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2. Exhaust brake - Wikipedia

   en.wikipedia.org/wiki/Exhaust_brake

   An exhaust brake is a means of slowing a diesel engine by closing off the exhaust path from the engine, causing the exhaust gases to be compressed in the exhaust manifold, and in the cylinder. Since the exhaust is being compressed, and there is no fuel being applied, the engine slows down the vehicle.

3. Retarder (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Retarder_(mechanical...

   Exhaust brakes are simpler in operation than an engine brake.Essentially, the exhaust pipe of the vehicle is restricted by a valve.This raises the pressure in the exhaust system, forcing the engine to work harder on the exhaust stroke of its cylinders, so again the engine is acting as an air compressor, with the power required to compress the air being withheld from the exhaust pipe, retarding ...

4. Automobile repair shop - Wikipedia

   en.wikipedia.org/wiki/Automobile_repair_shop

   A muffler shop, also called an exhaust shop, is a business model that concentrates solely on the engine exhaust system. These facilities utilize large tubing benders which allow a technician to fabricate a new exhaust system out of otherwise straight lengths of pipe. [1] Welding is often necessary in this line of work.

5. Some emissions from tires and brakes can be much worse than ...

   www.aol.com/news/emissions-tires-brakes-much...

   Governments in China, Europe and the U.S. have focused for years on limiting emissions from vehicles, but a new report from across the pond finds that airborne particulate pollution from tire wear ...

6. Engine braking - Wikipedia

   en.wikipedia.org/wiki/Engine_braking

   A compression release brake (also known as a Jacobs brake or "jake brake"), is the type of brake most commonly confused with real engine braking; it is used mainly in large diesel trucks and works by opening the exhaust valves at the top of the compression stroke, so the large amount of energy stored in that compressed air is not returned to ...

7. Compression release engine brake - Wikipedia

   en.wikipedia.org/wiki/Compression_release_engine...

   When activated, the exhaust valve opens very briefly near the engine's top dead center, and releases the compressed air in the cylinder so that the air compression energy is not returned to the crankshaft. A compression release engine brake can assist a vehicle to maintain or even reduce speed with minimal use of friction brakes.