Ejector device
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United States of America Patent
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Jul 16, 1996
Grant Date -
N/A
app pub date -
Nov 8, 1994
filing date -
Nov 11, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A vacuum sewer system comprises a liquid-driven ejector, the working medium of which is fed to the ejector by a circulation pump from a sewage collecting container, the suction side of the ejector being connected via a check valve to a vacuum sewer network. Air and sewage delivered through the sewer network flow through the ejector into the collecting container. The bore of the discharge pipe of the ejector is substantially cylindrical throughout. Its length is 8 to 20, preferably 10 to 15, times the diameter of its bore and the pipe discharges directly into the open interior of the collecting container.
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