助力泵图片原理－真空泵真空助力器工作过

MG7

真空泵真空助力器工作过程是：在非工作的状态下，控制阀推杆回位弹簧将控制阀推杆推到右边的锁片锁定位置，真空单向阀口处于开启状态，控制阀弹簧使控制阀皮碗与空气阀座紧密接触，从而关闭了空气阀口。此时真空助力器的真空气室和应用气室分别通过活塞体的真空气室通道与应用气室通道经控制阀腔处相通，并与外界大气相隔绝。发动机起动后，发动机的进气歧管处的真空度上升，随之，真空助力器的真空气室、应用气室的真空度均上升，并处于随时工作的准备状态。
            　　当进行制动时，踩下制动踏板，踏板力经杠杆放大后作用在控制阀推杆上。首先，控制阀推杆回位弹簧被压缩，控制阀推杆连同空气阀柱往前移。当控制阀推杆前移到控制阀皮碗与真空单向阀座相接触的位置时，真空单向阀口关闭。此时，助力器的真空气室、应用气室被隔开。此时，空气阀柱端部刚好与反作用盘的表面相接触。随着控制阀推杆的继续前移，空气阀口将开启。外界空气经过滤气后通过打开的空气阀口及通往应用气室的通道，进入到助力器的应用气室（右气室），伺服力产生。由于反作用盘的材质（橡胶件）有受力表面各处的单位压强相等的物理属性要求，使得伺服力随着控制阀推杆输入力的逐渐增加而成固定比例（伺服力比）增长。由于伺服力资源的有限性，当达到最大伺服力时，即应用气室的真空度为零时（即一个标准大气压），伺服力将成为一个常量，不再发生变化。此时，助力器的输入力与输出力将等量增长；取消制动时，随着输入力的减小，控制阀推杆后移，真空单向阀口开启后，助力器的真空气室、应用气室相通，伺服力减小，活塞体后移。就这样随着输入力的逐渐减小，伺服力也将成固定比例（伺服力比）的减少，直至制动被完全解除。
            Vacuum Pump Vacuum Booster work process is: in the non-work state,
            the control valve putting control valve return spring to push the
            putt to the right of the lock pieces locked position, the vacuum
            one-way valve port is turned on, the control valve spring to control
            the valve diaphragm in close contact with the air valve seat, thus
            closing the air valve port. At this point the true vacuum booster
            and application of the air chamber air chamber through the piston
            body were the true channel and application of the air chamber air
            chamber passage through the control valve chamber at similarities,
            and isolated from the atmosphere with the outside world. After
            starting the engine, the engine intake manifold vacuum at rising,
            with the attendant vacuum booster true air chamber, the application
            of the vacuum chamber were up and ready to work in a state of
            readiness.
            When it comes to braking, depresses the brake pedal, pedal power
            amplified by the leverage role in putting on the control valve.
            First of all, putting control valve return spring is compressed,
            control valves putter move forward with the air valve stem. When the
            control valve to move pre-fader control valve diaphragm and vacuum
            contact with one-way valve seat position relative to the vacuum
            one-way valve port closed. At this point, the real booster air
            chamber, the application chamber was separated. At this point, the
            air valve stem end is just the counter-plate surface in contact.
            With the control valve to continue putting forward, the air valve
            port will open. The outside air through a filter after the air by
            opening the air valve air chamber port and gateway to use the
            gateway into the application of booster air chamber (right chamber),
            servo power generated. As the reaction plate material (rubber
            pieces) of the force throughout the surface of the unit pressure
            equal to the physical attributes required to make power with the
            servo control valve to gradually increase the input force putter
            made a fixed ratio (servo power ratio) increased. As the servo power
            limited resources, when the force reaches the maximum when the
            servo, that application of the vacuum chamber is zero (ie, a
            standard atmospheric pressure), servo power will be a constant, no
            change. At this point, booster input power and output force will
            equal growth; cancel braking, with the input power decreases, the
            control valve putting retracting the vacuum one-way valve port
            opens, the true air-chamber booster , the application chamber
            interlinked, servo power decreases, the piston body after the shift.
            In this way the gradual decrease as the input power, servo power
            also will become a fixed ratio (servo power ratio) reduction, until
            the brakes have been completely removed.

AHXCJSY

很好，正在找真空助力器的相关资料，谢谢

花心痦子

这个以后要用 感谢楼主

xinmin10

带BA的真空助力器呢？

akulaqiang

也求带BA的结构图.

yzwxd

同求带ba的就构图