Title:
IGNITION PLUG AND METHOD FOR MANUFACTURING IGNITION PLUG
Document Type and Number:
WIPO Patent Application WO/2018/123539
Kind Code:
A1
Abstract:
This ignition plug is provided with: a main metal fitting (11); a ground electrode (13) having one end which is affixed to the main metal fitting, and also having the other end, a part of which forms a sloped section (13A) tilted toward the center axis of the main metal fitting; a ground electrode tip (13B) joined to the sloped section; and a center electrode (14) having one end exposed from the main metal fitting. The ignition plug has: a base (14A) which is elliptic column shaped, is disposed so that the minor diameter direction faces the ground electrode tip, and has an end surface which is a sloped surface (14C) sloped in the minor diameter direction relative to the center axis; and a center electrode tip (14B) which is laser welded to the sloped surface. The ground electrode tip and the center electrode tip face each other.
More Like This:
Inventors:
SHIBATA MASAMICHI (JP)
Application Number:
PCT/JP2017/044369
Publication Date:
July 05, 2018
Filing Date:
December 11, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01T13/20; H01T21/02
Foreign References:
| JPS63257193A | 1988-10-25 | |||
| JPH11121142A | 1999-04-30 | |||
| JP2005339981A | 2005-12-08 |
Other References:
See also references of EP 3565069A4
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
Download PDF: