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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsAtsushi Baba, Tatsuya Nakagawa, Masahiko Minemi, Tsuneo Endoh, Taizuo Kitamura
Estimating the term…
In an internal combustion engine, a combustion chamber is provided in a cylinder head on one side of a partition wall, and a heat-insulating layer is provided in the cylinder head on the other side of the partition wall. Cooling passages are provided in a plurality of regions provided with different heat loads in the partition wall, respectively. The flow rate of a cooling medium is set, so that the flow rate in the cooling passage existing in the region of the larger heat load is larger than that in the cooling passage existing in the region of the smaller heat load. Thus, the temperature of an exhaust gas can be maintained at a high level by maintaining the combustion chamber at a high temperature.
An internal combustion engine comprising a combustion chamber (17) provided in a cylinder head (10) on one side of a partition wall (11), a heat-insulating layer (18) provided in said cylinder head (10) on the other side of said partition wall (11), and cooling passages (a to d) provided in a plurality of regions (A to D) provided with different heat loads in said partition wall (11), respectively, so that the flow rate of a cooling medium is decreased from said cooling passage (a) existing in the region (A) of the largest heat load to said cooling passage (d) existing in said region (D) of the smallest heat load.
Dependencies are inferred from the claim text.