Compression apparatus

Patent metadata

Field	Value
Publication number	US-11978933-B2
Application number	US-202117412331-A
Country	US
Kind code	B2
Filing date	Aug 26, 2021
Priority date	Jan 8, 2020
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

A compression apparatus includes an electrolyte membrane, an anode on a principal surface of the electrolyte membrane, a cathode on another principal surface of the electrolyte membrane, an anode separator on the anode, a cathode separator on the cathode, and a voltage applicator. Upon the voltage applicator applying a voltage, protons are extracted from an anode fluid fed to the anode to move to the cathode through the electrolyte membrane and compressed hydrogen is produced. The anode separator has a fluid channel, a manifold hole, and a communicating path which are formed in an anode-side principal surface. The compression apparatus includes a face seal disposed on an outer periphery of a region of the anode-side principal surface of the anode separator which faces the anode. The face seal has a three-layer structure including a metal sheet and a pair of elastic sheets.

First claim

What is claimed is:

1. A compression apparatus comprising:
an electrolyte membrane;
an anode disposed on a principal surface of the electrolyte membrane;
a cathode disposed on another principal surface of the electrolyte membrane;
an anode separator disposed on the anode;
a cathode separator disposed on the cathode; and
a voltage applicator that applies a voltage between the anode and the cathode,
wherein, upon the voltage applicator applying the voltage, the compression apparatus causes protons extracted from an anode fluid fed to the anode to move to the cathode through the electrolyte membrane and produces compressed hydrogen,
wherein the anode separator has a fluid channel through which the anode fluid flows on the anode, a manifold hole through which the anode fluid is fed to the fluid channel, and a communicating path through which the manifold hole and the fluid channel are communicated with each other, the fluid channel, the manifold hole, and the communicating path being formed in an anode-side principal surface of the anode separator, the anode-side principal surface being directed toward the anode,
wherein the compression apparatus comprises a face seal disposed on an outer periphery of a region of the anode-side principal surface of the anode separator, the region facing the anode, the face seal being arranged to cover the communicating path, and
wherein the face seal has a three-layer structure including a metal sheet and a pair of elastic sheets disposed on respective principal surfaces of the metal sheet.

2. The compression apparatus according to claim 1 ,
wherein the anode separator and the cathode separator are merged with each other.

3. The compression apparatus according to claim 1 ,
wherein the metal sheet is composed of a stainless steel.

4. The compression apparatus according to claim 3 ,
wherein the stainless steel is SUS316 or SUS316L.

5. The compression apparatus according to claim 3 ,
wherein the stainless steel is 4401-316-00-I, 4436-316-00-I, 4404-316-03-I, 4432-316-03-I, or 4436-316-91-I.

6. The compression apparatus according to claim 3 ,
wherein the stainless steel is 1.4401, 1.4436, 1.4404, 1.4432, or 1.4435.

7. The compression apparatus according to claim 3 ,
wherein the stainless steel is S31600 or S31603.

8. The compression apparatus according to claim 3 ,
wherein the stainless steel is S31608 or S31603.

9. The compression apparatus according to claim 1 ,
wherein the metal sheet has a thickness of greater than or equal to 0.3 mm.

10. The compression apparatus according to claim 1 ,
wherein the elastic sheets are composed of a fluorine rubber.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Sakai Osamu
• Kakuwa Takashi

Classifications

• F16J15/122

  generally parallel to the surfaces · CPC title

• F16J15/0818

  Flat gaskets · CPC title

• F16J2015/0856

  with a non-metallic coating or strip · CPC title

• H01M8/0656 Primary

  by electrochemical means (H01M8/065 takes precedence) · CPC title

• C25B9/05 Primary

  Pressure cells · CPC title