Patent Number: 6,305,364

Title: Internal combustion engine and operation thereof

Abstract: An engine is described that has a variable valve timing system. Under low and medium load operation of the engine, the valve timing system sets an prolonged valve overlap period and fuel is injected predominantly during this prolonged overlap period either into the intake ports or directly into the combustion chambers. The effect is that the fuel is heated by the internally recirculated exhaust gases which pre-conditions the fuel to improve ignitability and combustion quality.

Inventors: Ma; Thomas Tsoi Hei (Essex, GB)

Assignee: Ford Global Technologies, Inc.

International Classification: F02B 1/12 (20060101); F02D 9/04 (20060101); F02D 9/00 (20060101); F02B 1/00 (20060101); F02B 47/00 (20060101); F02D 13/02 (20060101); F02B 47/08 (20060101); F02M 25/07 (20060101); F02B 75/12 (20060101); F02B 75/00 (20060101); F02M 025/07 ()

Expiration Date: 10/23/2018