公开(公告)号：US11248565B2

公开(公告)日：2022-02-15

申请号：US16532951

申请日：2019-08-06

Applicant: HYUNDAI KEFICO CORPORATION

Inventor： Ahn Hee Lee ,  Du Seok Lee ,  Ji Hyun Lee

IPC: F02M25/08 ,  F16K25/00 ,  F16K31/06 ,  C09D5/00 ,  C09D5/16 ,  C08K3/04 ,  C08K5/00 ,  C08K5/205 ,  C08K5/02 ,  C08K5/29 ,  C08K3/013

Abstract: A purge control solenoid valve includes a gas access body including an evaporation gas inlet, an evaporation gas outlet, and a path that connects the evaporation gas inlet and the evaporation gas outlet; a valve operation body including an armature coupled to the gas access body and performing a reciprocating motion in a direction in which the armature is brought into close contact with or separated from the path by a core that generates a magnetic force; and an armature top member being in close contact with or separated from the path due to the reciprocating motion of the armature to open or close the path. The armature top member has a non-adhesion coating formed on a top surface of a body thereof, and the non-adhesion coating includes a binder, graphite, polytetrafluoroethylene, and a crosslinking agent.

公开(公告)号：US11913566B2

公开(公告)日：2024-02-27

申请号：US17940155

申请日：2022-09-08

Applicant: Hyundai Kefico Corporation

Inventor： Du Seok Lee

IPC: F16K31/06 ,  F16K47/02 ,  F02M25/08

CPC classification number: F16K31/0655 ,  F16K47/02 ,  F02M2025/0845

Abstract: The present disclosure relates to a fuel tank isolation valve of a vehicle, wherein the first armature and the second armature are connected in such a manner that there is no clearance therebetween, and a spring compression amount securing groove is formed on the upper surface of the guide. In a preferred finished valve assembly state, the position of the first armature in a valve-off state can be constant, and the movement of the first armature does not significantly occur, thereby noise, vibration, and wear are inhibited or prevented.

公开(公告)号：US20220196155A1

公开(公告)日：2022-06-23

申请号：US17556566

申请日：2021-12-20

Applicant: HYUNDAI KEFICO CORPORATION

Inventor： Du Seok Lee ,  Ahn Hee Lee ,  Kyung Hwan Kim

IPC: F16K1/54 ,  F16K1/44 ,  B60K15/03

Abstract: A fuel tank isolation valve for a vehicle includes a drive unit having a solenoid coil; a flow path unit having a vaporized fuel gas flow path; a valve assembly configured to open or close the flow path in the flow path unit by being operated by the drive unit, where the valve assembly includes: a first valve configured to open the flow path by being operated by a magnetic force generated by the coil; and a second valve configured to open the flow path while operating in conjunction with the first valve by being caught by the first valve when the first valve operates. The first valve and the second valve may operate in conjunction with each other by being mechanically caught, such that it is not necessary to provide a separate spring for operating the second valve.

公开(公告)号：US20230085374A1

公开(公告)日：2023-03-16

申请号：US17940155

申请日：2022-09-08

Applicant: Hyundai Kefico Corporation

Inventor： Du Seok Lee

IPC: F16K31/06 ,  F16K47/02

Abstract: The present disclosure relates to a fuel tank isolation valve of a vehicle, wherein the first armature and the second armature are connected in such a manner that there is no clearance therebetween, and a spring compression amount securing groove is formed on the upper surface of the guide. In a preferred finished valve assembly state, the position of the first armature in a valve-off state can be constant, and the movement of the first armature does not significantly occur, thereby noise, vibration, and wear are inhibited or prevented.

公开(公告)号：US20200049107A1

公开(公告)日：2020-02-13

申请号：US16532951

申请日：2019-08-06

Applicant: HYUNDAI KEFICO CORPORATION

Inventor： Ahn Hee Lee ,  Du Seok Lee ,  Ji Hyun Lee

IPC: F02M25/08 ,  F16K25/00 ,  F16K31/06 ,  C09D5/16 ,  C08K3/04 ,  C08K3/013 ,  C08K5/00 ,  C08K5/205 ,  C08K5/02 ,  C08K5/29

Abstract: A purge control solenoid valve includes a gas access body including an evaporation gas inlet, an evaporation gas outlet, and a path that connects the evaporation gas inlet and the evaporation gas outlet; a valve operation body including an armature coupled to the gas access body and performing a reciprocating motion in a direction in which the armature is brought into close contact with or separated from the path by a core that generates a magnetic force; and an armature top member being in close contact with or separated from the path due to the reciprocating motion of the armature to open or close the path. The armature top member has a non-adhesion coating formed on a top surface of a body thereof, and the non-adhesion coating includes a binder, graphite, polytetrafluoroethylene, and a crosslinking agent.