JPH036069U - - Google Patents
Info
- Publication number
- JPH036069U JPH036069U JP6540289U JP6540289U JPH036069U JP H036069 U JPH036069 U JP H036069U JP 6540289 U JP6540289 U JP 6540289U JP 6540289 U JP6540289 U JP 6540289U JP H036069 U JPH036069 U JP H036069U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- motor
- cylinder
- hydraulic pump
- cylindrical portion
- 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
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
第１図は本考案の実施例を示すシール装置の断
面図、第２図は斜軸式油圧ポンプ・モータの一例
を示す断面図、第３図は従来のシール装置の断面
図である。
１……ハウジング、２…シリンダーブロツク、
３……シリンダー孔、４……ピストン、５……シ
リンダー室、２１……筒状部、２１ａ……環状突
起。
FIG. 1 is a sectional view of a seal device according to an embodiment of the present invention, FIG. 2 is a sectional view of an example of a diagonal shaft type hydraulic pump/motor, and FIG. 3 is a sectional view of a conventional seal device. 1...Housing, 2...Cylinder block,
3... Cylinder hole, 4... Piston, 5... Cylinder chamber, 21... Cylindrical portion, 21a... Annular projection.
Claims (1)
のシリンダー孔３内にピストン４を嵌挿してシリ
ンダー室５を形成し、シリンダーブロツク２の回
転によつてピストン４を摺動させてシリンダー室
５内の容積を増減するようにした油圧ポンプ・モ
ータにおいて、 前記ピストン４の基部に薄肉の筒状部２１を形
成し、その筒状部２１の外周面に環状突起２１ａ
を形成し、その環状突起２１ａをシリンダー孔３
の内周面３ａに押し付けてシールするようにした
油圧ポンプ・モータのピストンシール装置。[Scope of claim for utility model registration] Cylinder block 2 provided in housing 1
A hydraulic pump/motor in which a piston 4 is fitted into a cylinder hole 3 to form a cylinder chamber 5, and the volume inside the cylinder chamber 5 is increased or decreased by sliding the piston 4 by rotating the cylinder block 2. A thin cylindrical portion 21 is formed at the base of the piston 4, and an annular projection 21a is formed on the outer peripheral surface of the cylindrical portion 21.
, and the annular projection 21a is inserted into the cylinder hole 3.
A piston seal device for a hydraulic pump/motor that is pressed against the inner circumferential surface 3a of the hydraulic pump/motor for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6540289U JPH036069U (en) | 1989-06-06 | 1989-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6540289U JPH036069U (en) | 1989-06-06 | 1989-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036069U true JPH036069U (en) | 1991-01-22 |
Family
ID=31597199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6540289U Pending JPH036069U (en) | 1989-06-06 | 1989-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006233480A (en) * | 2005-02-23 | 2006-09-07 | San-Ei Faucet Mfg Co Ltd | Slime generation preventive tool |
| JP2007154828A (en) * | 2005-12-07 | 2007-06-21 | Toyota Motor Corp | Plunger pump |
-
1989
- 1989-06-06 JP JP6540289U patent/JPH036069U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006233480A (en) * | 2005-02-23 | 2006-09-07 | San-Ei Faucet Mfg Co Ltd | Slime generation preventive tool |
| JP2007154828A (en) * | 2005-12-07 | 2007-06-21 | Toyota Motor Corp | Plunger pump |