DE831787C - Shut-off or control valve - Google Patents
Shut-off or control valveInfo
- Publication number
- DE831787C DE831787C DEC868A DEC0000868A DE831787C DE 831787 C DE831787 C DE 831787C DE C868 A DEC868 A DE C868A DE C0000868 A DEC0000868 A DE C0000868A DE 831787 C DE831787 C DE 831787C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- valve
- piston
- space
- shut
- 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.)
- Expired
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Description
Es sind Ventile bekannt, bei welchen zur öffnung der Ventilkegel ein Servokolben verwendet wird unter Ausnutzung des Druckes des Durchströmmittels. Dabei wird die Fläche des Servokolbens so groß gehalten, daß mit Sicherheit der Ventilkegel, welcher in seiner Fläche kleiner als der Servokolben ist, gegen den Betriebsdruck geöffnet werden kann. Voraussetzung bei der Anwendung von Servokolben ist das Vorhandensein einerDruckdifferenz zwischen Zu- undAhleitung es Durchflußmittels.Wird diese Differenz zu gering, so gerät das Ventil in einen labilen Zustand. Um dieser Schwierigkeit abzuhelfen, werden Servokolben zusätzlich als Differentialkolben ausgebildet, so daß die der A bflußseite zugewandte Fläche des Kolbens kleiner ist als die von der Zuflußseite her beeinflußte. Diese Ventile funktionieren dann einwandfrei, wenn die Betätigungsvorgänge sich nicht über längere Zeiträume erstrecken, d. h. .ich in dem Raum hinter dein mit dein Druck der Zuflußseite beaufschlagten Kolben, also in dem Raum über der Differenzfläche, kein Druck aufbauen kann, welcher dem Betätigungsdruck des Servokolbens entspricht oder beinahe gleichkommt. `Fenn die Vorgänge so langsam vor sich gehen,daß ein solcher Druckaufbau möglich ist, gerät das Ventil trotz seines Differentialkolbens in einen labilen Zustand.Valves are known in which a valve cone is used to open the valve cone Servo piston is used taking advantage of the pressure of the throughflow medium. Included the area of the servo piston is kept so large that the valve cone, which is smaller in its area than the servo piston, against the operating pressure can be opened. The prerequisite for the use of servo pistons is their presence a pressure difference between the inlet and outlet of the flow medium. This difference too low, the valve becomes unstable. To this difficulty To remedy this, servo pistons are also designed as differential pistons, see above that the A bflussseite facing surface of the piston is smaller than that of the Affected inflow side. These valves work properly when the actuation processes do not extend over long periods of time, d. H. .I in the space behind your piston pressurized with your pressure from the inflow side, so in the space above the differential area, no pressure can build up, which corresponds to the actuation pressure of the servo piston corresponds or almost equals. `Fenn things so slowly go ahead that such a pressure build-up is possible, the valve gets in spite of it Differential piston in an unstable state.
Es ist nun bekannt, den Differentialkolben zum Gehäuse hin mit einem elastischen Wellrohr vollständig abzudichten. Diese Konstrjiktion ist aber unvorteilhaft, da die Wellrohre keiner stärkeren Beanspruchung standhalten und schnell altern.It is now known, the differential piston to the housing with a to seal the elastic corrugated pipe completely. However, this construction is disadvantageous, as the corrugated pipes do not withstand heavy loads and age quickly.
Die diesem Patent zugrunde liegende Erfindung verhindert .diese Schwierigkeiten dadurch, daß der Raum über der Differenzfläche zwischen den beiden vom Druck auf der Zuflußseite und Abflußseite beaufschlagten Stirnflächen des Differentialkolbens mit dem Freien oder einem nicht unter Druck stehenden Behälter verbunden ist.The invention on which this patent is based prevents these difficulties in that the space above the differential area between the two from the pressure on the inlet side and the outlet side acted upon end faces of the differential piston connected to the outdoors or a non-pressurized container.
