WO2014132674A1 - オイルシール - Google Patents
オイルシール Download PDFInfo
- Publication number
- WO2014132674A1 WO2014132674A1 PCT/JP2014/050042 JP2014050042W WO2014132674A1 WO 2014132674 A1 WO2014132674 A1 WO 2014132674A1 JP 2014050042 W JP2014050042 W JP 2014050042W WO 2014132674 A1 WO2014132674 A1 WO 2014132674A1
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- WO
- WIPO (PCT)
- Prior art keywords
- seal
- oil
- liquid
- pressure release
- space
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/322—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction perpendicular to the surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3228—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip formed by deforming a flat ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
Definitions
- the present invention relates to an oil seal, and more particularly to a two-pack type oil seal.
- the oil seal for example, a two-pack type oil seal provided between the outer periphery of the crankshaft of the engine and the inner periphery of the flywheel housing is known.
- This two-pack type oil seal seals engine oil supplied to the crankshaft and lubricating oil supplied to the flywheel side clutch disc, transmission, etc. by a pair of lips, and two kinds of oil From leaking to the other.
- Such a two-pack type oil seal has a spiral groove on the surface of both lips that contacts the crankshaft in order to push out the oil that is about to enter the space between the two lips.
- the oil that tries to enter the space between the two lips is pushed into the groove as the crankshaft rotates, and is pushed outward in a spiral shape as the crankshaft rotates.
- the air in the space is pushed together and the inside of the space becomes negative pressure, so both lips are pressed against the crankshaft and the oil seal wear is promoted. .
- the sealability and durability of the oil seal may be reduced. Therefore, in a two-pack type oil seal, a configuration in which a pressure release hole is provided in one lip, for example, a lip on the flywheel side is known (see, for example, Patent Documents 1 to 3).
- the oil seal described in Patent Document 1 includes a first seal that seals the flywheel side and a second seal that seals the crankshaft side.
- the first seal is provided with a communication hole for communicating the space surrounded by the first seal, the second seal, and the crankshaft with the space in the flywheel housing.
- the oil seal described in Patent Document 2 is also provided with a pair of seal members that are in contact with the crankshaft, and is configured to isolate the lubricating oil chamber from one to the other. Even in such an oil seal, a communication path is provided in one of the seal members, and the one isolated space communicates with the annular space between the seal members.
- the oil seal described in Patent Document 3 includes a pipe that communicates a space between a pair of lips and a space on a flywheel side (mission room).
- JP 2003-262275 A Japanese Utility Model Publication No. 60-112755 Japanese Utility Model Publication No. 60-84860
- An object of the present invention is to provide an oil seal that suppresses deterioration of the sealing performance due to wear and prevents the liquid in one isolated space from being discharged into the other isolated space.
- An oil seal according to a first aspect of the present invention is an oil seal that is provided at an outer peripheral position of a rotating shaft and seals two liquids of a first liquid and a second liquid, and seals the first liquid side of the rotating shaft.
- One seal, a second seal for sealing the second liquid side of the rotating shaft, and at least one of the first seal and the second seal, the first seal, the second seal A pressure relief hole for communicating a seal and a space surrounded by the rotation shaft with one of the first liquid side and the second liquid side, and disposed between the first seal and the second seal And a partition lip that divides the space in the axial direction of the rotating shaft.
- the pressure release hole is provided on a side of the first seal and the second seal that seals the first liquid or the second liquid having a low degree of contamination.
- the partition lip has a communication hole that communicates the space to be divided.
- the pressure release hole and the communication hole are displaced from each other from a position facing each other along the axis of the rotation shaft.
- the pressure release hole and the communication hole are provided on the upper side with respect to the axis of the rotary shaft that is substantially horizontal.
- the pressure release hole is provided on a side of the uppermost portion in the vertical direction that passes through the rotation direction of the rotary shaft, and the communication hole is located at a position facing the pressure release hole.
- the rotary shaft is provided so as to be shifted to the near side in the rotation direction.
