JPH0545799B2 - - Google Patents
Info
- Publication number
- JPH0545799B2 JPH0545799B2 JP57224438A JP22443882A JPH0545799B2 JP H0545799 B2 JPH0545799 B2 JP H0545799B2 JP 57224438 A JP57224438 A JP 57224438A JP 22443882 A JP22443882 A JP 22443882A JP H0545799 B2 JPH0545799 B2 JP H0545799B2
- Authority
- JP
- Japan
- Prior art keywords
- vane
- sliding structure
- rotating sliding
- ceramic body
- cylindrical rotor
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/40—Organic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明はベーンポンプ等の回転摺動構造体に関
する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a rotating sliding structure such as a vane pump.
［発明の技術的背景とその問題点］
近年、防災上の観点から油圧機器における流体
として従来の炭化水素系の油に代えて、例えばエ
チレングリコールと水との混合物からなる不燃性
または難燃性の液体の使用が検討され始めてい
る。[Technical background of the invention and its problems] In recent years, from the viewpoint of disaster prevention, non-flammable or flame-retardant oils such as mixtures of ethylene glycol and water have been used instead of conventional hydrocarbon oils as fluids in hydraulic equipment. The use of liquids is beginning to be considered.
しかしながら従来の油圧機器、例えば高速回転
して使用されるベーンポンプ等は金属で形成され
ているため、水−エチレングリコール系の液体中
ではベーンポンプ特にベーンの部分が腐食し易
く、耐摩耗性が低下するという難点があつた。 However, since conventional hydraulic equipment, such as vane pumps that rotate at high speeds, are made of metal, the vane pumps, especially the vanes, are prone to corrosion in water-ethylene glycol-based liquids, reducing their wear resistance. There was a problem.
［発明の目的］
本発明はこのような難点を解消するためなされ
たもので、耐食性、耐摩耗性を向上させた回転摺
動構造体を提供することを目的とする。[Object of the Invention] The present invention has been made to solve these difficulties, and an object of the present invention is to provide a rotating sliding structure with improved corrosion resistance and wear resistance.
［発明の概要］
本発明の回転摺動構造体は、外周面の長さ方向
に溝の形成された筒状ロータと、この筒状ロータ
の溝に円滑に摺動して出入りするベーンと、これ
らの円筒状ロータとベーンとを取り囲むカムリン
グとを具備し、かつベーンは炉焼結あるいはホツ
トプレス焼結セラミツクス体からなり、カムリン
グは反応焼結セラミツクス体からなることを特徴
とする。本発明に適するセラミツクス焼結体とし
ては窒化ケイ素、窒化アルミニウム、炭化ケイ
素、酸化ジルコニウムが考えられる。[Summary of the Invention] The rotating and sliding structure of the present invention includes: a cylindrical rotor having a groove formed in the length direction on its outer peripheral surface; a vane that smoothly slides in and out of the groove of the cylindrical rotor; It is characterized by comprising a cam ring surrounding the cylindrical rotor and the vanes, the vanes being made of furnace sintered or hot press sintered ceramics, and the cam rings being made of reaction sintered ceramics. Possible ceramic sintered bodies suitable for the present invention include silicon nitride, aluminum nitride, silicon carbide, and zirconium oxide.
［発明の実施例］ 次に本発明の実施例について説明する。[Embodiments of the invention] Next, examples of the present invention will be described.
図は本発明の一実施例を示す断面図である。 The figure is a sectional view showing one embodiment of the present invention.
図において符号１は円筒状ロータであり、この
円筒状ロータには６個の溝２が形成されている。
この溝２にはベーン３が摺動して出入りしてお
り、このベーン３に内面を接触させて楕円状のカ
ムリング４が円筒状ロータ１の外周に設置されて
いる。 In the figure, reference numeral 1 indicates a cylindrical rotor, and six grooves 2 are formed in this cylindrical rotor.
A vane 3 slides in and out of the groove 2, and an elliptical cam ring 4 is installed on the outer periphery of the cylindrical rotor 1 with its inner surface in contact with the vane 3.
