Gas-venting domestic hot water circulation pump
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United States of America Patent
Stats
-
Nov 21, 2000
Grant Date -
N/A
app pub date -
May 24, 1999
filing date -
May 20, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
When a hot water supply line has to be filled with hot water at all times it requires that the contents of the hot water supply line has to be returned to the hot water heater by a circulator pump. When gas-bubbles form in the hot water supply line, they tend to form a bubble in the suction area of the pump impeller, which leads to an interruption of the flow. In order to prevent this, a circulator pump is used which has a calming chamber in which some of the gases separate, the rest of the air is moved into the spiral channel around the impeller due to an eccentricity of the vortex inside of the impeller. Finally also this gas stream flows into the calming chamber from where the gases leave through a venting valve.
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Family
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Cited Art Landscape
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