DE256603C - - Google Patents
Info
- Publication number
- DE256603C DE256603C DENDAT256603D DE256603DC DE256603C DE 256603 C DE256603 C DE 256603C DE NDAT256603 D DENDAT256603 D DE NDAT256603D DE 256603D C DE256603D C DE 256603DC DE 256603 C DE256603 C DE 256603C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- water
- compensating
- compensating piston
- working
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
- F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
- F04B11/0066—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control with special shape of the actuating element
-
- 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
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
- F04B11/0075—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons connected in series
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei den bekannten Differentialpumpen kann eine vollständige Ausgleichung der Wasserlieferung durch den Differential- oder Ausgleichkolben schon deshalb nicht erreicht werden, weil Arbeitskolben und Ausgleichkolben den gleichen Antrieb besitzen und weil daher ihre Totpunkte zeitlich zusammenfallen. Bei der vorliegenden Erfindung ist für den Ausgleichkolben ein von dem Getriebe des Arbeitskolbens abweichender Antriebsmechanismus gewählt worden, welcher ein Zusammenfallen der Totpunkte beider Kolben verhindert, und welcher dem Ausgleichkolben eine derartige Bewegung erteilt, daß er jeweilig das vom Arbeitskolben zu viel gelieferte Wasser aufnimmt und das fehlende Wasser abgibt, somit eine vollkommen oder nahezu gleichmäßige Wasserlieferung erzielt wird. Fig. 1 zeigt ein Ausführungsbeispiel, bei welchem der Antrieb des Ausgleichkolbens α durch eine Kurvenscheibe b erfolgt, die auf der Antriebswelle c sitzt. Da der Kolben α mit der Druckleitung d in steter Verbindung ist, so bleibt er durch die Rolle e stets in Berührung mit der Kurvenscheibe b und erhält eine deren Form entsprechende Bewegung. Die Kurvenscheibe Fig. 2 ist so konstruiert, daß die Summe der Hübe beider Kolben α und f jeweilig proportional dem Ausschlagwinkel der Kurbel ist und daß sich somit bei gleichmäßiger Drehung der Antriebswelle eine vollständig gleichförmige Wasserlieferung ergibt.In the known differential pumps, a complete equalization of the water delivery by the differential or compensating piston cannot be achieved because the working piston and compensating piston have the same drive and because their dead centers therefore coincide in time. In the present invention, a drive mechanism that differs from the gearbox of the working piston has been selected for the compensating piston, which prevents the dead centers of both pistons from coinciding and which gives the compensating piston such a movement that it takes up the water supplied too much by the working piston and that releases missing water so that a completely or almost even water delivery is achieved. Fig. 1 shows an embodiment in which the drive of the compensating piston α is carried out by a cam disk b , which sits on the drive shaft c. Since the piston α is in constant contact with the pressure line d, it always remains in contact with the cam disk b through the roller e and receives a movement corresponding to its shape. The cam disk Fig. 2 is constructed so that the sum of the strokes of the two pistons α and f is proportional to the deflection angle of the crank and that a completely uniform water supply results with uniform rotation of the drive shaft.
Fig. 3 ist das Geschwindigkeitsdiagramm der Wasserlieferungen beider Kolben, und zwar gilt die Linie A-B-C-D für den Arbeitskolben und Linie E-F-G-H-I-K für den Aus gleichkolben. Die resultierende Wassergeschwindigkeit entspricht der Horizontalen E-F-K und ist völlig gleichmäßig.Fig. 3 is the speed diagram of the water supplies from both pistons, namely the line ABCD applies to the working piston and line EFGHIK for the equal piston. The resulting water speed corresponds to the horizontal EFK and is completely uniform.
Die Totpunkte des Ausgleichkolbens liegen bei G und I. Der Ausgleichkolben erhält also eine Bewegung mit langsamem Vorgang und schnellem Rückgang. Selbstredend können auch andere Antriebsmechanismen mit langsamem Vorgang und schnellem Rückgang zu vorliegendem Zwecke Verwendung finden, wie Kurbelschwinge, Schleppkurbel, Ellipsenräder usw., doch wird mit diesen die Ausgleichung der Wasserlieferung nicht ganz vollkommen erreicht.The dead centers of the compensating piston are at G and I. The compensating piston is thus given a movement with a slow process and rapid decline. Of course, other drive mechanisms with a slow process and rapid decline can also be used for the present purpose, such as crank rocker arm, drag crank, elliptical gears, etc., but with these the equalization of the water delivery is not completely achieved.
Auch bei Pumpen mit zwei und mehr Arbeitskolben kann die vorerwähnte Ausgleichung durch einen einzigen Ausgleichkolben bei zweckentsprechender Wahl des Antriebsmechanismus oder entsprechender Formung der Kurvenscheibe erzielt werden. 'The aforementioned compensation can also be used for pumps with two or more working pistons by a single compensating piston with an appropriate choice of the drive mechanism or corresponding shaping of the cam disc can be achieved. '
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE256603C true DE256603C (en) |
Family
ID=514591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT256603D Active DE256603C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE256603C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702008A (en) * | 1952-06-09 | 1955-02-15 | John M Stockard | Pumping apparatus |
| US3230887A (en) * | 1962-10-29 | 1966-01-25 | Beckman Instruments Inc | Even flow apparatus and method for fluid gradient engines and the like |
| EP0407884A3 (en) * | 1989-07-14 | 1991-04-10 | Friedrich Banzhaf | Device for conditioning and dewatering sludges in a filter press |
| DE4005110C1 (en) * | 1990-02-17 | 1991-07-25 | Philips Patentverwaltung Gmbh, 2000 Hamburg, De |
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0
- DE DENDAT256603D patent/DE256603C/de active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702008A (en) * | 1952-06-09 | 1955-02-15 | John M Stockard | Pumping apparatus |
| US3230887A (en) * | 1962-10-29 | 1966-01-25 | Beckman Instruments Inc | Even flow apparatus and method for fluid gradient engines and the like |
| EP0407884A3 (en) * | 1989-07-14 | 1991-04-10 | Friedrich Banzhaf | Device for conditioning and dewatering sludges in a filter press |
| DE4005110C1 (en) * | 1990-02-17 | 1991-07-25 | Philips Patentverwaltung Gmbh, 2000 Hamburg, De |
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