Die Zeichnung erläutert diesen Vorgang an einem elektrisch betätigten Wechselventil mit Differentialkolben. Das Ventilgehäuse i steht durch . AnSSChluß 2 mit dem Druckerzeuger in Verbindung. Anschluß 2 führt einerseits in die Druckkammer 3 des Ventils und anderseits durch die Leitung 4 in die Druckkammer 5 des Hilfsventils 12. Das zu steuernde Aggregat (nicht gezeichnet) ist durch Leitung6 mit der Ventilkammer? verbunden, die einerseits durch die öffnung 23 mit der Druckkammer 3, anderseits durch die Ventilöffnung 9 über die Ventilkammer io mit dein Auslaß i 1 verbunden werden kann. Druckkammer 5 ist über die Ventilbohrung 22, die durch Hilfsventil 12 abge sperrt wird,- mit dem Raum 13 über dem Differentialkolben 14 verbunden. Vom Raum 13 geht eine Leitung 15 über die durch einen verstellbaren Kegel 16 einstellbare Beipaßöffnung 17 in die Leitung 18, die außerdem eine Verbindung mit dem Raum rg hat und die ins Freie oder in einen nicht unter Druck stehenden Behälter mündet. Das gezeichnete Ventil, welches als "'#,nweiidungsbeispiel der Erfindung anzusehen ist, funktioniert wie folgt: Bekommt die @lagtletslrule 21 Magnetstrom, so öffnet sie das Hilfsventil 12, und der Raum 13 über dein Kolben 14 erhält über Leitung 4 Druck, und der Kolben 14 ist bestrebt, nach unten zu gehen. Das durch den Beipaß 17 entweichende Durchflußmittel ist mengenmäßig geringer als das durch das Hilfsventil zufließende. Besteht in dem zu betätigenden Aggregat ein Druck, der dem des Durchflußmittels beinahe gleich ist, so würde bei einem einfachen Kolben der Gegendruck iin Raum to so groß sein, daß der Kolben über Stoßstange 24 das Hauptventil 8 nicht öffnen könnte. Dasselbe ist zusätzlich mit der Schließfeder 20 belastet. Dadurch, daß der Koll;en 14 als Differentialkolben ausgebildet ist, muß der in Kammer to auf der kleineren Seite des Diffe-reiltialkoll>ens ausgeübte Druck immer bedeutend geringer sein als die mit dem Öldruck beaufschlagte größere Seite. Bei einem sehr langsam vor sich gehenden Steuerungsvorgang in dem zu steuernden Aggregat ist genügend Zeit vorhanden, daß sich durch das Kolbenspiel des Differentialkolbens in dem Raum i9 ein ebenso großer Druck ausbilden könnte wie in dem Raum to bzw. 7, wenn der Raum i9 nicht entlastet wäre. Es wäre damit die Wirkung des Differentialkolbens aufgehoben. Durch die Anwendung der Erfindung, gemäß der der Raum i9 durch die Leitung 18 entlastet ist, ist der Aufbau eines solchen störenden Druckes nicht möglich, und das Ventil kann auch bei ungünstigen Druckverhältnissen einwandfrei arbeiteil.The drawing explains this process on an electrically operated Shuttle valve with differential piston. The valve housing i stands out. Connection 2 in connection with the pressure generator. Port 2 leads into the pressure chamber on the one hand 3 of the valve and on the other hand through the line 4 into the pressure chamber 5 of the auxiliary valve 12. The unit to be controlled (not shown) is connected to the valve chamber through line 6? connected, on the one hand through the opening 23 with the pressure chamber 3, on the other hand connected through the valve opening 9 via the valve chamber io to the outlet i 1 can be. Pressure chamber 5 is via the valve bore 22, which is through the auxiliary valve 12 is blocked, - connected to the space 13 above the differential piston 14. A line 15 goes from the space 13 via the adjustable cone 16 Bypass opening 17 in the line 18, which also connects to the room rg and which discharges into the open air or into a non-pressurized container. The drawn valve, which is to be regarded as an example of the invention works