×

Fuel vapor enrichment for exhaust exothermic catalyst light-off

  • US 20050132697A1
  • Filed: 12/18/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/18/2003
  • Status: Active Grant
First Claim
Patent Images

1. An engine system including an engine and a fuel system that communicates with the engine, comprising:

  • a controller that communicates with the fuel system and that controls a first quantity of liquid fuel to the engine at a first A/F ratio and a second quantity of vapor fuel to the engine at a second A/F ratio to provide a fuel mixture having a third A/F ratio; and

    a secondary air source that supplies air to increase said third A/F ratio released from the engine.

View all claims
  • 13 Assignments
Timeline View
Assignment View
    ×
    ×