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US 11,346,276 B2Granted
Combustion chamber structure for internal combustion engine
AssigneeNissan Motor Co., Ltd.
InventorsTakuma Suzuki, Taisuke Shiraishi
Life of this patent
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Abstract
A combustion chamber structure for an internal combustion engine includes a recessed portion formed in a pent roof of a cylinder head on an upstream side of a tumble flow with respect to a spark plug.
Claims11
A combustion chamber structure for an internal combustion engine comprising:
- a recessed portion formed in a pent roof surface of a cylinder head on an upstream side of a tumble flow with respect to a spark plug, wherein
- the recessed portion is formed in an intake side roof surface of the pent roof surface, and
- an entire ignition portion of the spark plug is located on an exhaust side roof surface side relative to a central longitudinal axis of a cylinder.
Dependencies are inferred from the claim text.