US 12,405,001 B2
Combustor
Hiroyasu Kawauchi, Kariya (JP); Hideaki Suzuki, Kariya (JP); Yoshitaka Takeuchi, Kariya (JP); Ryuichi Murai, Suita (JP); Fumiteru Akamatsu, Suita (JP); and Yu Imahashi, Suita (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP); and OSAKA UNIVERSITY, Suita (JP)
Appl. No. 17/794,650
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP); and OSAKA UNIVERSITY, Suita (JP)
PCT Filed Jan. 13, 2021, PCT No. PCT/JP2021/000841
§ 371(c)(1), (2) Date Jul. 22, 2022,
PCT Pub. No. WO2021/157302, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-018145 (JP), filed on Feb. 5, 2020; and application No. 2020-165666 (JP), filed on Sep. 30, 2020.
Prior Publication US 2023/0086672 A1, Mar. 23, 2023
Int. Cl. F23D 14/02 (2006.01); F23D 14/24 (2006.01); F23Q 3/00 (2006.01); H01T 13/32 (2006.01)
CPC F23D 14/02 (2013.01) [F23D 14/24 (2013.01); F23Q 3/00 (2013.01); H01T 13/32 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A combustor comprising:
a housing having a cylindrical shape of which one end side is open and of which the other end side is closed;
at least one introduction portion that introduces a fuel and an oxidizing gas into the housing to generate a tubular flow; and
an ignition unit that ignites the fuel introduced into the housing,
wherein the ignition unit includes a discharge electrode and a ground electrode, and
a space that the fuel and the oxidizing gas reach is provided between the discharge electrode and the ground electrode,
wherein, a first end of the housing forms an open end of the housing in an axial direction of the housing, and a wall is provided at a second end of the housing that forms a closed end of the housing in the axial direction of the housing,
the housing is grounded to function as the ground electrode,
the ignition unit includes
a discharge electrode terminal, which is disposed at the wall of the closed end of the housing so as to extend inside of the housing, to function as the discharge electrode, and
a voltage supply unit that supplies a voltage to the discharge electrode terminal, to generate a discharge between a tip portion of the discharge electrode terminal and the housing to ignite the fuel,
the introduction portion is provided between the wall of the housing and the center portion of the housing in the axial direction of the housing on the outer peripheral surface of the housing having the cylindrical shape, and
the tip portion of the discharge electrode terminal of the ignition unit is positioned inside the housing between a rear end of the introduction portion and the wall of the closed end of the housing in the axial direction.