.~.~ Plural with intercycling by pressure fluctuations
Plural with intercycling by pressure fluctuations:
(under subclass 722) Device wherein at least two of the devices are of the intermittent combustion type and are related by interconnecting means so that cyclic events such as fuel or oxidizer inlet, fuel injection scavenging, ignition, or exhaust in one combustion device are influenced directly by pressure changes due to cyclic events in the other combustion device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.77+, for combustion products generators of the intermittent combustion type.
247+, for reaction motors utilizing intermittent combustion (e.g., pulse jets).