Mobile leisure accommodation vehicle and a method for ventilating a mobile leisure accommodation vehicle

Patent metadata

Field	Value
Publication number	US-11904659-B2
Application number	US-201816492440-A
Country	US
Kind code	B2
Filing date	Mar 8, 2018
Priority date	Mar 9, 2017
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A mobile accommodation vehicle having a first free flow opening enabling free air flow between the inside and the outside of the vehicle and a second free flow opening also enabling free air flow between the inside and the outside of the vehicle. The first free flow opening is arranged higher than the second free flow opening in the vehicle. The first free flow opening or the second free flow opening is provided with heat recovery ventilation means which is arranged to enable free air flow through the heat recovery ventilation means, when the heat recovery ventilation means is not in operation.

First claim

The invention claimed is:

1. A mobile accommodation vehicle comprising:
a first free flow opening enabling free air flow between an inside and an outside of said mobile accommodation vehicle,
a second free flow opening also enabling free air flow between the inside and the outside of said mobile accommodation vehicle, said second free flow opening located in or at a floor of said mobile accommodation vehicle and allowing air flow if air flow passage through a heat recovery ventilator is blocked or at least reduced, said second free flow opening spaced vertically apart from said first free flow opening, such that said first free flow opening is arranged higher than said second free flow opening in said mobile accommodation vehicle,
a third free flow opening, said third free flow opening spaced vertically apart from said second free flow opening, such that said third free flow opening and said first free flow opening are arranged higher than said second free flow opening and spaced vertically apart from said second free flow opening,
wherein said first free flow opening and said third free flow opening are provided with said heat recovery ventilator, and wherein said heat recovery ventilator provides a first fan for a first air flow in a first direction and a second fan for a second air flow in a second direction, and additionally allows said free air flow there through into and out of said mobile accommodation vehicle when said heat recovery ventilator is not operating, and wherein said heat recovery ventilator comprises a heat exchanger which exchanges heat between an inbound and outbound air flow moving therein,
wherein said mobile accommodation vehicle comprises a controller arranged to control said heat recovery ventilator, and
wherein said mobile accommodation vehicle comprises an air flow measuring sensor for measuring the inbound air flow and the outbound air flow through at least one of said first free flow opening, said second free flow opening, or said third free flow opening and/or a pressure differential measuring sensor for measuring a pressure differential between said inside and said outside of said mobile accommodation vehicle, said air flow measuring sensor providing measurements to said controller;
wherein said controller controls said air flow through said heat recovery ventilator based upon said measurements of said air flow measuring sensor and/or said pressure differential measuring sensor.

2. The mobile accommodation vehicle according to claim 1 , wherein said controller is arranged to generate a balanced air flow through said heat recovery ventilator enabling that when said heat recovery ventilator is in operation, the inbound air flow through said heat recovery ventilator will be equal to the outbound air flow through said heat recovery ventilator.

3. The mobile accommodation vehicle according to claim 1 , wherein said controller is arranged to control said heat recovery ventilator to reduce the free air flow through at least one of said first free flow opening or said third free flow opening.

4. The mobile accommodation vehicle according to claim 1 , wherein said heat recovery ventilator includes a first heat recovery ventilator arranged at said first free flow opening and a second heat recovery ventilator arranged at said third free flow opening.

5. The mobile accommodation vehicle according to claim 1 , wherein said first free flow opening is arranged in a roof surface of said mobile accommodation vehicle and/or wherein said second free flow opening is arranged in a floor surface of said mobile accommodation vehicle.

6. The mobile accommodation vehicle according to claim 1 , wherein said heat recovery ventilator comprises an emergency air flow valve arranged to enable said free air flow through an emergency free flow opening if said heat recovery ventilator is malfunctioning or out of operation.

7. The mobile accommodation vehicle according to claim 1 , wherein said controller is arranged to control operation of said heat recovery ventilator so that pressure inside said mobile accommodation vehicle is equal to pressure outside said mobile accommodation vehicle.

8. A method for ventilating a mobile accommodation vehicle, comprising:
a first free flow opening capable of enabling free air flow between an inside and an outside of said mobile accommodation vehicle, a second free flow opening also capable of enabling free air flow between the inside and the outside of said mobile accommodation vehicle, said second free flow opening located in or at a floor of said mobile accommodation vehicle and spaced vertically apart from said first free flow opening, such that said first free flow opening is arranged higher than said second free flow opening in said mobile accommodation vehicle,
wherein said first free flow opening or said second free flow opening comprises a heat recovery ventilator, said heat recovery ventilator having a first fan providing an inbound air flow and a second fan providing an outbound air flow, and wherein said heat recovery ventilator comprises a heat exchanger which exchanges heat between the inbound air flow and the outbound air flow moving therethrough, wherein said heat recovery ventilator allows said free air flow there through into and out of said mobile accommodation vehicle including when said heat recovery ventilator is not operating,
the second free flow opening or a third free flow opening which allows air flow if passage through said heat recovery ventilator is blocked or at least reduced when said heat recovery ventilator is not in operation, said third free flow opening spaced vertically apart from said first free flow opening or said second free flow opening;
wherein said heat recovery ventilator is controlled to reduce the free air flow through at least one of said first free flow opening, said second free flow opening, or said third free flow opening, and
wherein said method comprises the steps of:
directly or indirectly obtaining measurements regarding the air flow in and/or out of said first free flow opening, said second free flow opening, said third free flow opening and/or said heat recovery ventilator, and
controlling said outbound air flow out through said heat recovery ventilator and/or said inbound air flow in through said heat recovery ventilator based on said measurements.

9. The method according to claim 8 , wherein said heat recovery ventilator is controlled so that said inbound air flow through said heat recovery ventilator is equal to said outbound air flow through said heat recovery ventilator.

10. The method according to claim 8 , wherein said heat recovery ventilator is controlled so that pressure inside said mobile accommodation vehicle is equal to pressure outside said mobile accommodation vehicle.

11. The method according to claim 8 , wherein said method further comprises monitoring quality of air inside said mobile accommodation vehicle and controlling the operation of said heat recovery ventilator in response to said monitoring.

12. The method for ventilating a mobile accommodation vehicle according to claim 8 , wherein said heat recovery ventilator is arranged at both said first free flow opening and said third free flow opening.

Assignees

• Dometic Sweden Ab

Inventors

• Jensen John Børsting

Classifications

• B60H1/00 Primary

  Heating, cooling or ventilating devices · CPC title

• B60H1/262 Primary

  Openings in or on the vehicle roof · CPC title

• B60H1/00021

  Air flow details of HVAC devices · CPC title

• B60H1/00828

  Ventilators, e.g. speed control (B60H1/00864 takes precedence) · CPC title

• B60H2001/00178

  comprising an air passage from the HVAC box to the exterior of the cabin · CPC title