as follows: If the @lagtletslrule 21 receives magnetic current, it opens they the auxiliary valve 12, and the space 13 over your piston 14 receives via line 4 pressure, and the piston 14 tries to go down. That through the bypass 17 escaping flow medium is less in quantity than that through the auxiliary valve inflowing. Is there a pressure in the unit to be operated that is the same as that of the flow medium is almost the same, with a simple piston the counterpressure would be in space to be so large that the piston via the push rod 24 does not open the main valve 8 could. The same is additionally loaded with the closing spring 20. Because the Coll; en 14 is designed as a differential piston, the must in chamber to on the The pressure exerted on the smaller side of the differential collision is always significantly less than the larger side to which the oil pressure is applied. With one very slowly There is enough time ahead of the control process in the unit to be controlled present that through the piston play of the differential piston in the space i9 a pressure that is just as great as in the space to or 7, if the space i9 would not be exonerated. This would cancel the effect of the differential piston. By applying the invention, according to which the space i9 is relieved by the line 18 is, the build-up of such a disruptive pressure is not possible, and the valve can work perfectly even under unfavorable pressure conditions.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC868A DE831787C (en) | 1950-04-28 | 1950-04-28 | Shut-off or control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC868A DE831787C (en) | 1950-04-28 | 1950-04-28 | Shut-off or control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE831787C true DE831787C (en) | 1952-02-18 |
Family
ID=7012434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC868A Expired DE831787C (en) | 1950-04-28 | 1950-04-28 | Shut-off or control valve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE831787C (en) |
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1016086B (en) * | 1953-05-21 | 1957-09-19 | Cosby Donald Philipps Smallpei | Pneumatic shut-off device |
DE1016523B (en) * | 1951-12-07 | 1957-09-26 | Electraulic Presses Ltd | Bypass valve |
DE1024767B (en) * | 1956-02-10 | 1958-02-20 | Forkardt Paul Kg | Electromagnetically controlled four-way valve |
DE1026627B (en) * | 1955-02-18 | 1958-03-20 | Borsig Ag | Device for speed regulation with the help of a servomotor piston |
DE1057843B (en) * | 1955-03-18 | 1959-05-21 | Ross Operating Valve Co | Control slide or valve with an electromagnetic locking device |
DE1063433B (en) * | 1957-07-13 | 1959-08-13 | Spuhr & Co Appbau M | Safety device, especially for steam power plants |
DE1063865B (en) * | 1956-02-16 | 1959-08-20 | Gen Motors Corp | Control device for a hydraulic system with a pump and a memory connected to it |
DE1073819B (en) * | 1960-01-21 | Zimmermann S. Jansen Gesellschaft mit beschränkter Haftung, Dürcn (RhId.) | Control device for double-acting pressure medium motors, in particular for driving shut-off valves or the like | |
DE1089231B (en) * | 1958-12-15 | 1960-09-15 | Concordia Maschinen Und Elek Z | Automatic, quickly switching control valve |
US2956728A (en) * | 1955-09-28 | 1960-10-18 | Skinner Chuck Company | Relief and drain valve for compressors |
DE1094065B (en) * | 1958-01-30 | 1960-12-01 | Hardy Geb Maschf Ag | Shut-off or control device for gaseous and liquid pressure media |
DE1096139B (en) * | 1958-09-25 | 1960-12-29 | Rotax Ltd | Shut-off and control valve |
DE1098309B (en) * | 1958-10-10 | 1961-01-26 | Weserhuette Ag Eisenwerk | Control spool |
