US 12,259,081 B2
Thermal insulating sleeve liner for fluid flow device and fluid flow device incorporating such liner
Luc David Vernhes, Hampstead (CA); Fadila Khelfaoui, Montreal (CA); Alfredo Vincenzo Costantini, Laval (CA); and Duc Thanh Tran, Montreal (CA)
Assigned to VELAN INC., Montreal (CA)
Appl. No. 17/484,369
Filed by VELAN INC., Montreal (CA)
PCT Filed Mar. 12, 2020, PCT No. PCT/IB2020/052256
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/194106, PCT Pub. Date Oct. 1, 2020.
Claims priority of provisional application 62/823,357, filed on Mar. 25, 2019.
Prior Publication US 2022/0252206 A1, Aug. 11, 2022
Int. Cl. F16L 59/147 (2006.01); F16L 59/02 (2006.01); F16L 59/06 (2006.01); F16L 59/14 (2006.01); F16L 59/16 (2006.01)
CPC F16L 59/147 (2013.01) [F16L 59/021 (2013.01); F16L 59/06 (2013.01); F16L 59/143 (2013.01); F16L 59/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermal insulating sleeve liner configured for use in a fluid flow device subjected to cyclic extreme thermal shock, for being installed within a fluid flow bore of the fluid flow device comprising a valve with flanged pipe connectors, and for being installed within at least one of the flanged pipe connectors of the valve, said configured thermal insulating sleeve liner comprising:
an additively manufactured monolithic hollow cylindrical metallic sleeve having an outer diameter sized to slide into a fluid flow path bore of a fluid flow device thereafter accommodating a fluid flow path there-within, said metallic sleeve having two spaced-apart cylindrical shells and an internal infill pattern of integrally formed supporting structure there-between including internal interstices providing increased thermal resistance to heat flowing from inside the sleeve to outside the sleeve.