Patent application number | Description | Published |
20100206528 | COUNTER-FLOW HEAT EXCHANGER FOR VEHICLE AIR CONDITIONING SYSTEM - A counter-flow heat exchanger for a vehicle air conditioning system includes a first lateral tank having an inlet chamber and an outlet chamber. The first lateral tank includes an inlet port fluidly connected to the inlet chamber and an outlet port fluidly connected to the outlet chamber. The outlet port is positioned adjacent an uppermost portion of the first lateral tank for reducing air pockets. A second lateral tank is laterally spaced apart from the first lateral tank. A first set of tubes fluidly connects the inlet chamber of the first lateral tank to the second lateral tank. A second of tubes fluidly connects the second lateral tank to the outlet chamber of the first lateral tank. | 08-19-2010 |
20100210202 | INDEPENDENT DEFROSTER OUTLET TEMPERATURE AND AIR FLOW CONTROL SYSTEM - An HVAC system is provided and includes an evaporator for providing cold air and a heater core for providing hot air. A heater airflow path directs an airflow through a heater air outlet where a heater damper door controls the volume of the airflow through the heater air outlet. A defroster airflow path directs an airflow through a defroster air outlet and a defroster damper door controls the volume of the airflow through the defroster air outlet. The defroster damper door operates independently from the heater damper door. A separation channel is located between the heater airflow path and the defroster airflow path to separate the airflow of the heater airflow path from the airflow of the defroster airflow path. | 08-19-2010 |
20100248604 | EVAPORATOR FROST PREVENTION CONTROL LOGIC FOR FRONT AND REAR INTEGRATED HVAC SYSTEM - An HVAC system for a vehicle includes a housing, a front HVAC unit with a front blower, and rear HVAC unit with a rear blower. The front and rear HVAC units are housed in the housing. The front blower generates an airflow through a front airflow path and the rear blower generates an airflow through a rear airflow path. A separating wall separates the front airflow path from the rear airflow path. The HVAC system further includes an evaporator with a first portion and a second portion. When the rear blower is switched to an OFF position, the rear HVAC unit automatically operates the rear blower at a minimum voltage so as to continue to generate airflow through the second portion of the evaporator. | 09-30-2010 |
20100273411 | SEAL AND DRAIN STRUCTURE FOR A FRONT AND REAR INTEGRATED HVAC SYSTEM - A dual-integrated HVAC system for an automotive vehicle is provided that includes a housing, a front HVAC unit with a front blower, and rear HVAC unit with a rear blower whereby both the front and rear HVAC units are housed in the housing. The front blower generates an airflow through a front airflow path and the rear blower generates an airflow through a rear airflow path. A separating wall separates the front airflow path from the rear airflow path. The HVAC system further includes an evaporator with a first portion in the front airflow path, a second portion in the rear airflow path, and a seal situated between the first portion and the second portion. | 10-28-2010 |
20100281902 | EVAPORATOR ASSEMBLY FOR AN HVAC SYSTEM - An air conditioning system for a vehicle includes a compressor, a condenser, a first sub-cooler, a metering device, and an evaporator assembly. The evaporator assembly includes an evaporator and a second sub-cooler. The second sub-cooler is arranged below the evaporator such that water condensation from the evaporator drains onto the second sub-cooler to cool the second sub-cooler such that a temperature of the refrigerant exiting the second sub-cooler is less than a temperature of the refrigerant exiting the first sub-cooler. | 11-11-2010 |
20100304654 | INTEGRATED FRONT AND REAR HVAC SYSTEM - An HVAC system for a vehicle includes a housing, a front HVAC unit housed in the housing and having a front blower, a first airflow path, and a front air mix door, a rear HVAC unit housed in the housing and having a rear blower, a second airflow path, and a rear air mix door. The HVAC system further includes an evaporator having a first portion disposed in the first airflow path and a second portion disposed in the second airflow path, and a heating core having a first portion disposed in the first airflow path and a second portion disposed in the second airflow path. An airflow directional door is disposed between the first airflow path and the second airflow path to regulate airflow from the rear blower to the first airflow path. | 12-02-2010 |
20110005271 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, first and second partitioning members are installed at the boundary region between a first cooling section and a second cooling section of an evaporator. The evaporator is divided into the first cooling section and the second cooling section by the first and second partitioning members. In a condition where air is not blown in either one of the passages in which the first cooling section and the second cooling section are provided, air that flows through one of the passages is prevented from flowing into the other passage while passing through the interior of the evaporator. | 01-13-2011 |
20110005709 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing having respective air passages defined therein. In addition, air that is supplied to the interior of the casing from the first blower unit, and which is heated by the heater core, is blown from the fifth front passage alongside the heater core directly into the sixth front passage via sub-defroster dampers, and is blown out toward the front seat of the vehicle from a defroster blow-out port, which is disposed in the sixth front passage. | 01-13-2011 |
