US 12,252,161 B2
Combined-propulsion system and method for high-speed land vehicles, in a forced vacuum
Federico Lluesma Rodríguez, Valencia (ES); Daniel Orient Martin, Valencia (ES); David Pistoni Pérez, Valencia (ES); Alberto Sánchez Jiménez, Valencia (ES); and Juan Vicén Balaguer, Valencia (ES)
Assigned to ZELEROS GLOBAL, S.L., Valencia (ES)
Appl. No. 17/792,256
Filed by ZELEROS GLOBAL, S.L., Valencia (ES)
PCT Filed Dec. 18, 2020, PCT No. PCT/ES2020/070805
§ 371(c)(1), (2) Date Jul. 12, 2022,
PCT Pub. No. WO2021/144483, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. ES202030013 (ES), filed on Jan. 13, 2020.
Prior Publication US 2023/0044128 A1, Feb. 9, 2023
Int. Cl. B61B 13/10 (2006.01); B60L 13/10 (2006.01); B61B 13/08 (2006.01)
CPC B61B 13/10 (2013.01) [B60L 13/10 (2013.01); B61B 13/08 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A combined propulsion system for high-speed vehicles, in a forced vacuum, comprising:
a closed tubular guiding structure;
a vehicle configured to move inside the tubular structure;
at least one vacuum pump coupled to the closed tubular structure configured to provide a low-pressure atmosphere inside the structure, wherein the low pressure provided by the at least one vacuum pump, is in a range between 65 mbar and 250 mbar;
electric propulsion means of the linear motor type arranged in an initial section of the structure, with a length relative to the tubular structure comprised between 15% and 1%, configured to provide an initial acceleration to the vehicle up to a first predetermined speed; and
compressed-air propulsion means arranged on the vehicle, configured to provide an additional acceleration to the vehicle up to a second predetermined speed and, once the second predetermined speed is reached, maintain the second predetermined speed constant,
wherein the compressed-air propulsion means are further configured to provide a regulation propulsion to the vehicle that takes the vehicle from the second predetermined speed to a third speed, and
wherein the third speed represents a set of speed values defined in a predetermined speed map for the route that the vehicle will use as a reference.