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PT-122
Variable Valvetrain System Technology
Robert J. Moran, March 2006, 328 Pages, 27 Papers, Paperbound
$120.00

This combination of 28 papers covers a decade of technical information reviewing the wide-range of approaches to Variable Valve Actuation (VVA). Each approach has unique benefits and a range of applications. These papers present a balanced view of the progress and challenges associated with VVA technology.

Fuel economy and reduced emissions continue to be large factors in engine technology. Therefore the continued development of VVA will become necessary on virtually all gasoline engines, and must be adopted on diesel engines. The benefits achieved with the applications of this technology include: fuel economy, reduced emissions, improved power, performance, reliability and durability.

Topics include:

  • Engine Cycles with VVA
  • Cam Phasing Systems
  • Profile Switching and Lost Motion Systems
  • Cylinder Deactivation
  • Mechanical Variable Valvetrain Systems
  • Camless Valve Actuation

Papers in: PT-122

  • 1999-01-0329 The Meta Vvh System - The Advantages of Continuously Mechanical Variable Valve Timing
  • 2000-01-1221 Design and Development of a Mechanical Variable Valve Actuation System
  • 2000-01-1222 Variation of Both Symmetric and Asymmetric Valve Events on a 4-Valve SI Engine and the Effects on Emissions and Fuel Economy
  • 2000-01-1223 Benefits of the Electromechanical Valve Train in Vehicle Operation
  • 2000-01-1227 The Third Generation of Valvetrains-New Fully Variable Valvetrains for Throttle-Free Load Control
  • 2000-01-1229 The Application of Variable Event Valve Timing to a Modern Diesel Engine
  • 2001-01-0243 A Study of a Continuous Variable Valve Event and Lift (Vel) System
  • 2001-01-0245 Variocam Plus-A Highlight of the Porsche 911 Turbo Engine
  • 2001-01-0668 Efficient Layout and Calibration of Variable Valve Trains
  • 2001-01-0669 Characterization of the Dynamic Response of a Cylinder Deactivation Valvetrain System
  • 2002-01-0236 Intelligent Simplification - Ways Towards Improved Fuel Economy
  • 2002-01-0422 Variable Valve Actuated Controlled Auto-Ignition: Speed Load Maps and Strategic Regimes of Operation
  • 2002-01-0706 Synergies of Variable Valve Actuation and Direct Injection
  • 2002-01-1109 Production Electro-Hydraulic Variable Valve-Train for a New Generation of I.C. Engines
  • 2003-01-0020 Vvt+Port Deactivation Application on a Small Displacement Si 4 Cylinder 16v Engine: An Effective Way to Reduce Vehicle Fuel Consumption
  • 2003-01-0023 Cam Phaser Actuation Rate Performance Impact on Fuel Consumption and Nox Emissions Over the Ftp-75 Drive Cycle
  • 2003-01-0922 The Next-Generation Northstar Dohc 4.6l V8 Engine With Four-Cam Continuously Variable Valve Timing for Cadillac
  • 2004-01-1265 Design and Control of a Two-Stage, Electro-Hydraulic Valve Actuation System
  • 2004-01-2106 Design and Development of the Daimlerchrysler 5.7l HemiSr Engine Multi-Displacement Cylinder Deactivation System
  • 2004-01-3018 An Electro-Hydraulic "Lost Motion" Vva System for a 3.0-Liter Diesel Engine
  • 2004-01-3058 Effect of Exhaust Valve Timing on Gasoline Engine Performance and Hydrocarbon Emissions
  • 2005-01-0764 A Camshaft Torque Actuated Vane Style (VCT) Phaser
  • 2005-01-0766 Cam Profile Switching (CPS) and Phasing Strategy vs Fully Variable Valve Train (FVVT) Strategy for Transitions between Spark Ignition and Controlled Auto Ignition Modes
  • 2005-01-0774 The Electro-Hydraulic Valvetrain System EHVS - System and Potential
  • 960581 Camless Engine
  • 970916 Honda 3.0 Liter, New V6 Engine
  • 980889 First and Second Law Analyses of a Naturally Aspirated, Miller Cycle, SI Engine With Late Intake Valve Closure