Cylinder head for internal combustion engine

• Main Author: F. LAIMBCK
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2004
• Edition: 7
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

本发明涉及一用于内燃机的气缸头(1)，该内燃机带有至少一个在燃烧室(2)内产生漩涡流(S)，较佳地按照漩涡流(S)的方向弯曲的入口通道(3)，涉及漩涡流(S)的入口通道(3)带有外壁区域(3a)和内壁区域(3b)。在入口通道(3)的入口(9)的区域内，在燃烧室(2)内设置有一阀座环(4)。根据本发明，可在不显著地减小入口通道(3)流量横截面的情况下产生一强漩涡流(S)，同时，保持对气缸头的机械载荷为最小，由此，在阀座环(4)范围内，外壁范围(3a)至少部分地通过气缸头(1)的一凸肩(11)在阀座环(4)的内外壳表面(4a)内构成，由此，阀座环(4)的内外壳表面(4a)延伸超过所述凸肩(11)。 The invention relates to a cylinder head ( 1 ) for an internal combustion engine with at least one inlet channel ( 3 ), which generates a swirling flow (S) in the combustion chamber ( 2 ), preferably curved in the direction of the swirling flow (S) with an external wall region ( 3 a) and an internal wall region ( 3 b) relative to the swirling flow (S). A valve seat ring ( 4 ) is arranged in the region of the opening ( 9 ) of the inlet channel ( 3 ) into the combustion chamber ( 2 ). According to the invention, a strong swirling flow (S) without significant reduction of the flow cross-section of the inlet channel ( 3 ) may be achieved whilst keeping the mechanical loading on the cylinder head to a minimum, whereby the external wall region ( 3 a), in the region of the valve seat ring ( 4 ), is at least partly formed by a projection ( 11 ) of the cylinder head ( 1 ) within an internal surface ( 4 a) of the valve seat ring ( 4 ), whereby the internal surface ( 4 a) of the valve seat ring ( 4 ) extends beyond said projection ( 11 ).