Piston and process for achieving controlled ignition

Details Piston and process for achieving controlled ignition Piston and process for achieving controlled ignition

F - Mech Eng,Light,Heat,Weapons

02

F

F02F 3/28 (2006.01) F02B 19/08 (2006.01) F02B 21/02 (2006.01) F02B 23/00 (2006.01) F02B 23/06 (2006.01) F02F 3/26 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01) F02B 75/12 (2006.01)

Patent

CA 2046602

2046602 9009519 PCTABS00001 A piston for an engine is provided with a reaction chamber (44) communicating with a recessed area (42) of the piston through a restricted continuous slot orifice (46). The fuel undergoes a controlled, cold flame reaction process while in intimate contact with the crown portion (54) of the piston (14). The reaction produces enough radicals to seed subsequent fuel charges to properly condition the charge. The orifice (46) ensures that outward flow of radicals from the reaction chamber is controlled to the extent that they will be maintained in the combustion chamber following an exhaust event of the combustion cycle so they will be available during a subsequent compression stroke of the piston for seeding the subsequent charge. The radical population in the subsequent charge conditions the charge to obtain dependable ignition in a compression ignition engine as well as knock free combustion at relatively lean air to fuel ratios in a spark ignited engine.

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