Oil vapor recovery type fuel dispensing gun
AssigneeKumo Industry Co., Ltd.
InventorJang-woo Eum
Life of this patent
Estimating the term…
Abstract
Disclosed is a fuel dispensing gun which can supply oil vapor generated inside a vehicle fuel tank back to inside the fuel tank by recovering the oil vapor through an oil vapor recovery device in a fuel dispensing nozzle. The fuel dispensing gun includes a main body connected to a lubricator and the fuel dispensing nozzle, a collection cover which is opened at a front end of the nozzle and is closed at a rear end of the nozzle is installed around the nozzle, a Venturi tube includes an inlet portion, an outlet portion, and a neck portion smaller than the inlet and outlet portions to form a vacuum portion in the fuel dispensing nozzle by changing the pressure of the fuel along the fuel dispensing nozzle, and the vacuum portion and the inside of the collection cover are connected with each other.
Claims15
A fuel dispensing gun capable of vapor recovery, which includes a main body connected to a body of a fuel dispenser and a fuel dispensing nozzle, the fuel dispensing gun comprising:
- a Venturi tube mounted inside a flow channel of the fuel dispensing nozzle, the Venturi tube having an inlet and an outlet and a neck portion having a smaller diameter than the inlet and the outlet so that pressure of a fluid supplied is changed along a longitudinal direction of the fuel dispensing nozzle and a vacuum part is formed at a predetermined position in the longitudinal direction inside the fuel dispensing nozzle;
- and
- a through hole formed in the fuel dispensing nozzle and communicatingly connected with the vacuum part.
A fuel dispensing gun capable of vapor recovery, which includes a main body connected to a body of a fuel dispenser and a fuel dispensing nozzle, the fuel dispensing gun comprising:
- a pouch-shaped collection cover that is opened in a direction of the front end of the fuel dispensing nozzle and closed in a direction of the rear end of the fuel dispensing nozzle and is mounted on the fuel dispensing nozzle, which acts as a central axis;
- a Venturi tube mounted inside a flow channel of the fuel dispensing nozzle, the Venturi tube having an inlet and an outlet and a neck portion having a smaller diameter than the inlet and the outlet so that pressure of a fluid supplied is changed along a longitudinal direction of the fuel dispensing nozzle and a vacuum part is formed at a predetermined position in the longitudinal direction inside the fuel dispensing nozzle;
- and
- communicating means for communicatingly connecting the vacuum part and the open side of the collection cover.
Dependencies are inferred from the claim text.