JPS60261992A - Impeller for regenerative pump - Google Patents
Impeller for regenerative pumpInfo
- Publication number
- JPS60261992A JPS60261992A JP11644284A JP11644284A JPS60261992A JP S60261992 A JPS60261992 A JP S60261992A JP 11644284 A JP11644284 A JP 11644284A JP 11644284 A JP11644284 A JP 11644284A JP S60261992 A JPS60261992 A JP S60261992A
- Authority
- JP
- Japan
- Prior art keywords
- metal disk
- impeller
- molding
- grooves
- metal
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は１例えば、自動車用エンジンの電子制御式燃料
噴射装置の燃料供給ポンプに好適なウェスコポンプのイ
ンペラの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to, for example, an improvement in the impeller of a Wesco pump suitable for a fuel supply pump of an electronically controlled fuel injection device for an automobile engine.
゛ 〔発明の背景〕
従来のウェスコポンプのインペラは、特開昭５８−２４
９５号の第１図及び第２図に示されるように、金属円板
の外周縁部の全周にわたり金属円板の軸心を中心とする
放射方向に、金属円板と同材料で機械加工により切削形
成された羽根溝を有している。しかし、この羽根溝の形
状を得るための機械加工は作業能率が低く作業工数を多
く要するものとなっていた。また、インペラ全体を合成
樹脂を用いて型成形により形成する方法もあるがインペ
ラのように板状のものにおいては″そり″を生じ易い。゛ [Background of the invention] The impeller of the conventional Wesco pump was disclosed in Japanese Patent Application Laid-open No. 58-24.
As shown in Figures 1 and 2 of No. 95, the same material as the metal disc is machined in the radial direction around the axis of the metal disc over the entire circumference of the outer peripheral edge of the metal disc. It has a blade groove formed by cutting. However, machining to obtain the shape of the blade groove has low work efficiency and requires a large number of man-hours. There is also a method of forming the entire impeller by molding using synthetic resin, but in a plate-shaped impeller, "warping" is likely to occur.
このため、軸方向端面の平面度、即ち、軸方向厚さの寸
法精度が悪くなり、ポンプ効率が著しく低下する欠点が
あった。For this reason, the flatness of the axial end face, that is, the dimensional accuracy of the axial thickness deteriorates, resulting in a drawback that the pump efficiency is significantly reduced.
本発明は上記の状況に鑑みなされたものであり、作業工
数を低減し生産性を向上できるとともに高いポンプ効率
が得ら゛れるウェスコポンプのインペラを提供すること
を目的としたものである。The present invention was made in view of the above-mentioned situation, and an object of the present invention is to provide an impeller for a Wesco pump that can reduce the number of working steps, improve productivity, and provide high pump efficiency.
〔発明の概要Ｊ
本発明のウェスコポンプのインペラは、軸に回転駆動さ
れる金属円板の外周縁部の全周にわたり上記金属円板の
軸心を中心とする放射方向に羽根溝を設けてなり、上記
羽根溝が、上記金属円板に対し異種材料を成形固着し形
成されているものである。[Summary of the Invention J The impeller of the Wesco pump of the present invention has blade grooves provided in a radial direction around the axial center of the metal disk over the entire circumference of the outer peripheral edge of a metal disk that is rotatably driven by a shaft. The blade groove is formed by molding and fixing different materials to the metal disc.
以下本発明のウェスコポンプのインペラを実施例を用い
第１図、第２図により説明する。第１図は斜視図、第２
図は第１図のＩＩ−ＴＩ矢視断面図である。１は金属円
板であり主たる強度部材を構成するため鉄板を打抜きに
より形成され、中央部に回転軸（図示せず）の回転力を
伝達するための嵌合孔２が開口され、嵌合孔２には凸部
の係止部４を有している。係止部４は回転力を伝えるキ
ー等の部品に合せて凹部とすることもできる。嵌合孔２
は円形以外の孔を有する場合においてもプレス−打抜き
によって製作可能であり、金属円板１の加工は高い生産
性を有し製作が容易である５、３は羽根溝であり、金属
円板１の外周縁部の全周にわたす金属円板１の軸心を中
心に放射方向に合成樹脂材により型成形を介し金属円板
１よりも軸方向厚さを厚く形成されている。尚このよう
に軸方向に厚く形成することにより金属円板は平板のま
まとして固着部を薄くする必要がなく、作業を容易にす
ることができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The impeller of the Wesco pump of the present invention will be explained below using an example with reference to FIGS. 1 and 2. Figure 1 is a perspective view, Figure 2
The figure is a sectional view taken along the line II-TI in FIG. 1. Reference numeral 1 denotes a metal disk, which is formed by punching an iron plate to constitute the main strength member, and has a fitting hole 2 opened in the center for transmitting the rotational force of a rotating shaft (not shown). 2 has a locking portion 4 which is a convex portion. The locking portion 4 can also be formed into a recessed portion to fit a component such as a key that transmits rotational force. Fitting hole 2
can be manufactured by press-punching even if it has a hole other than circular, and the processing of the metal disk 1 has high productivity and is easy to manufacture. 5 and 3 are blade grooves, and the metal disk 1 The synthetic resin material is molded in a radial direction around the axial center of the metal disk 1 over the entire circumference of the outer peripheral edge of the metal disk 1 to have a thicker thickness in the axial direction than the metal disk 1. By forming the metal disk thickly in the axial direction in this manner, the metal disk remains a flat plate and there is no need to make the fixed portion thinner, thereby making the work easier.
一方、ウェスコポンプのインペラに要求される軸方向の
寸法精度は主に羽根溝３に近い部分であり、金属円板１
の中心寄りの部分では余り効率に影響することはない。On the other hand, the axial dimensional accuracy required for the impeller of the Wesco pump is mainly in the part near the blade groove 3, and the metal disc 1
It does not affect the efficiency much in the part near the center.
