Flow restriction system for regulating dynamic pressure loss

Patent metadata

Field	Value
Publication number	US-9669922-B2
Application number	US-201414573413-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Dec 17, 2014
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A vibration control system includes an outer housing, an inner housing carried within the outer housing, a fluid passage extending through the inner housing and in fluid communication with a first fluid reservoir and a second fluid reservoir on opposing sides of the inner housing, and a gas extraction system. The gas extraction system includes a gas reservoir in fluid communication with the first fluid reservoir, a removable cap secured to the outer housing, a lid removably attached to the cap, and a plurality of conduits extending through cap and lid and configured to provide fluid and gas communication between the first reservoir and the gas reservoir.

First claim

What is claimed is:

1. A vibration control system, comprising:
an outer housing;
an inner housing carried within the outer housing;
a fluid passage extending through the inner housing and in fluid communication with a first fluid reservoir and a second fluid reservoir on opposing sides of the inner housing;
a gas extraction system, having:
a gas reservoir in fluid communication with the first fluid reservoir;
a removable cap secured to the outer housing;
a lid removably attached to the cap; and
a plurality of conduits extending through cap and lid and configured to provide fluid and gas communication between the first reservoir and the gas reservoir.

2. The system of claim 1 , further comprising:
a fastener configured to secure the plate to the cap.

3. The system of claim 1 , the plate having:
a circular plate channel in fluid communication with a plurality of cap conduits extending through a thickness of the cap.

4. The system of claim 3 , further comprising:
a plurality of plate conduits disposed within a thickness of the plate and in fluid communication with the circular plate channel;
wherein the plurality of plate conduits extend tangent to the circular plate channel.

5. The system of claim 4 , further comprising:
a plurality of plate ports in fluid communication with the plurality of plate conduits.

6. The system of claim 5 , wherein the plurality of plate ports are offset from the cap conduits.

7. The system of claim 1 , further comprising:
a lid configured to form the gas reservoir and configure to secure the cap to the outer housing.

8. The system of claim 7 , further comprising:
a locking device configured to lock the lid to the outer housing.

9. The system of claim 1 , the cap having a sidewall configured to form a gas reservoir.

10. An aircraft, comprising:
a vibrating structure;
a non-vibrating structure; and
a vibration control system configured to control the vibrations exerted on the non-vibrating structure via the vibrating structure, the vibration control system comprising:
an outer housing;
an inner housing carried within the outer housing;
a fluid passage extending through the inner housing and in fluid communication with a first fluid reservoir and a second fluid reservoir on opposing sides of the inner housing;
a gas extraction system, having:
a gas reservoir in fluid communication with the first fluid reservoir;
a removable cap;
a lid removably attached to the cap; and
a plurality of conduits extending through cap and lid and configured to provide fluid and gas communication between the first reservoir and the gas reservoir.

11. The aircraft of claim 10 , further comprising:
a fastener configured to secure the plate to the cap.

12. The aircraft of claim 10 , the plate having:
a circular plate channel in fluid communication with a plurality of cap conduits extending through a thickness of the cap.

13. The aircraft of claim 12 , further comprising:
a plurality of plate conduits disposed within a thickness of the plate and in fluid communication with the circular plate channel;
wherein the plurality of plate conduits extend tangent to the circular plate channel.

14. The aircraft of claim 13 , further comprising:
a plurality of plate ports in fluid communication with the plurality of plate conduits.

15. The aircraft of claim 14 , wherein the plurality of plate ports are offset from the cap conduits.

16. The aircraft of claim 10 , further comprising:
a lid configured to form the gas reservoir and configure to secure the cap to the outer housing.

17. The aircraft of claim 16 , further comprising:
a locking device configured to lock the lid to the outer housing.

18. The aircraft of claim 10 , the cap having a sidewall configured to form a gas reservoir.

19. A method to remove gas bubbles from a fluid reservoir of a vibration control system, the method comprising:
providing a vibration control system of claim 1 ; and
channeling gas bubbles through the cap and the plate of the gas extraction system from the first reservoir to the gas reservoir.

20. The method of claim 19 , further comprising:
removably attaching the cap and the plate from the outer housing.

Assignees

• Bell Helicopter Textron Inc

Inventors

• Griffin Maurice D

Classifications

• B64D27/26

  Operations & Transport · mapped topic

• F16F9/06

  using both gas and liquid {(F16F9/486 take precedence; self-pumping fluid springs B60G17/044)} · CPC title

• B64C2027/002

  mounted between the rotor drive and the fuselage · CPC title

• B01D19/0073

  by a method not covered by groups B01D19/0005 - B01D19/0042 · CPC title

• B64D2027/262

  Operations & Transport · mapped topic