sparker.

/spahr-ker/US // ˈspɑr kər //

火花机,喷火器,火花器,火花筒

Definitions

1.
- ›something that produces sparks.
- ›an apparatus used to test insulation on wires.

as inspark plug

Synonyms

Second, a spark coil, the primary terminals of which were connected to the primary sparker and to a set of dry batteries.
I was speeding a little—about one city block every five minutes—on Thirteenth Street, when my sparker stopped sparking.
Someone with a powerful sending set had cut loose into the air with his sparker.
I stayed with the Sparker outfit six years, and then my father died.