System and method for delivering a fluid stored in liquefied form to an end user in gaseous form
AssigneeWestport Power Inc.
InventorKevin K. OVERSBY
Life of this patent
Estimating the term…
Abstract
A system and method is disclosed for storing a fluid in a storage vessel in liquefied form and delivering it in gaseous form to an end user through a supply line. The system comprises a pressure relief circuit for returning the fluid from the supply line to the vessel when predetermined conditions are met. The pressure relief circuit comprises a return line connected to the supply line and the storage vessel, a diversion line to divert the fluid elsewhere and a switching device operable to direct the fluid to either one of the lines, as a function of predetermined conditions.
Claims24
A system for delivering a fluid stored in liquefied form to an end user in a gaseous form, the system comprising:
- a storage vessel;
- a supply line in fluid communication with said storage vessel and said end user;
- and
- a pressure relief circuit comprising
- (i) a return line in fluid communication with said supply line and said storage vessel for returning said fluid in gaseous form from said supply line to said storage vessel;
- (ii) a diversion line in fluid communication with said supply line;
- and
- (iii) a switching device operable to direct said fluid in gaseous form from said supply line to said return line when pressure within said supply line is greater than a predetermined threshold pressure and when predetermined conditions are met, and to said diversion line when said pressure within said supply line is lower than said predetermined threshold pressure or said predetermined conditions are not met.
-11. (canceled)
A system for delivering a fluid stored in liquefied form to an end user in a gaseous form, the system comprising:
- a storage vessel;
- a supply line in fluid communication with said storage vessel and said end user;
- a pressure relief circuit comprising a switching device operated by a controller to direct said fluid from said supply line and;
- return said fluid in said gaseous form to said storage vessel through a return line when a parameter of said fluid meets a predetermined condition;
- or
- divert said fluid to a diversion line when said parameter of said fluid does not meet said predetermined condition.
A method comprising:
- storing a fluid in a vessel in liquefied form;
- delivering said fluid in gaseous form through a supply line to an end user;
- reducing fluid pressure in said supply line upon meeting predetermined conditions, by returning fluid in gaseous form from said supply line to said vessel;
- and
- diverting said fluid elsewhere upon not meeting said predetermined conditions.
Dependencies are inferred from the claim text.