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2. Blast The Fall Foliage Off Your Lawn With The Best Backpack ...

   www.aol.com/lifestyle/best-backpack-leaf-blowers...

   The Best Backpack Leaf Blowers. Best Overall: Husqvarna 360BT Gas-Engine Backpack Leaf Blower. Best Value: Troy-Bilt TB51BP Backpack Leaf Blower. Best Power: Echo X-Series PB-7910T Backpack Leaf ...

3. Yamabiko Corporation - Wikipedia

   en.wikipedia.org/wiki/Yamabiko_Corporation

   In 1970, Kyoritsu claimed to have 'revolutionized' outdoor cleaning with the PB-9, a backpack power blower. The Echo brand of hand-held petrol powered tools including chainsaws, brushcutters, hedge trimmers and leaf blowers are manufactured in Yokosuka and Morioka, with other major plants in Shenzhen, China and Lake Zurich, Illinois. [5]

4. Leaf blower - Wikipedia

   en.wikipedia.org/wiki/Leaf_blower

   Kyoritsu followed that design with a backpack/blower/misting machine in 1955. in 1968, Kyoritsu applied for a patent on a backpack blower mister design, and in 1972 established themselves in the United States as Kioritz Corporation of America, and is said to have invented the first leaf blower in 1977. The company changed its name to Echo in 1978.

5. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

6. Brushcutter (garden tool) - Wikipedia

   en.wikipedia.org/wiki/Brushcutter_(garden_tool)

   The power unit of a 240 V electric brushcutter. A brushcutter (also called a brush saw, clearing saw or gasoline goat) is a powered garden or agricultural tool used to trim weeds, small trees, and other foliage not accessible by a lawn mower or rotary mower. Various blades or trimmer heads can be attached to the machine for specific applications.

7. Axial fan design - Wikipedia

   en.wikipedia.org/wiki/Axial_fan_design

   Factors which determine the performance of the fan include the number and shape of the blades. Fans have many applications including in wind tunnels and cooling towers. Design parameters include power, flow rate, pressure rise and efficiency. [1] Axial fans generally comprise fewer blades (two to six) than centrifugal fans. Axial fans commonly ...