Method and apparatus for dynamic gas mixture production

Patent metadata

Field	Value
Publication number	US-10058824-B2
Application number	US-201214344373-A
Country	US
Kind code	B2
Filing date	Aug 17, 2012
Priority date	Sep 16, 2011
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

The present invention relates to a method for producing and delivering a gas mixture having a selected composition of a first gas and at least one second gas, comprising the following steps: (a) providing a main gas flow comprising the first gas in a main conduit, (b) separating the main gas flow into a first plurality of secondary gas flows, (c) guiding each secondary gas flow through a secondary conduit, (d) adding at least one second gas to at least one of the first plurality of secondary gas flows in the respective secondary conduit through a delivering conduit, said delivering conduit protruding into the secondary conduit, and (e) combining the first plurality of secondary gas flows to the gas mixture. With the technical teaching of the present invention a dynamic gas bottle filling is possible wherein the second gas components may have a concentration form some ppb to percent.

First claim

The invention claimed is:

1. An apparatus ( 5 ) for producing and delivering a gas mixture having a selected composition of a first gas and at least one second gas, comprising a main conduit ( 1 ) with a first section ( 6 ) and a second section ( 7 ), wherein the first section ( 6 ) and the second section ( 7 ) of the main conduit ( 1 ) are connected by a first plurality of secondary conduits ( 2 ), wherein a delivering conduit ( 3 ) ends within at least one of the first plurality of secondary conduits ( 2 ) and protrudes into the at least one of the first plurality of secondary conduits ( 2 ), the apparatus further comprising a third section ( 8 ) of the main conduit ( 1 ), which is connected to the second section ( 7 ) of the main conduit ( 1 ) by a second plurality of secondary conduits ( 2 ), wherein a delivering conduit ( 3 ) ends within at least one of the second plurality of secondary conduits ( 2 ), wherein a second inner diameter of the delivering conduit ( 3 ) ending in at least one of the second plurality of secondary conduits ( 2 ) is larger than a first inner diameter of the delivering conduit ( 3 ) ending in at least one of the first plurality of secondary conduits ( 2 ).

2. The apparatus ( 5 ) according to claim 1 , wherein the plurality of secondary conduits ( 2 ) is formed by holes ( 12 ) in a connecting piece ( 13 ), which is connected to the first ( 6 ) and second section ( 7 ) of the main conduit ( 1 ).

3. The apparatus ( 5 ) according to claim 1 , wherein a valve ( 10 ) operated by a piezo actuator ( 20 ) is connected to the delivering conduit.

4. The apparatus ( 5 ) according to claim 3 , wherein the piezo actuator ( 20 ) is connected to a valve needle ( 21 ) by a connecting rod ( 34 ).

5. The apparatus ( 5 ) according to claim 1 , wherein a valve ( 10 ) operated by a step motor ( 14 ) is connected to the delivering conduit ( 3 ).

6. The apparatus ( 5 ) according to claim 1 , wherein a pressure regulator ( 15 ) is connected to the inlet of a valve ( 10 ) connected to the delivering conduit ( 3 ).

7. An apparatus ( 5 ) for producing and delivering a gas mixture having a selected composition of a first gas and at least one second gas, comprising a main conduit ( 1 ) with a first section ( 6 ) and a second section ( 7 ), wherein the first section ( 6 ) and the second section ( 7 ) of the main conduit ( 1 ) are connected by a first plurality of secondary conduits ( 2 ), wherein a delivering conduit ( 3 ) ends within at least one of the first plurality of secondary conduits ( 2 ) and protrudes into the at least one of the first plurality of secondary conduits ( 2 ), wherein the delivering conduit ( 3 ) is formed between a valve ( 10 ) and the end ( 11 ) within the secondary conduit ( 2 ) and has a volume of less than 1 cm 3 .

8. The apparatus ( 5 ) according to claim 7 , wherein the plurality of secondary conduits ( 2 ) is formed by holes ( 12 ) in a connecting piece ( 13 ), which is connected to the first ( 6 ) and second section ( 7 ) of the main conduit ( 1 ).

9. The apparatus ( 5 ) according to claim 7 , wherein a valve ( 10 ) operated by a piezo actuator ( 20 ) is connected to the delivering conduit.

10. The apparatus ( 5 ) according to claim 9 , wherein the piezo actuator ( 20 ) is connected to a valve needle ( 21 ) by a connecting rod ( 34 ).

11. The apparatus ( 5 ) according to claim 7 , wherein a valve ( 10 ) operated by a step motor ( 14 ) is connected to the delivering conduit ( 3 ).

12. The apparatus ( 5 ) according to claim 7 , wherein a pressure regulator ( 15 ) is connected to the inlet of a valve ( 10 ) connected to the delivering conduit ( 3 ).

Assignees

• Ponzgraz Johann
• Kihumbu David
• Jacksier Tracey
• Muller Denis
• Air Liquide

Inventors

• Ponzgraz Johann
• Kihumbu David
• Jacksier Tracey
• Muller Denis

Classifications

• B01F5/04

  Operations & Transport · mapped topic

• B01F15/0201

  Operations & Transport · mapped topic

• B01F5/0456

  Operations & Transport · mapped topic

• B01F3/026 Primary

  Operations & Transport · mapped topic

• B01F3/02

  Operations & Transport · mapped topic