| 摘要 |
A tandem master cylinder comprising first and second oil chambers having first and second pistons and first and second springs disposed in each of said respective chambers, the second piston being connected with a hydraulic push rod; a bypass chamber; and two one-way valve means mounted at one side of the bypass tube and in the body of the first piston for establishing one-way oil flow passage from the second chamber to the first chamber and then to the second chamber. The tandem master cylinder allows the braking power increasing ratio between the front wheels and the rear wheels to follow a nonlinear curve for improving braking efficiency.
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