Hexagonal cluster nozzle for a rocket engine

Hybrid engine capable of employing at least a ramjet mode and a

Hybrid-composite gas turbine exhaust nozzle compression link

Hydrogen fueled spark ignition engine

Hydrogen fueled spark ignition engine

Hypersonic scramjet engine fuel injector

Hypersonic scramjet engine fuel injector

Hypersonic scramjet engine fuel injector

Hypersonic scramjet engine fuel injector

Inflatable engine protection system for recoverable rocket boost

Integrated air injection and exhaust gas recirculation system

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine control with fast exhaust catalyst wa

Internal combustion engine exhaust emission control system with

Internal combustion engine having a low-pressure exhaust-gas...

Internal combustion engine having lean NOx catalyst