Who invented the Atkinson cycle?
engineer James Atkinson
Like countless other 19th-century inventors, entrepreneurs, and tinkerers, British engineer James Atkinson sought ways to improve on the Otto four-stroke combustion engine, first produced in 1876.
What is the different between Atkinson cycle and Otto cycle?
An Atkinson cycle has a greater work output and a higher thermal efficiency than the Otto cycle at the same operating condition. The compression ratios that maximize the work of the Otto cycle are always found to be higher than those for the Atkinson cycle at the same operating conditions.
What is meant by the term Atkinson cycle?
The term Atkinson cycle has been used to describe a modified Otto-cycle engine in which the intake valve is held open longer than normal to allow a reverse flow of intake air into the intake manifold. This reduces the compression ratio, but the expansion ratio remains the same.
Can you turbo an Atkinson-cycle engine?
Like said above, the Atkinson is designed to have a short compression stroke and a longer combustion stroke (by valve timing). A turbo would actually cancel out this design, meaning it would be putting more compression on the compression stroke.
What engines use the Atkinson-cycle?
Vehicles using Atkinson-cycle engines
- Chevrolet Volt.
- Chrysler Pacifica (front-wheel drive) plug-in hybrid model minivan.
- Ford C-Max (front-wheel drive / US market) hybrid and plug-in hybrid models.
- Ford Escape/Mercury Mariner/Mazda Tribute electric (front- and four-wheel drive) with a compression ratio of 12.4:1.
What cars use Atkinson cycle engine?
Who uses Atkinson engines?
Chevrolet Volt. Chrysler Pacifica (front-wheel drive) plug-in hybrid model minivan. Ford C-Max (front-wheel drive / US market) hybrid and plug-in hybrid models. Ford Escape/Mercury Mariner/Mazda Tribute electric (front- and four-wheel drive) with a compression ratio of 12.4:1.
What is different about an Atkinson cycle engine?
An Atkinson-cycle engine works the same way, but with a twist. In a regular engine, the intake valve stays closed when the piston moves up on its compression stroke, creating pressure in the cylinder. In an Atkinson-cycle engine, the valve stays open slightly longer.
Does Toyota use an Atkinson cycle engine?
An innovative piece of automotive technology, the Atkinson cycle engine is a primary component of the fuel-efficient 2016 Toyota Prius design and additional Toyota hybrid models.