US 11,788,494 B2
System for supplying a gaseous fuel
Bouzid Seba, Broc (CH); and Ulrich Weiss, Villars-sur-Glane (CH)
Assigned to LIEBHERR MACHINES BULLE SA, Bulle (CH)
Filed by Liebherr Machines Bulle SA, Bulle (CH)
Filed on May 28, 2021, as Appl. No. 17/334,559.
Claims priority of application No. 00638/20 (CH), filed on May 28, 2020.
Prior Publication US 2021/0372350 A1, Dec. 2, 2021
Int. Cl. F02M 21/02 (2006.01)
CPC F02M 21/0245 (2013.01) [F02M 21/0221 (2013.01); F02M 21/0239 (2013.01); F02M 21/0287 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for supplying a gaseous fuel, comprising:
a tank that is designed as a liquid gas tank for receiving fuel in its liquid aggregate state achieved by cooling;
a rail that is fluidically connected to at least one injector device for discharging the gaseous fuel into a fuel space, wherein
a pressure store that is configured to receive the gaseous fuel and that is fluidically connectable to both the tank and the rail to buffer fuel coming from the tank and to supply it to the rail; and
a boil-off valve in fluid communication with the tank for discharging the gaseous fuel from the tank, wherein
a compressor is arranged downstream of the boil-off valve to increase pressure of the gaseous fuel discharged via the boil-off valve, with an upper pressure side of the compressor being fluidically connected to the pressure store to supply the gaseous fuel increased in pressure to the pressure store, and wherein
the rail is fluidically connectable to a suction side of the compressor to supply gaseous fuel not required in the rail to the pressure store.