| 摘要 |
The invention relates to a brake booster comprising a casing 10 and a flexible diaphragm (seal) 12 which divides the inside of the casing in a sealed manner into a front chamber 16 and a back chamber 18. According to the invention, it comprises at least one passage which passes through it in a sealed manner from one face to the opposite face of the casing. Application to the braking of motor vehicles. <IMAGE>
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