AT60908B

AT60908B - Piston slide control for steam engines with a piston slide controlled by a fixed eccentric as the basic slide and with two expansion elements arranged concentrically to it and moved by an adjustable eccentric.

Info

Publication number: AT60908B
Authority: AT
Original assignee: Ets Delaunay Belleville Sa
Priority date: 1910-07-28
Filing date: 1911-06-24
Publication date: 1913-08-25

Description

  

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 und äussere) Seiten arbeitende Druck durch die Kanäle 21 und 22 in Gleichgewicht gebracht. 



  Diese Kanäle gestatten dem Kraftmittel unter die Ventile zu gelangen und werden durch die Kolbenringe des Schiebers geschlossen, sobald dieser, um die Steuerung zu bewerkstelligen, zurückgeht. 



   Der aus zwei Teilen bestehende Kasten 16 hat einen erheblichen Spielraum in der Längsrichtung, unter   dessen Einfluss   er sich während einiger Zeit bewegen kann, ohne eines der beiden Ventile   17, 18   mit sich zu nehmen. Hiedurch wird es diesen Ventilen gestattet, auf ihren Sitzen während des der   Expansionsperiode   entsprechenden Kolbenweges liegen zu bleiben, und zwar infolge Zusammenwirkens des auf ihnen lastenden Kraftmittels, welches sie absperren, und der durch den sich bewegenden Kasten 16 zusammengepressten Federn. 



   Die Kolben 2 und 3 gleiten durch besondere Hülsen 27 und   28,   welche mit den Zylinder- öffnungen, 25, 26 entsprechenden Öffnungen 23,   24   versehen sind.



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 and outer) sides working pressure is balanced by channels 21 and 22.



  These channels allow the power means to get under the valves and are closed by the piston rings of the slide as soon as it goes back to effect the control.



   The box 16, which consists of two parts, has a considerable margin in the longitudinal direction, under the influence of which it can move for some time without taking one of the two valves 17, 18 with it. This allows these valves to remain in their seats during the piston travel corresponding to the expansion period, as a result of the interaction of the force acting on them, which they shut off, and the springs compressed by the moving box 16.



   The pistons 2 and 3 slide through special sleeves 27 and 28 which are provided with openings 23, 24 corresponding to the cylinder openings 25, 26.

Claims

PATENT CLAIM: Piston slide control for steam engines with a piston slide controlled by a fixed eccentric as the base slide and with two expansion organs arranged concentrically to it and moved by an adjustable eccentric, characterized in that the expansion organs on the slide rod (1) are sliding, with frictional connection by springs (19 and 20) provided valves (17 and 18) are arranged, the movement of which takes place through the intermediary of a rod (1) encompassing, provided with play in the end direction and connected to an eccentric of variable advance angle driver (16).