A gearbox hydraulic circuit is disclosed. The gearbox hydraulic circuit comprises a hydraulic pump (12) connected to a fluid reservoir (14) to generate a flow of pressurised fluid. A pressure circuit (16) is connected to the hydraulic pump to convey the fl...

An engine boosting system comprising an engine (11) having an intake manifold (12), an exhaust manifold (13), and an exhaust gas recirculation loop (17) therebetween, a storage vessel (23) in fluid communication with the intake manifold (12) and the exhaus...