Solid state fluid flow sensor

Spark plug adapter and process

Spark plug construction for lean mixture burning internal combus

Spark-ignited internal combustion engine operated with charge st

Spark-ignited reciprocating-piston internal combustion engine

Speed sensitive electronic fuel control system for an internal c

Stabilized fuel injection system

Start and warm up features for electronic fuel management system

Start enrichment circuit for internal combustion engine fuel con

Start-up control for fuel injection system

Stratified charge

Stratified charge engine

Stratified combustion type engine

Stratified combustion type engine

System controlling any air/fuel ratio with stoichiometric sensor

Three cycle internal combustion engine

Throttle body injection apparatus

Timer means for sequential fuel injection

Timing gauge for diesel engines

Torch ignition type internal combustion engine