JPH0942168A - Oil seal structure of vane pump driving shaft - Google Patents
Oil seal structure of vane pump driving shaftInfo
- Publication number
- JPH0942168A JPH0942168A JP7209093A JP20909395A JPH0942168A JP H0942168 A JPH0942168 A JP H0942168A JP 7209093 A JP7209093 A JP 7209093A JP 20909395 A JP20909395 A JP 20909395A JP H0942168 A JPH0942168 A JP H0942168A
- Authority
- JP
- Japan
- Prior art keywords
- oil seal
- groove
- seal
- drive shaft
- vane pump
- 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
Links
Landscapes
- Rotary Pumps (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ポンプ、殊に、自
動車用ベーンポンプの駆動軸等に使用されるオイルシー
ルの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an oil seal used for a pump, particularly a drive shaft of a vane pump for an automobile.
【０００２】[0002]
【従来の技術】自動車用ベーンポンプでは、ボディと駆
動軸との間にオイルシールを介装して作動油が外部へ漏
れるのを防止している。2. Description of the Related Art In a vane pump for an automobile, an oil seal is provided between a body and a drive shaft to prevent hydraulic oil from leaking to the outside.
【０００３】このようなオイルシール構造としては、特
公昭６３−１４７５号公報などが知られており、これ
は、図４に示すようなベーンポンプの駆動軸１１２と、
ボディ１０４との間にオイルシール１２０を介装したも
のである。As such an oil seal structure, Japanese Patent Publication No. 63-1475 is known, which has a drive shaft 112 of a vane pump as shown in FIG.
An oil seal 120 is interposed between the body 104 and the body.
【０００４】このベーンポンプは、一対のボディ１０
２、１０４の内周にロータ−１０６、ベーン１０７、カ
ムリング１１０からなるポンプカートリッジを収装した
もので、駆動軸１１２は、ボディ１０４に貫通形成され
た軸穴１０５に挿通されて、一端をロータ１０６に結合
する一方、他端をボディ１０４の端面１０４Ａから突出
させて図示しないプーリ等に結合される。This vane pump has a pair of bodies 10
A pump cartridge including a rotor 106, a vane 107, and a cam ring 110 is housed on the inner periphery of the rotors 2 and 104, and a drive shaft 112 is inserted into a shaft hole 105 formed through the body 104, and one end thereof is a rotor. While being coupled to 106, the other end is projected from the end surface 104A of the body 104 and coupled to a pulley (not shown) or the like.
【０００５】そして、駆動軸１１２は端面１０４Ａ側に
設けたベアリング１１３によって軸支され、ベアリング
１１３のポンプカートリッジ側にはスペーサ１２１を介
してオイルシール１２０が配設され、ボディ１０２、１
０４内部から軸穴１０５に漏れた作動油を封止してい
る。The drive shaft 112 is rotatably supported by a bearing 113 provided on the end face 104A side, and an oil seal 120 is arranged on the pump cartridge side of the bearing 113 via a spacer 121.
The hydraulic oil leaking from the inside to the shaft hole 105 is sealed.
【０００６】このようなオイルシール構造では、軸穴１
０５からのドレーン通路１０８の異常などによって軸穴
１０５の内部の油圧が上昇した場合、オイルシール１２
０が端面１０４Ａから抜けるのを防ぐために、ベアリン
グ１１３の外側端面とボディ１０４の端面１０４Ａ内周
との間にサークリップ１３１等の抜け止め手段を設けて
いる。In such an oil seal structure, the shaft hole 1
If the hydraulic pressure inside the shaft hole 105 rises due to an abnormality in the drain passage 108 from 05, the oil seal 12
In order to prevent 0 from coming off from the end surface 104A, a retaining means such as a circlip 131 is provided between the outer end surface of the bearing 113 and the inner circumference of the end surface 104A of the body 104.
【０００７】このほか、単純なオイルシール構造として
は、図５に示すように、ボディ１０４における軸穴１０
５の端面１０４Ａに、環状のシール溝１０５Ａを形成
し、オイルシール１２０を圧入したものも知られてお
り、上記のものに比して部品点数を削減することができ
る。In addition to this, as a simple oil seal structure, as shown in FIG.
