US 12,434,177 B2
Electrostatically conductive filter element and fuel filter
Yu Zhang, Huzhou (CN); Xiaowei Ying, Huzhou (CN); Jianbin Cheng, Huzhou (CN); and Qinglin Deng, Huzhou (CN)
Assigned to ZHEJIANG LAIEN FILTRATION SYSTEM CO., LTD., Huzhou (CN)
Filed by ZHEJIANG LAIEN FILTRATION SYSTEM CO., LTD., Huzhou (CN)
Filed on Oct. 10, 2022, as Appl. No. 17/962,658.
Claims priority of application No. 202211095145.5 (CN), filed on Sep. 9, 2022.
Prior Publication US 2024/0082758 A1, Mar. 14, 2024
Int. Cl. B01D 35/06 (2006.01); B01D 35/00 (2006.01); B01D 35/30 (2006.01)
CPC B01D 35/06 (2013.01) [B01D 35/005 (2013.01); B01D 35/30 (2013.01); B01D 2201/306 (2013.01); B01D 2201/50 (2013.01); B01D 2247/02 (2013.01); B01D 2257/80 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electrostatically conductive filter element, comprising a filter element frame and a filter medium sleeved on the periphery of the filter element frame, an annular end cover made of a conductive material being connected to one end of the filter medium, and a base being connected to the other end of the filter medium,
wherein a center of the base at the other end of the filter medium is closed;
wherein an annular raised wall axially extends from an inner opening of the annular end cover, and conductive portions radially extending inwards and configured to be in hard connection with an external conductive device are arranged on an inner surface of the annular raised wall;
wherein each of the conductive portions is provided with a contact surface matched with the external conductive device, and the contact surface gradually increases along the extension direction of the annular raised wall;
wherein the conductive portion and the external conductive device are in interference and close fit and are in surface connection; and
wherein the conductive portion is in a “U” or “V” shape.