vacuum power brake

См. также в других словарях:

• power brake — noun a brake on an automobile that magnifies a small force applied to the brake pedal into a proportionately larger force applied to slow or stop the vehicle • Hypernyms: ↑brake • Hyponyms: ↑airbrake • Part Holonyms: ↑motor vehicle, ↑automotive… …   Useful english dictionary

• Vacuum brake — The vacuum brake is a braking system used on trains. It was first introduced in the mid 1860s and a variant, the automatic vacuum brake system became almost universal in British train equipment, and in those countries influenced by British… …   Wikipedia

• Vacuum servo — A vacuum servo is a component used on motor vehicles in their braking system, to provide assistance to the driver by increasing the braking effort. It is used on virtually all vehicles which use hydraulic brakes for their primary braking circuit …   Wikipedia

• brake — [1] To slow down a vehicle. [2] The mechanism that converts motion (kinetic energy) into heat energy through friction. The most common instance is found in the wheels of cars where the brake shoes or disc pads are designed to press against the… …   Dictionary of automotive terms

• power brakes — (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 …   Dictionary of automotive terms

• vacuum tank — A tank in which a vacuum exists. It is generally used to provide vacuum to a power brake installation in the event engine vacuum cannot be obtained. The tank will supply several brake applications before the vacuum is exhausted …   Dictionary of automotive terms

• Brake bleeding — is the procedure performed on hydraulic brake systems whereby the brake lines (the pipes and hoses containing the brake fluid) are purged of any air bubbles. This is necessary because, while the brake fluid is an incompressible liquid, air… …   Wikipedia

• brake booster — [1] A mechanical device which attaches to the brake system to multiply the force the driver applies with his foot (or hand as in the case of a motorcycle). The device uses air, vacuum, or hydraulic fluid to accomplish this purpose. Sometimes… …   Dictionary of automotive terms

• vacuum suspended power booster — A type of power booster that contains vacuum in both chambers of the booster when the brake pedal is at rest. When the pedal is applied, the rear chamber is vented to the atmosphere, causing the diaphragm of the booster to move toward the master… …   Dictionary of automotive terms

• vacuum runout point — This refers to the point reached when a vacuum brake power piston has built up all the braking force it is capable of with the vacuum available …   Dictionary of automotive terms

• power booster — A device that uses engine vacuum or hydraulic power to assist you in braking the vehicle. Helps the brake pedal to activate the hydraulic pistons in the master cylinder …   Dictionary of automotive terms