Rinse nipple

Patent metadata

Field	Value
Publication number	US-2024050999-A1
Application number	US-202318448313-A
Country	US
Kind code	A1
Filing date	Aug 11, 2023
Priority date	Aug 12, 2022
Publication date	Feb 15, 2024
Grant date	—

Abstract

A rinse device has a housing part and a rinse head. The rinse head has a plurality of openings through which the pressurised fluid is ejected. The housing part includes an outer housing tube and an inner piston movable axially relative to the outer housing tube, and a sealed air-filled cavity defined therebetween, and a spring attached at a first end to the outer housing tube and at a second end to the piston, and wherein the rinse head is attached to the piston at the second end of the housing part, such that the spring is biased to hold the piston at a first axial position relative to the outer housing tube until a force exerted by the pressure of the fluid inside the housing part exceeds the sum of an axial force of the spring and the force from the pressure of the air in the air cavity.

First claim

1 . A rinse device comprising:
a rinse head; and a housing part, the housing part having:
a first end configured to be attached to a supply of pressurised fluid and a second end attached to the rinse head,
an axis X defined along the housing part from the first end to the second end, the housing part defining a cavity through which the pressurised fluid flows, in use, from the first end to the rinse head,
wherein the rinse head includes a plurality of openings through which the pressurised fluid is ejected; wherein the housing part comprises an outer housing tube and an inner piston movable axially relative to the outer housing tube, and a sealed air-filled cavity defined therebetween, and a spring attached at a first end to the outer housing tube and at a second end to the piston; wherein the rinse head is attached to the piston at the second end of the housing part, such that the spring is biased to hold the piston at a first axial position relative to the outer housing tube until a force exerted by the pressure of the fluid inside the housing part exceeds the sum of an axial force of the spring and the force from the pressure of the air in the air cavity, whereupon the piston is extended axially relative to the housing tube against the force of the spring to a second axial position relative to the outer housing tube, the rinse device further comprising: a damping orifice defining a passage from the air cavity through the housing tube to an exterior of the device, such that as pressure of fluid inside the housing part increases, air in the air cavity is compressed and caused to exit the air cavity in a controlled manner via the damping orifice.

2 . A rinse device as claimed in claim 1 , wherein the rinse head is rotatable relative to the housing part.

3 . The rinse device as claimed in claim 2 , wherein the plurality of openings are distributed around the rinse head such that the force of fluid spraying from the openings is such as to cause rotation of the rinse head.

4 . The rinse device of claim 1 , further including a connector at the first end of the housing part for attachment to the supply of pressurised fluid.

5 . The rinse device of claim 4 , further comprising:
a seal between the first end of the housing part and the connector.

6 . The rinse device of claim 4 , further comprising:
a connector port received in the connector for connection to a hose.

7 . The rinse device of claim 1 , further comprising:
a bushing attaching the spring to the housing tube.

8 . The rinse device of claim 1 , wherein the air cavity is sealed by means of a first seal at a first end and a second seal at a second end.

9 . A tank cleaning assembly, comprising:
a tank defined by a tank wall; and a rinse device according to claim 1 mounted through the tank wall such that the first end of the housing part is at the exterior to the tank and the rinse head is at the interior of the tank.

10 . A tank cleaning assembly as claimed in claim 9 , wherein the rinse device is mounted through an opening in the tank wall and is secured by means of a flange.

11 . A tank cleaning assembly as claimed in claim 10 , further comprising a supply of cleaning fluid for connection to the rinse device via the first end of the housing part.

12 . The tank cleaning assembly of claim 9 , wherein the tank is a waste tank of an aircraft.

13 . A method of cleaning an interior of a tank using a rinse device as claimed in claim 1 , the method comprising:
mounting the rinse device through a wall of the tank to be cleaned; and providing pressurised cleaning fluid to the rinse device at the first end of the housing part, whereby the rinse head is caused to move to the second axial position in response to the pressure of the applied fluid exceeding the sum of the axial force of the spring and the force from the pressure of the air in the air cavity, whereupon cleaning fluid sprays from the openings of the rinse head.

14 . The method of claim 13 , wherein the spraying of the cleaning fluid causes rotation of the rinse head.

15 . The method of claim 13 , wherein upon removal of application of the pressurised fluid, the rinse head returns to the first axial position.

Assignees

• Goodrich Corp

Inventors

• Swirniak Pawel
• Tarnowski Adrian

Classifications

• B08B9/093 Primary

  by the force of jets or sprays ({B08B9/0813} , B08B9/20 take precedence) · CPC title

• B08B3/024

  Cleaning by means of spray elements moving over the surface to be cleaned · CPC title

• B08B2203/02

  Details of machines or methods for cleaning by the force of jets or sprays · CPC title

• B08B2209/027

  for cleaning the internal surfaces · CPC title

• B05B15/74 Primary

  driven by the discharged fluid · CPC title