Junjie Ling

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Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Variable engine valve control system with pressure difference
- Patent number 7,404,382
- Issue date Jul 29, 2008
- Ningbo Hoyea Machinery Manufacture Co., Ltd.
- Junjie Ling
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
Three-way proportional pressure reducing control valve
- Publication number 20070193639
- Publication date Aug 23, 2007
- NINGBO HOYEA MACHINERY MANUFACTURE
- Junjie Ling
- G05 - CONTROLLING REGULATING
Information Patent Application
Variable engine valve control system with pressure difference
- Publication number 20070079780
- Publication date Apr 12, 2007
- NINGBO HOYEA MACHINERY MANUFACTURE CO., LTD.
- Junjie Ling
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES