Installation for heating and/or ventilating the passenger compartment of a vehicle employing selective extraction of air

A vehicle including an installation for heating and/or ventilating a passenger compartment of the vehicle, the passenger compartment defining an internal space and an external space, installation comprising

• means for producing flows of air;
• at least one air distribution channel connected to said means for producing flows;
• at least one air diffusion inlet connected to said at least one air distribution channel and providing air flow to the internal space, wherein said means for producing flows is operative to increase pressure in the internal space;
• a vehicle seat;
• a vehicle windscreen having a top and a bottom;
• a plurality of air extraction channels in flow communication with the external space;
• a plurality of extraction vents in communication with the internal space, each extraction vent connected to at least one of said plurality of air extraction channels whereby the internal space is placed in flow communication with the external space, said extraction vents operative to remove air from the passenger compartment as a result of a pressure difference between the internal space and the external space, each of said plurality of extraction vents located in the passenger compartment and defining a passenger comfort zone, wherein at least one of said plurality of extraction vents is integrated into the vehicle seat and at least one of said plurality of extraction vents is proximate the top of the windscreen;
• and
• apportioning means for selectively controlling distribution of extracted airflow between different extraction vents and for increasing distribution and circulation of air in at least one of the passenger comfort zones.

An installation for heating and/or ventilating the passenger compartment of a vehicle, the passenger compartment defining an interior and an exterior, the vehicle having a windscreen, said installation comprising;

• a vehicle seat in the interior of the passenger compartment;
• an air flow generator;
• an air distribution system connected to said air flow generator, said air distribution system providing an air flow that has been generated to the interior of the passenger compartment, wherein said air flow generator is operative to increase pressure in the interior;
• and
• an air extraction system connecting the interior and the exterior of the passenger compartment, said air extraction system including a plurality of air extraction vents located in the passenger compartment, at least one of said plurality of air extraction vents positioned in the vehicle seat at the top of the vehicle seat and at least one of said plurality of air extraction vents disposed proximate the windscreen, and at least one air extraction channel in communication with the exterior and connected to at least one of said plurality of air extraction vents, said plurality of air extraction vents defining one or more passenger comfort zones proximate the vehicle seat or the windscreen, said air extraction system operative to remove air from the passenger comfort zone in the passenger compartment due to a pressure difference between the interior and the exterior of the passenger compartment.

An heating/ventilating system for a vehicle, the vehicle having a windscreen and also having a passenger compartment defining an internal space and an external space, The heating/ventilating system comprising:

• a pulser, the pulser operative to produce an airflow;
• a distribution channel connected to the pulser;
• a diffusion inlet connected to the distribution channel the diffusion inlet providing the airflow to the internal space, wherein the pulser is operative to increase pressure in the internal space;
• a seat disposed in the passenger compartment;
• a plurality of extraction vents, the diffusion inlet and the extraction vent cooperatively establishing a passenger comfort zone, at least one of the plurality of extraction vents disposed in the seat and at least one of the plurality of extraction vents disposed near the top of the windscreen;
• an extraction channel, connected to the extraction vent, the extraction vent and extraction channel placing the internal space in communication with the external space and operative to remove air from the passenger comfort zone as a result of a pressure difference between the internal space and the external space;
• and
• apportioning means for selectively controlling the distribution of extracted airflow via the plurality of extraction vents and for increasing the distribution and circulation of air in the passenger comfort zone.