Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuel break valve

A technology for fuel stop valves and fuel tanks, which is applied in the direction of liquid fuel feeders, charging systems, engine components, etc., and can solve problems such as uneven bending, deformation, and inability to maintain high sealing performance

Active Publication Date: 2009-06-17
TOYODA GOSEI CO LTD
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This swelling of the fuel, especially when the lid is fused to the fuel tank and is restricted, causes the lid to bulge upward and cause uneven bending deformation.
Therefore, the central axis of the sealing portion is displaced or deformed due to fuel swelling, and there is a problem that high sealing performance cannot be maintained.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel break valve
  • Fuel break valve
  • Fuel break valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to further understand the structure and function of the present invention described above, preferred embodiments of the present invention will be described below.

[0033] (1) Schematic structure of the fuel stop valve 10

[0034] figure 1 is a side view showing the fuel stop valve 10, figure 2 is a cross-sectional view showing the fuel shutoff valve 10 . The fuel tank FT, the surface of which is formed of a composite resin material containing high-density polyethylene, has a mounting hole FTb formed in its upper wall FTa. On this fuel tank upper wall FTa, a fuel stop valve 10 is mounted with its lower portion inserted into the mounting hole FTb. The fuel stop valve 10 mainly includes a housing 20, a float 50, and a spring 70, and restricts the fuel from flowing out to the outside (canister) when the fuel in the fuel tank FT rises to a predetermined level. Next, the structure and function of each part of the fuel shutoff valve 10 will be described.

[003...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fuel stop valve (10) capable of reducing the parts number and keeping high tightness. The fuel stop valve (10) comprises a shell (20) and a floater (50). The shell (20) comprises a main body (30) with a cylindrical side wall part (32); and a cover (40) on the top of the side wall part (32). The cover (40) comprises a cover main body (41) capable of covering one part of the upper opening of the side wall part (32) and with a connection passage (44a); a deposition part (42a) formed on the periphery of the cover main body and capable of hot depositing on the top of a fuel box FT; and a sealing part (44b) arranged to facing the connection passage (44a) at the top of the floater. The cover main body comprises a flat part (41a) covering on the periphery of the shell main body with an open on the superior part; and a heightening part (41b) with a sealing part above the flat part.

Description

technical field [0001] The present invention relates to a fuel cut-off valve which is installed on the upper part of a fuel tank and communicates / disconnects the fuel tank with the outside by opening and closing a connection passage connecting the inside of the fuel tank with the outside. Background technique [0002] At present, as such a fuel shutoff valve, a valve described in Patent Document 1 is known. figure 1 Technology. The existing fuel cut-off valve is installed on the upper wall of the fuel tank FT, which has: a housing, which forms a valve chamber, and a connecting passage connecting the valve chamber and the outside; a float, which is accommodated in the valve chamber; and a spring, which The float is preloaded upwards, and the float moves up and down corresponding to the fuel level in the valve chamber to open and close the connection passage, so as to ensure the ventilation between the inside and outside of the fuel tank and prevent fuel from flowing out to t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F02M37/00B60K15/03
Inventor 鬼头宏明西博
Owner TOYODA GOSEI CO LTD