Glow plug with ion sensing electrode
AssigneeDenso Corporation
InventorAtsushi Kurano
Life of this patent
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Abstract
A glow plug includes a housing. A main body is at least partially disposed in the housing. The main body is supported with respect to the housing. A support member is included in the main body. A heating member is provided in the support member. A pair of lead wires are electrically connected to two ends of the heating member respectively. The lead wires extend out of the support member. An ion sensing electrode provided in the support member is operative for detecting a condition of ionization in a flame. The ion sensing electrode is buried in the support member to be prevented from being exposed to the flame.
Claims5
A glow plug comprising:
- a housing;
- a main body at least partially disposed in the housing and supported with respect to the housing;
- a support member included in the main body;
- a heating member provided in the support member;
- a pair of lead wires electrically connected to two ends of the heating member respectively and extending out of the support member;
- and
- an ion sensing electrode provided in the support member for detecting a condition of ionization in a flame;
- wherein the ion sensing electrode is buried in the support member to be prevented from being exposed to the flame.
A glow plug comprising:
- a support member;
- a heating member provided in the support member;
- and
- an electrode for sensing an ion current, the electrode having a sensing portion which is buried in the support member, such that said electrode is protected by the support member.
Dependencies are inferred from the claim text.