Fuel supply system

Patent metadata

Field	Value
Publication number	US-9908405-B2
Application number	US-201514722298-A
Country	US
Kind code	B2
Filing date	May 27, 2015
Priority date	Jun 9, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A fuel supply system includes a filler neck that is provided in a filler neck body formed in a tubular shape and has a pipe connection structure. A first member is formed separately from the filler neck. A second member is formed separately from the filler neck to be different from the first member. The first member and the second member are engaged with each other. At least one of the first member and the second member includes a protective portion that is configured to cover at least part of the pipe connection structure in a state that the first member and the second member are engaged with each other and positions of the first member and the second member are fixed relative to the filler neck. This configuration suppresses damage of the pipe connection structure that is connected with the filler neck in the fuel supply system.

First claim

The invention claimed is:

1. A fuel supply system, comprising:
a filler neck that has (i) a filler neck body with a tubular shape and (ii) a pipe connection structure which is a breather port formed in the filler neck body, the breather port is configured to connect to a breather pipe, the breather port is branched from the filler neck body;
a protective member that is configured to cover the filler neck and the breather port at a location that the breather port branches from the filler neck body, the protective member comprises a first member and a second member, wherein
the first member is formed separately from the filler neck; and
the second member is formed separately from the filler neck to be different from the first member, and the first member and the second member are engaged with each other, wherein

at least one of the first member and the second member includes a protective portion that is configured to cover at least part of the breather port in a state that the first member and the second member are engaged with each other and positions of the first member and the second member to the filler neck are fixed.

2. The fuel supply system according to claim 1 ,
wherein the filler neck has a fixation structure that fixes at least one of the positions of the first member and the second member to the filler neck.

3. The fuel supply system according to claim 2 ,
wherein the protective portion includes a first protective portion included in the first member and a second protective portion included in the second member, and
in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first protective portion and the second protective portion are configured to cover the breather port as curved surfaces parallel to a central axis of the filler neck body formed in the tubular shape, and the respective curved surfaces parallel to the central axis of the filler neck body to cover the breather port do not overlap with each other.

4. The fuel supply system according to claim 3 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member and the second member are configured to cover the breather port as the curved surfaces parallel to the central axis of the filler neck body and cover the breather port on a side of the filler neck receiving a supplied fuel along the central axis of the filler neck body.

5. The fuel supply system according to claim 2 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member is formed to cover the breather port as a curved surface parallel to a central axis of the filler neck body formed in the tubular shape.

6. The fuel supply system according to claim 5 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member and the second member are configured to cover the breather port as the curved surfaces parallel to the central axis of the filler neck body and cover the breather port on a side of the filler neck receiving a supplied fuel along the central axis of the filler neck body.

7. The fuel supply system according to claim 1 ,
wherein the protective portion includes a first protective portion included in the first member and a second protective portion included in the second member, and
in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first protective portion and the second protective portion are configured to cover the breather port as curved surfaces parallel to a central axis of the filler neck body formed in the tubular shape, such that the respective curved surfaces parallel to the central axis of the filler neck body to cover the breather port do not overlap with each other.

8. The fuel supply system according to claim 7 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member and the second member are configured to cover the breather port as the curved surfaces parallel to the central axis of the filler neck body and cover the breather port on a side of the filler neck receiving a supplied fuel along the central axis of the filler neck body.

9. The fuel supply system according to claim 8 ,
wherein the protective portion is configured to cover the breather port as a curved surface parallel to a central axis of the breather port.

10. The fuel supply system according to claim 1 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member are fixed relative to the filler neck, the first member is formed to cover the breather port as a curved surface parallel to a central axis of the filler neck body formed in the tubular shape.

11. The fuel supply system according to claim 10 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member and the second member are configured to cover the breather port as the curved surfaces parallel to the central axis of the filler neck body and cover the breather port on a side of the filler neck receiving a supplied fuel along the central axis of the filler neck body.

12. The fuel supply system according to claim 11 ,
wherein the protective portion is configured to cover the breather port as a curved surface parallel to a central axis of the breather port.

13. The fuel supply system according to claim 1 ,
wherein the protective portion is configured to cover the breather port as a curved surface parallel to a central axis of the breather port.

14. The fuel supply system according to claim 1 , wherein
the breather port is hollow cylindrical member branched from the filler neck body, and the breather port is formed to have a smaller diameter than a diameter of the filler neck body.

15. The fuel supply system according to claim 1 , wherein
the protective member is fixed at a position of the filler neck body to which the breather port is connected,
the first member and the second member are located at positions away from a joint of the filler neck body with the breather port, and
the first member and the second member cover the joint of the filler neck body with the breather port.

16. The fuel supply system according to claim 15 , wherein
the filler neck body has a groove formed along an outer circumference of the filler neck body, and
the first member of the protective member includes a large diameter portion fastened in the groove of the filler neck body.

17. The fuel supply system according to claim 1 ,
wherein in the state that the first member and the second member are engaged with each other and the positions of the first member and the second member to the filler neck are fixed, the first member is formed to cover the breather port as a curved surface parallel to a central axis of the filler neck body formed in the tubular shape, and
a

Assignees

• Toyoda Gosei Kk

Inventors

• Kito Hiroaki
• Hiramatsu Yoshinari

Classifications

• B60K2015/0477

  Details of the filler neck tank side · CPC title

• B60K2015/03552

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

• B60K15/05 Primary

  Inlet covers · CPC title

• B60K2015/03528

  Mounting of venting tubes · CPC title

• B60K15/035 Primary

  characterised by venting means · CPC title