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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 发表日期：2018    内容类型：专利     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Mode-changing valve mechanism, has exhaust driving cam driving exhaust valve assembly by braking mode, and air inlet switching mechanism and switching mechanism that are connected with each other. 专利 申请日期: 2018-01-01, 公开日期: 2018-05-25 作者:  CUI J LONG W TIAN H WANG Y LIU W XU 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/02 Variable-mode continuously variable valve mechanism, has adjustable cam comprising exhaust braking adjustable cam, and air brake rocker arm reset spring for providing force to drive air brake rocker arm and air inlet brake rocker arm. 专利 申请日期: 2018-01-01, 公开日期: 2018-05-18 作者:  CUI J LONG W WANG Y LIU W XU D WANG 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/02 Variable-mode continuously variable valve mechanism, has cam provided with exhaust brake cam, and air brake rocker arm reset spring for driving air brake rocker arm to contact with curved surface of adjustable air inlet brake rocker arm. 专利 申请日期: 2018-01-01, 公开日期: 2018-05-25 作者:  CUI J LONG W TIAN H WANG Y LIU W WA 收藏  |  浏览/下载：8/0  |  提交时间：2019/12/02 Vacuum type sand soil sample preparation machine, has bulkhead joint whose one end is connected with exhaust hole and other end is respectively connected with three-way ball valves. 专利 申请日期: 2018-01-01, 公开日期: 2018-03-30 作者:  YANG G YANG Q PEI H CHENG F 收藏  |  浏览/下载：12/0  |  提交时间：2019/12/02