Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Note that a) the blades a) solid to the auger shaft and b) one half of each blade moves snow to the impeller in the center, and the other moves it away from the impeller! I haven't figured out how that works.

This is an Ariens impeller that represents the design on the Ariens, Toro, and Simplicity/Deere/Snapper, all companies that have put effort into optimizing snow movement:

Any ideas on how the first one works?