary machine is naturally arranged on one end side in the crankshaft direction of the engine from the drive system, and any auxiliary machine, for example, a compressor for an air conditioner, is installed in the oil pan from the layout around the engine. May be disposed adjacent to the oil filter mounting portion.

このようにオイルパンのクランク軸心方向一端部に下向きに開口したオイルフィルタ取付部が配設されかつその側部に隣接して補機が配設されたエンジンを、そのクランク軸が車幅方向に沿うように車両に搭載した場合、オイルパンにオイルフィルタ取付部と補機が車両前後方向に隣接して配設された構成となる。   In this way, an engine in which an oil filter mounting portion that opens downward is disposed at one end portion in the crankshaft direction of the oil pan and an auxiliary machine is disposed adjacent to the side portion thereof, the crankshaft extends in the vehicle width direction. When mounted on the vehicle so as to follow, the oil filter mounting portion and the auxiliary device are disposed adjacent to the oil pan in the vehicle front-rear direction.

そのため、車両衝突時にコンプレッサー等の剛性の高い補機がオイルパンに向けて押し込まれ、オイルパンに車両前後方向に過大な圧縮荷重が作用し、オイルフィルタ取付部が破損する恐れが高く、かつオイルフィルタ取付部内には高圧状態のオイルが充満しているために、オイルフィルタ取付部が破損するとオイルが飛び散ってしまうという問題がある。   Therefore, a highly rigid auxiliary machine such as a compressor is pushed toward the oil pan at the time of a vehicle collision, an excessive compression load acts on the oil pan in the vehicle front-rear direction, and there is a high risk of damage to the oil filter mounting part. Since the filter mounting portion is filled with high-pressure oil, there is a problem that the oil scatters when the oil filter mounting portion is damaged.

本発明は、上記従来の問題点に鑑み、車両衝突時にオイルパンに設けられたオイルフィルタ取付部が破損する恐れがなく、オイルフィルタ取付部からオイルが飛び散るのを防止できるオイルパンを提供することを目的とする。   In view of the above-described conventional problems, the present invention provides an oil pan that can prevent oil from splashing from the oil filter mounting portion without the risk of damaging the oil filter mounting portion provided in the oil pan during a vehicle collision. With the goal.

本発明のオイルパンは、オイルパンのクランク軸心方向の一端部に下向きに開口するオイルフィルタ取付部を有し、このオイルフィルタ取付部に対して車両前後方向に隣接して補機の取付部を有するオイルパンにおいて、オイルフィルタ取付部は、その周壁の一部をオイルパンの一端壁に臨ませて配設し、かつオイルフィルタ取付部の周壁のオイルパンの一端壁に臨む部分を車両前後方向に跨ぐようにその外面に補強リブを突設したものである。   The oil pan of the present invention has an oil filter mounting portion that opens downward at one end portion in the direction of the crankshaft of the oil pan, and the auxiliary device mounting portion is adjacent to the oil filter mounting portion in the vehicle longitudinal direction. In the oil pan having an oil filter, the oil filter mounting portion is arranged with a part of the peripheral wall facing one end wall of the oil pan, and the portion facing the one end wall of the oil pan on the peripheral wall of the oil filter mounting portion Reinforcing ribs are provided on the outer surface so as to straddle the direction.

この構成によると、オイルフィルタ取付部の周壁のオイルパンの一端壁に臨む部分を車両前後方向に跨ぐようにその外面に補強リブを突設しているので、車両衝突時にオイルフィルタ取付部の車両前後方向に隣接して取付けられた補機にてオイルフィルタ取付部のオイルパンの一端壁に臨む部分に大きな衝撃荷重が負荷されても、補強リブにて十分な強度を確保することができてオイルフィルタ取付部が破損する恐れを無くすことができ、オイルフィルタ取付部からオイルが飛び散るのを防止することができる。また、倒立させて設置したシリンダブロックの接合面にシール材を塗布し、その上にオイルパンを載せて、シリンダブロックにオイルパンを組み付ける作業時に、補強リブがオイルパンの一端側で手をかけることができる取手として機能し、オイルパン組付作業の作業性を向上することができる。   According to this configuration, since the reinforcing rib protrudes on the outer surface of the peripheral wall of the oil filter mounting portion facing the one end wall of the oil pan in the vehicle front-rear direction, the oil filter mounting portion of the vehicle at the time of the vehicle collision Even if a large impact load is applied to the part of the oil filter mounting part facing the one end wall of the oil pan in the auxiliary machine installed adjacent in the front-rear direction, sufficient strength can be secured with the reinforcing rib. The possibility of damaging the oil filter mounting portion can be eliminated, and oil can be prevented from splashing from the oil filter mounting portion. Also, apply the sealing material to the joint surface of the cylinder block installed upside down, place the oil pan on it, and assemble the oil pan on the cylinder block. It can function as a handle that can be used to improve the workability of the oil pan assembly work.

