# US 10,864,797 B2 · Air conditioning apparatus for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,797 B2 - Document ID: US10864797B2 - Status: Granted - Kind: B2 - Application number: 15/587,191 - Filed: 2017-05-04 - Published: 2018-05-24 - Granted: 2020-12-15 - Earliest claimed: 2016-11-23 - Assignees: Hyundai Motor Company - Applicants: Hyundai Motor Company - Inventors: Sang Shin Lee; Jae Woo Park; So Yoon Park; Man Ju Oh; Jae Woong Kim; So La Chung - Web page: https://patentgrep.com/patent/US10864797B2 ## CPC - B60H 1/00678: {the axis of rotation being in the door plane, e.g. butterfly doors} - B60H 2001/00721: {Air deflecting or air directing means} - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES ## Abstract Disclosed is an air conditioning apparatus for a vehicle, the air conditioning apparatus including: an air conditioning duct forming a passage for conditioned air, and provided with an outlet on a wall surface thereof for directing conditioned air. A door is provided inside the air conditioning duct, with a rotation shaft being provided on a wall surface opposite to the wall surface of the air conditioning duct. The door opens and closes the air conditioning duct by a rotation thereof. A partition wall protrudes from a surface of the door along the wall surface of the air conditioning duct. The partition wall opens and closes the outlet in response to the rotation of the door. ## Claims ### Claim 1 An air conditioning apparatus for a vehicle, the air conditioning apparatus comprising: an air conditioning duct forming a passage for conditioned air, and provided with an outlet on a wall surface thereof for directing conditioned air; a door provided inside the air conditioning duct, with a rotation shaft being provided on a wall surface of the air conditioning duct, the door configured to open and close the air conditioning duct by a rotation about the rotation shaft; and a partition wall protruding perpendicularly from a surface of the door, the partition wall configured to open and close the outlet in response to the rotation of the door, wherein a pair of protrusions expand outwardly from both sides of the wall surface forming a circular arc portion in the air conditioning duct having a diameter greater than a diameter of the air conditioning duct upstream and downstream of the circular arc portion, wherein the rotation shaft of the door is positioned at a center of the circular arc portion, wherein an entire length of the door is shorter than a diameter of the circular arc portion and longer than a diameter of the air conditioning duct upstream and downstream of the circular arc portion, and wherein the outlet is positioned radially within the circular arc portion between the rotation shaft and one of the pair of protrusions. ### Claim 2 (depends on 1) The air conditioning apparatus of claim 1, wherein the partition wall is disposed downstream of an air flow in the air conditioning duct, and is disposed on the door at a location opposite to the outlet, based on the rotation shaft. ### Claim 3 (depends on 1) The air conditioning apparatus of claim 1, further comprising: a controller for controlling a rotational motion of the door, wherein the door has an outlet-side door at a side of the outlet and an outlet-opposite door opposite to the outlet-side door, wherein, the controller is configured to control the door to close the air conditioning duct in such a way that the controller controls the outlet-side door to be disposed downstream of an air flow further than the outlet, so the outlet is opened and the conditioned air is directed through the outlet. ### Claim 4 (depends on 3) The air conditioning apparatus of claim 3, wherein the controller controls the door to close the air conditioning duct in such a way that the controller controls the outlet-side door to be disposed upstream of the air flow further than the outlet, so the outlet is closed and the air flow in the air conditioning duct is blocked. ### Claim 5 (depends on 3) The air conditioning apparatus of claim 3, wherein the controller rotationally controls the door to open the air conditioning duct in such a way that the partition wall avoids closing the outlet. ### Claim 6 (depends on 3) The air conditioning apparatus of claim 3, wherein the controller rotationally controls the door to open the air conditioning duct in such a way that the partition wall closes the outlet. ### Claim 7 A vehicle with an air conditioning apparatus, the air conditioning apparatus comprising: an air conditioning duct comprising a passage for conditioned air; an outlet on a wall surface of the air conditioning duct for directing a portion of the conditioned air; a door disposed in the air conditioning duct, the door comprising a rotation shaft attached to a wall surface of the air