JPH0369379U - - Google Patents

Info

Publication number
JPH0369379U
JPH0369379U JP1990111563U JP11156390U JPH0369379U JP H0369379 U JPH0369379 U JP H0369379U JP 1990111563 U JP1990111563 U JP 1990111563U JP 11156390 U JP11156390 U JP 11156390U JP H0369379 U JPH0369379 U JP H0369379U
Authority
JP
Japan
Prior art keywords
duct
hydraulic
movable core
chamber
pilot
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
JP1990111563U
Other languages
Japanese (ja)
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
Publication of JPH0369379U publication Critical patent/JPH0369379U/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/028—Electrically controlled valves in hydraulic systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
    • G05D16/2097—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using pistons within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Magnetically Actuated Valves (AREA)
  • Safety Valves (AREA)

Description

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

第１図は本考案の液圧装置の第１実施例の部分
的な断面図、第２図は本考案の液圧装置の第２実
施例の部分的な断面図、第３図は本考案の装置の
一部を形成するパイロツト弁の実際的な実施例の
圧力／電流特性の線図を示す。 １……サーボ弁の体部、２……体部の円筒形ボ
ア、３……パイロツト弁の体部、４……電磁石、
５……巻線、６……管状ボビン、７……アーマチ
ユア、１１……スリーブ、１２……可動コア、１
４……パイロツトチヤンバ、１５……排出孔、１
８……ダクト、１９……主チヤンバ、２０……補
助ダクト、２３……制限オリフイス、２９……ボ
ールシヤツタ、３０……プラグ、３３……補助チ
ヤンバ、３４……軸方向の周辺溝、３５……環状
チヤンバ、３６……ピン、３８……螺旋形ばね、
３９……制限板、４２……小さい断面のオリフイ
ス。 FIG. 1 is a partial sectional view of a first embodiment of the hydraulic device of the present invention, FIG. 2 is a partial sectional view of a second embodiment of the hydraulic device of the present invention, and FIG. 3 is a partial sectional view of a second embodiment of the hydraulic device of the present invention. Figure 3 shows a diagram of the pressure/current characteristics of a practical example of a pilot valve forming part of a device; 1... body of servo valve, 2... cylindrical bore of body, 3... body of pilot valve, 4... electromagnet,
5... Winding wire, 6... Tubular bobbin, 7... Armature, 11... Sleeve, 12... Movable core, 1
4... Pilot chamber, 15... Discharge hole, 1
8... Duct, 19... Main chamber, 20... Auxiliary duct, 23... Limiting orifice, 29... Ball shutter, 30... Plug, 33... Auxiliary chamber, 34... Axial peripheral groove, 35... ... annular chamber, 36 ... pin, 38 ... helical spring,
39...Restriction plate, 42...Orifice with a small cross section.

Claims (1)

