JP2013096238A - Oil pan structure - Google Patents

Oil pan structure Download PDF

Info

Publication number
JP2013096238A
JP2013096238A JP2011236820A JP2011236820A JP2013096238A JP 2013096238 A JP2013096238 A JP 2013096238A JP 2011236820 A JP2011236820 A JP 2011236820A JP 2011236820 A JP2011236820 A JP 2011236820A JP 2013096238 A JP2013096238 A JP 2013096238A
Authority
JP
Japan
Prior art keywords
oil pan
surface portion
pan structure
engine
portions
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
Application number
JP2011236820A
Other languages
Japanese (ja)
Inventor
Tomoji Kogo
智史 向後
Eiichiro Kurita
英一郎 栗田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP2011236820A priority Critical patent/JP2013096238A/en
Publication of JP2013096238A publication Critical patent/JP2013096238A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an oil pan structure capable of reducing noise by suppressing surface vibration due to vibration of an engine and resonance of engine sound and oil pump driving sound.SOLUTION: Inclined surface portions 2a, 2a are formed to be bent to an internal surface side and be connected to a bottom surface portion 4 in lower portions of side surface portions 2, 2 of an oil pan 1.

Description

本発明は、オイルパン構造に関するものである。   The present invention relates to an oil pan structure.

一般に、自動車のエンジンにおいては、シリンダブロックの下部に、エンジンオイルを溜めるオイルパンが設けられている。   Generally, in an automobile engine, an oil pan for storing engine oil is provided at a lower portion of a cylinder block.

図３及び図４は従来のオイルパンの一例を示すものであって、オイルパン１は、側面部２，２及び側面部３，３と底面部４とを有する深皿状に形成されており、エンジンのシリンダブロック５下部に取り付けられる。   3 and 4 show an example of a conventional oil pan. The oil pan 1 is formed in a deep dish shape having side portions 2 and 2 and side portions 3 and 3 and a bottom portion 4. It is attached to the lower part of the engine cylinder block 5.

尚、前述の如きオイルパンと関連する一般的技術水準を示すものとしては、例えば、特許文献１がある。   For example, Patent Document 1 shows a general technical level related to the oil pan as described above.

特開２００２−２２７６２６号公報JP 2002-227626 A

しかしながら、図３及び図４示されるような従来のオイルパン１では、側面部２，２と底面部４の平面部分が広いため、エンジンの振動に伴う面振動が生じやすく、騒音発生の原因になると共に、特に、底面部４は、エンジン音やオイルポンプ駆動音が共鳴し、騒音が大きくなるという欠点を有していた。   However, in the conventional oil pan 1 as shown in FIGS. 3 and 4, since the plane portions of the side surface portions 2 and 2 and the bottom surface portion 4 are wide, surface vibrations easily occur due to engine vibration, which may cause noise generation. At the same time, the bottom surface portion 4 has a drawback that engine noise and oil pump drive sound resonate to increase noise.

本発明は、斯かる実情に鑑み、エンジンの振動に伴う面振動、並びにエンジン音やオイルポンプ駆動音の共鳴を抑制し、騒音低減を図り得るオイルパン構造を提供しようとするものである。   In view of such circumstances, the present invention intends to provide an oil pan structure capable of suppressing noise by suppressing surface vibration accompanying engine vibration and resonance of engine sound and oil pump drive sound.

本発明は、側面部と底面部とを有する深皿状に形成され且つエンジンのシリンダブロック下部に取り付けられるオイルパン構造において、
前記側面部の下部に内面側へ屈曲して底面部につながる傾斜面部を形成したことを特徴とするオイルパン構造にかかるものである。 The present invention is an oil pan structure formed in a deep dish shape having a side surface portion and a bottom surface portion and attached to a lower portion of a cylinder block of an engine.
The oil pan structure is characterized in that an inclined surface portion connected to the bottom surface portion is formed at the lower portion of the side surface portion by bending toward the inner surface side.

上記手段によれば、以下のような作用が得られる。   According to the above means, the following operation can be obtained.

