Name Harmit Singh Grewal Topic 4 Lobe in 5 Lobe Oil Pumps Objective Manufacturing Techniques Heat treating of steel parts How lobes were cut 2. Advantages and Disadvantages

Manufacturing Techniques Rotors are constructed out of 316L Stainless Steel Corrosion resistant Most resistant metal when working in Chloride Machined slowly due to material Heated to 1010-1120°C and cooled rapidly

Advantages Easy to service and easy to clean High Efficiency Can handle Solids and liquids Can operate dry for brief periods of time Independent of pressure No pulsating action

Disadvantages Requires timings gears Requires two seals Not effective when using high-viscosity substances Considerable wear due to metal to metal touching

Common Uses Food processing. Beverages. Dairy Produce. Personal Hygiene Products. Pharmaceutical. Biotechnology. Chemical. Industrial. Medium and heavy duty cycles. Cars, run by the crankshaft

Works Cited www.azom.com/details.asp?ArticleID=2382#_Welding www.vikingpump.com/products/rotary_lobe_pumps/rotary_lobe_pumps.htm www.indiacar.com/index2.asp?pagename=http://www.indiacar.com/infobank/oilpumps.htm www.pumpschool.com/principles/lobe.htm

In Conclusion High Efficiency Cheaper Can run dry Very strong materials Easy to clean Considerable Wear and Tear Timing Gears