- the first liquid or the second liquid is provided from the pressure release hole by providing the first seal, the second seal, and the partition lip that divides the space surrounded by the rotation shaft in the axial direction of the rotation shaft. Even if the liquid enters the space, the liquid that has entered can be guided and discharged to either side in the axial direction by the partition lip. For this reason, it is possible to prevent negative pressure in the space, and even in a configuration provided with a pressure release hole for preventing negative pressure, the first liquid or the second liquid that has entered the space from the pressure release hole The liquid can be discharged to the liquid side and mixing of the second liquid and the first liquid can be prevented. Furthermore, since the first liquid or the second liquid is discharged to the original liquid side, it is possible to prevent the first liquid or the second liquid from being insufficient.
- the first liquid or the second liquid having a low degree of contamination is provided by providing the pressure release hole in the first seal or the second seal that seals the first liquid or the second liquid having a lower degree of contamination.
- the characteristics of the first liquid or the second liquid having a low degree of contamination can be favorably maintained.
- the partition lip by providing the partition lip with the communication hole that communicates the space divided by the partition lip, even when the pressure release hole is provided only in the first seal or the second seal, the space is divided by the partition lip. It is possible to prevent both spaces from becoming negative pressure, and it is possible to prevent the first seal or the second seal from being pressed against the rotating shaft by negative pressure and being worn.
- the pressure relief hole and the communication hole are displaced from each other in the rotation direction of the rotation shaft, the radial direction, or both, so that the first liquid or the second liquid that has entered from the pressure relief hole is It becomes difficult to enter from the communication part, and mixing of the first liquid and the second liquid can be prevented more reliably.
- the fifth invention by providing the pressure release hole on the upper side in the vertical direction, the first liquid and the second liquid that are likely to stay downward due to their own weight are less likely to enter from the pressure release hole. Mixing of the second liquid can be prevented more reliably.
- the first liquid and the second liquid are sprung up by the rotation of the rotation shaft by providing the pressure release hole on the side of the rotation direction of the rotation shaft with respect to the top in the vertical direction. Even in such a state, the first liquid and the second liquid are less likely to enter from the pressure release hole, and the mixing of the first liquid and the second liquid can be prevented more reliably. Further, by providing the communication hole so as to be shifted from the position facing the pressure release hole to the front side in the rotation direction of the rotation shaft, the communication hole does not face the pressure release hole. Even if the first liquid or the second liquid enters, it can be prevented from entering the other space through the communication hole.
- 1 is a partial cross-sectional view showing an entire engine according to a first embodiment of the present invention.
- the expanded sectional view which shows a part of oil seal concerning said 1st embodiment.
- Explanatory drawing which shows the positional relationship of the pressure relief hole of the said oil seal, and a communicating hole.
- the expanded sectional view which shows a part of oil seal concerning 2nd embodiment of this invention.
- FIG. 1 shows a partial cross-sectional view of an engine 1 according to this embodiment.
- an engine 1 includes a plurality of cylinders 2 formed therein, a plurality of pistons 3 that reciprocate under the pressure of combustion gas burned inside each cylinder 2, and a reciprocating motion of the pistons 3.
- a crankshaft 4 serving as a rotating shaft that converts the rotating motion.
- Each piston 3 is attached to a crankshaft 4 disposed horizontally via a connecting rod 5 so as to be able to reciprocate.
- a disc-shaped flywheel 8 is provided at one end of the crankshaft 4 in order to suppress the rotation fluctuation caused by the piston 3 and obtain a smooth rotation.
- the flywheel 8 is connected to a transmission (not shown) that transmits torque to the drive axle on the side opposite to the side on which the crankshaft 4 is attached.
- the flywheel 8 has gears for meshing with the starter pinion on the outer periphery, and the transmission also transmits power when a large number of gears are meshed with each other, so each part needs to be properly lubricated. is there. Therefore, lubricating oil different from engine oil is supplied to these, and lubrication is performed by driving the flywheel 8 and the transmission in the atmosphere of this lubricating oil.
- the engine oil and the lubricating oil are opposite to each other between the engine block 7 and the flywheel housing 9 of the engine 1. It is sealed with an annular oil seal 10 so as not to enter.
- the outer periphery of the oil seal 10 is fitted in the shaft hole of the flywheel housing 9, and the inner periphery is in sliding contact with the outer periphery of the crankshaft 4.
- the oil seal 10 is fitted into a first seal 11 that seals the flywheel 8 side of the crankshaft 4, a second seal 12 that seals the engine 1 side, and a flywheel housing 9.