従って、精度を必要としない中心付近としては金属円板
１のままとしても問題はない。また、ウェスコポンプの
動作原理は、例えば１日本機械学界２機械工学便覧第９
編４．３に示されるように、羽根溝３内に発生する乱れ
流動が重要な要因となるが、この乱れ流動は羽根溝３内
の面粗さ度が小さい程活発となり、ぼり・かえりなどは
その妨げとなる。そして、本実施例のインペラの羽根溝
３の形成においては、機械によ６？Ｊｌ’ｌＪ、 ［１
（１０ｒ、ＩＰｌ−Ｉｆｆ、 ％−／ＬｚＦＭ ’形に
よるので高い生産性を持つことができるとともに、羽根
溝３内の面粗さ度が小さいため乱れ流動を活発なものと
することができる。Therefore, there is no problem even if the metal disk 1 is used as the metal disk 1 near the center where precision is not required. In addition, the operating principle of the Wesco pump can be found in, for example, 1 Japan Society of Mechanical Engineers 2 Mechanical Engineering Handbook 9
As shown in Section 4.3, the turbulent flow that occurs within the blade groove 3 is an important factor, and this turbulent flow becomes more active as the surface roughness within the blade groove 3 decreases, causing burrs, burrs, etc. is a hindrance. In forming the impeller blade grooves 3 of this embodiment, a machine is used to form the impeller blade grooves 3. Jl'lJ, [1
(10r, IPl-Iff, %-/LzFM' type), it is possible to have high productivity, and since the surface roughness in the blade groove 3 is small, the turbulent flow can be made active.
このように本実施例のウェスコポンプのインペラは１羽
根溝を金属円板に対し異種材料の合成樹脂材により成形
固着したので、従来のインペラ全体を樹脂で形成する場
合のよう−に平板部の″そり″現象が生じることもなく
軸方向寸法が高い精度を有し、作業工数を低減し高い生
産性を有すると共に、羽根溝部分が、面粗さが細かく、
著しくポンプ効率を向上できる。In this way, in the impeller of the Wesco pump of this example, the single blade groove is molded and fixed to the metal disk using a synthetic resin material of a different material. It has high accuracy in axial dimension without causing any "warpage" phenomenon, reduces work man-hours and has high productivity, and the blade groove part has fine surface roughness.
Pump efficiency can be significantly improved.
上記実施例は、金属円板の外周縁部に、胡脂材のモール
ド成形によって羽根溝を形成の場合について述べたが、
ゴムまたはダイキャステングにより成形しても作用効果
は同じである。In the above embodiment, the blade grooves were formed on the outer peripheral edge of the metal disk by molding sesame material.
Even if it is molded using rubber or die casting, the effect is the same.
以上記述した如く本発明のウェスコポンプのインペラは
、作業工数を低減、し生産性を向上できる第１図は本発
明のウェスコポンプのインペラの実施例の斜視図、第２
図は第１図のｎ−ｎ矢視断面図である。As described above, the impeller of the Wesco pump of the present invention can reduce the number of work steps and improve productivity. Fig. 1 is a perspective view of an embodiment of the impeller of the Wesco pump of the present invention,
The figure is a sectional view taken along the line nn in FIG. 1.
１・・・金属円板、２・・・羽根溝。1...Metal disk, 2...Blade groove.
代理人 弁理士 高橋明夫Agent: Patent Attorney Akio Takahashi
Claims (1)
たり上記金属円板の軸心を中心とする放射方向に羽根溝
を設けたものにおいて、上記羽根溝が、上記金属円板に
対し異種材料を成形固着し形成されていることを特徴と
するウェスコポンプのインペラ。 ２、上記異種材料が合成樹脂材により形成されている特
許請求の範囲第１項記載のウェスコポンプのインペラ。 ３、上記羽根溝形成部分が上記金属円板より軸方向厚さ
が厚く形成されている特許請求の範囲第１項記載のウェ
スコポンプのインペラ。[Scope of Claims] 1. In a metal disk rotatably driven by a shaft, blade grooves are provided in a radial direction around the axial center of the metal disk over the entire circumference of the outer periphery, wherein the blade grooves are An impeller for a Wesco pump, characterized in that the impeller is formed by molding and fixing different materials to the metal disc. 2. The impeller for a Wesco pump according to claim 1, wherein the different material is made of a synthetic resin material. 3. The impeller for a Wesco pump according to claim 1, wherein the blade groove forming portion is formed to be thicker in the axial direction than the metal disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11644284A JPS60261992A (en) | 1984-06-08 | 1984-06-08 | Impeller for regenerative pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11644284A JPS60261992A (en) | 1984-06-08 | 1984-06-08 | Impeller for regenerative pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60261992A true JPS60261992A (en) | 1985-12-25 |
Family
ID=14687206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11644284A Pending JPS60261992A (en) | 1984-06-08 | 1984-06-08 | Impeller for regenerative pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60261992A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007071204A (en) * | 2005-09-05 | 2007-03-22 | Duerr Dental Gmbh & Co Kg | Impeller for sucking machine |
| JP2016027262A (en) * | 2014-06-30 | 2016-02-18 | 日立アプライアンス株式会社 | Vortex flow type pump unit |
-
1984
- 1984-06-08 JP JP11644284A patent/JPS60261992A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007071204A (en) * | 2005-09-05 | 2007-03-22 | Duerr Dental Gmbh & Co Kg | Impeller for sucking machine |
| JP2016027262A (en) * | 2014-06-30 | 2016-02-18 | 日立アプライアンス株式会社 | Vortex flow type pump unit |
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