公开(公告)号：US20170342951A1

公开(公告)日：2017-11-30

申请号：US15191543

申请日：2016-06-24

Applicant: Hangzhou XZB Tech Co.,Ltd

Inventor： Na XU ,  Haijun REN

IPC: F02M59/10 ,  F01L1/46

CPC classification number: F02M59/102 ,  F01L1/14 ,  F01L1/245 ,  F01L1/46 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2109/00 ,  F04B1/0426

Abstract: A high-pressure oil pump roller tappet, used for automobile fuel injection system, mounted between the driving cam and the tappet. The roller tappet includes a shell, a holder, a roller, and a pin. Planes A are arranged on both sides of the seam on lateral sides of the shell. Holes I are arranged at symmetrical positions on two planes A. Holes II are arranged on symmetrical positions on vertical plates. The roller is located in the middle of the pin. Welding has no requirement on the thickness of the plate. The weight can be controlled effectively, reducing inertia force, friction, and wear, improving engine efficiency. The shell and holder are designed as being separate, ensuring that the shell subjects to lateral force as little as possible when the holder subjects to a force, such that the shell is less likely to vibrate. Thus, the shell avoids the abrasion.

公开(公告)号：US20190093522A1

公开(公告)日：2019-03-28

申请号：US15795253

申请日：2017-10-27

Applicant: Hangzhou XZB Tech Co.,Ltd

Inventor： Na XU ,  Haijun REN

IPC: F01L1/18

Abstract: This invention provides a novel lightweight rocker arm frame and a forming process of a curved crown part thereof, including two sidewalls and two bottom plates. The two sidewalls are connected through the bottom plates respectively located at two ends. A ball socket protruded upwards and an, oil hole are arranged at a bottom plate at one end, and a bottom surface of a bottom plate at the other end is a bearing surface. A pin shaft hole is formed in the middle of each sidewall without the bottom plates. According to the rocker arm frame disclosed by the invention, the strength of the structure can be ensured while light weight is realized. The production efficiency of the rocker arm frame is effectively improved, and the structure of the valve rod supporting position is improved.