MULTI-CYLINDER INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

Abstract RU 2090765 C1

FIELD: manufacture of engines; multi-cylinder fuel-injection engines. SUBSTANCE: engine has receiver mounted in intake system. Receiver is provided with rotary spool valve 17 whose lateral sides are provided with ports 19 thru 22 whose position is related with intake holes 2 of intake branch pipes 6 thru 9 depending of firing order of cylinders 23. Innovation of invention consists in material of spool valve 17: spool valve 17 is made from gas-permeable sound-absorbing material. Invention includes several versions of manufacture of engine. EFFECT: enhanced efficiency of sound absorbing in wide range of speeds. 3 cl, 3 dwg

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RU 2 090 765 C1

Authors

Fesin M.I.

Sokolov A.V.

Dates

1997-09-20—Published

1994-12-13—Filed