公开(公告)号：JP2000028141A

公开(公告)日：2000-01-25

申请号：JP16034799

申请日：1999-06-08

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KORZENDORFER JOHN J ,  MELMAN JEFFREY D ,  GOETSCHIUS ALAN J

IPC: F23R3/30 ,  F23C7/00 ,  F23D14/02 ,  F23D14/22 ,  F23R3/28

Abstract: PROBLEM TO BE SOLVED: To provide a premixed fuel injector in which different size changes due to a thermal expansion can be allowed. SOLUTION: An insert 40 is solidly fixed at a shell 38 of a centerbody 32. A fuel supply tube 42 is solidly brazed with the shell 38. The tube 42 is spirally bent in order to allow different size changes. Since there is no slip between the shell 38 and the insert 40, a leak due to abrasion does not occur, thus secondary air is correctly supplied. When the shell 38 is expanded against the tube 42, since the insert 40 does not retreat into the inside of the shell 38, a state in which flame flows into the inside of the shell 38 can be prevented. The curve of the shell 42 is set so that the natural frequency thereof becomes considerably larger than the frequency that is received during the time of operation of an engine.

公开(公告)号：GB2332743A

公开(公告)日：1999-06-30

申请号：GB9828231

申请日：1998-12-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COUGHLAN JOSEPH D ,  GOETSCHIUS ALAN J

IPC: F23C7/00 ,  F23R3/14 ,  F23R3/16

Abstract: A swirler 50 for a gas turbine engine combustor (10) has an outer wall 54, groupings 52 of vanes 42 attached to the outer wall, a centrebody 60 mechanically decoupled from the outer wall via the groupings of vanes so that the swirler can accommodate differential rates of thermal growth between the outer wall and the inner centrebody and vanes. The centrebody may be attached to one of the groupings of vanes (Fig 6) to keep the centrebody from vibrating, or may remain unattached to all the groupings. The centrebody may be formed from the body 60 and ring 62 which may be welded together (Fig 6). The swirler may be formed from an existing swirler with a centrebody by a process also disclosed.

公开(公告)号：BR9805804A

公开(公告)日：2001-03-13

申请号：BR9805804

申请日：1998-12-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COUGHLAN JOSEPH D ,  GOETSCHIUS ALAN J

IPC: F23C7/00 ,  F23R3/14 ,  F23R3/16

Abstract: A swirler 50 for a gas turbine engine combustor 10 has an outer wall 54, groupings 52 of vanes 42 attached to the outer wall, a centerbody 60 mechanically decoupled from the outer wall via the groupings of vanes so that the swirler can accommodate differential rates of thermal growth between the outer wall and the inner centerbody and vanes. Alternatively, the centerbody may be attached to one of the groupings of vanes to keep the centerbody from vibrating.

公开(公告)号：DE60336954D1

公开(公告)日：2011-06-16

申请号：DE60336954

申请日：2003-05-16

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PACHECO-TOUGAS MONICA ,  HOKE JAMES B ,  COUGHLAN JOSEPH D III ,  GOETSCHIUS ALAN J

IPC: F23R3/04 ,  F23R3/42 ,  F23R3/00 ,  F23R3/06 ,  F23R3/60

公开(公告)号：GB2332743B

公开(公告)日：2002-01-09

申请号：GB9828231

申请日：1998-12-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： COUGHLAN JOSEPH D ,  GOETSCHIUS ALAN J

IPC: F23C7/00 ,  F23R3/14 ,  F23R3/16

Abstract: A swirler 50 for a gas turbine engine combustor 10 has an outer wall 54, groupings 52 of vanes 42 attached to the outer wall, a centerbody 60 mechanically decoupled from the outer wall via the groupings of vanes so that the swirler can accommodate differential rates of thermal growth between the outer wall and the inner centerbody and vanes. Alternatively, the centerbody may be attached to one of the groupings of vanes to keep the centerbody from vibrating.

公开(公告)号：CA2274563A1

公开(公告)日：1999-12-08

申请号：CA2274563

申请日：1999-06-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KORZENDORFER JOHN J ,  MELMAN JEFFREY D ,  GOETSCHIUS ALAN J

IPC: F23R3/30 ,  F23C7/00 ,  F23D14/02 ,  F23D14/22 ,  F23R3/28 ,  F23D14/62 ,  F02C7/22

Abstract: A premixing, tangential entry fuel injector (10) for a gas turbine engine features a secondary fuel-air injection insert (40) positively secured to a centerbody shell (38) by a braze joint (98). A secondary fuel supply tube (42), positively secured to both a centerbody base (36) and to the insert (40), is curved in at least two dimensions. In an exemplary embodiment, the tube is coiled into a spiral shape covering a single 360.degree. cycle. During engine operation, the centerbody expands axially in response to elevated temperatures in the engine's interior, causing the insert (40) to be displaced away from the base (36). The curvature of the tube allows the tube to flex slightly to accommodate the displacement. Ideally the curvature of the tube is such that the tube's natural frequency is well above the maximum vibratory frequency that the tube will experience during engine operation.

公开(公告)号：EP2961969A4

公开(公告)日：2016-10-19

申请号：EP14756659

申请日：2014-02-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SHERIDAN WILLIAM G ,  GOETSCHIUS ALAN J

IPC: F02C7/36 ,  F01D15/12

CPC classification number: F01D25/20 ,  F01D5/02 ,  F01D15/12 ,  F01D25/16 ,  F01M2001/1021 ,  F02C7/06 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2240/54 ,  F05D2240/60 ,  F05D2260/40311 ,  F05D2260/98

Abstract: A pump system for a gas turbine engine has at least one pump. At least one valve has an outlet and at least one inlet is fluidly connected to the at least one pump. A geared architecture is positioned within a bearing compartment. The geared architecture is configured to receive lubricating fluid from the outlet of the at least one valve, a self-cleaning filter is positioned downstream of the at least one valve and upstream of the geared architecture. A gas turbine engine and a method are also disclosed.