JPH04294799A - Refueling nozzle - Google Patents

Abstract

PURPOSE:To provide a refueling nozzle whose operability is not disturbed by providing a vapor recovery passage in the cylinder portion of said nozzle. CONSTITUTION:A refueling nozzle comprises a cylinder end portion 2, a cylinder portion 10 and a grip portion 40. The portion 2 is inserted into a refueling port of automobile and includes a nozzle portion 3 with a refueling port engaging piece 3a. A vapor collector 4 made of anti-oil rubber etc., is provided around the portion 3. The end 4a of the vapor collector has a trumpet-shape so that sealing between the refueling port of automobile and the collector can be easily established to facilitate recovery of vapor. The rear end of the collector 4 is closely attached to an attaching cylinder 5 protruding to the outer periphery of the portion 3 by means of a band 4b, while a vapor recovery pipe 6 has an opening in an intermediate position of the portion 3. The pipe 6 is arranged as shown by a figure outside the portion 10.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply nozzle that includes a barrel tip, a barrel, and a grip, and has an oil inlet opening on the side surface of the barrel.

0002

2. Description of the Related Art Refueling nozzles, which generally consist of a barrel tip, a barrel, and a grip, are well known. Also, generally speaking, when refueling a car, for example, using a refueling nozzle,
Since gasoline vapor is generated, it is well known to collect this vapor in, for example, an underground tank, and a refueling nozzle equipped with a vapor collector for vapor recovery is disclosed, for example, in Japanese Patent Publication No. 2-42760.

[0003] In this known technique, when refueling, the vapor generated flows from the vapor collector to the grip, flows to the double hose, and is collected in an underground tank.

However, in the prior art, the vapor recovery path is necessarily provided inside the refueling nozzle for better operability, so the recovery path is formed inside the cylinder body and passes through the grip. Connected to a double hose vapor recovery path. For this reason, the diameter of the grip becomes large, and when this diameter is reduced, the area through which oil flows becomes smaller, resulting in greater flow loss. Furthermore, when the diameter of the gripping portion becomes large, it becomes difficult to grip the refueling nozzle, impairing operability.

[0005]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a fuel nozzle in which a vapor recovery path is provided in the cylindrical body of the fuel nozzle, and operability is not impaired.

[0006]

[Means for Solving the Problems] According to the present invention, in a refueling nozzle that includes a cylinder tip, a cylinder body, and a grip part, and has an oil inlet opening on a side surface of the cylinder body, vapor is supplied to the cylinder tip. A collector is provided, and a vapor recovery path from the vapor collector is led to the oil inlet through the inside of the cylinder body.

[0007]

[Description of effects] Therefore, vapor is collected from the vapor collector through the vapor recovery path in the cylinder body, through the oil inlet on the side of the cylinder body, and from the vapor recovery path of the double hose. .

[0008] Therefore, the vapor recovery path in the refueling nozzle does not pass through the grip portion, so the grip portion does not become large and operability is not affected. Moreover, the vapor can be suitably recovered.

[0009]

[Preferred Embodiment] When carrying out the present invention, an inner vapor recovery path and an outer liquid path are formed concentrically at the oil inlet, and the liquid path is directed inward through a swivel joint and an elbow, and the vapor recovery path is directed outside through a swivel joint and an elbow. Preferably, it is connected to a double hose with a By configuring the swivel joint in this manner, a double hose having a liquid path on the inside and a paper recovery path on the outside can be used.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1, the refueling nozzle 1
In case 5, the refueling machine 50 is installed on the ground.
1, and an underground tank 52 buried underground.

A fuel supply pipe 53 extends into the case 51 from the underground tank 52 . A pump 54 and a flow meter 55 are connected in series to this oil supply pipe 53.
The amount of oil measured in step 5 is displayed on a display 56.

A double hose 57 is connected to the oil supply pipe 53 via an elbow 100, and this hose 57 is supported by a flexible support 58 erected on the case 51, and is folded back to supply oil to its tip. Nozzle 1 is connected. Since the hose 57 is supported by the support and folded back in this way, the hose does not come into contact with the ground when the nozzle 1 is removed from the nozzle hook N for refueling and refueling. In addition, a safety fitting 59 is interposed in the hose 57,
The hose separates at this safety joint in the event of sudden tension. The safety joint is equipped with a check valve, which prevents oil from flowing out when the hose separates.

[0013] In order to collect vapor generated in the tank of an automobile during refueling work, a vapor collector is provided in the refueling nozzle as described later, and the vapor from the vapor collector is sucked by a blower 91 and transferred to a double hose. The vapor pipe 90 passes through the vapor recovery path 57 and reaches the elbow 100.
and is collected in an underground tank 52. In FIG. 1, solid arrows indicate the flow of oil, and dotted lines indicate the flow of vapor.

