JPH021476U - - Google Patents
Info
- Publication number
- JPH021476U JPH021476U JP7726388U JP7726388U JPH021476U JP H021476 U JPH021476 U JP H021476U JP 7726388 U JP7726388 U JP 7726388U JP 7726388 U JP7726388 U JP 7726388U JP H021476 U JPH021476 U JP H021476U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- swash plate
- hole
- shoe
- plate type
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図、第２図は本考案の実施例を示す正面図
、断面図、第３図は斜板式ピストンポンプ・モー
タの断面図、第４図はピストンシユー部分の拡大
図、第５図は従来の油圧バランス用溝の説明図、
第６図はその圧力分布説明図である。
４はシリンダー孔、５はピストン、６は斜板、
７はピストンシユー、１１は孔、１２は孔、１３
は油圧バランス用溝、１６は円形溝、１８は径方
向溝。
Figures 1 and 2 are a front view and a sectional view showing an embodiment of the present invention, Figure 3 is a sectional view of a swash plate type piston pump/motor, Figure 4 is an enlarged view of the piston shoe section, and Figure 5 is a conventional An explanatory diagram of the hydraulic balance groove of
FIG. 6 is an explanatory diagram of the pressure distribution. 4 is the cylinder hole, 5 is the piston, 6 is the swash plate,
7 is a piston shoe, 11 is a hole, 12 is a hole, 13
1 is a hydraulic balance groove, 16 is a circular groove, and 18 is a radial groove.
Claims (1)
つて摺動する斜板式ピストンポンプモータのピス
トンシユーにおいて、前記ピストンシユーの軸心
に、ピストン５の孔１１を経てシリンダー孔４に
連通する孔１２を穿孔すると共に、斜板６と対向
する背面７ｂに、前記孔１２と連通した同心円状
の円形溝１６と、該円形溝１６と連続した径方向
溝１８を放射状に複数形成したことを特徴とする
斜板式ピストンポンプ・モータのピストンシユー
。 In a piston shoe of a swash plate type piston pump motor that is swingably connected to a piston 5 and slides along a swash plate 6, a hole 12 that communicates with the cylinder hole 4 through a hole 11 of the piston 5 is provided at the axis of the piston shoe. A plurality of concentric circular grooves 16 communicating with the holes 12 and a plurality of radial grooves 18 continuous with the circular grooves 16 are formed radially on the back surface 7b facing the swash plate 6. Piston shoe of swash plate type piston pump/motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7726388U JPH021476U (en) | 1988-06-13 | 1988-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7726388U JPH021476U (en) | 1988-06-13 | 1988-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH021476U true JPH021476U (en) | 1990-01-08 |
Family
ID=31302259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7726388U Pending JPH021476U (en) | 1988-06-13 | 1988-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052512A1 (en) * | 2009-10-27 | 2011-05-05 | 日立建機株式会社 | Axial piston hydraulic rotating machine |
-
1988
- 1988-06-13 JP JP7726388U patent/JPH021476U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052512A1 (en) * | 2009-10-27 | 2011-05-05 | 日立建機株式会社 | Axial piston hydraulic rotating machine |
| JP2011094490A (en) * | 2009-10-27 | 2011-05-12 | Hitachi Constr Mach Co Ltd | Axial piston type hydraulic rotary machine |
| CN102713285A (en) * | 2009-10-27 | 2012-10-03 | 日立建机株式会社 | Axial piston hydraulic rotating machine |