20110005710 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a connection duct connects a first blower unit having a first blower fan to a side of a casing forming air passages, whereas a second blower unit having a second blower fan, different from the first blower unit, is connected to a lower portion of the casing. By driving the first blower fan and second blower fan simultaneously, air is supplied to a vehicle compartment from the first blower unit and the second blower unit through inside the casing. A controller controls the driving of the first blower fan and the second blower fan. | 01-13-2011 |
20110005711 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a pair of covers are provided on the respective sides of the casing that is constituted by respective air passages. The covers rotatably support a pivot shaft for a defroster damper and a pivot shaft for a sub-defroster damper. The sub-defroster damper is disposed in a passage directly connecting the heater core with the defroster blow-out port, and is disposed on an upstream side of the defroster damper. First and second blower units supply air into the casing. The sub-defroster damper is disposed so as to face a passage which is disposed even inside the casing. Thus, the flowing direction and the amount of air is adjusted. | 01-13-2011 |
20110005712 | HEAT EXCHANGER FOR VEHICULAR AIR CONDITIONING APPARATUS - A heater core is inclined at a predetermined angle such that an end thereof on the front side of a vehicle is positioned below the other end thereof. A supply conduit for supplying heated water and a discharge conduit for discharging the heated water having circulated through the heater core are connected to a side surface of the heater core. A baffle plate having a substantially L-shaped cross-section is disposed inside the heater core and extends along the extension direction of the supply and discharge conduits. Heated water supplied from the supply conduit is supplied into the heater core. The water flows from the end of the heater core along the upper side of the baffle plate, and thereafter turns round at the other end of the heater core. Then, the water flows along the lower side of the baffle plate and is discharged from the discharge conduit. | 01-13-2011 |
20110005713 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side of a casing constituted by respective air passages. On a lower portion of the casing, a second blower unit different from the first blower unit is connected. A center plate is disposed centrally in a lateral direction of the casing. Air is supplied from the first blower unit to the interior of the casing, whereby cool air cooled by an evaporator and warm air heated by a heater core are mixed together and blown respectively and separately to a driver's seat side and a passenger seat side of the front seats. Also, Air supplied from the second blower unit to the interior of the casing, after being adjusted to a predetermined temperature in the evaporator and the heater core, is supplied to a rear seat side of the vehicle. | 01-13-2011 |
20110005715 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing having respective air passages defined therein, and a second blower unit separate from the first blower unit is connected to a lower portion of the casing. In addition, air is supplied to the interior of the casing from the first blower unit and is cooled by a first cooling section of an evaporator, whereas air that is supplied from the second blower unit is cooled by passing through a second cooling section in the evaporator, which is separated from the first cooling section by a partition plate. | 01-13-2011 |
20110005716 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing having respective air passages defined therein, and a second blower unit separate from the first blower unit is connected to a lower portion of the casing. In addition, air that is supplied to the interior of the casing from the first blower unit and air that is supplied to the interior of the casing from the second blower unit are prevented from mixing together mutually inside the casing by first and second ribs, and by ribs, which are formed respectively to face toward an evaporator and a heater core. | 01-13-2011 |
20110005717 | VEHICULAR AIR CONDITIONING APPARATUS AND TEMPERATURE CONTROL METHOD PERFORMED THEREBY - Air is supplied to the interior of a casing from first and second blower units, such that cool air that has been cooled by an evaporator and warm air that has been heated by a heater core are mixed together and blown out toward a front seat side and a rear seat side of the vehicle, respectively. At this time, a temperature control damper, which adjusts the temperature of air that is blown into the vehicle compartment, causes a flow of warm air having undergone heat exchange in the heater core to be deflected toward a direction where the evaporator is installed. Mixing of the warm air and the cool air can thus be carried out suitably by causing the flow of cool air, which has undergone heat exchange in the evaporator, and the flow of warm air to be oriented in mutually opposite directions. | 01-13-2011 |
20110005718 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first partitioning member and a second partitioning member are installed at a boundary position between a first cooling section and a second cooling section of an evaporator. The evaporator is separated into the first cooling section and the second cooling section by the first and second partitioning members. In the case that air is not blown in either one of the passages that are disposed in the first cooling section and the second cooling section, air that flows through the other of the passages is prevented from flowing into the one passage through the interior of the evaporator. | 01-13-2011 |
