FIELD: internal combustion engines.
SUBSTANCE: invention can be used in internal combustion engines. Engine (12) system (10) comprises aspirator (80) with a suction outlet in aspirator (80) neck, a suction outlet in the expanding conical nozzle of the aspirator, and a suction outlet in a straight tube downstream of the expanding conical tube. Aspirator inlet (80) is connected to the atmosphere, and the outlet of mixed aspirator (80) flow is connected to a vacuum source. Suction outlet in the throat and the suction outlet in the straight tube are connected to the vacuum tank (38) through parallel suction channels, which are connected to a single channel downstream of the vacuum source. Suction outlet in the expanding conical branch pipe is connected to fuel vapor reservoir (63). Shut-off valve is located in each channel. Invention discloses versions of described method for engine.
EFFECT: technical result consists in increased vacuum, intensity of the suction flow.
19 cl, 13 dwg
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