Abstract: A dual airflow control system for an environment having a first air zone and a second air zone. The system includes a first input device operable to generate a first input signal indicative of a desired airflow to the first zone and a second input device operable to generate a second input signal indicative of a desired airflow to the second zone. First and second flow regulators are configured to regulate airflow to the first and second zones, respectively, such that the first and second regulators selectively provide the airflow to each of the first and second zones based on the first and second input signals. A single actuator is associated with the first and second flow regulators. The actuator is operable to simultaneously actuate the first and second flow regulators based on an input from the first and second input devices to allow the desired airflows to the first and the second zones.

Abstract: An upper opening portion (74, 75) and lower opening portion (76, 77) are arranged in a door body (13b, 14b) located below a side window (13a, 14a), and an air conditioning unit (15, 16) is arranged inside the door body (13b, 14b), and a rotary position of a scroll casing (62, 63) of a blower (56, 57) is selected so that air can flow from the lower opening portion (76, 77) to the upper opening portion (74, 75) at the time of air-cooling and air can flow from the upper opening portion (74, 75) to the lower opening portion (76, 77) at the time of heating.

Abstract: A vehicle HVAC control system including front and rear HVAC control systems for controlling a front HVAC system and a rear HVAC system, and a method for controlling the front and rear HVAC systems. A front set point temperature is used by the front HVAC control system to control operation of the front HVAC system. The front set point temperature is communicated to the rear HVAC control system. The rear HVAC control system derives a rear set point temperature, which is based upon the front set point temperature and a temperature adjustment value, to control operation of the rear HVAC system. The temperature adjustment value is one of a plurality of predetermined temperature adjustment values that may be selected by a rear seat passenger to adjust the rear set point temperature relative to the front set point temperature and thereby permit the rear set passengers to control the temperature of air delivered to the rear seat.

Abstract: A heating and air-conditioning system for a motor vehicle has a conditioning housing that includes a connecting section which is provided with at least one air outlet opening. Using connecting structure on the connecting section, the air outlet opening may be connected to either an attachable rear vehicle compartment temperature-control unit or closed tightly, in a leak-proof manner, by a removable covering part.

Abstract: An HVAC assembly including an HVAC case disposed in a passenger compartment of the vehicle includes a heater core having an upstream side and a downstream side. The heater core accepts air from the upstream side and exhausts air to the downstream side. The exhausted air defines a temperature gradient along a plane of the heater core. An air diverting member is positioned on the downstream side proximate the heater core. The air diverting member includes a first portion aligned for accepting air from a first region of the temperature gradient and a second portion for delivering the accepted air toward a second region of the temperature gradient. The first region has a higher air temperature than the second region.

Abstract: In a vehicle air conditioner, a foot door is rotatably supported for opening and closing a foot opening and an air port communicating with defrost and face openings. The foot door has a guide plate. The guide plate functions as a heated air guide portion for directing heated air heated by a heating device to merge with cooled air that bypasses the heating device when the foot door is at a defrost/face mode position. The guide plate functions as a cooled air guide portion for directing the cooled air to merge with the heated air when the foot door is at a foot mode position. Accordingly, the heated air and the cooled air are sufficiently mixed with each other. Because the guide plate is moved for switching the defrost/face mode position and the foot mode position, the flow of air is not blocked by the guide plate.

Abstract: An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second air passage extending from an outside air suction port is disposed at a side of the first air passage to detect a temperature of air blown out from the evaporator disposed in the first air passage and the second air passage. An operation of the compressor for supplying the refrigerant to the evaporator is intermitted by comparing the temperature detected by the temperature sensor and the set temperature set in advance, and the set temperature is changed to be higher according to an increase in the temperature of outside air. In this way, it is possible to prevent the frosting of the evaporator in winter season, when the inside air is introduced into the first air passage and the outside air is introduced into the second air passage.

Abstract: A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool the front area of the interior, and a second climate control device designed to heat or cool the rear area of the interior. A first evaporator is connectable to a cooling circuit assigned to the first climate control device and a second evaporator is connectable to a second cooling circuit assigned to the second climate control device. The second evaporator is located in a latent storage in order to charge the latent storage with cold and the second climate control device contains a first heat exchanger designed to transfer the cold removed via the heat transfer medium circuit or the second cooling agent circuit from the latent storage for cooling of the rear area of the interior by an air flow.

Abstract: The present invention relates to an air conditioner for a vehicle including a front seat air conditioning unit and a rear seat air conditioning unit.

