A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The effctiveness of cutting away a portion of one of the teeth in a gear pump to produce a pressure pulse has been investigated. Dimensional analysis has been used in order to illustrate the expected effect on volumetric efficiency, and measurements have been taken in order to quantify this effect. It is shown that the leakage remains viscous in nature. Over a speed range of 700 to 1760 rev/min and pressure up to 7.0 MPa, it has been found that the leakage rate is increased up to a factor of 2.65 and the overall efficiency reduced by some 5%. It is considered, however, that the pulse could provide a reciprocating motion of low frequency to a grader in order to improve its earth moving capacity, the circuit to do this also being postulated.
The effctiveness of cutting away a portion of one of the teeth in a gear pump to produce a pressure pulse has been investigated. Dimensional analysis has been used in order to illustrate the expected effect on volumetric efficiency, and measurements have been taken in order to quantify this effect. It is shown that the leakage remains viscous in nature. Over a speed range of 700 to 1760 rev/min and pressure up to 7.0 MPa, it has been found that the leakage rate is increased up to a factor of 2.65 and the overall efficiency reduced by some 5%. It is considered, however, that the pulse could provide a reciprocating motion of low frequency to a grader in order to improve its earth moving capacity, the circuit to do this also being postulated.
Pressure pulses for earth movers
Druckstoesse bei Erdbewegungsmaschinen
Akers, A. (author)
1983
6 Seiten, 8 Bilder, 3 Quellen
Conference paper
English
German track-laying earth movers
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