Hydraulic seal arrangement
AssigneeROLLS-ROYCE plc
InventorColin YOUNG
Life of this patent
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Abstract
A hydraulic seal arrangement for a rotating machine, the hydraulic seal arrangement comprising: an annular housing around a shaft having an axis of rotation, the shaft and the annular housing being relatively rotatable; the annular housing further comprising a sealing fluid zone at a radially outer portion of the housing; a fin extending radially from the shaft into the annular housing, at least a portion of the fin extending radially into the sealing fluid zone; wherein sealing fluid is centrifugally accelerated, in use, before being directly introduced into the sealing fluid zone by a sealing fluid inlet, to generate a swirl component upon introduction.
Claims16
A hydraulic seal arrangement for a rotating machine, the hydraulic seal arrangement comprising:
- an annular housing around a shaft having an axis of rotation, the shaft and the annular housing being relatively rotatable;
- the annular housing further comprising a sealing fluid zone at a radially outer portion of the housing;
- a fin extending radially from the shaft into the annular housing, at least a portion of the fin extending radially into the sealing fluid zone;
- wherein sealing fluid is centrifugally accelerated, in use, before being directly introduced into the sealing fluid zone by a sealing fluid inlet, to generate a swirl component upon introduction therein.
A hydraulic seal arrangement for a rotating machine, the hydraulic seal arrangement comprising:
- an annular housing around a shaft having an axis of rotation, the shaft and the annular housing being relatively rotatable;
- the annular housing further comprising a sealing fluid zone at a radially outer portion of the housing;
- a fin extending radially from the shaft into the annular housing, at least a portion of the fin extending radially into the sealing fluid zone;
- wherein sealing fluid is centrifugally accelerated, in use, to a circumferential velocity or tangential speed which is at least substantially equivalent to either or both of the circumferential velocity or tangential speed of the sealing fluid inlet, before being directly introduced into the sealing fluid zone by a sealing fluid inlet configured to generate a swirl component within the sealing fluid zone upon introduction of the sealing fluid therein.
Dependencies are inferred from the claim text.