Powerplant and related control system and method

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 6/00 (2007.10)

Patent

CA 2739492

A hydrogen fueled powerplant including an internal combustion engine that drives a motor-generator, and has a two-stage turbocharger, for an aircraft. A control system controls the operation of the motor-generator to maintain the engine at a speed selected based on controlling the engine equivalence ratio. The control system controls an after- burner, an intercooler and an aftercooler to maximize powerplant efficiency. The afterburner also adds power to the turbochargers during high-altitude restarts. The turbochargers also include motor-generators that extract excess power from the exhaust.

Linvention concerne une installation motrice alimentée à lhydrogène comprenant un moteur à combustion interne qui entraîne un moteur-générateur, et possédant un turbocompresseur à deux étages, destinée à un avion. Un système de commande sert à commander le fonctionnement du moteur-générateur afin de maintenir le moteur à une vitesse sélectionnée sur la base de la commande du rapport déquivalence du moteur. Le système de commande permet de commander un brûleur postcombustion, un refroidisseur intermédiaire et un refroidisseur final afin de maximiser lefficacité de linstallation motrice. Le brûleur postcombustion permet également dajouter de la puissance aux turbocompresseurs lors des remises en marche à haute altitude. Les turbocompresseurs comprennent aussi des moteurs-générateurs permettant dextraire la puissance excédentaire provenant de léchappement.

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