Jacobs Vehicle Systems
The Jacobs Engine Brake® is based on the concept of motion transfer. It's a hydraulic/mechanical link from the camshaft's exhaust or injector lobe to the exhaust valve, transferred through a hydraulic ratio to create an additional valve opening. Jacobs Vehicle Systems™ has forty years of experience in hydro-mechanical valve actuation for heavy- duty truck engine braking, combined with a decade of advanced research in electrohydraulics. The synergy of these efforts has enabled our R&D team to develop VVA systems which are valuable in both spark ignition and diesel engines. This experience has also led to the creation of compact, reliable, commercially viable and high performance "lost motion" variable valve actuation systems. In the 80's, Jacobs began experimenting with the concept of "Lost Motion" as a method to optimize engine braking. Lost Motion enables the option of altering the timing of the braking event to maximize braking performance. When compared to other mechanisms for controlling valves, lost motion provides the highest amount of flexibility while maintaining a repeatable, high performance engine braking exhaust valve event for millions of troublefree miles.
The Jacobs Engine Brake® is based on the concept of motion transfer. It's a hydraulic/mechanical link from the camshaft's exhaust or injector lobe to the exhaust valve, transferred through a hydraulic ratio to create an additional valve opening. Jacobs Vehicle Systems™ has forty years of experience in hydro-mechanical valve actuation for heavy- duty truck engine braking, combined with a decade of advanced research in electrohydraulics. The synergy of these efforts has enabled our R&D team to develop VVA systems which are valuable in both spark ignition and diesel engines. This experience has also led to the creation of compact, reliable, commercially viable and high performance "lost motion" variable valve actuation systems. In the 80's, Jacobs began experimenting with the concept of "Lost Motion" as a method to optimize engine braking. Lost Motion enables the option of altering the timing of the braking event to maximize braking performance. When compared to other mechanisms for controlling valves, lost motion provides the highest amount of flexibility while maintaining a repeatable, high performance engine braking exhaust valve event for millions of troublefree miles.
