DE137702C - - Google Patents
Info
- Publication number
- DE137702C DE137702C DENDAT137702D DE137702DA DE137702C DE 137702 C DE137702 C DE 137702C DE NDAT137702 D DENDAT137702 D DE NDAT137702D DE 137702D A DE137702D A DE 137702DA DE 137702 C DE137702 C DE 137702C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- suction
- valve
- plunger
- pump
- 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
- 238000009434 installation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0073—Piston machines or pumps characterised by having positively-driven valving the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Pumpen, welche an die verlängerte Kolbenstange einer Dampfmaschine oder eines Gasmotors angehängt sind, ist es sehr erwünscht, bei Ausbau des vorderen oder hinteren Pumpendeckels auch die Ventile sofort und nicht erst durch Abheben des Druckwindkessels oder Eröffnung besonders angebauter Ventilkästen zugänglich zu erhalten. Diese Forderung führt zu einer vollständig neuen Pumpenbauart, bei welcher sowohl die baulichen Mittel wie auch die Wasserführung im Zusammenhang mit der Ventilwirkung eine geänderte ist.For pumps that are attached to the extended piston rod of a steam engine or a Gas engine, it is very desirable when removing the front or rear Pump cover also the valves immediately and not only by lifting the pressure air vessel or opening of specially attached valve boxes. This requirement leads to a completely new one Pump design in which both the structural means and the water flow in the Relationship with the valve action is changed.
In der Zeichnung ist diese neue Bauart dargestellt. Der Ringraum f für die Zuströmung des Saugwassers ist so grofs gehalten, dafs ein Ringraum fx concentrisch zum Saugwasserraum gebildet wird, welcher als Zuströmung zum Druckventil e dient. Druck- und Saugventilsitz sind zu einem gemeinschaftlichen Stück verbunden, welches zugleich einen Theil des Pumpenkörpers bildet. Die zweite Wand i des Zuführungskanals zum Druckventil kann alsdann zur Plungerführung und Dichtung benutzt werden. Druckventil ex wie Saugventil e liegen hierbei an den Enden eines herausnehmbaren oder mit dem Pumpenkörper vergossenen Einbaues einander gegenüber. Sie sind infolge dessen, wie oben gefordert, bequem von aufsen zugänglich, indem der Pdmpenraum P sowohl als auch der Druckraum P1 durch lösbare Deckel geschlossen ist.This new design is shown in the drawing. The annular space f for the inflow of the suction water is kept so large that an annular space f x is formed concentrically to the suction water space, which serves as an inflow to the pressure valve e . The pressure and suction valve seats are connected to form a common piece which at the same time forms part of the pump body. The second wall i of the feed channel to the pressure valve can then be used for guiding the plunger and sealing. Pressure valve e x e as suction valve are in this case at the ends of a removable or molded with the pump body incorporation each other. They are, consequently, as required above, easily accessible from without by the Pdmpenraum P is closed as well as the pressure chamber P 1 by removable cover.
Die Bauart giebt ein bequemes Mittel an die Hand, um eine unmittelbar vom Plunger bewirkte Steuerung des Saugventils sowohl wie des Druckventils in Anwendung zu bringen. Der Plunger α ist in der einen Todtpunktstellung gezeichnet, bei welcher er nach Beendigung des Saughubes das Ventil e zurückdrückt. Das Druckventil ex kann sich jetzt bei Beginn des folgenden Druckhubes vollständig frei öffnen, bis der Plunger α durch den Anschlag k das Druckventil ex bei Beendigung des Druckhubes schliefst. Saugventil e ist bei Beginn des Saughubes frei und kann in gleicher Weise, wie eben das Druckventil geschildert, durch den Anschlag h des Plungers a geschlossen werden.The design provides a convenient means of employing control of both the suction valve and the pressure valve directly from the plunger. The plunger α is drawn in one dead point position, in which it pushes the valve e back after the suction stroke has ended. The pressure valve e x can now open completely freely at the beginning of the following pressure stroke, until the plunger α closes the pressure valve e x through the stop k at the end of the pressure stroke. Suction valve e is free at the beginning of the suction stroke and can be closed in the same way as the pressure valve just described by the stop h of the plunger a .
Der Plunger α wird durch eine an denselben angeschlossene Kolbenstange ax angetrieben, welche mittels Stopfbüchse durch den Deckel hindurchgeführt ist. Die Pumpe arbeitet in bekannter Weise im Verhältnifs der Kolbenstange U1 zum Plunger α als Differentialpumpe. Wählt man den Durchmesser der Kolbenstange Ci1 gröfser als den des Plungers α, so kann man dies benutzen, um dauernd einen Ueberdruck nach aufsen zu erzielen. Dieser Ueberdruck kann so grofs gewählt werden, dafs bei Antrieb durch Kurbel oder dergl. ein Druckwechsel im Todtpunkte vollständig vermieden wird.The plunger α is driven by a piston rod a x connected to it, which is passed through the cover by means of a stuffing box. The pump works in a known manner in the ratio of the piston rod U 1 to the plunger α as a differential pump. If the diameter of the piston rod Ci 1 is chosen to be larger than that of the plunger α, this can be used to permanently achieve an overpressure towards the outside. This overpressure can be chosen to be so large that when driven by a crank or the like, a pressure change at dead point is completely avoided.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE137702C true DE137702C (en) |
Family
ID=405561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT137702D Active DE137702C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE137702C (en) |
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0
- DE DENDAT137702D patent/DE137702C/de active Active
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