Conoce el FRENO de ESCAPE. El más común y simple de los Frenos de Motor.

Diesel engines control engine speed and power by reducing the amount of fuel injected into the engine. A diesel engine does not have an air throttle. Because it does not have an air throttle, a diesel engine offers virtually no engine braking when the driver lifts off the accelerator pedal. There is simply no loss of pumping to retard engine speed as the piston descends on the intake stroke. Air is free to enter the cylinder, restricted only by the flow capacity of the air filter, turbocharger compressor, intercooler, intake manifold, cylinder head port, and intake valve opening. This can be disconcerting to a driver accustomed to the engine braking produced by a gasoline engine, and it can be downright disconcerting to the driver of a heavily loaded diesel pickup truck or RV on a downhill grade, especially if the vehicle's service brakes begin to overheat and fade. Before continuing, we should mention that an exhaust brake is not a noisy compression brake, or a "Jake" brake like the one used on big rig diesel trucks and dump trucks. A Jake brake works by using hydraulic pressure to momentarily open the exhaust valve at the end of the compression stroke, venting the compressed air into the exhaust system. That's where all the noise comes from. The braking from a Jake brake occurs due to the loss of pumping that compresses the air and then eliminates the "bounce" of compressed air on the power stroke. Additionally, there is a loss of pumping as the piston descends on the power stroke with both valves closed and no combustion. An exhaust brake is a device that essentially creates a major restriction in the exhaust system and creates substantial exhaust back pressure to retard engine speed and provide additional braking. In most cases, an exhaust brake is so effective that it can slow a heavily loaded vehicle on a hill without having to apply the vehicle's service brakes. But what actually happens inside the engine when an exhaust brake is activated, and how does the exhaust back pressure force the engine to slow down the entire vehicle? To understand how an exhaust brake works, we must first understand how a diesel generates power, or more specifically, torque. After a diesel engine ingests air on the intake stroke and compresses it on the compression stroke, fuel is injected directly into the cylinder. The heat of compression ignites the fuel, and combustion occurs, releasing more heat to increase the compressed air pressure in the cylinder. This pressure then pushes the piston down on the power stroke to generate torque at the crankshaft. The more fuel burned, the more heat is generated, and the greater the pressure acting on the piston. And, of course, more pressure means more torque. There are several ways to stop a vehicle, such as using the regular brakes, the engine brake, or for diesel-powered vehicles, drivers can also use an exhaust brake. Exhaust brakes can be very effective in the long run and can significantly reduce the speed of a vehicle, regardless of its size or weight. This braking system actually closes the exhaust path and prevents gases from being eliminated through the exhaust pipe. As a result, backpressure is generated in the manifold and cylinders, causing the engine to run backward and subsequently slowing the vehicle. One of the biggest advantages of exhaust brakes is the simple fact that they can take some of the strain off regular brakes and prevent them from overheating, especially when going downhill. _______________________________________________________ Song: Unknown Brain - Perseus (feat. Chris Linton) [NCS Release] Music provided by NoCopyrightSounds. Video Link:    • Unknown Brain - Perseus (feat. Chris Linto...   Download/Stream: http://ncs.io/Perseus ___________________________________________________ Truck accidents as well as the operation of trucks on the road, in mining, on the road, in transportation. Fuller transmission and the handling and operation of trucks, buses, dump trucks, hoppers, cisterns, dump trucks, low beds, vans, trailers, tractors. Sutran, MTC, Ministry of Transportation, Central Highway, Pan-American Highway.