Volvo Mack Paccar Caterpillar Cat Cummins Detroit Diesel Engine Fuel System Manual

1 Air compressor gear Servo pump idler gear Servo pump gear Oil pump gear Crankshaft gear Camshaft gear Camshaft idler gear REPTO gear Lower idler gear (outer and inner) LUBRICATION SYSTEM VALVE ARRANGEMENT MAIN LUBRICATION SYSTEM COMPONENTS A. Reducing valve B. Safety valve C. Thermostat valve for oil D. Overflow valve for full flow filter E. Opening valve for piston cooling F. Piston cooling control valve 1. Oil pan pickup strainer 2. Pickup tube 3. Lubricating oil pump 4. Pressure pipe 5. Oil cooler 6. Filter housing 7. Full flow oil filters 8. Main lubrication galley 9. Crankcase ventilation separator turbine 10. Air compressor 11. VGT 12. Bypass filter 13. Nozzles to spray pistons Vertical Back of Cab Catalyzed DPF Rear Geartrain MP8 Oil Flow Schematic © Mack Trucks, Inc. FIGURE C–1 DPF, rear geartrain, and lube circuit on a Mack Trucks MP8 engine. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

2 FIGURE C–2 Bearing failure analysis. Bearing structure Sliding contact stress fatigue caused by normal, high mileage wear Misaligned loading: wear occurs on opposite sides Thermal growth (overheating) of aluminum layer causes bond separation High mileage, normal wear: wear in high load areas with some cavitation High mileage wear: lead-tin bond weakens in high load area C2-1 C2-3 C2-5 C2-2 C2-4 C2-6 © Reprinted Courtesy of Caterpillar Inc. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

3 Value terminology Stress during combustion Cupping or dishing: also caused by overheating Valve leakage effects caused by ash and carbon build-up valve face Thermal cracks caused by overheating Valve closing stress points C3-1 C3-3 C3-5 C3-2 C3-4 C3-6 © Reprinted Courtesy of Caterpillar Inc. FIGURE C–3 Valve failure analysis. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

4 FIGURE C–4 Variable nozzle turbocharger operation. Piston ring Piston ring seals Control valve Cam gear Vanes Turbine wheel Bushing Crank seal Crankshaft Pin Unison ring © Reprinted Courtesy of Caterpillar Inc. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

5 © Illustration courtesy of Scania To engine intake circuit Engine exhaust gas Fluid coupling To exhaust after treatment circuit Torque assist to engine crankshaft FIGURE C5–2 Holset Turbocompounding. © Illustration courtesy of Scania FIGURE C5–1 Location of turbo-compound circuit on a typical engine. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

6 © Cengage Learning 2013 FIGURE C6–1 The heart of the ampliﬁed common rail fuel system used on Detroit Diesel’s DD15 engine. © Cengage Learning 2013 FIGURE C6–2 The unique compounded turbocharger used on the DD15 in which turboboost is harnessed to impart drive torque to the engine by means of its geartrain. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

7 FIGURE C–7 Caterpillar ACERT on post-2007, C13 engine. OCV filter Intake valve actuation CGI mixing valve CGI venturi Series turbochargers High pressure injection system Diesel particulate filter T C T C ATAAC CGI cooler CRS system Plate type oil cooler CGI connection CGI cooler Charge air cooler connection Dual oil filters © Reprinted Courtesy of Caterpillar Inc. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

8 FIGURE C8–1 A basic handheld EST, the Blue-Point ™ POCKET iQ showing some of the data it can scan. © Snap-on Inc./NEXIQ Technologies brand FIGURE C8–2 More advanced generic J-Pro Fleet Diagnostics PC software screen (center of image) showing some of the ﬁelds it is capable of displaying. © Courtesy of Noregon Systems Inc Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

Volvo Mack Paccar Caterpillar Cat Cummins Detroit Diesel Engine Fuel System Manual

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