FUEL SYSTEM OF MULTICYLINDER INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC F02D17/02 

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention relates to automatic control of internal combustion engines. Proposed fuel system of multicylinder internal combustion engine contains two intake pipelines connected to groups of disconnectable and non-disconnectable cylinders, carburetor with fuel channels, main metering and idling system and two mixing chambers, each communicating with one of pipelines, throttle valves of carburetor arranged, one in each chamber and installed on shaft coupled with throttle valve drive lever and with accelerator pedal, working mixture enrichment unit with mechanical economizer and accelerating pump provided with atomizer, and supply source. Electromagnetic valve controlled through microswitch is installed in channel of main metering system of second mixing chamber before full-power jet. Throttle valves are operated by bellcrank. One end of bellcrank is connected with accelerator pedal other end, with stop screw which is stop of microswitch contact.

EFFECT: improved reliability and increased economy of engine at idling and partial-load operation of disconnection of separate cylinders.

2 dwg