INTERCITY, TOURIST OR SIGHTSEEING BUS Russian patent published in 2021 - IPC B62D47/02 B62D31/02 B60H1/28 B62D35/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering, it can be used in intercity, tourist and sightseeing buses. When the surface of the interface of the windshield with the roof is a section of a sphere, paraboloid or cylinder, and the air intake of the interior ventilation system is made on this surface, the bus has a front spoiler located on top of the air intake, so that the spoiler covers the air intake from above and in front. The spoiler has an external and internal surface, made in the form of a section of a sphere, a paraboloid or a cylinder. The spoiler has a front lower surface made in a curve or on a plane inclined upwards or parallel to the plane of the bottom of the bus, or on an oval surface inclined upwards. Heat exchangers for cooling and heating the intake air are located at the top of the front part of the body, behind the air intake. The upper air ducts have sections separated by longitudinal partitions, each section supplies air to one group of upper nozzles for blowing passengers. The fans are located in the front part of the air ducts and turn on automatically only at low speed, with the air intake flap open. The projections of the front racks on the longitudinal plane are vertical or tilted backward, at an acute angle to the plane of the bottom of the bus, lying in the range from 90º to 70º, and represent a straight line or a curve with a variable angle of inclination, lying in the range from 90º to 70º. The front racks are inclined to the center of the bus at the angle of inclination of the side windows of the double-glazed windows; the projections of the front racks on the transverse plane are straight or curved. The windshield has in a cross-section by the plane parallel to the plane of the bottom of the bus, such a shape that provides a bypass of a larger proportion of oncoming air on the sides of the bus, and a smaller proportion - up, under the spoiler, to the air intake, providing air supply to the air intake due to natural pressure, when separating drops of moisture, dust and dirt from the air, when changing the direction of its movement.

EFFECT: reducing the aerodynamic drag of the bus is achieved, when driving at maximum speed, while ensuring air exchange in the cabin due to the natural pressure.

2 cl, 1 dwg