全液壓轉(zhuǎn)向器廣泛應(yīng)用于車輛轉(zhuǎn)向和船舶液壓舵。駕駛?cè)藛T通過它可以用較小的操縱力實(shí)現(xiàn)較大的轉(zhuǎn)向力控制，并且在性能上安全、可靠、操縱上靈活、輕便。

轉(zhuǎn)向器的操縱是全液壓式，也就是說在轉(zhuǎn)向柱和轉(zhuǎn)向輪之間沒有機(jī)械連接，在轉(zhuǎn)向器與轉(zhuǎn)向油缸之間是液壓管或軟管連接。

當(dāng)轉(zhuǎn)動(dòng)方向盤，轉(zhuǎn)向器根據(jù)方向盤轉(zhuǎn)動(dòng)比例輸送相對(duì)的油量,該油量直接流到操縱缸相應(yīng)一側(cè),同時(shí)另一側(cè)的油量回到油箱.

BZZ轉(zhuǎn)向器是一種轉(zhuǎn)閥式全液壓轉(zhuǎn)向器，具有以下優(yōu)點(diǎn)：

◎ 消除機(jī)械式連動(dòng)裝置，可以降低主機(jī)成本，提供可靠輕便的結(jié)構(gòu)； 

◎ 操縱靈活省力,安全可靠； 

◎ 可以很小的力矩進(jìn)行連續(xù)無級(jí)控制轉(zhuǎn)動(dòng)； 

◎ 提供給控制回路以及主機(jī)尺寸廣泛的選擇面； 

◎ 能和多種轉(zhuǎn)向油泵及液壓供應(yīng)系統(tǒng)連接。 

SCU can be used in the area of steering of vehicle and hydraulic rudder of ships where the operator can use it to control power steering force with light operating force.It is safety ,reliable and smooth in the function and operation. 

The operation of steering units is hydrostatic. That is to say, there is no mechanical connection between the steering column and the steered wheels.Instead there are hydraulic pipes and hoses between steering unit and steering cylinders.

When the steering wheel is turned, the steering unit meters an oil volume proportional to the rate of rotation of the steering wheel.This volume of oil is directed to the appropriate side of the steering cylinder, while simultaneously the displaced oil is directed to tank. 

Model BZZ offer the following advantages:

◎Minimizes steering linkage-reduces cost, provides flexibility in design.

◎Provides complete isolation of load forces from  the control station-provides operator comfort.

◎Provides continuous,unlimited control action with very low input torque.

◎Provides a wide selection of control circuits and meter sizes.

◎Can work with many kinds of power steering pumps or fluid supply .