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Brake bleeding

BRAKE BLEEDING 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 bubbles are compressible gas and their presence in the brake system greatly reduces the hydraulic pressure that can be developed within the system. The same methods used for bleeding are also used for purging, where the old fluid is replaced with new fluid, which is necessary maintenance. The brake fluid capacity of a typical automobile is around 500 ml. Brake fluid is toxic, and must be handled carefully and disposed of properly. Most cars use DOT 3 or 4 brake fluids, which may be mixed, but DOT 5 is silicone-based and not compatible with DOT 3 or 4. Note that DOT 5.1 is a higher specification fluid compatible with DOT 3 and DOT 4, but not DOT 5. Most types of brake fluid harm automotive paint and plastics...

Anti-lock breaking system

The vehicle will stop more quickly if the brakes are applied just hard enough to get maximum static friction between the tyres and road. If the brakes are applied harder than this then the wheels will lock, the tyres will skid or slide on the road and a lesser kinetic friction will result. Then braking the vehicle is much less effective. To prevent skidding and thus provide maximum effective braking several devices have been proposed. Mostly skid control of the rear wheels only is provided. Some others provide control at all the four wheels. What is meant by “control” is this. As long as the wheels are rotating the antiskid device permits normal application of the brakes. But if the brakes are applied so tough that the wheels tend to stop turning and thus a skid starts to develop the device comes into operation and partly release the brakes so that the wheels continue to rotate. Still intermittent braking continues. But it is held to just below the point where a skid would s...

Competitions for mechanical engineers

There are various competitions in which you can participate during your graduation. SAE (society of automative engineers) organize three major events every year :  1. BAJA SAE- design and build an all terrain vehicle 2. SUPRA SAE- design and build a formula type race car 3. EffiCycle- design and build a hybrid cycle ASME  ( american society of mechanical engineers) organize human powered vehicle challenge HPVC. ISNE - It organizes go karting championship. If you have interest in automobiles then these competitions will definitely helps you to improve your skills.I was participated in SUPRA SAE (2016).It was a cool experience for me and helps me to improve my basic knowledge. Please like ,share and comment. Subscribe for more updates. Saurabh_savy