公开(公告)号：US09163596B2

公开(公告)日：2015-10-20

申请号：US13927258

申请日：2013-06-26

Applicant: CUMMINS FILTRATION IP, INC.

Inventor： Andrew J. Fisher ,  Eric R. Burgan ,  J Bradley Groom

IPC: F02M37/22 ,  F02M37/00

CPC classification number: F02M37/0035 ,  F02M37/0052 ,  F02M37/22 ,  Y10T137/7737

Abstract: A thermal recirculation valve (TRV) is described that provides for effective fuel module heating during cold operation to mitigate fuel waxing or gelling issues. The TRV allows for the control of heated return fuel flow into the module dependent upon the module's outlet fuel temperature without the return fuel directly contacting the wax element. The wax element is isolated from direct contact with the higher temperature return fuel through use of an elastomeric seal which prevents return fuel from directly contacting the wax element. In addition, the wax element is positioned in the fuel outlet of the module.

Abstract translation: 描述了一种热循环阀（TRV），其在冷运行期间提供有效的燃料模块加热以减轻燃油打蜡或凝胶化问题。 TRV允许根据模块的出口燃料温度控制加热的返回燃料流入模块，而不返回燃料直接接触蜡元件。 蜡元件通过使用弹性体密封件与较高温度的返回燃料直接接触而隔离，弹性体密封件防止返回的燃料直接接触蜡元件。 此外，蜡元件位于模块的燃料出口中。