US 12,403,745 B2
Air treatment system for recreational vehicles
Giuliano Ungarelli, Zola Predosa (IT); Fabrizio Ungarelli, Molinella (IT); and Danila Facchinello, Zola Predosa (IT)
Assigned to Automotive Ac Design & Consulting LLC, Wilmington, DE (US)
Filed by AUTOMOTIVE AC DESIGN & CONSULTING LLC, Wilmington, DE (US)
Filed on Apr. 27, 2023, as Appl. No. 18/139,972.
Application 18/139,972 is a continuation in part of application No. PCT/IB2020/061463, filed on Dec. 3, 2020.
Application PCT/IB2020/061463 is a continuation of application No. 17/084,224, filed on Oct. 29, 2020, abandoned.
Prior Publication US 2023/0294478 A1, Sep. 21, 2023
Int. Cl. B60H 1/00 (2006.01); B60H 1/22 (2006.01); B60H 1/24 (2006.01); B60H 1/32 (2006.01); B60H 3/00 (2006.01); B60H 3/02 (2006.01)
CPC B60H 1/00364 (2013.01) [B60H 1/00007 (2013.01); B60H 1/00478 (2013.01); B60H 1/00514 (2013.01); B60H 1/2212 (2013.01); B60H 1/24 (2013.01); B60H 1/32 (2013.01); B60H 3/00 (2013.01); B60H 3/024 (2013.01); B60H 2001/006 (2013.01); B60H 2001/2287 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A recreational vehicle comprising:
living quarters designed for accommodation of people;
an air treatment system comprising:
single metal sheet body provided with internal separation in at least three main chambers; wherein a first chamber is provided for conditioning a treatment air deemed to the living quarters, a second chamber is provided for receiving a return air from the living quarters before treatment and a third chamber is provided for treating a ventilation air;
a heating air plant comprising:
a fuel or natural-gas burner assembly for producing hot gases by means of a combustion process;
a sealed heat-exchanger which receives the hot gases from said burner assembly and is placed within said first chamber to exchange the heat of the hot gas through its surfaces with the treatment air for the living quarters;
a cooling air plant comprising:
a refrigerator compressor for the compression of a refrigerant fluid;
a condenser heat exchanger that receives the compressed refrigerant fluid from said refrigerator compressor through a first piping;
a first blower arranged for sucking said ventilation air from a first intake of said single metal sheet body, for blowing it onto said condenser heat exchanger and for expelling it to the outside of the single metal sheet body of the air treatment system through a first outlet of said single metal sheet body; said condenser heat exchanger and said first blower being placed into said third chamber;
an evaporator heat exchanger that receives the refrigerant fluid from said condenser heat exchanger through an orifice tube and absorbs the heat from said return air; said evaporator heat exchanger being placed within said first chamber;
a second blower placed within the second chamber and arranged for sucking the return air from the living quarters through a second air intake of said single metal sheet body, for blowing it into said first chamber on said evaporator heat exchanger and on said sealed heat-exchanger to produce said treatment air and for pushing said treatment air from said first chamber to the living quarters through at least one flange;
an electrical power supply comprising a power line socket, a selector for connecting and transforming an available voltage into a voltage required by the air treatment system to work and a power board arranged for supplying and controlling at least the refrigerator compressor, the first blower, the second blower and the heating air plant;
said power board being arrangeable to make the heating air plant and the cooling air plant to work simultaneously, so that the evaporator heat exchanger dries the return air and the sealed heat-exchanger heats the return air received from the evaporator heat exchanger to produce said treatment air dried and hot;
said single metal sheet body being placed under the living quarters;
said single metal sheet body comprising a fourth chamber operating as a resonator to reduce outside noise of the first blower;
said air treatment system comprising punched shields present inside the fourth chamber to help in dying sound waves to reduce noise.