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

Automotive filler cap

A fuel filler cap and fuel filler technology, which is applied to vehicle components, transportation and packaging, machinery and equipment, etc., can solve the problems of unrecorded automobile fuel filler caps, etc., and achieve the effect of excellent adhesion and low adhesion

Inactive Publication Date: 2014-11-26
DAIKIN IND LTD
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Document 5, there is no description of the fuel filler cap for automobiles.

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
  • Automotive filler cap
  • Automotive filler cap
  • Automotive filler cap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0270] Molding cross-linking process

[0271] Put the cross-linkable composition 1 into the fuel filler port gasket mold, pressurize to 10MPa, and vulcanize at 170°C for 10 minutes to obtain figure 2 A cross-linked molded product of the cross-section of the gasket (gasket) 24 (outer diameter Φ52.6 mm, inner diameter Φ40 mm, cross-sectional height 6.7 mm).

[0272] heat treatment process

[0273] The obtained cross-linked molded article was placed in a heating furnace maintained at 230° C. for 24 hours, and heat-treated to obtain a fuel filler port gasket. The crosslinking (vulcanization) property was measured at a measurement temperature of 170° C. using a Curelastometer Type II manufactured by JSR Corporation.

[0274] In addition, the number of protrusions, the cross-sectional area of ​​the bottom, the height, the area ratio of the region having the protrusions, and the adhesion of the fuel filler port gasket were measured using the obtained fuel filler port gasket. The ...

Embodiment 1-2

[0276] Except having used the crosslinkable composition 2 instead of the crosslinkable composition 1, the fuel filler gasket was obtained by the same method as Example 1-1, and various measurements were performed.

Embodiment 2-1

[0278] Molding cross-linking process

[0279] Put the full mixture into the mold of the oil filling port gasket, pressurize to 10MPa, and vulcanize at 170°C for 10 minutes to obtain image 3 A cross-linked molded product (outer diameter Φ40mm, inner diameter Φ34mm, height 5mm) of the cross-section of the gasket (gasket) 34.

[0280] heat treatment process

[0281] The obtained cross-linked molded product was placed in a heating furnace maintained at 230° C. for 24 hours, and heat-treated to obtain an oil filler port gasket. The crosslinking (vulcanization) property was measured at a measurement temperature of 170° C. using a Curelastometer Type II manufactured by JSR Corporation.

[0282] In addition, using the obtained fuel filler gasket, the number of protrusions, bottom cross-sectional area, height, area ratio of the region having the protrusions, and adhesion of the fuel filler gasket were measured. The results are shown in Table 1.

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

PropertyMeasurementUnit
heightaaaaaaaaaa
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The purpose of the present invention is to provide an automotive filler cap which is highly reduced in sticking. This automotive filler cap is to be fitted to the oil filler port of a motor vehicle, and is characterized by being equipped with a gasket that is to be pressed against the oil filler port to seal the oil filler port, wherein the gasket is constituted of a composition comprising a fluororubber and a fluororesin, some of the fluororesin having precipitated in the surface of the gasket and the fluororesin being a copolymer comprising units based on tetrafluoroethylene and units based on hexafluoropropylene.

Description

technical field [0001] The present invention relates to fuel tank caps for automobiles, fuel filler caps for automobiles and other fuel filler caps for automobiles. Background technique [0002] An automobile is provided with a fuel filler for supplying fuel or oil, and the fuel filler is blocked by a fuel filler cap. [0003] For example, a fuel tank for an automobile has an upper end of a filler pipe that rises upward from the tank main body, and has a filler port through which fuel is supplied from a fuel gun, and the filler port is closed so that it can be freely opened and closed by a fuel filler cap. In order to prevent fuel vapor from diffusing into the atmosphere from the gap between the fuel filler cap of the fuel filler pipe and the fuel filler cap, a rubber seal member is provided on the fuel filler cap. [0004] As materials for sealing members used in fuel filler caps for automobiles, for example, Patent Document 1 describes vinylidene fluoride-hexafluoropropyl...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/05C08L27/12F16J13/12F16J15/10
CPCC08L27/12B60K15/05B60K2015/0451F16J15/102B60K15/0406F16J15/106B60K2015/0438C08L27/16C08L27/18
Inventor 柳口富彦中野泰宏增田晴久北原隆宏
Owner DAIKIN IND LTD