Work vehicle with flap for cab pressure control
A cab for a work vehicle includes: walls enclosing a cab environment; a door coupled to one of the walls, one of the walls or the door comprising a vent opening; a heating, ventilation, and air conditioning (HVAC) system coupled to the cab environment and configured to regulate a temperature and a pressure of the cab environment; and a pressure control flap associated with the vent opening and comprising a pressure-relief opening and a magnetic portion that is configured to hold the flap closed when the pressure of the cab environment is below a threshold pressure and allow the pressure to open the flap when the pressure exceeds the threshold pressure.
1. A cab for a work vehicle, comprising:
a plurality of walls enclosing a cab environment;
a door coupled to one of the walls, one of the walls or the door comprising a vent opening;
a heating, ventilation, and air conditioning (HVAC) system coupled to the cab environment and configured to regulate a temperature and a pressure of the cab environment; and
a pressure control flap associated with the vent opening and comprising a pressure-relief opening and a magnetic portion that is configured to hold the flap closed when the pressure of the cab environment is below a threshold pressure and allow the pressure to open the flap when the pressure exceeds the threshold pressure.
2. The cab of claim 1 , wherein the pressure-relief opening is formed in a center of the flap.
3. The cab of claim 2 , wherein the pressure-relief opening is a circular opening.
4. The cab of claim 1 , wherein the magnetic portion comprises a magnetic strip extending along a first edge of the flap.
5. The cab of claim 4 , wherein at least a portion of the wall or the door comprising the vent opening comprises a ferrous metal and the magnetic strip is magnetically attracted to the ferrous metal.
6. The cab of claim 4 , wherein the flap is hingedly connected to the wall or the door comprising the vent opening at a second edge that is opposite the first edge.
7. The cab of claim 1 , wherein the flap is a flexible flap.
8. The cab of claim 7 , wherein the flap is hingedly connected to the wall or the door comprising the vent opening.
9. The cab of claim 1 , wherein the threshold pressure is between 50 Pa and 130 Pa.
10. A work vehicle, comprising:
a chassis;
a cab carried by the chassis, the cab comprising:
a plurality of walls enclosing a cab environment;
a door coupled to one of the walls, one of the walls or the door comprising a vent opening;
a heating, ventilation, and air conditioning (HVAC) system coupled to the cab environment and configured to regulate a temperature and a pressure of the cab environment; and
a pressure control flap associated with the vent opening and comprising a pressure-relief opening and a magnetic portion that is configured to hold the flap closed when the pressure of the cab environment is below a threshold pressure and allow the pressure to open the flap when the pressure exceeds the threshold pressure.
11. The work vehicle of claim 10 , wherein the pressure-relief opening is formed in a center of the flap.
12. The work vehicle of claim 11 , wherein the pressure-relief opening is a circular opening.
13. The work vehicle of claim 10 , wherein the magnetic portion comprises a magnetic strip extending along a first edge of the flap.
14. The work vehicle of claim 13 , wherein at least a portion of the wall or the door comprising the vent opening comprises a ferrous metal and the magnetic strip is magnetically attracted to the ferrous metal.
15. The work vehicle of claim 13 , wherein the flap is hingedly connected to the wall or the door comprising the vent opening at a second edge that is opposite the first edge.
16. The work vehicle of claim 10 , wherein the flap is a flexible flap.
17. The work vehicle of claim 16 , wherein the flap is hingedly connected to the wall or the door comprising the vent opening.
18. The work vehicle of claim 10 , wherein the threshold pressure is between 50 Pa and 130 Pa.