- a metal case 13 that supports the first seal 11 and the second seal 12, a gasket 14 that is interposed between the first seal 11 and the second seal 12, and a space between the first seal 11 and the second seal 12.
- an intervening partition lip 15
- the first seal 11 and the second seal 12 are ring-shaped members made of, for example, polytetrafluoroethylene (PTFE).
- the inner peripheral side of the first seal 11 is curved toward the flywheel 8 side, and the inner peripheral side of the second seal 12 is curved toward the engine 1 side.
- These inner peripheral portions serve as seal surfaces 11A and 12A that seal the crankshaft 4 by sliding contact with the outer peripheral surface of the rotating crankshaft 4.
- spiral grooves 11B and 12B are formed from the outer peripheral side toward the inner peripheral side.
- the portion surrounded by the first seal 11, the second seal 12, and the crankshaft 4 becomes a space 31 formed by the first seal 11 and the second seal 12 being curved in opposite directions. ing.
- the space 31 is isolated from the flywheel 8 side and the engine 1 side by the first seal 11 and the second seal 12.
- the gasket 14 is a ring-shaped member made of, for example, rubber or other members, and is interposed between the outer peripheral side portions of the first seal 11 and the partition lip 15.
- the surface pressure increases, and these are firmly held between the outer case 21 and the inner case 22.
- the dimensions of the gasket 14 and the gap 32 are enlarged to facilitate understanding.
- the partition lip 15 is a ring-shaped member made of PTFE or the like, like the first seal 11 and the second seal 12, and is interposed between the second seal 12 and the gasket 14.
- the inner peripheral side of the partition lip 15 is in contact with the outer peripheral surface of the crankshaft 4 while being curved toward the flywheel 8 side.
- the partition lip 15 divides the space 31 into a split space 31 ⁇ / b> A on the flywheel 8 side and a split space 31 ⁇ / b> B on the engine 1 side in the axial direction of the crankshaft 4.
- the piston 3 is reciprocated by the combustion gas as the engine is started, and the crankshaft 4 is thereby rotated.
- the oil seal 10 is configured such that the crankshaft 4 slides with respect to the seal surfaces 11A and 12A, so that the first seal 11 provides lubricating oil on the flywheel 8 side, and the second seal 12 provides engine oil on the engine 1 side.
- the lubricating oil or engine oil tries to enter the divided spaces 31A and 31B, it moves into the grooves 11B and 12B and moves spirally as the crankshaft 4 rotates, and is pushed out of the oil seal 10. It is.
- the air in the space 31 is also discharged together with the lubricating oil or engine oil.
- the space 31 has a negative pressure
- air on the flywheel 8 side is sucked from the pressure release hole 16 through the gap generated between the first seal 11 and the inner case 22, and is communicated.
- the divided spaces 31 ⁇ / b> A and 31 ⁇ / b> B communicate with each other through the hole 17. That is, negative pressure is prevented in the space 31.
- the first seal 11 and the second seal 12 are not slidably contacted with each other while being adsorbed to the outer peripheral surface of the crankshaft 4, and early wear of the first seal 11 and the second seal 12 can be prevented, resulting in a decrease in sealing performance. Can be suppressed.
- the pressure release hole 16 is provided in the first seal 11, and the communication hole 17 is provided in the partition lip 15 as in the first embodiment. Therefore, also in this embodiment, the same effect as that of the first embodiment can be obtained.
- the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
- the present invention is not limited to the oil seal that seals the engine oil and lubricating oil of the engine 1 but can be applied as a member that seals any other two liquids. That is, the name “oil seal” in the present invention is not a name given by simply sealing oil, but a name commonly used in the industry as a member for sealing any liquid.
- the communication hole 17 is not provided in the partition lip 15, it is included in the present invention.
- the pressure release holes 16 are provided in both the first seal 11 and the second seal 12.
