Spark-ignition internal combustion engine capable of preventing
Spark-ignition internal combustion engine capable of reducing no
Special purpose blends of hydrogen and natural gas
Speed dependent ignition controller and method
Speed sensitive electronic fuel control system for an internal c
Speed-dependent ignition timing system for internal combustion e
Spherical reentrant chamber
Spill control apparatus for fuel injection system
Spill control system for distributor pump
Spill type swirl injector
Spill valve for a fluid control system
Spiral distributor fuel heater
Spiral-wound hydrocarbon adsorber for an air intake of an...
Split engine
Split mode internal combustion engine with improved NO.sub.x red
Split temperature regulating system and method for turbo charged
Split vapor/liquid fuel supply system for internal combustion en
Split-type internal combustion engine
Spray bar pair assembly
Spring clip for retaining a fuel injector in a fuel rail cup