DE123050C - - Google Patents
Info
- Publication number
- DE123050C DE123050C DENDAT123050D DE123050DA DE123050C DE 123050 C DE123050 C DE 123050C DE NDAT123050 D DENDAT123050 D DE NDAT123050D DE 123050D A DE123050D A DE 123050DA DE 123050 C DE123050 C DE 123050C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- linkage
- lever
- valve lever
- spindle
- 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.)
- Active
Links
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
- F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
- F01L31/16—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear the drive being effected by specific means other than eccentric, e.g. cams; Valve adjustment in connection with such drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
Description
KAISERLICHES Λ IMPERIAL Λ
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft eine Vorrichtung zur Verhütung von Gestängebrüchen bei zwangläufigen Ventilsteuerungen, welche sich von bekannten Anordnungen dieser Art dadurch unterscheidet, dafs nicht wie bisher die obere Verlängerung der Ventilspindel oder beispielsweise das Steuergestänge nachgiebig gestaltet wird, sondern die zur Erzielung der gewünschten Wirkung bestimmte Federung unmittelbar an der Gelenkverbindung zwischen Ventilspindel und Ventilhebel, also im Angriffspunkte des letzteren, vorgesehen wird.The invention relates to a device for preventing linkage fractures in the case of inevitable Valve controls, which differs from known arrangements of this type in that not the upper one as before Extension of the valve spindle or, for example, the control linkage designed to be flexible is, but the suspension intended to achieve the desired effect immediately at the articulated connection between the valve spindle and the valve lever, i.e. at the point of application of the latter, is provided.
In beiliegender Zeichnung zeigt:The attached drawing shows:
Fig. ι die Stellung der Theile beim Oeffnen des Ventils undFig. Ι the position of the parts when opening the valve and
Fig. 2 die Stellung beim Schliefsen des Ventils.2 shows the position when the valve is closed.
Wenn bei Ventilsteuerungen der oben erwähnten Art sich das Steuergestänge α vermittelst des sich auf dem Stein c abwälzenden Ventilhebels b in Richtung des Pfeiles in Fig. 2 bewegt, so wird das Ventil zwangläufig nach unten geführt und geschlossen. Da nun während der ganzen Aufwärtsbewegung des Gestänges die Bahn d des Ventilhebels b mit dem Gleitstein e in Berührung bleibt, so wird auch das Ventil während dieser Zeitdauer zwangsweise auf seinen Sitz geprefst. Wenn nun zwischen den Ventilteller und den Ventilsitz aus irgend welcher Veranlassung ein Körnchen Sand oder ein anderer Fremdkörper gerathen ist, so würde unfehlbar ein Bruch der Ventilspindel bezw. des Ventilhebels b oder des Steuergestänges α eintreten, wenn nicht Mafsregeln hiergegen getroffen sind.If, in valve controls of the type mentioned above, the control linkage α moves in the direction of the arrow in FIG. 2 by means of the valve lever b rolling on the stone c, the valve is forced downwards and closed. Since the path d of the valve lever b remains in contact with the sliding block e during the entire upward movement of the linkage, the valve is also forcibly pressed onto its seat during this period of time. If, for whatever reason, a grain of sand or some other foreign body got between the valve disk and the valve seat, the valve spindle would inevitably break. of the valve lever b or the control linkage α occur, if measures are not taken against this.
Die vorliegende Anordnung zur Erreichung des in Rede stehenden Zweckes besteht nun in einer federnden, in besonderer Weise gestalteten Verbindung zwischen dem Ventilhebel b und der Ventilspindel f. The present arrangement for achieving the purpose in question now consists in a resilient, specially designed connection between the valve lever b and the valve spindle f.
Das an der Ventilspindel f angreifende Auge des Ventilhebels b umfafst den Drehbolzen h nur mit der unteren Hälfte. Auf der entgegengesetzten bezw. oberen Seite des Drehbolzens h wird ein in einem Ansätze des Ventilhebels b verschiebbarer Klotz k durch eine Feder g angedrückt.The eye of the valve lever b engaging on the valve spindle f encompasses the pivot pin h only with the lower half. On the opposite respectively. On the upper side of the pivot pin h , a block k, which can be displaced in an approach of the valve lever b, is pressed on by a spring g.
Durch diese Anordnqng wird im Bedarfsfalle ein Ausweichen des Klotzes bezw. eine Abwärtsbewegung des Ventilhebels im Gelenke selbst, also an einer günstigen Stelle ermöglicht.Through this arrangement, if necessary, an evasion of the block is BEZW. one Downward movement of the valve lever in the joint itself, that is, in a convenient place.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE123050C true DE123050C (en) |
Family
ID=391922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT123050D Active DE123050C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE123050C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9743714B2 (en) | 1997-08-22 | 2017-08-29 | Boa Technology Inc. | Reel based closure system |
US9867430B2 (en) | 2003-06-12 | 2018-01-16 | Boa Technology Inc. | Reel based closure system |
-
0
- DE DENDAT123050D patent/DE123050C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9743714B2 (en) | 1997-08-22 | 2017-08-29 | Boa Technology Inc. | Reel based closure system |
US9867430B2 (en) | 2003-06-12 | 2018-01-16 | Boa Technology Inc. | Reel based closure system |
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