an auxiliary pressure pump driven by a pump motor to draw {HEAD ~ pressure fluid} from at least one of said pressure fluid accumulator systems and to convert said fluid from a low pressure energy level to {TAIL ~ a high pressure energy level}, said unitary assembly further comprising a central housing formed as a carrier enclosing the auxiliary pressure pump and receiving portions of said high pressure and low pressure accumulator systems, the valve arrangement and the pump motor being interconnected via internal fluid circuits within said central housing, 
an auxiliary pressure pump driven by a pump motor to draw { HEAD ~ pressure fluid } from at least one of said pressure fluid accumulator systems and to convert said fluid from a low pressure energy level to { TAIL ~ a high pressure energy level } , said unitary assembly further comprising a central housing formed as a carrier enclosing the auxiliary pressure pump and receiving portions of said high pressure and low pressure accumulator systems , the valve arrangement and the pump motor being interconnected via internal fluid circuits within said central housing ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH