MXPA00000782A - High pressure filling nozzle - Google Patents

Abstract

A fluid nozzle (1) for dispensing high pressure fluids includes an outer sleeve, a nozzle inlet (3) for receiving a high pressure fluid and a nozzle outlet (4) for discharging the high pressure fluid, an inner pipe in fluid communication with the nozzle inlet and the nozzle outlet, a valve biased to close the fluid flow passage through the inner pipe, a piston (6), and a plurality of radially movable connecting jaws (5) positioned about the periphery of the outlet (4). The connecting jaws (5) have first ends engaging the piston (6) and second ends for engaging an inlet of a fluid receptacle (2). In the connected position, the pressure exerted by the fluid causes the connecting jaws (5), the piston (6), and the inner pipe to move axially relative to the outer sleeve and in turn causes the valve to open, permitting passage of the high pressure fluid through the nozzle.

Description

HIGH PRESSURE FILLING NOZZLE FIELD OF THE INVENTION This invention relates to a high pressure filling nozzle. In particular, the invention relates to a nozzle that provides a sealed connection with an inlet of a receptacle for filling the receptacle.

SUMMARY OF THE INVENTION It is an object of the invention to provide a nozzle that can quickly, easily and safely create a sealed connection with an inlet of a receptacle to fill the receptacle with high pressure fluid.

BRIEF DESCRIPTION OF THE DRAWINGS In order that the invention may be more clearly understood, it will now be described in detail and by way of example or preferred embodiment thereof, with reference to the accompanying drawings, in which: Figure 1 is a cross-sectional view of a preferred embodiment of the invention in the decoupled position; Figure 2 is a cross-sectional view of the preferred embodiment in a partially uncoupled position; P1014 / 00MX Figure 3 is a cross-sectional view of the preferred embodiment, connected to a receptacle; Figure 4 is a cross-sectional view of the preferred embodiment connected to a receptacle; Figure 5 is a cross-sectional view of the preferred embodiment connected to a receptacle in an open valve position; Figure 6 is a cross-sectional view of the preferred embodiment connected to a receptacle initiating decoupling; Figure 7 is a cross-sectional view of the preferred embodiment in the decoupled position; Figure 8 is a cross-sectional view of the preferred embodiment in the engaged position without the receptacle; Figure 9 is a cross-sectional view of the preferred embodiment, perpendicular to the cross-sectional views of Figures 1 to 8.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT In accordance with the present invention, there is provided a fluid nozzle for the delivery of fluids at high pressure, comprising an outer sleeve, a nozzle inlet for P1014 / 00MX receive a high pressure fluid and a nozzle outlet to discharge the high pressure fluid, an inner tube in fluid communication with the nozzle inlet and nozzle outlet, a push valve to close the passage of fluid flow through the inner tube, a piston and a plurality of radially movable connecting jaws, placed around the periphery of the outlet. The connector jaws have first ends that engage with the piston and second ends for coupling with the inlet of a fluid receptacle. In the connected position, the pressure exerted by the fluid causes the connecting jaws, the piston and the inner tube to move axially with respect to the outer sleeve and in turn cause the valve to open, allowing the passage of the fluid at high pressure through the mouthpiece. In accordance with another feature of the invention, the valve is arranged or arranged in an inlet cavity. In accordance with another aspect of the invention, the connector jaws extend in the axial direction beyond the outlet of the nozzle and can be moved radially inwardly to securely connect and seal the nozzle outlet with the receptacle inlet. In addition, a control ring is arranged adjacent to P1014 / OOMX the jaws and can move axially with respect to them. The axial movement of the control ring allows radial movement of the jaws. According to another aspect of the invention, the piston is arranged in a piston cavity. This cavity has the ability to be in fluid communication with the entrance cavity. In addition, the valve is pushed to close the passage of fluid flow through the inner tube by the pressure of a high pressure fluid in the inlet cavity. The area of the piston cavity on which the high pressure fluid acts is greater than the area on which the high pressure fluid acts to push the valve closed. Further features of the invention are found by providing a nozzle housing that has a hole in it, a rod connected to the outer sleeve and received in the bore and a channel in the rod that is in fluid communication with the cavity for the piston. The housing can move axially with respect to the outer sleeve in order to locate or position the rod channel in fluid communication with the inlet cavity. Referring now to the drawings in detail, where similar numbers indicate the P1014 / 00MX same elements in all the views, Figure 1 shows a filling nozzle 1 in disconnected position and a corresponding input 2 of the receptacle connected in sealed form with any suitable receptacle (not shown), such as for example, the tank of fuel of a gaseous fuel vehicle. The filling nozzle is connected to the high pressure fluid supply (not shown). The nozzle has a nozzle inlet 3 for the high pressure fluid and an outlet 4, which seals against the inlet 2 of the receptacle for filling therein. A plurality of connecting jaws 5 are connected to a piston 6. The jaws are located around the periphery of the inlet 4 and can move radially. The high pressure fluid occupies the inlet cavity 7. As shown in Figure 2, the filling nozzle is connected to the inlet 2 of the receptacle by pressing the receptacle inlet against the control ring 11 and sliding a retaining ring 12 projecting axially from the inlet end of the receptacle. outer sleeve 10 towards the receptacle. As shown in Figure 3, the inlet 2 of the receptacle pushes against the control ring 11, compressing the control ring against the control spring 20. The movement of the outer sleeve towards the receptacle causes the ring P1014 / 00 X Retention 12 push the jaws 5 radially inward to securely connect and seal the nozzle to the receptacle inlet. A seal 21 provides a gas tight connection between the nozzle outlet 4 and the receptacle inlet. Figure 4 shows the outer sleeve 10 abutting the nozzle housing 30. Any movement of the sleeve with respect to the housing is avoided. A first rod 31 and a second rod 32 project axially from the end of the outer sleeve. The first and second rods are respectively received in the corresponding first bore 33 and second bore 34. A first groove 35 is defined in the first rod 31. In the connected position shown in Figure 4, the first groove is in fluid communication with a radial channel 36, which is in turn in fluid communication with the inlet cavity 7. The first slot 35 allows the high pressure fluid to communicate with a first bore 37 (only the entry point is shown). The perforation is in fluid communication with a cavity 38 of the piston. In accordance with the foregoing, the high pressure fluid travels through the first bore 37 to occupy the cavity 38 of the piston. The area of the cavity 38 of the piston on which the high pressure acts is greater than the forces P1014 / 00MX combined high pressure acting on valve 39, valve spring 40 and piston spring 41. In accordance with the foregoing, the force generated by the high pressure fluid in the piston cavity moves the piston 42, the jaws 5 and the main tube 43 to the right towards the inlet 3 of the nozzle, with respect to the rest of the piston. the mouthpiece This in turn causes the valve 39 to be there and the high pressure fluid to travel through the main tube 43 to the inlet 2 of the receptacle, as shown in Figure 5. After the filling of the receptacle is completed, the nozzle can uncoupling by sliding the sleeve 10 outwardly or away from the inlet 2 of the receptacle, as shown in Figure 6. The equalization of the pressures existing between the inlet cavity 7 and the piston cavity 38 allows easy disengagement of the nozzle .. The sliding of the sleeve acts to extract the first rod 31 and the second rod 32 from the first bore 33 and from the second bore 34, respectively. A second groove 60 is defined in the second rod 32. The second groove is placed in fluid communication with a second bore 61 (only the exit point is shown) in fluid communication with the cavity 38 of the piston. The high pressure fluid from the piston cavity 38 drains through the second bore 61 and the P1014 / OOHX second slot 60 out towards the atmosphere through an exhaust channel 90 (shown in Figure 9). The high pressure fluid in the inlet cavity 7 causes the valve 39 to close when the movement of the parts described in Figure 5 is reversed. Figure 7 (identical to Figure 1) shows the nozzle uncoupled from the inlet 2 of the receptacle. The sliding of the sleeve 10 outwards or away from the receptacle causes the retaining ring 12 to release the jaws 5. The nozzle can then be removed from the receptacle inlet. Figure 8 shows a particularity of safety of the nozzle 1 in the event that a user attempts to dispense the fluid at high pressure without coupling the nozzle to the inlet 2 of the receptacle. In this position, the high pressure fluid fills the cavity 38 of the piston, as described above. Although the piston 42 and the jaws 5 move relative to the rest of the nozzle, as described above, the main tube 43 does not move, because the jaws are not secured to the inlet 2 of the receptacle. Accordingly, the valve can not be opened to allow high pressure fluid flow through the nozzle. It will be appreciated that the above description is P1014 / 00MX relates to the preferred embodiment only by way of example. Many variations of the invention will be obvious to those skilled in the art and these obvious variations are within the scope of the invention, as described and claimed, whether expressly described or not.

