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Sealed Flexible Ducting Joint, Gimbal Assembly for Tubing and Piping

IP.com Disclosure Number: IPCOM000237787D
Publication Date: 2014-Jul-11
Document File: 5 page(s) / 278K

Publishing Venue

The IP.com Prior Art Database

Related People

Don Glick: INVENTOR [+3]

Abstract

Fluid flow through the pipes and tubes passes through a number of joints, which usually reduce the area of flow and affect the laminar behavior of the fluid. The smooth flow of the fluid to the respective part is an important area of functional performance of the ducts inside aircraft. Aircraft in motion generates pressure, stress and vibration forces. Hence, there is a need of a flexible duct joint that can ensure the smooth flow of the fluid through pipes and tubes. It is noticed that in the existing design of the flexible duct joint, the internal area of the flow passage suddenly changes at the joint. The above mentioned problem can be solved by ensuring a smooth and uninterrupted inner diameter of the joint so that fluid flow inside the duct is not affected by any sudden change in the flow area. The proposed design of a hermetically sealed flexible ducting joint provides a smooth and uninterrupted inner flow path. Further, it is also providing full restraint to pressure, torsional loads and thermal growth, with vibration resistance when installed in a pressurized ducting system.

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Page 01 of 5

Sealed Flexible Ducting Joint, Gimbal Assembly for

Tubing and Piping

Don Glick, Arturo Ramos and Juan Cano ABSTRACT

Fluid flow through the pipes and tubes passes through a number of joints, which usually reduce the area of flow and affect the laminar behavior of the fluid. The smooth flow of the fluid to the respective part is an important area of functional performance of the ducts inside aircraft. Aircraft in motion generates pressure, stress and vibration forces. Hence, there is a need of a flexible duct joint that can ensure the smooth flow of the fluid through pipes and tubes. It is noticed that in the existing design of the flexible duct joint, the internal area of the flow passage suddenly changes at the joint. The above mentioned problem can be solved by ensuring a smooth and uninterrupted inner diameter of the joint so that fluid flow inside the duct is not affected by any sudden change in the flow area. The proposed design of a hermetically sealed flexible ducting joint provides a smooth and uninterrupted inner flow path. Further, it is also providing full restraint to pressure, torsional loads and thermal growth, with vibration resistance when installed in a pressurized ducting system.


1. Introduction

Joints or connectors have numerous applications in aerospace industry and also in areas where tubing or piping is extensively used. In an aircraft these joints or connectors have to tolerate high temperature and high pressure environment during the fluid flow. Hot and high pressurized fluid causes undesirable forces such as pressure, stress and vibration forces to the components that are in contact with hot and pressurized fluid. In addition, aircrafts are subjected to heavy loading during takeoff and vertical climb. Hence, there is a need of a joint that is flexible enough to absorb any resulting angular displacement or offset.


Page 02 of 5

The flexible duct joints such as ball and socket joint or gimbal joint, are described in the prior art for aircraft application. These sealed flexible joints are capable of restraining pressure load and also capable of handling vibration, angular movement and torsional load during operation. In the prior art, lobes of the pipe are connected with internal and external ring or central ring. The problem associated with these prior art systems is that the internal diameter of the duct is usually reduced, which affects the internal flow by disturbing the laminar behavior of the fluid. Smooth or laminar behavior of the fluid through pipes and tubes is an important aspect, as turbulence in the fluid could affect the functional performance of the aircraft engine and controls.

Hence, there is a need of a design that addresses the above mentioned limitations of existing systems.


2. Solution

The proposed invention addresses the above mentioned limitation of existing systems by providing a smooth and uninterrupted inner diameter for flexible duct gimbal assembly. This uninterrupted inner diameter...