Presentation on theme: "Engines Internal combustion engine needs"— Presentation transcript:
1 Engines Internal combustion engine needs fuel, ignition and compressionin order to run.Four-Stroke Gasoline EngineTwo-Stroke Gasoline EnginesDiesel EngineRotary EngineSteam Engine
2 Engines Configuration Inline Engines: The cylinders are arranged in a line, in a single bank.V Engines: The cylinders are arranged in two banks, set at an angle to one another.Flat Engines: The cylinders are arranged in two banks on opposite sides of the engine
3 Engines Parts Valves: Minimum Two Valves pre Cylinder Exhaust Valve lets the exhaust gases escape the combustionChamber. (Diameter is smaller then Intake valve)Intake Valve lets the air or air fuel mixture to enter thecombustion chamber. (Diameter is larger than the exhaust valve)
4 Engines Valve Springs: Keeps the valves Closed. Valve Lifters: Rides the cam lobeand helps in opening the valves.
5 EnginesDifferent arrangement of valve and camshaft.
6 Engines Cam Shaft: The shaft that has intake and Exhaust cams for operating the valves.Cam Lobe: Changes rotary motioninto reciprocating motion.
7 Engines Spark Plug It provides the means of ignition when the gasoline engine’s piston is at the endof compression stroke, close toTop Dead Center(TDC)The difference between a"hot" and a "cold" sparkplug is that the ceramic tipis longer on thehotter plug.
8 Engines Piston A movable part fitted into a cylinder, which can receive andtransmit power.Through connecting rod, forcesthe crank shaft to rotate.
9 Engines Cylinder head Part that covers and encloses the Cylinder. It contains cooling fins or water jacketsand the valves.Some engines contains the cam shaftin the cylinder head.
10 Engines Engine Block Foundation of the engine and contains pistons, crank shaft,cylinders, timing sprockets andsometimes the cam shaft.
11 Engines Connecting (conn.) Rod Attaches piston (wrist-pin) to the crank shaft (conn. rodcaps).
12 Engines Crank Shaft Converts up and down or reciprocating motion into circular or rotary motion.DAMPNER PULLEYControls Vibration
13 Engines Piston Rings Four stroke: Three rings Top two are compression rings (sealingthe compression pressure in the cylinder)and the third is an oil ring (scrapesexcessive oil from the cylinder walls)Two Stroke: Two RingsBoth the rings are Compression rings.
14 Engines Flywheel Attached to the crankshaft Reduces vibration Cools the engine (air cooled)Used during initial start-upTransfers power from engine todrivetrain