Novel sealing bowl-shaped plug for high-strengthened diesel engine

• Main Authors: TENG QIZHAI, LIU HONG, ZHONG LIMIN, YE YUNZHAN, GUO LEI, FANG LINGYUN, LI HONGZHEN
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2012
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The utility model discloses a novel sealing bowl-shaped plug for a high-strengthened diesel engine. Stainless steel is adopted and an outer circular sealing face adopts a micro-taper degree design; and the end face uses a circular shape and the cross section adopts a thickened uniform wall thickness. The diameter of the outer circular face of a bowl-shaped plug is increased so that the radial interference of mounting is increased. The bowl-shaped plug is mounted in cylinder cover water sleeve plugging openings of a diesel engine and a gas engine in glue coating and pressure interference manners. The shape and the size of the novel bowl-shaped plug are subjected to analog computation and checking of sealing performance of a computer, a reliability test of a test machine testifies that the sealing performance of the cylinder cover plugging opening is obviously improved, and requirements of heat load and mechanical load of the cylinder covers of the high-strengthened diesel engine and the gas engine are met, so