from the Fig. I guess... ! u$ w: J3 Y6 K7 J# Y( Z 2 f# b. g, H0 p& `+ a* Wvariable displacement and fixed displacement pumps 4 {2 p5 @* M6 T7 A' ?, h7 {6 k0 L' o/ @: E
you can change the swash of one pump to vary the displacement and then change the flow ' M* \5 x8 P) O* z 5 M0 j" K0 A2 Ractually the first Fig tells you the relationship of Load pressure and flow . % b( ^9 y- _/ G1 ^6 q( }
based on it . you can determine the horsepower loss and suitable operating pressure.6 t# C. m7 H9 `
5 ~& O6 ]1 w$ _( }5 ~& v
I guess all above.. not 100% sure