Green Car Congress: Citroën will showcase its Hybrid Air system (earlier post) at the upcoming Geneva International Motor Show. The system, developed in partnership with Bosch, combines compressed air and hydraulic power to deliver fuel consumption of less than 3 l/100 km (78 mpg US).
...The Hybrid Air powertrain combines a PureTech gasoline engine, a compressed air energy storage unit, a hydraulic pump/motor unit and an automatic transmission with an epicyclic gear train. Eighty patents were filed by the PSA Peugeot Citroën Group during the development process
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