Whereas a conventional engine brake has one compression release and one brake gas recirculation event per cam rotation, the Jacobs HPD Engine Brake’s innovative and patented two-stroke technology achieves two braking events per cam rotation.

Low resolution

Medium resolution

Original resolution

About Us

Propel Technology provides PR and marketing for engineering, energy and science sector companies, specialising in raising awareness of complex technologies and initiatives. We produce and deliver intelligent communications across traditional, digital and social channels to allow companies to focus on what they do best.