公开(公告)号：US11578829B2

公开(公告)日：2023-02-14

申请号：US16738873

申请日：2020-01-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher A. Sanchez

IPC: F16L39/00 ,  F01D5/18 ,  F02C7/22 ,  F16L9/19 ,  F23R3/28 ,  F02C7/055 ,  F23R3/00

Abstract: A fitting for forming a double-walled tube includes an inner fitting having a first inner weld lip, a second inner weld lip, and an inner body extending from the first inner weld lip to the second inner weld lip and having an outer surface with a first threading. The fitting also includes an outer fitting having a first outer weld lip, a second outer weld lip, and an outer body extending from the first outer weld lip to the second outer weld lip and having an inner surface with a second threading that is configured to mate with the first threading.

公开(公告)号：US20200149671A1

公开(公告)日：2020-05-14

申请号：US16738873

申请日：2020-01-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher A. Sanchez

IPC: F16L39/00 ,  F01D5/18 ,  F02C7/22 ,  F16L9/19 ,  F23R3/28

Abstract: A fitting for forming a double-walled tube includes an inner fitting having a first inner weld lip, a second inner weld lip, and an inner body extending from the first inner weld lip to the second inner weld lip and having an outer surface with a first threading. The fitting also includes an outer fitting having a first outer weld lip, a second outer weld lip, and an outer body extending from the first outer weld lip to the second outer weld lip and having an inner surface with a second threading that is configured to mate with the first threading.

公开(公告)号：US20180372255A1

公开(公告)日：2018-12-27

申请号：US15631809

申请日：2017-06-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher A. Sanchez

IPC: F16L39/00 ,  F23R3/28 ,  F02C7/22 ,  F16L9/19

CPC classification number: F16L39/005 ,  F01D5/18 ,  F02C7/055 ,  F02C7/22 ,  F16L9/20 ,  F16L2201/30 ,  F16N2210/02 ,  F23R3/002 ,  F23R3/283

Abstract: A fitting for forming a double-walled tube includes an inner fitting having a first inner weld lip, a second inner weld lip, and an inner body extending from the first inner weld lip to the second inner weld lip and having an outer surface with a first threading. The fitting also includes an outer fitting having a first outer weld lip, a second outer weld lip, and an outer body extending from the first outer weld lip to the second outer weld lip and having an inner surface with a second threading that is configured to mate with the first threading.

公开(公告)号：US10571062B2

公开(公告)日：2020-02-25

申请号：US15631809

申请日：2017-06-23

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher A. Sanchez

IPC: F16L39/00 ,  F01D5/18 ,  F02C7/22 ,  F16L9/19 ,  F23R3/28 ,  F02C7/055 ,  F23R3/00

Abstract: A fitting for forming a double-walled tube includes an inner fitting having a first inner weld lip, a second inner weld lip, and an inner body extending from the first inner weld lip to the second inner weld lip and having an outer surface with a first threading. The fitting also includes an outer fitting having a first outer weld lip, a second outer weld lip, and an outer body extending from the first outer weld lip to the second outer weld lip and having an inner surface with a second threading that is configured to mate with the first threading.

公开(公告)号：US11660711B2

公开(公告)日：2023-05-30

申请号：US16433389

申请日：2019-06-06

Applicant: United Technologies Corporation

Inventor： Pawel Kaniowski ,  Piotr Kaczor ,  Robert Wozniak ,  Wangen Lin ,  Christopher A. Sanchez

IPC: B23K37/053 ,  B23K37/02 ,  B23K9/16 ,  B23K9/028 ,  B23K9/00 ,  B23K101/04

CPC classification number: B23K37/0536 ,  B23K9/0026 ,  B23K9/0282 ,  B23K9/0288 ,  B23K9/16 ,  B23K37/027 ,  B23K37/0276 ,  B23K2101/04

Abstract: A process of welding fittings to ends of a double wall pipe comprising forming a first welded joint between an inner pipe and an inner receiver of a first fitting; forming a second welded joint between an outer pipe and an outer receiver of the first fitting; forming a third welded joint between the outer pipe and an outer receiver of a second fitting; and forming a fourth welded joint between the inner pipe and an inner receiver of the second fitting.

公开(公告)号：US20180066781A1

公开(公告)日：2018-03-08

申请号：US15255813

申请日：2016-09-02

Applicant: United Technologies Corporation

Inventor： Christopher A. Sanchez

IPC: F16L39/00 ,  B23K31/02 ,  F01D25/18

CPC classification number: F16L39/005 ,  B23K31/027 ,  B23K2101/06 ,  F01D25/183 ,  F05D2220/32 ,  F05D2230/232 ,  F05D2260/98 ,  F16L23/026

Abstract: Disclosed is a method for constructing a double walled tube assembly, comprising: welding a first axial end of a first tube to a first sub-fitting of a first fitting, sliding a second tube over the first sub-fitting and the first tube, sliding a second sub-fitting of the first fitting over the first sub-fitting such that the first and second sub-fittings are co-axial, welding a first axial end of the second tube to the second sub-fitting, and welding the second sub-fitting to the first sub-fitting. An assembly includes a first fitting that includes a first sub-fitting and a second sub-fitting, a first tube having a first axial end that is welded to the first sub-fitting, and a second tube having a first axial end that is welded to the second sub-fitting, where the first tube is nested within the second tube, where the first sub-fitting is welded to the second sub-fitting.