COOLING AIR FEED TO MOTOR CHAIN SAW Russian patent published in 2014 - IPC B27B17/00 B23D57/02 B23Q11/10 

Abstract RU 2527553 C2

FIELD: process engineering.

SUBSTANCE: invention relates to portable motor chain saw. Saw case accommodates chain saw drive, saw chain displacing around guide bus. Said drive comprises ICE with crankshaft arranged perpendicular to saw lengthwise axis. Saw drive sprocket is fitted at one end of said drive and engine cooling fan impeller is fitted on opposite end. Cold airflow from cooling fan flow perpendicular to saw lengthwise axis, over ICE cylinder located between drive sprocket and said fan. Cold airflow escapes through case opening. Besides, pipe-like handle is arranged around ICE housing perpendicular to saw lengthwise axis and aligned with guide rail arranged between pipe-like handle and guide bus end. Guide rail end is fitted nearby case opening for cold airflow discharge. Air guide is located nearby said opening and secured at guide rail end or made integral therewith.

EFFECT: better cooling of silencer.

10 cl, 4 dwg

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RU 2 527 553 C2

Authors

Junginger,Vol'Fgang

Dates

2014-09-10Published

2009-11-02Filed