本発明のオイルパンによれば、車両衝突時にオイルフィルタ取付部に車両前後方向に大きな衝撃荷重が負荷されても補強リブにて十分な強度を確保することができ、オイルフィルタ取付部が破損してオイルが飛び散るのを防止することができ、また補強リブがオイルパンの一端側で手をかけることができる取手として機能してオイルパン組付作業の作業性を向上することができる。   According to the oil pan of the present invention, even when a large impact load is applied to the oil filter mounting portion in the vehicle front-rear direction in the event of a vehicle collision, sufficient strength can be secured by the reinforcing rib, and the oil filter mounting portion is damaged. Thus, the oil can be prevented from splashing, and the reinforcing rib functions as a handle that can be put on one end side of the oil pan, so that the workability of the oil pan assembling work can be improved.

以下、本発明のオイルパンの一実施形態について、図１〜図４を参照して説明する。
図１〜図４において、１は、エンジンのシリンダブロック（図示せず）の下部に配設されるアルミダイキャスト製のオイルパンである。エンジンのクランク軸心方向に沿うオイルパン１の両側縁の上面には、シリンダブロック（図示せず）との接合面１ａが形成されている。オイルパン１のクランク軸心方向に対向する一端壁２は、両側の接合面１ａに連なる部分が最も高く中央部が低く凹入した形状に形成され、その上縁部外面に、タイミングベルト若しくはタイミングチェーンをカバーするフロントカバー（図示せず）の周縁部を接合する接合面２ａが形成されている。オイルパン１のクランク軸心方向に対向する他端壁３はトランスミッション（図示せず）の下部を接合するように構成されている。 Hereinafter, an embodiment of the oil pan of the present invention will be described with reference to FIGS.
1 to 4, reference numeral 1 denotes an aluminum die-cast oil pan disposed under a cylinder block (not shown) of an engine. Joining surfaces 1a with cylinder blocks (not shown) are formed on the upper surfaces of both side edges of the oil pan 1 along the crankshaft direction of the engine. One end wall 2 of the oil pan 1 facing in the direction of the crankshaft is formed in a shape in which a portion connected to the joint surface 1a on both sides is the highest and the center portion is recessed and is formed on the outer surface of the upper edge portion. A joining surface 2a for joining the peripheral edge of a front cover (not shown) that covers the chain is formed. The other end wall 3 facing the crankshaft center direction of the oil pan 1 is configured to join a lower portion of a transmission (not shown).

オイルパン１の一端部において、底壁１０ｃの一側部に開口部４が形成され、その下部に板金製のオイル溜め５を装着するように構成されている。オイルパン１の一端部の他側壁１０ｂには、エアコン用のコンプレッサーなどの補機６を取り付ける補機取付部７が設けられている。また、オイルパン１の一端部には、開口部４と補機取付部７との間に、下向きに開口したオイルフィルタ取付部８が形成されている。   At one end of the oil pan 1, an opening 4 is formed at one side of the bottom wall 10c, and a sheet metal oil sump 5 is attached to the lower part thereof. On the other side wall 10b of one end of the oil pan 1, an auxiliary machine mounting portion 7 for mounting an auxiliary machine 6 such as a compressor for an air conditioner is provided. An oil filter mounting portion 8 that opens downward is formed at one end of the oil pan 1 between the opening 4 and the accessory mounting portion 7.

