JACOBS EVOLVE VVA CAN OPTIMIZE YOUR ENTIRE PLATFORM

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JACOBS EVOLVE VVA CANOPTIMIZE YOUR ENTIRE
PLATFORM

• Variable Valve Actuation allows real-time
  adjustments to valve openings and closing,
  maintaining precise control of valve motion.
• By creating a hydraulic link between the cam and
  the valve, VVA precisely tunes the engine across
  its operating range.
• VVA also enables the engine to utilize
  Homogeneous Charge Combustion Ignition (HCCI),
  with its potential to both lower emissions and
  reduced after-treatment system complexity.

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JACOBS EVOLVE VVA
JACOBS EVOLVE VVA ENABLES LOWER
EMISSIONS OPTIMIZED FUEL CONSUMPTION EXHAUST GAS
TEMPERATURE CONTROL INCREASED LOW-SPEED
TORQUE IMPROVED TRANSIENT RESPONSE INDIVIDUAL
CYLINDER CONTROL HCCI CAPABILITY
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VALVE MOTION
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VALVE MOTION
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VALVE MOTION
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EARLY EXHAUST VALVE OPENING LATE INTAKE VALVE
ENDINGAVAILABLE 2010
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2010 EARLY EXHAUST VALVE OPENING LATE INTAKE
VALVE ENDING
LOWER EMISSIONS OPTIMIZED FUEL CONSUMPTION EXHAUST
GAS TEMPERATURE CONTROL INCREASED LOW-SPEED
TORQUE IMPROVED TRANSIENT RESPONSE
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2010 EARLY EXHAUST VALVE OPENING LATE INTAKE
VALVE ENDING
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2010 EARLY EXHAUST VALVE OPENING LATE INTAKE
VALVE ENDING
The 2010 VVA subsystem brings greater control to
your overall emissions package with the
capability to adjust valve motion, cycle-to-cycle
and cylinder-to-cylinder. While providing these
benefits, VVA operates with a low-risk default to
mechanical mode. Since Jacobs VVA only runs when
you need it, you can determine the path to
optimum performance.
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2012 AND BEYOND
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2012 AND BEYOND
Evolve is the next step in valve motion
flexibility. The system enables HCCI by early
intake closure, modifying the effective
compression ratio. As you move beyond 2012, our
VVA platform evolves with you to meet new
emissions standards. VVA enables engineers to
balance trade-offs between fuel economy and
emissions. It all starts with the most powerful
engine brake ever developed.
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2012 AND BEYOND
LOWER EMISSIONS OPTIMIZED FUEL CONSUMPTION EXHAUST
GAS TEMPERATURE CONTROL INCREASED LOW-SPEED
TORQUE IMPROVED TRANSIENT RESPONSE
PLUS
IMPROVED STARTABILITY HCCI CAPABIILITY INTEGRATED
ENGINE BRAKING
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2012 AND BEYOND
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2012 AND BEYOND
Early Exhaust Valve Opening
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2012 AND BEYOND
Early Intake Valve Closing
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2012 AND BEYOND
Modify Overlap
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2012 AND BEYOND
Auxiliary Events
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2012 AND BEYOND

Cylinder Cut-out
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VVA OVERVIEW
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VVA OVERVIEW

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VVA COMPONENTS
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VVA INSTALLED
This is an example of the surprisingly compact
VVA system installed on the engine head. Jacobs
VVA hardware has been running on engines for
over a decade.
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JACOBS EVOLVE VVA GLOBAL DEVELOPMENT
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TESTIMONIAL

JVS has leveraged its dominance in engine braking
technology to lead the industry in developing
VVA. By 2015, we expect half of the US to
implement VVA, with Europe following suit. Jacobs
obviously is the leader in making these
next-generation plans a reality.

Michael Schittler Industry Consultant Former
Vice President, Development Engines, Powertrain
Business, Daimler ChryslerandMichael Brands
Industry Consultant Former Executive Engineer,
Heavy Duty Engineering, CumminsDuring Joint
Technical Council, May 2006
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LEARN MORE
Jacobs Evolve VVA helps you achieve tomorrows
emissions standards with a simple solution that
opens the door for optimized fuel consumption,
improved transient response and individual
cylinder control. Call 1.800.269.6562 ext. 7671
to learn more.www.jakebrake.com