Internal combustion engine valve

• Main Authors: WAN SHIWANG, ZHANG LINHU, PENG YONG
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2022
• Subjects: BLASTING; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The internal combustion engine valve comprises a disc part formed by forging steel, the disc part is provided with a deposition pit located on an outer annular platform and limited in the outer annular platform on one side of the disc end face, and the outer annular platform limits the plane where the disc end face is located; a rod portion extending from a side of the disk portion facing away from the disk end face; the thermal barrier coating is located in the deposition pit of the disc portion, and the outer surface of the thermal barrier coating is flush with the outer annular platform so as to jointly define a disc end face. The coating deposition concave area and the outer annular platform or the limiting flange surrounding the coating deposition concave area are arranged on one side of the disc end face of the valve, so that a thermal barrier coating applied to the valve is not prone to falling off or collapsing, and good disc end face cooling performance can still be kept. 内燃发动机气门，包括：由钢材锻制而成的盘部，该盘部在其盘