KRAFTSTOFFFOERDERAGGREGAT

A regenerative pump is proposed which serves in particular for conveying fuel to a fuel supply system for internal combustion engines. The pump comprises an impeller (1) which is rotatably mounted in a pump housing (3), the outer circumferential area of which impeller has blades forming blade groove...

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Bibliographic Details
Main Authors KEMMNER,ULRICH, BASSLER,HELMUT
Format Patent
LanguageGerman
Published 14.02.1985
Edition3
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:A regenerative pump is proposed which serves in particular for conveying fuel to a fuel supply system for internal combustion engines. The pump comprises an impeller (1) which is rotatably mounted in a pump housing (3), the outer circumferential area of which impeller has blades forming blade grooves (21). A first characteristic geometric feature for obtaining optimum pump dimensions is the value Rm = SL which should lie within a range of 0.4 to 2 mm. At the same time, S signifies the cross-sectional area enclosed between the conveying channel wall (22, 24) and the impeller circumference (5, 6, 7, 8) and L signifies the circumferential length (5, 6, 7, 8) of the impeller (1) dipped into the conveying channel (2). A second characteristic geometric feature Rs = B/E and a third characteristic geometric feature Ra = A2/A1 of the pump should lie within a range of 0.5 to 1.5. Here, B is the axial width of the impeller (1), E is the radial blade height of the impeller (1), A1 is the sum of the two partial surfaces of the cross-sectional area S extending to the side of the impeller (1) and A2 is the remaining partial area of the cross-sectional area S.
Bibliography:Application Number: DE19833327922