FIELD: internal combustion engines.
SUBSTANCE: invention can be used in the internal combustion engines fuel supply systems. Disclosed are systems and methods of improving blowing of fuel vapour catch canister for engine with supercharging. One of methods involves removal of blowing of accumulated fuel vapours from fuel vapour catching can 122 to compressor inlet 114 through ejector 180, bypassing canister purging valve 163, wherein ejector 180 is hydraulically communicated with fuel vapour collection canister 122 via separate channel 156, and ejection flow is controlled by shut-off valve through ejector 185. Shut-off valve is temporarily closed in response to depressing the accelerator pedal by the driver to stop the blowdown.
EFFECT: invention allows purging fuel vapours from fuel canisters both at engine operation with supercharging and without supercharging, to improve fuel economy and engine standards by toxicity.
20 cl, 11 dwg
