🛠️ Invention or technique

Brayton cycle and constant-pressure engine

Ciclo Brayton y motor de presión constante

Date
1872 · confidence medium
Place
Boston, Massachusetts, United States
Credited to
George B. Brayton
Field
Matter & energy

What it is

Brayton patented a constant-pressure continuous-combustion engine, his 'Ready Motor', with compressor, combustion chamber and expansion. Its thermodynamic cycle is that of gas turbines and turbojets.

The cycle is sometimes called the Joule cycle; Brayton applied it to piston engines fuelled with petroleum, not to turbines.

What it led to

  • the theoretical basis for gas turbines
  • turbojets and turbofans
  • combined-cycle power plants
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Sources✓ verified 2026-11-04