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RU-2861470-C1 - VEHICLE CLIMATE CONTROL UNIT

RU2861470C1RU 2861470 C1RU2861470 C1RU 2861470C1RU-2861470-C1

Abstract

FIELD: vehicles. SUBSTANCE: invention relates to systems for maintaining microclimate in the passenger compartment/cab of a vehicle. The climate control unit contains a flow heat exchanger, a filter, a recirculation valve and an air blower, configured to pass outside or recirculated air through the heat exchanger, as well as a manifold and a reforming device. The manifold contains an inlet mouth connected to the heat exchanger, and outlet nozzles, at least one of which is directed towards the head and hands. The reforming device provides intake of atmospheric air, its separation into nitrogen-enriched and oxygen-enriched components, and supply of oxygen-enriched air either to the heat exchanger of the climate control unit, or into the cavity of the nozzles whose mouths are directed towards the head or head and hands of the driver, or through an injector located axially to the mouths of said nozzles. EFFECT: heating or cooling of the driver's hands, in case of operating the vehicle during periods of the year that are uncomfortable for humans, as well as supplying oxygen-enriched air to the passenger compartment/cab of the vehicle, in case of operating the vehicle in a polluted or oxygen-depleted atmosphere. 5 cl, 5 dwg

Inventors

  • Petrov Roman Leonidovich
  • Kirillov Viktor Aleksandrovich
  • DOBLER STANISLAV VLADIMIROVICH

Dates

Publication Date
20260505
Application Date
20251204

Claims (5)

  1. 1. A vehicle climate control system comprising a flow-through heat exchanger, a filter, a recirculation valve and an air blower configured to pass outside or recirculated air through the heat exchanger, where the heat exchanger is configured to contain a heater and a cooler for the air entering the heat exchanger located in its cavity, and the filter is configured to be installed with the capability of cleaning both outside and recirculated air, characterized in that the climate control system is configured to be provided with a manifold containing an inlet mouth connected to the heat exchanger and outlet nozzles, at least one of which is directed towards the driver's head and hands, the climate control system is configured to be equipped with a reforming device comprising an air intake window or branch pipe formed with the capability of drawing in atmospheric air from the environment surrounding the vehicle, a branch pipe or window for discharging nitrogen-enriched air into the atmosphere, and a forced-air supply pipe oxygen-enriched air.
  2. 2. The air conditioning system according to paragraph 1, characterized in that it is designed with the possibility of mixing oxygen-enriched air supplied from the reforming device through its forced feed pipe with the air coming from the heat exchanger.
  3. 3. The climate control system according to paragraph 1, characterized in that it is designed with the possibility of mixing oxygen-enriched air coming from the reforming device through its forced supply pipe, with the air coming into the nozzle directed towards the head or head and hands of the driver.
  4. 4. The climate control system according to paragraph 1, characterized in that it is designed with the possibility of supplying oxygen-enriched air through an annular injector formed with the possibility of using the Coanda effect, installed on the instrument panel with an axial distance from the outlet of the nozzle directed towards the head, preferably, or the head and hands of the driver.
  5. 5. The climate control system according to paragraph 1, characterized in that it is designed with the possibility of supplying oxygen-enriched air through an injector formed with the possibility of using the Coanda effect, installed in the cavity of the nozzle directed towards the head, preferably, or the head and hands of the driver.