- the position at which the communication hole 17 is provided is not limited to the above-described embodiments, and any position where the liquid that has entered from the pressure release hole 16 does not enter the other divided spaces 31A and 31B through the communication hole 17 is provided. It does not matter.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Sealing Devices (AREA)
Abstract
Description
ところで、この空間の外側に油が押し出されると、空間内の空気も一緒に押し出されて空間内が負圧になることから、両リップがクランクシャフトに押し付けられ、オイルシールの摩耗が促進される。この結果、オイルシールのシール性や耐久性が低下するおそれがある。そこで、二液型のオイルシールでは、一方のリップ、例えばフライホイール側のリップに圧抜き用の孔を設けた構成が知られている(例えば、特許文献1~3参照)。
特許文献2に記載のオイルシールも、クランクシャフトに当接される一対のシール部材を備え、潤滑油室を一方と他方とに隔絶するように構成されている。このようなオイルシールでも、一方のシール部材に連通路が設けられ、隔絶された一方の空間とシール部材間の環状空所とを連通させている。
特許文献3に記載のオイルシールは、一対のリップ間の空間とフライホイール側の空間(ミッションルーム)とを連通させるパイプを備えている。
具体的には、フライホイール側のオイルが連通路等を通してシール部材間の空間内に浸入し、この空間内のオイルがクランクシャフト側のリップの螺旋状の溝によりエンジンブロック内へ排出されることが考えられる。この場合、フライホイール側のオイルがクランクシャフト側へ排出されることから、フライホイール側のオイルが不足してしまうのである。
さらに、第一液または第二液をもとの液側に排出するので、第一液または第二液に不足が生じるのを防止できる。
なお、各実施形態において、同様の部分については同一符号を付し、説明を簡単にあるいは省略する。
図1には、本実施形態に係るエンジン1の一部断面図が示されている。
この図1において、エンジン1は、内部に複数個形成されたシリンダ2と、各シリンダ2の内部で燃焼した燃焼ガスの圧力を受けて往復運動する複数のピストン3と、ピストン3の往復運動を回転運動に変換する回転軸としてのクランクシャフト4とを備えている。各ピストン3は、水平に配置されたクランクシャフト4にコンロッド5を介して往復動可能に取り付けられている。
アウターケース21がインナーケース22に対してかしめられることにより、一対のインナーケース22間では、ガスケット14が介在された部分において、第一シール11、第二シール12、ガスケット14、および仕切リップ15間の面圧が上昇し、これらがアウターケース21とインナーケース22との間で堅固に保持される。なお、図2では、理解を容易にするため、ガスケット14や隙間32の寸法を拡大して表示してある。
さらに、潤滑油がエンジン1側に排出されることを防止できるので、フライホイール8側の潤滑油が不足するという不都合も防止できる。
次に、本発明の第二実施形態について説明する。
図4には、本実施形態に係るオイルシールの一部を示す拡大断面図が示されている。
この図4に示すように、第二実施形態では、第一実施形態のケース13に代えて、片側断面L字型のアウターケース21およびインナーケース22で構成されたケース13が用いられ、アウターケース21およびインナーケース22間に第一シール11、第二シール12、ガスケット14、および仕切リップ15が保持されている。
例えば、本発明は、エンジン1のエンジンオイルおよび潤滑油をシールするオイルシールに限らず、他の任意の二液をシールする部材として適用できる。すなわち、本発明でのオイルシールという名称は、単にオイルのみをシールすることで付されたものではなく、任意の液体をシールする部材として業界一般に使用される名称を使用したものである。
さらに、圧抜き孔16を1つに限らず、周方向に所定間隔を空けて複数設けてもよい。
そして、仕切リップ15を2つ設けてもよい。すなわち、第一シール11および第二シール12の双方に圧抜き孔16を設けた場合、内周側をそれぞれのシール側に湾曲させておくことで、各圧抜き孔16から浸入した液体をそれぞれの側に容易に案内できる。また、1つの仕切リップ15の内周側を逆Y字形状とし、それぞれの側に湾曲するようにしてもよい。
さらに、連通孔17が設けられる位置は、前記各実施形態に限らず、圧抜き孔16から浸入した液体が連通孔17を介して他の分割空間31A,31Bへ浸入しなければ、いずれの位置であっても構わない。
Claims (6)
- 回転軸の外周位置に設けられ、第一液および第二液の二液をシールするオイルシールであって、
前記回転軸の前記第一液側をシールする第一シールと、
前記回転軸の前記第二液側をシールする第二シールと、
前記第一シールおよび前記第二シールのうちの少なくともいずれか一方に設けられて、前記第一シール、前記第二シール、および前記回転軸で囲まれた空間を前記第一液側および前記第二液側のうちのいずれか一方に連通させる圧抜き孔と、
前記第一シールおよび前記第二シール間に配置されて、前記空間を前記回転軸の軸方向に分割する仕切リップとを備える
ことを特徴とするオイルシール。 - 請求項1に記載のオイルシールにおいて、
前記圧抜き孔は、前記第一シールおよび前記第二シールのうち、汚染度合いが低い前記第一液または前記第二液をシールする側に設けられる
ことを特徴とするオイルシール。 - 請求項1または請求項2に記載のオイルシールにおいて、
前記仕切リップは、前記分割する空間を連通する連通孔を備える
ことを特徴とするオイルシール。 - 請求項3に記載のオイルシールにおいて、
前記圧抜き孔および前記連通孔は、前記回転軸の軸線に沿って対向する位置から互いにずれている
ことを特徴とするオイルシール。 - 請求項3または請求項4に記載のオイルシールにおいて、
