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JPS58102804U - speed increasing valve - Google Patents

speed increasing valve

Info

Publication number
JPS58102804U
JPS58102804U JP19711781U JP19711781U JPS58102804U JP S58102804 U JPS58102804 U JP S58102804U JP 19711781 U JP19711781 U JP 19711781U JP 19711781 U JP19711781 U JP 19711781U JP S58102804 U JPS58102804 U JP S58102804U
Authority
JP
Japan
Prior art keywords
oil
hydraulic cylinder
land portion
oil chamber
speed increasing
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
JP19711781U
Other languages
Japanese (ja)
Other versions
JPH0245521Y2 (en
Inventor
亘 久保本
Original Assignee
油谷重工株式会社
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 油谷重工株式会社 filed Critical 油谷重工株式会社
Priority to JP19711781U priority Critical patent/JPS58102804U/en
Publication of JPS58102804U publication Critical patent/JPS58102804U/en
Application granted granted Critical
Publication of JPH0245521Y2 publication Critical patent/JPH0245521Y2/ja
Granted legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案の縦断面図、第２図、第３図、第４図、
第５図は本考案の作動状況を示す部分縦断面図である。 １・・・本体、２・・・シリンダ、５・・・油口、７・
・・油圧シリンダ、８・・・ロッド側油室、９・・・油
口、１１・・・ヘッド側油室、１６・・・油口、１８・
・・スプール、２１・・・ランド部、２３・・・油路、
２４・・・絞り、２７・・・油路、２８・・・ポペット
、３１・・・バネ、３２・・・バネ、３４・・・油圧ポ
ンプ。Fig. 1 is a longitudinal sectional view of the present invention, Fig. 2, Fig. 3, Fig. 4,
FIG. 5 is a partial vertical sectional view showing the operating condition of the present invention. 1...Body, 2...Cylinder, 5...Oil port, 7...
...Hydraulic cylinder, 8...Rod side oil chamber, 9...Oil port, 11...Head side oil chamber, 16...Oil port, 18.
... Spool, 21... Land part, 23... Oil path,
24... Throttle, 27... Oil path, 28... Poppet, 31... Spring, 32... Spring, 34... Hydraulic pump.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧シリンダ、および、油圧ポンプに通ずる油口を形成
した本体と、該本体内部に摺動嵌挿し、前記油圧シリン
ダに通ずる両方の油日をバイパスせしめ、一方向にのみ
油を流すべくポペットを内蔵した油路を有し、油圧シリ
ンダのロッド側油室に通ずる油日と切換弁に通ずる油口
の間を絞るためのランド部、および、該ランド部により
絞られたときこれをバイパスするために絞りを内蔵した
油路を有するスプールと、油圧シリンダのヘッド側油室
の油圧に対抗すべくスプールに装着した大小２種のバネ
とよりなり、油圧シリンダの負荷の状況により該油圧シ
リンダ伸長時に、ロッド側油室からの戻り油をヘッド側
油室に合流せしめ、油圧シリンダの作動速度を増加せし
むる如くした増速バルブ。A main body is formed with an oil port leading to a hydraulic cylinder and a hydraulic pump, and a built-in poppet is slidably inserted into the main body to bypass both oil ports leading to the hydraulic cylinder and allow oil to flow in only one direction. A land portion for narrowing the gap between the oil port leading to the rod-side oil chamber of the hydraulic cylinder and the oil port leading to the switching valve, and a land portion for bypassing the oil passage when the land portion is narrowed. It consists of a spool with an oil passage with a built-in throttle and two types of springs, large and small, attached to the spool to counteract the oil pressure in the oil chamber on the head side of the hydraulic cylinder. A speed increasing valve that allows return oil from a rod side oil chamber to flow into a head side oil chamber to increase the operating speed of a hydraulic cylinder.
JP19711781U 1981-12-29 1981-12-29 speed increasing valve Granted JPS58102804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19711781U JPS58102804U (en) 1981-12-29 1981-12-29 speed increasing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19711781U JPS58102804U (en) 1981-12-29 1981-12-29 speed increasing valve

Publications (2)

Publication Number Publication Date
JPS58102804U true JPS58102804U (en) 1983-07-13
JPH0245521Y2 JPH0245521Y2 (en) 1990-12-03

Family

ID=30110333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19711781U Granted JPS58102804U (en) 1981-12-29 1981-12-29 speed increasing valve

Country Status (1)

Country Link
JP (1) JPS58102804U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010203500A (en) * 2009-03-02 2010-09-16 Ckd Corp Air cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012024207A1 (en) * 2012-12-05 2014-06-05 Hydac Fluidtechnik Gmbh Device for controlling the operation of a fan of a cooling device which can be driven by means of a hydraulic motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893876A (en) * 1972-03-22 1973-12-04
JPS53107568A (en) * 1977-03-02 1978-09-19 Sumitomo Heavy Ind Ltd Driving circuit for oil pressure cylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893876A (en) * 1972-03-22 1973-12-04
JPS53107568A (en) * 1977-03-02 1978-09-19 Sumitomo Heavy Ind Ltd Driving circuit for oil pressure cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010203500A (en) * 2009-03-02 2010-09-16 Ckd Corp Air cylinder

Also Published As

Publication number Publication date
JPH0245521Y2 (en) 1990-12-03

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