P1014 / 00 X

Claims (8)

1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, the content of the following CLAIMS is claimed as property: 1. A fluid dispensing nozzle, comprising: an external sleeve, an inlet of nozzle for receiving a high pressure fluid and a nozzle outlet for discharging the high pressure fluid; an internal tube in fluid communication with the inlet of the nozzle and with the outlet of the nozzle; a thrust-operated valve for closing the fluid flow passage through the inner tube; a piston; and a plurality of radially movable connecting jaws placed around the periphery of the outlet, the connecting jaws have first ends that engage with the piston and second ends to engage with an inlet of a receptacle in which it will be dispensed the fluid; wherein the connecting jaws, the piston and the inner tube can move axially with respect to the outer sleeve and, where the piston can be operated to open the valve and allow the passage of the high pressure fluid through P1014 / 00MX of the nozzle.
2. 2. The fluid dispensing nozzle according to claim 1, wherein the valve is disposed in an inlet cavity.
3. 3. The fluid dispensing nozzle according to claim 1, wherein the connector jaws extend axially beyond the nozzle inlet and can be moved radially inward to securely connect and seal the outlet of the nozzle with the inlet. of the receptacle.
4. The fluid dispensing nozzle according to claim 3, further comprising at least one control ring disposed or arranged adjacent to the connecting jaws and movable axially relative thereto, wherein the axial movement of the ring Control allows the radial movement of the connecting jaws.
5. 5. The fluid dispensing nozzle according to claim 1, wherein the piston is disposed in a piston cavity, the piston cavity has the ability to be in fluid communication with the inlet cavity.
6. 6. The fluid dispensing nozzle according to claim 5, wherein the valve is pushed to close the flow passage of the fluid through the inner tube by the pressure of a P1014 / O0MX high pressure fluid in the inlet cavity and, additionally, where when the piston cavity is in fluid communication with the inlet cavity, the area of the piston cavity on which the high pressure fluid acts is greater than the area over which the fluid at high pressure acts to push the valve closed. The fluid dispensing nozzle according to claim 1, further comprising a nozzle housing, which has at least one bore, at least one rod connected to the outer sleeve and received in the borehole and at least one channel in the borehole. the rod that is in fluid communication with the piston cavity. The fluid dispensing nozzle, according to claim 7, wherein the housing can move axially with respect to the outer sleeve to locate the channel of the rod in fluid communication with the inlet cavity. P1014 / 00HX