前記圧抜き孔および前記連通孔は、略水平とされた前記回転軸の軸線に対して上方側に設けられる
ことを特徴とするオイルシール。 - 請求項5に記載のオイルシールにおいて、
前記圧抜き孔は、鉛直方向の最上部に対して前記回転軸の回転方向に通り越した側に設けられ、
前記連通孔は、前記圧抜き孔に対向する位置に対して前記回転軸の回転方向の手前側にずれて設けられる
ことを特徴とするオイルシール。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014001013.8T DE112014001013B4 (de) | 2013-02-27 | 2014-01-07 | Öldichtung |
US14/768,738 US10060532B2 (en) | 2013-02-27 | 2014-01-07 | Oil seal |
CN201480009713.2A CN105008775B (zh) | 2013-02-27 | 2014-01-07 | 油封 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013037640A JP6013230B2 (ja) | 2013-02-27 | 2013-02-27 | オイルシール |
JP2013-037640 | 2013-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014132674A1 true WO2014132674A1 (ja) | 2014-09-04 |
Family
ID=51427948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/050042 WO2014132674A1 (ja) | 2013-02-27 | 2014-01-07 | オイルシール |
Country Status (5)
Country | Link |
---|---|
US (1) | US10060532B2 (ja) |
JP (1) | JP6013230B2 (ja) |
CN (1) | CN105008775B (ja) |
DE (1) | DE112014001013B4 (ja) |
WO (1) | WO2014132674A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11421784B2 (en) * | 2020-07-16 | 2022-08-23 | Powerhouse Engine Solutions Switzerland IP Holding GmbH | Multi-position crankshaft lip seal |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6435969B2 (ja) * | 2015-03-31 | 2018-12-12 | 株式会社デンソー | Egr装置 |
SE542479C2 (en) * | 2016-11-28 | 2020-05-19 | Scania Cv Ab | A combustion engine comprising a sealing arrangement for a rotatable shaft |
US20190301612A1 (en) * | 2018-03-30 | 2019-10-03 | GM Global Technology Operations LLC | Vented lip seal |
GB2577906B (en) * | 2018-10-10 | 2021-01-13 | Jaguar Land Rover Ltd | A seal |
US11796063B2 (en) * | 2021-05-27 | 2023-10-24 | Caterpillar Inc. | Seal assembly for rotatable shaft having ventilated dust seal with debris-blocking filter |
CN114458763B (zh) * | 2022-01-24 | 2022-08-05 | 江门市格雷亚特流体密封技术有限公司 | 一种空压机用旋转密封件及其制备方法 |
US11940049B1 (en) | 2022-11-01 | 2024-03-26 | Bal Seal Engineering, Llc | Lip seals and related methods |
US12031631B1 (en) * | 2023-02-01 | 2024-07-09 | Caterpillar Inc. | Dynamically vented crankshaft seal and systems and methods thereof |
Citations (3)
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JPS546456U (ja) * | 1977-06-16 | 1979-01-17 | ||
GB2258275A (en) * | 1991-07-27 | 1993-02-03 | Dowty Seals Ltd | A shaft seal |
JP2004156702A (ja) * | 2002-11-06 | 2004-06-03 | Toyota Industries Corp | 軸封装置 |
Family Cites Families (18)
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US3472519A (en) * | 1967-02-13 | 1969-10-14 | Skf Ind Inc | Seal for rolling bearings |
DE2536278A1 (de) | 1975-08-14 | 1977-02-24 | Goetzewerke | Wellendichtring mit einer rueckfoerdereinrichtung |
JPS5741502Y2 (ja) * | 1977-07-07 | 1982-09-11 | ||
