JPS6345477U - - Google Patents

Info

Publication number
JPS6345477U
JPS6345477U JP1986137949U JP13794986U JPS6345477U JP S6345477 U JPS6345477 U JP S6345477U JP 1986137949 U JP1986137949 U JP 1986137949U JP 13794986 U JP13794986 U JP 13794986U JP S6345477 U JPS6345477 U JP S6345477U
Authority
JP
Japan
Prior art keywords
pilot
passage
flow
valve
communicates
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
JP1986137949U
Other languages
Japanese (ja)
Other versions
JPH0434304Y2 (en
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 filed Critical
Priority to JP13794986U priority Critical patent/JPH0434304Y2/ja
Priority to PCT/JP1987/000662 priority patent/WO1988002071A1/en
Priority to EP19870905792 priority patent/EP0281635B1/en
Priority to US07/221,509 priority patent/US4858649A/en
Priority to KR1019880700512A priority patent/KR950003065B1/en
Priority to DE8787905792T priority patent/DE3768254D1/en
Priority to CN87106224A priority patent/CN1009675B/en
Publication of JPS6345477U publication Critical patent/JPS6345477U/ja
Application granted granted Critical
Publication of JPH0434304Y2 publication Critical patent/JPH0434304Y2/ja
Expired legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の流量制御弁の一実施例を示す
縦断面図、第２図は第１図に示す一実施例が配置
される油圧装置の一例を示す回路図、第３図は従
来の圧力補償付流量制御弁を示す回路図である。 １１，１２……流量制御弁、１３……パイロツ
ト弁、１４……パイロツト式方向切換弁、１７，
１８……管路、２０……リリーフ弁、２１……タ
ンク、２４，３５……ブロツク、２５，３６……
通路、３１……管路、３２，４２……第１の通路
、３３，４３……第２の通路、３４，４４……チ
エツク弁。 Fig. 1 is a longitudinal sectional view showing an embodiment of the flow control valve of the present invention, Fig. 2 is a circuit diagram showing an example of a hydraulic system in which the embodiment shown in Fig. 1 is arranged, and Fig. 3 is a conventional one. FIG. 2 is a circuit diagram showing a flow control valve with pressure compensation. 11, 12...Flow rate control valve, 13...Pilot valve, 14...Pilot type directional control valve, 17,
18... Pipe line, 20... Relief valve, 21... Tank, 24, 35... Block, 25, 36...
Passage, 31... Pipe line, 32, 42... First passage, 33, 43... Second passage, 34, 44... Check valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] パイロツト回路を形成するパイロツト弁と、こ
のパイロツト弁の操作に応じて駆動されるパイロ
ツト式方向切換弁とを連絡するパイロツト管路中
に介設され、本体内に絞りを有し、所定の一方向
の油の流れは自由流とし、該一方向と反対方向の
流れは絞りを介しておこなわれる制御流とする流
量制御弁において、上記本体内に、上記パイロツ
ト回路を流れるパイロツト圧油の圧力を設定する
リリーフ弁とタンクとを連通させる第１の通路を
設けるとともに、この第１の通路と上記パイロツ
ト管路とを連通させる第２の通路を設け、この第
２の通路中に上記パイロツト管路から上記第１の
通路方向への油の流れを阻止するチエツク弁を設
けたことを特徴とする流量制御弁。 It is interposed in a pilot pipe that connects a pilot valve that forms a pilot circuit and a pilot type directional control valve that is driven in response to the operation of the pilot valve. In the flow control valve, the flow of oil is a free flow, and the flow in the opposite direction is a controlled flow through a restriction, the pressure of pilot pressure oil flowing through the pilot circuit is set in the main body. A first passage is provided that communicates the relief valve and the tank, and a second passage is provided that communicates the first passage with the pilot pipe, and a second passage that communicates with the pilot pipe is provided in the second passage. A flow control valve comprising a check valve that prevents oil from flowing in the direction of the first passage.
JP13794986U 1986-09-09 1986-09-10 Expired JPH0434304Y2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP13794986U JPH0434304Y2 (en) 1986-09-10 1986-09-10
PCT/JP1987/000662 WO1988002071A1 (en) 1986-09-09 1987-09-07 Valve device
EP19870905792 EP0281635B1 (en) 1986-09-09 1987-09-07 Valve device
US07/221,509 US4858649A (en) 1986-09-09 1987-09-07 Valve apparatus
KR1019880700512A KR950003065B1 (en) 1986-09-09 1987-09-07 Valve device
DE8787905792T DE3768254D1 (en) 1986-09-09 1987-09-07 VALVE.
CN87106224A CN1009675B (en) 1986-09-09 1987-09-09 Valve device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13794986U JPH0434304Y2 (en) 1986-09-10 1986-09-10

Publications (2)

Publication Number Publication Date
JPS6345477U true JPS6345477U (en) 1988-03-26
JPH0434304Y2 JPH0434304Y2 (en) 1992-08-14

Family

ID=31042479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13794986U Expired JPH0434304Y2 (en) 1986-09-09 1986-09-10

Country Status (1)

Country Link
JP (1) JPH0434304Y2 (en)

Also Published As

Publication number Publication date
JPH0434304Y2 (en) 1992-08-14

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