SU1643201A1 - Device for cleaning air in vehicle cabin - Google Patents

Abstract

The invention relates to the technique of ventilation and conditioning of the cabins of vehicles, mainly agricultural, road, construction and others, which have to work in conditions of external dustiness. The purpose of the invention is to increase the comfort conditions in the cabin by turning on the fans for sequential or parallel operation. When the flap 16 (22) is turned to the closed hole 15 (19) position, the synchronous flap 21 opens the hole 18, the fans 12 and 17 are turned on in series. When the flap 16 (22) is turned to the open hole 15 (19) position, the fans are turned on in parallel. 2 Il.

Description

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with to the technology of cabs predominantly road cabins, the external zapy comes

Increase the room by switching on the work.

device for transporting the bin in fan mode 10

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ditch; in fig. 2 - the same, in the parallel operation mode of the fans.

The device comprises an air duct 1 with an expanding part 2 and 3 at the outlet and the inlet and the central constricted part 4. At the inlet of the air duct a cover panel 5 is mounted. 7. The filter panel 8 is fixed on the cover-panel 5, as well as an inertial dust separator 9 equipped with a dust suction connection pipe 10 connected to the source of discharge. On the cover panel 6, a heat exchanger 11 is mounted for cooling or heating the air. On the cover panel 7, a 12 n air distributor 13 is mounted. The heat exchanger 11 is fixed on the cover panel 6 so that air passes only through the heat exchanger 11.

In the upper part of the partition 14, installed between the central and output parts of the duct 1, an opening 15 is made with a flap 16 on the axis. In the central part 4 of the duct 1, an additional fan 17 is installed in front of the partition 14 and an opening 18 is made in the partition 14 and a recirculation opening 19 for communication with the cabin 20 in front of the outlet part 2. Simultaneously, synchronous dampers 21-22 are mounted on the same axis to block the openings 18 and 19,

An additional recirculation opening 23 with a flap is provided in the central part 4 of the air duct 1 in front of the additional fan 17.

The device works as follows.

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Claims (1)

In order to achieve sufficient air pressure in the cabin, the flaps 16 and 22 are turned so that the first closes the additional opening 15, and the second - the opening 19 (Fig. 1). At the same time, the synchronous damper 21 leaves the opening 18 open. Air through the dust separator 9, the filter 8 and the air duct 1 enters the input of the additional fan 17 n out of the open opening 18, passes the heat exchanger 11 and is fed to the entrance of the fan 12, which increases the air pressure flow and through the air distributor 13 supplies it to the cabin 20. In this case, the fans 12 and 17 operate in sequential switching mode. If it is necessary to supply a larger amount of air into the cabin, but with a smaller head, the flap 16 rotates and opens the opening 15, and the flap 22 opens the opening 19 into the cabin 20, and the damper 21 closes the opening 18 (Fig. 2). At the same time, air through the air duct 1 simultaneously enters the inlet of the fans 12 and 17 and exits through the air distributor 13 and the opening 19 into the cabin 20. The fans operate in parallel mode, with an increase in productivity. For partial or complete re-, j-circulation, a damper 23 opens, allowing air to be recirculated. Invention Formula 40 A device for treating air in a vehicle cabin, comprising an air duct arranged in the upper part of the cab, made with a central narrowed part and extending at the ends of the inlet and outlet parts communicated with the atmosphere respectively, a partition with an opening and a flap installed between the central and output parts 50 of the duct, while in the central part of the duct there is a recirculation opening in front of the exit part with a flap for communication with the cabin, as well as a dust separator and with filter, mounted in the inlet part of the air duct, fan, air distributor and heat exchanger, mounted in the outlet part, characterized in that 0 51643201 in order to increase the comfort conditions in the cabin by turning on the fans for sequential or parallel operation, it is equipped with an additional fan mounted in the central part of the duct in front of the partition with an opening and damper, / X In this case, an additional hole with a flap is made in the said partition in the upper part, and an additional recirculation hole with a flap is installed in the central part of the duct before the additional fan.