DE3236636C2 (de) | 1982-10-04 | 1986-05-07 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Dichtung, insbesondere für Wälzlager |
JPS6084860U (ja) | 1983-11-17 | 1985-06-11 | 光洋精工株式会社 | オイルシ−ル装置 |
JPS60112755U (ja) | 1984-01-09 | 1985-07-30 | エヌオーケー株式会社 | オイルシ−ル |
US5009435A (en) * | 1989-08-15 | 1991-04-23 | Cummins Engine Company, Inc. | Unitary sealing system with internal venting |
US5035436A (en) * | 1990-04-24 | 1991-07-30 | Five Star Seal Corporation | Housing seal chamber body |
FR2786547B1 (fr) * | 1998-12-01 | 2001-02-16 | Hutchinson | Joint d'etancheite pour arbre tournant, et dispositif comportant un tel joint |
JP3876171B2 (ja) | 2002-03-08 | 2007-01-31 | 株式会社小松製作所 | オイルシール |
DE10319821B4 (de) * | 2003-05-03 | 2008-01-24 | Reinhard Feinmechanik Gmbh | Wellendichtungsmodul zum Abdichten von Vakuumräumen |
CN100391634C (zh) * | 2003-10-07 | 2008-06-04 | 摩根建设公司 | 轧钢机油膜轴承颈部密封件 |
US20050073110A1 (en) | 2003-10-07 | 2005-04-07 | James Armour | Neck seal for rolling mill oil film bearing |
US7827786B2 (en) | 2007-05-24 | 2010-11-09 | Gm Global Technology Operations, Inc. | Seal assembly for reducing fluid loss from transmission pump |
CN101788055A (zh) * | 2009-01-22 | 2010-07-28 | 江苏华阳重工科技股份有限公司 | 船舶高耐压油润滑密封装置 |
US20100253005A1 (en) * | 2009-04-03 | 2010-10-07 | Liarakos Nicholas P | Seal for oil-free rotary displacement compressor |
CN101936397A (zh) * | 2010-09-07 | 2011-01-05 | 青岛开世密封工业有限公司 | 一种带通气孔的组合式ptfe油封及其制造和安装方法 |
CN202301953U (zh) * | 2011-08-04 | 2012-07-04 | 青岛开世密封工业有限公司 | 具有主动散热功能的密封圈 |
-
2013
- 2013-02-27 JP JP2013037640A patent/JP6013230B2/ja not_active Expired - Fee Related
-
2014
- 2014-01-07 DE DE112014001013.8T patent/DE112014001013B4/de not_active Expired - Fee Related
- 2014-01-07 WO PCT/JP2014/050042 patent/WO2014132674A1/ja active Application Filing
- 2014-01-07 US US14/768,738 patent/US10060532B2/en active Active
- 2014-01-07 CN CN201480009713.2A patent/CN105008775B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS546456U (ja) * | 1977-06-16 | 1979-01-17 | ||
GB2258275A (en) * | 1991-07-27 | 1993-02-03 | Dowty Seals Ltd | A shaft seal |
JP2004156702A (ja) * | 2002-11-06 | 2004-06-03 | Toyota Industries Corp | 軸封装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11421784B2 (en) * | 2020-07-16 | 2022-08-23 | Powerhouse Engine Solutions Switzerland IP Holding GmbH | Multi-position crankshaft lip seal |
Also Published As
Publication number | Publication date |
---|---|
JP2014163499A (ja) | 2014-09-08 |
JP6013230B2 (ja) | 2016-10-25 |
US20160003359A1 (en) | 2016-01-07 |
DE112014001013T5 (de) | 2015-12-10 |
CN105008775A (zh) | 2015-10-28 |
CN105008775B (zh) | 2017-09-29 |
DE112014001013B4 (de) | 2020-07-30 |
US10060532B2 (en) | 2018-08-28 |
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