RU193208U1 - Upgraded gun for a system for collecting oil vapor from vehicle tanks at a gas station with an indication of a leaky connection between the gun and tank - Google Patents

Abstract

This utility model relates to the technical means of gas stations for dispensing petroleum products and trapping hydrocarbon vapors when refueling vehicles at a gas station. The upgraded gun for a system for trapping oil vapor from motor vehicle tanks at a gas station with an indication of a leaky connection between the gun and tank contains a pipe for venting the air-fuel mixture, outlet pipe, nozzle, ball, membrane, valve spring, valve, thermal insulation, rotary connection, cut-off spring, lever, a bracket, a sealing cuff in the form of a conical corrugation, a signal channel. Moreover, it additionally contains a gas analyzer that determines the concentration of oxygen in hydrocarbon vapors pumped through the pipe to exhaust the air-fuel mixture, which, when the threshold value is exceeded, gives a signal to the indicator, providing information about the leaky connection of the gun and tank. The technical result provided by the given set of features is the ability to control the evaporation of petroleum products when the gun and tank of the vehicle are not tight when refueling at gas stations by using a gas analyzer and indicator.

Description

This utility model relates to the technical means of gas stations for dispensing petroleum products and trapping hydrocarbon vapors when refueling vehicles at gas stations.

A device is known from the prior art (RF Patent No. 2454358 “Device for reducing losses of petroleum products”, B65B 3/04 - published on June 27, 2012), consisting of two parts: a fueling gun with a mount containing an automatic stop system fuel dispensing when the tank is full or the pistol falls out of the vehicle’s gas tank, an additional tube designed to return the fuel vapor displaced when refueling the vehicle. At the same time, the nozzle of the refueling gun is supplemented by a fastener consisting of a sleeve dressed on the nozzle of the refueling pistol, and capturing levers attached to it. The device also contains a lever designed to translate the mount into working position, anther, necessary to protect the structure from external mechanical influences and to return the gripping levers to their original position, designed to fix the filling gun in the receiving device, which serves to create a sealing system for unloading and loading operations for fuel dispensers with a vapor extraction system displaced when refueling the vehicle and a receiving device, which is a benzo cover aka vehicle, designed as a housing containing a pipe for supplying fuel to a vacuum tube, a gas outlet duct, a valve system installed inside the gas outlet channel and at the end of the tube for supplying the fuel and a system of sealing rings.

A device for reducing losses of oil products has the disadvantages of:

- the design of tight rings does not possess universality;

- there is no description of the design of the fuel line.

A device is known (Application for invention No. 94027107/13 “Refueling gun”, B67D 5/12 - published on 08/10/1996), containing a supply and drain pipe, a shut-off mechanism and flow control means, and it is equipped with a drip tray, and regulation of fluid flow is made in the form of a valve with a spring.

The refueling gun has the disadvantages of:

- the device does not capture vapors of hydrocarbons.

The closest in technical essence to the claimed object is a utility model (RF Patent No. 151525 “Modernized gun for a system for collecting oil vapor from motor vehicle tanks at gas stations”, B60S 5/02 - published on 04/10/2015), containing a tube for fuel supply, gas channel, while the upgraded gun has a nozzle, ball, membrane, valve spring, valve, thermal insulation, rotary joint, cut-off spring, lever, bracket, sealing sleeve in the form of a conical corrugation, signal channel.

The upgraded gun for the system for collecting oil vapor from vehicle tanks at a gas station has the following disadvantages:

- there is no possibility of signaling leaks in the connection between the gun and the tank of the vehicle.

The problem to which the claimed utility model is directed is the ability to control the tightness of the connection between the pistol and the tank of the vehicle when refueling at gas stations.

This task is achieved due to the fact that the upgraded gun for the system for collecting oil vapor from vehicle tanks at a gas station with an indication of a leaky connection between the gun and tank contains a pipe for exhausting the air-fuel mixture, an outlet pipe, a nozzle, a ball, a membrane, a valve spring, a valve, and thermal insulation , rotary joint, cut-off spring, lever, bracket, sealing lip in the form of a conical corrugation, signal channel, gas analyzer that determines the concentration of oxygen in hydrocarbon vapors pumped through the tube for the removal of the air-fuel mixture, which, when the threshold value is exceeded, gives a signal to the indicator, which provides information about the leaky connection of the gun and tank.

The technical result provided by the given set of features is the ability to control the leaky connection of the gun and tank of the vehicle when refueling at gas stations by using a gas analyzer and indicator.

The essence of the utility model is illustrated in FIG. 1, which shows a general view of an upgraded gun for a system for collecting oil vapor from vehicle tanks at a gas station with an indication of a leaky connection between the gun and tank.

An upgraded gun for a system for collecting petroleum vapor from vehicle tanks at a gas station with an indication of a leaking gun and tank connection includes a nozzle 1, a ball 2, a membrane 3, a valve spring 4, a valve 5, thermal insulation 6, a rotary joint 7, a cut-off spring 8, a lever 9, a bracket 10, a sealing sleeve in the form of a conical corrugation having universality with respect to various vehicles 11, a pipe for exhausting the air-fuel mixture 12, an outlet pipe 13, a signal channel 14 for automatic th fuel shut-off, the analyzer 15 and the indicator 16.

An upgraded gun for a system for collecting oil vapor from vehicle tanks at a gas station with an indication of a leaky connection between the gun and the tank works as follows: fuel expires from the outlet pipe 13 into the fuel tank. As the tank is filled, hydrocarbon vapors are displaced, which are pumped out through the pipe to exhaust the air-fuel mixture 12 and enter the fuel tank, and the sealing cuff in the form of a truncated cone 11 prevents intake of air from the environment. At the same time, a gas analyzer 15 is installed in the tube for discharging the air-fuel mixture 12, which determines the oxygen concentration in the fuel-air mixture, and when the threshold value is exceeded, the gas analyzer 15 sends a signal to the indicator 16, which signals a leaky connection between the gun and the tank.

The signal channel 14 communicates with the outlet pipe 13 through the valve 5, and a nozzle 1 is installed at the end of the signal channel 14. When the fuel runs out of the output pipe 13, a vacuum is created in the signal channel. As soon as the fuel level rises to the signal channel 14 or the ball 2 blocks it when the filling gun falls out, the nozzle is triggered, the vacuum increases sharply and the membrane 3 rises, releasing the piston with the cutoff spring 8, valve 5 will hit the seat and block the fuel flow. Moreover, the sealing cuff in the form of a conical corrugation 11 has the versatility to different sizes of filler necks of tanks of vehicles.

Claims (1)

An upgraded gun for a system for collecting petroleum vapor from vehicle tanks at a gas station with an indication of a leaking gun and tank connection, containing a pipe for exhausting the air-fuel mixture, an outlet pipe, a nozzle, a ball, a membrane, a valve spring, a valve, thermal insulation, a rotary joint, a cut-off spring, a lever, a bracket, a sealing collar in the form of a conical corrugation, a signal channel, characterized in that it further comprises a gas analyzer that determines the concentration of oxygen in carbohydrate vapors odov, pumped through the tube for discharging the air-fuel mixture which is in excess of the threshold value delivers a signal to the indicator providing information about the hermetic connection gun and the tank.

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