Mouthpiece structure for pressure vessel

Patent metadata

Field	Value
Publication number	US-9248945-B2
Application number	US-201514592440-A
Country	US
Kind code	B2
Filing date	Jan 8, 2015
Priority date	Jan 10, 2014
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A mouthpiece structure for a pressure vessel includes a liner made of a synthetic resin, and constituting a vessel body and a cylindrical part communicating between an interior and an exterior of the vessel body, a cylindrical mouthpiece mounted closely to an inner periphery of the cylindrical part, a retainer having a covering portion which covers regions of outer surfaces of the cylindrical part and the mouthpiece respectively and a peripheral wall surrounding the cylindrical part, the cylindrical part and the mouthpiece having an interface between an inner periphery of the cylindrical part and an outer periphery of the mouthpiece, the interface having a distal end facing the regions, a first sealing member disposed between the mouthpiece and the covering portion, and a second sealing member disposed between the cylindrical part and the peripheral wall of the retainer.

First claim

What is claimed is:

1. A mouthpiece structure for a pressure vessel, comprising:
a liner made of a synthetic resin and constituting a vessel body and a cylindrical part communicating between an interior and an exterior of the vessel body;
a cylindrical mouthpiece mounted closely to an inner periphery of the cylindrical part;
a retainer having a covering portion which covers regions of outer surfaces of the cylindrical part and the cylindrical mouthpiece respectively and a peripheral wall surrounding the cylindrical part, the cylindrical part and the cylindrical mouthpiece having an interface between an inner periphery of the cylindrical part and an outer periphery of the cylindrical mouthpiece, the interface having a distal end facing the regions;
a first sealing member disposed between the cylindrical mouthpiece and the covering portion; and
a second sealing member disposed between the cylindrical part and the peripheral wall of the retainer,
wherein the cylindrical mouthpiece is formed with a male thread, the mouthpiece structure further comprising a nut which is threadingly engageable with the male thread thereby to press the covering portion against the cylindrical mouthpiece.

2. The structure according to claim 1 , wherein the second sealing member is housed in a seal groove formed by recessing only an inner periphery of the peripheral wall.

3. The structure according to claim 1 , wherein the covering portion abuts against the region of the outer surface of the cylindrical mouthpiece which the distal end of the interface faces.

4. The structure according to claim 1 , wherein the region of the outer surface of the cylindrical part which the distal end of the interface faces, is non-contact with the covering portion.

Assignees

• Toyota Motor Co Ltd

Inventors

• Aoe Ryuta
• Sekiguchi Osamu
• Manabe Katsuya
• Miyazaki Yoshinori
• Takami Masayoshi
• Taki Masayoshi
• Hatta Ken

Classifications

• B65D53/02 Primary

  Collars or rings · CPC title

• F16J12/00 Primary

  Pressure vessels in general (covers therefor F16J13/00; for particular applications, see the relevant subclasses, e.g. B01J, F17C, G21C) · CPC title

• B65D25/14

  Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183}) · CPC title

• F17C1/00

  Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge (pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 {; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00}) · CPC title

• B65D81/20

  under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas {(B65D81/28 takes precedence; containers with pressurising means for maintaining ball pressure A63B39/025)} · CPC title