公开(公告)号：WO1995008437A1

公开(公告)日：1995-03-30

申请号：PCT/US1994009830

申请日：1994-08-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  TONI, Darryl, M. ,  FORSTER, William, V. ,  NOWAK, Kenneth

IPC: B32B05/20

CPC classification number: B32B3/12 ,  B29C44/12 ,  B29D24/007 ,  B32B7/12 ,  B32B2038/0076 ,  B32B2250/40 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2305/024 ,  Y10T156/1003 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165

Abstract: A composite sandwich structure which includes upper and lower skin structures (20, 22), first and second honeycomb core structures (24, 26), and an intermediate portion disposed between the first and second honeycomb core structures. The intermediate portion comprises a composite laminate (30), a barrier member (32) and a foaming adhesive layer (34) disposed between the composite laminate and the barrier member. The foaming adhesive layer is of a type designed to expand when exposed to an elevated temperature. The composite laminate and the barrier member operate to limit the expansion of the foaming adhesive layer into the open cells of the first and second honeycomb core structures. The foaming adhesive layer, upon expansion, applies pressure against the composite laminate. This pressure, acting concomitantly with the applied curing pressure and the elevated temperature, cures the laminate. Furthermore, the expansion of the foaming adhesive urges the composite laminate and the barrier member apart so as to fill any core discrepancies, i.e., mistrimmed or damaged core, thay may exist in the honeycomb core structures.

Abstract translation: 一种复合夹层结构，包括上皮和下皮结构（20,22），第一和第二蜂窝芯结构（24,26）以及设置在第一和第二蜂窝芯结构之间的中间部分。 中间部分包括复合层压板（30），阻挡构件（32）和布置在复合层压板和阻挡构件之间的发泡粘合剂层（34）。 发泡粘合剂层是设计成当暴露于升高的温度时膨胀的类型。 复合层压板和阻挡构件的作用是将发泡粘合剂层的膨胀限制在第一和第二蜂窝状芯结构的开孔中。 发泡粘合剂层在膨胀时对复合层压体施加压力。 该施加的固化压力和升高的温度同时施加，固化层压板。 此外，发泡粘合剂的膨胀促使复合层压体和阻挡构件分开，以便填充任何芯部差异，即，失效或损坏的芯部，可能存在于蜂窝状芯结构中。

公开(公告)号：WO1995008473A1

公开(公告)日：1995-03-30

申请号：PCT/US1994009621

申请日：1994-08-24

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  TONI, Darryl, M. ,  GRANT, Peter, L. ,  JOHNSON, Craig, F. ,  HAYSE, Steven, R. ,  FORSTER, William, V. ,  NOWAK, Kenneth ,  OSIECKI, Larry, J.

IPC: B64D33/04

CPC classification number: F41H3/00 ,  B29D24/007 ,  B64D33/04 ,  F15D1/08 ,  F42B7/00 ,  Y10T428/24149 ,  Y10T428/24496

Abstract: A duct cover (12) for use with a duct (4) within a vehicle, the duct cover (12) operative for directing a fluid flow. The duct cover being further operative for minimizing the entrance of foreign object debris into the duct (4). The duct cover (12) has a flow directing honeycomb portion (16) for conducting the passing fluid flow in a preferred direction. The flow directing honeycomb (16) comprises an array of continuous, polygon shaped open cells (20) which are biased with respect to the initial fluid flow direction. The periphery (17) of the flow directing honeycomb (12) is rigidized to stiffen the same for minimizing the displacements thereof. The rigidity is provided by a framing member comprising upper and lower skin structures (28, 29) affixed to a core material (30). The framing member is preferably adhesively bonded to the flow directing honeycomb (16) by means of a foaming adhesive (36) and a barrier member (38). The barrier member (38) is operative for minimizing the expansion of the foaming adhesive (36) into the open cells (20) of the honeycomb (16). In order to improve the low observability characteristics of the structure, the cells (20) of the flow directing honeycomb (16) are preferably coated with a radar absorbent material, such as carbon, which acts to minimize the amount of electromagnetic energy that is reflected therefrom.