前述の如く、オイルパンの側面部の下部に、内面側へ屈曲して底面部につながる傾斜面部を形成すると、従来のオイルパンの場合、一方の側面部から底面部へつながる面の折り曲げ箇所が一箇所であったのが、二箇所に増えて面強度が増し、固有振動数が増加すると共に、側面部と底面部の平面部分が狭められるため、エンジンの振動に伴う面振動が生じにくくなり、騒音発生が抑えられると共に、前記底面部の平面部分の面積が減少することにより、エンジン音やオイルポンプ駆動音が共鳴しにくくなり、騒音が小さくなる。   As described above, when an inclined surface portion that is bent toward the inner surface side and is connected to the bottom surface portion is formed at the lower portion of the side surface portion of the oil pan, in the case of the conventional oil pan, the bent portion of the surface that is connected from one side surface portion to the bottom surface portion is formed. Although it was one place, it increased to two places, the surface strength increased, the natural frequency increased, and the plane part of the side part and the bottom part was narrowed, so the surface vibration accompanying the engine vibration is less likely to occur The generation of noise is suppressed, and the area of the flat surface portion of the bottom portion is reduced, so that the engine sound and the oil pump drive sound are less likely to resonate and the noise is reduced.

前記オイルパン構造においては、前記側面部及び傾斜面部に、外面側へ張り出し且つ上下方向へ延びるリブを形成することができ、このようにすると、側面部及び傾斜面部の肉厚を厚くせずに面強度を更に増加させることが可能となり、重量増加を回避しつつ騒音発生を抑える上で有効となる。   In the oil pan structure, the side surface portion and the inclined surface portion can be formed with ribs extending outward and extending in the vertical direction, and without doing so, the thickness of the side surface portion and the inclined surface portion is increased. The surface strength can be further increased, which is effective in suppressing noise generation while avoiding an increase in weight.

又、前記オイルパン構造においては、アルミニウムダイカストにて成形を行うよう構成すると、前記リブは溶接したりすることなく側面部及び傾斜面部形成することができ、好ましい。   Further, in the oil pan structure, it is preferable to form by aluminum die casting because the rib can be formed with a side surface portion and an inclined surface portion without being welded.

本発明のオイルパン構造によれば、エンジンの振動に伴う面振動、並びにエンジン音やオイルポンプ駆動音の共鳴を抑制し、騒音低減を図り得るという優れた効果を奏し得る。   According to the oil pan structure of the present invention, it is possible to achieve an excellent effect that noise can be reduced by suppressing surface vibration accompanying engine vibration and resonance of engine sound and oil pump drive sound.

本発明のオイルパン構造の実施例を示す斜視図である。It is a perspective view which shows the Example of the oil pan structure of this invention. 本発明のオイルパン構造の実施例を示す断面図であって、図１のＩＩ−ＩＩ矢視相当図である。It is sectional drawing which shows the Example of the oil pan structure of this invention, Comprising: It is the II-II arrow equivalent view of FIG. 従来のオイルパンの一例を示す斜視図である。It is a perspective view which shows an example of the conventional oil pan. 従来のオイルパンの一例を示す断面図であって、図３のＩＶ−ＩＶ矢視相当図である。It is sectional drawing which shows an example of the conventional oil pan, Comprising: It is an IV-IV arrow equivalent view of FIG.

以下、本発明の実施の形態を添付図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１及び図２は本発明のオイルパン構造の実施例であって、図中、図３及び図４と同一の符号を付した部分は同一物を表わしており、基本的な構成は図３及び図４に示す従来のものと同様であるが、本実施例の特徴とするところは、図１及び図２に示す如く、オイルパン１の側面部２，２の下部に、内面側へ屈曲して底面部４につながる傾斜面部２ａ，２ａを形成した点にある。   1 and 2 show an embodiment of an oil pan structure according to the present invention. In the figure, the same reference numerals as those in FIGS. 3 and 4 denote the same components, and the basic configuration is shown in FIG. 4 is similar to the conventional one shown in FIG. 4, but the feature of the present embodiment is that, as shown in FIG. 1 and FIG. Thus, the inclined surface portions 2a and 2a connected to the bottom surface portion 4 are formed.

本実施例の場合、前記側面部２，２及び傾斜面部２ａ，２ａに、外面側へ張り出し且つ上下方向へ延びるリブ２ｂを形成してある。   In the case of the present embodiment, ribs 2b projecting to the outer surface side and extending in the vertical direction are formed on the side surface portions 2, 2 and the inclined surface portions 2a, 2a.

又、本実施例のオイルパン１は、アルミニウムダイカストにて成形を行うよう構成してある。   Further, the oil pan 1 of the present embodiment is configured to be molded by aluminum die casting.