It is also known that the annular seal groove 105A is formed in the end surface 104A of No. 5 and the oil seal 120 is press-fitted therein, and the number of parts can be reduced as compared with the above.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上記前
者のオイルシール構造では、軸穴１０５のドレーン通路
１０８の異常などによって軸穴１０５の油圧上昇が過大
になっても、サークリップ１３１によってオイルシール
１２０の抜けを確実に防止することができるが、軸穴１
０５の内周にはサークリップ１３１を収装するための溝
や段部を加工する必要があるだけでなく、サークリップ
１３１やシール１２０のバックアップ用スペーサ１２１
等を付加するために、部品点数が増大して製造コストも
増大するという問題があり、また、上記後者のオイルシ
ール構造では、シール溝１０５Ａにオイルシール１２０
を圧入するだけなので、加工工数、部品点数を削減でき
るが、ドレーン通路１０８の異常などによってオイルシ
ール１２０に加わる油圧が過大になると、オイルシール
１２０が抜けて作動油が漏れる場合があるという問題が
あった。However, in the former oil seal structure, even if the hydraulic pressure in the shaft hole 105 is excessively increased due to an abnormality in the drain passage 108 of the shaft hole 105, the oil seal 120 is provided by the circlip 131. The shaft hole 1
Not only is it necessary to process grooves and steps for accommodating the circlip 131 on the inner periphery of 05, but also a backup spacer 121 for the circlip 131 and the seal 120.
However, there is a problem in that the number of parts increases and the manufacturing cost also increases due to the addition of the above, and in the latter oil seal structure, the oil seal 120 is provided in the seal groove 105A.
However, if the hydraulic pressure applied to the oil seal 120 becomes excessive due to an abnormality in the drain passage 108, the oil seal 120 may come off and the hydraulic oil may leak. there were.
【０００９】そこで本発明は、加工工数及び部品点数の
削減を行いながら確実に作動油の漏れを防止可能なオイ
ルシール構造を提供することを目的とする。Therefore, an object of the present invention is to provide an oil seal structure capable of surely preventing leakage of hydraulic oil while reducing the number of processing steps and the number of parts.
【００１０】[0010]
【課題を解決するための手段】本発明は、内部にベーン
ポンプローターを収装するボディの内部から外部へ突出
するとともに、ボディに回転自在に軸支された駆動軸
と、前記ボディに貫通形成されて駆動軸を挿通する軸穴
と、この軸穴が外部へ向けて開口する端面に形成された
環状のシール溝と、外周を前記シール溝に嵌合する一
方、内周で駆動軸と摺接するオイルシールとを備えたベ
ーンポンプ駆動軸のオイルシール構造において、前記シ
ール溝は、開口端面から軸方向の所定の位置に形成さ
れ、かつ開口端面側へ向けて内径を増大したテーパー溝
と、このテーパー溝と開口端面との間に形成されて、前
記テーパー溝の最大内径より小なる内径Ｄの小径穴部と
を有し、前記オイルシールの外周には、前記テーパー溝
と係合可能な凸部を突設する。SUMMARY OF THE INVENTION According to the present invention, a drive shaft, which protrudes from the inside of a body that houses a vane pump rotor to the outside and is rotatably supported by the body, is formed through the body. Shaft hole through which the drive shaft is inserted, an annular seal groove formed on the end surface of the shaft hole that opens to the outside, and the outer circumference is fitted into the seal groove while slidingly contacting the drive shaft on the inner circumference. In an oil seal structure for a vane pump drive shaft including an oil seal, the seal groove is formed at a predetermined position in the axial direction from the opening end face, and has a taper groove whose inner diameter increases toward the opening end face side, and this taper. A convex portion that is formed between the groove and the opening end surface and has a small diameter hole portion having an inner diameter D smaller than the maximum inner diameter of the taper groove, and a convex portion that is engageable with the taper groove on the outer periphery of the oil seal. Protruding That.
