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Valve device for fuel tank

A technology of fuel tanks and valve devices, applied in the direction of valve devices, power devices, ventilation devices, etc.

Active Publication Date: 2019-11-01
PIOLAX CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the fuel flows into the upper space with a large flow force, there is a problem that it will flow into the upper end opening of the breather pipe over the wall portion at the peripheral edge of the partition wall.

Method used

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  • Valve device for fuel tank
  • Valve device for fuel tank
  • Valve device for fuel tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Below, refer to Figure 1~4 One embodiment of the fuel tank valve device according to the present invention will be described.

[0041] Such as figure 1 As shown, the fuel tank valve device 10 of this embodiment (hereinafter, simply referred to as "valve device 10") has a housing 15, and the housing 15 is provided with: a breather chamber R, which is provided with a first opening 23 and a bottom surface. The second opening 24 ; and the valve chamber V provided below the ventilation chamber R so as to communicate with the first opening 23 .

[0042] Such as figure 1 As shown, the casing 15 of this embodiment is composed of the following components: a casing 20 formed in a cylindrical shape; a cover 30 attached to the lower opening of the casing 20; and a top wall 80 disposed above the casing 20. .

[0043] Such as figure 2 As shown, the housing 20 has a substantially cylindrical peripheral wall 21 with an open bottom, and a partition wall 22 is provided on the up...

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PUM

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Abstract

The present invention provides a valve device for a fuel tank that suppresses fuel from flowing into a tank disposed outside the fuel tank. The fuel tank valve device (10) includes: a casing (15), which has a vent chamber (R) and a valve chamber (V), and the vent chamber (R) is provided with a first opening (23) and a second opening (23) on the bottom surface. Opening (24); and a float valve (40), which is configured to be able to lift in the valve chamber (V), and a tank connection pipe (28) communicating with the second opening (24) is extended on the casing (15) A vertical wall (25) is formed between the peripheral portion of the first opening (23) and the peripheral portion of the second opening (23) on the bottom surface of the ventilation chamber (R), and a vertical wall (25) is formed from the side of the vertical wall (25) toward the second 1. An eaves-shaped wall portion (27) extending on the side of the opening (23).

Description

technical field [0001] The present invention relates to a valve device for a fuel tank, which is mounted on a fuel tank of an automobile or the like, and which suppresses fuel from flowing out of the fuel tank. Background technique [0002] For example, a valve device is attached to a fuel tank of an automobile to suppress leakage of fuel in the fuel tank to the outside of the fuel tank when the automobile is turned or tilted. [0003] For example, a float valve device is described in the following patent document 1. The float valve device includes: a housing that is divided into a lower space and an upper space through a partition wall, and a vent pipe is installed on the outer wall of the upper space. The partition is provided with an opening, and a valve seat is formed on the lower surface of the housing; the float valve is configured to slide up and down in the space below; Arranged between the bottom surface of the body to pre-tighten the float valve to the opening of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K15/035F02M37/00
CPCB60K15/03B60K15/035B60K2015/03289F02M37/0023F02M25/0836F02M25/0872F16K24/044F16K27/07
Inventor 三原健太
Owner PIOLAX CO LTD