Resinous filler port

Patent metadata

Field	Value
Publication number	US-2017050513-A1
Application number	US-201615340631-A
Country	US
Kind code	A1
Filing date	Nov 1, 2016
Priority date	Mar 16, 2015
Publication date	Feb 23, 2017
Grant date	—

Abstract

The resinous filler port includes: a filler-port body including a nozzle insertion port through which a filler nozzle is insertable, a fuel supply port supplying a fuel supplied from the filler nozzle to a fuel tank by way of a filler tube, and a vapor inlet port letting flow in vapors arising from the fuel and passing through a breather tube from a side of the fuel tank; a joint formed to penetrate through from one of opposite ends thereof to another one of the opposite ends, fitted undetachably into and around the vapor inlet port at the one of the opposite ends, and connected with the breather tube at the other one of the opposite ends; and a flow control valve accommodated inside the joint, and controlling a flow volume of the vapors flowing into the filler-port body from the breather tube.

First claim

What is claimed is:

1 . A resinous filler port comprising:
a filler-port body made of resin, and including a nozzle insertion port through which a filler nozzle is insertable, a fuel supply port supplying a fuel supplied from the filler nozzle to a fuel tank by way of a filler tube, and a vapor inlet port letting flow in vapors arising from the fuel and passing through a breather tube from a side of the fuel tank; a joint made of resin, and formed to penetrate through from one of opposite ends thereof to another one of the opposite ends, fitted undetachably into and around the vapor inlet port at the one of the opposite ends, and connected with the breather tube at the other one of the opposite ends; and a flow control valve accommodated inside the joint, and controlling a flow volume of the vapors flowing into the filler-port body from the breather tube.

2 . The resinous filler port according to claim 1 , wherein:
the filler-port body further includes a tubular fit-in portion provided with the vapor inlet port: the flow control valve is movable in an interior of the joint in a distribution direction of the vapors in compliance with a pressure of the vapors, and controls a flow volume of the vapors in compliance with a position thereof in the distribution direction; and at least some of a movement range of the flow control valve is located on a diametrically inner side of the tubular fit-in portion.

3 . The resinous filler port according to claim 2 , wherein the joint includes:
an outer cylinder formed at the one of opposite ends of the joint, and fitted around an outer peripheral face of the tubular fit-in portion that is located on a diametrically inner side of the joint; an inner cylinder formed at the one of the opposite ends of the joint, located on a diametrically inner side of the outer cylinder by way of a clearance, located on a diametrically inner side of the tubular fit-in portion, and guiding a movement of the flow control valve; and a breather-tube connector portion formed at the other one of the opposite ends of the joint, and fitted into the breather tube.

4 . The resinous filler port according to claim 3 further comprising a seal member interposed between an outer peripheral face of the inner cylinder and an inner peripheral face of the tubular fit-in portion.

5 . The resinous filler port according to claim 1 further comprising a cap attached to an opening at the one of opposite ends of the joint to inhibit the flow control valve from falling off from the opening at the one of the opposite ends of the joint, wherein:
the joint, the flow control valve, and the cap make a unit to be fitted into and around the vapor inlet port.

Assignees

• Sumitomo Riko Co Ltd

Inventors

• Hatanaka Kazuki
• Shimojo Makoto
• Fukuyasu Tomoyuki
• Miyajima Atsuo

Classifications

• F02M25/0836

  Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold · CPC title

• F02M25/0872

  Details of the fuel vapour pipes or conduits · CPC title

• B60K2015/03552

  the venting means are integrated into the fuel filler pipe · CPC title

• B60K15/03504

  adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems · CPC title

• B60K15/03519 Primary

  Valve arrangements in the vent line · CPC title