阅读说明：本技术 具有至少一个气缸的内燃机 (Internal combustion engine with at least one cylinder ) 是由 A·泽尔克 M·克拉姆普菲尔 R·格伦德纳 于 2020-03-20 设计创作，主要内容包括：本发明涉及一种气缸盖(1),用于有至少一个自上而下的冷却系统的气缸(16)的内燃机,该气缸盖(1)包括界定中间板(4)并与燃烧室相距一定距离的第一子冷却室(2),以及界定隔热板(5)并靠近燃烧室的第二子冷却室(3),其中中间板(4)布置在第一子冷却室(2)和第二子冷却室(3)之间,且其中优选为环形的、在第一子冷却室(2)和第二子冷却室(3)之间的至少一个第一传送开口(11)布置在用于喷射或点火装置的中心接纳空间(10)的区域中,其中中心接纳空间(10)优选地相对于气缸的气缸轴线(16a)同心地形成。为了改善对具有高水平热应力的气缸盖(1)的部件的冷却,根据本发明,将第一子冷却室(2)和第二子冷却室(3)之间的至少一个第二传送开口(12a、12b、12c、12d)布置于在两个相邻的气体交换阀(7a、7b、7c、7d)之间的至少一个阀桥(8a、8b、8c、8d)的区域中。(The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder (16) of a top-down cooling system, the cylinder head (1) comprising a first sub-cooling chamber (2) which delimits an intermediate plate (4) at a distance from a combustion chamber, and a second sub-cooling chamber (3) which delimits a heat shield (5) and is adjacent to the combustion chamber, wherein the intermediate plate (4) is arranged between the first sub-cooling chamber (2) and the second sub-cooling chamber (3), and wherein at least one first transfer opening (11), preferably annular, between the first sub-cooling chamber (2) and the second sub-cooling chamber (3) is arranged in the region of a central receiving space (10) for an injection or ignition device, wherein the central receiving space (10) is preferably formed concentrically with respect to a cylinder axis (16a) of the cylinder. In order to improve the cooling of components of the cylinder head (1) having a high level of thermal stress, according to the invention at least one second transfer opening (12a, 12b, 12c, 12d) between the first (2) and second (3) sub-cooling chambers is arranged in the region of at least one valve bridge (8a, 8b, 8c, 8d) between two adjacent gas exchange valves (7a, 7b, 7c, 7 d).)

1. A cylinder head (1) for an internal combustion engine having at least one cylinder (16) with a cooling system from top to bottom, having a first sub-cooling chamber (2) adjoining an intermediate plate (4) and remote from a combustion chamber, and a second sub-cooling chamber (3) adjoining a heat shield (5) and close to the combustion chamber, wherein the intermediate plate (4) is arranged between the first sub-cooling chamber (2) and the second sub-cooling chamber (3), and wherein at least one first transfer opening (11), preferably annular, is arranged in the region of a central receptacle (10) for an injection or ignition device between the first sub-cooling chamber (2) and the second sub-cooling chamber (3), wherein the central receptacle (10) is preferably designed concentrically with respect to a cylinder axis (16a) of the cylinder, characterized in that at least one second transfer opening (12a, 12b, 12c, 12d) between the first sub-cooling chamber (2) and the second sub-cooling chamber (3) is arranged in the region of at least one valve bridge (8a, 8b, 8c, 8d) between two adjacent gas exchange valves (7a, 7b, 7c, 7 d).

2. The cylinder head (1) according to claim 1, characterized in that the first sub-cooling chamber (2) is arranged above the second sub-cooling chamber (3) such that coolant flows from the first sub-cooling chamber (2) into the second sub-cooling chamber (3) via the first transfer opening (11) and at least one of the second transfer openings (12a, 12b, 12c, 12d) in the region between two adjacent gas exchange valves (7a, 7b, 7c, 7 d).

3. The cylinder head according to claim 1 or 2, characterized in that the first transfer opening (11) is formed with a particularly continuous taper in the direction of the second sub-cooling chamber (3).

4. A cylinder head according to any one of claims 1 to 3, characterized in that the second transfer openings (12a, 12b, 12c, 12d) are inclined in the flow direction of the coolant in the valve bridge (8a, 8b, 8c, 8d), wherein the inclination deviates from the cylinder axis by about 0 ° to about 45 °, in particular by about 15 ° and about 30 °.

5. The cylinder head (1) according to any one of claims 1 to 4, characterized by at least one second transfer opening (12a, 12b, 12c, 12d) arranged above a hot spot (15) of the heat shield (5), wherein the second transfer opening (12a, 12b, 12c, 12d) is preferably directed towards the hot spot (15).

6. The cylinder head (1) according to any one of claims 1 to 5, wherein at least one of the second transfer openings (12a, 12b, 12c, 12d) is arranged substantially parallel to the cylinder axis (16 a).

7. The cylinder head (1) according to any one of claims 1 to 6, wherein a distance (a) between at least one of the second transfer openings (12a, 12b, 12c, 12D) and the cylinder axis (16a) is 15% to 40%, preferably 20% to 25%, particularly preferably about 20%, of the diameter (D) of the cylinder (16).

8. The cylinder head (1) according to any one of claims 1 to 7, having at least two valve bridges (8a, 8b, 8c, 8d), characterized in that at least one of the second transfer openings (12a) is arranged in the region of a first valve bridge (8a) and at least one further second transfer opening (12b) is arranged in the region of a second valve bridge (8 b).

9. The cylinder head (1) according to claim 8, characterized by at least one second transfer opening (12a, 12b, 12c, 12d) arranged in the region of the first valve bridge (8a), in the region of the second valve bridge (8b) and in the region of a third valve bridge (8c), preferably also in the region of a fourth valve bridge (8d), respectively.

10. The cylinder head (1) according to claim 8 or 9, characterized in that at least two of the second transfer openings (12a, 12b, 12c, 12d) are equidistant from the cylinder axis (16 a).

11. The cylinder head (1) according to claim 10, characterized in that the centers (13a, 13b, 13c, 13D) of at least three of the second transfer openings (12a, 12b, 12c, 12D) lie on a circular line (14) around the cylinder axis (16a), the diameter (D) of which is 30 to 80%, preferably 35 to 50%, particularly preferably about 40% of the diameter (D) of the cylinder (16).

12. The cylinder head (1) according to any one of claims 1 to 11, having at least two of the valve bridges (8a, 8b, 8c, 8d), characterized in that the distance (a) between at least one of the second transfer openings (12a, 12b, 12c, 12d) and the cylinder axis (16a) is smaller than the distance (a) between the valve axis (9a, 9b, 9c, 9d) and the cylinder axis (16a) of at least one adjacent gas exchange valve (7a, 7b, 7c, 7 d).

13. A method for cooling a cylinder head (1) according to any one of claims 1 to 12, wherein coolant flows into the first sub-cooling chamber (2) of the cylinder head (1), at least part of the coolant flowing from the first sub-cooling chamber (2) into the second sub-cooling chamber (3) via at least one of the first transfer openings (11) in the region of a central receptacle (10) for injection or ignition means, and wherein the coolant leaves the cylinder head (1) after flowing through the second sub-cooling chamber (3), characterized in that at least another part of the coolant flows from the first sub-cooling chamber (2) via at least one of the second transfer openings (12a, 8b, 8c, 8d) in the region of at least one of the valve bridges (8a, 8b, 8c, 8d) between two adjacent gas exchange valves (7a, 7b, 7c, 7d), 12b, 12c, 12d) into the second sub-cooling chamber (12a, 12b, 12c, 12 d).