from the Fig. I guess... 3 t. ~4 Y N: }0 t% H , H2 A6 D& [: {+ E mvariable displacement and fixed displacement pumps6 Q3 m) [3 ? Q. d4 C+ J
4 O9 G- l. B6 ]% A+ g1 C2 Gyou can change the swash of one pump to vary the displacement and then change the flow* x7 d% J! M" a9 W3 s# [! p' y" O
( m0 ` T$ L; S6 c; {) R8 M; }
actually the first Fig tells you the relationship of Load pressure and flow . . u9 q; x/ I; ? Y) o. D( Sbased on it . you can determine the horsepower loss and suitable operating pressure. 6 u& ~, I( Y. [% G5 b4 D+ C6 r/ s- p" M4 o/ \2 D$ ^+ K
I guess all above.. not 100% sure