Reducing armature friction in an electric-actuated...
Reducing emissions using transport delay to adjust biased air-fu
Reducing engine emissions on an engine with...
Reducing fuel-vapor emissions by vortex effect
Reducing HC collection in a diesel particulate filter during...
Reduction of emissions of internal combustion engines by...
Redundant induction system for internal combustion engine
Redundant sensor with cylinder shutdown
Refrigerated fuel for engines
Refueling system
Regenerated engine with an improved heating stroke
Regenerated engine with improved heating and cooling strokes
Regenerative internal combustion engine
Regenerative internal combustion engine
Regenerative reciprocating open cycle internal combustion engine
Regenerator protector
Regulated canister purge solenoid valve having improved purging
Regulated engine crankcase gas filter
Regulated flow canister purge system
Regulated flow canister purge system