Methods and apparatus are provided for active vehicle cabin occupant protection system. The method includes detecting a vehicle cabin temperature using a cabin thermal sensor, engaging a vehicle fan and opening a vehicle outside air ventilation duct in response to the vehicle cabin temperature exceeding a first threshold temperature, and starting a vehicle engine and engaging a vehicle air conditioning system in response to the vehicle cabin temperature exceeding a second threshold temperature wherein the second threshold temperature is greater than the first threshold temperature.

A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly has at least one vent unit disposed on the roof and configured to enter the roof, a driving unit driving the vent unit, and at least one rack unit applying the driving force of the driving unit to the vent unit. The vent unit enters the roof due to operation of the driving unit.

A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly includes at least one vent unit disposed on the roof and configured to be popped up to the interior of the vehicle, a driving unit driving the vent unit, and at least one rack unit applying driving force of the driving unit to the vent unit. The vent unit is popped up or tilted by the driving unit.

A roof system for a vehicle having a roof opening in a roof part thereof comprises a transparent panel in the roof opening, and a ventilation system for moving air into and/or out of the vehicle interior. The ventilation system includes an air guiding channel guiding air between the vehicle interior and the environment through at least one ventilation opening. The air guiding channel is fitted centrally below the transparent panel and extends in longitudinal direction of the vehicle, substantially completely along the panel and communicates with the interior at least along a substantial length of the panel through holes.

Embodiments of the present invention provide techniques for ventilating an enclosure such as the cargo space of a vehicle. In an example implementation, a ventilator is affixed to an external wall (e.g., the roof) of the cargo space. The ventilator includes a ram inlet that flows into a venturi, along one or more openings in a boundary of the cargo space, and exits at an outlet. When the vehicle is in motion, external airflow enters the ram inlet, gets compressed in the venturi, and travels over the top of the boundary, generating a high shear that pulls airflow from the cargo space, into the diffuser, and out the outlet. The ventilator may include an electric fan that generates suction from the cargo space when the vehicle is stationary, and a moveable flap at the inlet that directs the suction towards the cargo space when the vehicle is stationary.

A vent shade assembly for a recreational vehicle ceiling vent comprises a vent shade outer frame having an inner flange, a vent shade inner frame having an inner flange, and a pair of side walls disposed between the inner flange of each of the outer and inner frame to form a slot. A movable pleated shade element disposed within the slot is operable between a closed position and a plurality of positions there between. A first and a second shade string is disposed at least partially alongside and parallel to a first and second of the pair of side walls, respectively, and proximate a first and a second side edge of the movable pleated shade element, respectively. A portion of the inner flange of the vent shade outer frame supports the first and second side edge of the movable pleated shade element.

According to the invention, there is provided a positive pressure vent (10) for a vehicle (12). The vent (10) includes an inlet chamber (14) having an air intake port (16) facing into an air stream generated by motion of the vehicle (12) so as to collect air and form a positive pressure inside the inlet chamber (14). There is further provided a filter (18) adapted to filter air from the inlet chamber (14) of particulate matter. A filtered air path (25) is further provided for allowing filtered air from the filter (18) to travel to the interior of the vehicle (12) under the urging of the positive pressure from the inlet chamber (14).

Rooflight or window 1 for vehicles, particularly for a recreational vehicle, comprising a window frame 2, the window frame 2 comprises a ventilation path allowing air exchange between the inside and the outside of the vehicle, wherein the window frame 2 comprises ventilation slots 4, 5 at least at a surface 8 of the window frame 2 facing the inside of the vehicle, wherein the rooflight or window 1 further comprises a cover 3 being connected to the window frame 2 and covering the surface 8 of the window frame 2 facing the inside of the vehicle, wherein along the outer edge of the window frame 2 a circumferential gap 9 is present between the window frame 2 and the cover 3 functioning as a canal for ventilation air.

A method of operating at least one of a fan and a vent in a ceiling of a recreational vehicle using an extension arm, the extension arm including an elongated shaft with an operable end, comprising grabbing the extension arm with one's hand; engaging one of a turn switch, a turn crank, and a knob of one of the fan and vent in the ceiling of the recreational vehicle with the operable end; and at least one of operating the fan and vent by rotating one of the turn switch, the turn crank, and the knob with the operable end by rotating the extension arm with one's hand.

An operable vent for mounting on a substantially planar structure and configured for adjusting an opening in the planar structure to control air flow through the opening.