CARTRIDGE SEAL
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United States of America Patent
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N/A
Issued Date -
Apr 15, 2010
app pub date -
Oct 12, 2006
filing date -
Oct 12, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A seal cartridge for providing a fluid seal between a rotating shaft and a housing such as found in a centrifugal pump. The seal cartridge includes rotating and non-rotating seal portions. The non-rotating seal portion includes a seal ring seat that is connected to the support sleeve by a frangible element. During installation, the frangible element is separated to release the non-rotating portion of the seal from the support member. The non-rotation seal portion includes an O-ring held by a stationary seal holder. An O-ring seal seals a circumferential periphery of the seal ring to inhibit fluid leakage between the holder and the seal ring. An inside radial end face of the seal ring abuttingly engages a radial end face defined by the holder which enhances heat transfer between the seal ring and the holder. A plurality of grooves or recesses are formed in either the inside end face of the seal ring or the radial end face of the holder and are arranged to receive cooling fluid from the pump housing to further promote cooling of the seal.
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