Patent ID: 11904659
Assignee: DOMETIC SWEDEN AB
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
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.