The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency at the expense of power density.

Aug 4, 2016 · The Atkinson cycle delays the intake valve’s closing until the piston has completed 20 to 30 percent of its upward travel on the compression stroke.

Jun 20, 2024 · While the electric motor is powerful for low-speed driving but not as efficient for cruising, Atkinson cycle engines are less good at strong acceleration but great at a constant …

The Atkinson cycle engine was patented in the United States in 1887 (Atkinson filed for U.K. and European patents a couple years earlier). But the uneven strokes of the piston in his gasoline …

An Atkinson cycle is mainly designed to improve the Otto cycle engine’s efficiency by one particular improvement. In simple words, this cycle is invented to take advantage of the power …

Mar 23, 2023 · Today, engines labeled as “Atkinson Cycle” largely use a modified Atkinson cycle, where the compression stroke is shortened by keeping an intake valve open during the start of …

Jul 16, 2025 · The Atkinson cycle engine is a fuel-efficient internal combustion engine used in many hybrid cars. Originally invented in the 1800s by British engineer James Atkinson, the …

Nov 18, 2025 · The Atkinson cycle engine is a special type of internal combustion engine that modifies the traditional four-stroke cycle to achieve higher thermal efficiency. It was invented …

While an Otto cycle engine modified to run on the Atkinson cycle provides good fuel economy, it has a lower power output than a traditional Otto cycle engine. However, the power of the …

The Atkinson cycle, created in 1882 by British engineer James Atkinson (1846–1914), was more efficient than the Otto cycle. Other names for the Atkinson engine are "Utility 1892," "Cycle …