オイルフィルタ取付部８は、上端閉鎖で、下端開放の円筒状に形成され、その下部開口から内部にオイルフィルタ（図示せず）を着脱自在に装着できるように構成されている。オイルフィルタ取付部８の周壁の一部は一端壁２に臨み、円弧状に突出する状態で一端壁２の一部を構成している。このオイルフィルタ取付部８の周壁のオイルパン１の一端壁２に臨む部分を車両前後方向に跨ぐようにオイルフィルタ取付部８の周壁外面から一体的に略円弧板状の補強リブ９が突設されている。具体的には、補強リブ９は、補機取付部７近傍のアイドラプーリ取付ボス２ｂとオイル溜め５を取り付けるフランジ部５ａとの間にわたって設けられている。   The oil filter mounting portion 8 is formed in a cylindrical shape with the upper end closed and the lower end opened, and is configured such that an oil filter (not shown) can be detachably attached to the inside from the lower opening. A part of the peripheral wall of the oil filter mounting portion 8 faces the one end wall 2 and constitutes a part of the one end wall 2 in a state of protruding in an arc shape. Reinforcing ribs 9 in the form of substantially arc plates project integrally from the outer surface of the peripheral wall of the oil filter mounting portion 8 so as to straddle the portion of the peripheral wall of the oil filter mounting portion 8 facing the one end wall 2 of the oil pan 1 in the vehicle longitudinal direction. Has been. Specifically, the reinforcing rib 9 is provided between the idler pulley mounting boss 2b in the vicinity of the accessory mounting portion 7 and the flange portion 5a to which the oil sump 5 is mounted.

また、オイルパン１の一端部の他側壁１０ｂにおける補機取付部７を形成した部分の内壁面と、オイルパン１の一端部の一側壁１０ａの内壁面との間を相互に連結する連結リブ１１が、開口部４を跨いで形成されている。連結リブ１１は、補機取付部７の一端壁２から離れている部位から一端壁２と平行に延出されて一側壁１０ａの対向した部位に接続され、開口部４を除いて一側壁１０ａと底壁１０ｃと他側壁１０ｂから一体的に突設されている。   Further, a connecting rib for mutually connecting the inner wall surface of the portion of the other side wall 10b of the oil pan 1 where the accessory mounting portion 7 is formed and the inner wall surface of the one side wall 10a of the one end portion of the oil pan 1 to each other. 11 is formed across the opening 4. The connecting rib 11 extends in parallel with the one end wall 2 from a portion away from the one end wall 2 of the accessory mounting portion 7 and is connected to the opposite portion of the one side wall 10a. And projecting integrally from the bottom wall 10c and the other side wall 10b.

以上の構成のオイルパン１を組み付けたエンジンは、クランク軸心方向を車幅方向に向けて車体に搭載され、コンプレッサーなどの補機６とオイルフィルタ取付部８とオイル溜め５が車両前後方向に互いに隣接して配置される。具体的には、オイル溜め５が車両前方で、コンプレッサーなどの補機６が車両後方側に位置し、それらの間にオイルフィルタ取付部８が位置している状態となる。   The engine assembled with the oil pan 1 having the above-described configuration is mounted on the vehicle body with the crankshaft center direction in the vehicle width direction, and an auxiliary machine 6 such as a compressor, an oil filter mounting portion 8 and an oil sump 5 are arranged in the vehicle longitudinal direction. Arranged adjacent to each other. Specifically, the oil sump 5 is in front of the vehicle, the auxiliary device 6 such as a compressor is located on the rear side of the vehicle, and the oil filter mounting portion 8 is located therebetween.