DE1103098B (en) * | 1959-09-25 | 1961-03-23 | Ludwig Rexroth | Multipurpose control valve |
DE1115041B (en) * | 1959-04-22 | 1961-10-12 | Walter Hartung Dipl Ing | Fluid valve controlled by pressure medium for automatic flow limitation devices |
DE1118553B (en) * | 1957-08-09 | 1961-11-30 | Erich Herion | Shut-off or control valve for changing flow directions |
DE1119071B (en) * | 1953-09-21 | 1961-12-07 | Ex Cell O Corp | Control for pressure medium |
DE1119622B (en) * | 1956-01-18 | 1961-12-14 | Jean Louis Gratzmuller | Hydraulic system for driving devices operated by fluid pressure, e.g. Liquid motors |
DE1119615B (en) * | 1959-09-17 | 1961-12-14 | Landmaschb Iarotes Banneria Ve | Control valve for a double-acting, one-sided loaded hydraulic motor |
DE1121424B (en) * | 1956-09-17 | 1962-01-04 | Ilse Geffcken Geb Tochtermann | Pneumatic drive for a valve or the like. |
DE1124775B (en) * | 1957-08-19 | 1962-03-01 | Automotive Prod Co Ltd | Control spool |
US3026906A (en) * | 1961-07-18 | 1962-03-27 | Chatleff Controls Inc | Diverting valve with seats of different sizes |
DE1145449B (en) * | 1957-04-30 | 1963-03-14 | Chatleff Controls Inc | Control valve arrangement for a pressure medium with an inlet and two consumer connections |
DE1152020B (en) * | 1960-05-03 | 1963-07-25 | Klein Schanzlin & Becker Ag | Free-wheel check valve for centrifugal pumps with controlled secondary outlet for a control cylinder |
DE1173750B (en) * | 1959-12-03 | 1964-07-09 | Francis J Holland | Control valve for supplying an output pressure proportional to an input force |
DE1192005B (en) * | 1959-02-05 | 1965-04-29 | Spuhr & Co M | Pressure controlled changeover valve |
DE1192471B (en) * | 1956-10-12 | 1965-05-06 | Moog Servocontrols Inc | Electro-hydraulic servo valve |
DE1195123B (en) * | 1961-02-02 | 1965-06-16 | Shafer Valve Co | Automatic valve with pressure medium drive |
DE1205784B (en) * | 1959-09-25 | 1965-11-25 | Grinnell Corp | Reversible auxiliary valve |
DE1209386B (en) * | 1960-11-15 | 1966-01-20 | Asea Ab | Pressure fluid operated valve |
DE1225497B (en) * | 1954-01-15 | 1966-09-22 | Jean Louis Gratzmuller | Hydraulic remote control rods, especially for actuating electrical locking switches |
DE2850590A1 (en) * | 1977-11-29 | 1979-05-31 | Gewerk Eisenhuette Westfalia | ELECTROMAGNETIC VALVE, IN PARTICULAR FOR USE IN HYDRAULIC CONTROLS IN MINING UNDERGROUND WORKS |
DE3226696A1 (en) * | 1981-07-17 | 1983-02-03 | Fiat Auto S.p.A., 10100 Turin | FLOW RATE VALVE FOR HYDRAULIC CIRCUIT |
US4535966A (en) * | 1981-09-26 | 1985-08-20 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Throttle valve |
DE3710351A1 (en) * | 1987-03-28 | 1988-10-13 | Wabco Westinghouse Steuerung | VALVE DEVICE |
-
1950
- 1950-04-28 DE DEC868A patent/DE831787C/en not_active Expired
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073819B (en) * | 1960-01-21 | Zimmermann S. Jansen Gesellschaft mit beschränkter Haftung, Dürcn (RhId.) | Control device for double-acting pressure medium motors, in particular for driving shut-off valves or the like | |
DE1016523B (en) * | 1951-12-07 | 1957-09-26 | Electraulic Presses Ltd | Bypass valve |
DE1016086B (en) * | 1953-05-21 | 1957-09-19 | Cosby Donald Philipps Smallpei | Pneumatic shut-off device |
DE1119071B (en) * | 1953-09-21 | 1961-12-07 | Ex Cell O Corp | Control for pressure medium |
DE1225497B (en) * | 1954-01-15 | 1966-09-22 | Jean Louis Gratzmuller | Hydraulic remote control rods, especially for actuating electrical locking switches |
DE1026627B (en) * | 1955-02-18 | 1958-03-20 | Borsig Ag | Device for speed regulation with the help of a servomotor piston |
DE1057843B (en) * | 1955-03-18 | 1959-05-21 | Ross Operating Valve Co | Control slide or valve with an electromagnetic locking device |
US2956728A (en) * | 1955-09-28 | 1960-10-18 | Skinner Chuck Company | Relief and drain valve for compressors |
DE1119622B (en) * | 1956-01-18 | 1961-12-14 | Jean Louis Gratzmuller | Hydraulic system for driving devices operated by fluid pressure, e.g. Liquid motors |
DE1024767B (en) * | 1956-02-10 | 1958-02-20 | Forkardt Paul Kg | Electromagnetically controlled four-way valve |
DE1063865B (en) * | 1956-02-16 | 1959-08-20 | Gen Motors Corp | Control device for a hydraulic system with a pump and a memory connected to it |
DE1121424B (en) * | 1956-09-17 | 1962-01-04 | Ilse Geffcken Geb Tochtermann | Pneumatic drive for a valve or the like. |
DE1192471B (en) * | 1956-10-12 | 1965-05-06 | Moog Servocontrols Inc | Electro-hydraulic servo valve |
DE1145449B (en) * | 1957-04-30 | 1963-03-14 | Chatleff Controls Inc | Control valve arrangement for a pressure medium with an inlet and two consumer connections |
DE1063433B (en) * | 1957-07-13 | 1959-08-13 | Spuhr & Co Appbau M | Safety device, especially for steam power plants |
DE1118553B (en) * | 1957-08-09 | 1961-11-30 | Erich Herion | Shut-off or control valve for changing flow directions |
DE1124775B (en) * | 1957-08-19 | 1962-03-01 | Automotive Prod Co Ltd | Control spool |
DE1094065B (en) * | 1958-01-30 | 1960-12-01 | Hardy Geb Maschf Ag | Shut-off or control device for gaseous and liquid pressure media |
DE1096139B (en) * | 1958-09-25 | 1960-12-29 | Rotax Ltd | Shut-off and control valve |
DE1098309B (en) * | 1958-10-10 | 1961-01-26 | Weserhuette Ag Eisenwerk | Control spool |
DE1089231B (en) * | 1958-12-15 | 1960-09-15 | Concordia Maschinen Und Elek Z | Automatic, quickly switching control valve |
DE1192005B (en) * | 1959-02-05 | 1965-04-29 | Spuhr & Co M | Pressure controlled changeover valve |
DE1115041B (en) * | 1959-04-22 | 1961-10-12 | Walter Hartung Dipl Ing | Fluid valve controlled by pressure medium for automatic flow limitation devices |
DE1119615B (en) * | 1959-09-17 | 1961-12-14 | Landmaschb Iarotes Banneria Ve | Control valve for a double-acting, one-sided loaded hydraulic motor |
DE1103098B (en) * | 1959-09-25 | 1961-03-23 | Ludwig Rexroth | Multipurpose control valve |
DE1205784B (en) * | 1959-09-25 | 1965-11-25 | Grinnell Corp | Reversible auxiliary valve |
DE1173750B (en) * | 1959-12-03 | 1964-07-09 | Francis J Holland | Control valve for supplying an output pressure proportional to an input force |
DE1152020B (en) * | 1960-05-03 | 1963-07-25 | Klein Schanzlin & Becker Ag | Free-wheel check valve for centrifugal pumps with controlled secondary outlet for a control cylinder |
DE1209386B (en) * | 1960-11-15 | 1966-01-20 | Asea Ab | Pressure fluid operated valve |
DE1195123B (en) * | 1961-02-02 | 1965-06-16 | Shafer Valve Co | Automatic valve with pressure medium drive |
US3026906A (en) * | 1961-07-18 | 1962-03-27 | Chatleff Controls Inc | Diverting valve with seats of different sizes |
DE2850590A1 (en) * | 1977-11-29 | 1979-05-31 | Gewerk Eisenhuette Westfalia | ELECTROMAGNETIC VALVE, IN PARTICULAR FOR USE IN HYDRAULIC CONTROLS IN MINING UNDERGROUND WORKS |
DE3226696A1 (en) * | 1981-07-17 | 1983-02-03 | Fiat Auto S.p.A., 10100 Turin | FLOW RATE VALVE FOR HYDRAULIC CIRCUIT |
US4535966A (en) * | 1981-09-26 | 1985-08-20 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Throttle valve |
DE3710351A1 (en) * | 1987-03-28 | 1988-10-13 | Wabco Westinghouse Steuerung | VALVE DEVICE |
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