Vacuum brake booster - How it works! (Animation) 

These seem to be quite similar to air brakes which I was taught when I was becoming a army driver(many trucks use air brakes). Excellent animation and very informative video. Keep up the good work!

Thank you for this perfect explanation, helped me lot.

Whenever I learn about stuff like this I'm just amazed. Incredible ideas and engineering

Perfectly explained! Thank you!!

Excellent animation, making this important automotive devise easier to understand. Thank you.

So much better than the other videos related to the same thing

Important to mention… When the piston is in the rest position, the brake fluid will be balanced via The compensation hole. This compensation hole is very small, clean this compensation hole with a very thin wire of copper, if it would clog… you are guaranteed a dragging caliper, this has already happened to me twice!!! with the Honda CBX 1000. Stay Safe.

Thanks. Have to switch mine out but know how it works makes it a bit easier to understand the what and why.

thank you for your video..

Thank you for sharing. Very beneficial.

wow! had a lot of trouble trying to understand this solely off words from my textbook. Great animation and explanantion! if possible , can you do animations over hydraulic brake valves?( proportioning ,pressure sensitive proportioning, load sensitive, metering, combination etc. valves)

Hello, Thomas! Yours animations are great!!! Please, can you do the animation about diesel injector pump and common rail system? Thank You for your videos!!!

Love your animations!

You are a legend!!

Thank you.

Thank you!!

What failure in the brake booster can cause the brake pedal to not return fully after application of brakes?

So is the use of the air that goes out of the vacuum

Wow.. I did not expect that.... so the booster uses atmospheric pressure while the master cylinder uses hydraulic fluid.

How does the braking stop? I guess the springs returns the diaphragm back. So the vacuum is only assisting the brakes, force is still exerted by legs. Good thing if brake assist failed.

I can’t get the link between the brake pedal and the brake booster to move When installing. Do I need to crank the engine to add vacuum in order to let the linkage move?

I wish you did another one for hybrid far braking systems.

this is the beauty of mechanical engineering fluid mechanics course.

1:18 looks like a giant valve core 😂

Thanks

How is there a vacuum behind the diaphragm before you push the brake pedal? I mean, there is atmospheric pressure when you push the brake, so at some point this pressure needs to be reduced to stop braking?

can I ask a question never mentioned when vacuum boost brakes explained. When press brake pedal separating the 2 compartments and opening valve to atmospheric pressure surely the air will rush in and cause severe maximal braking - which clearly does not happen in practice. So what moderates the system. Is it the fact that when the diaphragm moves forward it takes the rest of the unit with it and thus pulls it away from the rod you are pushing on and this shuts off the air inflow - unless you push further down to maintain pressure and thus allow continuing air inflow. I think this must be a critical component to the brake function and wonder why never mentioned!

And then what... that diaphragm pushes oil into the brake lines?

Which car is that

Now, knowing this animation, is it possible for the brake booster to be the culprit of a low brake pedal?

where is the plunger

Does anyone know how a vacuum is created within the brake servo ??

what is animation software?

So basically it uses hydraulic principles and the different areas to apply braking pressure using air besides the other hydraulics of the brake fluid. I find this explanation rather strange but thanks anyways.

::::55 go control housing.

Excellent animasion I am learning English rate me in the like goes

How does atmospere pressure goes out again. Creating vacuume in pressure chamber

Shouldn't the red arrows really be on the other side of the diaphram to demonstrate pulling due to vacumn?

"vaccum is present" "vaccum is supplied by the engine" Technological language is more accurate when we don't try to be semantically correct

So, this would cause my motor to uncontrollably Rev...?....

Beratttt

Hindi me

Wut

Vacuum brake invented by gurprasad das

Change ur thumbnail NOW!!

And after you are done braking how does the atmosphairic pressure from the diaphram stops pressuring the disk?