Heating, ventilation and/or air conditioning installation designed to regenerate a filter, and method of implementation

Patent metadata

Field	Value
Publication number	US-9649912-B2
Application number	US-201113638189-A
Country	US
Kind code	B2
Filing date	Mar 25, 2011
Priority date	Mar 31, 2010
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

The subject of the invention is a motor vehicle heating, ventilation and/or air conditioning installation ( 1 ). Said installation ( 1 ) comprises a unit ( 3 ) housing at least one blower ( 15 ) interposed between an upstream volume ( 16 ) and a downstream volume ( 17 ) which volumes are delimited by the unit ( 3 ). The upstream volume ( 16 ) houses a mixing chamber ( 18 ) provided with a mixing flap ( 20 ). The upstream volume ( 16 ) houses a filter ( 23 ). Said installation ( 1 ) is fitted with means ( 27, 20, 24, 25 ) for regenerating the filter ( 23 ). The means ( 27, 20, 24, 25, 14 ) for regenerating the filter ( 23 ) comprise an interstitial space ( 27 ) linking the upstream volume ( 16 ) and the downstream volume ( 17 ) which is created between the unit ( 3 ) and the blower ( 15 ).

First claim

The invention claimed is:

1. A heating, ventilation and/or air conditioning installation ( 1 ) for a motor vehicle, said installation ( 1 ) comprising a casing ( 3 ) housing at least one blower ( 15 ) interposed between an upstream volume ( 16 ) and a downstream volume ( 17 ) which are delimited by the casing ( 3 ), the upstream volume ( 16 ) housing a mixing chamber ( 18 ) provided with a mixing flap ( 20 ), the casing ( 3 ) housing a filter ( 23 ), said installation ( 1 ) being equipped with regeneration means ( 27 , 20 , 24 , 25 ) for regenerating the filter ( 23 ), wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises an interstitial space ( 27 ) connecting the upstream volume ( 16 ) and the downstream volume ( 17 ), the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises the mixing flap ( 20 ) upstream of the at least one blower which constitutes a means of closing off an outlet ( 32 ) of the interstitial space ( 27 ) into the upstream volume ( 16 ), the interstitial space ( 27 ) being included within the casing ( 3 ) and formed between a wall ( 28 ) delimiting the casing ( 3 ) and the at least one blower ( 15 ) and extending longitudinally along the at least one blower ( 15 ) and lying entirely between the upstream volume ( 16 ) and the downstream volume ( 17 ) and the filter ( 23 ) being located upstream of the mixing chamber ( 18 ), the interstitial space ( 22 ) being an empty volume containing no blower and constituting a path by-passing the at least one blower ( 15 ).

2. The installation ( 1 ) as claimed in 1 , wherein the interstitial space ( 27 ) is adjacent to the at least one blower ( 15 ) and to the mixing chamber ( 18 ).

3. The installation ( 1 ) as claimed in claim 1 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprise a resistor ( 24 ) with which the filter ( 23 ) is equipped, the resistor ( 24 ) being associated with a source ( 25 ) of electrical power.

4. The installation ( 1 ) as claimed in claim 1 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprise at least one air distribution flap ( 14 ) with which an air delivery vent ( 11 , 12 , 13 ) is equipped.

5. The installation ( 1 ) as claimed in claim 1 , wherein the filter ( 23 ) is interposed between an external-air intake vent ( 4 ) and the mixing chamber ( 18 ).

6. A method of regenerating the filter ( 23 ) with which an installation ( 1 ) according to claim 1 is equipped, wherein the method comprises the following operations:
placing the mixing flap ( 20 ) in a regeneration position so as to leave the outlet ( 32 ) of the interstitial space ( 27 ), an external-air intake vent ( 4 ) and a recycling-air intake vent ( 8 ) uncovered,
placing the air distribution flap ( 14 ) in the closed position,
switching on the source ( 25 ) of electrical power of the resistor ( 24 ), and
switching on the at least one blower ( 15 ).

7. The installation ( 1 ) as claimed in claim 2 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises the mixing flap ( 20 ) which constitutes a means of closing off an outlet ( 32 ) of the interstitial space ( 27 ) into the upstream volume ( 16 ).

8. The installation ( 1 ) as claimed in claim 2 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises a resistor ( 24 ) with which the filter ( 23 ) is equipped, the resistor ( 24 ) being associated with a source ( 25 ) of electrical power.

9. The installation ( 1 ) as claimed in claim 1 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises a resistor ( 24 ) with which the filter ( 23 ) is equipped, the resistor ( 24 ) being associated with a source ( 25 ) of electrical power.

10. The installation ( 1 ) as claimed in claim 7 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises a resistor ( 24 ) with which the filter ( 23 ) is equipped, the resistor ( 24 ) being associated with a source ( 25 ) of electrical power.

11. The installation ( 1 ) as claimed in claim 1 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises at least one air distribution flap ( 14 ) with which an air delivery vent ( 11 , 12 , 13 ) is equipped.

12. The installation ( 1 ) as claimed in claim 3 , wherein the regeneration means ( 27 , 20 , 24 , 25 , 14 ) for regenerating the filter ( 23 ) comprises at least one air distribution flap ( 14 ) with which an air delivery vent ( 11 , 12 , 13 ) is equipped.

Assignees

• Loup Didier
• Feuillard Vincent
• Martinell Amanda
• Valeo Systemes Thermiques

Inventors

• Loup Didier
• Feuillard Vincent
• Martinell Amanda

Classifications

• B60H3/0633 Primary

  with provisions for regenerating or cleaning the filter element · CPC title

• B60H2003/0691

  Adsorption filters, e.g. activated carbon · CPC title