Description

The invention relates to installations for maintaining a microclimate in the passenger compartment/cabin of a vehicle. From SanPiN 1.2.3685-21 “Hygienic standards and requirements for ensuring the safety and (or) harmlessness of environmental factors for humans” the following are known: 1. Permissible values of microclimate parameters in workplaces in premises, see Table 5.2: 1.1 - In the cold season - from 20 to 25 °C for work category Ia*, and from 19 to 27 °C for work category Ib**, with a relative humidity of 15-75% and an air velocity of 0.1 to 0.2 m/sec. 1.2 - In the warm season - from 21 to 28 °C for work category Ia, and from 20 to 28 °C for work category Ib, with a relative humidity of 15-55% (in accordance with the clarification of paragraph 30) and an air velocity of 0.1 to 0.3 m/sec. * - job categories Ia – “...a number of professions in the field of management” (in the context of the invention, the applicant classifies driving a vehicle in a calm traffic situation as belonging to this category). ** - category of work Ib - “work performed while sitting... accompanied by physical exertion” (in the context of the invention, the applicant classifies driving a vehicle in off-road conditions and/or in high traffic conditions / in the presence of different types of vehicles in the flow / in high traffic density as this category). 2. Microclimate parameters in the driver’s cabin of locomotives, multiple unit and special self-propelled rolling stock, see Table 5.61: 2.1 During periods of the year with an outside air temperature of up to plus 20 °C - 20-24 °C at a relative humidity of 30-70% and an air velocity of 0.25 m/sec (at an outside air temperature below 10 °C), 0.4 m/sec (at an outside air temperature from 10 to 20 °C). 2.2 During periods of the year with outside air temperatures from plus 20 to 40 °C – 22+0.2(t n -20) ±2 °C with a relative humidity of no more than 70% and an air speed of 0.4 m/sec. The article "Using Modern Climate Systems Correctly" by Nikita Gudkov (users Beepoff), published on May 6, 2020, on the website https://www.drive2.ru/b/667316972593100363/, viewed on July 22, 2025, provides the following information: "The right microclimate in a car's cabin isn't just a matter of comfort. If the temperature in the cockpit rises from 25 to 35°C, the driver's reaction time increases by approximately 20%. For example, SEAT believes that an overheated driver is as dangerous as a drunk driver with a blood alcohol level of 0.5 ppm." - “It is considered that the most comfortable temperature in the cabin is between 18 and 22 °C. ...closer to the floor it should be five to eight degrees warmer than in the head area... when heating, the main flow of hot air should be directed downwards, and the cold air in the summer - into the central deflectors” (Latin deflecto - to deflect). The article “Factors Affecting the Physical Condition of Drivers” by E.Z. Mullakaev and A.Kh. Urazaev, published in the journal “Alternative Fuel Transport” No. 5 (29), October 2012, provides the following information: "According to global statistics, the primary cause of 90% of road accidents is the functional state of drivers. Moreover, 70% of these accidents occur due to driver fatigue... The main causes of these accidents are due to air pollution in the cabin from exhaust gases, noise, work stress, vibration, and an unfavorable microclimate—heat or cold." - “If the temperature is not high enough, the driver and passengers freeze, and if the temperature is high, they tire faster, especially in winter when wearing warm clothes. The most favorable conditions are: a temperature of 18-20 °C, humidity of 30-70%. According to most authors, the air temperature in car cabins should be within the following range: in winter 15-25 °C, in summer 18-27 °C. At temperatures below 10 °C, the body begins to overcool, at temperatures above 25 °C, physical fatigue occurs, attention decreases and reaction time increases, with a further increase in temperature to 35 °C, mental activity deteriorates, reaction time slows, errors in driving appear, attention decreases by about 10%. Low air temperature also negatively affects muscle function, speed and accuracy of movements, which is why the driver makes more mistakes. Research has also shown that at an air temperature in the cabin of 13 °C, more road accidents occur than at the optimal temperature.” A patent for utility model RU 61199, IPC B60N 1/00, published on 27.02.2007, discloses a passenger car (PC) climate control system comprising a flow-through (shell-and-tube) heat exchanger, a radiator-heater (heater radiator) and a radiator-cooler (air conditioning evaporator) located within the cavity of the heat exchanger, as well as a fan and a recirculation valve configured to draw outside or recirculated air through the heat exchanger. The climate control system is also provided with a filter installed to clean both outside and recirculated air entering the heat exchanger in various operatin