Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SPARK PLUG AND IGNITION SYSTEM OF INTERNAL COMBUSTION ENGINE USING SPARK PLUG
Document Type and Number:
WIPO Patent Application WO/2015/113438
Kind Code:
A1
Abstract:
A spark plug (20) comprises an insulator (24), a central electrode (21), a housing (26), a flow guiding plug-in (28), and a grounding electrode (22). The insulator (24) is provided with a shaft hole extending in the axis direction. The central electrode (21) is inserted into the shaft hole penetrating through the insulator (24), and is exposed out of the end portion. The housing (26) is hollow column shaped and is sleeved on the surface of the insulator (24). The flow guiding plug-in (28) is columnar; a flaming hole (282) penetrating through the front end surface and the rear end surface of the flow guiding plug-in (28) is formed in the center of the flow guiding plug-in (28); the flow guiding plug-in (28) is fixedly disposed in the housing (26); the front end of the flow guiding plug-in (28) right faces the central electrode (21), and the rear end is located at the opening end of the housing (26); the outer wall of the flow guiding plug-in (28) is attached to the inner wall of the housing (26). The flow guiding plug-in (28) also comprises flow guiding holes (283) distributed around the flaming hole (282); the inner diameter of the center of each of the flow guiding holes (283) is greater than that of the port of the flow guiding hole (283), so that a spindle shape is formed. The grounding electrode (22) is disposed on the inner wall of the housing (26) or is disposed on the periphery of the flaming hole (282) in the front end of the flow guiding plug-in (28), and an ignition end portion with a spark discharging gap is formed between the grounding electrode (22) and the end portion of the central electrode (21). The spark plug can improve the ignition efficiency and the backflow efficiency of the spark plug, thereby improving the combustion efficiency of an internal combustion engine.

Inventors:
ZHANG, Die er (702 No.8, Baishi Road Taicheng Tow, Taishan Guangdong 0, 529100, CN)
Application Number:
CN2014/091864
Publication Date:
August 06, 2015
Filing Date:
November 21, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZHANG, Die er (702 No.8, Baishi Road Taicheng Tow, Taishan Guangdong 0, 529100, CN)
International Classes:
H01T13/54
Foreign References:
CN101006255A2007-07-25
GB119419A1918-10-03
CN103779788A2014-05-07
CN203826770U2014-09-10
CN103746291A2014-04-23
CN203826769U2014-09-10
CN103259195A2013-08-21
US3056899A1962-10-02
GB545351A1942-05-21
US2895069A1959-07-14
Attorney, Agent or Firm:
GUANGZHOU SINO PATENT & TRADEMARK AGENT CO.,LTD (HUA Hui, 301AB81-1 Xianlie Zhong Road, Yuexiu Distric, Guangzhou City Guangdong 5, 510095, CN)
Download PDF: