# US 10,500,947 B2 · Fuel supply device

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- Number: US 10,500,947 B2
- Document ID: US10500947B2
- Status: Granted
- Kind: B2
- Application number: 15/882,027
- Filed: 2018-01-29
- Published: 2018-08-16
- Granted: 2019-12-10
- Earliest claimed: 2017-02-16
- Assignees: Toyoda Gosei Co., Ltd.
- Applicants: Toyoda Gosei Co., Ltd.
- Inventors: Masahiro Suda; Keiji Miyoshi; Shintaro Nonaka
- Web page: https://patentgrep.com/patent/US10500947B2

## CPC

- B60K 15/03504: {adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems}
- B60K 15/035: characterised by venting means
- B60K 15/04: Tank inlets (B60K15/077 takes precedence)
- B60K 2015/03523: {Arrangements of the venting tube}
- B60K 2015/03538: {the venting tube being connected with the filler tube}
- B60K 2015/03576: {Venting during filling the reservoir}
- B60K 2015/0458: {Details of the tank inlet}
- B60K 2015/0461: {comprising a filler pipe shutter, e.g. trap, door or flap for fuel inlet}
- B60K 2015/0477: {Details of the filler neck tank side}
- B67D 7/04: for transferring fuels, lubricants or mixed fuels and lubricants
- B67D 7/42: Filling nozzles
- Y02T 10/12: Improving ICE efficiencies
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B67D: DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR (cleaning pipes or tubes or systems of pipes or tubes B08B9/02; emptying or filling of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for B67C; water supply E03; pipe systems F17D; domestic hot-water supply systems F24D; measuring volume, volume flow, mass flow or liquid level, metering by volume G01F; coin-freed or like apparatus G07F)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## 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 (23H) that communicates with the fuel passage (11Pd); and a vapor introduction body (70) that guides the fuel vapor from the fuel vapor port to the fuel passage (11Pd). The vapor introduction body (70) includes a within-through-hole support (71) that is inserted into and held in the through hole (23H), and includes a vapor passage (71a) along the through hole (23H), and a changing member (72) that faces an opening of the vapor passage (71a) on a side of the fuel passage (11Pd), and is configured to change a direction of flow of the fuel vapor that passes through the vapor passage (71a) to the side of the fuel passage (71a). The vicinity of the fuel vapor port in the filler neck is configured compactly.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 2)

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.

### Claim 4 (depends on 1)

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.

### Claim 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.

### Claim 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.

### Claim 7 (depends on 5)

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.