Multiple Pumps

Multiple Pumps

Multiple Pumps

Product catalog summary
Overview: The document provides technical specifications and guidelines for HP Hydraulic's multiple axial piston pumps designed for closed circuits. These pumps are engineered to deliver high performance in compact spaces and are available in various configurations to suit different applications.
Specifications: The pumps are designed to achieve maximum performance with minimal installation space. Special splined shafts are used for pumps of the same series, while standard SAE flanges and splined shafts are used for pumps of different series. The document includes detailed specifications for transmissible torques, which are critical for calculating the total torque of a multiple pump system.
Torque Calculation: The torque calculation is essential for ensuring that each stage of the pump does not exceed its maximum permissible torque. The formula provided is: M = Torque (Nm), ΔP = Pressure (bar), c = Pump displacement (cm³), with a conversion factor of 62.83 and a mechanical efficiency of 0.9. An example calculation is provided to illustrate the process.
Example Calculation: The document provides a step-by-step example of calculating the torque for a four-stage pump system. It highlights the importance of ensuring that the torque at each stage does not exceed the permissible limits. Adjustments to pressure or displacement may be necessary to meet these requirements.
Ordering Information: The ordering code for a multiple pump is constructed by combining the order codes of individual pumps. This ensures that the correct configuration is selected for the intended application.
Maximum Speed: The maximum speed of a multiple pump is determined by the lowest maximum speed of its individual stages. This ensures that the pump operates within safe limits.
Recommendations: For special requirements or conditions, it is advised to contact HP Hydraulic-Bondioli & Pavesi customer service for assistance. Proper dimensioning and adherence to specified limits are crucial for optimal pump performance.
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Catalog excerpts

Multiple Pumps-1

BONDIOLI LSI A & PAVESI l5J w mmiM.iurrm POMPE A PISTONI ASSIALI PER CIRCUITO CHIUSO A CILINDRATA VARIABILE VARIABLE DISPLACEMENT CLOSED CIRCUIT AXIAL PISTON PUMPS AXIALKOLBENVERSTELLPUMPEN FUR DEN GESCHLOSSENEN KREISLAUF

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Multiple Pumps-2

POMPE MULTIPLE MULTIPLE PUMPS MEHRFACHPUMPEN [Nm] Le pompe multiple HP Hydraulic sono state progettate per ottenere il massimo delle performance negli spazi piu ridotti possibili. Al fine di raggiungere valori di coppie trasmissibili rilevanti, per pompe multiple formate da stadi della stessa serie (es. HPP2 con HPP2) sono stati studiati sistemi di trascinamento aventi scanalati speciali. Quando invece si realizzano pompe multiple di serie diverse (es. HPP8+HPA4), gli stadi si assemblano tramite lo standard SAE. Nel catalogo sono presenti, sia per gli alberi che per le predisposizioni, tutte le...

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Multiple Pumps-3

II calcolo si svolge partendo dall’ultimo stadio della pompa risalendo fino all’albero primario. In tutti gli stadi il risultato della coppia calcolata deve essere minore o uguale alle coppia massima ammissibile di ciascun giunto di trascinamento, compreso l’estremita d’albero della pompa. Stadio 4: Gr.2, cilindrata 11 cm3 Pressione massima 150 bar: coppia assorbita = 29.2 Nm. La condizione del giunto 4 e soddisfatta. (limite massimo 120 Nm). Stadio 3: HPA4, cilindrata 46 cm3 Pressione massima 180 bar: coppia assorbita otteniamo: 175.7 Nm (29,2+146,5). La condizione del giunto 3 e soddisfatta. (limite...

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Multiple Pumps-4

Il codice di ordinazione di una pompa multipla si ottiene sommando, come mostrato in esempio, i codici delle singole pompe (stadi) ricavati seguendo le regole di ordinazione delle pompe singole. You build the ordering code of a multiple pump by summing the order code of the individual pumps, see our example. Der Bestellschlüssel einer Mehrfachpumpe ergibt sich durch Summieren der Einzel-Bestellschlüssel, siehe Beispiel STADIO STAGE STUFE STAGE STUFE STADIO STAGE STUFE STAGE STUFE STAGE STUFE STAGE STUFE STADIO STAGE STUFE STADIO STAG

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