次に、上記実施例の作用を説明する。   Next, the operation of the above embodiment will be described.

前述の如く、オイルパン１の側面部２，２の下部に、内面側へ屈曲して底面部４につながる傾斜面部２ａ，２ａを形成すると、図３及び図４示されるような従来のオイルパン１の場合、一方の側面部２から底面部４へつながる面の折り曲げ箇所が一箇所であったのが、図２に示す如く、二箇所に増えて面強度が増し、固有振動数が増加すると共に、側面部２，２と底面部４の平面部分が狭められるため、エンジンの振動に伴う面振動が生じにくくなり、騒音発生が抑えられると共に、前記底面部４の平面部分の面積が減少することにより、エンジン音やオイルポンプ駆動音が共鳴しにくくなり、騒音が小さくなる。   As described above, when the inclined surface portions 2a and 2a that are bent to the inner surface side and are connected to the bottom surface portion 4 are formed at the lower portions of the side surface portions 2 and 2 of the oil pan 1, the conventional oil pan as shown in FIGS. In the case of 1, the bending portion of the surface connected from the one side surface portion 2 to the bottom surface portion 4 was one, but as shown in FIG. 2, the surface strength is increased and the natural frequency is increased to two locations. At the same time, since the plane portions of the side surface portions 2 and 2 and the bottom surface portion 4 are narrowed, it is difficult for surface vibration accompanying engine vibration to occur, noise generation is suppressed, and the area of the flat surface portion of the bottom surface portion 4 is reduced. This makes it difficult for the engine sound and the oil pump drive sound to resonate, reducing the noise.

本実施例の場合、前記側面部２，２及び傾斜面部２ａ，２ａに、外面側へ張り出し且つ上下方向へ延びるリブ２ｂを形成してあるため、該側面部２，２及び傾斜面部２ａ，２ａの肉厚を厚くせずに面強度を更に増加させることが可能となり、重量増加を回避しつつ騒音発生を抑える上で有効となっている。   In the case of the present embodiment, the side surface portions 2, 2 and the inclined surface portions 2a, 2a are formed with ribs 2b extending outward and extending in the vertical direction, so that the side surface portions 2, 2 and the inclined surface portions 2a, 2a are formed. It is possible to further increase the surface strength without increasing the wall thickness, and this is effective in suppressing noise generation while avoiding an increase in weight.

又、本実施例のオイルパン１は、アルミニウムダイカストにて成形を行うよう構成してあるため、前記リブ２ｂは溶接したりすることなく側面部２，２及び傾斜面部２ａ，２ａに形成することができ、好ましい。   Further, since the oil pan 1 of this embodiment is configured to be molded by aluminum die casting, the rib 2b is formed on the side surface portions 2, 2 and the inclined surface portions 2a, 2a without welding. This is preferable.

こうして、エンジンの振動に伴う面振動、並びにエンジン音やオイルポンプ駆動音の共鳴を抑制し、騒音低減を図り得る。   In this way, it is possible to reduce the noise by suppressing the surface vibration accompanying the vibration of the engine and the resonance of the engine sound and the oil pump driving sound.

尚、本発明のオイルパン構造は、上述の実施例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   It should be noted that the oil pan structure of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

１ オイルパン
２ 側面部
２ａ 傾斜面部
２ｂ リブ
３ 側面部
４ 底面部
５ シリンダブロック DESCRIPTION OF SYMBOLS 1 Oil pan 2 Side part 2a Inclined surface part 2b Rib 3 Side part 4 Bottom part 5 Cylinder block

Claims (3)

側面部と底面部とを有する深皿状に形成され且つエンジンのシリンダブロック下部に取り付けられるオイルパン構造において、
前記側面部の下部に内面側へ屈曲して底面部につながる傾斜面部を形成したことを特徴とするオイルパン構造。 In the oil pan structure formed in a deep dish shape having a side surface portion and a bottom surface portion and attached to the lower part of the engine cylinder block,
An oil pan structure characterized in that an inclined surface portion connected to the bottom surface portion is formed at the lower portion of the side surface portion by bending toward the inner surface side. 前記側面部及び傾斜面部に、外面側へ張り出し且つ上下方向へ延びるリブを形成した請求項１記載のオイルパン構造。   The oil pan structure according to claim 1, wherein ribs are formed on the side surface portion and the inclined surface portion so as to protrude to the outer surface side and extend in the vertical direction. アルミニウムダイカストにて成形を行うよう構成した請求項２記載のオイルパン構造。   The oil pan structure according to claim 2, wherein the oil pan structure is formed by aluminum die casting.
JP2011236820A 2011-10-28 2011-10-28 Oil pan structure Pending JP2013096238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011236820A JP2013096238A (en) 2011-10-28 2011-10-28 Oil pan structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011236820A JP2013096238A (en) 2011-10-28 2011-10-28 Oil pan structure