As shown in FIGS. 2 and 3, the refueling nozzle 1 is composed of a barrel tip 2, a barrel 10, and a grip 40.

The tube tip portion 2 is a portion to be inserted into a fuel filler port of an automobile, and is provided with a nozzle portion 3 having a filler port engaging piece 3a. A vapor collector 4 made of oil-resistant rubber or the like is provided on the outer periphery of this nozzle portion 3. The tip 4a of the vapor collector expands into a trumpet shape to facilitate sealing with the fuel filler port of an automobile and to facilitate collection of vapor. The rear end of the vapor collector 4 is tightly attached to a mounting tube 5 protruding from the outer periphery of the nozzle portion 3 with a band 4b, and a vapor recovery pipe 6 is opened approximately in the middle thereof. The recovery pipe 6 is disposed outside the cylinder body 10 as shown in the figure.

The nozzle portion 3 of the cylinder tip 2 is fluidly connected to the cylinder body 10, and a refueling valve 12 is provided within the cylinder body 10. The oil supply valve 12 is movable in the axial direction in FIG. 2, and in the illustrated position the valve 12 abuts against the valve seat, preventing oil from flowing. However, refueling lever 1
3 and rotate counterclockwise around the fulcrum 14,
When the lever 13 moves the pin of the valve stem R to the right, the oil supply valve 12 opens. Note that the reference numeral 15 in FIG. 2 indicates the refueling lever 13.
The latch section is shown.

As shown in FIG. 3, an oil inlet 16 having a relatively large diameter is formed in the side of the cylinder body 10. As shown in FIG. A vapor outlet 41 forming a vapor recovery path 17 is formed in the center of the oil inlet 16, and a liquid path 18 is formed around the outer periphery of the vapor outlet 41. Therefore, the liquid passage 18 has an arc shape inside the cylinder body 10, and is formed in a ring shape at the inlet on the upstream side. A female thread 19 is screwed into the end of the oil inlet 16, and an elbow 25, which will be described later, is connected thereto.

As shown in FIG. 2, the vapor recovery pipe 6 is provided along the outside of the cylinder body 10, and is connected to the refueling nozzle 1.
The passage is opened and closed by a vapor valve 21 which is biased in the closing direction by a coil spring 20 at the upper part of the valve. When refueling the vapor valve 21 by operating the refueling lever 13, the operating end 22 of the lever moves the rod 23 of the vapor valve 21 to the left to open the vapor valve 21. Therefore, during refueling, the vapor valve 21 is opened to collect vapor. The vapor recovery pipe 6 is connected to a communication pipe 24 formed at a substantially right angle toward the center of the cylinder body 10 on the downstream side of the vapor valve 21, and communicates with the vapor recovery path 17 described above.

As shown in FIG. 3, the first part 26 connected to the oil inlet 16 of the elbow 25 has a double pipe structure, with the pipe located in the center being the vapor outlet pipe 27 and the outer peripheral part thereof. is the oil introduction pipe 28. In order to connect the first portion 26 of the elbow 25 to the oil inlet 16 of the cylinder body 10, a rotary fastener 29 is fitted on the outer periphery of the oil introduction pipe 28. An oil inlet 1 is provided on the outer peripheral surface of this rotating fastener 29.
A male thread 32 is screwed to engage with a female thread 19 on the inner peripheral surface of the oil inlet pipe 28 , and the end on the oil inlet 16 side engages with a stop ring 30 provided on the outer peripheral surface of the oil inlet pipe 28 . therefore,
Fit the rotary fastener 29 between the stop ring 30 and the stepped portion 31, insert the tip 42 of the vapor outlet pipe 27 into the vapor outlet 41, and rotate the rotary fastener 29 to release the elbow. 25 is rotatably attached to the cylinder body 10 in the state shown in the figure. In this way, the inner peripheral surface of the rotary fastener 29 and the oil introduction pipe 2
The outer peripheral surface of elbow 2 is rotatable, so
5 constitutes a swivel joint in this part. In the figure, both 33 and 34 seal the rotating surfaces with O-rings.

A second portion 60 of the elbow 25 extending perpendicularly to the first portion 26 has a liquid passage 43 in its center communicating with the liquid passage 18, and a passage 44 communicating with the vapor recovery passage 17. This passage 44 is provided on one side, and this passage 44 is provided on the second side.
It communicates with a ring-shaped passage 45 near the end of the section.

In order to connect the double hose 57 to the second part, an intermediate pipe 61 having a flange 66 in the middle is fitted to the end of the inner refueling hose 62.
6 is engaged with the end of a refueling hose 62. The distal end (lower end in FIG. 3) of the intermediate tube 61 is inserted into the opening 46 constituting the liquid path 43. A spacer 65 is attached below the flange 66 of the intermediate tube 61 with a stop ring 67. This spacer 65 has a plurality of through holes 6 in the axial direction.
8 are formed, and these through holes 68 serve as vapor passages communicating with the passage 45. And the intermediate pipe 61 is the clamping body 6
9, it is tightened integrally with the refueling hose 62. A stepped portion 70 formed at the lower end of the outer tube 63 is engaged with this spacer 68, and this outer tube 63 is configured with a large diameter by the oil supply hose 62, so that the outer circumferential surface of the oil supply hose 62 and the outer tube 63 A vapor passage is formed between the inner circumferential surface and the inner peripheral surface. A flange 72 that protrudes radially outward is provided at the middle portion of the outer tube 63, and a plurality of ring-shaped protrusions 75 are provided at predetermined intervals on the upper outer periphery of the flange 72.
75 is formed to protrude outward in the radial direction,
These protrusions 75, 75 and sealing O-ring 85
A bellows-shaped vapor recovery hose 76 is fitted in an airtight manner by engaging the concave portion. And this hose 7
The outer periphery of the portion where 6 is attached is protected by a protection member 77. Second part 60 of elbow 25 and double hose 5
A rotary fastener 73 is used to connect 7.

Opening 4 of vapor passage 45 in second portion 60
A female thread 80 is screwed onto the inner circumferential surface of 8. A male screw 81 is screwed onto the outer circumferential surface of the rotary fastener 73 and is screwed into the female screw 80 . The inner peripheral surface of the rotary fastener 73 rotatably engages with the outer peripheral surface of the outer tube 63, and its upper end engages with a flange 72 and its lower end engages with a stop ring 71 provided on the outer tube 63. ing. therefore,
Insert the lower end of the intermediate tube 61 into the opening 46 and
3 is screwed onto the inner peripheral surface of the opening 48 and tightened, the double hose 57 is attached to the second portion 60.

Next, the operation of the above embodiment will be explained. Remove the refueling nozzle 1 from the case 51 shown in FIG.
3 to open the refueling valve 12 and vapor valve 21. When the refueling nozzle is removed from the nozzle hook N, a pump 54 and a blower 91 are activated by a nozzle switch, so that oil is pumped up from an underground tank 52 through a refueling pipe 53 and is supplied to the automobile from the refueling nozzle 1. That is, oil is fed as shown by the solid line arrow in FIG. The oil supply hose 62 shown in FIG. 3 passes through the intermediate pipe 61 and reaches the elbow 25.
From here to the cylinder body 10, the liquid flows through the liquid path on the outer circumference. The barrel portion 10 is supplied with oil from the nozzle portion 3 through an arcuate liquid path 18 from the side and through the oil supply valve 12 .

Since the vapor valve 21 is open, the vapor generated during refueling is removed from the vapor collector 4, vapor recovery pipe 6,
It passes through the vapor valve 21, the communication pipe 24, the vapor recovery path at the center of the cylinder body 10, and the first portion 26 of the elbow 25.
passing through the center of the spacer 65 from the passage 44 to the through hole 68 of the spacer 65
, between the outer pipe 63 and the refueling hose 62, the vapor hose 7
6 and the refueling hose 62 through the vapor recovery path 90,
As shown in FIG. 1, it is collected into an underground tank 52. This vapor recovery path is indicated by a chain arrow in FIGS. 1, 2, and 3.

[0025]

[Effects of the Invention] As detailed above, according to the present invention,
The oil supply nozzle is composed of a cylinder tip, a cylinder body, and a grip part, and the oil to be supplied is configured to flow in from an oil inlet provided on the side of the cylinder body, and a vapor collector. The collected vapor is led out to the outside along the inlet through the cylinder body, so the grip part is not provided with an oil inflow pipe or a vapor outflow pipe. can be configured to an ergonomically appropriate size. Therefore, according to the present invention, a refueling nozzle with good operability can be obtained, which can be refueled in a short time without increasing the liquid supply resistance.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing how an embodiment of the present invention is used.

FIG. 2 is a partially cutaway front view of an embodiment of a refueling nozzle.

FIG. 3 is a partially cutaway plan view of the embodiment shown in FIG. 2;

[Explanation of symbols]

1... Refueling nozzle 2...Cylinder tip 4...Vapor collector 10... Cylinder body 16...Oil inlet 40...grip part

Claims (1)

[Claims] 1. A refueling nozzle comprising a cylinder tip, a cylinder body, and a grip part, and having an oil inlet opened on a side surface of the cylinder body, wherein a vapor collector is provided in the cylinder tip, and a vapor collector is disposed in the cylinder tip, and the vapor collector is configured to eject vapor from the vapor collector. A refueling nozzle characterized in that the recovery path is guided to the oil inlet through the inside of the cylinder body.