DIESEL ENGINE

GROUP 7IV- ST. PHILIP THE APOSTLE

Members:

Sebiano, AdrianLorenzana, HazelLuna, ElijahComicho, Mark StevenDecalan, Carrie

I. INTRODUCTIONa. What is the specific heat engine you are going to do.?- Diesel Engine

b. How does it function- Mostdieselenginesuse a four-stroke cycle: the pistons first, downward stroke draws in air; the second, upward stroke compresses it; the third, downward stroke, following combustion, delivers power; and the fourth, upward stroke expels waste gases. Attheendofapiston compression stroke, a fuel injector sprays fuel into the combustion chamber. Air temperature inside the chamber at that point is about 540 C (about 1000 F). The fuel ignites, causing a rapid expansion of hot air that forcefully pushes the piston downward. That downward power stroke turns the crankshaft. c. What are the parts of the engine and its function?1. Top Cover- pouring of motor oil.2. Cylinder Head- Passageway of the motor oil and water 3. Crank Shaft- placement of the piston and connecting rod for spinning in the machine. It transforms the reciprocating motion of the piston into a rotary motion.4. Block- body of machine, where the crankshaft is connected.5. Injection Pump- the diesel in the tank will pass by the injection pump, then go to cylinder head where there is production.6. Fuel Filter- filter the oil and motor oil. 7. Blower (machine)- it produces air in order to make the machine temperature stable.8. Water Pump- circulate the water within the machine9. Fly Wheel- where the clutch lining is connected in order to be clutch. The flywheel has gear teeth around its perimeter that allow the starting motors to engage and crank the diesel.10. Clutch Lining- it makes the engine work. 11. Crankis- store of motor oil and where the oil drained. 12. Connecting Rod- holds the piston.13. Piston and Piston Rings- To prevent the combustion gasses from bypassing the piston and to keep friction to a minimum, each piston has several metal rings around it. These rings function as the seal between the piston and the cylinder wall and also act to reduce friction by minimizing the contact area between the piston and the cylinder wall.14. Engine Lubrication- One purpose is to lubricate the bearing surfaces. The other purpose is to cool the bearings by absorbing the friction generated heat. The flow of oil to the moving parts is accomplished by the engine's internal lubricating system. II. OBJECTIVES- To make a scale model of diesel engine.

III. MATERIALSMEASUREMENTS 1. Bottle (1.5) 2. Hose/Pipe 2 or 3 inches3. 2 spring 4 or 5 inches4. Lace (shoe) 1.5 or 2 feet5. Wire6. CD(disc)1 or 2 inches7. Pole/ Stick 1 or 1.5 feet

IV. PROCEDUREa. How will you prepare the materials you will use?- The materials that will be used especially to those improvise parts of the diesel engine model should be done first so that upon doing the project (product) there will no delay in doing so and also so that it will be done successively. The materials to be used should be complete and durable. b. How will you assemble the engine?- The engine will be assembled accordingly. Constructing it step by step. The disc will be cut to its desired length and will serve as a winder where the lace will rotate into it. There will be 3 pairs that will be made wherein the two pairs will be connected to the both ends of the pole while and for the other pair it will be connected on the top of the other pair one, so that all parts will work and rotate. The bottle will be located at the center of the pole and inside the bottle there is the piston(improvise) wherein there will be up-and-down or reciprocating.

V. DESIGN