What is the specific technical name for stationary hit-and-miss engines that used a continuously burning flame for fuel ignition? The WMSTR Otto collection has a number of them.
I know this is the same thing as a pilot light in a gas stove appliance or gas water heater, but was there a specific name for it back in the day?
For example, an 1883 Crown water pumping engine with flame pilot ignition:
I get all sorts of incorrect web search results related to conventional jet engines and homemade turbocharger jet engines if I try to search for a "flame tube" engine.
I know this is the same thing as a pilot light in a gas stove appliance or gas water heater, but was there a specific name for it back in the day?
For example, an 1883 Crown water pumping engine with flame pilot ignition:
I get all sorts of incorrect web search results related to conventional jet engines and homemade turbocharger jet engines if I try to search for a "flame tube" engine.