Patent Application
20130319572
The present disclosure generally relates to methods and devices for adding a fuel additive to a capless fuel system. More particularly, the present disclosure relates to a fuel additive bottle configured to engage a capless fuel system to disengage the capless fuel system locking mechanism.
In a traditional capped fuel tank system, a threaded cap is used to cap the tank. To add fuel or a fuel additive to the fuel tank, a user unscrews the cap from the fuel tank. Typically, the neck leading to the gas tank is unlocked or unobstructed once the cap is unscrewed. In recent years, capless fuel systems have been introduced, such as the Ford capless fuel system. In such systems, the tank filler neck is typically closed internally by a locked flap or door located within the throat of fuel tank filler neck. When the user inserts a gas nozzle into the capless fuel system, the gas nozzle disengages a locking mechanism, allowing the nozzle to push aside a door and add fuel.
Traditional fuel additive bottles, such as bottle 100 shown in
U.S. Patent Publication No. 2012/0285579 discloses a bottle that can be used with a capless fuel system. The bottle has threads 44 located at the end of neck 42. However, threads 44 can interfere with the unlocking mechanism of a capless fuel system.
What is desired, therefore, is a fuel additive container that can add fuel to a capless fuel tank system.
In an embodiment of a method for adding a liquid to a capless fuel system, a bottle is provided that can include a container holding the liquid, a spout, and a cap-attachment portion. The spout extends from and is in fluid communication with the container and has an elongated engagement nozzle with a radially outer surface extending to a distal tip of the bottle. The nozzle defines an opening for discharging the fluid from the bottle. The cap attachment portion can be configured for attaching a cap to close the engagement nozzle opening, and can be disposed clear of an outer surface of the engagement nozzle. In this exemplary method, the engagement nozzle can be inserted into a throat of a capless fuel system sufficiently far to contact and operate a lock disengagement element within the throat of the capless system to open an internal closure within the throat.
The cap attachment portion can be disposed on the bottle so as to remain clear of contact with the lock disengagement element as the elongated engagement nozzle is inserted into the throat. In some embodiments, the cap attachment portion is disposed proximally of the engagement nozzle, such as between the nozzle and the container, such that the engagement nozzle operates the lock disengagement element upon insertion of the engagement nozzle into the throat without the cap attachment portion reaching the lock disengagement element. In some exemplary embodiments, the outer surface of the engagement nozzle is substantially cylindrical, and in some exemplary embodiments, the outer surface of the engagement nozzle has a diameter of around 0.8 inches.
In an embodiment, the fuel system throat includes an outer mouth portion that tapers towards the lock disengagement element, and the attachment portion is inserted into the mouth when the engagement nozzle reaches and operates the lock disengagement element. In an embodiment, the cap attachment portion has male threads configured to engage female threads of a cap. In an embodiment, the elongated engagement nozzle is axially longer than the cap attachment portion. The cap attachment portion can be, for example, smaller than half the axial length of, and larger in outer diameter, than the engagement nozzle. In one embodiments, the cap attachment portion is disposed within the bottle to attach to a counterpart engagement portion of a cap. For example, the cap attachment portion can have female threads on an interior surface of the engagement nozzle configured to engage male threads of a cap.
The bottle can be provided with the cap attached to the cap attachment portion, thus closing the opening, and the method can include detaching the cap from the cap attachment portion to open the opening. In an embodiment, the unlocking member includes a tab that is depressed radially by the engagement nozzle inserted into the throat. The liquid can be dispensed from the bottle into the open capless fuel system.
The bottle can be of unitary construction, such as of polyethylene terephthalate or ABS. In an embodiment, the liquid is a fuel additive. Another embodiment of the present disclosure is a fuel additive bottle.
While multiple embodiments are disclosed, including variations thereof, still other embodiments of the present disclosure will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the disclosure. As will be realized, the disclosure is capable of modifications in various obvious aspects, all without departing from the spirit and scope of the present disclosure. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.
While the specification concludes with paragraphs particularly pointing out and distinctly claiming the subject matter that is regarded as forming the present invention, it is believed that the disclosure will be better understood from the following description taken in conjunction with the accompanying figures, in which:
The present disclosure relates to a novel and advantageous fuel additive bottle that can be used in a capped and capless fuel system. In the embodiment of
The preferred spout includes an elongated engagement nozzle 225 with a radial outer surface extending towards and terminating at a distal tip 275 of fuel additive bottle 200. The nozzle 225 preferably defines a nozzle opening 265. A fluid conduit 268 fluidly connects the container 250, through the spout 260 and nozzle 225, to discharge the fluid contained in the container 250 through the nozzle opening 265. Engagement nozzle 225 is preferably cylindrical and smooth, although alternative textures and shapes can be employed that can properly interface with the capless fuel system to unlock and open the fuel system. The length of elongated engagement nozzle 225 is sufficiently long and of a width (e.g. diameter) large enough to disengage a locking mechanism within the throat of the capless fuel system.
