Sickleless internal gear wheel pump with sealing elements inserted into the tooth tips
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 14, 2001
Grant Date -
N/A
app pub date -
Mar 13, 2000
filing date -
Mar 26, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sickleless gear wheel pump includes an internally geared hollow wheel including a plurality of tooth tips. A pinion includes a plurality of tooth tips and meshes with the hollow wheel. The hollow wheel and pinion are rotatably disposed in a housing. The housing has a suction connection and a pressure connection. The hollow wheel has openings for a medium to be pumped therethrough. Each tooth tip of the plurality of tooth tips of the hollow wheel has a profile groove in which there is present a sealing element that is radially moveable during rotation of the hollow wheel and pinion and which is in sliding seal-off engagement with a respective tooth tip of the plurality of tooth tips of the pinion. Each sealing element is metallic.
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