Claims:We claim:
1. A dual delivery system (100) for a mobile fuel dispenser (120), the dual delivery system (100) comprising:
a fuel tank (130);
a dispensing unit (110) with a set of fuel delivery nozzles (114);
a vane pump (140) connecting the fuel tank (130) with the dispensing unit (110), wherein the vane pump is powered by a power take off (PTO) unit (106);
a set of nozzle position sensors (104), wherein each nozzle position sensor (104) corresponds to each fuel delivery nozzles from the set of fuel delivery nozzles (150), wherein the set of nozzle position sensor (104) is configured to determine the position of each fuel delivery nozzle from the set of fuel delivery nozzles (150);
a fuel flow detection sensor (102) configured to detect flow rate of fuel dispensed from the fuel tank to the dispensing unit (110); and
a control unit (108) configured to receive a signal from the set of nozzle position sensors (104) and fuel flow detection sensor (102);
and
control RPM of the power take off (PTO) unit based on signal received from set of nozzle position sensors (104) and fuel flow detection sensor (102).

2. The system as claimed in claim 1, wherein the set of fuel delivery nozzles (150) comprise two or more fuel delivery nozzles (150 a - 150 n).

3. The system as claimed in claim 1, wherein the fuel delivery nozzle is in either one of a dispensing position or a non-dispensing position, wherein the control unit (108) is configured to increase or decrease the RPM of the PTO unit based on the number of nozzles in the dispensing position.

4. The system as claimed in claim 1, wherein the fuel flow sensor 102 is installed between the fuel tank (130) and the dispensing unit (110).

5. The system as claimed in claim 1, wherein the nozzle position sensor (104) is one of mechanical sensor selected from LVDT, or weight sensors such as diaphragm, load cells, or seismic displacement lift sensor.

Dated this 27th Day of August 2021

Priyank Gupta
Agent for Applicant
IN-PA-1454
, Description:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003

COMPLETE SPECIFICATION

(See Section 10 and Rule 13)

Title of invention:
A DUAL DELIVERY SYSTEM FOR A MOBILE FUEL DISPENSER AND A METHOD THEREOF
APPLICANT
Repos IOT India Private Limited
An Indian Entity having address as:
Kumar Vaastu, 103,
Opp Symphony Hotel,
Bhoslenagar, Pune - 411020, Maharashtra, India

The following specification describes the invention and the manner in which it is to be performed.

CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
The present application does not claim priority from any other patent application.

TECHNICAL FIELD
The present subject matter described herein, in general, relates to a mobile fuel delivery tanker. More particularly, the present subject matter relates to a system and method for controlling the rpm of power take off (PTO) based on signal received from fuel dispensing nozzle.

BACKGROUND
The concept of mobile fuel pump has evolved in the recent days. The mobile fuel pump can deliver fuel directly at client location. These mobile fuel pumps include fuel trucks, fuel tankers, mobile fuel storage units etc. Such mobile fuel tanks make it easy to transport the fuel from one place to another over a larger distance.
The system for pumping out the fuel from the tanks comprises a vane pump powered by a PTO unit of the mobile fuel pump. The vane pump is configured to deliver fuel at a predefined rate. The PTO unit and the vane pump may be connected with the help of a connector. In some embodiments, PTO unit and the vane pump may be connected with two or more dispensing units. However, as the number of dispensing units increase, the load on the PTO units also increases. If a constant RPM is maintained, the fuel delivered from the dispensing unit there is a sharp drop in the fuel delivery rate of the fuel from both the dispensing units.
Thus, there is a long-standing need of a system and method of dual delivery mechanism for a mobile fuel dispenser tank using a single vane pump.

SUMMARY

This summary is provided to introduce the concepts related to a system and method of dual delivery mechanism for a mobile fuel dispenser tank and the concepts are further described in the detail description. This summary is not intended to identify essential features of the claimed subject matter nor it is intended to use in determining or limiting the scope of claimed subject matter.

