F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
F02B 43/00 (2006.01) B60K 15/01 (2006.01) F17C 3/00 (2006.01) F17C 7/00 (2006.01) F25B 29/00 (2006.01)
Patent
CA 2468163
Fuel Storage and delivery systems for compressed natural gas are provided that are constructed from ultra-high strength, low alloy steels containing less than 2.5 wt% nickel and having a tensile strength greater than 900 MPa (130 ksi). A primary benefit is that systems of this invention have substantially lower weight than that of currently available steel-based systems. Consequently, the fuel efficiency of a CNG vehicle can be improved due to the lower weight of the system of this invention, or the driving range of the CNG vehicle can be improved by increased fuel storage for the same volume at an elevated pressure, or the load-carrying capacity of the CNG vehicle can be improved. Another primary benefit is that systems of this invention have a cost per unit strength substantially lower than that of currently available systems.
La présente invention concerne des systèmes de stockage et de débit de carburant pour le gaz naturel comprimé, construits en aciers faiblement alliés, ultra-résistants, le nickel représentant moins de 2,5 % de leur masse. La résistance à la traction de cet acier est supérieure à 900 MPa (130 ksi). L'avantage principal de tels systèmes est leur notable légèreté relative par rapport aux systèmes existants à base d'acier. Cette moindre masse confère aux véhicules au gaz naturel comprimé un meilleur rendement. Cela se retrouve soit dans une autonomie plus grande du fait de la plus grande quantité d'emport des réservoirs à pression élevée, soit dans un accroissement la charge marchande. Un autre avantage du système de l'invention est une réduction considérable du coût de revient par unité de puissance par rapport aux systèmes existants.
Bowen Ronald R.
Minta Moses
Borden Ladner Gervais Llp
Exxonmobil Upstream Research Company
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