US 12,110,848 B2
Intake duct
Kunitaka Maeda, Nagoya (JP)
Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken (JP)
Appl. No. 17/434,928
Filed by TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken (JP)
PCT Filed Nov. 27, 2020, PCT No. PCT/JP2020/044304
§ 371(c)(1), (2) Date Aug. 30, 2021,
PCT Pub. No. WO2021/124840, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 2019-228034 (JP), filed on Dec. 18, 2019.
Prior Publication US 2022/0145835 A1, May 12, 2022
Int. Cl. F02M 35/10 (2006.01)
CPC F02M 35/10124 (2013.01) [F02M 35/10111 (2013.01)] 2 Claims
OG exemplary drawing
 
1. An intake duct, comprising a duct body having a flattened cross-sectional shape, wherein
the duct body includes an upstream opening at one end in a longitudinal direction, and a downstream opening at another end in the longitudinal direction,
the duct body is formed such that a center line of the upstream opening and a center line of the downstream opening are skew to each other,
the duct body includes a twisted and bent portion that connects the upstream opening and the downstream opening to each other,
a cross-section of the duct body at the upstream opening and the downstream opening has a quadrilateral shape flattened such that a length in a width direction is longer than a length in a height direction,
the twisted and bent portion includes a first side section, which is on one side in the height direction,
the twisted and bent portion includes a second side section, which is on another side in the height direction,
the upstream opening and the downstream opening respectively include first sections, which are on a first side in the height direction,
the upstream opening and the downstream opening respectively include second sections, which are on a second side in the height direction, and
the twisted and bent portion is twisted and bent at one site such that
the duct body is bent only at the one site and is not bent at a site other than the one site between the upstream opening and the downstream opening,
the first side section connects the first section of the upstream opening and the second section of the downstream opening to each other, and
the second side section connects the second section of the upstream opening and the first section of the downstream opening to each other.