Abstract: A system and method of supplying conditioned air to an aircraft environmental control system during ground support operations that uses at least one flow control door to control the flow of cooling air through a heat exchanger. The heat exchanger removes heat from a flow of compressed air supplied to the system. The temperature of the conditioned compressed air is controlled by selectively positioning the flow control door, which regulates cooling air flow through the heat exchanger.

Abstract: An air conditioning unit and an air blowing unit are connected via an intermediate duct. The air blowing unit is provided on the left side of the air conditioning unit in the forward direction of a car. The air conditioning unit includes an air mix damper and a discharge direction switching damper for switching the discharge direction of conditioned air, each driven by a corresponding actuator via a link mechanism associated therewith. The link mechanism and the actuator are provided on a wall part of the air conditioning unit. From the perspective of the forward direction of a car, the link mechanism and actuator are mounted on a left wall part of the casing of the air conditioning unit. On the other hand, the air blowing unit is provided with an actuator for driving an indoor air/outside air switching damper, and the actuator is mounted to a side of a casing of the air blowing unit facing the air conditioning unit. Thus, the resulting air conditioner is reduced in size to reduce its installation space.

Abstract: A blower unit of an air conditioning unit including a scroll casing including a first engaging portion, a fan casing including a first engaging portion, and a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing. The precision of the position of the scroll casing with respect to the fan casing, the precision of the temperature of air discharged into the compartment, and/or the volume of the blower unit may be improved.

Abstract: In a vehicle air conditioner, a heater core is disposed in an air conditioning case to form front and rear cool air bypass passage through which cool air bypasses the heater core, and front and rear air mixing doors are disposed to independently adjust temperature of air blown toward a front seat side and temperature of air blown toward a rear seat side in a passenger compartment. A switching door is disposed to partition front and rear passage portions of the heater core from each other at a partition position, and to shut the rear passage portion at a rear shutting position. The switching door and the rear air mixing door are connected to a common operation mechanism to be operatively linked with each other.

Abstract: A system for aiding an engine in a vehicle includes an air duct operably disposed in the vehicle having a fresh air inlet for receiving fresh air, first outlet for exhausting air outside the vehicle, and second outlet for exhausting air inside a passenger compartment, a cool air conditioning device operably disposed in the duct to cool air as it passes thereby when in an “on mode”, a heater core operably disposed in the duct to continuously provide heat air as it passes thereby and remove heat from the engine. A first diverter is operably disposed in the duct for continuously diverting at least some of the heated air toward the first outlet when the cool air conditioning device is in an “on mode” and a second diverter is operably disposed in the duct for continuously diverting at least one fresh air or cool air toward one of the outlets.

Abstract: An air conditioner for an occupant compartment of a vehicle having a forward vehicle space and a rearward vehicle space with right and left seat zones includes an air conditioning box, in which an evaporator and a heat exchanger are arranged, as well as a cold air space situated between the evaporator and the heat exchanger. A warm air space is arranged behind the heat exchanger and air mixing spaces are constructed for supplying the forward vehicle space and the rearward vehicle space with conditioned air. To provide a mutually independent temperature adjustment in the forward vehicle space and the rearward vehicle space, a separate air mixing space is assigned to each seat zone. The four air mixing spaces are connected with the warm and cold air spaces by one warm and one cold air flap respectively.

Abstract: In an automotive air conditioner, there is provided an air guide arrangement for achieving an effective mixing between cooled air from an evaporator and warmed air from a heater under a bi-level mode. The air guide arrangement is placed in the vicinity of an outlet opening of a warmed air passage extending from the heater. The air guide arrangement forces a warmed air from the outlet opening of the warmed air passage to effectively mix with a cooled air which flows in a direction from the evaporator toward a ventilation air outlet opening.

Abstract: A dual evaporator air conditioning system and method for use therewith to cool air in front and rear portions of a cabin of a vehicle. The dual evaporator air conditioning system includes primary and auxiliary HVAC units to cool the air in the front and rear portions of the cabin, respectively. The dual evaporator air conditioning system also includes a control system having cooling and non-cooling modes for each of the HVAC units. The control system automatically activates a heating element near the auxiliary evaporator in response to the auxiliary HVAC unit being in the non-cooling mode while the primary HVAC unit is in the cooling mode. The heating element heats the refrigerant in the auxiliary evaporator to prevent accumulation of liquid refrigerant and lubricating oil in the auxiliary evaporator when the auxiliary HVAC unit is in the non-cooling mode while the primary HVAC unit is in the cooling mode.

