Internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShizuo Sasaki
Life of this patent
Estimating the term…
Abstract
An engine comprising a first intake valve and a second intake valve that are arranged on each side of a plane including the axis of the cylinder of the engine. A first intake passage and a second intake passage are connected to the combustion chamber via the first intake valve and the second intake valve, respectively and extend along the plane in the same direction. A first fuel injector is arranged in the combustion chamber to inject fuel toward a region of the combustion chamber, which is located on the first intake valve side of the plane. A second fuel injector is arranged in the second intake passage to inject fuel into the second intake passage.
Claims17
An engine including a cylinder which defines an axis and a combustion chamber, the engine comprising:
- a first intake valve and a second intake valve that are arranged on each side of a plane including the axis;
- a first intake passage and a second intake passage that are connected to said combustion chamber via said first intake valve and said second intake valve, respectively, said first intake passage and said second intake passage extending along said plane in the same direction;
- a first fuel injector arranged in said combustion chamber that injects fuel only toward a region of said combustion chamber which is located on said first intake valve side of said plane, so that a mixture of air and the fuel injected by said first fuel injector occupies a first region of said combustion chamber;
- and
- a second fuel injector arranged in said second intake passage that injects fuel into said second intake passage, so that a mixture of air and the fuel injected by said second fuel injector occupies a second region of said combustion chamber, wherein said first region and said second region are substantially separate from each other.
An engine including a cylinder which defines an axis, a cylinder head and a combustion chamber, the engine comprising:
- a first intake valve and a second intake valve that are arranged on each side of a plane including the axis;
- a first intake passage and a second intake passage that are connected to said combustion chamber via said first intake valve and said second intake valve, respectively, said first intake passage and said second intake passage extending along said plane in the same direction, wherein said first intake passage comprises a helical intake port formed in the cylinder head, and wherein said second intake port comprises a substantially straight intake port formed in the cylinder head;
- a first fuel injector arranged in said combustion chamber that injects fuel only toward a region of said combustion chamber which is located on said first intake valve side of said plane, so that a mixture of air and the fuel injected by said first fuel injector occupies a first region of said combustion chamber;
- and
- a second fuel injector arranged in said second intake passage that injects fuel into said second intake passage, so that a mixture of air and the fuel injected by said second fuel injector occupies a second region of said combustion chamber, wherein said first region and said second region are substantially separate for each other.
Dependencies are inferred from the claim text.