公开(公告)号：US20160273430A1

公开(公告)日：2016-09-22

申请号：US14658580

申请日：2015-03-16

Applicant: Caterpillar Inc.

Inventor： Brian Cole ,  Xiaohui Gong ,  Dustin Landwehr

IPC: F01N3/20 ,  F01N5/02 ,  F01N3/28

CPC classification number: F01N3/2066 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2610/1413 ,  F01N2610/142 ,  F01N2610/1486 ,  Y02T10/16 ,  Y02T10/24

Abstract: A reductant filling assembly includes a first end and a second end, the first end adapted to connect from an interior side of a machine to a supply port attached to a receiver extending to an exterior side of the machine; a housing extending between the first end and the second end of the reductant filling assembly, the housing extending from a first housing end to a second housing end; a reductant supply conduit, a first circulating conduit, and a second circulating conduit extending through the housing from the first end to the second end. At least the first circulating conduit is in thermal communication with a wall of the reductant supply conduit, such that a heating fluid flowing through the first circulating conduit in a first direction transfers heat to a reductant fluid in the reductant supply conduit.

Abstract translation: 还原剂填充组件包括第一端和第二端，第一端适于从机器的内侧连接到附接到延伸到机器的外侧的接收器的供应端口; 在所述还原剂填充组件的第一端和第二端之间延伸的壳体，所述壳体从第一壳体端部延伸到第二壳体端部; 还原剂供应管道，第一循环管道和第二循环管道，其从所述第一端部延伸穿过所述壳体到所述第二端部。 至少第一循环管道与还原剂供应管道的壁热连通，使得沿第一方向流过第一循环管道的加热流体将热量传递到还原剂供应管道中的还原剂流体。

公开(公告)号：US20170218819A1

公开(公告)日：2017-08-03

申请号：US15009025

申请日：2016-01-28

Applicant: Caterpillar Inc.

Inventor： Dustin Landwehr ,  Satya Ramakrishna Manda Venkata Naga

IPC: F01N3/20

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2610/1413 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2610/1493 ,  Y02T10/24

Abstract: A reductant supply system includes a pump having a suction side and a discharge side, and a tank that holds a reductant therein. A reductant supply passageway extends from the tank to the suction side of the pump so as to supply the reductant from the tank to the pump. Further, a reductant discharge passageway extends from the discharge side of the pump and is configured to supply the reductant to a reductant injection assembly that injects the reductant into an exhaust stream of an engine. The system further includes purge componentry that connects the reductant supply passageway to an ambient air source during a purging operation such that the reductant supply system draws air from the air source sequentially through the purge passageway, the reductant supply passageway, and the pump assembly to purge at least the reductant supply passageway and the pump assembly during the purging operation.