Abstract: The invention relates to a heating or air-conditioning system for a motor vehicle, by which individual zones of the vehicle interior can be supplied with separately temperature-controlled air. An improved heating or air-conditioning system, which requires just a small amount of installation space, feeds differently temperature-controlled air to a plurality of air-conditioning zones. Despite the small amount of installation space, optimum mixing of cold air and warm air takes place in the heating or air-conditioning system, with the result that the air emerging from air-outlet openings in a respective air-conditioning zone have a constant temperature over the outlet cross section.

Abstract: An air conditioning control system for controlling the air conditioning system of a vehicle. The air conditioning control system is capable of determining the occupancy status of various locations in the vehicle interior. The air conditioning control system alters the flow rate of conditioned air to various portions of the vehicle interior based at least partially upon the occupancy of those areas of the vehicle interior. The air conditioning control system delivers increased amounts of conditioned air to the occupied portions of the vehicle interior when the conditioned air is of a comfortable temperature. The air conditioning control system delivers decreased amounts of conditioned air to the occupied portions of the vehicle interior when the conditioned air is most likely to be of an uncomfortable temperature.

Abstract: A mode switching control device of a vehicle air-conditioning apparatus capable of selecting vent mode delivery, whereby air is delivered to an upper part of the inside of a passenger compartment; foot mode delivery, whereby air is delivered to a lower part of the passenger compartment; and bi-level mode delivery, whereby the vent mode delivery and the foot mode delivery are implemented together. Even when on the basis of a target outlet temperature foot mode delivery has been selected, when the occupant insolation level is above a predetermined level the control device switches to the bi-level mode to provide the occupant with a comfortable air-conditioning feeling even when the vehicle is running.

Abstract: The present invention has been made to solve the foregoing problems and it is an object of the present invention to provide a two-layer flow air conditioning system in which a partition wall is installed on a path between an evaporator and a heater core to divide internal air and external air, and a first temperature adjusting door and a second temperature adjusting door each having a fan shape are installed at both sides of the partition wall in such a manner as to be opened at their sides to control the flow direction of the internal air and the external air which are supplied to both sides of the partition wall so as to prevent any mixture between the internal air and the external air, thereby enhancing heating and cooling effects without degrading a defrosting performance.

Abstract: A vehicle air conditioning system is capable of learning preferences for a plurality of passengers, altering control characteristics of air conditioning means based on the results of learning, and automatically controlling the system. The system is capable of adjusting a temperature separately and independently for the left and right sides of a passenger compartment, and stores a temperature setting map of preferences of respective passengers for the Dr side and Pa side. Temperature set points are used for calculating blowing temperatures and determining opening degrees of air mix dampers. If a set point temperature is changed by a manual setting, the temperature-setting map is altered and restored by learning such change, and thus the temperature-setting map can be updated to reflect preferences of each passenger for each of the Dr side and Pa side.

Abstract: A vehicle air-conditioning system of a dual air-conditioner type exhibiting a hot gas heater function, which is designed to efficiently recover not only dormant refrigerant at the heater side, but also dormant refrigerant at the rear seat evaporator, which system sets the refrigeration cycle to a cooling mode and engages in a refrigerant recovery operation when starting up the heating mode by a hot gas heater cycle, then switches the refrigeration cycle to the heating mode, sets the front seat air-conditioning unit to the outside air mode at the time of the heating mode to blow outside air to the front seat evaporator by the front seat blower, then, when judging that the inside air temperature is high due to the refrigerant temperature of the rear seat evaporator at the time of the heating mode, operates the rear side blower to blow inside air to the rear seat evaporator.

Abstract: A vehicle air conditioner has a front air conditioning unit for front seats of a vehicle and a rear air conditioning unit for rear seats of the vehicle. The front and rear air conditioning units are controlled by an air conditioning ECU. The ECU uses a non-linear model, such as a neural network, to determine a target blowout temperature, a blower voltage, and blowout port modes of the front air conditioning unit. The ECU uses a linear model to determine a target blowout temperature, a blower voltage, and blowout port modes of the rear air conditioning unit.

