DE21719C - Indirect loading of the valves in valve controls - Google Patents
Indirect loading of the valves in valve controlsInfo
- Publication number
- DE21719C DE21719C DENDAT21719D DE21719DA DE21719C DE 21719 C DE21719 C DE 21719C DE NDAT21719 D DENDAT21719 D DE NDAT21719D DE 21719D A DE21719D A DE 21719DA DE 21719 C DE21719 C DE 21719C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valves
- valve controls
- lever
- weight
- 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
- 210000000078 Claw Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000036633 rest Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B25/00—Regulating, controlling, or safety means
- F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
- F01B25/08—Final actuators
- F01B25/10—Arrangements or adaptations of working-fluid admission or discharge valves
-
- 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
- F01L29/00—Reversing-gear
- F01L29/04—Reversing-gear by links or guide rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Prostheses (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 14: Dampfmaschinen.CLASS 14: Steam Engines.
Patentirt im Deutschen Reiche vom 14. Juni 1882 ab.Patented in the German Empire on June 14, 1882.
Um mit Coulissensteuerungen bei Anwendung grofser Voreilwinkel eine genügend lange Ausströmungsperiode, sowie in gegebenen Fällen einen geeigneten Volldruck zu erlangen, wird dem Auslafs- bezw. auch dem Einlafsventil eine indirecte Belastung gegeben.To with coulisse controls when applying large lead angle a sufficiently long outflow period, as well as in given cases to achieve a suitable full pressure, the Auslafs- respectively. also the inlet valve indirect burden given.
Construction I.Construction I.
Das Belastungsgewicht führt sich lose auf der Ventilstange. Der Druck desselben wird mittelst der Druckstangen D und der Hebel K auf die Traverse T und von dieser auf die Spindel ζ übertragen.The load weight runs loosely on the valve rod. The pressure of the same is transmitted by means of the push rods D and the lever K to the cross member T and from this to the spindle ζ .
Drückt der Hebel H unter die Traverse T, so wird zunächst das Gewicht G um den Spielraum S, welchen die Traverse in der Ventilspindeltasche findet, gehoben. Hat die Traverse die Grenze erreicht, so wird auch die Spindel mit dem Ventil mitgenommen.If the lever H presses under the cross member T, the weight G is first lifted by the clearance S that the cross member finds in the valve spindle pocket. If the crossbeam has reached the limit, the spindle with the valve is also taken along.
Beim Rückgang des Hebels sinkt das Belastungsgewicht mit der Bewegung des Hebels abwärts, während die Hebel K dementsprechend sich drehen, bis die Traverse T das untere Ende des Schlitzes bei S erreicht hat und auf die Ventilspindel drückt. In diesem Zeitpunkte hat die freie Bewegung des Mechanismus ihr Ende erreicht und das Gewicht wirkt als Belastungsgewicht durch die Druckstangen D · auf die Ventilspindel. Fig. 1 und 2 zeigen den Moment, in welchem die Auslafsventilspindel angehoben wird.As the lever decreases, the loading weight decreases with the downward movement of the lever, while the levers K rotate accordingly until the cross-member T has reached the lower end of the slot at S and presses on the valve stem. At this point in time, the free movement of the mechanism has come to an end and the weight acts as a loading weight through the push rods D · on the valve spindle. Figures 1 and 2 show the moment at which the outlet valve stem is raised.
Construction II.Construction II.
Beim Anheben drückt der Hebel H, Fig. 3 und 4, unter die Hebel K, welche sich gegen den Bügel B mit den beiden Enden anlehnen. Infolge dessen wird das Gewicht durch die Stangen D gehoben, während die Ventilspindel stehen bleibt, bis die Klauen in der Ventilspindeltasche die Hubbegrenzung erreicht haben. Dann wird das an der Tasche befindliche Ventil mitgehoben. Die diesem Moment entsprechende Stellung ist in Fig. 3 und 4 gezeichnet.When lifting, the lever H, Fig. 3 and 4, presses under the lever K, which lean against the bracket B with both ends. As a result, the weight is lifted by the rods D while the valve spindle remains standing until the claws in the valve spindle pocket have reached the stroke limit. Then the valve on the pocket is lifted with it. The position corresponding to this moment is shown in FIGS.
Beim Rückgange drückt das Gewicht G durch die Druckstangen D die Klauen gegen den Bügel i?, welcher mit der Ventilstange fest verbunden ist, bis die Hebel K an den Querkeil M anstofsen, worauf das Gewicht G auf der Ventilspindel lastet und das Ventil schliefst.When going back, the weight G presses the claws against the bracket i ?, which is firmly connected to the valve rod through the push rods D , until the lever K abuts the cross wedge M , whereupon the weight G rests on the valve spindle and the valve closes.
Der Mechanismus ist nur an dem*Auslafsventile gezeichnet, es würde sich jedoch in gewissen Fällen die Anbringung bei unzureichend starken Maschinen auch bei dem Einlafsventile nothwendig machen.The mechanism is only drawn on the outlet valve, but it would change in certain ways In the case of insufficiently powerful machines, the attachment also applies to the inlet valve make necessary.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE21719C true DE21719C (en) |
Family
ID=298392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT21719D Active DE21719C (en) | Indirect loading of the valves in valve controls |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE21719C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200711A (en) * | 1961-01-13 | 1965-08-17 | Hurth Masch Zahnrad Carl | Work holding, clamping and centering devices for machine tools |
| US3664227A (en) * | 1968-07-30 | 1972-05-23 | Hurth Masch Zahnrad Carl | Pressure-operated device for clamping of workpieces on gear processing machines |
-
0
- DE DENDAT21719D patent/DE21719C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200711A (en) * | 1961-01-13 | 1965-08-17 | Hurth Masch Zahnrad Carl | Work holding, clamping and centering devices for machine tools |
| US3664227A (en) * | 1968-07-30 | 1972-05-23 | Hurth Masch Zahnrad Carl | Pressure-operated device for clamping of workpieces on gear processing machines |
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