奔驰汽车M272发动机燃油喷射和点火系统高级培训

1、奔驰汽车M272发动机燃油喷射和点火系统高级培训 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module As at 0504 This document is intended solely for use in training and is not subject to regular

2、 updating Printed in Germany Note 2004 Copyright DaimlerChrysler AG The term employees does not imply any preference of gender and incorporated male and Publisher Global Training refers to maler and female employees alike This document with all its sections is protected under the laws of copyright I

3、ts use for any purpose whatsoever requires the prior written consent of DaimlerChrysler AG This applies in particular to its reproduction distribution modification translation recording on microfilm or storage andor processing in electronic systems including databases and on-line services 1511 1402

4、02 - 1st Edition 0504 104 As at 0504 Content com Title Page Welcome 1 272 Engine Overview 2 Press Release3 M272 Highlights 4 Technical Details in Comparison7 M272 Engine Mechanics11 Fuel Injection and Ignition System 37 Ignition System 59 Fuel System 62 Air Ducting 69 Air Injection 78 Exhaust System

5、 83 Engine Cooling 89 Coolant Circuit 91 Test Cables and Special Tools 98 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module Content I 1 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module Content I 2 Welcome co

6、m Dear Participant Welcome to trade training Passenger Cars Gasoline Engine M272 In this training document you will find information sheets with whose help you can familiarize yourself with the M272 engine We also give you useful service tips and additional technical information Naturally the inform

7、ation worked on here mirrors the current state of technology Further development or alterations are not followed up by us after this training because you will receive this information with the updated technical documentation We would like to work on the contents of this course with you step by step

8、Good luck Your Engine Team 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module TR Fehler Kein Text mit angegebener Formatvorlage im Dokument Fehl 1 272 Engine Overview com P0100-2479-01 GT00_00_0353_C75 GT00_00_0354_C75 GT00_00_0355_C75 0704 Cars Engine Fu

9、el Injection and Ignition Systems M 272 Advanced Training Information module 272 Engine Overview 2 Press Release com Powerful free-revving economic and quiet Mercedes-Benz present their new six-cylinder engine Stuttgart - Mercedes-Benz has developed a new six-cylinder engine for the future SLK-Class

10、 which with its exemplary power and torque characteristics perfectly suits the sporty-dynamic sports car and guarantees driving pleasure of a very high level Furthermore the new 35 liter four-valve power unit sets standards for fuel consumption and noise comfort with a series of new technical featur

11、es This engine will also be available in all other model series With 200 kW272 bhp power and 350 newton meters torque the new Mercedes six cylinder belongs to the strongest V6 engines in its displacement class The imum torque is available already from 2500min and remains constant in a large rpm rang

12、e up to 5000min This allows powerful acceleration and rapid sprints The aluminium engine distinguishes itself through a unique technology package It contains - for the first time with a V6 engine a variable camshaft adjustment for the intake and exhaust which increases the power and torque and simul

13、taneously helps fuel saving A two-stage intake manifold so-called tumble flaps in the intake ports and an intelligent heat management are further technical highlights of the new six cylinder for the future SLK-Class 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Informa

14、tion module Press Release 3 M272 Highlights com The most important highlights of the new V6-engine Balance shaft Direct ignition system Hot film air flow sensor in new technology HFM 6 Bosch Catalytic converters mounted near the engine Aluminium crankcase Crankshaft forged with four bearings Light-w

15、eight power unit with weight reduced pistons and connecting rods Linear lambda control Air filter in two-cartridge technology with integrated resonators Engine mounted control unit P0100-2486-12 Continuous camshaft adjustment for intake and exhaust camshafts Oil-water heat exchanger Variable intake

16、manifold with longitudinal switch flaps and swirl flaps in the intake ducts Four-valve technology with cam followers and hydraulic valve clearance compensator Heat management with electronic mapped ignition thermostat Cylinder liners of low-friction aluminium-silicon technology 0704 Cars Engine Fuel

17、 Injection and Ignition Systems M 272 Advanced Training Information module M272 Highlights 4 An overview of the most important new features of the engine and their meaning for power torque consumption comfort exhaust Positive effect on Power Torque Consumpti Comfort Exhaust on Variable camshaft adju

18、stment intake side Variable com-12 camshaft adjustment exhaust side Two-stage intake manifold Tumble flaps in the intake ports Heat management Light-weight power unit P0100-2472-01 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module M272 Highlights 5 Legen

19、d 1 Purge line 2 Fuel supply line P0120-2092-06 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module M272 Highlights 6 Technical Details in Comparison com SLK 350 SLK 320 S 350 Model Series 171 Model Series 170 Model Series 220 Engine Cylinder numberarrange

20、ment V6 V6 V6 Displacement cm3 3498 3199 3724 Bore x stroke mm 929 x 860 899 x 840 970 x 840 Rated output kW 200 160 180 1min 6000 5700 5700 Rated torque Nm 350 310 350 1min 2500 - 5000 3000 4600 3000 4500 Compression ratio 107 100 100 Sales designation Cylinder configurationnumberangle V690° V

21、690° V690° Valvesspark plugs per cylinder 4 1 3 2 3 2 Fuel injection and ignition system ME 97 ME 28 ME 28 Air supply Intake engine Intake engine Intake engine Curb weight to EU kg 1450 1405 1810 Permissible gross vehicle weight kg 1780 1665 2340 Tank capacity l 70 60 88 Driving performancefuel consumption Acceleration 0-100 kmh s 64 69 73 imum speed kmh 250 245 246 NEDC total l100 km 106 108 111 0704 Cars Engine Fuel Injection and Ignition Systems M 272 Advanced Training Information module Technical Details in Comparison 7 SLK 350 and its Competitors Mo