Power brakes meaning

Power brakes definition

(PB) A conventional hydraulic brake system that uses engine vacuum to operate a vacuum power piston , the power piston applies pressure to the brake pedal , or in some cases, directly to the master cylinder piston. This system reduces the amount of pedal pressure that the driver must exert to stop the vehicle. Also called "vacuum-assisted brakes" or "hydraulic-assisted brakes." Also see brake booster .

Automotive Dictionary Index

Automotive terms beginning with "P", page 23

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