【実用新案登録請求の範囲】 (1) 液圧サーボ弁のパイロツトチヤンバの圧力
を調整する如くパイロツトチヤンバ１４と、液圧
パイロツト弁とを有する液圧サーボ弁を具備し、
該パイロツト弁が、該パイロツトチヤンバ１４に
連通し小さい断面のオリフイス２３，４２を介し
加圧流体源に結合されるダクト１８と、排出タン
クに結合される孔１５と、該排出孔１５に該ダク
ト１８を連通させる通路１９，２０とを有する体
部３と、該通路１９，２０に対応して該体部３に
形成される座と協働するシヤツタ２９と、該パイ
ロツト弁体部３に取付けられるアーマチユア７と
、巻線５と、該巻線５に供給される電流の強さに
比例する力で該座に向い該シヤツタ２９をその閉
鎖位置に付勢する可動コア１２とを有する電磁石
４とを備え、電気的な比例制御を行う液圧装置に
おいて、前記シヤツタと協働する前記座が、前記
電磁石４のアーマチユア７内にある前記パイロツ
ト弁体部３の領域に位置し、該シヤツタ２９が、
該電磁石４の前記可動コア１２で直接に操作され
、前記電磁石４の可動コア１２が、前記巻線１５
の管状支持ボビン６に摺動可能に装着され、前記
パイロツト弁体部３が、ほぼ円筒形の要素の形態
であり、該電磁石４の巻線５の支持ボビン６の一
端内に挿入される一端を有し、該弁体部３の該一
端が、該支持ボビン６内の主チヤンバ１９をそれ
に面する前記可動コア１２の端部と共に限定し、
該パイロツト弁体部３に形成される前記ダクト１
８が、該主チヤンバに開口し、該ダクト１８を排
出孔１５に結合する前記通路が、該主チヤンバ１
９と、該主チヤンバ１９を該排出孔１５に結合す
る少くとも１つの補助ダクト２０とで構成され、
前記シヤツタ２９の座が、該主チヤンバ１９に開
口する該ダクト１８の端部で構成されることを特
徴とする、液圧装置。 (2) 前記ダクト１８を加圧流体源に結合する小
さい断面のオリフイス２３が、前記パイロツト弁
の体部３に形成されることを特徴とする実用新案
登録請求の範囲第１項記載の液圧装置。 (3) 前記ダクト１８を加圧流体源に結合する小
さい断面のオリフイス４２が、前記液圧サーボ弁
に形成され、前記パイロツトチヤンバ１４が、該
ダクト１８と、小さい断面の該オリフイス４２と
の間に間挿されることを特徴とする実用新案登録
請求の範囲第１項記載の液圧装置。 (4) 小さい断面のオリフイス２３，４２が、比
較的短い軸方向長さを有することを特徴とする実
用新案登録請求の範囲第１項記載の液圧装置。 (5) 前記パイロツト弁体部３が、強磁性材料で
作られることを特徴とする実用新案登録請求の範
囲第１項記載の液圧装置。 (6) 前記可動コア１２が、スリーブ１１の間挿
により、前記巻線５の支持ボビン６内に摺動可能
に装着されることを特徴とする実用新案登録請求
の範囲第１項記載の液圧装置。 (7) 前記弁が、該弁の体部３に対向して前記ス
リーブ１１の端部を閉じる閉鎖要素３０を有し、
該閉鎖要素３０が、それに面する前記可動コア１
２の端部と共に、該スリーブ１１内に補助チヤン
バ３３を限定し、該可動コア１２が、前記主チヤ
ンバ１９を該補助チヤンバ３３に連通させる一連
の軸方向の周辺溝３４を有することを特徴とする
実用新案登録請求の範囲第６項記載の液圧装置。 (8) 前記可動コア１２が、環状周辺チヤンバ３
５を前記スリーブ１１内に限定する小さい直径の
中間部分を有することを特徴とする実用新案登録
請求の範囲第７項記載の液圧装置。 (9) 弾性装置３８が、前記閉鎖要素３０と、該
要素に面する前記可動コア１２の端部との間に間
挿されることを特徴とする実用新案登録請求の範
囲第７項記載の液圧装置。 (10) 前記閉鎖要素３０の方向で前記可動コア１
２のストロークの限界を限定するストローク制限
装置３６を備え、該可動コア１２と、閉鎖要素３
０との対向する端部が、このストローク限界位置
で相互に離れることを特徴とする実用新案登録請
求の範囲第７項記載の液圧装置。 (11) 前記ストロークの制限装置が、前記可動コ
ア１２内に圧力嵌めされる軸方向ピン３６で構成
されることを特徴とする実用新案登録請求の範囲
第１０項記載の液圧装置。 (12) 前記シヤツタ２９の座が、前記ダクト１８
の前記主チヤンバ１９に開口する端部で前記弁体
部３に装着されるブツシユ２８の内側端縁によつ
て限定されることを特徴とする実用新案登録請求
の範囲第１項記載の液圧装置。 (13) 前記電磁石の外方へ突出する前記弁体部３
の部分が、前記液圧サーボ弁と、パイロツト弁と
の結合を達成する如く該サーボ弁の体部１の座２
に挿入されることを特徴とする実用新案登録請求
の範囲第１項記載の液圧装置。 (14) 前記ダクト１８が、前記体部３を軸方向に
貫通して延びるボアで構成されることを特徴とす
る実用新案登録請求の範囲第１項記載の液圧装置
。 (15) 前記パイロツトチヤンバ１４に連通する前
記ダクト１８の端部が、該ダクトと、パイロツト
チヤンバ１４との間での圧力の揺動の伝達を防止
する如く孔付き制限板３９を備えることを特徴と
する実用新案登録請求の範囲第１項記載の液圧装
置。[Claims for Utility Model Registration] (1) A hydraulic servo valve having a pilot chamber 14 and a hydraulic pilot valve for adjusting the pressure in the pilot chamber of the hydraulic servo valve;
The pilot valve has a duct 18 communicating with the pilot chamber 14 and connected to a source of pressurized fluid through small cross-section orifices 23, 42, a hole 15 connected to a discharge tank, and a hole 15 connected to the discharge hole 15. A body part 3 having passages 19, 20 communicating with the duct 18, a shutter 29 cooperating with a seat formed in the body part 3 corresponding to the passages 19, 20, and a shutter 29 provided in the pilot valve body part 3. an electromagnet having a mounted armature 7, a winding 5 and a movable core 12 which faces the seat and urges the shutter 29 into its closed position with a force proportional to the strength of the current supplied to the winding 5; 4, in which the seat cooperating with the shutter is located in the region of the pilot valve body 3 in the armature 7 of the electromagnet 4, and the shutter 29 is
Directly operated by the movable core 12 of the electromagnet 4, the movable core 12 of the electromagnet 4
The pilot valve body portion 3 is in the form of a generally cylindrical element, one end of which is inserted into one end of the support bobbin 6 of the winding 5 of the electromagnet 4. the one end of the valve body part 3 defines a main chamber 19 in the support bobbin 6 together with the end of the movable core 12 facing thereto;
The duct 1 formed in the pilot valve body portion 3
8 opens into the main chamber and the passage connecting the duct 18 to the discharge hole 15 is connected to the main chamber 1.