【００１１】[0011]
【作用】したがって本発明は、シール溝の開口端面側に
は所定の内径Ｄの小径穴部が形成される一方、シール溝
のボディ内部側には外部へ向けて内径を拡大したテーパ
ー溝部が形成され、オイルシールの外周に突設された凸
部はテーパー溝と係合するとともに、オイルシールの開
口端面側の外周は小径穴部に押圧される。駆動軸が貫通
する軸穴内部の油圧が上昇してオイルシールの背圧が上
昇しても、オイルシールは小径穴部との摩擦力に加え
て、凸部がテーパー溝に係止されるため、ボディから抜
けるのを防止することができる。Therefore, according to the present invention, a small-diameter hole portion having a predetermined inner diameter D is formed on the opening end face side of the seal groove, while a tapered groove portion whose inner diameter is expanded outward is formed on the inner side of the body of the seal groove. The convex portion protruding from the outer periphery of the oil seal engages with the tapered groove, and the outer periphery of the oil seal on the opening end face side is pressed against the small diameter hole. Even if the oil pressure inside the shaft hole through which the drive shaft penetrates rises and the back pressure of the oil seal rises, the convex portion is locked in the taper groove in addition to the frictional force with the small diameter hole. It is possible to prevent it from coming off the body.
【００１２】[0012]
【発明の実施の形態】図１〜図３に、本発明をベーンポ
ンプに適用した場合の一実施形態を示す。1 to 3 show an embodiment in which the present invention is applied to a vane pump.
【００１３】図１は、端面１Ａをカバー２で封止された
ボディ１の内周にベーン７を有するローター６とカムリ
ング８を収装したベーンポンプを示す。FIG. 1 shows a vane pump in which a rotor 6 having a vane 7 and a cam ring 8 are housed in the inner periphery of a body 1 whose end face 1A is sealed by a cover 2.
【００１４】ボディ１には駆動軸９を挿通するための軸
穴１０が貫通形成され、駆動軸９は一端をローター６に
結合して端面１Ａから突出させ、さらにカバー２の軸受
メタル１６Ａにより支承する一方、他端をボディ１の端
面１Ｂから突出させて、図示しないプーリ等の動力伝達
手段と結合し、かつ軸穴１０の内周に配設された軸受け
メタル１６を介して駆動軸９はボディ１に軸支される。A shaft hole 10 for inserting the drive shaft 9 is formed through the body 1. The drive shaft 9 has one end coupled to the rotor 6 so as to project from the end face 1A, and is further supported by the bearing metal 16A of the cover 2. On the other hand, the other end is projected from the end surface 1B of the body 1 to be coupled with a power transmission means such as a pulley (not shown), and the drive shaft 9 is connected via the bearing metal 16 arranged on the inner circumference of the shaft hole 10. It is pivotally supported by the body 1.
【００１５】図２、図３に示すように、端面１Ｂで外部
に向けて開口した軸穴１０には、端面１Ｂから軸方向
（駆動軸９の軸線に沿う方向、以下同様）の所定の位置
までシール溝１１が環状に形成され、駆動軸９の外周と
摺接してボディ１の軸穴１０内に漏れ出た作動油を封止
するオイルシール２０が圧入によって嵌合される。As shown in FIGS. 2 and 3, in the shaft hole 10 which is open outward at the end face 1B, a predetermined position in the axial direction from the end face 1B (direction along the axis of the drive shaft 9, hereinafter the same). The seal groove 11 is formed in an annular shape, and the oil seal 20 that slides in contact with the outer periphery of the drive shaft 9 and seals the hydraulic oil leaking into the shaft hole 10 of the body 1 is press-fitted.
