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2. EPA grants California waiver to ban sales of new gas-powered ...

   www.aol.com/epa-grants-california-waiver-ban...

   The U.S. Environmental Protection Agency on Wednesday granted California its request to enforce vehicle emissions standards stricter than federal rules, including the state's ban on sales of new ...

3. U.S. EPA approves California rule banning the sale of new gas ...

   www.aol.com/news/u-epa-approves-two-california...

   The U.S. Environmental Protection Agency has signed off on two major California clean air rules designed to reduce pollution from cars and trucks, including a ban on selling new gasoline-powered ...

4. Two- and four-stroke engines - Wikipedia

   en.wikipedia.org/wiki/Two-_and_four-stroke_engines

   The shaft of the four-stroke piston rotates twice as fast as the shaft of the two-stroke piston, and the two-stroke part always runs at half speed. This ensures that both parts work optimally regarding fuel consumption at all times. The same principles apply to having two distinct engines, but the design of the M4+2 is much simpler.

5. Biden admin expected to offer California waiver to ban gas ...

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   The Biden administration is reportedly considering giving California permission to ban new gas-powered vehicles in the state within a decade before the Democrat's term comes to an end.

6. Two-stroke engine - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_engine

   A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft.

7. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel). Tiny ones used in computers are sometimes called biscuit blowers. These fans move air from the rotating inlet of the ...

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. California regulators vote to ban the sale of new gasoline ...

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   Over the past 12 years, California has provided more than $1 billion in rebates for the sale of 478,000 electric, plug-in or hybrid vehicles, the AP said. Image: Traffic at the San Francisco ...