In the present subject matter, a system is disclosed for dual delivery of fuel via dispensing units controlling RPM of the PTO based on the number of dispensing units functioning at a particular point in time. The system comprises a fuel flow sensor, a nozzle position sensor, a PTO unit, a control unit, a dispensing unit, a fuel tank, and a vane pump. Further, the control unit is configured to receive signals from fuel flow sensor, the nozzle position sensor, and the PTO unit, and control RPM of a PTO unit. Further, the fuel delivery nozzle is in either one of a dispensing position or a non-dispensing position, wherein the control unit is configured to increase or decrease the RPM of the PTO unit based on the number of nozzles in the dispensing position. Thus, based on the nozzle position of both the dispensing units of a Mobile Fuel Delivery Tank the control unit controls the RPM of PTO unit.

BRIEF DESCRIPTION OF DRAWINGS

The detailed description is described with reference to the accompanying figures. In the Figures, the left-most digit(s) of a reference number identifies the Figure in which the reference number first appears. The same numbers are used throughout the drawings to refer like features and components.

Figure 1 illustrates a system 100 for dual delivery of fuel and controlling the RPM of the power take-off (PTO) unit based on the nozzle position of dispensing units, in accordance with an embodiment of a present subject matter.

Figure 2 illustrates a method 200 for dual delivery of fuel and controlling the RPM of the power take-off (PTO) unit based on the nozzle position of dispensing units, in accordance with an embodiment of a present subject matter.

DETAILED DESCRIPTION

Reference throughout the specification to “various embodiments,” “some embodiments,” “one embodiment,” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in various embodiments,” “in some embodiments,” “in one embodiment,” or “in an embodiment” in places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
Now refer to figure 1, which illustrates a system 100 for dual delivery of fuel and controlling the RPM of the power take-off (PTO) unit based on the nozzle position of dispensing units, in accordance with an embodiment of a present subject matter. The system may comprise a fuel flow sensor (102), a nozzle position sensor (104), a Power take-off (hereafter referred as PTO) unit (106), a control unit (108), a dispensing unit (110), a fuel tank (130) and a vane pump (140). Further, the fuel flow sensor (102) may be positioned between a fuel tank and a dispensing unit. Further, the dispenser unit may comprise a set of fuel delivery nozzles, wherein the fuel nozzle position sensor (104) may be installed in a fuel nozzle housing. Further, the PTO unit (106) may be configured to utilize the engine output enabling to drive a vane pump (140), which may supply fuel from the fuel tank (130) to the dispensing unit (110).
In an embodiment, the fuel nozzle position sensor (104), the fuel flow sensor (102), and the PTO unit (106) may be connected to the control unit (108). Further, the fuel nozzle position sensor (104), the fuel flow sensor (102), and the PTO unit (106) may be configured to transmit signals to the control unit (108).
In one embodiment, the fuel flow sensor (102) may be configured to sense the fuel delivery from the fuel tank to the fuel dispenser through the vane pump. Further, the flow sensors may be one of the flow sensors selected from flow meters, rotameters, spring and piston flow meters, positive displacement flow meters, and the like. Further, the PTO unit (106) may be engaged to drive the vane pump, which may further transfer fuel from the fuel tank to the dispensing unit and may transmit a PTO signal to the control unit (108). Further, the fuel flow sensor (102) may be configured to analyse the fuel flow and may transmit a sensor signal to the control unit (108).
In an embodiment, a set of nozzle position sensors, wherein each nozzle position sensor corresponds to each fuel delivery nozzles from the set of fuel delivery nozzles, wherein the set of nozzle position sensor is configured to determine the position of each fuel delivery nozzle from the set of fuel delivery nozzles, (i.e. the nozzle may be at non-dispensing position or at dispensing position). Based on the number of nozzles, of the set of nozzles, in dispensing positions, the control unit gives signals to increase or decrease the RPM of PTO unit. Further, the fuel nozzle position sensor (104) may comprise a sensor selected from mechanical sensors such as LVDT, or weight sensors such as diaphragm, load cells, or seismic displacement lift sensors, and the like. The fuel nozzle position sensor (104) may be configured to analyse the position of the nozzle and may transmit a sensor signal to the control unit (108).
In an embodiment, the control unit (108) may be configured to receive signals from the fuel nozzle position sensor (104), the fuel flow sensor (102), and the PTO unit (106). Further, on the basis of the signal received, the control unit (108) may be configured to control RPM of the PTO unit by taking inputs from the dispensing unit (110).
In an embodiment, the dual delivery system for mobile fuel delivery tank comprises of the control unit for controlling the rpm of power take off (PTO) based on signal received from fuel dispensing nozzle position sensors. If the control unit detects that only one dispensing unit (herein after referred to as DU) is active based on signal received from the position sensors, then the RPM of power take off (PTO) may be configured to be maintained at medium speed. If the control unit may detect that both the DUs are active based on signal received from the position sensors, then the RPM of power take off (PTO) may be maintained at maximum speed.
In one embodiment, the dispensing unit (110) may be configured to generate a plurality of signals based on the position of the nozzles in the dispensing unit and sent it to the control unit (108). Further, the dispensing units may correspond to a position of nozzles in the dispensing unit, wherein the RPM of the PTO unit may be controlled to medium speed when one of the fuel nozzles of the dispensing unit may be in non-dispensing position. Further, the RPM of the PTO unit may be controlled to high speed when both the fuel nozzles of the dispensing unit may be in dispensing position.
In one embodiment, now refer to figure 2, wherein the method for dual delivery of fuel and controlling the RPM of the power take-off (PTO) unit based on the nozzle position of dispensing units, may be illustrated, wherein:
At step (201), a (PTO) signal may be generated and transmitted to the control unit (108) by the PTO unit (106), wherein the PTO unit (106) may be activated manually by the user for initiating the fuel delivery process from the fuel tank to the fuel dispenser.

