Passively variable plenum volume for a vehicle intake...
PCV flow regulator
Peak cylinder combustion pressure ignition spark timing system
Perfect fuel gasification device for use in combination with a c
Photoelectric breakerless distributor
Plastic intake manifold assembly with hollow resonance chamber s
Pneumatic control apparatus for internal combustion
Pneumatic control system and pressure responsive valve assembly
Pneumatic pressure control valve assembly
Pneumatically controlled fuel injection system
Pollutant emission control system and a combined electric switc
Pollution control arrangements for engines
Pollution control device
Pollution reducing and fuel saving device
Pollution reducing and fuel saving device
Port system, especially an induction manifold for an...
Positive crank case ventilation valve and internal combustion en
Positive crankcase ventilation system
Post carburetor atomizer
Power and deceleration governor for automotive engines