Haijun REN

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Welded high-pressure fuel pump roller tappet
- Patent number 10,408,093
- Issue date Sep 10, 2019
- Hangzhou XZB Tech Co., Ltd
- Na Xu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Lightweight rocker arm frame and curved crown part forming process...
- Patent number 10,287,930
- Issue date May 14, 2019
- Hangzhou XZB Tech Co., Ltd
- Na Xu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
High pressure oil pump roller tappet
- Patent number 9,863,382
- Issue date Jan 9, 2018
- Hangzhou XZB Tech Co., Ltd
- Na Xu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
LIGHTWEIGHT ROCKER ARM FRAME AND CURVED CROWN PART FORMING PROCESS...
- Publication number 20190093522
- Publication date Mar 28, 2019
- Hangzhou XZB Tech Co.,Ltd
- Na XU
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
WELDED HIGH-PRESSURE FUEL PUMP ROLLER TAPPET
- Publication number 20190085731
- Publication date Mar 21, 2019
- Hangzhou XZB Tech Co.,Ltd
- NA XU
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
HIGH PRESSURE OIL PUMP ROLLER TAPPET
- Publication number 20170342951
- Publication date Nov 30, 2017
- Hangzhou XZB Tech Co.,Ltd
- Na XU
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS