Transcript Engine
Engine Cirrus SR22 12/23/03 General • Powered by a Teledyne Continental IO-550-N engine – – – – – Six cylinder Normally aspirated Fuel injected 310 horsepower @ 2700 RPM 2000 hour Time Between Overhaul (TBO) • Dual magneto ignition system General • Attached to airframe by a six-point steel mount structure attached to firewall • Firewall attach points are reinforced with gusset-type attachments that transfer forces into fuselage shell Oil System • Provides engine cooling, cleaning, and lubrication • Delivers hydraulic pressure to governor which regulates propeller pitch • Wet sump, high pressure system • 8 quart capacity Oil System • Components – Oil Pump • Positive displacement pump located within engine case – Oil Cooler • Incorporates a bypass valve which isolates the cooler when the oil temperature is less than 180°F – Oil Filter – Sump (Oil Pan) • 8 quart capacity Oil System • Engine should be operated with between 6 and 8 quarts of oil • Oil and oil filter should be changed every 50 hours after engine break-in • See section 8 of POH for approved and correct grades of oil Oil System • Abnormal Conditions – Oil annunciator will illuminate if: • Oil temperature exceeds 240°F • Oil pressure is less than 10 PSI OIL Cooling System • Accomplished through the combined effort of the oil system and air cooling • Oil System – Air passes over the oil cooler drawing heat away from the oil returned to the engine • Air Cooling – Baffels in the engine cowl direct outside air down through the cylinders and out the underside of the cowl Air Induction System • Air passes through a dry-foam air filter, through the throttle butterfly valve, into the engine manifold, and then into the cylinder combustion chambers • Alternate Air – Use if main induction becomes clogged – Pilot will note loss of engine power and/or roughness – Source is inside cowl – Unfiltered air Ignition System • Dual ignition system – 2 spark plugs per cylinder • Two engine driven magnetos provide electricity for spark – Right Magneto • Lower Right and Upper Left Spark Plugs – Left Magneto • Upper Right and Lower Left Spark Plugs Exhaust System • Exhaust manifold connects each cylinder to the muffler • Two mufflers, left and right • Exhaust gasses vented at the underside of the engine cowl • Heat exchanger on right muffler provides cabin heat Engine Controls • Power Lever – Single lever that controls both throttle position and propeller governor position • Throttle – Controls amount of air metered to cylinders from the throttle valve • Mixture – Controls mixture control valve located in the engine driven fuel pump • Start/Ignition - allows selection of independent magnetos, both magnetos, and starter engagement • Alternate Air – allows selection of alternate induction air. Located in the pilots foot well to the left Indicating • • • • • Oil Warning Light Tachometer Oil Temperature Oil Pressure Exhaust Gas Temperature • Cylinder Head Temperature • Fuel Flow • Manifold Pressure