Process and apparatus for fuel-mixture preparation

Process and apparatus for the stabilization of the period of ope

Process for the regulation of the optimum operational behavior o

Pulse smoothing circuit for an electronic fuel control system

Pulse time addition circuit for electronic fuel injection system

Pulse-actuated fuel-injection spark plug

Reciprocating stratified charge internal combustion engine and m

Reducing noxious components from the exhaust gases of internal c

Regulating arrangement for internal combustion engines, especial

Residual gas control apparatus for internal combustion engines h

Rich core stratified charge spark ignition engine with periphera

Rich-core stratified charge spark ignition engine with rich mixt

Rotary internal combustion engine employing compression ignition

Rotary machine and thermal cycle

Rotating cup fuel injector

Rotational speed detecting apparatus for electronically-controll

Roughness sensor

Short duration fuel pulse accumulator for engine fuel injection

Side valve internal combustion engine

Signal amplification means