发明授权
US09476347B2 Controlled spark ignited flame kernel flow in fuel-fed prechambers
有权
燃料喷射预燃烧器中的控制火花点燃火焰核流
- 专利标题: Controlled spark ignited flame kernel flow in fuel-fed prechambers
- 专利标题(中): 燃料喷射预燃烧器中的控制火花点燃火焰核流
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申请号: US13347448申请日: 2012-01-10
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公开(公告)号: US09476347B2公开(公告)日: 2016-10-25
- 发明人: Domenico Chiera , David C. Petruska , Gregory James Hampson
- 申请人: Domenico Chiera , David C. Petruska , Gregory James Hampson
- 申请人地址: US CO Fort Collins
- 专利权人: Woodward, Inc.
- 当前专利权人: Woodward, Inc.
- 当前专利权人地址: US CO Fort Collins
- 代理机构: Fish & Richardson P.C.
- 主分类号: F02B19/10
- IPC分类号: F02B19/10 ; F02B19/12 ; F02B19/16 ; H01T13/32 ; H01T13/54 ; F02P9/00 ; F02P13/00
摘要:
A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode.
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