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CHAPTER 11 Intake and Exhaust Systems
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Chapter 11 in Engine and Tractor Power, 4th edition. St. Joseph, Michigan: ASAE. .
Keywords: Air Cleaners, Manifolds, Mufflers, Supercharging an Engine with Air, Turbochargers, Aftercoolers, Engine Families, Air Pressure and Flow in a Turbocharged Engine, Altitude Compensators
The maximum power of an engine is limited primarily by its air supply. Therefore, the intake system must be capable of supplying large quantities of air. The intake system must clean the air and distribute it to the individual cylinders. The exhaust gases from the engine contain both heat energy and kinetic energy of high velocity. The exhaust system must collect the exhaust gases from the individual cylinders, cool them to reduce fire hazards, and reduce their energy levels to provide a quieter engine. A turbocharger sometimes is utilized to extract energy from the exhaust gases and uses it to increase the air delivery rate to the engine. In this chapter, you will learn about intake and exhaust systems and how manufacturers use turbocharging to increase the versatility of engines.