CYLINDER HEAD AND INTERNAL COMBUSTION ENGINE

To cool a wide range of a cylinder head with good balance.SOLUTION: A water jacket 7 has a first water passing port 11 in which a cooling liquid flows, a second water passing port 12 from which the cooling liquid flows out, and a body portion 13 that connects the first water passing port 11 and the second water passing port 12, and in which the cooling liquid flows. The body portion 13 has a first end portion 13a provided with a first water passing port 11, a second end portion 13b on the opposite side to the first end portion 13a, and a third end portion 13c provided with a second water passing port 12. The body portion 13 has a plurality of branch portions 26 to 28 branching to a plurality of channels 26a to 26c, 27a to 27c, and 28a to 28c, on a straight line L1 extending in a direction from the first end portion 13a toward the second end portion 13b.SELECTED DRAWING: Figure 1 【課題】シリンダヘッドの広い範囲をバランスよく冷却することができるようにする。【解決手段】ウォータージャケット７は、冷却液が流入する第１通水口１１と、冷却液が流出する第２通水口１２と、第１通水口１１と第２通水口１２とを接続し、冷却液が流れる本体部１３と、を有する。本体部１３は、第１通水口１１が設けられた第１端部１３ａと、第１端部１３ａの反対側の第２端部１３ｂと、第２通水口１２が設けられた第３端部１３ｃと、を有する。本体部１３は、第１端部１３ａから第２端部１３ｂに向かう方向に延びる直線Ｌ１上に、複数の流路２６ａ～２６ｃ，２７ａ～２７ｃ，２８ａ～２８ｃに分岐させる分岐部２６～２８を複数有する。【選択図】図１