【００１６】ここで、シール溝１１は端面１Ｂに面して
オイルシール２０の挿入を容易にするテーパー部１２を
形成するとともに、端面１Ｂ側から軸方向の所定の位置
に、端面１Ｂへ向けて内径を増大するテーパー溝１３を
備えており、テーパー溝１３と軸穴１０及びテーパー部
１２との間には軸穴１０の内径より大なる所定の内径Ｄ
の小径穴部１１ａ、１１ｂが形成される。Here, the seal groove 11 forms a taper portion 12 facing the end face 1B to facilitate the insertion of the oil seal 20, and at a predetermined axial position from the end face 1B side toward the end face 1B. A tapered groove 13 for increasing the inner diameter is provided, and a predetermined inner diameter D larger than the inner diameter of the shaft hole 10 is provided between the tapered groove 13 and the shaft hole 10 and the tapered portion 12.
The small-diameter hole portions 11a and 11b are formed.
【００１７】このテーパー溝１３は、小径穴部１１ａの
内径Ｄ1からシール溝１１の開口端面１Ｂへ向けて徐々
に内径を増大させて、最大内径は小径穴部１１ａ、１１
ｂの内径Ｄより大なる内径Ｄ1で形成される。そして、
テーパー溝１３は隣合う小径穴部１１ｂとの間に駆動軸
９の軸線に対してほぼ直交する平面としての壁面１３ａ
を形成する。The taper groove 13 gradually increases in inner diameter from the inner diameter D 1 of the small diameter hole portion 11a toward the opening end face 1B of the seal groove 11, and the maximum inner diameter is small diameter hole portions 11a, 11
It is formed with an inner diameter D 1 larger than the inner diameter D of b. And
The taper groove 13 has a wall surface 13a as a flat surface which is substantially orthogonal to the axis of the drive shaft 9 between the adjacent small diameter hole portion 11b.
To form
【００１８】したがって、シール溝１１は、軸穴１０か
ら小径穴部１１ａで内径をＤまで拡大し、テーパー溝１
３でさらに内径はＤ1まで所定の角度で拡大した後、小
径穴部１１ｂで再び内径をＤまで急激に縮小してから、
テーパー部１２で徐々に内径を拡大しながら端面１Ｂと
接続する。Therefore, the seal groove 11 has an inner diameter enlarged from the shaft hole 10 to a small hole portion 11a up to D, and the taper groove 1 is formed.
After further increasing the inner diameter to D 1 by 3 at a predetermined angle, the inner diameter is rapidly reduced to D again in the small-diameter hole portion 11b.
The taper portion 12 is connected to the end surface 1B while gradually increasing the inner diameter.
【００１９】一方、シール溝１１に嵌合するオイルシー
ル２０は、シール溝１１の小径穴部１１ａ、１１ｂの内
径Ｄよりやや大きい外径ｄで形成された円筒部２０ａ、
２０ｂを両端部にそれぞれ備え、これら円筒部２０ａ、
２０ｂの間には外径ｄより大なる外径ｄ1の環状の凸部
２１を突設し、この凸部２１がシール溝１１のテーパー
溝１３へ貫入する。On the other hand, the oil seal 20 fitted in the seal groove 11 has a cylindrical portion 20a formed with an outer diameter d slightly larger than the inner diameter D of the small diameter holes 11a and 11b of the seal groove 11.
20b are provided at both ends, and these cylindrical portions 20a,
An annular convex portion 21 having an outer diameter d 1 larger than the outer diameter d is provided between the portions 20 b, and the convex portion 21 penetrates into the taper groove 13 of the seal groove 11.
【００２０】このオイルシール２０の外周及び凸部２１
は弾性を備えたゴム等の樹脂で形成され、シール溝１１
に圧入されたオイルシール２０は、円筒部２０ａ、２０
ｂの摩擦力と、凸部２１がテーパー溝１３の壁面１３ａ
に係止されることで、オイルシール２０がボディ１の外
部へ向けた軸方向（駆動軸９の軸方向、以下同様）へ変
位するのを抑制する。The outer periphery of the oil seal 20 and the convex portion 21
Is made of a resin such as rubber having elasticity, and the seal groove 11
The oil seal 20 press-fitted into the
The frictional force of b and the convex portion 21 is the wall surface 13a of the taper groove 13.
