Fuel tank
First Claim
1. A fuel tank comprising:
- a tank body arranged to store fuel therein, the tank body including a fuel inlet extending upwardly from a top surface of the tank body and a cylindrical member extending downwardly from the fuel inlet;
a fuel cap arranged to be removably installed onto a top of the fuel inlet; and
a discharge member including a discharge passage in communication with a canister arranged to adsorb fuel vapor from the tank body;
whereinthe cylindrical member includes a lower end portion and an upper end portion, the lower end portion arranged lower than the top surface of the tank body and projecting downwardly in the fuel inlet, the upper end portion including a communicating passage arranged to bring an inside of the cylindrical member into communication with an outside of the cylindrical member, an outer circumferential surface of the upper end portion and an inner circumferential surface of the fuel inlet defining a space therebetween maintained in a hermetically sealed state, the communicating passage being arranged lower than the hermetically sealed space and to extend substantially vertically;
the discharge member includes an opening on the inside of the cylindrical member at a position higher than the lower end portion of the cylindrical member; and
the communicating passage is arranged, during fueling of the fuel tank, to allow air to escape from the tank body into the fuel inlet.
1 Assignment
0 Petitions
Accused Products
Abstract
A fuel tank has a tank body and a fuel inlet projecting upwardly from the tank body. The fuel tank includes a cylindrical member extending into the tank body, a canister, and a discharging passage in communication with the canister housing an adsorbent for absorbing fuel vapor from the fuel tank. A space between an outer circumferential surface of the cylindrical member and an inner circumferential surface of the fuel inlet is hermetically sealed by a seal. The cylindrical member has a passage for communicating an inside of the cylindrical member with a portion of an outside of the cylindrical member that is lower than the hermetically sealed space. The passage allows air in the tank body to enter the fuel inlet when fuel overflows from the fuel inlet, thereby inhibiting flow of fuel into the canister through the discharging passage.
5 Citations
9 Claims
-
1. A fuel tank comprising:
-
a tank body arranged to store fuel therein, the tank body including a fuel inlet extending upwardly from a top surface of the tank body and a cylindrical member extending downwardly from the fuel inlet; a fuel cap arranged to be removably installed onto a top of the fuel inlet; and a discharge member including a discharge passage in communication with a canister arranged to adsorb fuel vapor from the tank body;
whereinthe cylindrical member includes a lower end portion and an upper end portion, the lower end portion arranged lower than the top surface of the tank body and projecting downwardly in the fuel inlet, the upper end portion including a communicating passage arranged to bring an inside of the cylindrical member into communication with an outside of the cylindrical member, an outer circumferential surface of the upper end portion and an inner circumferential surface of the fuel inlet defining a space therebetween maintained in a hermetically sealed state, the communicating passage being arranged lower than the hermetically sealed space and to extend substantially vertically; the discharge member includes an opening on the inside of the cylindrical member at a position higher than the lower end portion of the cylindrical member; and the communicating passage is arranged, during fueling of the fuel tank, to allow air to escape from the tank body into the fuel inlet. - View Dependent Claims (2, 3, 4)
-
-
5. A fuel tank comprising:
-
a tank body arranged to store fuel therein, the tank body including a fuel inlet extending upwardly from a top surface of the tank body and a cylindrical member extending downwardly from the fuel inlet, the fuel inlet arranged to be removably coupled to a fuel cap; a discharge member including a discharge passage in communication with an inside portion of the cylindrical member and with a canister arranged to adsorb fuel vapor from the tank body, the discharge member including an opening positioned higher than a lower end portion of the cylindrical member;
whereinthe cylindrical member includes a distal end positioned below the top surface of the tank body; an outer surface of the cylindrical member and an inner surface of the fuel inlet define a sealed space therebetween; the cylindrical member includes a communicating passage arranged to communicate the inside portion of the cylindrical member with an outside portion of the cylindrical member, the outside portion being lower than the sealed space; and the communicating passage is arranged, during fueling of the fuel tank, to allow air to escape from the tank body into the fuel inlet. - View Dependent Claims (6, 7)
-
-
8. A fuel tank comprising:
-
a tank body arranged to store fuel therein; a fuel inlet extending upwardly from a top surface of the tank body, the fuel inlet arranged to be removably coupled to a fuel cap; a communicating passage arranged in the tank body to allow air in the tank body to enter the fuel inlet when the fuel cap is removed and fuel is oversupplied into and overflows from the fuel inlet;
whereinthe air is allowed to escape out of the fuel inlet so that a fuel level in the fuel inlet declines and a fuel level in the tank body rises. - View Dependent Claims (9)
-
Specification