公开(公告)号：US20160376968A1

公开(公告)日：2016-12-29

申请号：US14753499

申请日：2015-06-29

Applicant: Caterpillar Inc.

Inventor： Dongming Tan ,  Brian M. Cole ,  Shawn R. Herold ,  Kevin L. Dea ,  Theron Cassidy ,  Matthew F. Fahrenkrug ,  Douglas A. Long ,  James J. Driscoll

IPC: F01N3/20 ,  F01N3/021 ,  F01N3/08

CPC classification number: F01N3/2066 ,  F01N3/021 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/106 ,  F01N2530/22 ,  F01N2560/021 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  Y02T10/24

Abstract: A header unit for a reductant tank is provided. The header unit includes a reductant draw conduit extending into an interior space of the reductant tank. The reductant draw conduit is configured to draw a reductant from the reductant tank. The reductant draw conduit includes at least one expansion opening provided along a length thereof. The header unit also includes a valve element coupled to the reductant draw conduit. The valve element includes a main body member defining a channel therethrough. The main body member circumferentially surrounds at least a portion of the reductant draw conduit corresponding to the at least one expansion opening. The main body member is made of an elastomeric material configured to accommodate an expansion thereof.

Abstract translation: 提供了一种用于还原罐的头部单元。 头部单元包括延伸到还原剂罐的内部空间中的还原剂牵引导管。 还原剂牵引导管构造成从还原槽中吸收还原剂。 还原剂牵引导管包括沿其长度设置的至少一个膨胀开口。 集管单元还包括联接到还原剂牵引导管的阀元件。 阀元件包括限定穿过其中的通道的主体构件。 主体构件周向地包围对应于至少一个膨胀开口的还原剂牵引导管的至少一部分。 主体构件由构造成适应其膨胀的弹性体材料制成。