JPH0247404U - - Google Patents

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Publication number
JPH0247404U
JPH0247404U JP12681788U JP12681788U JPH0247404U JP H0247404 U JPH0247404 U JP H0247404U JP 12681788 U JP12681788 U JP 12681788U JP 12681788 U JP12681788 U JP 12681788U JP H0247404 U JPH0247404 U JP H0247404U
Authority
JP
Japan
Prior art keywords
land
servo valve
hydraulic servo
spool
sleeve
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
JP12681788U
Other languages
Japanese (ja)
Other versions
JPH0712723Y2 (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 JP1988126817U priority Critical patent/JPH0712723Y2/en
Publication of JPH0247404U publication Critical patent/JPH0247404U/ja
Application granted granted Critical
Publication of JPH0712723Y2 publication Critical patent/JPH0712723Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

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

第１図は、本考案油圧サーボ弁における４ラン
ドスプールの側面図、第２図は、本考案油圧サー
ボ弁の一実施例を示す側断面図、第３図は、本考
案油圧サーボ弁を電気油圧サーボ弁に適用した場
合の実施例を示す側断面図、第４図は、本考案油
圧サーボ弁を空気油圧サーボ弁に適用した場合の
実施例を示す側面図、第５図は、本考案油圧サー
ボ弁の流体固着力軽減効果を示す線図である。 １……両端ランド部、２……圧力ランド部、３
……スリーブ、９０……スプール。 Fig. 1 is a side view of the four land spools in the hydraulic servo valve of the invention, Fig. 2 is a sectional side view showing an embodiment of the hydraulic servo valve of the invention, and Fig. 3 is a side view of the four land spools in the hydraulic servo valve of the invention. FIG. 4 is a side sectional view showing an embodiment in which the hydraulic servo valve of the present invention is applied to an air-hydraulic servo valve, and FIG. FIG. 3 is a diagram showing the effect of reducing fluid sticking force of a hydraulic servo valve. 1...Both end land portion, 2...Pressure land portion, 3
...Sleeve, 90...Spool.

補正 昭６３．１１．２２ 図面の簡単な説明を次のように補正する。 明細書第８頁第７行目及び第８行目の記載を削
除する。Amendment November 22, 1983 The brief description of the drawing is amended as follows. The description on page 8, line 7 and line 8 of the specification is deleted.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 空気圧力または電磁力によつて直接スプールを
作動させる油圧サーボ弁において、複数ランド形
スプールとスリーブとの隙間を両端ランド部にお
けるより圧油ランド部において若干広く構成した
ことを特徴とする油圧サーボ弁。 A hydraulic servo valve that operates a spool directly by air pressure or electromagnetic force, characterized in that the gap between the multi-land spool and the sleeve is slightly wider at the pressure oil land than at the lands at both ends. .
JP1988126817U 1988-09-28 1988-09-28 Hydraulic servo valve Expired - Lifetime JPH0712723Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988126817U JPH0712723Y2 (en) 1988-09-28 1988-09-28 Hydraulic servo valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988126817U JPH0712723Y2 (en) 1988-09-28 1988-09-28 Hydraulic servo valve

Publications (2)

Publication Number Publication Date
JPH0247404U true JPH0247404U (en) 1990-03-30
JPH0712723Y2 JPH0712723Y2 (en) 1995-03-29

Family

ID=31378681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988126817U Expired - Lifetime JPH0712723Y2 (en) 1988-09-28 1988-09-28 Hydraulic servo valve

Country Status (1)

Country Link
JP (1) JPH0712723Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113154086A (en) * 2020-12-30 2021-07-23 中航工业南京伺服控制系统有限公司 Double-system three-section split type slide valve pair and control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645027A (en) * 1979-09-20 1981-04-24 Chiyou Lsi Gijutsu Kenkyu Kumiai Electron beam lithography

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645027A (en) * 1979-09-20 1981-04-24 Chiyou Lsi Gijutsu Kenkyu Kumiai Electron beam lithography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113154086A (en) * 2020-12-30 2021-07-23 中航工业南京伺服控制系统有限公司 Double-system three-section split type slide valve pair and control method
CN113154086B (en) * 2020-12-30 2023-01-17 中航工业南京伺服控制系统有限公司 Double-system three-section split type slide valve pair and control method

Also Published As

Publication number Publication date
JPH0712723Y2 (en) 1995-03-29

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