Generally speaking, a whole hydraulic pressure system by dynamical part, control part, carry out implement comprise with auxiliary part, include a certain number of hydraulic pressure return among them. Plant of power of imitate machine hydraulic pressure (HPU-Hydraulic Power Unit) , just as its name implies, it is the dynamical part of system of imitate machine hydraulic pressure, the engine as the plane is same, it makes what pressure oil carries hydraulic pressure drive move implement inside, go to the platoon that answer oil inside gasoline tank.

The plant of hydraulic pressure power of machine of imitate of series of THALES C2000X PLUS M2K has two kinds of form model: "4 pump " and " 3 pump " compose. "4 pump " include 2 motion pump, operate 1 times to load pump and a cooling pump; And dynamoelectric to using operate the imitate machine of to load system, with respect to leave out operate to load pump, become " 3 pump " compose (2 motion pump and a cooling pump) . The article with deep boat 737-800FFS " 4 pump " compose for exemple, explain its structural composition and function simply. Typical " 4 pump " exterior compose if pursue 2.1, graph 2.2 show 2.3 times with the graph.

Graph 2.1

Graph 2.2

Graph 2.3

Look from the structure, box of oiliness of bag of plant of hydraulic pressure power, electric machinery / watch of box of the pump component, control valve component, control that start, heat exchanger and sensor, pressure, oily / the accessory such as air filter; Tell from the function, plant of hydraulic pressure power has hydraulic pressure system for returning oil and the function that control oil. The droit inconvenience that considers manufacturer data is open. Specific content asks the data such as blueprint of system of referenced and corresponding text description, hydraulic pressure and circuit blueprint.

　　 (one) electric machinery / pump component

Electric machinery / pump component includes:

Electromotor of asynchronous of 2 55KW three-phase / open circuit type discharges pump of quantity force plunger changeably (athletic pump)

Electromotor of asynchronous of three-phase of a 7.5KW / open circuit type discharges pump of quantity force plunger changeably (operate to load pump) .

Electromotor of asynchronous of three-phase of a 4KW / pump of lamina of the quantity that decide a platoon (cooling pump) .

Because drive movement,pump is mixed operate the electric machinery power input of to load pump is certain, so the power of pump also is fixed, w=P*Q/ η , among them the power input that W is pump, p is the pressure of pump, q is the discharge of pump, η is overall efficiency (machinery and cubage efficiency) ; Assume η is approximate constant, so P and Q are relation of approximate inverse ratio, because this motion pump is negative flow control, namely Gao Zeliu measures pump output pressure small; Vice versa. Relation of this kind of control is the laden induction that passes pump (Load Sensing) will come true with cubage timing loop.
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