公开(公告)号：US11267334B2

公开(公告)日：2022-03-08

申请号：US16865240

申请日：2020-05-01

Applicant: Eaton Intelligent Power Limited

Inventor： Jeffrey B. Smith ,  Vaughn K. Mills ,  Daniel Pifer ,  Nikhil Nahar ,  Steven Ambrose ,  Max Franklin

IPC: B60K15/035 ,  B60K15/03 ,  F02M25/08

Abstract: A method for operating an evaporative emissions control system for use with a fuel tank that stores and delivers fuel to an internal combustion engine is provided. A vent shut-off assembly is provided that selectively opens and closes at least one valve to provide overpressure and vacuum relief for the fuel tank. The vent shut-off assembly selectively vents to a purge canister. The at least one valve is closed whereby vapor is precluded from passing from the fuel tank to the purge canister. A purge event is performed wherein dedicated fresh air is drawn into the purge canister and delivered from the purge canister to the engine.

公开(公告)号：US11007868B2

公开(公告)日：2021-05-18

申请号：US16888664

申请日：2020-05-30

Applicant: Eaton Intelligent Power Limited

Inventor： Steven L. Ambrose ,  Jeffrey B. Smith ,  Raymond Bruce McLauchlan

IPC: F16K11/00 ,  B60K15/035 ,  F16K17/30 ,  F02M25/08 ,  F16K15/04 ,  F16K39/02

Abstract: A valve assembly for a fuel tank system including a fuel tank having a fuel tank outlet and a purge canister includes a main valve and a safety check valve. The main valve can be configured to move from a closed position to an open position. The main valve can have a main valve first port fluidly coupled to the outlet of the fuel tank and a main valve second port fluidly connected to the purge canister. The safety check valve can be configured to move from an open position to a closed position upon a pressure drop at the fuel tank outlet exceeding a predetermined threshold. The safety check valve can have a safety check valve first port fluidly coupled to the outlet of the fuel tank and a safety check valve second port fluidly coupled to the purge canister.

公开(公告)号：US20200290454A1

公开(公告)日：2020-09-17

申请号：US16888664

申请日：2020-05-30

Applicant: Eaton Intelligent Power Limited

Inventor： Steven L. Ambrose ,  Jeffrey B. Smith ,  Raymond Bruce McLauchlan

IPC: B60K15/035 ,  F16K17/30 ,  F02M25/08 ,  F16K15/04 ,  F16K39/02

Abstract: A valve assembly for a fuel tank system including a fuel tank having a fuel tank outlet and a purge canister includes a main valve and a safety check valve. The main valve can be configured to move from a closed position to an open position. The main valve can have a main valve first port fluidly coupled to the outlet of the fuel tank and a main valve second port fluidly connected to the purge canister. The safety check valve can be configured to move from an open position to a closed position upon a pressure drop at the fuel tank outlet exceeding a predetermined threshold. The safety check valve can have a safety check valve first port fluidly coupled to the outlet of the fuel tank and a safety check valve second port fluidly coupled to the purge canister.

公开(公告)号：US20200254869A1

公开(公告)日：2020-08-13

申请号：US16865240

申请日：2020-05-01

Applicant: Eaton Intelligent Power Limited

Inventor： Jeffrey B. Smith ,  Vaughn K. Mills ,  Daniel Pifer ,  Nikhil Nahar ,  Steven Ambrose ,  Max Franklin

IPC: B60K15/035 ,  F02M25/08

Abstract: A method for operating an evaporative emissions control system for use with a fuel tank that stores and delivers fuel to an internal combustion engine is provided. A vent shut-off assembly is provided that selectively opens and closes at least one valve to provide overpressure and vacuum relief for the fuel tank. The vent shut-off assembly selectively vents to a purge canister. The at least one valve is closed whereby vapor is precluded from passing from the fuel tank to the purge canister. A purge event is performed wherein dedicated fresh air is drawn into the purge canister and delivered from the purge canister to the engine.

公开(公告)号：US20200055390A1

公开(公告)日：2020-02-20

申请号：US16665661

申请日：2019-10-28

Applicant: Eaton Intelligent Power Limited

Inventor： Robert P. Benjey ,  Jeffrey B. Smith ,  Daniel Pifer ,  Robert A. Dayton

IPC: B60K15/077 ,  B60K15/035

Abstract: A pump assembly for a liquid trap of a vehicle fuel tank assembly includes a pump configured to couple to the liquid trap and selectively drain liquid therefrom, a sensor configured to monitor an inductive signature of the pump, and a controller programmed to operate the pump and monitor the inductive signature to determine if liquid is present in the liquid trap based on the monitored inductive signature.

公开(公告)号：US11491866B2

公开(公告)日：2022-11-08

申请号：US17004388

申请日：2020-08-27

Applicant: Eaton Intelligent Power Limited

Inventor： Vaughn K. Mills ,  Jeffrey B. Smith ,  Dan L. Pifer ,  Nikhil Nahar ,  Clark Fortune ,  Steve C. Holmquest ,  Sagar Dilip Pingale ,  Curtis Moy

IPC: B60K15/035 ,  F02M25/08 ,  F16K31/524 ,  F16K31/04 ,  F16K31/528 ,  B60K15/03

Abstract: A vent shut-off assembly configured to manage venting on a fuel tank configured to deliver fuel to an internal combustion engine includes a first liquid vapor discriminator (LVD), a main housing, a first poppet valve assembly, a pump and an actuator assembly. The first LVD is disposed in the fuel tank. The main housing selectively vents to a carbon canister. The first poppet valve assembly has a first poppet valve arranged in the main housing. The pump selectively pumps liquid fuel from the main housing. The actuator assembly is at least partially housed in the main housing and includes a cam assembly having a cam shaft that includes a first cam and a second cam. The first cam has a profile that one of opens and closes the first poppet valve fluidly coupled to the first LVD.