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：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.