Abstract: A heating and/or air conditioning system for an interior of a vehicle has a central heating and/or cooling device and a decentralized air-conveying device which includes a plurality of air-conveying units arranged locally in the vehicle interior. In order to permit good regulation of the heating and/or air conditioning system and efficient air conditioning, respective air-conveying units of the decentralized air-conveying device are arranged in a plurality of subspaces of the vehicle interior for circulating air in the respective subspaces.

Abstract: A device to control an installation for heating, ventilating and/or ai-conditioning a vehicle passenger compartment responds to a set-point set by a passenger and chosen air-heating parameter values. A control module drives actuators to modify the operation of the installation. The device includes a module calculating a comfort temperature for a passenger in the passenger compartment using the stored values of the chosen parameters and by taking into account the set-point. The control module alters the operation of the installation as a function of the comfort temperature which corresponds to the air-heating configuration desired in the passenger compartment.

Abstract: In a vehicle air conditioner, an evaporator is disposed at an upper side of a blower approximately horizontally so that air blown by the blower passes through the evaporator from below upwardly. The evaporator is slightly tilted from a horizontal surface by a predetermined angle, and the blower is disposed in such a manner that air is mainly blown by the blower toward the evaporator in a direction substantially parallel to a tangential line at a scroll finish portion of the scroll casing. Accordingly, condensed water on a bottom heat-exchanging surface of the evaporator can be pushed downwardly by component force of the flow of air mainly blown from the blower.

Abstract: A vehicle seat air-conditioning system is used with a main air-conditioning unit which operates in one of a plurality of air blow modes. The main air-conditioning unit has an air-conditioned air outlet-port for supplying air-conditioned air irrespective of the air mode. The vehicle seat air-conditioning system includes an air-conditioned air duct connected to the air-conditioned air outlet-port, a seat-air duct connected to the air-conditioned air duct to supply the air-conditioned air to the inside of a seat and an air blower unit for blowing the air-conditioned air.

Abstract: A multiple zone electronic control system and method are provided to control a heating, ventilation and air conditioning (HVAC) system for a vehicle. The control system includes a plurality of sensors to provide inputs relating to multiple zones of an occupant compartment of the vehicle and a plurality of buttons to provide manual inputs relating to the multiple zones. The control system also includes a plurality of mechanisms to control temperature and flow of air from the HVAC system into the multiple zones. The control system further includes a controller electrically connected to the sensors and the buttons to receive the inputs therefrom and electrically connected to the mechanisms to control the temperature and flow of air into each of the multiple zones.

Abstract: In a vehicle air conditioning system, a cold accumulator is disposed between a downstream air side of a cooling heat exchanger and an upstream air side of a heating heat exchanger to be cooled by cold air having passed through the cooling heat exchanger. Further, the cold accumulator is disposed at the upstream air side of an air mixing door.

Abstract: In a vehicle air conditioner, a link mechanism, for connecting one of plural driving devices and one of plural air mixing doors to each other is connected to a hot water valve, and is constructed to be operated to first and second maximum cooling positions. At the first maximum cooling position, the one door connected to the link mechanism is operated to a door maximum cooling position, and the valve is opened. At the second position, the door connected to the link mechanism is operated to the door maximum cooling position, and the valve is closed. Therefore, the valve can be suitably opened and closed in accordance with operation positions of the plural air mixing doors without using a dedicated driving mechanism for the valve.

Abstract: An air conditioner for a vehicle is provided. An internal air passage in a case of the air conditioner includes a first passage which guides a portion of the air from a blower unit to flow through an auxiliary cooling portion of the evaporator, a second passage, which guides the remaining portion of the air from the blower unit to bypass the auxiliary cooling portion of the evaporator, an air mixing portion in which the air passed through the first passage and the air passed through the second passage flow together, and a third passage, which is connected to the air mixing portion and guides the air passed through the air mixing portion to flow through a main cooling portion of the evaporator. In the air conditioner a portion of the air that flows in is cooled twice while passing through the auxiliary cooling portion and the main cooling portion of the evaporator, so that a higher cooling efficiency requirement, especially regarding the early stage cooling performance, is satisfied.

Abstract: An air conditioner for automotive vehicles is disclosed. The flow rates of air supplied to an evaporator (4) and a heater (5) are adjusted by rotationally displacing a scroll casing (2b) and thus changing an air flow from a blower (2) to a predetermined direction. The air-mix door can thus be eliminated to allow a smaller size of an air-conditioner casing (3) (air-conditioning unit (1)). Also, the ratio between cool air flow rate and hot air flow rate is adjusted by rotationally displacing the scroll casing (2b) with a spur gear (2c) and, therefore, the size and the production cost of the air conditioner can be reduced as compared with a conventional system in which an air-mix door is swung by a link mechanism.

