BLOOMFIELD, CT, USA – Jacobs Vehicle Systems will showcase its latest portfolio of engine retarding and valve actuation technologies at IAA Transportation in Hannover, September 20-25, 2022 (Hall 22, Booth C11). The focus will be on Jacobs’ cylinder deactivation technology and its modular valvetrain concepts.
Engine braking and cylinder deactivation technologies are key levers to help the commercial vehicle industry meet upcoming global emission standards. Jacobs is well-known for its engine braking technologies – including the Jake Brake® and High Power Density® (HPD®) engine brake – but it is also developing new and effective valve control technologies. Seamlessly integrated into the valvetrain using technically proven and cost-effective solutions, Jacobs’ modular valvetrain concepts enhance engine performance while reducing emissions and improving the fuel economy of commercial vehicles using both conventional and alternative fuels.
Jacobs’ technologies lower CO2 and NOx simultaneously
Jacobs Cylinder Deactivation (CDA) can turn a six-cylinder engine into a three-cylinder engine or less, decreasing fuel consumption and keeping the aftertreatment system hot. Even when the engine is running at low loads, aftertreatment temperatures are maintained. CDA improves fuel economy because of the increased load on the cylinders that are still operating, while their switched-off counterparts are not fueled at all. Additionally, the system is designed to last the lifetime of the engine, unlike other emission technologies that need to be replaced or serviced.
To further enhance cylinder deactivation, Jacobs and Tula Technology Inc., a mobility controls specialist that has been collaborating with Jacobs since 2019, are teaming up as co-exhibitors at IAA Transportation. Tula’s dynamic skip fire (DSF) technology combined with Jacobs’ CDA means decisions about which cylinders to deactivate are made on an individual basis, and every engine rotation, to best meet torque demands and eliminate vibration.
Modular technologies by Jacobs – easy integration and future-proof
Although Jacobs’ product portfolio contains different valve actuation technologies to serve various purposes, many of these are modular and compatible with each other. This gives OEMs the flexibility to specify one of Jacobs’ technologies individually, or multiple technologies working together, to meet the OEM’s needs.
One example is Jacobs’ High Power Density engine braking technology. If the engine’s valvetrain already includes the HPD rocker brake, it is possible to also incorporate CDA. HPD is modular to a standard compression release rocker brake as well; customers can choose between the two while making use of the same base hardware. It’s also an option to add Variable Valve Actuation technologies that assist in meeting upcoming transient emissions and fuel economy targets.
Jacobs’ modularity also gives OEMs the freedom to specify engines according to regional market demands and emissions regulations, and helps them to future-proof their engine platforms. If the engine’s valvetrain already incorporates one Jacobs technology, there’s the potential to add another later for the period the engine is in-production. This can be done without having to make large hardware alterations outside of the valve bridges.
Concentrated expertise
Jacobs’ technical experts will be available at the company’s booth (Hall 22, Stand C11) to explain and discuss the company’s full range of technologies, not only for engine braking but also for enhancing engine performance, reducing emissions and improving fuel economy.
Image – Jacobs Cylinder Deactivation (CDA) can turn a six-cylinder engine into a three-cylinder engine or less, decreasing fuel consumption and keeping the aftertreatment system hot.
Image – Jacobs Cylinder Deactivation (CDA) can turn a six-cylinder engine into a three-cylinder engine or less, decreasing fuel consumption and keeping the aftertreatment system hot.
Image – Jacobs Cylinder Deactivation (CDA) can turn a six-cylinder engine into a three-cylinder engine or less, decreasing fuel consumption and keeping the aftertreatment system hot.
About Jacobs Vehicle Systems
Jacobs Vehicle Systems is headquartered in Bloomfield, Conn., where it has a 25,000 square meter design, testing, and manufacturing facility, with support sites in Europe, Japan, and India as well as manufacturing facilities in Suzhou, China, and Brno, Czech Republic. Jake Brake® products are used by heavy and medium-duty diesel engine manufacturers globally. Registered to the ISO 14001 and IATF16949 standards, Jacobs Vehicle Systems is a leading producer of vehicle retarding and valve actuation technologies and can be found at jakebrake.com.