JP2521321Y2 - Vapor recovery nozzle for gasoline dispensing pump - Google Patents

Description

[Detailed description of the device]

[0001]

The present invention relates to a gasoline dispensing pump for refueling gasoline while recovering volatile hydrocarbons, which is compatible with stage 2 vapor recovery, which is required by law in some parts of the United States. The present invention relates to a hydrocarbon vapor recovery nozzle device for industrial use.

[0002]

2. Description of the Related Art A nozzle device for a gasoline dispensing pump usually does not recover hydrocarbon vapor, but only discharges gasoline. However, when the gasoline spills out of the nozzle vigorously, the volatile hydrocarbons leak out from between the fuel tank inlet pipe of the vehicle and the nozzle inserted therein, and there is a danger of ignition, fuel loss, This causes the vaporized gasoline to be sucked in by the operator. US Design Patent No. 3
No. 17969 discloses a nozzle in which the inlet of a vehicle fuel tank during refueling can be covered with a dish-like member in order to prevent such vaporization of gasoline components. However, U.S. Pat. No. 3,179,693 is not a vapor recovery nozzle, so vaporized hydrocarbons easily escape from the gap to the outside.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to make a steam recovery nozzle more effective by combining the dish-shaped member and the steam recovery nozzle shown in US Pat. No. 3,179,696. In addition, it aims to make it easy to understand that the vapor recovery nozzle is functioning by making it possible to check the movement of fuel and the flow of gas for vapor recovery at the same time during refueling. is there.

[0004]

The inventor of the present invention draws out the gasoline from the tip 3 of the gasoline passage inserted into the fuel filler port of the automobile by grasping and pulling the grip 1 toward the grip 2, and at the same time when refueling the gasoline. In a hydrocarbon vapor recovery nozzle device for gasoline dispensing and refueling, which sucks gas from a hydrocarbon recovery passage provided coaxially with the gasoline passage to recover the volatilized hydrocarbon, At the base, a dish-like body 4 having a concave portion facing the vehicle body side so as to cover the fuel filling port of the automobile during refueling is provided, and a concentric circular and radial baffle plate 5 is provided on the concave portion side of the dish-like body 4. Then, a plurality of circumferentially arranged hydrocarbon recovery holes 6 are provided near the tip of the gasoline passage tip 3 as an inlet to the hydrocarbon recovery passage, and the gasoline flow passage and the hydrocarbon recovery flow are provided. On the road The above object can be achieved by the hydrocarbon vapor recovery nozzle device for gasoline dispensing refueling, which is characterized in that the flow operation confirming means 7 and 8 are arranged side by side at positions where the worker can simultaneously confirm during refueling. I have found

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a tubular gasoline passage tip 3 which is inserted into a fuel tank inlet during refueling.
A plurality of holes 6 arranged in a circle are formed near the tip of the so that they communicate with a vapor recovery gas suction passage arranged coaxially with the gasoline passage. The gasoline that has exited through the nozzle is partially vaporized and tends to exit from between the inlet pipe of the fuel tank of the vehicle and the gasoline passage tip 3 inserted therein. However, if gas is continuously sucked from the hole 6 during refueling, gas flows from the inlet direction of the fuel tank to the hole 6 near the tip of the tip portion 3, so that gasified gasoline flows from the hole 6. Enter the hydrocarbon vapor recovery passage and do not exit.

Further, due to the dish-like body 4, the clearance between the vehicle body surface and the nozzle is reduced, and the flow of gas from the fuel tank inlet of the automobile toward the hole 6 near the tip of the gasoline passage tip portion 3 is ensured. Prevents hydrocarbons from escaping. The concentric circular and radial baffle means 5 provided on the concave side of the dish 4 suppress the radial and spiral movements of the gas between the vehicle body and the dish 4, and the hydrocarbon recovery passageway. It can play the role of temporarily capturing the hydrocarbon gas that has been vaporized before the suction force of.

The flow confirmation means 7 and 8 for the flow passage of gasoline and the flow passage of gas for recovering hydrocarbons respectively limit rotation of a paddle wheel (turbine) 9 provided in the flow passage or by the flow. It is possible to use a flow confirmation means for confirming the flow by looking through the transparent observation window to see the movement of the small spheres inside the place.

These flow confirming means are arranged side by side on the upper surface in a refueling state at a position where both can be seen at the same time during refueling, that is, a portion between the grip portion and the gasoline passage tip portion 3. Therefore, it is possible for an operator, or in the case of an unmanned gas station, a gasoline purchaser to easily check whether or not gasoline refueling and hydrocarbon vapor recovery are operating at the same time while performing a fueling operation.

[Brief description of drawings]

FIG. 1 is a left side view of the nozzle of the present invention.

FIG. 2 is a front view of the nozzle of the present invention.

FIG. 3 is a plan view of the nozzle of the present invention.

FIG. 4 is a bottom view of the nozzle of the present invention.

FIG. 5 is a right side view of the nozzle of the present invention.

FIG. 6 is a rear view of the nozzle of the present invention.

FIG. 7 is a perspective view of the nozzle of the present invention.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Terence Leon Lumbard United States 60504 Aurora Downing Court, Illinois 2752 (72) Creator Wolfgang Harman Kochi United States 60510 Batavia Jagbark Drive 946 South 2 (72) Creator Michael Stefan Butovic United States 60505 Aurora Speriorio Street, Illinois 1316

Claims (1)

(57) [Scope of utility model registration request] 1. When the grip 1 is pulled toward the grip 2 to draw out the gasoline from the tip 3 of the gasoline passage inserted into the filling port of the automobile, the hydrocarbons volatilized during the filling of the gasoline are recovered. In order to suck gas from a hydrocarbon recovery passage coaxially provided with the gasoline passage, a hydrocarbon vapor recovery nozzle device for gasoline dispensing refueling is provided at the base of the gasoline passage leading end portion 3 while the vehicle is being refueled. The dish-shaped body 4 is provided so that the concave portion faces the vehicle body side so as to cover the fuel filler port, and the concentric circular and radial baffle plates 5 are provided on the concave portion side of the dish-shaped body 4, and the hydrocarbon recovery passageway is provided. A plurality of circumferentially-arranged holes 6 for collecting hydrocarbons are provided near the tip of the gasoline passage 3 as an inlet to the flow passage for confirming the flow operation in the flow passage for gasoline and the flow passage for hydrocarbon collection, respectively. 7, 8. A hydrocarbon vapor recovery nozzle device for gasoline dispensing refueling, characterized in that 8 are arranged side by side at positions that can be simultaneously checked by workers during refueling.