Abstract: A method of controlling a transport temperature control unit having cooling and heating cycles for cooling and heating a conditioned space within a transport. The method includes programming a first pre-programmed control mode into the unit, configuring the unit such that a second control mode is programmable into the unit by an end user, querying the end user to select the first pre-programmed control mode or to program the second control mode into the unit, and programming the second control mode into the unit by the end user when the second control mode is desired by the end user. A transport temperature control unit for performing the same and including a first pre-programmed control mode being programmable into the unit and a second control mode being programmable into the unit by an end user.

Abstract: A heating or air-conditioning system for vehicles, having a heat exchanger through which a heating medium flows and which is arranged in an air duct through which air can flow, at least one air mixing chamber which has a warm-air inflow opening and a cold-air inflow opening, at least one closing member controlling the opening cross-sections of the inflow openings, and a shut-off valve which is arranged in the inflow or outflow of the heating medium to the or from the heat exchanger. For reducing the flow resistance in all operating modes, particularly during maximal cooling, the warm-air inflow opening is arranged in the air flow behind the heat exchanger, and a control system controlling the closing member and the shut-off valve is designed such that, with the shutting-off of the warm-air inflow opening, it closes the shut-off valve and, after the closing of the shut-off valve, changes the closing member into an open position which completely opens up the warm-air inflow opening.

Abstract: A vehicle air-conditioning device having at least one control element which supplies a prescribed value to the air-conditioning control unit, a state of flow being provided by an air speed and a degree of turbulence of the air, which can be influenced by the strength of the fan, distribution of air to the discharge nozzles, the discharge direction to the discharge nozzles and further actuators which have an effect on the state of flow, and a thermal state is provided by the temperature distribution and effect of radiation in the vehicle interior. Provision is made for the at least one control panel to be used to prescribed a state of flow desirable for the occupant and a thermal state.

Abstract: A downstream side air passage of a an automotive air conditioner unit is partitioned into at least two or more independent small air passages with a plurality of partition plates extending along an air flow direction. Doors are provided for the respective small air passages and the small air passages each can distribute air that is independently conditioned to desired temperatures within themselves. A driving mechanism drives the doors in a slidable fashion.

Abstract: The temperature of air discharged from first and second passages are adjusted by adjusting the proportion of a flow rate of cold air with respect to that of hot air by means of a first cold air door 26 and a first hot air door 24, and by means of a second cold air door 27 and a second hot air door 25. Discharged air flow rates are controlled by changing the areas of the first and second passages while the proportion of the flow rate of cold air with respect to that of hot air is maintained to be constant by means of the first cold air door 26 and the first hot air door 24, and by means of the second cold air door 27 and the second hot air door 25.

Abstract: In a unit case of a vehicle air conditioning apparatus, air mix chamber is not provided. Cooled air cooled by an evaporator and heated air heated by a heater core are directly introduced to a face opening and a foot opening of the case and then mixed in a face duct and a foot duct. The case has a guide for directing a flow of the heated air or the cooled air. The guide, the foot opening and the face opening are arranged such that the amount of heated air passing through the foot opening is larger than that of the cooled air and the amount of cooled air passing through the face opening is larger than that of the heated air in a bi-level mode. Accordingly, a temperature of air blown from a foot outlet into a passenger compartment is different from that of air blown from a face outlet.

Abstract: Engine cooling water is charged to a flexible diaphragm member (3d) to expand the flexible diaphragm member (3d) so that the substantial sectional area of an air passage (3b) is decreased when a ventilation resistance, in an air conditioning casing (2) in a maximum heating or a foot mode, is increased. On the other hand, the engine cooling water is discharged from the flexible diaphragm member (3d) to deflate the flexible diaphragm member (3d) so that the substantial sectional area of the air passage (3b) is increased when a ventilation resistance, in the air conditioning casing (2) in maximum cooling or face mode, is decreased. Thus, the property of a fan (3) can be changed into a property suitable for foot mode having a large ventilation resistance, while heating air is being supplied.

