JPS6432076A - Piston pump or motor - Google Patents
Piston pump or motorInfo
- Publication number
- JPS6432076A JPS6432076A JP62187063A JP18706387A JPS6432076A JP S6432076 A JPS6432076 A JP S6432076A JP 62187063 A JP62187063 A JP 62187063A JP 18706387 A JP18706387 A JP 18706387A JP S6432076 A JPS6432076 A JP S6432076A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder block
- port
- valve plate
- pressing force
- width
- 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)
- Hydraulic Motors (AREA)
Abstract
PURPOSE:To keep pressing force of a cylinder block to a valve plate constant by installing a difference in width between both high and low pressure ports formed in the valve plate spherically contacting with the cylinder block and a port formed in the cylinder block. CONSTITUTION:A cylinder bore chamber of a cylinder block 2 is interconnected to the side of a valve plate 4 via a port 9. Each width of a high pressure port 11 and a low pressure port 12 formed in the valve plate 4 is made wider than that of the port 9 formed in the cylinder block 2. Consequently, even if the cylinder block 2 is titled to some extent, the port 9 is in no case separated from both ports 11 and 12, whereby pressing force of the cylinder block against the valve plate 4 is kept constant, thus a leakage of hydraulic fluid will not be increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62187063A JPS6432076A (en) | 1987-07-27 | 1987-07-27 | Piston pump or motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62187063A JPS6432076A (en) | 1987-07-27 | 1987-07-27 | Piston pump or motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6432076A true JPS6432076A (en) | 1989-02-02 |
Family
ID=16199502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62187063A Pending JPS6432076A (en) | 1987-07-27 | 1987-07-27 | Piston pump or motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6432076A (en) |
-
1987
- 1987-07-27 JP JP62187063A patent/JPS6432076A/en active Pending
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