The phrase "intake side" refers to the direction or area where something is taken in, like air or fluid. It can be used to describe the part or location where the intake happens. Full definition
We may conclude that any effects of meal pattern on the regulation of body weight are likely to be mediated through effects on the food intake side of the energy balance equation. (fitnsync.com)
If this control happens only in intake side, it is called «variable valve timing». (mechanics.stackexchange.com)
The front splitter, bargeboards and larger air - intake side pods - among other bits and pieces - are all made from the stuff. (carthrottle.com)