FIELD: process engineering.
SUBSTANCE: chain saw is driven by ICE. Said ICE has cylinder with piston engaged with crankshaft. Piston top surface stays at distance D from crankshaft central axis. Said distance D is measured in the line of cylinder with piston in its TDC. Chain saw is equipped with front handle. Central axis of said front handle is located at distance B from crankshaft central axis in the of axis perpendicular to horizontal plane. The latter is defined as plane whereon chain saw may thrust in idle vertical position. Besides chain saw, comprises throttle handle. Rear end of the latter is located at distance C from crankshaft central axis in the line of that parallel with horizontal plane. Engine cylinder is tilted backward. Angle between cylinder lengthwise axis and that perpendicular to horizontal plane varies between 5 and 45 degrees. To allow using low front handle, chain saw features basic design whereat B/D ratio is smaller than or equal to 1.7.
EFFECT: improved ergonomics and controllability.
16 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CHAIN SAW | 2009 |
|
RU2509644C2 |
| COOLING AIR FEED TO MOTOR CHAIN SAW | 2009 |
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| FOUR-STROKE ENGINE, AND WORKING MACHINE USING IT | 2011 |
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RU2675132C2 |
| SILENCER AND MOTOR DRIVEN WORKING MACHINE | 2012 |
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RU2606549C2 |
| FOUR-STROKE ENGINE, BUSH CUTTER AND MOTORISED TOOL EQUIPPED WITH SUCH ENGINE | 2010 |
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| TWO-STROKE INTERNAL COMBUSTION ENGINE WITH SPHERICAL CHAMBER | 2014 |
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RU2698622C2 |
| INTERNAL COMBUSTION ENGINE | 2012 |
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RU2558178C2 |
| MANUAL ICE-DRIVEN TOOL | 2010 |
|
RU2528232C2 |
| PORTABLE MOTOR SAW | 0 |
|
SU1794650A1 |