Container 205 is shown having a larger lower portion 257 connected to a tapered upper portion 258 Container 205 can be of any suitable design, shape, or color, and can be customized for different applications or for different customers. Spout 260 can optionally have an axial extension portion 220 that is preferably relatively short and disposed between the container 205 and a cap attachment portion 210. The cap attachment portion 210 of bottle 200 is preferably configured to attach a cap to close the nozzle opening 265. The attachment portion 210 can be disposed on the shortened portion 220, directly on the container 205, or be positioned elsewhere on the spout 250, for example, in a position to remain clear of the outer surface of the engagement nozzle 225 and nozzle opening 265. The cap attachment portion 210 can be threaded, including male, external threads 290 such as when disposed on the container 205 or an a proximal portion of the spout 250 adjacent to the container 205, or between the container 205 and the spout 250, to secure to female internal threads 263 of a cap 270 to close the nozzle opening 265. The attachment portion 210 can have female threads 263 on the interior of the spout 250 to attach to male threads on an exterior of a cap, such an arrangement is shown, for example, in
Bottle 200 can have an H value of the spout 260 (the distance from distal end 275 of the spout 260 or engagement nozzle 225, to the base of the spout 260 where the bottle 200 becomes significantly, and preferably suddenly, wider, typically at a step provided by a shoulder 262 at the top of the container 205 or by radial shelf or cap seat such as shown below the threads in
Elongated engagement nozzle 225 can have an outer diameter 280 that is preferably substantially uniform, although other configurations could be used, including slight tapers that are still capable of unlocking and opening a capless fuel system. An exemplary outer diameter is between about 0.6″ to 0.9″, with one embodiment being about 0.8″ or about 0.77″. For a gasoline fuel system, the outer diameter of the engagement nozzle is closely matched to the diameter of a standard gasoline pump nozzle, at about 0.8″. In other embodiments, fuel additive bottle 200 can be used with other fuel systems for other types of fuel, such as diesel, ethanol, a jet fuel, avgas, etc. and preferably has an appropriate diameter and configuration to match the corresponding configurations and dimensional standards of fuel pump nozzle sizes (e.g., about 0.9″ for diesel, about 1.95″ for avgas, about 2.3″ for jet fuel, etc.
In one embodiment, the engagement nozzle 225 has an inner diameter 285 of approximately between 0.5″ and 0.7″, being 0.62″ in one embodiment, although the interior can be varied depending on desired flow characteristics. Additionally, the inner diameter 285 of elongated engagement nozzle 225 can be uniform or tapered or have other shapes. In certain embodiments, the inner diameter 285 is between about 0.7 and 0.9 of the outer diameter 280 of the engagement nozzle 225 although smaller fractions can be used for certain embodiments.
Referring to
To engage with a capless fuel system, a portion of the elongated engagement nozzle 225, such as the tip 275 or outer surface of the engagement nozzle 225 for example, can be configured to depress at least one disengagement element 515 of a capless fuel system 500, which is typically located at the side of the entrance to the capless filler system, upstream of the door.
Fuel additive bottle 200 can be a single use bottle containing sufficient volume for a single application of fuel additive or other liquid, such that a user of the bottle 200 purchases a bottle for one-time use and discards the bottle thereafter. Alternatively, the bottle 200 can have sufficient volume for multiple uses, or and can be refilled after some or all liquid inside of fuel additive bottle 200 has been used. Bottle 200 can be formed with the container 250 and nozzle 260, and preferably the cap attachment portion 210 of unitary construction, although in some embodiments, some or each other these parts can be constructed from separate, assembled parts.
In a further exemplary embodiment, as depicted in
Fuel additive bottle 300 can have a traditional cap configured to engage threads 310 or other mechanism or cap engagement portion 360 and cover the spout opening to close and seal the bottle. Additionally, fuel additive bottle 300 can be a single use bottle such that a user of the fuel additive bottle 300 purchases a bottle for one-time use, and discards the bottle after the single use, or fuel additive bottle 300 can be designed for multi-use, and can be refilled after some or all liquid inside of fuel additive bottle 300 has been used.
