JPS56153177A - Hydraulic pressure control valve - Google Patents
Hydraulic pressure control valveInfo
- Publication number
- JPS56153177A JPS56153177A JP5753980A JP5753980A JPS56153177A JP S56153177 A JPS56153177 A JP S56153177A JP 5753980 A JP5753980 A JP 5753980A JP 5753980 A JP5753980 A JP 5753980A JP S56153177 A JPS56153177 A JP S56153177A
- Authority
- JP
- Japan
- Prior art keywords
- spool
- operating fluid
- hydraulic pressure
- valve
- control valve
- 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
- Fluid-Driven Valves (AREA)
Abstract
PURPOSE: To miniaturize the control valve by sliding a spool provided with variable orifice by a pilot hydraulic pressure in the direction which is perpendicular to the direction of the hydraulic operating fluid for said valve of hydraulic pressure elevator and the like, and controlling the amount of the hydraulic operating fluid.
CONSTITUTION: The hydraulic operating fluid which is applied on the upper surface of a valve case 41 flows to the lower surface side of the valve case 41 via an inlet port 44, a valve chamber 42, outlet ports 45a and 45b, and a through hole 51. At this time the amount of hydraulic operating fluid flowing in the valve chamber 42 is controlled by sliding the spool 43 by the pilot hydraulic pressure which is applied from an oil introducing port 50, and by varying the opening area of a variable orifice 47 provided in said spool 43. Since the spool 43 is slidden in the direction which is perpendicular to the hydraulic operating fluid flowing direction and the opening area of the variable orifice 47 is varied, the spool 43 can be made compact, and its diameter also can be made short. Therefore, the control valve also can be made compact.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5753980A JPS56153177A (en) | 1980-04-30 | 1980-04-30 | Hydraulic pressure control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5753980A JPS56153177A (en) | 1980-04-30 | 1980-04-30 | Hydraulic pressure control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56153177A true JPS56153177A (en) | 1981-11-27 |
Family
ID=13058557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5753980A Pending JPS56153177A (en) | 1980-04-30 | 1980-04-30 | Hydraulic pressure control valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56153177A (en) |
-
1980
- 1980-04-30 JP JP5753980A patent/JPS56153177A/en active Pending
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