US 7,320,302 B2
Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine
Tatsuo Kobayashi, Susono (Japan)
Assigned to Toyota Jidosha Kabushiki Kaisha, Tokyo (Japan)
Filed on Oct. 31, 2006, as Appl. No. 11/589,907.
Application 11/589907 is a continuation of application No. 10/607128, filed on Jun. 27, 2003, granted, now 7,188,607.
Claims priority of application No. 2002-196291 (JP), filed on Jul. 04, 2002.
Prior Publication US 2007/0039588 A1, Feb. 22, 2007
Int. Cl. F02B 3/00 (2006.01); F02B 3/04 (2006.01)
U.S. Cl. 123—299  [123/305] 28 Claims
OG exemplary drawing
 
1. An internal combustion engine that compresses an air-fuel mixture containing a fuel and the air in a combustion chamber and makes the compressed air-fuel mixture subjected to combustion, so as to output power, said internal combustion engine comprising:
an air-fuel mixture compression mechanism that compresses the air-fuel mixture in said combustion chamber;
a first fuel-air mixture production module that produces a first fuel-air mixture in a cylinder containing a first fuel and the air at a specific ratio, which avoids auto ignition of the first fuel-air mixture through the compression by said air-fuel mixture compression mechanism, in said combustion chamber;
a second fuel-air mixture production module that supplies a second fuel, which is different from the first fuel, into a partial area of said combustion chamber to produce a second fuel-air mixture; and
an ignition module that is configured to ignite the second fuel-air mixture after said first fuel-air mixture is produced to compress and auto-ignite the first fuel-air mixture.