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Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Usefulness of max torque curve numbers related to snowblowers.

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Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328

Usefulness of max torque curve numbers related to snowblowers.
Original Message   Jan 8, 2011 8:07 am

It’s confusing the way torque and power are talked about.  Maybe someone can square me away?  The confusion is people referencing max torque of engines from torque curves.

 

Related to snowblowers only.  The following are not statements of fact.  They are my understanding.

 

Torque is the guy that tosses the snow, the lifting energy.   Power (speed) is also a factor.  Together they make up the needed elements for throughput related to torque (how much can be gobbled up) and power (distance of toss from engine/impeller speed). 

 

Torque and power have to be considered together at the useful “range” which for a snowblower is max throttle, max RPM.  For the RPM part that is max under load so 3600 drooping to ?? unsure but a guess 3000. 

 

People talk about how much torque is available for a given engine and those figures usually reference torque curves. Referencing torque curves seems useless for a snowblower because it’s never operated in the range of RPM where max torque happens.   Any references to these numbers for a snowblower are meaningless.

 

The only part of a torque curve that is the meaningful for snowblowers is the far end (not max torque from the curve) and that happens at 3000 to 3600 (the far end).   

 

Is the above right?  Max torque from curves is not useful for a snowblower.  It’s what is at the far end of the curve that is meaningful for snowblowers.  The 3000 to 3600 section of the curve.  No one runs their engine at 2400 RPM. 

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