Fuel supply device

Patent metadata

Field	Value
Publication number	US-10500947-B2
Application number	US-201815882027-A
Country	US
Kind code	B2
Filing date	Jan 29, 2018
Priority date	Feb 16, 2017
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

A fuel supply device (FS) includes a filler neck ( 10 ) that includes a nozzle guiding path that guides a fuel supply nozzle (FN), and a fuel passage that is continuous to the nozzle guiding path on a downstream side of the fuel passage, through which fuel that has been discharged from the fuel supply nozzle (FN) passes; a fuel vapor port ( 23 ) located outside of the filler neck ( 10 ) that has a through hole ( 23 H) that communicates with the fuel passage ( 11 Pd); and a vapor introduction body ( 70 ) that guides the fuel vapor from the fuel vapor port to the fuel passage ( 11 Pd). The vapor introduction body ( 70 ) includes a within-through-hole support ( 71 ) that is inserted into and held in the through hole ( 23 H), and includes a vapor passage ( 71 a ) along the through hole ( 23 H), and a changing member ( 72 ) that faces an opening of the vapor passage ( 71 a ) on a side of the fuel passage ( 11 Pd), and is configured to change a direction of flow of the fuel vapor that passes through the vapor passage ( 71 a ) to the side of the fuel passage ( 71 a ). The vicinity of the fuel vapor port in the filler neck is configured compactly.

First claim

What is claimed is:

1. A fuel supply device, comprising:
a filler neck comprising:
a nozzle guiding path that guides a fuel supply nozzle; and
a fuel passage that is continuous to the nozzle guiding path on a downstream side of the fuel passage, through which fuel that has been discharged from the fuel supply nozzle passes;

a fuel vapor port located outside of the filler neck that has a through hole that communicates with the fuel passage; and
a vapor introduction body that guides the fuel vapor from the fuel vapor port to the fuel passage, wherein the vapor introduction body includes:
a within-through-hole support that is inserted into and supported by the through hole, that includes a vapor passage along the through hole, and that is rotatable about a through hole axis in the through hole; and
a changing member that faces an opening of the vapor passage on a side of the fuel passage, and that is configured to change a direction of flow of the fuel vapor that passes through the vapor passage to the side of the fuel passage.

2. The fuel supply device in accordance with claim 1 , wherein the changing member changes the direction of flow of the fuel vapor to at least two directions.

3. The fuel supply device in accordance with claim 2 , further comprising:
a slit that is formed on a side surface of an open end of the within-through-hole support of the vapor introduction body to divide a tip of the open end into a plurality of elastically deformable members, and an engagement hook that passes through and expands from the through hole provided in the fuel vapor port is provided outside of the plurality of members.

4. The fuel supply device in accordance with claim 1 , further comprising:
a slit that is formed on a side surface of an open end of the within-through-hole support of the vapor introduction body to divide a tip of the open end into a plurality of elastically deformable members, and an engagement hook that passes through and expands from the through hole provided in the fuel vapor port is provided outside of the plurality of members.

5. A fuel supply device, comprising:
a filler neck comprising:
a nozzle guiding path that guides a fuel supply nozzle; and
a fuel passage that is continuous to the nozzle guiding path on a downstream side of the fuel passage, through which fuel that has been discharged from the fuel supply nozzle passes;

a fuel vapor port located outside of the filler neck that has a through hole that communicates with the fuel passage; and
a vapor introduction body that guides the fuel vapor from the fuel vapor port to the fuel passage, wherein the vapor introduction body includes:
a within-through-hole support that is inserted into and supported by the through hole, and that includes a vapor passage along the through hole,
a changing member that faces an opening of the vapor passage on a side of the fuel passage, and that is configured to change a direction of flow of the fuel vapor that passes through the vapor passage to the side of the fuel passage,
a slit that is formed on a side surface of an open end of the within-through-hole support of the vapor introduction body to divide a tip of the open end into a plurality of elastically deformable members, and
an engagement hook that passes through and expands from the through hole provided in the fuel vapor port is provided outside of the plurality of members.

6. A fuel supply device, comprising:
a filler neck comprising:
a nozzle guiding path that guides a fuel supply nozzle; and
a fuel passage that is continuous to the nozzle guiding path on a downstream side of the fuel passage, through which fuel that has been discharged from the fuel supply nozzle passes;

a fuel vapor port located outside of the filler neck that has a through hole that communicates with the fuel passage;
an injection port opener/closer configured to open/close the fuel passage; and
a vapor introduction body that guides the fuel vapor from the fuel vapor port to the fuel passage, wherein the vapor introduction body includes:
a within-through-hole support that is inserted into and supported by the through hole, and that includes a vapor passage along the through hole,
a changing member that faces an opening of the vapor passage on a side of the fuel passage, and that is configured to change a direction of flow of the fuel vapor that passes through the vapor passage to the side of the fuel passage, and
on a side of the changing member of the vapor introduction body, a stopper plate configured to regulate an end position of movement toward an open direction of the injection port opener/closer when the fuel passage has opened.

7. The fuel supply device in accordance with claim 5 , further comprising:
an injection port opener/closer configured to open/close the fuel passage; and
on a side of the changing member of the vapor introduction body, a stopper plate configured to regulate an end position of movement toward an open direction of the injection port opener/closer when the fuel passage has opened.

Assignees

• Toyoda Gosei Kk

Inventors

• Suda Masahiro
• Miyoshi Keiji
• Nonaka Shintaro

Classifications

• B60K2015/03523

  Arrangements of the venting tube · CPC title

• B67D7/04

  for transferring fuels, lubricants or mixed fuels and lubricants · CPC title

• F02M25/0872

  Details of the fuel vapour pipes or conduits · CPC title

• B60K15/03504 Primary

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

• B60K15/04

  Tank inlets (B60K15/077 takes precedence) · CPC title