このような配置構成で車両が衝突した場合、コンプレッサーなどの剛性の高い補機６がオイルパン１に向けて押し込まれ、オイルパン１の補機取付部７に一側壁１０ａに向かう大きな衝撃荷重が作用し、オイルフィルタ取付部８のオイルパン１の一端壁２に臨む部分に大きな衝撃荷重が負荷されることになる。本実施形態では、オイルフィルタ取付部８の周壁のオイルパン１の一端壁２に臨む部分を車両前後方向に跨ぐようにその外面に補強リブ９が突設されているので、この補強リブ９にて十分な強度が確保され、オイルフィルタ取付部８が破損する恐れが無く、オイルフィルタ取付部８が破損して内部の高圧状態のオイルが外部に飛び散るのを防止することができる。   When the vehicle collides with such an arrangement, a highly rigid auxiliary machine 6 such as a compressor is pushed toward the oil pan 1, and a large impact load toward the one side wall 10 a is applied to the auxiliary machine mounting portion 7 of the oil pan 1. A large impact load is applied to the portion of the oil filter mounting portion 8 that faces the one end wall 2 of the oil pan 1. In the present embodiment, the reinforcing rib 9 protrudes from the outer surface of the peripheral wall of the oil filter mounting portion 8 facing the one end wall 2 of the oil pan 1 so as to straddle the vehicle longitudinal direction. Sufficient strength is ensured, the oil filter mounting portion 8 can be prevented from being damaged, and the oil filter mounting portion 8 can be prevented from being damaged and the internal high-pressure oil from being scattered outside.

また、オイルパン１の補機取付部７の一端壁２から離れた位置でも、一側壁１０ａ、底壁１０ｃ、及び他側壁１０ｂに一体的に設けられた連結リブ１１にて支持されているので、その間に開口部４が形成されていても強固に支持される。かくして、この部分でオイルパン１が変形してオイルフィルタ取付部８が影響を受けて破損する恐れも解消される。   Further, even at a position away from the one end wall 2 of the accessory mounting portion 7 of the oil pan 1, it is supported by the connecting ribs 11 provided integrally with the one side wall 10a, the bottom wall 10c, and the other side wall 10b. Even if the opening 4 is formed between them, it is firmly supported. Thus, the possibility that the oil pan 1 is deformed at this portion and the oil filter mounting portion 8 is affected and damaged is also eliminated.

また、このオイルパン１の構成によれば、シリンダブロック（図示せず）にオイルパン１を組み付ける作業時に、倒立させて設置したシリンダブロック（図示せず）の接合面やオイルパン１の接合面１ａにシール材を塗布し、シリンダブロック（図示せず）の接合面上にオイルパン１を載せる際に、補強リブ９がオイルパン１の一端側で手をかけることができる取手として使用することができるので、オイルパン１の組付作業の作業性を向上することができる。   In addition, according to the configuration of the oil pan 1, when the oil pan 1 is assembled to the cylinder block (not shown), the joint surface of the cylinder block (not shown) installed upside down or the joint surface of the oil pan 1 is installed. When a sealing material is applied to 1a and the oil pan 1 is placed on the joint surface of a cylinder block (not shown), the reinforcing rib 9 is used as a handle that can be put on one end of the oil pan 1. Therefore, the workability of the assembly work of the oil pan 1 can be improved.

本発明のオイルパンは、車両衝突時にオイルフィルタ取付部に車両前後方向に大きな衝撃荷重が負荷されても補強リブにて十分な強度を確保することができ、オイルフィルタ取付部が破損してオイルが飛び散るのを防止することができ、また補強リブがオイルパンの一端側で手をかけることができる取手として機能してオイルパン組付作業の作業性を向上することができるため、オイルパンに好適に利用できる。   The oil pan of the present invention can secure sufficient strength with the reinforcing rib even if a large impact load is applied to the oil filter mounting portion in the vehicle front-rear direction in the event of a vehicle collision. Can be prevented from splashing, and the reinforcing rib functions as a handle that can be put on one end of the oil pan to improve the workability of the oil pan assembly work. It can be suitably used.

本発明の一実施形態のオイルパンにおける一端部の斜視図。The perspective view of the one end part in the oil pan of one Embodiment of this invention. 同実施形態のオイルパンの平面図。The top view of the oil pan of the embodiment. 同実施形態のオイルパンの正面図。The front view of the oil pan of the embodiment. 同実施形態のオイルパンをオイル溜めを分解して示した斜視図。The perspective view which disassembled and showed the oil pan of the oil pan of the embodiment.

