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Tham khảo tài liệu 'volume 1 mechanical science handbooks doe-hdbk part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Diesel Engine Fundamentals DOE-HDBK-1018 1-93 OBJECTIVES ENABLING OBJECTIVES Cont. 1.6 EXPLAIN the operation of a 2-cycle diesel engine including when the following events occur during a cycle a. Intake b. Exhaust c. Fuel injection d. Compression e. Power 1.7 DESCRIBE how the mechanical-hydraulic governor on a diesel engine controls engine speed. 1.8 LIST five protective alarms usually found on mid-sized and larger diesel engines. Rev. 0 Page vii ME-01 OBJECTIVES DOE-HDBK-1018 1-93 Diesel Engine Fundamentals Intentionally Left Blank ME-01 Page viii Rev. 0 Diesel Engine Fundamentals DOE-HDBK-1018 1-93 DIESEL ENGINES DIESEL ENGINES One of the most common prime movers is the diesel engine. Before gaining an understanding of how the engine operates a basic understanding of the engine s components must be gained. This chapter reviews the major components of a generic diesel engine. EO 1.1 DEFINE the following diesel engine terms a. Compression ratio b. Bore c. Stroke d. Combustion chamber EO 1.2 Given a drawing of a diesel engine IDENTIFY the following a. Piston rod e. b. Cylinder f. c. Blower g. d. C rankshaft Intake ports or valve s Exhaust ports or valve s Fuel injector Introduction Most DOE facilities require some type of prime mover to supply mechanical power for pumping electrical power generation operation of heavy equipment and to act as a backup electrical generator for emergency use during the loss of the normal power source. Although several types of prime movers are available gasoline engines steam and gas turbines the diesel engine is the most commonly used. Diesel engines provide a self-reliant energy source that is available in sizes from a few horsepower to 10 000 hp. Figure 1 provides an illustration of a common skid-mounted diesel-driven generator. Relatively speaking diesel engines are small inexpensive powerful fuel efficient and extremely reliable if maintained properly. Because of the widespread use of diesel engines at DOE facilities a basic .
