piston

Many municipalities across the country have banned two-stroke leaf blowers—so named because a piston in a leaf blower engine makes two movements instead of four, as in a car.

The technology uses the bobbing floaters to compress pistons, which push hydraulic fluid into storage tanks located nearby on land.

Flowing spaces open with double-height spaces, subtle level changes and large openings like skylights, clerestory windows, balconies, and even a spot where an entire section of roof pivots open thanks to a large piston.

Young explains that they have fewer moving parts than traditional piston engines, making them easier to maintain, yet deliver surprising power for their relatively compact, lightweight size.

It is aimed at existing pilots who want to transition away from diesel piston engines.