The oil seal 20 is prevented from displacing in the axial direction toward the outside of the body 1 (axial direction of the drive shaft 9, the same applies hereinafter) by being locked at.
【００２１】以上のよう構成されたオイルシールの作用
について説明する。The operation of the oil seal configured as described above will be described.
【００２２】オイルシール２０の円筒部２０ａ、２０ｂ
は、シール溝１１の小径穴部１１ａ、１１ｂに押圧され
て、摩擦力によってオイルシール２０の軸方向の変位を
規制する。The cylindrical portions 20a and 20b of the oil seal 20
Is pressed by the small-diameter holes 11a and 11b of the seal groove 11, and regulates the axial displacement of the oil seal 20 by frictional force.
【００２３】ポンプからは作動油が軸穴１０内に若干漏
れており、この漏れた作動油がオイルシール２０に背圧
を付与するが、通常、円筒部２０ａ、２０ｂの摩擦力の
みによってオイルシール２０はシール溝１１の内周に係
止され、ボディ１の外部への変位が規制される。A small amount of hydraulic oil leaks from the pump into the shaft hole 10. The leaked hydraulic oil gives a back pressure to the oil seal 20, but normally, the oil seal is generated only by the frictional force of the cylindrical portions 20a and 20b. 20 is locked to the inner circumference of the seal groove 11, and the displacement of the body 1 to the outside is restricted.
【００２４】一方、軸穴１０から吸込穴に向けて設けた
ドレーン通路１８の異常等によってオイルシール２０に
加わる背圧が上昇し、この背圧が円筒部２０ａ、２０ｂ
が発生する摩擦力を超えて上昇すると、オイルシール２
０はシール溝１１の内周を摺動して図中右側、すなわ
ち、ボディ１の外部へ向けて変位しようとする。On the other hand, the back pressure applied to the oil seal 20 rises due to an abnormality in the drain passage 18 provided from the shaft hole 10 toward the suction hole, and this back pressure is increased by the cylindrical portions 20a, 20b.
If the oil pressure rises beyond the frictional force that occurs, the oil seal 2
0 slides on the inner circumference of the seal groove 11 and tries to be displaced to the right side in the figure, that is, toward the outside of the body 1.
【００２５】しかしながら、オイルシール２０の凸部２
１は、シール溝１１のテーパー溝１３へ貫入しているた
め、オイルシール２０の軸方向の変位に応じて凸部２１
はテーパー溝１３の壁面１３ａに係止されるため、オイ
ルシール２０がボディ１から抜けるのを防止することが
できる。However, the convex portion 2 of the oil seal 20
Since No. 1 penetrates into the taper groove 13 of the seal groove 11, the convex portion 21 corresponds to the axial displacement of the oil seal 20.
Is locked to the wall surface 13a of the tapered groove 13, so that the oil seal 20 can be prevented from coming off from the body 1.
【００２６】こうして、前記従来例のように、サークリ
ップ等を用いることなくオイルシール２０の抜け止めを
行うことができ、部品点数及び加工工数を削減して製造
コストの低減を図ることができる。In this way, unlike the conventional example, the oil seal 20 can be prevented from coming off without using a circlip or the like, and the number of parts and the number of processing steps can be reduced to reduce the manufacturing cost.
【００２７】また、このようなオイルシール２０を組み
付ける際には、凸部２１がテーパー溝１３に貫入する所
定の位置以上へ圧入すればよく、凸部２１が壁面１３ａ
から離れるようにオイルシール２０がシール溝１１の奥
に組み付けられても、オイルシール２０は、加わる背圧
によって凸部２１が壁面１３ａに係止される位置まで変
位して、自動的に位置決めを行うことができる。なお、
このとき、端面１Ｂに面したテーパー部１２によってオ
イルシール２０をシール溝１１の内周へ円滑に案内でき
る。Further, when assembling such an oil seal 20, it is sufficient that the convex portion 21 is press-fitted to a predetermined position or more where the convex portion 21 penetrates the tapered groove 13, and the convex portion 21 is wall surface 13a.
