Obrist has developed novel systems to recover the energy contained in the exhaust gas of combustion engines. The Exhaust Gas Waste Heat Recovery Systems (EHR) are available with electric and mechanic output units designed for mobile and stationary applications.
Joint research together with manufacturers of large engines and of heavy trucks has demonstrated that the recovery of the exhaust system’s waste heat is the most important lever to improve the energy efficiency and economics of modern turbo-charged Diesel engines in trucks and marine applications.
To partly recover the exhaust system’s waste heat and to transform it into electric or mechanic energy Obrist Engineering has applied its EHR-system to the engines of heavy trucks (class 7 & 8) significantly boosting efficiency and output of turbo-charged engines.
All the EHR key components like the scroll expanders, heat exchangers and pumps were designed with respect to the challenging validation requirements of heavy trucks (class 7 & 8) in Europe and in North America.
The installation of the EHR is facilitated by its compact dimensions and structural modularity of the Obrist scroll expanders. Calibration of the EHR for different vehicle and engine setups is performed by Obrist or by its clients supported by an Obrist software tool.