Engine and bearing main bearing structure thereof

• Main Authors: CHEN HAIRUI, WANG ZESHENG, ZHOU WEI
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2023
• Subjects: BLASTING; CRANKCASE VENTILATING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; LUBRICATING INTERNAL COMBUSTION ENGINES; LUBRICATING OF MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The utility model belongs to the technical field of engine equipment, and particularly relates to an engine and a bearing main bearing structure thereof, the bearing main bearing structure comprises an engine body, a bearing cover, a first oil way and a second oil way, the inner circumferential surface of the first arc groove is used for mounting a main bearing lower bush for carrying out bearing support on the lower half part of the bearing surface of the crankshaft; the bearing cover is provided with a second arc groove which is correspondingly spliced with the first arc groove to form a round hole, and the inner circumferential surface of the second arc groove is used for mounting a main bearing upper bush which is used for carrying out bearing support on the upper half part of the bearing surface of the crankshaft; the first oil way is arranged in the machine body and is communicated with the oil groove of the main bearing lower bush; and the second oil path is arranged in the bearing cover and is communi