20110005719 | HEAT EXCHANGER FOR VEHICULAR AIR CONDITIONING APPARATUS - A heater core is inclined at a predetermined angle such that an end thereof on the front side of a vehicle is positioned below the other end thereof. A supply conduit for supplying heated water and a discharge conduit for discharging the heated water having circulated through the heater core are connected to a side surface of the heater core. A baffle plate having a cross-shaped cross-section is disposed inside the heater core and extends along the direction in which the supply and discharge conduits are arranged. Heated water from the supply conduit is supplied into the heater core, flows from the end of the heater core along the upper side of the baffle plate, and thereafter turns round at the other end of the heater core. Then, the heated water flows along the lower side of the baffle plate and is discharged from the discharge conduit. | 01-13-2011 |
20110005730 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, an evaporator is retained in an inclined position in a casing including air passages. Due to air blown upward through a first front passage and a first rear passage, which are separated from each other, moisture is generated at a lower portion of the evaporator. The moisture is discharged to first drain ports by a first guide panel and to a second drain port by a second guide panel. | 01-13-2011 |
20110005731 | VEHICULAR AIR CONDITIONING APPARATUS - A casing comprises substantially symmetrical first and second divided casings. A second blower unit is provided at a joined region of the first divided casing and the second divided casing. Air is supplied from a first blower unit into the casing, and then, the air cooled by an evaporator and the air heated by a heater core are mixed and supplied to front seats in the vehicle. Air supplied from the second blower unit into the casing is directed toward the front seats and adjusted at a given temperature by a second cooling section of the evaporator and a second heating section of the heater core, and thereafter, supplied to rear seats in the vehicle from a third rear passage which extends so as to surround a first rear passage. | 01-13-2011 |
20110005734 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing constituted by respective air passages. On a lower portion of the casing, the first blower unit is connected together with a second blower unit. As a result of a controller controlling driving of an ventilation switching damper, based on a load voltage to a second blower fan of the second blower unit, a first front passage and a first rear passage are placed in communication, whereby a portion of the air from the first blower unit passes through the first front passage, a communication opening, and the first rear passage, and is supplied to a second cooling section of an evaporator, such that when the second blower fan is rotated at a low speed, freezing of water droplets in the second cooling section is avoided. | 01-13-2011 |
20110009043 | VEHICULAR AIR CONDITIONING APPARATUS - A vehicular air conditioning apparatus includes a casing constituted by respective air passages. The casing has a vent opening and a defroster opening at an upper portion thereof. The vent opening is disposed on a forward side of a vehicle with respect to the defroster opening. A pair of defroster ducts extend in lateral directions respectively from side portions of the defroster opening, and center vent ducts are disposed in a straight line fashion from the vent opening and oriented rearwardly of the vehicle between the pair of the defroster ducts. The center vent ducts open only in the vehicle compartment. In a bi-level mode, a third front passage on the downstream side of the evaporator extends upwardly in a straight line fashion. | 01-13-2011 |
20110009044 | VEHICULAR AIR CONDITIONING APPARATUS - In a vehicular air conditioning apparatus, a first blower unit is connected by a connection duct to a side portion of a casing constituted by respective air passages, and a second blower unit separate from the first blower unit is connected to a Lower portion of the casing. The first blower unit adjusts an inflow rate of external air by means of an adjustment damper, which is disposed to face toward an opening of a duct, and the external air flows into the casing through an intake damper. | 01-13-2011 |
20110127009 | HEAT EXCHANGER FOR VEHICULAR AIR CONDITIONING APPARATUS - In a heater core that constitutes part of a vehicular air conditioning apparatus, a plurality of first and second tubes are provided through which heated water flows through the interior thereof, and fins having louvers therein are disposed between the first and second tubes. Further, the heater core is equipped with a first heating section, which faces toward a first front passage through which air from a first blower unit flows, and a second heating section, which faces toward a first rear passage through which air from a second blower unit flows. Between the first heating section and the second heating section, a partitioning fin is disposed for blocking communication of air mutually between the first and second heating sections. Additionally, the first and second tubes are arranged in parallel to the direction in which the partitioning fin extends. | 06-02-2011 |
20120214392 | METHOD AND APPARATUS FOR OPERATING A VEHICLE HVAC SYSTEM TO PREVENT OUTPUT OF INVERSE AIRFLOW - A front and rear integrated vehicle HVAC system includes a front HVAC portion with a front blower and a front vent outlet, and a rear HVAC portion with a rear blower and a rear vent outlet. The system includes a controller that determines a minimum voltage to be supplied to the rear blower to prevent an inverse air flow from being expelled from the rear outlet and/or a rear blower air intake. A voltage supplied to the rear blower is then set as the greater of the minimum rear blower voltage and a current rear blower voltage. The inverse air flow is air flow in the front HVAC portion generated by the front blower and intended for the front vent outlet that seeps into the rear HVAC portion and is expelled from the rear vent outlet and/or the rear blower air intake. | 08-23-2012 |