Manufacturing method for tank

Patent metadata

Field	Value
Publication number	US-10801668-B2
Application number	US-201916424614-A
Country	US
Kind code	B2
Filing date	May 29, 2019
Priority date	Aug 31, 2018
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

A manufacturing method for a tank is a method of manufacturing a tank by winding fibers impregnated with a resin in a plurality of layers on an outer circumference of a liner, and the manufacturing method includes: laminating a plurality of hoop layers by hoop-winding the fibers impregnated with the resin; and laminating a plurality of helical layers by helical-winding the fibers impregnated with the resin such that the helical layers wrap the hoop layers. When laminating the helical layers, a temperature of the fibers impregnated with the resin is adjusted at 40° C. or more and 60° C. or less.

First claim

What is claimed is:

1. A manufacturing method for a tank that manufactures the tank by winding fibers impregnated with a resin in a plurality of layers on an outer circumference of a liner, the manufacturing method comprising:
laminating a plurality of hoop layers by hoop-winding the fibers impregnated with the resin; and
laminating a plurality of helical layers by helical-winding the fibers impregnated with the resin such that the helical layers wrap the hoop layers, wherein
when laminating the helical layers, a temperature of the fibers impregnated with the resin is adjusted at 40° C. or more and 60° C. or less.

2. The manufacturing method according to claim 1 , wherein
when the tank is manufactured by using a manufacturing apparatus equipped with a resin fiber feeding roller feeding the fibers impregnated with the resin,
when laminating the helical layers, the temperature of the fibers impregnated with the resin is adjusted by frictional heat generated by controlling a rotation of the resin fiber feeding roller.

3. The manufacturing method according to claim 1 , wherein
when the tank is manufactured by using a manufacturing apparatus equipped with a heater,
when laminating the helical layers, the temperature of the fibers impregnated with the resin is adjusted by the heater.

4. The manufacturing method according to claim 1 , wherein when laminating the helical layers, the temperature of the fibers impregnated with the resin is adjusted at 40° C. or more and 50° C. or less.

5. The manufacturing method according to claim 2 , wherein
the controlling of the rotation of the resin fiber feeding roller includes:
rotating the resin fiber feeding roller in the same direction as a rotating direction of the liner;
rotating the resin fiber feeding roller in a direction reverse to the rotating direction of the liner; and
stopping the rotation of the resin fiber feeding roller.

Assignees

• Toyota Motor Co Ltd

Inventors

• Iida Yasuhiro

Classifications

• F17C2201/058

  portable (<30 l) · CPC title

• F17C2205/0305

  Bosses, e.g. boss collars · CPC title

• F17C2223/036

  Very high pressure (>80 bar) · CPC title

• F17C2203/067

  helically wound · CPC title

• F17C2201/056

  Small (<1 m3) · CPC title