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Fluid pipeline structure and fluid check valve assembly

A technology for fluid check valves and fluid pipelines, which is applied in the direction of lift valves, control valves, valve devices, etc., and can solve the problems of restricting the assembly and removal of fluid pipelines

Inactive Publication Date: 2014-03-26
EATON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A good illustration of this type of application is aircraft fluid systems where backflow of engine-generated air is unacceptable and the surrounding aircraft structure restricts the assembly and removal of fluid piping

Method used

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  • Fluid pipeline structure and fluid check valve assembly
  • Fluid pipeline structure and fluid check valve assembly
  • Fluid pipeline structure and fluid check valve assembly

Examples

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Embodiment Construction

[0014] Referring now to the discussion below and to the accompanying drawings, the systems and methods of the present invention are shown in detail by way of schematic representation. Although the drawings represent some possible embodiments, the drawings are not necessarily to scale and certain features may be exaggerated, removed or partially sectioned to better illustrate and explain the present invention. Furthermore, the descriptions used herein are not intended to be exhaustive or to limit or constrain the invention to the exact forms and configurations shown in the drawings and detailed description below.

[0015] In addition, a number of constants are cited in the description below. In some cases illustrative values ​​for constants are provided. In other cases, no specific value is given. The values ​​of the constants depend on the characteristics of the relevant hardware and the interrelationships between such characteristics as well as the environmental conditions ...

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Abstract

A fluid check valve for use in an aircraft fluid handling system having a confined surrounding structure where a first distance is defined between a fluid duct and the surrounding structure where the design of the fluid check valve is configured to facilitate removal of a first flange and the flow duct by moving the first flange and flow duct a second distance that is less than the first distance. The check valve is offset into the upstream side of a second flange to provide the reduction in the distance that the first flange has to be displaced to remove the first flange and flow duct from the check valve. A first alternate configuration of the fluid check valve utilizes rotational stops attached to the downstream surface of the flow flaps and in a second alternate embodiment configuration, rotational stops extend upstream from the flow flaps and make contact with at least one tower structure to limit the flow flap rotation in the open position.

Description

[0001] related application [0002] This application claims priority to US Provisional Application Serial No. 61 / 221,961, filed June 30, 2009. technical field [0003] The low clearance fluid check valve of the present invention relates to a fluid valve assembly for use in aircraft fluid delivery systems having limited structural clearance (space) where associated piping must be removed for repair check valve. The fluid check valve of the present invention is constructed so that at least one fluid conduit can be attached or removed with a reduced amount of clearance. Background technique [0004] Placing a swing check valve in the flow of a fluid is known to prevent the flow of the fluid in the opposite direction from the desired direction. Valves of this type are widely used in various embodiments such as domestic sewage pumps, industrial chemical plants and aircraft ground fuel handling equipment. In these applications, however, space is not a priority and removal of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/03B64D33/00F16K1/18
CPCB64D13/02F16K15/038F16K1/165Y10T137/598Y10T137/6017Y10T137/6906Y10T137/7837
Inventor J·D·默雷
Owner EATON CORP
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