Abstract translation: 一种与车辆内的管道（4）一起使用的管道盖（12），所述管道盖（12）用于引导流体流动。 管道盖还可操作以最小化异物残留物进入管道（4）的入口。 管道盖（12）具有导流蜂窝部分（16），用于在优选的方向上传导通过的流体流。 导流蜂窝（16）包括相对于初始流体流动方向偏置的连续多边形开放单元（20）的阵列。 导流蜂窝体（12）的周边（17）被硬化以使其加强，以使其移动最小化。 刚性由包括固定在芯材（30）上的上，下皮肤结构（28,29）的框架构件提供。 框架构件优选通过发泡粘合剂（36）和阻挡构件（38）粘合地结合到导流蜂窝体（16）。 阻挡构件（38）用于最小化发泡粘合剂（36）到蜂窝（16）的开孔（20）中的膨胀。 为了改善结构的低观察性特征，导流蜂窝（16）的电池（20）优选地涂覆有诸如碳的雷达吸收材料，其用于最小化被反射的电磁能量的量 由此。

公开(公告)号：EP0720561B1

公开(公告)日：1998-05-06

申请号：EP94926592.0

申请日：1994-08-24

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： TONI, Darryl, M. ,  GRANT, Peter, L. ,  JOHNSON, Craig, F. ,  HAYSE, Steven, R. ,  FORSTER, William, V. ,  NOWAK, Kenneth ,  OSIECKI, Larry, J.

IPC: B64D33/04 ,  F15D1/08 ,  B29D24/00

CPC classification number: F41H3/00 ,  B29D24/007 ,  B64D33/04 ,  F15D1/08 ,  F42B7/00 ,  Y10T428/24149 ,  Y10T428/24496

Abstract: A duct cover (12) for use with a duct (4) within a vehicle, the duct cover (12) operative for directing a fluid flow. The duct cover being further operative for minimizing the entrance of foreign object debris into the duct (4). The duct cover (12) has a flow directing honeycomb portion (16) for conducting the passing fluid flow in a preferred direction. The flow directing honeycomb (16) comprises an array of continuous, polygon shaped open cells (20) which are biased with respect to the initial fluid flow direction. The periphery (17) of the flow directing honeycomb (12) is rigidized to stiffen the same for minimizing the displacements thereof. The rigidity is provided by a framing member comprising upper and lower skin structures (28, 29) affixed to a core material (30). The framing member is preferably adhesively bonded to the flow directing honeycomb (16) by means of a foaming adhesive (36) and a barrier member (38). The barrier member (38) is operative for minimizing the expansion of the foaming adhesive (36) into the open cells (20) of the honeycomb (16). In order to improve the low observability characteristics of the structure, the cells (20) of the flow directing honeycomb (16) are preferably coated with a radar absorbent material, such as carbon, which acts to minimize the amount of electromagnetic energy that is reflected therefrom.

公开(公告)号：EP0720529A1

公开(公告)日：1996-07-10

申请号：EP94929750.0

申请日：1994-08-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： TONI, Darryl, M. ,  FORSTER, William, V. ,  NOWAK, Kenneth

IPC: B29C44 ,  B29D24 ,  B32B3

CPC classification number: B32B3/12 ,  B29C44/12 ,  B29D24/007 ,  B32B7/12 ,  B32B2038/0076 ,  B32B2250/40 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2305/024 ,  Y10T156/1003 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165