Publications (1)

Publication Number Publication Date
JP2013096238A true JP2013096238A (en) 2013-05-20

Family

ID=48618481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011236820A Pending JP2013096238A (en) 2011-10-28 2011-10-28 Oil pan structure

Country Status (1)

Country Link
JP (1) JP2013096238A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10450910B2 (en) 2017-05-12 2019-10-22 Toyota Jidosha Kabushiki Kaisha Internal combustion engine
US10494966B2 (en) 2017-05-12 2019-12-03 Toyota Jidosha Kabushiki Kaisha Internal combustion engine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175549U (en) * 1985-04-23 1986-11-01
JPS6245363U (en) * 1985-09-09 1987-03-19
JPS62171650U (en) * 1986-04-23 1987-10-30
JPS63154845A (en) * 1986-12-18 1988-06-28 Mazda Motor Corp Oil pan for engine
JPH05179921A (en) * 1991-12-27 1993-07-20 Mazda Motor Corp Oil pan structure
JPH08189417A (en) * 1994-11-12 1996-07-23 Yamaha Motor Co Ltd Four cycle engine for vehicle
JP2002364324A (en) * 2001-06-07 2002-12-18 Mitsubishi Motors Corp Oil pan
JP2009138716A (en) * 2007-12-10 2009-06-25 Mitsubishi Heavy Ind Ltd Oil pan structure and engine equipped therewith

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175549U (en) * 1985-04-23 1986-11-01
JPS6245363U (en) * 1985-09-09 1987-03-19
JPS62171650U (en) * 1986-04-23 1987-10-30
JPS63154845A (en) * 1986-12-18 1988-06-28 Mazda Motor Corp Oil pan for engine
JPH05179921A (en) * 1991-12-27 1993-07-20 Mazda Motor Corp Oil pan structure
JPH08189417A (en) * 1994-11-12 1996-07-23 Yamaha Motor Co Ltd Four cycle engine for vehicle
JP2002364324A (en) * 2001-06-07 2002-12-18 Mitsubishi Motors Corp Oil pan
JP2009138716A (en) * 2007-12-10 2009-06-25 Mitsubishi Heavy Ind Ltd Oil pan structure and engine equipped therewith

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10450910B2 (en) 2017-05-12 2019-10-22 Toyota Jidosha Kabushiki Kaisha Internal combustion engine
US10494966B2 (en) 2017-05-12 2019-12-03 Toyota Jidosha Kabushiki Kaisha Internal combustion engine

Similar Documents

Publication Publication Date Title
JP2011247226A (en) Chain case structure of engine
JP4853794B2 (en) Engine oil pan structure
JP6256453B2 (en) Engine piston structure
JP5208786B2 (en) Horizontal engine
JP2011074823A (en) Oil pan structure
JP2013096238A (en) Oil pan structure
JP5821521B2 (en) Powertrain equipment
JP2008185201A (en) Engine mount
JP6137144B2 (en) Suspension member
JP6214776B2 (en) Cylinder jacket support structure for high-speed marine diesel engines
JP5471368B2 (en) Internal combustion engine cylinder block
JP5269649B2 (en) Engine bracket
KR100892820B1 (en) Baffle plate for fuel tank
JP6594155B2 (en) Flywheel housing
JP2007032410A (en) Oil pan
JP2008184924A (en) Engine
JP2020105930A (en) Oil pan
JP2011032935A (en) Oil pan
JP2009287436A (en) Oil pan
JP2004353506A (en) Oil pan structure for engine
JP5263375B2 (en) undercover
JP6567980B2 (en) Transmission case
JP7043536B2 (en) Internal combustion engine oil pan
JP6408026B2 (en) Engine block and internal combustion engine equipped with the same
JP2019039394A (en) Oil pan

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140930

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150423

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150507

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150609

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151222

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20160510