Abstract: A vehicle air conditioning unit includes an air duct, through which air is blown into a passenger compartment, and a partition board, which partitions the air duct in its inside into a first air passage and a second air passage. Temperature of air in the first air passage and temperature of air in the second air passage can be separately controlled. The air duct has a recess on its one side. An air conditioning device is disposed in the recess. The partition board is deformed correspondingly to the recess so that a corresponding cross-sectional area of the first air passage and a corresponding cross-sectional area of the second air passage should be approximately equal.

Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.

Abstract: An air distribution apparatus for a vehicle includes a partition disposed within a housing which separates a first longitudinal airstream from a blower and a cooling element into first and second airstreams, each separately directed through a heater element to form first and second recombined airstreams. The partition redirects the first and second recombined airstreams to a second direction angularly disposed from the first direction of air flow to enable the first and second output airstreams to be separately transmitted to first and second separate zones within the vehicle. Independently movable blend valves are interposed in the first and second airstreams to provide independent selection of temperature of the first and second output airstreams.

Abstract: A method for automatically controlling the climate in a plurality of climate control zones of a cabin of an automobile comprising at least a driver zone and a passenger zone having a temperature sensor located in a driver side zone and at least one conditioned air outlet vent in each of the zones, the method comprising, obtaining various values indicative of internal and external climate, determining outlet temperatures and mass flow rates of at least one of a driver zone outlet and at least one of a passenger zone outlet based at least on the above obtained values and on other factors relating to the design of the automobile, including a zone air crossover influence factor, providing conditioned air to the cabin from at least one of the driver zone outlets and at least one of the passenger zone outlets at the determined outlet temperatures and mass flow rates.

Abstract: An air conditioner for vehicles is disclosed. This air conditioner feeds recirculation and fresh air in a separate air feeding or a mixed air feeding using a single intake duct and a single intake control door, thus improving its heating and defrosting efficiency during a heating mode operation, and preventing an undesired discharging of white fogging from the vents during a cooling mode operation by changing its air feeding mode from a recirculation air mode to a fresh air mode. This air conditioner also has a simple construction and is reduced in its production cost.

Abstract: An automotive HVAC unit includes a housing defining a first outlet adapted to connect to HVAC ductwork to provide conditioned air to a first temperature zone, a second outlet adapted to connect to HVAC ductwork to provide conditioned air to a second temperature zone, a third outlet adapted to connect to HVAC ductwork to provide conditioned air to a third temperature zone, and a fourth rear outlet adapted to connect to HVAC ductwork to provide conditioned air to a fourth temperature zone within the vehicle. The HVAC unit further includes an evaporator adapted to cool air passing therethrough, a heater core adapted to heat air passing therethrough, a blower adapted to force air through the evaporator and the heater core, and a modular insert mounted within the housing and being adapted to control the flow of conditioned air to the first, second, third and fourth outlets.

Abstract: In an air conditioning system mounted on a vehicle whose roof is openable and closable, adjustment of the air volume from the blower is made based on whether the roof is open or closed. When it is determined that the roof is open, the air volume from the blower is increased according to an increase in a vehicle speed. As such, when the vehicle speed is increased, and airflow entrapped from rearward to frontward becomes strong while the roof is open, adjustment to the air volume is made.

Abstract: A system and method of supplying conditioned air to an aircraft environmental control system during ground support operations that uses at least one flow control door to control the flow of cooling air through a heat exchanger. The heat exchanger removes heat from a flow of compressed air supplied to the system. The temperature of the conditioned compressed air is controlled by selectively positioning the flow control door, which regulates cooling air flow through the heat exchanger.

Abstract: An apparatus (100) controls the temperature of air flow from a temperature control system (10) The apparatus (100) includes a blend door (150), an output gear (140), and a biasing mechanism (124) The biasing mechanism (124) facilitates rotation of the output gear (140) in a first rotation direction (136) and impedes rotation of the output gear (140) in a second rotation direction (138) opposite the first rotation direction (136) This results in the torque necessary to rotate the output gear (140) in the first rotation direction (136) being substantially equal to the torque necessary to rotate the output gear (140) in the second rotation direction (138).

Abstract: An air-conditioning system for a passenger cell of a vehicle includes an evaporator, for cooling an air stream, arranged in succession with a heat exchanger for heating the air stream. The heat exchanger has a heating medium flowing through it permanently. At least one air-mixing space is directly adjacent to the heat exchanger and has a warm-air inlet, covering at least part of the air outlet surface of the heat exchanger, and a cold-air inlet, forming the mouth of a cold-air duct bypassing the heat exchanger. Control members set the opening cross sections of the inlets.