With technological sophistication, doing certain things has become increasingly seamless in almost all spheres, including automobiles. Car manufacturers constantly include features that make a car more practical. One such technological advancement in cars is the introduction of a brake booster that makes stopping a car effortless.
Generally, a brake booster is a safety braking system component that uses a vacuum to increase the force applied by a driver on a brake pedal—invariably increasing braking power and letting drivers stop with minimal effort. The brake booster comprises several parts working together to achieve this. So in this article, we will discuss the brake booster parts, but first, let’s see the types of brake boosters.
Types of brake booster
The black diaphragm device is standard equipment found in the engine firewall, usually by the driver’s side with the brake master connected to it.
There are basically three types of brake boosters, each differentiated based on what they use in generating the force used to stop the car. They include.
Vacuum brake booster
This is the most commonly used brake booster out there, and chances are your car is currently using one. Vacuum brake boosters are probably common because of their simple design. It typically uses the engine vacuum in normal fuel engines to increase the force applied on the brake pedal. Here, a vacuum diaphragm attached to a vacuum port on a car’s intake manifold increases the brake force.
A vacuum brake booster may be utilized with the standard power brakes or nonintegral anti-locking brakes system. Brake boosters are standard equipment in almost all cars. So should something go wrong with them, you would need to apply more force yourself to stop the car, which is quite stressful.
Therefore, your best bet will be to fix or change. Technically how much you spend depends on the brake booster and which part is faulty. For example, vacuum brake booster parts may cost around $200, whereas other types of brake booster parts may go as high as $500 or more.
Vacuum pump booster (Electro hydro brake booster)
This brake booster is commonly found in hybrid and electric vehicles not capable of producing enough vacuum for a traditional power booster. An electro-hydro booster utilizes high pressured gas accumulator and a vacuum pump to increase the force to stop the car.
Generally, a vacuum pump brake booster can be driven mechanically or via electric motors. While this type of brake booster is common among electric and hybrid vehicles, it can also be used in diesel engines. A vacuum pump brake booster also comes in handy in high-altitude regions where naturally aspirated engines can’t produce sufficient vacuum for the brake booster.
Hydraulic brake booster hydro booster
Hydraulic brake booster utilizes hydraulic pressure created by the power steering pump instead of the vacuum pressure to multiply the braking power to stop your car effortlessly.
This type of brake booster is often found in diesel vehicles when the engine doesn’t allow for the size of a vacuum brake booster. And can be used on vehicles with or without an anti-locking brakes system (ABS).
Brake booster parts
The brake booster consists of several components that work collectively to multiply the braking power used to stop your car effortlessly. But here are the major brake booster parts.
Shafts or booster shafts
Shafts are the small round component on the booster and are used to link the brake pedal and master cylinders. There are basically two types of shafts in a brake booster— the primary and secondary shafts.
The primary shaft is connected to the brake pedal at the driver’s side and used to transfer braking force to the diaphragm to boost the pedal force. This shaft typically opens and closes the atmospheric valve, so fresh air can enter and leave the brake booster to push the diaphragm.
The secondary shaft mechanically connects the brake booster, and brake cylinder used to transfer increased pedal force from the power booster to the brake master cylinder.
Valves
Valves regulate the air and the vacuum used by the brake booster to stop your car. A brake booster uses two types of valves, namely, atmospheric and vacuum valves.
The atmospheric valve is situated at the driver flank of the brake booster and helps in controlling the amount of air entering and leaving depending on the brake pedal movement. The way this valve operates is simple; it opens to release air and clos