| 摘要 |
A hydraulic pump assembly 20 of a vehicle braking system includes at least one pair of hydraulic pumps for pumping brake fluid. Each pump 13 has a pump member 14 . The pump members 14 of a pair of pumps are disposed in opposing, spaced relation along an axis. An eccentric drive actuator 22 is disposed between the pump members 14 of a pair of pumps so as to move the pump members substantially simultaneously along the axis between first and second positions.
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