PaulW_NJ said: (quoted from post at 19:18:36 12/17/09) I don't know much about hydraulics, but working in oil refineries for 25 years, if we had a pump that put out more flow than we needed, we simply installed a bypass, or kick-back loop. That is, installing a line from the pump discharge back to the low pressure side, with a needle valve in between. That way you could control whatever flow you wanted: the more you kicked-back, the lower the net output. Easier to correct too big a flow, than not enough.
Maybe you could try that . . . .
This will work to a certain extent.... as pressure in the system increases due to load on the snow blower, the by-pass flow will also increase... higher load= higher pressure (up to the 2000psi relief valve pressure)= more flow by-passed= less flow to the blower= slower blower speed... not what you need. If you have more flow than you need (not what I believe to be the case here, but don't know enough about the system to say for sure) there are pressure compensated flow controls available, but at higher cost. Been retired 7 years and don't remember the companies that made them, but should be several. We made them at one time (Cessna), but a lot of the good stuff went down the tubes when Eaton bought us in the late '80s.
This post was edited by IH fan at 21:04:15 12/17/09.
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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