Cylinder head
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsMasahiko Asano, Noboru Takagi, Naoto Hisaminato, Minoru Okimura, Shinya Wakabayashi
Life of this patent
Estimating the term…
Abstract
A cylinder head includes an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes. The cylinder head includes a first fin and a second fin projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas. The cylinder head includes a first projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the first fin. The cylinder head also includes a second projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the second fin.
Claims8
A cylinder head comprising:
- an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes;
- a fin including a protrusion projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas passing through the exhaust port;
- and
- a projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the fin, wherein
- an upstream end of the fin is a tip, and
- the projection is located upstream of the tip.
A cylinder head comprising:
- an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes;
- a fin including a protrusion projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas passing through the exhaust port;
- a projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the fin;
- a first fin including the fin;
- and
- a second fin including a protrusion projecting from the inner wall of the exhaust port and extending in the flow direction of the exhaust gas passing through the exhaust port, the second fin being arranged next to the first fin in a circumferential direction of the exhaust port, wherein
- the projection is arranged in a gap between the first fin and the second fin.
A cylinder head comprising:
- an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes;
- a fin including a protrusion projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas passing through the exhaust port;
- a projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the fin;
- an upstream projection including the projection;
- and
- a downstream projection projecting from the inner wall of the exhaust port and extending in the direction intersecting the fin, the downstream projection being arranged downstream of the upstream projection.
Dependencies are inferred from the claim text.