When used with a capped fuel system, the cap can be removed from fuel additive bottle 300 and the liquid inside of fuel additive bottle 300 is poured into the fuel tank. When fuel additive bottle 300 is used with a capless fuel system, an adaptor 340 can be used. Adaptor 340 can have an elongated engagement nozzle to disengage the locking mechanism of a capless fuel system, and can have characteristics similar to elongated engagement nozzle 225 of the previously described embodiment. Adaptor 340 can have internal threads 345 or other attachment mechanism corresponding to the attachment portion 360 mechanism to engage threaded portion 310 and attach to the container 305. The user can insert the bottle with the adapter 340 into the capless fuel system to add the fuel additive as described below.
In a further exemplary embodiment, as depicted in
Referring to
When the spout 260 is inserted into the throat 522 of the capless fuel system 500 that leads to a fuel tank, such as of a car, motorcycle, or other motor vehicle, the treads 290 or other cap attachment portion 210 can remain clear of the tabs 515 or other disengagement element. For example, the cap attachment portion 210 shown in
The throat 522 of the capless fuel system 500 can include an outer mouth portion 535 at the outermost part of capless fuel system 500 filler port. The mouth portion 535 can be substantially cylindrical or can be tapered, for example and include a tapering area 540. The tapering area narrows into the capless fuel system 500, preferable to slightly larger than the standard size fuel nozzle corresponding to the type of fuel for which the fuel system is intended to be used, preferably reaching that diameter just outside of the disengagement elements, such as tabs 515. The mouth 535 depth 520 of approximately 0.5″ to 1″, but can be shallower or deeper in other embodiments. Additionally, the depth 530 of the tabs 515 or other disengagement element beyond where the fuel system filler port has narrowed is about 0.2″ to 1″, and the S value of the engagement nozzle 225 should be sufficiently long to engage and operate the tabs 515 or other disengagement mechanism, and preferably also push open the fuel door 505, which is shown as an exemplary flap in an open position in
To use fuel additive bottle 200 with capless fuel system 500, the elongated engagement nozzle 225 is inserted into an opening in capless fuel system 500. The elongated engagement nozzle 225 contacts and depresses the plurality of tabs 515, disengaging locking mechanism 510, with cap attachment portion 210 not reaching or otherwise remaining clear of the tabs 515. Once the locking mechanism 510 has been disengaged, fuel additive bottle 200 can optionally be inserted further into the fuel system, displacing door 505. The liquid contained inside of bottle 200 can then be poured into the fuel system. When bottle 200 is removed, door 505 is biased back into a closed position, and tabs 515 are released, which can reengage locking mechanism 510.
As depicted in
When the spout 260, either with or without an adaptor, is inserted into the capless fuel system, the engagement nozzle 225 contacts and disengages the locking mechanism at step 630. At step 640, the engagement nozzle 225 is inserted further into the capless fuel system, past the tabs 515, and contacts and moves the door 505 covering the capless fuel system. At step 645, the fuel additive is added into the capless fuel system. At step 650, the fuel additive bottle is removed, allowing the door to move back into a covering position, reengaging the locking mechanism. At step 655 the fuel door is closed, and the method ends at step 660.
In the above exemplary embodiments a threaded portion is incorporated in order to secure a cap to the fuel additive bottle, as well as to secure an adaptor to the fuel additive bottle. However, it should be noted, that other suitable types of engagement or securing mechanism can be used to secure a cap to the fuel additive bottle or to secure the adaptor to the fuel additive bottle.
The foregoing merely illustrates the principles of the disclosure. Various modifications and alterations to the described embodiments will be apparent to those skilled in the art in view of the teachings herein. It will thus be appreciated that those skilled in the art will be able to devise numerous systems, arrangements, and procedures which, although not explicitly shown or described herein, embody the principles of the disclosure and can be thus within the spirit and scope of the disclosure. Various different exemplary embodiments can be used together with one another, as well as interchangeably therewith, as should be understood by those having ordinary skill in the art. In addition, certain terms used in the present disclosure, including the specification, drawings and claims thereof, can be used synonymously in certain instances. It should be understood that, while these words, and/or other words that can be synonymous to one another, can be used synonymously herein, that there can be instances when such words can be intended to not be used synonymously. Further, to the extent that the prior art knowledge has not been explicitly incorporated by reference herein above, it is explicitly incorporated herein in its entirety.
This application relates to and claims priority from U.S. Patent Application No. 61/652,476, filed on May 29, 2012, the entire disclosure of which is incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 61652476 | May 2012 | US |