9 and at least one auxiliary duct 20 connecting the main chamber 19 to the discharge hole 15,
Hydraulic device, characterized in that the seat of the shutter 29 is constituted by the end of the duct 18 opening into the main chamber 19. (2) The hydraulic system according to claim 1, characterized in that an orifice 23 of small cross section connecting the duct 18 to a source of pressurized fluid is formed in the body 3 of the pilot valve. Device. (3) A small cross-section orifice 42 connecting the duct 18 to a source of pressurized fluid is formed in the hydraulic servo valve, and the pilot chamber 14 connects the duct 18 with the small cross-section orifice 42. The hydraulic device according to claim 1, characterized in that the hydraulic device is inserted in between. (4) The hydraulic device according to claim 1, wherein the orifices 23, 42 having a small cross section have a relatively short axial length. (5) The hydraulic device according to claim 1, wherein the pilot valve body portion 3 is made of a ferromagnetic material. (6) The fluid according to claim 1, wherein the movable core 12 is slidably mounted within the support bobbin 6 of the winding 5 by inserting the sleeve 11. Pressure device. (7) the valve has a closing element 30 closing the end of the sleeve 11 opposite the body 3 of the valve;
The closure element 30 faces the movable core 1
2 defines an auxiliary chamber 33 within said sleeve 11, characterized in that said movable core 12 has a series of axial peripheral grooves 34 which communicate said main chamber 19 with said auxiliary chamber 33. A hydraulic device according to claim 6 of the utility model registration claim. (8) The movable core 12 is connected to the annular peripheral chamber 3.
8. Hydraulic device according to claim 7, characterized in that it has an intermediate portion of small diameter which confines the hydraulic pressure device 5 within the sleeve 11. (9) The fluid according to claim 7, characterized in that an elastic device 38 is interposed between the closure element 30 and the end of the movable core 12 facing it. Pressure device. (10) the movable core 1 in the direction of the closure element 30;
a stroke limiting device 36 for limiting the stroke limit of the movable core 12 and the closing element 3;
8. The hydraulic device according to claim 7, wherein the ends opposite to each other are separated from each other at the stroke limit position. (11) The hydraulic device according to claim 10, wherein the stroke limiting device comprises an axial pin 36 press-fitted into the movable core 12. (12) The seat of the shutter 29 is located in the duct 18.
The hydraulic system according to claim 1, characterized in that it is limited by an inner edge of a bushing (28) which is attached to the valve body (3) at its end opening into the main chamber (19). Device. (13) The valve body portion 3 protruding outward from the electromagnet.
The seat 2 of the body part 1 of the servo valve is configured such that the portion 2 of the hydraulic servo valve achieves a connection between the hydraulic servo valve and the pilot valve.
The hydraulic device according to claim 1, which is inserted into a utility model. (14) The hydraulic device according to claim 1, wherein the duct 18 is constituted by a bore extending axially through the body portion 3. (15) The end of the duct 18 communicating with the pilot chamber 14 is provided with a restricting plate 39 with holes so as to prevent pressure fluctuations from being transmitted between the duct and the pilot chamber 14. A hydraulic device according to claim 1, characterized in that:
JP1990111563U 1981-07-01 1990-10-24 Pending JPH0369379U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67914/81A IT1144260B (en) 1981-07-01 1981-07-01 PROPORTIONAL ELECTRIC PILOT HYDRAULIC SYSTEM

