I have an idea for a carb heat system that I would like to discuss. So far, my VW-powered KR2 has no carb heat. Air intake is through a round air filter box that is clamped directly against the carburetor intake.
My idea is to run a pipe from a hot area of the engine baffling system directly to the cover plate of the filter box. This way, I would get hot air that would by-pass the filter. I would maybe put a very coarse filter in order to prevent objects ingress in the carb. An open-close mechanism on the baffling side would act as a valve What I plan to do is: - Make the pick-up point at the rear of the bottom baffling plate (this is a VW engine, so there is a baffling plate running under the engine), on the side, opening 90 degrees from the airflow. The 90 degrees is because I want to avoid building high pressure in the carb. - Close the pick-up point with a small sliding plate, that would be spring loaded. The control will be a push-pull cable, same as for a choke. Opinions? Serge Vidal KR2 ZS-WEC - Taildragger, VW powered (2.4 liter, dual electronic ignition) - Total aircraft time: 390h - Aircraft hangared at: Orleans, France - Pilot moaning in: Tunis, Tunisia E-mail: [email protected] <mailto:[email protected]>
