JPS5618104A - Compound valve - Google Patents

Compound valve

Info

Publication number
JPS5618104A
JPS5618104A JP9307379A JP9307379A JPS5618104A JP S5618104 A JPS5618104 A JP S5618104A JP 9307379 A JP9307379 A JP 9307379A JP 9307379 A JP9307379 A JP 9307379A JP S5618104 A JPS5618104 A JP S5618104A
Authority
JP
Japan
Prior art keywords
valves
pilot
pressure
plunger
direction switching
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
Application number
JP9307379A
Other languages
Japanese (ja)
Inventor
Megumi Miyake
Kenichi Kiriura
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.)
Nabco Ltd
Original Assignee
Nabco 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 Nabco Ltd filed Critical Nabco Ltd
Priority to JP9307379A priority Critical patent/JPS5618104A/en
Publication of JPS5618104A publication Critical patent/JPS5618104A/en
Pending legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To enable to control operations of actuators at a constant speed by direction switching valves compensated in pressures thereof regardless of a load condition by a method wherein the direction switching valves having pilot type sequence valves are combined with bleed-off type pressure compensating valves.
CONSTITUTION: Direction switching valves 1a, 1b equipped with pilot type sequence valves 32a, 32b respectively, a selecting device 8 connected with pilot passageways 30a, 30b at an input side while pilot chambers 37a, 37b of the respective sequence valves are connected at an outlet side thereof, and a pressure compensating valve 2 controlling hydraulic pressure in first supply passageways 28a, 28b are equipped. The pressure compensating valve 2 is equipped with an internal bore 41 in which a plunger 42 is fitted, a spring chamber 44 accommodating a spring 43 pushing the plunger 42 therewithin and connected with second supply passageways 26a, 26b, a pressure chamber 46 opposing to the spring chamber 44 through the plunger 42 and connected with the first supply passageways 28a, 28b, and annular grooves 47, 48 connected with a pressure source 3 and a tank 10, to constitute it.
COPYRIGHT: (C)1981,JPO&Japio
JP9307379A 1979-07-20 1979-07-20 Compound valve Pending JPS5618104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9307379A JPS5618104A (en) 1979-07-20 1979-07-20 Compound valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9307379A JPS5618104A (en) 1979-07-20 1979-07-20 Compound valve

Publications (1)

Publication Number Publication Date
JPS5618104A true JPS5618104A (en) 1981-02-20

Family

ID=14072329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9307379A Pending JPS5618104A (en) 1979-07-20 1979-07-20 Compound valve

Country Status (1)

Country Link
JP (1) JPS5618104A (en)

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