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- 黑色主体:气压助力缸(储能 / 放大推力的核心部件);
- 银色阀组:控制阀与液压分泵(接收主缸液压信号,控制气压输出);
- 前端推杆:直接推动离合器分离拨叉,实现离合器的分离与结合。
- 工作原理
当驾驶员踩下离合器踏板时,主缸产生的液压信号传递到助力器,控制阀打开压缩空气通道,利用气压放大推力,推动推杆动作,大幅降低驾驶员的踩踏力,实现轻松换挡。
三、核心功能与作用
- 省力操纵:利用压缩空气放大踏板力,使离合器踩踏更轻便,减少驾驶员疲劳;
- 精准控制:配合主缸实现离合器的平稳分离与结合,提升换挡平顺性,减少打齿现象;
- 适配重载工况:针对重卡频繁启停、重载运输场景设计,耐冲击、抗疲劳性能优异。
四、产品优势与特点
- 原厂品质保障
瑞立(SORL)是国内商用车制动与操纵系统的龙头品牌,原厂件符合主机厂标准,采用优质密封件与高强度缸体,使用寿命远超副厂件。
- 稳定可靠
经过严格的高低温、耐压、疲劳测试,可适应矿山、工地等恶劣工况,不易出现漏气、漏油、卡滞等故障。
- 安装适配性强
与原车安装孔位、管路接口完全匹配,直接替换安装,无需额外加工,降低维修难度与车辆停摆时间。
五、常见故障与更换提示
- 故障表现:离合器踏板沉重、换挡打齿、分离不彻底、助力器漏气 / 渗油;
- 更换场景:助力器出现漏气、推杆卡滞、密封件老化漏油时,建议直接更换总成,避免维修后再次故障;
- 安装注意事项:安装后需排净管路空气,检查气压管路连接是否牢固,确保助力功能正常。
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Black Main Body: Pneumatic Booster Cylinder (core component for energy storage / force amplification)
Silver Valve Assembly: Control Valve & Hydraulic Slave Cylinder (receives hydraulic signals from the master cylinder and controls pneumatic output)
Front Push Rod: Directly drives the clutch release fork to engage and disengage the clutch.
Working Principle
When the driver depresses the clutch pedal, the hydraulic signal generated by the master cylinder is transmitted to the booster. The control valve opens the compressed air passage, using air pressure to amplify the thrust and drive the push rod. This significantly reduces the driver’s pedal force, enabling smooth and effortless gear shifting.
Core Functions & Roles
- Labor-Saving Operation: Uses compressed air to amplify pedal force, making clutch operation lighter and reducing driver fatigue.
- Precise Control: Works with the master cylinder to achieve smooth clutch engagement and disengagement, improving shift quality and reducing gear grinding.
- Heavy-Duty Compatibility: Designed for heavy-duty applications with frequent starts/stops and high-load transport, offering excellent impact and fatigue resistance.
Product Advantages & Features
Genuine Quality Assurance
SORL is a leading domestic brand in commercial vehicle braking and control systems. Its genuine parts meet OEM standards, using high-quality seals and high-strength cylinder bodies for a service life far exceeding aftermarket alternatives.Stable & Reliable
Subjected to rigorous high/low temperature, pressure, and fatigue tests, it can withstand harsh working environments such as mines and construction sites, with low risk of air leakage, oil seepage, or jamming failures.High Installation Compatibility
Fully matches the vehicle’s original mounting holes and pipeline interfaces, allowing for direct replacement without additional machining. This reduces maintenance difficulty and vehicle downtime.
Common Faults & Replacement Tips
- Fault Symptoms: Heavy clutch pedal, gear grinding, incomplete clutch disengagement, air leakage / oil seepage from the booster.
- Replacement Scenarios: When the booster experiences air leakage, push rod jamming, or seal aging/oil leakage, it is recommended to replace the entire assembly directly to avoid recurring failures after repairs.
- Installation Notes: After installation, bleed the air from the hydraulic lines and check that all pneumatic connections are secure to ensure proper booster function.







