JPH0377072U - - Google Patents
Info
- Publication number
- JPH0377072U JPH0377072U JP13761889U JP13761889U JPH0377072U JP H0377072 U JPH0377072 U JP H0377072U JP 13761889 U JP13761889 U JP 13761889U JP 13761889 U JP13761889 U JP 13761889U JP H0377072 U JPH0377072 U JP H0377072U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic pump
- cylinder
- outer periphery
- thermal conductivity
- 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.)
- Granted
Links
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 229910000760 Hardened steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図はこの考案による油圧ポンプまたはモー
タの縦断面図を示す図、第２図は従来の構造を示
す図である。
１……ハウジング、２……カバー、３……シリ
ンダブロツク、４……ピストンシユー、５……回
転軸、６……入口、７……出口、８……バネ、Ｐ
Ｈ……ピストン本体、ＰＳ……ピストンスリーブ
、ＰＬ……止め輪。
FIG. 1 is a longitudinal sectional view of a hydraulic pump or motor according to this invention, and FIG. 2 is a diagram showing a conventional structure. 1... Housing, 2... Cover, 3... Cylinder block, 4... Piston shoe, 5... Rotating shaft, 6... Inlet, 7... Outlet, 8... Spring, P
H...Piston body, PS...Piston sleeve, PL...Retaining ring.
Claims (1)
や銅合金等を用いると共に、シリンダに摺接する
外周部に硬度の高い焼入鋼等で作つたスリーブを
装着したピストンを用いることを特徴とするピス
トン形油圧ポンプまたはモータ。 A piston-type hydraulic pump characterized by using aluminum alloy, copper alloy, etc. with good thermal conductivity as a material, and using a piston equipped with a sleeve made of hardened steel or the like with high hardness on the outer periphery that makes sliding contact with the cylinder. Or a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989137618U JP2553032Y2 (en) | 1989-11-28 | 1989-11-28 | Axial piston pump or motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989137618U JP2553032Y2 (en) | 1989-11-28 | 1989-11-28 | Axial piston pump or motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0377072U true JPH0377072U (en) | 1991-08-01 |
| JP2553032Y2 JP2553032Y2 (en) | 1997-11-05 |
Family
ID=31684766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989137618U Expired - Lifetime JP2553032Y2 (en) | 1989-11-28 | 1989-11-28 | Axial piston pump or motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553032Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6293185B1 (en) * | 2000-02-28 | 2001-09-25 | Sauer-Danfoss Inc. | Piston for a hydrostatic cylinder block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584779U (en) * | 1981-07-02 | 1983-01-12 | 株式会社丸山製作所 | reciprocating pump plunger |
| JPS628460U (en) * | 1985-06-29 | 1987-01-19 | ||
| JPS62292967A (en) * | 1986-06-13 | 1987-12-19 | Toshiba Corp | Air cylinder device |
-
1989
- 1989-11-28 JP JP1989137618U patent/JP2553032Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584779U (en) * | 1981-07-02 | 1983-01-12 | 株式会社丸山製作所 | reciprocating pump plunger |
| JPS628460U (en) * | 1985-06-29 | 1987-01-19 | ||
| JPS62292967A (en) * | 1986-06-13 | 1987-12-19 | Toshiba Corp | Air cylinder device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2553032Y2 (en) | 1997-11-05 |