RU2000114173A - C-RING - Google Patents

Claims (10)

1. A seal containing the first and second axially opposite loops, permanently connected together by a coextensive jumper in a common ring having an annular slot, where the first loop has an arched cross section with outer and radially inner sealing portions, the second loop has an arched cross section with an outer and radially inner sealing portions, and a jumper is located in the radial direction between said outer and inner portions of the first and second loops.  2. The seal according to claim 1, wherein the first and second loops are axially convex outward and spaced axially apart from each other, with a jumper passing between them in the axial direction.  3. The seal according to claim 2, in which the jumper is spaced radially outward from said first and second inner sections and in a radial direction inward from said first and second outer sections.  4. The seal according to claim 3, in which the jumper is permanently connected to the first and second internal sections.  5. The seal according to claim 3, in which the first and second loops are semicircular.  6. The seal of claim 3, wherein the first and second loops and jumper are made of sheet metal.  7. The seal according to claim 3, further comprising a first annular element forming a fluid channel, and having an axially directed first annular groove into which the first loop enters with a sliding contact, and a second annular element coaxially disposed with the first element and having an axially facing second annular groove into which a second loop enters with a sliding contact.  8. The seal according to claim 7, in which the first and second elements are spaced axially from each other in its first and second grooves, and the jumper extends axially between them.  9. The seal according to claim 8, in which the jumper has a cross section concave radially inward to allow differential radial movement between the first and second elements without mutual influence between them.  10. The seal according to claim 9, in which the first element is the outer shell of the combustion chamber of the gas turbine engine for the passage of hot gaseous products of combustion and the second element is the outer clamp of the nozzle apparatus of the turbine of the gas turbine engine, hermetically connected to the outer shell by means of an o-ring for eliminate differential radial and axial movements between them due to gaseous products of combustion.