Engineering vehicle and air conditioning system thereof

An engineering vehicle, comprising:

• a cab, comprising a seat, configured to switch between facing forward so that a driver faces forward and facing backward so that the driver faces backward;
• and
• an air conditioning system for adjusting the temperature of the cab;
• wherein the air conditioning system comprises:
• an air conditioner body, comprising a shell, wherein the shell comprises a first air outlet and a second air outlet;
• a first air supply pipeline, a first end of the first air supply pipeline being connected to the first air outlet;
• one or more first air supply ports, arranged at an inner front end of the cab and connected to a second end of the first air supply pipeline;
• a second air supply pipeline, a first end of the second air supply pipeline being connected to the second air outlet;
• one or more second air supply ports, arranged at an inner rear end of the cab and connected to a second end of the second air supply pipeline;
• and
• a flow distribution device, comprising a flow dividing portion arranged in the shell, wherein the flow dividing portion is movably arranged relative to at least one of the first air outlet or the second air outlet so as to change an outlet air volume ratio of the air conditioner body, and the outlet air volume ratio is a ratio of an air volume flowing out of the shell from the first air outlet to an air volume flowing out of the shell from the second air outlet,
• wherein the first air supply ports and the second air supply ports are configured such that:
• when the seat is facing forward, the air supplied from the first air supply ports and the second air supply ports blows to the front side and back side of the driver's body respectively, and when the seat is facing backwards, the air supplied from the first air supply ports and the second air supply ports blows towards the back side and front side of the driver's body respectively;
• and
• wherein the flow dividing portion comprises:
• a first wind shielding surface, arranged between the first air outlet and the second air outlet;
• a second wind shielding surface, arranged between the first wind shielding surface and the second air outlet;
• and
• a wind guide surface, protruding towards a wind coming side, the wind guide surface being in smooth connection with the first wind shielding surface and the second wind shielding surface respectively.