WET SUMP LUBRICATION SYSTEM.ppt
- 1. 909,SENTHUR POLYTECHNIC COLLEGE DEPARTMENT OFAUTOMOBILE ENGINEERTING SEMINAR-1 Submitted by: RAMESH CHANDRAN E
- 2. WET SUMB LUBRICATION SYSTEM
- 3. MEANING OF LUBRICATION • Friction - is created when there is relative motion between two surfaces • Resistance to motion is defined as friction • Lubrication is use of a material between surfaces to reduce friction • Any material used is called a lubricant
- 4. METHODS OF LUBRICATION • Two main methods • Hydrodynamic lubrication • Boundary lubrication • Hydrodynamic lubrication • Also called complete or full flow • Occurs when two surfaces are completed separated by a fluid film
- 5. METHODS OF LUBRICATION • Two main methods • Hydrodynamic lubrication • Boundary lubrication • Boundary lubrication • Occurs when Hydrodynamic lubrication fails. • By adsorption or chemical reaction
- 6. TYPES OF LUBRICANT - PHYSICAL • Liquid • Typical lubricants are liquid/fluids • Mineral oil or synthetic oils • Solid • Graphite, MoS2 • Semi solid • Greases • Gases • Atomised 2 stroke oils
- 7. TYPICAL LUBRICANTS - APPLICATION • Engine oils • Gear Oils • Turbine Oils • Hydraulic Oils • Metal working oils • Cutting oils • Forming Oils • Rust preventives
- 8. LUBRICANT - COMPONENTS • Base Oils • Mineral by-products of crude oil refining process. • Base oils are polymerized or synthesized further and called synthetic • Additives • Natural • Synthetic
- 9. FUNCTION OF A LUBRICANT • Lubricate - Reduce friction • Cooling - Heat transfer • Cleaning - Detergency • Noise pollution - dampening • Sealing – prevent leakage • Protection – prevent wear
- 10. LUBRICATE – REDUCE FRICTION • The effects of friction • Metal to metal contact • Leads to wear and tear • Generates heat • Results in Power loss • Lubricant reduces friction by forming a film • Reduces ill effect of friction
- 11. COOLING • When fuel is burnt in an engine • 33% is useful power • 33% removed by cooling water • 33% by lube oil and radiation • Lube oil removes heat from all areas and brings it to the engine sump. • Improper cooling can lead to over heating, lead to wear, distortion and failure.
- 12. CLEANING • Cleans carbon and varnish deposits • Flushes the entire system removing • Soot • Deposits • Acids • Wear products • Moisture • Removes external contaminants dust, moisture (external)
- 13. NOISE REDUCTION • Reduce noise • By preventing metal to metal contact • Dampens noise • As between camshaft and tappet
- 14. SEALING • Oil film • Between piston ring and liner • Helps in creating a gas tight seal
- 15. THANK YOU