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热词
    • 9. 发明公开
    • Piezoelectric crystal spark plug
    • 火花塞具有压电晶体。
    • EP0047020A1
    • 1982-03-10
    • EP81106866.7
    • 1981-09-02
    • Taggart, Charles W.
    • Norris, Elwood G.
    • F02P3/12H01T13/40
    • H01T13/40F02P3/12F02P13/00H01L41/107
    • A piezoelectric crystal spark plug includes a body (112) similar to a conventional spark plug, a central electrode (144) extending from the bottom end of the body (112), and a ground electrode (116) disposed near but spaced from one end of the central electrode (144) and connected to the body (112). A piezoelectric crystal (100) is included within the body and one side of the crystal is electrically coupled to the other end of the central electrode (144). A deforming device (124) is also included within the body to deform the crystal (100) and cause it to produce and apply an electrical signal to the central electrode (144). This electrical signal produces a spark between the central and ground electrode similar to a conventional spark plug. The deforming device can include a striker element for striking the crystal to deform it, a second low voltage piezoelectric crystal (124) coupled to the first mentioned piezoelectric crystal (100) so that when a low voltage signal is applied to the second crystal (124) it deforms to thereby deform the first piezoelectric crystal (100), a solenoid disposed in the body to strike or apply a force to the piezoelectric crystal to deform it in response to a low voltage signal, or other suitable deforming devices.