Fuel vent connector, venting system having fuel vent connector, and method

Patent metadata

Field	Value
Publication number	US-10793416-B2
Application number	US-201615759355-A
Country	US
Kind code	B2
Filing date	Sep 13, 2016
Priority date	Sep 14, 2015
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

A fuel vent connector includes a longitudinal axis and a flow path a long the longitudinal axis. The connector further includes a first portion pivotally supporting a plurality of fingers, each finger amongst the plurality of fingers having a latching head biased radially outwardly and configured to latch within a fuel vent opening. The connector further includes a second portion biased longitudinally away from the first portion with respect to the longitudinal axis. The flow path extends through the first and second portions, and longitudinal movement of the second portion towards the first portion moves the fingers radially inward.

First claim

The invention claimed is:

1. A fuel vent connector having a longitudinal axis, the fuel vent connector comprising:
a flow path along the longitudinal axis;
a first portion pivotally supporting a plurality of fingers, each finger amongst the plurality of fingers having a latching head biased radially outwardly and configured to latch within a fuel vent opening;
a second portion biased longitudinally away from the first portion with respect to the longitudinal axis; and
a plurality of rods fixedly attached to the second portion and movable through the first portion, wherein each finger includes a first end having the latching head and a second end connected to a respective rod amongst the plurality of rods,
wherein the flow path extends through the first and second portions, and longitudinal movement of the second portion towards the first portion moves the fingers radially inward.

2. The fuel vent connector of claim 1 , wherein the first portion is fixedly attached to a vacuum hose, and the second portion is longitudinally movable with respect to the vacuum hose.

3. The fuel vent connector of claim 1 , further comprising a plurality of springs between the first and second portions.

4. The fuel vent connector of claim 1 , wherein each finger includes a pivot point between the first and second ends of the finger, and longitudinal movement of the second portion towards the first portion moves the rods to pivot the plurality of fingers radially inward.

5. The fuel vent connector of claim 1 , wherein each of the plurality of rods extends substantially parallel to the longitudinal axis of the fuel vent connector.

6. The fuel vent connector of claim 1 , further comprising a plurality of springs, each spring amongst the plurality of springs surrounding a respective rod amongst the plurality of rods, wherein the plurality of springs bias the second portion away from the first portion.

7. The fuel vent connector of claim 1 , wherein each of the first and second portions includes an outer lip region, the first portion further including an end region longitudinally opposite the outer lip region of the first portion, the latching head of each finger disposed adjacent the end region, and the outer lip region of the first portion having a greater width than an end region of the first portion.

8. The fuel vent connector of claim 7 , wherein the outer lip region of the first portion has a substantially same width as the outer lip region of the second portion.

9. The fuel vent connector of claim 1 wherein the first portion includes a main body, the main body having an end region, an outer lip region, and a first set of rod receiving apertures, the end region configured for insertion into the fuel vent opening, and the outer lip region having a greater width than a width of the end region, and the second portion includes a second set of rod receiving apertures, the connector further comprising a plurality of rods received respectively within the first and second set of rod receiving apertures, each finger amongst the plurality of fingers including a first end having the latching head and a second end connected to one of the plurality of rods, each finger pivotally attached to the first portion between the first and second ends.

10. A venting system comprising:
a vacuum hose having a first end and a second end; and,
a fuel vent connector operatively connected to the first end of the vacuum hose, the fuel vent connector having a longitudinal axis and including:
a flow path along the longitudinal axis, the flow path fluidically connected to an interior of the vacuum hose;
a first portion pivotally supporting a plurality of fingers, each finger amongst the plurality of fingers having a latching head biased radially outwardly and configured to latch within a fuel vent opening;
a second portion biased longitudinally away from the first portion with respect to the longitudinal axis; and
a venturi operatively connected to the second end of the vacuum hose,
wherein the flow path extends through the first and second portions, and longitudinal movement of the second portion towards the first portion moves the fingers radially inward.

11. The venting system of claim 10 , wherein the first portion is fixed with respect to the vacuum hose, and the second portion is movable with respect to the vacuum hose.

12. The venting system of claim 10 , further comprising a source of compressed air directed at the venturi.

13. A method of operating a fuel vent connector with respect to a fuel vent opening, the method comprising:
inserting the fuel vent connector within the fuel vent opening, the fuel vent connector having a longitudinal axis and including a first portion supporting a plurality of fingers and a second portion supporting a plurality of rods that connect with the plurality of fingers; and
latching the fuel vent connector within the fuel vent opening with the plurality of fingers using a non-rotating motion of a main body of the fuel vent connector with respect to the longitudinal axis.

14. The method of claim 13 , wherein the fuel vent connector includes:
a flow path along the longitudinal axis;
wherein, each finger amongst the plurality of fingers having a latching head biased radially outwardly and configured to latch within the fuel vent opening; and,
wherein the second portion is biased longitudinally away from the first portion with respect to the longitudinal axis, the flow path extending through the first and second portions.

15. The method of claim 14 , wherein inserting the fuel vent connector within the fuel vent opening compresses the fingers radially inward.

16. The method of claim 15 , wherein the fingers are compressed by a flange within the fuel vent opening and latching the fuel vent connector within the fuel vent opening includes moving the latching head of each finger past the flange to return the plurality of fingers to their radially outwardly biased position.

17. The method of claim 14 , further comprising unlatching the fuel vent connector from the fuel vent opening by squeezing the second portion towards the first portion in a longitudinal direction, wherein moving the second portion towards the first portion moves the plurality of fingers radially inward.

18. The method of claim 14 , wherein the first portion of the fuel vent connector is operatively connected to a vacuum hose.

Assignees

• Sikorsky Aircraft Corp

Inventors

• Dahm Conrad J

Classifications

• F16L37/096 Primary

  by means of hooks hinged about an axis · CPC title

• B60K15/03504

  adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems · CPC title

• B67D7/0478 Primary

  constructional features or components (vapour recovery nozzles B67D7/54) · CPC title

• B60Y2200/52

  Helicopters · CPC title

• B60Y2200/51

  Aeroplanes · CPC title