Engine cylinder block and engine

• Main Authors: LI HONGQIANG, ZHOU QISHUN, TAN YONGKUI, HE YANMING, LIU QIANG, ZHANG YUEHUA, MA TONGLI, GAO YUANLING, LAN YANJIE, BAI CHANGXUN, LIANG LIFENG, HAN LUN
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2014
• 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 provides an engine cylinder block and an engine. An upper balance shaft cavity and a lower balance shaft cavity are arranged at the upper part and the lower part of the engine cylinder block respectively; a first hole for mounting the front shaft neck of an upper balance shaft assembly is formed in one end in the upper balance shaft cavity, and a second hole for mounting the middle shaft neck of the upper balance shaft assembly is formed in the middle of the upper balance shaft cavity; a third hole is formed in the other end of the upper balance shaft cavity and used for mounting a U-shaped patch for sealing the upper balance shaft cavity. According to the embodiment of the utility model, a double-balance-shaft structure is adopted; an upper balance shaft is directly connected with the main oil gallery of the cylinder block through two inclined oil holes; a lower balance shaft is connected with the main bearing hole oil gallery of the cylinder block through two inclined oil holes; a chain dr