Back to results
US 5,718,436 AGranted
Flow controller for mechanical seal protection
OwnerJoseph R. Dunfordinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerJoseph R. Dunfordinventor
Estimating the term…
A flow controller or seal protector is positioned in a seal cavity of rotary fluid equipment to protect the shaft and seal from the effects of abrasives and entrained air. The protector has an annular ring member that is secured to the shaft for rotation therewith. A cylindrical member extends into the cavity from the outer peripheral edge of the ring member and in close surrounding proximity to the seal. At its free or open end the cylindrical member has an outwardly flared portion and flow inducing protrusions are provided adjacent that open end to help impart rotational flow to fluid moving within the seal cavity. Flow inducing vanes or vents may also be provided within the protector at the junction of the ring and cylindrical members. Heavy abrasives are moved along the interior of the protector to exit at the free end and to then be centrifuged outwardly and away from the seal. Air is centrifuged inwardly towards the back of the seal where it will do no harm.
A seal cavity protector for use with rotary fluid equipment, a seal cavity of which is defined by a rotary shaft having an axis, a shaft housing surrounding at least a portion of the shaft, and seal means engaging the shaft, said protector comprising:
A seal cavity protector for use with rotary fluid equipment, a seal cavity of which is defined by a rotary shaft having an axis, a tapered shaft housing surrounding at least a portion of the shaft, and seal means engaging the shaft, said protector comprising:
A seal cavity protector for use with rotary fluid equipment, a seal cavity of which is defined by a rotary shaft having an axis, a shaft housing surrounding at least a portion of the shaft, and seal means engaging the shaft, said protector comprising:
Dependencies are inferred from the claim text.