US 11,679,667 B2
Refueling port
Kazushige Sakazaki, Aichi (JP); Makoto Shimojo, Aichi (JP); Eunjin Park, Aichi (JP); and Takayuki Kobayashi, Aichi (JP)
Assigned to Sumitomo Riko Company Limited, Aichi (JP)
Filed by Sumitomo Riko Company Limited, Aichi (JP)
Filed on May 9, 2022, as Appl. No. 17/739,165.
Claims priority of application No. JP2021-089215 (JP), filed on May 27, 2021.
Prior Publication US 2022/0379720 A1, Dec. 1, 2022
Int. Cl. B60K 15/04 (2006.01); B60K 15/035 (2006.01); B60K 15/03 (2006.01)
CPC B60K 15/04 (2013.01) [B60K 15/035 (2013.01); B60K 2015/03328 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A refueling port, comprising:
a refueling port body which is formed for inserting a nozzle of a refueling gun and to which a filler pipe is connected; and
a nozzle guide which is cylindrical and arranged inside the refueling port body for guiding the nozzle,
wherein the refueling port body comprises a body cylinder portion that is formed in a cylindrical shape and has a nozzle insertion port which is located at one end for inserting the nozzle, a filler pipe connection port which is located at the other end and connected to the filler pipe, and a reflux port which is folioed on a peripheral surface and into which fuel vapor recirculated via a breather pipe flows,
the nozzle guide comprises:
a guide cylinder portion which is formed in a cylindrical shape and arranged with an outer peripheral surface facing the reflux port inside the body cylinder portion; and
a backflow suppression portion which is formed to protrude outward in a radial direction from the outer peripheral surface of the guide cylinder portion and extend in a circumferential direction of the guide cylinder portion and is in contact with a position on an inner peripheral surface of the body cylinder portion on a nozzle insertion port side with respect to the reflux port,
wherein one of the refueling port body and the nozzle guide comprises a pair of guide ribs which are formed between the inner peripheral surface of the body cylinder portion and the outer peripheral surface of the guide cylinder portion to sandwich the reflux port in the circumferential direction and guides the fuel vapor flowing in from the reflux port in a direction toward the filler pipe connection port, and
the other one of the refueling port body and the nozzle guide comprises a pair of locking ribs or a pair of locking grooves, which are formed between the inner peripheral surface of the body cylinder portion and the outer peripheral surface of the guide cylinder portion and are locked in both directions in the circumferential direction to the pair of guide ribs to restrict relative rotation between the refueling port body and the nozzle guide.