Abstract: A composite sandwich structure which includes upper and lower skin structures (20, 22), first and second honeycomb core structures (24, 26), and an intermediate portion disposed between the first and second honeycomb core structures. The intermediate portion comprises a composite laminate (30), a barrier member (32) and a foaming adhesive layer (34) disposed between the composite laminate and the barrier member. The foaming adhesive layer is of a type designed to expand when exposed to an elevated temperature. The composite laminate and the barrier member operate to limit the expansion of the foaming adhesive layer into the open cells of the first and second honeycomb core structures. The foaming adhesive layer, upon expansion, applies pressure against the composite laminate. This pressure, acting concomitantly with the applied curing pressure and the elevated temperature, cures the laminate. Furthermore, the expansion of the foaming adhesive urges the composite laminate and the barrier member apart so as to fill any core discrepancies, i.e., mistrimmed or damaged core, thay may exist in the honeycomb core structures.

公开(公告)号：EP0720529B1

公开(公告)日：1997-07-09

申请号：EP94929750.1

申请日：1994-08-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： TONI, Darryl, M. ,  FORSTER, William, V. ,  NOWAK, Kenneth

IPC: B32B5/20 ,  B32B3/12 ,  B32B7/12 ,  B29C44/12 ,  B32B31/00

CPC classification number: B32B3/12 ,  B29C44/12 ,  B29D24/007 ,  B32B7/12 ,  B32B2038/0076 ,  B32B2250/40 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2305/024 ,  Y10T156/1003 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165

Abstract: A composite sandwich structure which includes upper and lower skin structures (20, 22), first and second honeycomb core structures (24, 26), and an intermediate portion disposed between the first and second honeycomb core structures. The intermediate portion comprises a composite laminate (30), a barrier member (32) and a foaming adhesive layer (34) disposed between the composite laminate and the barrier member. The foaming adhesive layer is of a type designed to expand when exposed to an elevated temperature. The composite laminate and the barrier member operate to limit the expansion of the foaming adhesive layer into the open cells of the first and second honeycomb core structures. The foaming adhesive layer, upon expansion, applies pressure against the composite laminate. This pressure, acting concomitantly with the applied curing pressure and the elevated temperature, cures the laminate. Furthermore, the expansion of the foaming adhesive urges the composite laminate and the barrier member apart so as to fill any core discrepancies, i.e., mistrimmed or damaged core, thay may exist in the honeycomb core structures.

公开(公告)号：EP0720561A1

公开(公告)日：1996-07-10

申请号：EP94926592.0

申请日：1994-08-24

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： TONI, Darryl, M. ,  GRANT, Peter, L. ,  JOHNSON, Craig, F. ,  HAYSE, Steven, R. ,  FORSTER, William, V. ,  NOWAK, Kenneth ,  OSIECKI, Larry, J.

IPC: B29D24 ,  B64D33 ,  F15D1

CPC classification number: F41H3/00 ,  B29D24/007 ,  B64D33/04 ,  F15D1/08 ,  F42B7/00 ,  Y10T428/24149 ,  Y10T428/24496

Abstract: A duct cover (12) for use with a duct (4) within a vehicle, the duct cover (12) operative for directing a fluid flow. The duct cover being further operative for minimizing the entrance of foreign object debris into the duct (4). The duct cover (12) has a flow directing honeycomb portion (16) for conducting the passing fluid flow in a preferred direction. The flow directing honeycomb (16) comprises an array of continuous, polygon shaped open cells (20) which are biased with respect to the initial fluid flow direction. The periphery (17) of the flow directing honeycomb (12) is rigidized to stiffen the same for minimizing the displacements thereof. The rigidity is provided by a framing member comprising upper and lower skin structures (28, 29) affixed to a core material (30). The framing member is preferably adhesively bonded to the flow directing honeycomb (16) by means of a foaming adhesive (36) and a barrier member (38). The barrier member (38) is operative for minimizing the expansion of the foaming adhesive (36) into the open cells (20) of the honeycomb (16). In order to improve the low observability characteristics of the structure, the cells (20) of the flow directing honeycomb (16) are preferably coated with a radar absorbent material, such as carbon, which acts to minimize the amount of electromagnetic energy that is reflected therefrom.