CI Fuel Injection - 100 —360° ENGINE OPERATING EVENTS...

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Unformatted text preview: 100 —360° ENGINE OPERATING EVENTS Combustion 2000 Intake k‘Pa Compression Expansion 1000 TC BC TC BC TC Unbu rned TC BC TC BC TC — 180° 0° 180° 360° Crank position and angle FIGURE '1 SeQuence of events in four-stroke spark-ignition engine operating cycle. Cylinder pressure p (solid line, firing cycle; dashed line, motored cycle), cylinder volume V/me, and mass fraction burned x, are plotted against crank angle. 801 E01 1 SOl p A‘ (atm 80ATM : F‘s' '“fl: 1 l l BC FIGURE 2 “8° ‘90 Sequence of events during compression, combustion, and expansion processes of a naturally aspirated compression-ignition engine operating cycle. Cylinder volume/clearance volume V/K, rate of fuel lnjCCliOfl Iii/i, cylinder pressure 12 (solid line, firing cycle; dashed line. motored cycle), and rate of l'ucl burning (or fuel chemical energy release rate) fir” are plotted against crank angle. TC 0a Crank angle 900 BC l80° - ' OVERFLOW RETURN TO FUEL TANK SHUT- FF 3 4 ° GOVERNOR 2 LEVER 14 ‘PUMP DRIVE 32 /\.‘ 31 PUMP . : 29 , V. ,- i- — rutL LINE FROM " I‘“ Nomenclature" " " ' e .. "3 PRIMARY FILTER AND TANK 1. Fulcrum LeverAaae-bly 16. Camshaft Center Bearing _ 'y ‘ \ ‘ 2. Droop Screw , .17. Plunger Spring . 2 . ' ' 3. Tarque Control Can! 18. Control Sleeve Gear Segment 4. Adjustable Stop Plate 19. Lower Spring Seat 5. Delivery Valve Spring and Holder 20. Control Sleeve 6. Delivery Valve Assembly 21. Upper Spring Seat 7. Plunger and Barrel Assembly 22. Camshaft Turned 90° from standard for illustration 23. ClosingPlug purposes 24. Tappet Assembly 8. Tubing Union Nut 25. Camshaft Bearing 9. Fuel Sump 26. Driven Gear, Governor 10. Retaining Nut 27. Drive Gear and Friction Clutch Assembly 11. Fuel Discharge Outlets (6) 28. Flyweight Assembly 1 12. Control Rack 29. Sleeve Assembly » - 13. 'Illspecuoa Cover - 30. Speed Adjusting Screw 14. Hand Primer (Optional) 3]. Fulcrum Lever Pivot Pia 15. 32. Inner/Outer GovernorSprings Lubricating Oil Outlet - a r n . ‘ V‘- ; "-DELWERY flaws. ‘ pummel.“ RACK. .‘f?£\ ' SEGMENT Gem“ ‘ CONTROL sane—~4- 'FLUNGER' FLANGE DISTRIBUTOR PUMPS 19 Fig. No. 39~Sectlonalizedvlew ofModel 100 hydraulic lad Nomenclature 1. Cap Nut 2. Delivery Valve Holder 3. Delivery Valve Spring 4. Spring Guide 5. Discharge Fitting 6. Delivery Valve Assembly. 7. Fill Port & Plunger Bore 8.‘ Plunger 9. Hydraulic Head 10. Distribution Slot 11. Metering Sleeve 12. Control Unit 13. Gear Retainer I4. Thrust Washer 15. Face Gear Hub With Plunger Guide (Oldham Drive) 16. Face Gear 17. Plunger Spring 18. Lower Spring Seat 19. Plunger Button ,_.....\..... . .. ._..,._.V...‘.._._..__.._.. Retainer Nut Spill deflector Plunger Bushing Spray 5? FIGURE 10-17 mm fuel injector and its driving m many and in In, distal can“ A VALVE SEAT PINILE QstSpruy Cone Angle . 52 :Equivalent Spray Angle é. :Position of The First Break-out in. N6; so - new. of node types; left, pintle, and . °‘.‘. {A . VESibFe Flame i spay“ tyn’fi‘h‘, Fig.1 - Shape of the fully developed .. ,.u . .. VW/ mfiEVinywyflflrrfii _ . Section I f . Y r VnsZI/l/ /./lorolcl .. . gunfifing? . H .. MW%%%m%%fiflfifii z ‘ _ vss \ II... \WIIVWIII; s p u'nfi—uyu—n.” ; .. “can: 4:13}... . . \ 4‘ .. s~§\\\\\§W/./%I\_ww¢ufl\a\$%o9 5:53.... rt. ' ’ PRIM‘EBéfimsentaflOn ' I ‘VHafitm Ennan Englm High Pressure Pump 8M P- sued =llflff'] ‘ ‘ E E ! High Pressure Return Injectors Wlhr Air and Mm. Accol. Alr TomP- Temp. Pun. Pml. Poalflun Flow I:- e I! -.-_I 0 . EGR ( Electronic Control Unit Not triggered Triggered High-pressure feed 7 Piezoactuator Control chamber 8 Lever High-pressure chamber 9 Valve plunger Valve and pad Triggered F1 Force on the control plunger Nozzle needle F2 Force acting can the nozzle tip Throttle pintle nozzle Flatted pintle nozzle with conically ground pintle Hole-type nozzle with conical Hole-type nozzle with cylindrical blind hole blind hole Sac-less nozzle ...
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This note was uploaded on 02/01/2012 for the course MECH ENG 333 taught by Professor Drallmeier during the Spring '11 term at Missouri S&T.

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CI Fuel Injection - 100 —360° ENGINE OPERATING EVENTS...

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