公开(公告)号：US20160369714A1

公开(公告)日：2016-12-22

申请号：US15140439

申请日：2016-04-27

Applicant: GM Global Technology Operations LLC

Inventor： Darrell W. BURLEIGH ,  Sergio QUELHAS ,  Lawrence A. STAAT ,  Kenneth C. SWARTZ

IPC: F02D41/00 ,  F02M25/08

CPC classification number: F02M25/0854 ,  F02M25/0818 ,  F02M25/0836 ,  F02M2025/0845

Abstract: A vapor purge system for an engine, includes a purge valve having a housing including an input port in communication with a purge canister and including an output port in communication with an intake system component defining a first bore portion receiving the output port with a first seal member disposed therebetween. The intake system component includes a second bore portion receiving a housing portion of the purge valve with a second seal member disposed therebetween. The first and second seal members are spaced such that when the housing is pulled away from the intake system component and the first seal member is out of engagement between the first bore and the output port, the second seal member can remain in engagement so that a diagnostic module can diagnose detachment of the purge valve from the intake system before any hydrocarbon vapor can be released into the atmosphere.

Abstract translation: 一种用于发动机的蒸汽吹扫系统，包括一个净化阀，该净化阀具有壳体，该壳体包括与吹扫罐连通的输入端口，并且包括与进气系统部件连通的输出端口，该进气系统部件限定接收输出端口的第一孔部分， 构件。 进气系统部件包括第二孔部分，其接收净化阀的壳体部分，其间设置有第二密封部件。 第一密封构件和第二密封构件间隔开，使得当壳体从进气系统构件被拉出并且第一密封构件在第一孔和输出口之间脱离接合时，第二密封构件可以保持接合，使得 在任何碳氢化合物蒸汽可以释放到大气中之前，诊断模块可以诊断排气阀与进气系统的脱离。