At step (203), after lifting of fuel nozzle from the dispenser, the fuel nozzle position sensor (104) may detect the lifting of the fuel nozzle from non-dispensing and transfer the signal to the control unit (108). Further, in this step, the fuel flow from the fuel tank to the dispenser may be detected by the fuel flow sensor (102), and a signal may be generated accordingly. Further the signal from the fuel flow sensor (102) may be transferred to the control unit (108).

At step (205), after lifting of fuel nozzle from the dispenser, the fuel nozzle position sensor (104) may detect the lifting of the fuel nozzle from non-dispensing and transfer the signal to the control unit (108). Further, in this step, the fuel flow from the fuel tank to the dispenser may be detected by the fuel flow sensor (102), and a signal may be generated accordingly. Further the signal from the fuel flow sensor (102) may be transferred to the control unit (108).

At step (207), the control unit (108) may be configured to receive the PTO engagement signal and the sensor signals, wherein the control unit (108) is configured to monitor the nozzle lifting status and the fuel delivery, wherein monitoring the nozzle position and receive signals from the nozzle position sensors.

At step (209), the control unit (108) may receive signal indicating non-dispensing position for one of the nozzles and dispensing position for another in the dispensing units indicating that only one DU may be functioning thereafter. Based on the signal, the control unit (108) may be configured to set the RPM of PTO unit at medium speed.

At step (211), the control unit (108) may receive signal indicating dispensing position for both the nozzles in the dispensing units indicating that both of the DUs may be functioning thereafter. Thus, the control unit (108) may be configured to set the RPM of PTO unit at high speed.

Various modifications to the embodiment will be readily apparent to those skilled in the art and the generic principles herein may be applied to other embodiments. However, one of ordinary skill in the art will readily recognize that the present disclosure is not intended to be limited to the embodiments illustrated but is to be accorded the widest scope consistent with the principles and features described herein.

The foregoing description shall be interpreted as illustrative and not in any limiting sense. A person of ordinary skill in the art would understand that certain modifications could come within the scope of this disclosure.
The embodiments, examples and alternatives of the preceding paragraphs or the description and drawings, including any of their various aspects or respective individual features, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments, unless such features are incompatible.