符号の説明Explanation of symbols

１ オイルパン
２ 一端壁
７ 補機取付部
８ オイルフィルタ取付部
９ 補強リブ DESCRIPTION OF SYMBOLS 1 Oil pan 2 One end wall 7 Auxiliary machine attachment part 8 Oil filter attachment part 9 Reinforcement rib

Claims (1)

オイルパンのクランク軸心方向の一端部に下向きに開口するオイルフィルタ取付部を有し、このオイルフィルタ取付部に対して車両前後方向に隣接して補機の取付部を有するオイルパンにおいて、オイルフィルタ取付部は、その周壁の一部をオイルパンの一端壁に臨ませて配設し、かつオイルフィルタ取付部の周壁のオイルパンの一端壁に臨む部分を車両前後方向に跨ぐようにその外面に補強リブを突設したことを特徴とするオイルパン。   In an oil pan having an oil filter mounting portion that opens downward at one end portion in the crankshaft direction of the oil pan and having an auxiliary device mounting portion adjacent to the oil filter mounting portion in the vehicle front-rear direction. The filter mounting portion is disposed so that a part of the peripheral wall faces one end wall of the oil pan, and the outer surface of the peripheral wall of the oil filter mounting portion faces the one end wall of the oil pan so as to straddle the vehicle longitudinal direction. An oil pan characterized by having reinforcing ribs projecting from it.
JP2008092728A 2008-03-31 2008-03-31 Oil pan Expired - Fee Related JP5072683B2 (en)

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JP2009243403A true JP2009243403A (en) 2009-10-22
JP5072683B2 JP5072683B2 (en) 2012-11-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2981699A1 (en) * 2011-10-19 2013-04-26 Peugeot Citroen Automobiles Sa Heat engine block, has spacer locally providing tightening of oil pan against casing cylinders, ensuring maintenance of filter cartridge and providing passage between oil filter cartridge and casing cylinders
CN108868953A (en) * 2017-05-12 2018-11-23 丰田自动车株式会社 Internal combustion engine
CN113153486A (en) * 2020-01-07 2021-07-23 本田技研工业株式会社 Lower structure of internal combustion engine

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Publication number Priority date Publication date Assignee Title
JPH10220214A (en) * 1997-02-12 1998-08-18 Daihatsu Motor Co Ltd Device for mounting oil filter on internal combustion engine
JP2000104523A (en) * 1998-09-25 2000-04-11 Daihatsu Motor Co Ltd Structure of cylinder block in internal combustion engine
JP2006097613A (en) * 2004-09-30 2006-04-13 Honda Motor Co Ltd Oil return passage structure of internal combustion engine
JP2006112435A (en) * 2005-12-08 2006-04-27 Honda Motor Co Ltd Auxiliary device mounting structure of internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220214A (en) * 1997-02-12 1998-08-18 Daihatsu Motor Co Ltd Device for mounting oil filter on internal combustion engine
JP2000104523A (en) * 1998-09-25 2000-04-11 Daihatsu Motor Co Ltd Structure of cylinder block in internal combustion engine
JP2006097613A (en) * 2004-09-30 2006-04-13 Honda Motor Co Ltd Oil return passage structure of internal combustion engine
JP2006112435A (en) * 2005-12-08 2006-04-27 Honda Motor Co Ltd Auxiliary device mounting structure of internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2981699A1 (en) * 2011-10-19 2013-04-26 Peugeot Citroen Automobiles Sa Heat engine block, has spacer locally providing tightening of oil pan against casing cylinders, ensuring maintenance of filter cartridge and providing passage between oil filter cartridge and casing cylinders
CN108868953A (en) * 2017-05-12 2018-11-23 丰田自动车株式会社 Internal combustion engine
CN108868953B (en) * 2017-05-12 2021-04-30 丰田自动车株式会社 Internal combustion engine
CN113153486A (en) * 2020-01-07 2021-07-23 本田技研工业株式会社 Lower structure of internal combustion engine
CN113153486B (en) * 2020-01-07 2022-11-29 本田技研工业株式会社 Lower structure of internal combustion engine

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