the device being a servo-motor, e.g. using engine intake air pressure or vacuum

Full Title

Low-pressure fuel-injection apparatus > characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of injectors > the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air > the device being a servo-motor, e.g. using engine intake air pressure or vacuum

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Subclass:

SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF