Rail vehicle comprising an engine compartment and at least one driver's cab, and method for generating overpressure in the engine compartment

A method for generating an overpressure in an engine compartment and for controlling a climate of at least one driver's cab of a rail vehicle,

• the method comprising:
• introduction of fresh air into the at least one driver's cab via a first air guidance system;
• and
• transmission of at least one part of the fresh air which has been introduced into the at least one driver's cab from the at least one driver's cab into the engine compartment by drawing the at least one part of the fresh air from the at least one driver's cab into a second air guidance system and expelling the at least one part of the fresh air into the engine compartment via an air duct extending from the second air guidance system into the engine compartment;
• wherein all of the air introduced into the second air guidance system comes directly from the driver's cab;
• wherein the second air guidance system defines an opening into the at least one driver's cab for drawing air from the at least one driver's cab back to the first air guidance system;
• wherein the transmission of the at least one part of the fresh air which has been introduced into the at least one driver's cab from the at least one driver's cab into the engine compartment increases the air pressure in the engine compartment to a pressure greater than an air pressure of the environment outside the engine compartment;
• and
• wherein the overpressure generated in the engine compartment reduces an amount of impurities and/or moisture entering the engine compartment.

A rail vehicle comprising:

• an engine compartment;
• at least one driver's cab;
• an air conditioning system comprising:
• a first air guidance system configured to introduce fresh air into the at least one driver's cab;
• a second air guidance system configured to generate an overpressure in the engine compartment by drawing at least part of the fresh air from the at least one driver's cab into the second air guidance system and to expel the at least part of the fresh air into the engine compartment via an air duct extending from the second air guidance system into the engine compartment, such that an air pressure in the engine compartment is greater than an air pressure of the environment outside the engine compartment;
• wherein the second air guidance system defines an opening into the at least one driver's cab for drawing air from the at least one driver's cab back to the first air guidance system;
• wherein all of the air drawn into the second air guidance system comes directly from the at least one driver's cab;
• and
• wherein the overpressure generated in the engine compartment reduces an amount of impurities and/or moisture entering the engine compartment.