Sizieng a Hydrolic Motor to Power a Lawn Vac Blower: Tractor Implements  -- Tractor Attachments Implements 3ph Discussion Forum and Review Sizieng a Hydrolic Motor to Power a Lawn Vac Blower: Tractor Implements -- Tractor Attachments Implements 3ph Discussion Forum

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 03-03-2001, 05:40 Post: 24947
Don



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 Sizieng a Hydrolic Motor to Power a Lawn Vac Blower

How do I size my tractor Hydrolic pump (5.6 gal/min @ 2000 psi) to power a 15" dia. 5" high fins (It will produce 2000 cfm at 3750 rpm's)Also Im interested in building ideas for a 3 point hitch lawn vac. thanks






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 03-05-2001, 13:55 Post: 25053
Murf

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 Sizieng a Hydrolic Motor to Power a Lawn Vac Blower

As an Engineer I can tell you the formulae is rather complex, and probably more than the average person wants to tackle. However, the short answer is to find a similar-sized gas-powered blower and look at what hp the drive engine is, then just ask the hydraulic supplier for an engine that puts out a similar power. As a word of caution though, hyd. motors become less efficient at higher speeds, which is what you want for a blower, you need to either, run more power and gear the blower to run faster than the motor, or try another power supply, such as belt driven from the engine. Best of luck.






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 03-06-2001, 09:45 Post: 25081
Art White



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 Sizieng a Hydrolic Motor to Power a Lawn Vac Blower

For what I know you have the ability to run about what a 3 horsepower motor would. I think you are a little short by about 1/2 of what you need. I also don't think it would work for long unless you more than doubled your hydaulic resivior in order to allow the oil to cool.






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