JPS5770797A - Rotary valve - Google Patents
Rotary valveInfo
- Publication number
- JPS5770797A JPS5770797A JP14698180A JP14698180A JPS5770797A JP S5770797 A JPS5770797 A JP S5770797A JP 14698180 A JP14698180 A JP 14698180A JP 14698180 A JP14698180 A JP 14698180A JP S5770797 A JPS5770797 A JP S5770797A
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- valve member
- fluid
- control
- throttling
- 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
- Power Steering Mechanism (AREA)
- Multiple-Way Valves (AREA)
Abstract
PURPOSE: To reduce throttling sound by allowing the back pressure of a pressure fluid to act by providing three control orifices between respective land parts formed at the inner and outer circumferential surfaces of a spool valve member and a sleeve valve member.
CONSTITUTION: With a steering wheel rotated, a spool valve member 22 rotates in relation to a sleeve valve member 21 by a torsion bar 25 twisted thereby. Thus, the first control orifince 37a and the 2nd control orifice 38a are throttled, and consequently the throttling resistance increases. As a result, the fluid pressure in U-groove 30 leading to a supply port 31 rises. The pressurize fluid is introduced into the right chamber of a power cylinder 16 through a distribution port 34, pushing a piston 17 leftward. On the other hand, fluid in the left chamber is discharged to a discharge port 44 through the distribution port 34, the orifice 38a and the 3rd control orifice 39a communicating with an orifice 38b. In this case, also the 3rd control orifice 39a for generating a back pressure performs a throttling action. Accordingly, it is possible to suppress generation of cavitation and prevent generation of throttling sound.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14698180A JPS5770797A (en) | 1980-10-22 | 1980-10-22 | Rotary valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14698180A JPS5770797A (en) | 1980-10-22 | 1980-10-22 | Rotary valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5770797A true JPS5770797A (en) | 1982-05-01 |
Family
ID=15419923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14698180A Pending JPS5770797A (en) | 1980-10-22 | 1980-10-22 | Rotary valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5770797A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118564A (en) * | 1984-07-04 | 1986-01-27 | Atsugi Motor Parts Co Ltd | Power steering unit |
JPS63301179A (en) * | 1987-05-29 | 1988-12-08 | ベンディクス・エスパ−ナ・ソシエダド・アノニ−マ | Fluid distributor for power steering gear for car |
CN104290898A (en) * | 2013-09-11 | 2015-01-21 | 昆山新金福精密电子有限公司 | Coaxial flow amplifier |
-
1980
- 1980-10-22 JP JP14698180A patent/JPS5770797A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118564A (en) * | 1984-07-04 | 1986-01-27 | Atsugi Motor Parts Co Ltd | Power steering unit |
JPS63301179A (en) * | 1987-05-29 | 1988-12-08 | ベンディクス・エスパ−ナ・ソシエダド・アノニ−マ | Fluid distributor for power steering gear for car |
CN104290898A (en) * | 2013-09-11 | 2015-01-21 | 昆山新金福精密电子有限公司 | Coaxial flow amplifier |
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