more efficient than supercharging. New techniques such as twin-turbo/biturbo (whether parallel or sequential) setups and twin-scroll turbocharger, in combination with technologies such as variable valve timing and direct fuel injection, have cut down on turbo lag. • A turbocharger is basically an air pump. Hot exhaust gases leaving the engine after combustion are routed directly to the turbine wheel side of the turbocharger to make it rotate. That turbine wheel is connected by a shaft to a compressor wheel. • Some systems also include a tip turbine fan which draws air across the charge-air cooler to further reduce the temperature of the compressed air generated by the turbocharger. • A turbocharger, or colloquially turbo, is a turbine-driven forced induction device that increases an internal combustion engine's efficiency and power output by forcing extra air into the combustion chamber.[ This improvement over a naturally aspirated engine's power output is due to the fact that the compressor can force more air—and proportionately more fuel—into the combustion chamber than atmospheric pressure (and for that matter, ram air intakes) alone. Turbocharger VS Supercharger • In contrast to turbochargers, superchargers are mechanically driven by the engine. Belts, chains, shafts, and gears are common methods of powering a supercharger, placing a mechanical load on the engine. For example, on the single-stage single-speed supercharged Rolls-Royce Merlin engine, the supercharger…
A jet engine is a sort of engine that releases a quick moving jet of gas to produce thrust as per Newton's third law of motion. This expansive meaning of jet engines incorporates turbojets, turbofans, rockets, ramjets, pulse jets and pump-jets, yet in like but in common term usage, the term commonly refers to a gas turbine Brayton cycle engine, an type of engine with a revolving compressor fueled by a turbine, with the remaining energy providing thrust. In today’s modern age of aviation, jet…
When studing liquid fuel combustion in gas turbine combustor, complicated principals including reactive flow, spraying, turbulent flow, multiphase flow, convective and radiative heat transfer and their interactions should be considered. In recent 40 years combustion chambers have continuously improved structurally. Present combustion chambers are generally devided to three main groups: Can type, Can Annular type, and Annular type chambers. Combustion chambers consist of components such as…
Durheimer or Christian. Koenigsegg vs Bugatti. Both are amazing companies in the exotic car business today. They have been rivals since Koenigsegg started hitting the streets. Both have a lot of fame and fortune, but which one is better? If you are confused on which one is, then let's break it down. The first thing to break down is the main part that makes the car go, and that is the engine. We’ll start with the Bugatti Chiron. There newest addition to the Bugatti family. This beast is…
Introduction Diesel mechanics have a lot of responsibility whether it is in the shop or if it is on the construction site. Imagine being under or even under the hood of a 5,683 lb truck. Just imagine a person working on an 80,000-pound semi, the average man weighs 191 that's 79,809 bigger than the average joe. History A diesel mechanic does all kinds of different work to keep the community running strong. Without diesel mechanics, we would not have school buses, city buses, semis and more.…
Have you ever wondered why your car is so slow? Well it is most likely because your engine lacks horsepower. There are two ways that power can be added, and that is go forced induction, or go with a high displacement n/a engine. The better choice is the n/a engine, because it has instant torque, it is cheaper to build, and it also has fewer parts to brake. To start off, what is a forced induced engine? A forced induced engine has a turbo or supercharger that draws air from the atmosphere, and…
To identify the preferred rotation direction, a blower performance analysis is needed. A blower is usually an enclosed multiblade rotor that compresses air to a higher discharge pressure. Blower is also known as fan, but, traditionally, blowers do not discharge air at low pressure as some fans do. Figure 1.6 – CENTRIFUGAL BLOWER Dryers use centrifugal blower, where air is radially discharged from the impeller, (or fan wheel), so turns 90° from its inlet to its outlet (Figure 1.6). Air…
turbochargers are more efficient, have a higher peak power band and produces less strain on your engine. Turbochargers are more efficient than superchargers because of the way it compresses air. Superchargers are a belt driven turbine so they use the engine’s crankshaft to compress the air. This steals power from the engine because it need to spin the supercharger for it to work. However turbochargers are gas operated, so they compress air utilizing exhaust gases to spin a turbine. This greatly…
The day of a Diesel Mechanic starts with many things which will be done on a daily basis. A Diesel Mechanic has a very rigorous job that requires a great knowledge of engines and electrical units of a truck. Becoming a diesel mechanic can be a lucrative job however the pay is rewarding for the work you put in and the knowledge you gain from learning about this trait can be used in a day to day lifestyle with your own vehicles. First, you have to test drive vehicles and diagnose any…
The Ten Biggest Lies About Piston Aircraft Engines Many pilots today seem to discuss the engine of their plane and that whatever engine they have is far superior to the other such as Lycoming over Continental or Continental over Lycoming. Each pilot has their own opinion on which engine is their favorite and why they chose that engine over the other. The author shares his statements and what he believes between engines and solves ten lies that pilots believe that are true and gives explanations…