Link for more information on the pulsejet I'm using. This is the manufacturer of my engine. There is a photo of mine running as part of the slideshow he has on the product page. It is considered the miniature one.
Pulsejet Engine Information - Beck-Technologies
Has a history of pulsejet design/use.
Hope you enjoy reading and seeing how it works.
The link shows far better than I can explain it.
Best regards,
Mike Bauer