JPH0440168U - - Google Patents
Info
- Publication number
- JPH0440168U JPH0440168U JP8197990U JP8197990U JPH0440168U JP H0440168 U JPH0440168 U JP H0440168U JP 8197990 U JP8197990 U JP 8197990U JP 8197990 U JP8197990 U JP 8197990U JP H0440168 U JPH0440168 U JP H0440168U
- Authority
- JP
- Japan
- Prior art keywords
- suction
- bore
- bores
- discharge port
- piston 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
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案の一実施例であつて弁板の摺接
封止面側を示す側面図、第２図は同じくボア中心
の拡大部分断面図、第３図は従来のアキシヤルピ
ストンポンプの全容を示す断面図、第４図は同じ
く従来のシリンダブロツクの摺接封止面を示す側
面図、第５図は同ボア中心の局部断面図である。
２０……シリンダブロツク、２１……摺接封止
面、２３……ボア開口、３０……弁板、３１……
摺接封止面、３２……吸入ポート、３３……吐出
ポート、３４……シールランド、３５……サポー
トランド、３６……蓄圧溝。
Fig. 1 is a side view showing one embodiment of the present invention, showing the sliding sealing surface side of the valve plate, Fig. 2 is an enlarged partial sectional view of the center of the bore, and Fig. 3 is a conventional axial piston pump. FIG. 4 is a side view showing the sliding sealing surface of the conventional cylinder block, and FIG. 5 is a partial sectional view at the center of the bore. 20... Cylinder block, 21... Sliding sealing surface, 23... Bore opening, 30... Valve plate, 31...
Sliding sealing surface, 32...Suction port, 33...Discharge port, 34...Seal land, 35...Support land, 36...Pressure accumulation groove.
Claims (1)
の周りに該軸心とほぼ平行な複数のボアを有し、
各ボアにはシユーを介して斜板と係留するピスト
ンが挿嵌されるとともに、これらボアの開口端面
を摺接封止する弁板には、ボア開口の回転軌跡と
符合して対向円弧状をなす吸入及び吐出ポートが
穿設され、該両ポートはそれぞれ吸入及び吐出口
端と整合すべく構成されたアキシヤルピストンポ
ンプにおいて、上記シリンダブロツクと弁板との
相対的な摺接封止面の少なくとも一方が、上記吸
入及び吐出ポートの内外周域を囲包する環状のシ
ールランドと、該摺接封止面の外周縁に微小な幅
員をもつて形成された同じく環状のサポートラン
ドと、上記両ライドの挟間領域を占める蓄圧溝と
を備えてなるアキシヤルピストンポンプ。 A cylinder block that rotates together with the drive shaft has a plurality of bores approximately parallel to the axis around the axis,
A piston that is moored to the swash plate is inserted into each bore through a shoe, and a valve plate that slides and seals the opening end surfaces of these bores has an opposing circular arc shape that matches the rotation locus of the bore opening. In an axial piston pump, a suction port and a discharge port are formed, and the ports are configured to be aligned with the suction and discharge port ends, respectively. At least one of the above includes an annular seal land surrounding the inner and outer peripheries of the suction and discharge ports, and an annular support land formed with a minute width on the outer periphery of the sliding sealing surface; An axial piston pump comprising a pressure accumulating groove that occupies the area between both rides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8197990U JPH0440168U (en) | 1990-08-01 | 1990-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8197990U JPH0440168U (en) | 1990-08-01 | 1990-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440168U true JPH0440168U (en) | 1992-04-06 |
Family
ID=31628388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8197990U Pending JPH0440168U (en) | 1990-08-01 | 1990-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440168U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6034570B2 (en) * | 1977-09-27 | 1985-08-09 | 旭化成株式会社 | Purification method of polyphenylene ether |
-
1990
- 1990-08-01 JP JP8197990U patent/JPH0440168U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6034570B2 (en) * | 1977-09-27 | 1985-08-09 | 旭化成株式会社 | Purification method of polyphenylene ether |
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