发明授权
- 专利标题: Ion sensor glow plug assembly
- 专利标题(中): 离子传感器电热塞组件
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申请号: US09378167申请日: 1999-08-18
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公开(公告)号: US06285007B1公开(公告)日: 2001-09-04
- 发明人: Randolph Kwok-Kin Chiu , Haskell Simpkins , Keith Michael Brenske
- 申请人: Randolph Kwok-Kin Chiu , Haskell Simpkins , Keith Michael Brenske
- 主分类号: F23Q700
- IPC分类号: F23Q700
摘要:
An ion sensor glow plug assembly includes a shell for attachment to a cylinder head of a compression ignition engine and having a passageway extending axially therethrough. The ion sensor glow plug assembly also includes a center terminal disposed at least partially in the passageway of the shell and connected to a source of power to create a heating circuit. The ion sensor glow plug assembly includes a glow sheath disposed at least partially is the passageway of the shell and about the center terminal to create an ion sensing circuit. The ion sensor glow plug assembly further includes an insulator disposed at least partially in the passageway of the shell and about a portion of the glow sheath and extending axially therefrom to clean off soot on the glow sheath. The ion sensor glow plug assembly includes a coating disposed about a portion of the glow sheath between the glow sheath and the shell to isolate the shell from the glow sheath.