Even when the oil seal 20 is installed in the inner part of the seal groove 11 so as to be separated from the oil seal 20, the oil seal 20 is displaced by the back pressure applied to the position where the convex portion 21 is locked to the wall surface 13a, and is automatically positioned. It can be carried out. In addition,
At this time, the oil seal 20 can be smoothly guided to the inner circumference of the seal groove 11 by the tapered portion 12 facing the end surface 1B.
【００２８】したがって、オイルシール２０の組み付け
は、大まかな位置決めだけで済み、容易かつ迅速に行う
ことが可能となって生産性を向上することが可能とな
る。Therefore, the oil seal 20 can be assembled only by rough positioning, and can be easily and quickly assembled to improve the productivity.
【００２９】なお、上記実施形態において、オイルシー
ル２０の外周に凸部２１を環状に突設したが、断続的に
形成しても良い。In the above embodiment, the projection 21 is annularly projected on the outer circumference of the oil seal 20, but it may be formed intermittently.
【００３０】[0030]
【発明の効果】以上のように本発明によれば、軸穴内部
の油圧が上昇してオイルシールの背圧が上昇しても、オ
イルシールは小径穴部との摩擦力に加えて、凸部がテー
パー溝に係止されるため、オイルシールがボディから抜
けるのを確実に防止することができ、前記従来例のよう
にサークリップ等の抜け止め手段を用いる必要がないた
め、部品点数及び組み立て時の加工工数を低減して製造
コストの低減を図ることができ、さらに、オイルシール
は凸部をテーパー溝に入れれば背圧によって位置決めを
行うことができるため、組み立てを容易かつ迅速に行う
ことが可能になるのである。As described above, according to the present invention, even if the oil pressure inside the shaft hole rises and the back pressure of the oil seal rises, the oil seal also has a convex force in addition to the frictional force with the small diameter hole. Since the part is locked in the taper groove, it is possible to reliably prevent the oil seal from coming off from the body, and it is not necessary to use a retaining means such as a circlip unlike the above-mentioned conventional example. The manufacturing cost can be reduced by reducing the number of processing steps during assembly, and the oil seal can be positioned by back pressure if the convex part is placed in the taper groove, so assembly is quick and easy. It will be possible.
【図１】本発明の一実施形態を示すベーンポンプの断面
図である。FIG. 1 is a cross-sectional view of a vane pump showing an embodiment of the present invention.
【図２】同じくシール溝の拡大断面図。FIG. 2 is an enlarged sectional view of the seal groove.
【図３】同じくオイルシール及びシール溝の拡大断面
図。FIG. 3 is an enlarged sectional view of an oil seal and a seal groove.
【図４】従来の例を示すベーンポンプの断面図。FIG. 4 is a sectional view of a vane pump showing a conventional example.
【図５】他の従来例を示すシール溝の断面図である。FIG. 5 is a sectional view of a seal groove showing another conventional example.
１ ボディ ６ ロータ １０ 軸穴 １１ シール溝 １１ａ、１１ｂ 小径穴部 １２ テーパー部 １３ テーパー溝 １３ａ 壁面 ２０ オイルシール ２０ａ、２０ｂ 円筒部 ２１ 凸部 1 Body 6 Rotor 10 Shaft Hole 11 Seal Groove 11a, 11b Small Diameter Hole 12 Tapered Part 13 Tapered Groove 13a Wall Surface 20 Oil Seal 20a, 20b Cylindrical Part 21 Convex Part
Claims (1)
ボディの内部から外部へ突出するとともに、ボディに回
転自在に軸支された駆動軸と、前記ボディに貫通形成さ
れて駆動軸を挿通する軸穴と、この軸穴が外部へ向けて
開口する端面に形成された環状のシール溝と、外周を前
記シール溝に嵌合する一方、内周で駆動軸と摺接するオ
イルシールとを備えたベーンポンプ駆動軸のオイルシー
ル構造において、前記シール溝は、開口端面から軸方向
の所定の位置に形成され、かつ開口端面側へ向けて内径
を増大したテーパー溝と、このテーパー溝と開口端面と
の間に形成されて、前記テーパー溝の最大内径より小な
る内径Ｄの小径穴部とを有し、前記オイルシールの外周
には、前記テーパー溝と係合可能な凸部を突設したこと
を特徴とするベーンポンプ駆動軸のオイルシール構造。1. A drive shaft, which projects from the inside of a body housing a vane pump rotor to the outside and is rotatably supported by the body, and a shaft hole penetratingly formed in the body for inserting the drive shaft. And a vane pump drive including an annular seal groove formed on an end surface of the shaft hole that opens toward the outside, and an oil seal that fits the outer circumference into the seal groove and is in sliding contact with the drive shaft on the inner circumference. In the oil seal structure for a shaft, the seal groove is formed at a predetermined position in the axial direction from the opening end face and has a taper groove whose inner diameter increases toward the opening end face side, and between the tapered groove and the opening end face. And a small diameter hole portion having an inner diameter D smaller than the maximum inner diameter of the tapered groove, and a convex portion engageable with the tapered groove is provided on the outer periphery of the oil seal. Vane Pump drive shaft oil seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7209093A JPH0942168A (en) | 1995-07-25 | 1995-07-25 | Oil seal structure of vane pump driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7209093A JPH0942168A (en) | 1995-07-25 | 1995-07-25 | Oil seal structure of vane pump driving shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0942168A true JPH0942168A (en) | 1997-02-10 |
Family
ID=16567175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7209093A Pending JPH0942168A (en) | 1995-07-25 | 1995-07-25 | Oil seal structure of vane pump driving shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0942168A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006077677A1 (en) * | 2005-01-21 | 2006-07-27 | Nok Corporation | Gasket |
| CN100335793C (en) * | 2003-07-17 | 2007-09-05 | 尤尼西亚Jkc控制系统株式会社 | Oil hydraulic pump |
| WO2007102411A1 (en) * | 2006-03-07 | 2007-09-13 | Dynax Corporation | Seal structure of canceller in wet clutch |
| US7314359B2 (en) * | 2004-10-26 | 2008-01-01 | Kayaba Industry Co., Ltd. | Vane pump for continuously variable transmission |
| JP2010150958A (en) * | 2008-12-24 | 2010-07-08 | Kayaba Ind Co Ltd | Vane pump |
| JP2011033081A (en) * | 2009-07-30 | 2011-02-17 | Mitsubishi Heavy Ind Ltd | Lip seal device and fluid machine using the same |
| CN108571579A (en) * | 2018-05-02 | 2018-09-25 | 陕西法士特齿轮有限责任公司 | A kind of preventing oil seal abjection end cover structure |
-
1995
- 1995-07-25 JP JP7209093A patent/JPH0942168A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335793C (en) * | 2003-07-17 | 2007-09-05 | 尤尼西亚Jkc控制系统株式会社 | Oil hydraulic pump |
| US7314359B2 (en) * | 2004-10-26 | 2008-01-01 | Kayaba Industry Co., Ltd. | Vane pump for continuously variable transmission |
| WO2006077677A1 (en) * | 2005-01-21 | 2006-07-27 | Nok Corporation | Gasket |
| JPWO2006077677A1 (en) * | 2005-01-21 | 2008-06-19 | Nok株式会社 | gasket |
| WO2007102411A1 (en) * | 2006-03-07 | 2007-09-13 | Dynax Corporation | Seal structure of canceller in wet clutch |
| JP2010150958A (en) * | 2008-12-24 | 2010-07-08 | Kayaba Ind Co Ltd | Vane pump |
| JP2011033081A (en) * | 2009-07-30 | 2011-02-17 | Mitsubishi Heavy Ind Ltd | Lip seal device and fluid machine using the same |
| CN108571579A (en) * | 2018-05-02 | 2018-09-25 | 陕西法士特齿轮有限责任公司 | A kind of preventing oil seal abjection end cover structure |
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