JPS63168363U - - Google Patents
Info
- Publication number
- JPS63168363U JPS63168363U JP13681387U JP13681387U JPS63168363U JP S63168363 U JPS63168363 U JP S63168363U JP 13681387 U JP13681387 U JP 13681387U JP 13681387 U JP13681387 U JP 13681387U JP S63168363 U JPS63168363 U JP S63168363U
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- groove
- piston
- cylinder bore
- motor
- 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
- 229910000669 Chrome steel Inorganic materials 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Reciprocating Pumps (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は従来例の截断側面図、第２ａ図乃至第
２ｃ図は従来のピストンリングの斜視図、第３図
はピストンリングの作動状態の説明図、第４図は
本考案の実施例の截断側面図、第５図は本考案の
ピストンリングの斜視図、第６図は本考案の他の
実施例の平面図、第７図及び第８図は本考案の更
に他の実施例の側面図である。
１……環状体、２……外径、３……内径、９…
…破断部、１２……シリンダボア、１３……ピス
トン、１４……凹溝、１５……ピストンリング。
Fig. 1 is a cutaway side view of a conventional example, Figs. 2a to 2c are perspective views of a conventional piston ring, Fig. 3 is an explanatory diagram of the operating state of the piston ring, and Fig. 4 is an illustration of an embodiment of the present invention. 5 is a perspective view of the piston ring of the present invention, FIG. 6 is a plan view of another embodiment of the present invention, and FIGS. 7 and 8 are side views of still other embodiments of the present invention. It is a diagram. 1...Annular body, 2...Outer diameter, 3...Inner diameter, 9...
...Broken portion, 12...Cylinder bore, 13...Piston, 14...Concave groove, 15...Piston ring.
Claims (1)
を往復動するピストンの外周に、その円周方向に
沿つて凹溝を形成してそこにクロム鋼その他の比
較的硬い材料で形成した環状のピストンリングを
嵌着するようにしたものに於いて、該ピストンリ
ングを、該シリンダボアの内径に略等しい外径を
有し且つ前記凹溝の外径と同等以上の内径を有す
るクロム鋼その他の比較的硬い材料で形成した環
状体の１個所を衝撃その他により割れ面が比較的
粗面となるように破断部を形成したもので構成し
たことを特徴とする油圧ピストンポンプ、モータ
用ピストンリング。 In a hydraulic piston pump, a groove is formed along the circumference of the piston that reciprocates within the cylinder bore of the motor, and an annular piston ring made of chrome steel or other relatively hard material is fitted into the groove. In the piston ring, the piston ring is made of chrome steel or other relatively hard material having an outer diameter approximately equal to the inner diameter of the cylinder bore and an inner diameter equal to or greater than the outer diameter of the groove. A piston ring for a hydraulic piston pump or motor, characterized in that the annular body has a fractured part formed at one place so that the cracked surface becomes a relatively rough surface due to impact or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13681387U JPS63168363U (en) | 1987-09-09 | 1987-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13681387U JPS63168363U (en) | 1987-09-09 | 1987-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63168363U true JPS63168363U (en) | 1988-11-02 |
Family
ID=31040278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13681387U Pending JPS63168363U (en) | 1987-09-09 | 1987-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63168363U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007064346A (en) * | 2005-08-31 | 2007-03-15 | Nippon Piston Ring Co Ltd | Pressure ring and its manufacturing method |
| WO2012113351A1 (en) * | 2011-02-25 | 2012-08-30 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
| JP2020051276A (en) * | 2018-09-25 | 2020-04-02 | 日立建機株式会社 | Inclined shaft type liquid pressure rotary machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128047A (en) * | 1974-03-29 | 1975-10-08 |
-
1987
- 1987-09-09 JP JP13681387U patent/JPS63168363U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128047A (en) * | 1974-03-29 | 1975-10-08 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007064346A (en) * | 2005-08-31 | 2007-03-15 | Nippon Piston Ring Co Ltd | Pressure ring and its manufacturing method |
| US8627758B2 (en) | 2006-04-07 | 2014-01-14 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
| WO2012113351A1 (en) * | 2011-02-25 | 2012-08-30 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
| JP2020051276A (en) * | 2018-09-25 | 2020-04-02 | 日立建機株式会社 | Inclined shaft type liquid pressure rotary machine |