Publications (1)

Publication Number Publication Date
JPH0369379U true JPH0369379U (en) 1991-07-10

Family

ID=11306327

Family Applications (2)

Application Number Title Priority Date Filing Date
JP57113801A Pending JPS5821074A (en) 1981-07-01 1982-06-30 Hydraulic device conducting electrical proportional control
JP1990111563U Pending JPH0369379U (en) 1981-07-01 1990-10-24

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP57113801A Pending JPS5821074A (en) 1981-07-01 1982-06-30 Hydraulic device conducting electrical proportional control

Country Status (5)

Country Link
JP (2) JPS5821074A (en)
DE (1) DE3224189A1 (en)
FR (1) FR2509009B1 (en)
GB (1) GB2103390B (en)
IT (1) IT1144260B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011253A (en) * 2007-07-05 2009-01-22 Tokyo Tobari Kk Get over-preventing fence and return component

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JPS60175884A (en) * 1984-02-07 1985-09-10 シ−ルド・パワ−・コ−ポレ−シヨン Solenoid valve
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DE3427033A1 (en) * 1984-07-21 1986-01-23 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover VALVE DEVICE
JPS6166276U (en) * 1984-10-08 1986-05-07
DE3442750A1 (en) * 1984-11-23 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart SOLENOID VALVE FOR FLUID CONTROL
DE3714337C2 (en) * 1987-04-29 1997-03-20 Rexroth Mannesmann Gmbh Servo valve with piezo control and piezoelectric control motor
JPS6457472U (en) * 1987-10-05 1989-04-10
US5018431A (en) * 1988-12-09 1991-05-28 Quadrastat Corporation Apparatus for positioning a work implement
US5184644A (en) * 1991-05-30 1993-02-09 Coltec Industries Inc. Solenoid operated pressure regulating valve
DE4400115A1 (en) * 1993-01-04 1994-07-07 Aro Corp Feed-through coil for a pneumatic valve
JP2721117B2 (en) * 1993-02-23 1998-03-04 ステリス コーポレイション Lock mechanism, system provided with the lock mechanism, and sterilization system provided with the lock mechanism
US5421545A (en) * 1993-09-03 1995-06-06 Caterpillar Inc. Poppet valve with force feedback control
EP1054152A3 (en) * 1999-05-19 2002-08-14 HydraForce, Inc. Electrically controlled valve having mechanism for controlling a nonlinear force
US6769252B2 (en) 2001-12-10 2004-08-03 Caterpillar Inc Fluid system having variable pressure relief

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JPS5179024A (en) * 1974-12-27 1976-07-09 Rexroth Gmbh G L JISHAKUCHOSETSUSHIKIATSURYOKUBEN
US3983909A (en) * 1973-12-14 1976-10-05 Societe Anonyme D.B.A. Three-way solenoid valve
JPS551005B2 (en) * 1974-03-21 1980-01-11

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US3983909A (en) * 1973-12-14 1976-10-05 Societe Anonyme D.B.A. Three-way solenoid valve
JPS551005B2 (en) * 1974-03-21 1980-01-11
JPS5179024A (en) * 1974-12-27 1976-07-09 Rexroth Gmbh G L JISHAKUCHOSETSUSHIKIATSURYOKUBEN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011253A (en) * 2007-07-05 2009-01-22 Tokyo Tobari Kk Get over-preventing fence and return component

Also Published As

Publication number Publication date
GB2103390B (en) 1984-11-28
JPS5821074A (en) 1983-02-07
GB2103390A (en) 1983-02-16
DE3224189A1 (en) 1983-01-20
FR2509009B1 (en) 1986-08-22
FR2509009A1 (en) 1983-01-07
IT8167914A0 (en) 1981-07-01
IT1144260B (en) 1986-10-29
DE3224189C2 (en) 1988-06-16

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