Druckumschaltpumpe
English translation: two-stage pump
| 10:26 Feb 21, 2010 |
| German to English translations [PRO] Tech/Engineering - Mechanics / Mech Engineering | |||||||
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|  Selected response from: Bernd Runge Germany Local time: 18:14 | ||||||
Grading comment
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| Summary of answers provided | ||||
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| 4 | alternating (or: variable) pressure pump |
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| 3 | pressure switch pump |
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| 3 | two-stage pump |
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| Discussion entries: 1 | |
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Answers
6 mins confidence: 
pressure switch pump Explanation: ...would be my suggestion http://209.85.129.132/search?q=cache:MRFq7cho7d0J:www.bellgo... Reference: http://docs.google.com/viewer?a=v&q=cache:Q-LN8kJCSX8J:www.a... Reference: http://docs.google.com/viewer?a=v&q=cache:o2RLWrpRmbcJ:www.m... |
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1 hr confidence:
two-stage pump Explanation: A typical backyard log splitter has: •A 5-horsepower gasoline engine •A two-stage hydraulic oil pump rated at a maximum of 11 gallons per minute (3 gpm at 2,500 psi) •A 4-inch-diameter, 24-inch-long hydraulic cylinder •A rated splitting force of 20 tons •A 3.5-gallon hydraulic oil tank A two-stage pump is an ingenious time-saver. The pump actually contains two pumping sections and an internal pressure-sensing valve that cuts over between the two. One section of the pump generates the maximum gpm flow rate at a lower pressure. It is used, for example, to draw the piston back out of a log after the log has been split. Drawing the piston back into the cylinder takes very little force and you want it to happen quickly, so you want the highest possible flow rate at low pressure. When pushing the piston into a log, however, you want the highest possible pressure in order to generate the maximum splitting force. The flow rate isn't a big concern, so the pump switches to its "high pressure, lower volume" stage to split the log. http://www.howstuffworks.com/hydraulic.htm/printable |
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7 hrs confidence:
alternating (or: variable) pressure pump Explanation: alternating pressure pump or variable pressure pump hope this is helpful, good luck on your translation |
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