Abstract: A hydrogen fueling system for vehicles includes a hydrogen storage tank holding liquid hydrogen, 400 to 500 bar storage systems for compressed hydrogen, and hydrogen dispensers providing fuel to vehicles. A pump circulates hydrogen from the storage tank through a heat conditioning system to the dispenser at a desired fueling temperature. A control system manages pump flow through the dispenser supply system, precooling the dispensers and supplementing flow from storage when fueling vehicles with onboard storage exceeding 250 liters. This system efficiently delivers hydrogen fuel to vehicles, ensuring optimal fueling conditions and accommodating varying storage capacities.

Abstract: An apparatus for energy replenishment, fueling for non-hydrocarbon fueled vehicles includes a reconfigurable display comprising a matrix graphically representing and communicating locations and energy type or refueling status of a plurality of energy dispensers for non-hydrocarbon fueled vehicles. A method of scheduling availability of a plurality of energy dispensers in a refueling station forecourt for non-hydrocarbon fueled vehicles includes providing the reconfigurable display to help vehicle operators choose a location that improves traffic flow and reduce congestion within the forecourt. The reconfigurable display may indicate that a first energy dispenser in the plurality of energy dispensers is unavailable until a second energy dispenser in the plurality of energy dispensers immediately forward of the first energy dispenser is occupied.

Abstract: The invention relates to a cooling system (10) for fuel cell stacks (22, 26), comprising a first cooling module (14) and a second cooling module (18). The first cooling module (14) comprises a fuel cell stack (22, 26), a supply line connection (30, 34) for connecting a supply line (38, 42) for supplying coolant to the fuel cell stack (22, 26), a discharge line connection (46, 50) for connecting a discharge line (54, 58) for discharging coolant from the fuel cell stack (22, 26), and a venting line connection (94, 98) for connecting a venting line (102, 106).

Abstract: The invention relates to a method for operating a fuel cell system (10) using a first operating mode, in which, when all of the fuel cell stacks (22, 26) are inactive, one fuel cell stack (22) is pre-heated using a coolant that is pre-heated by means of an electric heater (42) while bypassing all cooler circuits (58) of the active coolant circuits (14) via bypass lines (64) and the one pre-heated fuel cell stack (22) is activated in order to pre-heat an additional fuel cell stack (26) of the fuel cell system. Other operating modes for operating a fuel cell system are disclosed in additional embodiments.

Abstract: The invention relates to a cooling system (10) for fuel cell stacks (22, 26), comprising a first cooling module (14) and a second cooling module (18). The first cooling module (14) comprises a fuel cell stack (22, 26), a supply line connection (30, 34) for connecting a supply line (38, 42) for supplying coolant to the fuel cell stack (22, 26), a discharge line connection (46, 50) for connecting a discharge line (54, 58) for discharging coolant from the fuel cell stack (22, 26), and a venting line connection (94, 98) for connecting a venting line (102, 106).

Abstract: The invention relates to a cooling system (10) for fuel cell stacks (22, 26), comprising a first cooling module (14) and a second cooling module (18). The first cooling module (14) comprises a fuel cell stack (22, 26), a supply line connection (30, 34) for connecting a supply line (38, 42) for supplying coolant to the fuel cell stack (22, 26), a discharge line connection (46, 50) for connecting a discharge line (54, 58) for discharging coolant from the fuel cell stack (22, 26), and a venting line connection (94, 98) for connecting a venting line (102, 106).

Abstract: The invention relates to a method for operating a fuel cell system (10) using a first operating mode, in which, when all of the fuel cell stacks (22, 26) are inactive, one fuel cell stack (22) is pre-heated using a coolant that is pre-heated by means of an electric heater (42) while bypassing all cooler circuits (58) of the active coolant circuits (14) via bypass lines (64) and the one pre-heated fuel cell stack (22) is activated in order to pre-heat an additional fuel cell stack (26) of the fuel cell system. Other operating modes for operating a fuel cell system are disclosed in additional embodiments.

Abstract: The invention relates to a cooling system (10) for fuel cell stacks (22, 26), comprising a first cooling module (14) and a second cooling module (18). The first cooling module (14) comprises a fuel cell stack (22, 26), a supply line connection (30, 34) for connecting a supply line (38, 42) for supplying coolant to the fuel cell stack (22, 26), a discharge line connection (46, 50) for connecting a discharge line (54, 58) for discharging coolant from the fuel cell stack (22, 26), and a venting line connection (94, 98) for connecting a venting line (102, 106).

Abstract: An activation indicator for a pressure and temperature relief device includes a frangible container containing a fire-extinguishing powder. The fire-extinguishing powder serves the purpose of extinguishing or preventing ignition of flammable gases released by the relief device. The powder further provides a visual and odorous indication that there has been a release of gases through the inclusion of indelible dyes, which is particularly useful in systems that use invisible, odorless gases such as hydrogen or natural gas. The frangible container is preferably a fabric pouch protected from mechanical damage and impervious to moisture to prevent premature release or contamination of the powder. The pouch is fluidly connected to the relief device so that the flow and pressure of escaping gas causes the pouch to rupture, releasing the powder to extinguish or prevent a fire in the escaping gas and to provide an indication of a release event to an observer.