Patent Number: 6,332,457

Title: Method of using an internally heated tip injector to reduce hydrocarbon emissions during cold-start

Abstract: A method of heating fuel using a heated tip fuel injector includes providing an internal combustion engine having at least one fuel injector, the at least one fuel injector having an internal heater; energizing the engine starter and the internal heater; injecting fuel using closed valve injection; changing the load on the engine and substantially simultaneously switching to open valve injection; and after catalyst light-off, substantially simultaneously switching to closed valve injection.

Inventors: Imoehl; William James (Williamsburg, VA)

Assignee: Siemens Automotive Corporation

International Classification: F02M 53/06 (20060101); F02N 17/00 (20060101); F02N 17/04 (20060101); F02M 53/00 (20060101); F02M 031/00 ()

Expiration Date: 12/25/2018