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2. Leaf blower - Wikipedia

   en.wikipedia.org/wiki/Leaf_blower

   A leaf blower, commonly known as a blower, is a device that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors . Gasoline models have traditionally been two-stroke engines , but four-stroke engines were recently introduced to partially address air pollution concerns.

3. Scavenging (engine) - Wikipedia

   en.wikipedia.org/wiki/Scavenging_(engine)

   Scavenging is the process of replacing the exhaust gas in a cylinder of an internal combustion engine with the fresh air–fuel mixture (or fresh air, in the case of direct-injection engines) for the next cycle. If scavenging is incomplete, the remaining exhaust gases can cause improper combustion for the next cycle, leading to reduced power ...

4. Crankcase ventilation system - Wikipedia

   en.wikipedia.org/wiki/Crankcase_ventilation_system

   The system usually consists of a tube, a one-way valve and a vacuum source (such as the inlet manifold). The unwanted gases, called "blow-by", are gases from the combustion chamber which have leaked past the piston rings. Early engines released these gases to the atmosphere simply by leaking them through the crankcase seals.

5. Four-stroke engine - Wikipedia

   en.wikipedia.org/wiki/Four-stroke_engine

   Four-stroke cycle used in gasoline/petrol engines: intake (1), compression (2), power (3), and exhaust (4). The right blue side is the intake port and the left brown side is the exhaust port. The cylinder wall is a thin sleeve surrounding the piston head which creates a space for the combustion of fuel and the genesis of mechanical energy.

6. Cyber Monday Greenworks Deals 2023: Leaf Blowers ... - AOL

   www.aol.com/lifestyle/cyber-monday-greenworks...

   The chainsaw comes with a charger and a 4.0-amp-hour battery, which Greenworks estimates will provide you with up to 140 cuts per charge on 4 by 4 lumber. You can also save 40 percent on this ...

7. Detroit Diesel Series 53 - Wikipedia

   en.wikipedia.org/wiki/Detroit_Diesel_Series_53

   [3]: 4 As the piston continues downward, it uncovers the air intake ports again, which helps to displace exhaust gases. This is an example of uniflow scavenging; since the intake air enters at slightly greater than atmospheric pressure, the blower also assists in scavenging spent combustion gasses at the end of the power stroke. When scavenging ...