しかして本発明においては、ベーン３は摺動性
に優れ、遠心力の大きいものが望ましいので、比
重がかなり大きく、強度の大きい炉焼結あるいは
ホツトプレス焼結セラミツクス体、例えば酸化ジ
ルコニウム（比重６、強度60Kg／mm2）、窒化ケイ
素が好ましく、特に酸化ジルコニウムからなるセ
ラミツクス体が適している。このセラミツクス体
は、セラミツクス粉末に焼結助剤を添加し、成形
した後、窒素雰囲気中で1500〜1800℃で焼結する
ことにより得られる。 However, in the present invention, it is desirable that the vane 3 has excellent sliding properties and a large centrifugal force, so it is made of a furnace sintered or hot press sintered ceramic body with a considerably high specific gravity and high strength, such as zirconium oxide (specific gravity 6, Silicon nitride is preferred , and a ceramic body made of zirconium oxide is particularly suitable. This ceramic body is obtained by adding a sintering aid to ceramic powder, molding it, and then sintering it at 1500 to 1800°C in a nitrogen atmosphere.
また、カムリング４は必要形状のものを得るの
に研削加工を施して製造する必要があるので、加
工のし易さの点から反応焼結セラミツクス体、特
に反応焼結炭化ケイ素、反応焼結窒化ケイ素のセ
ラミツクス体が適している。この反応焼結セラミ
ツクス体は、例えば金属Siを窒素雰囲気中または
炭素中で1300〜1500℃に加熱して得られるもので
ある。 In addition, since the cam ring 4 needs to be manufactured by grinding to obtain the required shape, from the viewpoint of ease of processing, it is recommended to use a reaction sintered ceramic body, especially reaction sintered silicon carbide, reaction sintered nitride. A silicon ceramic body is suitable. This reactive sintered ceramic body is obtained, for example, by heating metal Si to 1300 to 1500°C in a nitrogen atmosphere or carbon.
本発明において、ロータの回転中、ベーンは遠
心力によりカムリングの内面を擦つて動き、２つ
のベーンに挾まれた液体はポンプの吐出口に運ば
れていく。 In the present invention, while the rotor is rotating, the vanes move by rubbing against the inner surface of the cam ring due to centrifugal force, and the liquid sandwiched between the two vanes is carried to the discharge port of the pump.
このように構成してなる回転摺動構造体は、ベ
ーンおよびカムリングの部分が耐食性、耐摩耗性
に優れたセラミツクス体で形成されているので、
水系の流体を使用した油圧機器に使用する場合に
も耐久性に優れ、また排水ポンプとして使用して
も腐食の問題がなく、長時間使用することができ
る。 In the rotating sliding structure constructed in this way, the vane and cam ring portions are made of a ceramic body with excellent corrosion resistance and wear resistance.
It has excellent durability when used in hydraulic equipment that uses water-based fluids, and can be used for long periods of time without any corrosion problems when used as a drainage pump.
また、ベーンを比重、強度ともに大きな炉焼結
体あるいはホツトプレス焼結体で形成することに
より、摺動性に優れかつ遠心力の大きなベーンを
得ることができ、またカムリングを加工のし易い
反応焼結体で形成することにより、比較的複雑形
状のカムリングを切削加工により容易に製造する
ことができる。 In addition, by forming the vane with a furnace sintered body or a hot-pressed sintered body with high specific gravity and strength, it is possible to obtain a vane with excellent sliding properties and a large centrifugal force. By forming the cam ring as a solid body, a cam ring having a relatively complicated shape can be easily manufactured by cutting.
［発明の効果］
以上の説明から明らかなように、本発明によれ
ば、耐食性および耐摩耗性に優れた耐久性のある
回転摺動構造体を提供することができる。[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to provide a durable rotating sliding structure with excellent corrosion resistance and wear resistance.
さらに、ベーンとカムリングにそれぞれの諸特
性に応じて焼結方法の異なるセラミツクス焼結体
を適用することにより、各部品の諸特性を向上さ
せた高性能の回転摺動構造体を提供することがで
きる。 Furthermore, by applying ceramic sintered bodies that are sintered using different methods depending on the characteristics of each vane and cam ring, it is possible to provide a high-performance rotating and sliding structure with improved characteristics of each component. can.
図は本発明の回転摺動構造体の一実施例を示す
断面図である。
１……円筒状ロータ、２……溝、３……ベー
ン、４……カムリング。
The figure is a sectional view showing an embodiment of the rotating sliding structure of the present invention. 1... Cylindrical rotor, 2... Groove, 3... Vane, 4... Cam ring.
