Reinforced composite articles and method of making same

Reinforced metallic honeycomb structure

Removal of front end blockage of a diesel particulate filter

Removal of particulate material from a gas

Removal of particulates from diesel engine exhaust gas

Removing nitrogen oxides during a lean-burn engine cold start

Reverse cleaning regeneration type exhaust emission control devi

Reversing flow catalytic converter for internal combustion engin

Reversing flow catalytic converter for internal combustion...

Reversing flow catalytic converter for internal combustion...

Robust EGR control for counteracting exhaust back-pressure...

Robust EGR control for counteracting exhaust back-pressure...

Robust exhaust manifold

Rocket engine nozzle

Rocket engine nozzle having a notched diverging portion

Rocket engine nozzle with ejectable inserts

Rocket motor nozzle assemblies with erosion-resistant liners

Rocket nozzle system

Rotary piston four-stroke internal combustion engine

Rotating joint for an exhaust pipe of an automobile vehicle