JPS5572962A - Rotary valve for double-acting hydraulic vibration actuator - Google Patents

Rotary valve for double-acting hydraulic vibration actuator

Info

Publication number
JPS5572962A
JPS5572962A JP14439678A JP14439678A JPS5572962A JP S5572962 A JPS5572962 A JP S5572962A JP 14439678 A JP14439678 A JP 14439678A JP 14439678 A JP14439678 A JP 14439678A JP S5572962 A JPS5572962 A JP S5572962A
Authority
JP
Japan
Prior art keywords
port
oil passage
disconnecting
valve
hydraulic vibration
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.)
Granted
Application number
JP14439678A
Other languages
Japanese (ja)
Other versions
JPS6238583B2 (en
Inventor
Norio Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tadano Ltd
Original Assignee
Tadano Iron Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tadano Iron Works Co Ltd filed Critical Tadano Iron Works Co Ltd
Priority to JP14439678A priority Critical patent/JPS5572962A/en
Publication of JPS5572962A publication Critical patent/JPS5572962A/en
Publication of JPS6238583B2 publication Critical patent/JPS6238583B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Multiple-Way Valves (AREA)

Abstract

PURPOSE: To prevent cavitation from ocurring at the end of the stroke of a double- acting hydraulic vibration actuator by delaying the angular rotary position of a valve rotor for disconnecting one oil chamber from a high pressure oil passage with respect to the angular rotary position of another valve rotor for disconnecting the other oil chamber of an actuator from a tank oil passage.
CONSTITUTION: A rotary valve for a hydraulic vibration actuator has a valve rotor 23 including two lands 24, 25 rotatably engaged within a valve sleeve 22 and three chambers 26W28 partitioned therein. The chambers 26, 27 are tank chambers which are connected through ports 29, 30, respectively formed at a valve body 21 to a tank oil passage 8, and the chamber 28 is a high pressure chamber which is connected through a port 31, an annular slot 32 and a port 33 to a high pressure oil passage 9. In this case, the position for supplying and connecting the port 35 to the position for exhausting and connecting the port 34 and the position for supplying and disconnecting the port 34 to the position for exhausting and disconnecting the port 35 are delayed at their angles with respect to the position for rotating the rotor to disconnect one oil chamber of the actuator from the oil passage 8.
COPYRIGHT: (C)1980,JPO&Japio
JP14439678A 1978-11-22 1978-11-22 Rotary valve for double-acting hydraulic vibration actuator Granted JPS5572962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14439678A JPS5572962A (en) 1978-11-22 1978-11-22 Rotary valve for double-acting hydraulic vibration actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14439678A JPS5572962A (en) 1978-11-22 1978-11-22 Rotary valve for double-acting hydraulic vibration actuator

Publications (2)

Publication Number Publication Date
JPS5572962A true JPS5572962A (en) 1980-06-02
JPS6238583B2 JPS6238583B2 (en) 1987-08-18

Family

ID=15361174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14439678A Granted JPS5572962A (en) 1978-11-22 1978-11-22 Rotary valve for double-acting hydraulic vibration actuator

Country Status (1)

Country Link
JP (1) JPS5572962A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04203681A (en) * 1990-11-30 1992-07-24 Keiko Kawakami Selector valve system for filter
JPH06285793A (en) * 1993-04-05 1994-10-11 Mino Houzai Kk Method of removing pull-out member for buffer and device therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04203681A (en) * 1990-11-30 1992-07-24 Keiko Kawakami Selector valve system for filter
JPH06285793A (en) * 1993-04-05 1994-10-11 Mino Houzai Kk Method of removing pull-out member for buffer and device therefor

Also Published As

Publication number Publication date
JPS6238583B2 (en) 1987-08-18

Similar Documents

Publication Publication Date Title
JPS57154503A (en) Pressurized fluid feeder
JPS5572962A (en) Rotary valve for double-acting hydraulic vibration actuator
JPS5786588A (en) Enclosed type scroll compressor
JPS5543220A (en) Terminal structure of seal to demarcate gear pump or high pressure area and low pressure area in motor
JPS5647694A (en) Pump device
JPS56156489A (en) Oil pump
JPS5586905A (en) Directional control valve with pressure compensation
JPS51123906A (en) Fluid pressure machine
JPS57107405A (en) Hydraulic operating device
JPS56141406A (en) Compact cylinder
JPS55166507A (en) Circuit for hydraulically movable device
JPS5582865A (en) Change over valve
JPS5597506A (en) Fluid pressure cylinder for generating vibration
JPS5517753A (en) Rotary system direction changing-over valve
JPS5620803A (en) Hydraulic circuit
JPS5634984A (en) Fluid pressure rotary machine
JPS5770797A (en) Rotary valve
JPS5732092A (en) Radial pump
JPS5514935A (en) Rotary compressor
JPS5652574A (en) Multistage hydraulic machine
JPS5754704A (en) Hydraulic circuit
JPS56163971A (en) Valve mechanism of full hydraulic type power steering gear
JPS5586969A (en) Rotary valve
JPS556008A (en) Mechanism for limiting travel of hydraulic cylinder
GB2006342A (en) Rotary Compressor