US 6,981,484 B2
Internal combustion engine with divided combustion chamber
Robert Douglas Lampard, Canning Vale (Australia)
Assigned to Barrack Combustion Process Pty Ltd., Osbourne Park, Wash. (US)
Appl. No. 10/494,520
PCT Filed Nov. 13, 2002, PCT No. PCT/AU02/01545
§ 371(c)(1), (2), (4) Date Oct. 19, 2004,
PCT Pub. No. WO03/042518, PCT Pub. Date May 22, 2003.
Claims priority of application No. PR8855 (AU), filed on Nov. 14, 2001.
Prior Publication US 2005/0051130 A1, Mar. 10, 2005
Int. Cl. F02B 19/02 (2006.01); F02B 19/10 (2006.01); F02B 19/12 (2006.01)
U.S. Cl. 123—261 24 Claims
OG exemplary drawing
 
1. An internal combustion engine comprising:
a cavity in which a fuel can be combusted;
a body moveable within said cavity, said cavity and moveable body together defining a first combustion chamber;
a first fuel injector for injecting a first volume of fuel into said first combustion chamber;
a housing defining an auxiliary combustion chamber;
a passage extending from said auxiliary combustion chamber to said first combustion chamber;
a valve moveable between a first position where said valve provides a high impedance to fluid flow between said auxiliary combustion chamber and said first combustion chamber, and a second position where said valve provides substantially unimpeded fluid flow between said auxiliary combustion chamber and said first combustion chamber;
an auxiliary fuel and air injector for injecting a fuel/air mixture into said auxiliary combustion chamber, said fuel/air mixture comprising air sourced from outside of said first combustion chamber;
ignition means for igniting said fuel/air mixture in said auxiliary combustion chamber to produce an ignited fuel/air mixture for igniting said first volume of fuel; and,
wherein said first fuel injector and said housing are juxtaposed so that fuel injected by said first fuel injector and said ignited fuel/air mixture discharged through said passage are targeted at the same point in said first combustion chamber.