having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages

Full Title

Low-pressure fuel-injection apparatus > characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines > having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages

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

Child Classifications

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• F02M 69/38 using fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device
• F02M 69/4 using variably controlled air pressure, e.g. by modifying the intake air vacuum signal acting on the fuel metering device
• F02M 69/42 using other means than variable fluid pressure, e.g. acting on the fuel metering device mechanically or electrically