DE372764C - Valve control with electric drive for piston steam engines - Google Patents
Valve control with electric drive for piston steam enginesInfo
- Publication number
- DE372764C DE372764C DES57358D DES0057358D DE372764C DE 372764 C DE372764 C DE 372764C DE S57358 D DES57358 D DE S57358D DE S0057358 D DES0057358 D DE S0057358D DE 372764 C DE372764 C DE 372764C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valve control
- electric drive
- steam engines
- piston steam
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
- F01L25/08—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Magnetically Actuated Valves (AREA)
Description
Ventilsteuerung mit elektrischem Antrieb für Kolbendampfmaschinen. Die Erfindung betrifft eine Ventilsteuerung mit elektrischem Antrieb für Kolbendampfmaschinen, bei welcher die Ventile -durch Solenoide bewegt «'erden. Sie besteht darin, daß das flache Tellerventil durch -zwei oder mehrere gleich lange, parallele Blattfedern geführt wird. Es wird hierdurch eine fast reibungslose Ventilführung erzielt. Das Ventil kann dabei durch Dampfdruck geschlossen und durch elektrische Beeinflussung geöffnet werden. Es kann aber auch durch elektrische ßeeinflussting geschlossen und durch eine zusätzliche 1.-#e(ler geöffnet werden.Valve control with electric drive for piston steam engines. The invention relates to a valve control with an electric drive for piston steam engines, in which the valves -moved by solenoids "" ground. It consists in that the flat poppet valve by two or more parallel leaf springs of equal length to be led. This results in an almost smooth valve guidance. That The valve can be closed by steam pressure and by electrical influence be opened. But it can also be closed by electrical influences and opened by an additional 1 .- # e (ler.
' Zwei Ausführungsbeispiele des Erfinrlungs-@Yegenstandes sind auf der Zeichnung in den Abb. r und 2 dargestellt.'Two exemplary embodiments of the subject matter of the invention are shown in FIG of the drawing in Figs. r and 2 shown.
a ist der Zvlinder, 1) der Kolben, c ein Einlaßventil einer doppeltwirkenden Dampfmaschine. f ist ein mit einer Stromduelle verbundenes Solenoiei, welches um einen fest auf der 1'entilstange sitzenden Eisenkern li angeordnet ist. Durch eine nichtgezeichnete selbsttätige Kontaktvorrichtung wird der Stromkreis des Soletioides periodisch geschlossen und dadurch das Solenoid so magnetisiert, ,Maß es das Einlaßventil c: durch Anheben des 1-isenkerns Ir ungefähr in der Totpunktlage des Kolbens öffnet und kurz nach Totpunkt wieder schließt.a is the cylinder, 1) the piston, c an inlet valve of a double-acting steam engine. f is a solenoid connected to a current duel, which is arranged around an iron core li that is firmly seated on the 1'entil rod. An automatic contact device (not shown) closes the circuit of the solenoid periodically and thereby magnetizes the solenoid so that the inlet valve c: by lifting the 1-core Ir opens approximately at the dead center position of the piston and closes again shortly after dead center.
Die Kontaktvorrichtung kann auf bekannte eise so verstellbar ausgebildet sein, daß durch deren Verstellung einer Veränderung der Eröffnungsdauer des Einlaßventils und der Füllung der -Maschine erreicht wird. Zur Bewerkstelligung einer selbsttätigen Regelung der -Maschine ist es nur nötig, die Kontaktvorrichtung so mit dein Regler der Maschine zu verbinden, daß die Verstellung vom Regler aus erfolgt.The contact device can be designed to be adjustable in a known manner be that by adjusting a change in the opening period of the inlet valve and the filling of the machine is achieved. To accomplish an automatic To regulate the machine, it is only necessary to connect the contact device to your regulator to connect the machine that the adjustment takes place from the controller.
Bei der Ausführungsform nach Abb. r wird ,las Ventil anstatt wie bisher durch eine ge-,pannte Feder durch den im Ventilgehäuse herrschenden Dampfdruck geschlossen. Das Ventil ist dabei durch die bei 1, und 1, am Ventilgehäuse befestigten Blattfedern in, und in_ geführt, tun die bei den üblichen Ventilstangenführungen auftretende Reibung zu :-erineiden. An ihrem oberen Ende trägt die Ventilspindel einen an sich bekannten Dampf-oder i)lpuffer ti, durch welchen ein harter Aufschlag des Ventils auf seinen Sitz vermieden wird.In the embodiment according to Fig. R, the valve is closed by the steam pressure prevailing in the valve housing instead of by a tensioned spring as before. The valve is guided in and in_ by the leaf springs attached to the valve housing at 1, and 1, to: -erineiden the friction that occurs with the usual valve rod guides. At its upper end, the valve spindle carries a steam or i) oil buffer ti known per se, by means of which a hard impact of the valve on its seat is avoided.
In Abb. 2 ist eine ähnliche Anordnung mit dem Unterschied gezeigt, daß das Ventil von ,lein Solenoid auf seinen Sitz gedrückt und bei Unterbrechung des Stromes von einer Feder o unter Überwindung rles Dampfdruckes im Ventilgehäuse geöffnet wird., Bei Gegendruckdampfmaschinen mit zuweilen über den Frischdampfdruck ansteigendem Kompressionsenddruck gestattet diese Anordnung das Einlaßventil durch den Kompressionsdampf in dein Zeitpunkt zu öffnen. in welchem der Isotnpressionsdruck den Frischriampfdruck erreicht hat. Damit wird die Bildung einer Schleife in dem Indikatordiagramm, oder mit anderen Worten, eine negative Arbeit des Kolbens vermieden.In Fig. 2 a similar arrangement is shown with the difference that that the valve is pressed by a solenoid on its seat and interrupted of the current from a spring o overcoming the steam pressure in the valve housing is opened., In back pressure steam engines with sometimes above the live steam pressure This arrangement allows the inlet valve through as the final compression pressure increases to open the compression steam in your time. in which the Isotnpressionsdruck has reached the fresh air pressure. This will create a loop in the Indicator diagram, or in other words, avoiding negative work of the piston.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES57358D DE372764C (en) | Valve control with electric drive for piston steam engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES57358D DE372764C (en) | Valve control with electric drive for piston steam engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE372764C true DE372764C (en) | 1923-04-03 |
Family
ID=7491760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES57358D Expired DE372764C (en) | Valve control with electric drive for piston steam engines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE372764C (en) |
-
0
- DE DES57358D patent/DE372764C/en not_active Expired
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