Propulsion machine comprising a sealing module
AssigneeROLLS-ROYCE plc
InventorJack F Colebrooke
Life of this patent
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Abstract
There is provided a propulsion machine 10 comprising a fluid duct defined by a wall 42, 44 and a moveable member 34, 36 with a sealing module 90, 90′ therebetween. The moveable member 34, 36 is moveable relative to the wall 42, 44. The sealing module 90, 90′ comprises a mounting structure 92 coupled to the moveable member 34, 36 and an extendable structure 94 having a sealing surface 96. A chamber 98 is defined between the mounting structure 92 and the extendable structure 94 throughout a travel of the extendable structure 94 relative to the mounting structure 92. The sealing module 90, 90′ is configured to receive a pressurized actuation fluid into the chamber 98 to load the sealing surface 96 against an opposing surface 43 of the wall 42, 44 to provide a seal with the opposing surface 43.
Claims14
A propulsion machine comprising:
- a fluid duct defined by a wall and a moveable member with a sealing module therebetween, the moveable member being moveable relative to the wall, wherein:
- the sealing module comprises a mounting structure coupled to the moveable member and an extendable structure having a sealing surface;
- the extendable structure is movable relative to the mounting structure through a travel of the extendable structure, and a chamber is defined therebetween throughout the travel;
- the extendable structure is hingedly mounted to the mounting structure about a pivot axis;
- and
- the sealing module is configured to receive a pressurized actuation fluid into the chamber to actuate movement of the extendable structure about the pivot axis and load the sealing surface against an opposing surface of the wall to provide a seal with the opposing surface throughout the travel.
Dependencies are inferred from the claim text.