公开(公告)号：US11345230B2

公开(公告)日：2022-05-31

申请号：US17036423

申请日：2020-09-29

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Keun Soo Kim ,  Jung Hoon Park ,  Dong Hyun Kim ,  Seung Kyun Lee

IPC分类号： B60K15/03 ,  F02D41/06 ,  F02D33/00 ,  F16K15/04

摘要： A valve system of a fuel system for a vehicle may close a jet pump-side flow path when a pressure of fuel supplied from a fuel pump to an engine is lower than a prescribed fuel pressure at engine start-up, and open the jet pump-side flow path when the pressure of fuel is equal to or higher than the prescribed fuel pressure at the engine start-up, thereby improving cold startability of an engine, and may also allow the jet pump-side flow path to be kept in an opened state between a low load region and a high load region of the engine after the engine start-up, thereby smoothly keeping a function of the jet pump after the engine start-up.

公开(公告)号：US20210101472A1

公开(公告)日：2021-04-08

申请号：US17036423

申请日：2020-09-29

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Keun Soo Kim ,  Jung Hoon Park ,  Dong Hyun Kim ,  Seung Kyun Lee

IPC分类号： B60K15/03 ,  F02D41/06 ,  F02D33/00 ,  F16K15/04

摘要： A valve system of a fuel system for a vehicle may close a jet pump-side flow path when a pressure of fuel supplied from a fuel pump to an engine is lower than a prescribed fuel pressure at engine start-up, and open the jet pump-side flow path when the pressure of fuel is equal to or higher than the prescribed fuel pressure at the engine start-up, thereby improving cold startability of an engine, and may also allow the jet pump-side flow path to be kept in an opened state between a low load region and a high load region of the engine after the engine start-up, thereby smoothly keeping a function of the jet pump after the engine start-up.

公开(公告)号：US09982623B2

公开(公告)日：2018-05-29

申请号：US15374824

申请日：2016-12-09

申请人： Hyundai Motor Company

发明人： Keun Soo Kim ,  June Young Park ,  Chang Jun Park ,  Seung Kyun Lee ,  Chang Han Park

IPC分类号： F02D41/00 ,  F02D41/30 ,  F02D41/04 ,  F02M59/34

CPC分类号： F02D41/3082 ,  F02D41/004 ,  F02D41/042 ,  F02M25/0836 ,  F02M25/0872 ,  F02M25/089 ,  F02M37/0082 ,  F02M59/34

摘要： An apparatus and a method for preventing overflow of fuel from a vehicle fuel tank are provided may prevent liquid fuel from overflowing into a canister by for a predetermined time storing liquid fuel, which overflows from a fuel tank through a vent valve while the vehicle is traveling, in a fuel overflow prevention chamber, and by returning the fuel in the fuel overflow prevention chamber to the fuel tank by driving a fuel pump in a reverse direction when an engine is turned off.