金融界2025年7月19日消息,国家知识产权局信息显示,长城汽车股份有限公司取得一项名为“发动机和车辆”的专利,授权公告号CN223119990U,申请日期为2024年10月。专利摘要显示,本实用新型公开了一种发动机和车辆,发动机包括:缸体,缸体内形成有正时腔,缸体设有位于正时腔下方的油底壳;缸盖,缸盖与缸体相连且共同限定出回油腔,回油腔与正时腔连通,回油腔的底壁形成有回油孔,回油孔与油底壳连通;...
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