COMMON SHUTOFF VALVE FOR VACUUM DRIVE AT LOW ENGINE LOADS AND VACUUM VAPOUR BLOWDOWN VACUUM DURING ENGINE FORCING Russian patent published in 2019 - IPC F02M25/08 F02D23/00 F02D41/04 

Abstract RU 2701247 C2

FIELD: internal combustion engines.

SUBSTANCE: group of inventions relates to use of stored fuel vapours in an engine. Essence of inventions consists in that vacuum is created by means of ejector located in compressor recirculation channel, and an aspirator located in the throttle bypass channel, in which the ejector suction hole is connected to the adsorber purge valve with two outlets. In one example, the purge valve of the adsorber can contain only one flow limiter, the flow limiter is located in the channel connecting the purging fuel vapour system to the inlet manifold when the solenoid of the purge valve of the absorber is open, so that the channel connecting the purging fuel vapour system with the ejector inlet hole does not contain any flow restrictions upstream relative to the suction hole.

EFFECT: technical result is higher suction efficiency in engine with supercharging.

20 cl, 11 dwg

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RU 2 701 247 C2

Authors

Persifull Ross Dikstra

Ulrej Dzhozef Norman

Dates

2019-09-25Published

2015-12-24Filed