A liquefied light hydrocarbon (LLH) fuel system for a hybrid electric vehicle is disclosed. The fuel system uses a stable supply of vaporized (LLH) fuel to meet the highly variable power demand from the vehicle's power train by 1) adjusting the evaporation rate inside an insulated fuel tank through a heat delivery system, 2) managing the amount of compressed fuel vapor stored inside a buffer tank and 3) using an electric energy storage means to provide for rapid fluctuations in demand. In an embodiment the apparatus comprises an insulated fuel tank, a buffer tank, a heat delivery system, an energy conversion means to convert the vaporized fuel into electricity and an electric energy storage means that can provide for rapid variations of power demand from the vehicle. Methods of using the fuel system under various operational scenarios are also disclosed.
Liquified light hydrocarbon fuel system for a hybrid electric vehicle
2019-02-26
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung |
FLOATING-TYPE LIQUIFIED HYDROCARBON GAS PLANT MANUFACTURING METHOD
European Patent Office | 2018
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