Claims (1)
タと、この筒状ロータの溝に円滑に摺動して出入
りするベーンと、前記筒状ロータとベーンとを取
り囲むカムリングとを具備し、かつ前記ベーンは
炉焼結あるいはホツトプレス焼結セラミツクス体
からなり、前記カムリングは反応焼結セラミツク
ス体からなることを特徴とする回転摺動構造体。 ２ セラミツクス体は、窒化ケイ素、窒化アルミ
ニウム、炭化ケイ素及び酸化ジルコニウムのいず
れかである特許請求の範囲第１項記載の回転摺動
構造体。 ３ 少なくともベーンは、酸化ジルコニウムから
なる特許請求の範囲第２項記載の回転摺動構造
体。 ４ 回転摺動構造体は、ベーンポンプである特許
請求の範囲第１項記載の回転摺動構造体。[Scope of Claims] 1. A cylindrical rotor having a groove formed in the length direction on its outer peripheral surface, a vane that smoothly slides in and out of the groove of the cylindrical rotor, and the cylindrical rotor and the vane. A rotating sliding structure comprising a surrounding cam ring, the vane being made of a furnace sintered or hot press sintered ceramic body, and the cam ring being made of a reaction sintered ceramic body. 2. The rotating sliding structure according to claim 1, wherein the ceramic body is made of silicon nitride, aluminum nitride, silicon carbide, or zirconium oxide. 3. The rotating sliding structure according to claim 2, wherein at least the vane is made of zirconium oxide. 4. The rotating sliding structure according to claim 1, wherein the rotating sliding structure is a vane pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22443882A JPS59115484A (en) | 1982-12-21 | 1982-12-21 | Rotary sliding structural body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22443882A JPS59115484A (en) | 1982-12-21 | 1982-12-21 | Rotary sliding structural body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59115484A JPS59115484A (en) | 1984-07-03 |
| JPH0545799B2 true JPH0545799B2 (en) | 1993-07-12 |
Family
ID=16813768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22443882A Granted JPS59115484A (en) | 1982-12-21 | 1982-12-21 | Rotary sliding structural body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59115484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015221469A1 (en) | 2014-11-04 | 2016-05-04 | Denso Corporation | ENGINE CONTROL UNIT |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2703213B2 (en) * | 1984-06-18 | 1998-01-26 | 株式会社リコー | Negatively chargeable toner for development |
| JPH01142584U (en) * | 1988-03-25 | 1989-09-29 | ||
| US5226798A (en) * | 1989-11-17 | 1993-07-13 | Eisenmann Siegfried A | Gear ring pump for internal-combustion engines and automatic transmissions |
| US6629829B1 (en) | 1998-09-08 | 2003-10-07 | Ebara Corporation | Vane type rotary machine |
| KR100749350B1 (en) * | 2005-06-11 | 2007-08-21 | 주식회사 유진산기 | Fire Pump Vacuum Pump |
| PL2085619T3 (en) * | 2008-02-01 | 2011-08-31 | Electrolux Home Products Corp Nv | Household appliance for washing articles |
| CN102562582B (en) * | 2012-03-05 | 2015-02-25 | 安徽凯特泵业有限公司 | Silicon-steel coating liquid conveying pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5566688A (en) * | 1978-11-15 | 1980-05-20 | Diesel Kiki Co Ltd | Coolant compressor |
| JPS5776285A (en) * | 1980-10-30 | 1982-05-13 | Nippon Piston Ring Co Ltd | Vane for use in rotary fluid pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111217U (en) * | 1978-01-24 | 1979-08-04 |
-
1982
- 1982-12-21 JP JP22443882A patent/JPS59115484A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5566688A (en) * | 1978-11-15 | 1980-05-20 | Diesel Kiki Co Ltd | Coolant compressor |
| JPS5776285A (en) * | 1980-10-30 | 1982-05-13 | Nippon Piston Ring Co Ltd | Vane for use in rotary fluid pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015221469A1 (en) | 2014-11-04 | 2016-05-04 | Denso Corporation | ENGINE CONTROL UNIT |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59115484A (en) | 1984-07-03 |
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