×

Method for purging a dosing system

  • US 8,459,012 B2
  • Filed: 11/19/2008
  • Issued: 06/11/2013
  • Est. Priority Date: 11/19/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. An emissions reduction system, comprising:

  • an injector configured to dispense reductant into an exhaust system;

    a pump configured to provide the reductant to the injector through a first passageway; and

    a pressurized fluid tank fluidly connected to the injector through a second passageway and configured to urge a purge flow including the reductant combined with a pressurized fluid from the injector, through the pump, and to a reductant source,wherein the second passageway joins the first passageway at the injector.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×