Overhead-valve engine
Overhead-valve engine having non-parallel inlet and outlet valve
Overhead-valve type internal combustion engine
Overheat detecting apparatus for engine
Overheat detecting apparatus for engine
Overheat preventing system for internal combustion engines
Overheat preventing system for internal combustion engines
Overload protection mechanism
Overload warning apparatus for internal combustion engines
Override speed control
Override speed control having governed idle
Override speed control system
Overrun preventing device for multi-cylinder engine
Overrun prevention ignition system with ignition angle retardati
Overspeed ignition system
Overspeed protective system for internal combustion engines
Overspeed safety means for fuel injection pumps of internal comb
Overspeed/overheat circuit with a latch for capacitive ignition
Oxidation catalyst coating in a heat exchanger
Oxidizer-referenced fuel supply system