conditioning duct, the door being configured to open and close the air conditioning duct by a rotation about the rotation shaft; and a partition wall attached to the door and protruding perpendicularly from a surface of the door, the partition wall configured to open and close the outlet in response to the rotation of the door, wherein a pair of protrusions expand outwardly from both sides of the wall surface forming a circular arc portion in the air conditioning duct having a diameter greater than a diameter of the air conditioning duct upstream and downstream of the circular arc portion, wherein the rotation shaft of the door is positioned at a center of the circular arc portion, wherein an entire length of the door is shorter than a diameter of the circular arc portion and longer than a diameter of the air conditioning duct upstream and downstream of the circular arc portion, and wherein the outlet is positioned radially within the circular arc portion between the rotation shaft and one of the pair of protrusions. ### Claim 8 (depends on 7) The vehicle of claim 7, wherein the partition wall is disposed downstream of an air flow in the air conditioning duct, and is disposed on the door at a location opposite to the outlet, based on the rotation shaft. ### Claim 9 (depends on 7) The vehicle of claim 7, wherein the air conditioning apparatus is configured to operate in a first mode, a second mode, a third mode, and a fourth mode, wherein a flow of the conditioned air is different between the first, the second, the third, and fourth modes. ### Claim 10 (depends on 9) The vehicle of claim 9, wherein in the first mode, the door blocks a flow of conditioned air through the air conditioning duct, wherein in the second mode, the door blocks a flow of conditioned air through the air conditioning duct and the outlet, wherein in the third mode, the door allows a flow of conditioned air through the air conditioning duct and the outlet, and wherein in the fourth mode, the door allows a flow of conditioned air through the air conditioning duct and the partition wall blocks a flow of conditioned air through the outlet. ### Claim 11 (depends on 10) The vehicle of claim 10, wherein the air conditioning apparatus further comprises: a controller for controlling a rotational motion of the door so as to operate the air conditioning apparatus in the first mode, the second mode, the third mode, and the fourth mode. ### Claim 12 A method of operating an air conditioning apparatus in a vehicle, the method comprising: using a rotating door and a partition wall attached perpendicularly to the rotating door, operating the air conditioning apparatus in a first mode, a second mode, a third mode, and a fourth mode by opening and closing an air conditioning duct for passage of conditioned air and an outlet in the air conditioning duct, wherein in the first mode, the door blocks a flow of conditioned air through the air conditioning duct, wherein in the second mode, the door blocks the flow of conditioned air through the air conditioning duct and the outlet, wherein in the third mode, the door allows the flow of conditioned air through the air conditioning duct and the outlet, and wherein in the fourth mode, the door allows the flow of conditioned air through the air conditioning duct and the partition wall blocks the flow of conditioned air through the outlet, wherein a pair of protrusions expand outwardly from both sides of a wall surface forming a circular arc portion in the air conditioning duct having a diameter greater than a diameter of the air conditioning duct upstream and downstream of the circular arc portion; and rotating a rotation shaft on the door to open and close the air conditioning duct, wherein the rotation shaft of the door is positioned at a center of the circular arc portion, wherein an entire length of the door is shorter than a diameter of the circular arc portion and longer than a diameter of the air conditioning duct upstream and downstream of the circular arc portion, and wherein the outlet is positioned radially within the circular arc portion between the rotation shaft and one of the pair of protrusions. ### Claim 13 (depends on 12) The method of claim 12, further comprising: directing all of the conditioned air through the outlet in the first mode; and directing a portion of the conditioned air through the outlet in the third mode. ### Claim 14 (depends on 12) The method of claim 12, further comprising: opening and closing the outlet using the partition wall in response to a rotation of the door. ### Claim 15 (depends on 12) The method of claim 12, further comprising: using a controller, controlling a rotational motion of the door so as to operate the air conditioning apparatus in the first mode, the second mode, the third mode, and the fourth mode.