GAS SUPPLY DEVICE, DEVICE FOR CONTROLLING INSIDE AIR, AND REFRIGERATION DEVICE FOR CONTAINER

• US 20200132355A1
• Filed: 07/20/2018
• Published: 04/30/2020
• Est. Priority Date: 07/21/2017
• Status: Active Grant

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: TAGAWA, Hirotaka, MATSUI, Kazuyasu, IKEMIYA, Makoto
• Granted Patent: US 11,137,191 B2
• Time in Patent Office: Days
• CPC Class Codes: A23B 7/148 in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
• CPC Class Codes: B01D 2239/0618 Non-woven
• CPC Class Codes: B01D 2239/065 More than one layer present in the filtering material apparatus incorporating such gas filtering material B01D2275/10
• CPC Class Codes: B01D 2275/10 Multiple layers
• CPC Class Codes: B01D 2279/45 for electronic devices, e.g. computers, hard-discs, mobile phones
• CPC Class Codes: B01D 39/1692 Other shaped material, e.g. perforated or porous sheets
• CPC Class Codes: B01D 46/0005 Mounting of filtering elements within casings, housings or frames B01D46/2422 takes precedence
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• CPC Class Codes: B01D 46/521 using folded, pleated material
• CPC Class Codes: B32B 2307/724 Permeability to gases, adsorption
• CPC Class Codes: F25D 11/003 Transport containers
• CPC Class Codes: F25D 17/042 Air treating means within refrigerated spaces air conditioning in general F24F
• CPC Class Codes: F25D 17/06 by forced circulation
• CPC Class Codes: F25D 2317/041 by purification

Abstract

In a gas supply device that supplies gas to a target space through a filter unit, the filter unit is composed of a filter box and an air filter housed in the filter box, and the air filter is a filter having a filter substrate made of a membrane filter and a fibrous coating layer covering a surface of the filter substrate through which air is sucked.

Claims

1-6. -6. (canceled)

7. A container refrigeration apparatus, comprising:

a casing mounted on a container for use in marine transportation;

components of a refrigerant circuit attached to the casing; and

an inside air control system attached to the casing, wherein

the container refrigeration apparatus is configured to cool an internal space of the container, and supply a gas mixture to the internal space of the container using the inside air control system, and

the inside air control system includes;

a gas supply device; and

a gas mixture generator that generates a gas mixture having a higher nitrogen concentration and a lower oxygen concentration than air sucked through a filter unit of the gas supply device,

the gas supply device includes;

a gas passage that supplies gas to an indoor space;

a filter unit provided at an inlet of the gas passage; and

an air pump provided in the middle of the gas passage and configured to supply gas generated by the gas mixture generator to the indoor space,

the filter unit includes a filter box and an air filter housed in the filter box, and

the air filter includes a filter substrate made of a membrane filter having waterproofness and air permeability, and a fibrous coating layer covering a surface of the filter substrate through which air is sucked and absorbing water.

8. The container refrigeration apparatus of claim 7, wherein

the air filter is a pleated filter having a plurality of pleats.

9. The container refrigeration apparatus of claim 8, wherein

the air filter is arranged so that the pleats extend in a vertical direction.

10. The container refrigeration apparatus of claim 7, wherein

the air filter includes a stack of a plurality of filter substrates.

11. The container refrigeration apparatus of claim 8, wherein

the air filter includes a stack of a plurality of filter substrates.

12. The container refrigeration apparatus of claim 9, wherein

the air filter includes a stack of a plurality of filter substrates.