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Yunfeng Li

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Publication

Featured researches published by Yunfeng Li.

Archive | 2010

External rotor motor direct traction type oil extractor

Ping Zhao; Weimin Zhao; Yunfeng Li; Baoping Chang

Archive | 2010

Indirect pull-type double-end wire rope type oil pumping machine capable of working independently

Yunfeng Li; Ping Zhao; Weimin Zhao; Zhiguo Zhao

Archive | 2010

Direct-traction type pumping unit with outer rotor motor

Ping Zhao; Weimin Zhao; Yunfeng Li; Baoping Chang

Archive | 2010

Auto reversing indirectly dragged steel rope type oil pumping unit

Ping Zhao; Weimin Zhao; Tao Wang; Yunfeng Li

Archive | 2010

Adjustable rail clamping device of steel rope oil sucking machine

Lei Guo; Yunfeng Li; Weimin Zhao

Archive | 2011

Manual brake system for steel sling traction type pumping unit

Weimin Zhao; Yunfeng Li; Baoping Chang; Tao Wang

Archive | 2011

Quick positioning and measuring device of linear pumping unit

Weimin Zhao; Yunfeng Li; Baoping Chang; Zhiguo Zhao

Archive | 2010

Novel combined assembling bracket upright post for linear oil pumping unit

Lei Guo; Yunfeng Li; Tao Wang; Weimin Zhao

Archive | 2010

Automatic reversing indirect traction mechanism of steel wire rope oil pumping machine

Baoping Chang; Yunfeng Li; Tao Wang; Weimin Zhao

Archive | 2010

Flat belt winding-type linear oil pumping unit

Kun Wu; Yunfeng Li; Baoping Chang; Tao Wang; Lei Guo; Zhiguo Zhao

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Collaboration

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