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Fuel tank opening-closing device

A technology of opening and closing device and fuel tank, which is applied in the layout, power plant, transportation and packaging combined with the fuel supply of internal combustion engines, and can solve the problems of water or foreign matter entering or attaching, aging, and reducing the sealing performance of flap valves. simple structure

Active Publication Date: 2010-09-08
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that water or foreign matter from the outside easily enters or adheres to the gap around the opening of the above-mentioned injection port, resulting in a decrease in the sealing performance of the flapper valve or deterioration.

Method used

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  • Fuel tank opening-closing device
  • Fuel tank opening-closing device
  • Fuel tank opening-closing device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0048] (1) Schematic structure of the opening and closing device of the fuel tank

[0049] figure 1 It is a perspective view showing the rear part of a vehicle equipped with a diesel engine according to the first embodiment of the present invention, and showing a state where the fuel filler cap is opened. A fuel supply cap FL for supplying fuel (light oil) is supported openably and closably at the vehicle body rear portion of the vehicle. The fuel supply cap FL is supported on the outer panel of the vehicle body so as to be openable and closable via a hinge FLb in accordance with a cover main body FLa in the shape of the outer panel of the vehicle body. The space exposed by opening the fuel supply cover FL is the fuel supply chamber FR, and the fuel tank opening and closing device 10 supported on the base plate BP is disposed in the fuel supply chamber FR. The opening and closing device 10 for the fuel tank is a mechanism for supplying fuel to the fuel tank without a fuel ca...

no. 2 Embodiment

[0079] Figure 10 It is an exploded perspective view showing a fuel tank opening and closing device 10B according to the second embodiment. The present embodiment is characterized by the structure of the nozzle detection mechanism 50B that detects the insertion of the fuel supply nozzle. That is, the nozzle detection member 51B of the nozzle detection mechanism 50B has: an introduction pressing portion 53B disposed on both sides of the fuel passage 11P; an elastic supporting piece 56B connected to one end of the introduction pressing portion 53B and extending upward; The arm 57B is connected to the upper part of the elastic supporting piece 56B. The connection fixing arm 57B is a semicircular-arc belt-shaped member, and is fixed to the opening forming member. According to this configuration, when the introduction pressing parts 53B, 53B are pressed in a direction perpendicular to the insertion direction by the oil supply nozzle, the elastic supporting piece 56B generates a s...

no. 5 Embodiment

[0108] Figure 23 It is an exploded perspective view showing a fuel tank opening and closing device 110B according to the fifth embodiment. The feature of this embodiment is the structure of the nozzle detection mechanism 150B that detects the insertion of the fuel supply nozzle. That is, the nozzle detection member 151B of the nozzle detection mechanism 150B has: an introduction pressing portion 153B disposed on both sides of the fuel passage 111P; an elastic support piece 156B connected to one end of the introduction pressing portion 153B and extending upward; The arm 157B is connected to the upper part of the elastic supporting piece 156B. The connection and fixing arm 157B is a semi-arc-shaped belt-shaped member, and is fixed to the opening forming member. In addition, the conductive member 117B is arranged on the outer peripheral side of the connecting and fixing arm 157B. The conductive member 117B has: an annular base 117Ba; and a discharge protrusion 117Bb arranged ...

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PUM

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Abstract

A fuel tank opening-closing device includes a flap valve mechanism situated inside a tank opening forming member and having a flap valve mechanism; and an opening-closing activation mechanism adapted to selectively set the flap valve mechanism to a locked position or an unlocked position. The opening-closing activation mechanism includes a cover covering the peripheral edge portion of the opening-closing member and having a cover body produced by being split into arcuate shapes of prescribed width; a nozzle detection mechanism having introductory push parts that are adapted to receive force of motion in the insertion direction by a fueling nozzle; locking members which engage or disengage from the opening-closing member; and a locking mechanism having and adapted to move the locking members from the locked position to the unlocked position through interlocking operation with the introductory push parts.

Description

[0001] The applications that serve as the basis for the right of priority include: Application No.: Japanese Patent Application No. 2009-45315, date of application: February 27, 2009; Application No.: Japanese Patent Application No. 2009-83940, date of application: March 31, 2009; and No.: Japanese Patent Application No. 2009-83941, filing date: March 31, 2009. technical field [0002] The present invention relates to a fuel tank opening and closing device for supplying fuel to the fuel tank by opening a flapper valve with an insertion force of a fuel supply nozzle. Background technique [0003] Fuel supply nozzles used to supply fuel to vehicles generally have a nozzle diameter of 20 mm for gasoline and 25 mm for light oil in order to distinguish between gasoline and light oil. The technique described in US Pat. No. 6,968,874 is known as a fuel supply device that uses different nozzle diameters to accommodate different fuel types. That is, the fuel supply device has: a fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/04
CPCB60K2015/0483B60K15/04B60K2015/0429
Inventor 波贺野博之
Owner TOYODA GOSEI CO LTD
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