Variable compression systems for future engines and fuels / Jean-Pierre Pirault, Philip Dingle, and Martin Flint.

Format:

Book

Author/Creator:

Pirault, Jean-Pierre, author.

Dingle, Philip J. G., author.

Flint, Martin, author.

Contributor:

SAE International (Society), publisher.

Series:

SAE International Mobility, Advanced

Language:

English

Subjects (All):

Internal combustion engines--Design and construction.

Internal combustion engines.

Internal combustion engines--Environmental aspects.

Automobile industry and trade--Design and construction.

Automobile industry and trade.

Physical Description:

1 online resource (1 PDF (xxiv, 576 pages)) : illustrations (chiefly color), charts.

Edition:

1st ed.

Place of Publication:

Warrendale, Pennsylvania : SAE International, [2025]

Summary:

Variable Compression Systems for Future Engines and Fuels explores variable compression ratio (VCR): one of the most promising-and historically elusive-advancements in internal combustion engine (ICE) technology. Long recognized for its thermodynamic benefits, VCR has challenged engineers for decades due to its mechanical complexity. Today, as the global mobility landscape demands ever higher efficiency, lower emissions, and greater fuel flexibility, VCR has emerged as a viable and transformative solution. This book delivers a comprehensive and authoritative examination of VCR technology, quantifying its efficiency and CO2-reduction potential while surveying the wide range of mechanisms conceived, developed, and tested over more than a century of engine innovation. By combining historical insight with modern analysis, the authors reveal the remarkable ingenuity of past and present engine designers-and demonstrate that VCR is not only feasible, but increasingly essential. Positioned squarely within the context of global decarbonization, the book argues for a realistic, inclusive pathway to net-zero emissions-one in which ICEs continue to play a critical role. VCR technology enables higher efficiency across almost all operating conditions, supports advanced combustion strategies, and allows engines to operate effectively on a broad spectrum of low- and zero-carbon fuels, from biofuels to synthetic e-fuels. With VCR now in high-volume production and poised for broader adoption across automotive, heavy-duty, and marine applications, this timely volume is an essential resource for OEMs, suppliers, policymakers, researchers, and students seeking practical, scalable solutions for a sustainable energy future.

Contents:

Chapter 01 : Compression ratios and fuels

Appendix A.1 : Selected VCR patents

Chapter 02 : Compression ratio limits

Chapter 03 : Cylinder head VCR

Chapter 04 : Cylinder block VCR

Chapter 05 : Connecting rod variable compression

Chapter 06 : Piston VCR

Appendix A.6 : Hydraulic VCR response prediction for two-chamber hydraulic piston or connecting rod VCR systems

Chapter 07 : Cranktrain and linkages VCR

Chapter 08 : Modulated crankshaft eccentricity

Chapter 09 : Axial or barrel engine VCRs

Chapter 10 : High power and downsized engines

Appendix A.10 : VCR patent listing for continental aviation and engineering

Chapter 11 : Impact of VCR systems on engines

Appendix A.11 : Empirical estimations of engine cylinder temperatures for naturally aspirated, boosted, and VCR engines

Chapter 12 : VCR applications for the future

Chapter 13 : Variable compression for future engines and fuels

Appendix A.13.1 : Carbon dioxide emission reduction and electrification

Appendix A.13.2 : CO2 emissions from fuels

Appendix A.13.3 : HD engine performance trends for 12-18 : 1 CRs (approx. 50 cetane fossil fuel and DME approx. 55 cetane)

Appendix A.13.4 : HD engine performance trends for 12-18 : 1 CRs (approx. 50 cetane fossil diesel fuel)

Appendix A.13.4 : Zero-dimension calculation of ICE three-stage air charging and tractive effort prediction

Chapter 14 : VCR cost-benefic analysis.

Notes:

Includes bibliographical references and index.

Description based on publisher supplied metadata and other sources.

ISBN:

1-4686-0586-0

1-4686-0585-2

OCLC:

1591762019