Mechanical seal assembly
AssigneeAES Engineering Ltd.
InventorAndrew Parkin
Life of this patent
Estimating the term…
Abstract
A mechanical seal assembly has two axially-spaced apart seals and including a rotary component that includes rotational members of each axially-spaced apart seal and a stationary component that includes stationary sealing members of each seal. A sleeve is located radially inwards of the rotational sealing members. An element, such as fluid ports, directs barrier or buffer fluid towards the sleeve and between the two axially-spaced apart seals. The sleeve is provided on its outer surface with means, such as recesses or protuberances, which displace barrier/buffer fluid axially towards both axially-spaced apart seals.
Claims9
A mechanical seal apparatus having two axially-spaced seals, comprising:
- a rotary component comprising at least one rotational member for each axially-spaced seal of said two axially-spaced seals;
- a stationary component comprising at least one stationary sealing member of each said axially-spaced seal of said two axially-spaced seals;
- a sleeve located radially inwards between said at least one rotational member for each said axially-spaced seal of said two axially-spaced seals;
- and,
- means for directing barrier or buffer fluid towards said sleeve between said two axially-spaced seals, wherein said sleeve has on its outer surface means for displacing the barrier or buffer fluid axially toward said two axially-spaced seals.
Dependencies are inferred from the claim text.