# US 10,370,008 B2 · Vehicle air-conditioning system and railroad vehicle equipped with same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,008 B2 - Document ID: US10370008B2 - Status: Granted - Kind: B2 - Application number: 14/654,196 - Filed: 2013-12-17 - Published: 2015-12-03 - Granted: 2019-08-06 - Earliest claimed: 2012-12-27 - Assignees: Kawasaki Jukogyo Kabushiki Kaisha - Applicants: Kawasaki Jukogyo Kabushiki Kaisha - Inventors: Koki Kondo; Keiji Sakagawa; Ryosuke Mitani; Kazuto Nakai - Web page: https://patentgrep.com/patent/US10370008B2 ## CPC - B61D 27/0018: {Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating (air-conditioning in general F24F)} - B60H 1/00371: {for vehicles carrying large numbers of passengers, e.g. buses} - B60H 1/245: {located in the roof} - B61D: BODY DETAILS OR KINDS OF RAILWAY VEHICLES (vehicles in general B60; adaptation of vehicles to special systems B61B; underframes B61F) - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES ## Abstract An air-conditioning system in vehicle is installed in a vehicle in which a vehicle body center position and an aisle center position are different, and has an air conditioner. The air-conditioning system in vehicle has first and second outlets arranged on both sides of the vehicle in a vehicle width direction and discharging conditioned air having substantially the same air volume into an interior, and an air regulating member setting a merging position of air flows discharged from the first and second outlets to the position where the line segment connecting the vehicle body center position and the aisle center position is internally divided at a ratio of between 20:80 and 86:14. ## Claims ### Claim 1 An air-conditioning system in vehicle with an air conditioner, the air conditioner sucking interior air of the vehicle and discharging conditioned air regulated in temperature into the interior of the vehicle, the vehicle having a vehicle body center position and an aisle center position, the vehicle body center position and the aisle center position being different from each other by the difference of the number of seat rows on the right and left sides across an aisle in a vehicle width direction, the air-conditioning system comprising: a first outlet and a second outlet configured to be arranged at left-right symmetric positions in the vehicle width direction with respect to the vehicle body center position, each of the first outlet and the second outlet being configured to discharge the conditioned air with substantially the same air volume into the interior; and a first set of regulation plates disposed at the first outlet and a second set of regulation plates disposed the second outlet, wherein the first and second set of air regulation plates are configured to discharge air downwardly from the first outlet and the second outlet such that: a merging position of the downward air flow from the first outlet and the second outlet is a position that divides a line segment connecting the vehicle body center position and the aisle center position; and the merging position is arranged between the vehicle body center position and the aisle center position, wherein: the first outlet is configured to be arranged on a side with many seat rows in the vehicle width direction, and the second outlet is configured to be arranged on a side with fewer seat rows in the vehicle width direction, and an orientation angle with respect to a horizontal plane of all of the first set of regulation plates arranged at the first outlet is smaller than an orientation angle with respect to the horizontal plane of all of the second set of regulation plates arranged at the second outlet. ### Claim 2 (depends on 1) The air-conditioning system according to claim 1, wherein the merging position divides the line segment connecting the vehicle body center position and the aisle center position at a ratio of between 20:80 and 86:14. ### Claim 3 (depends on 1) The air-conditioning system according to claim 1, wherein: the first and second set of air regulation plates are arranged such that at least one of: a length of one of the first set of air regulation plates and the second set of air regulation plates in an air discharging direction; a thickness of one of the first set of air regulation plates and the second set of air regulation plates; and the number of one of the first set of air regulation plates and the second set of air regulation plates is different from that of the other of the first set of air regulation plates and the second set of air regulation plates. ### Claim 4 (depends on 1) The air-conditioning system according to claim 1, further comprising: baggage racks configured to be projected toward the interior on the right and left sides of the vehicle and to be extended in a vehicle length direction, wherein the first outlet and the second outlet are arranged at left-right symmetric positions with respect to the vehicle body center position in a section between a ceiling part of the interior and each of upper surfaces of baggage racks. ### Claim 5 (depends on 1) The air-conditioning system in vehicle according to claim 1, further comprising: at least two interior air suction openings configured to be arranged at lower portions of seats across the aisle and be positioned substantially equidistant from the aisle center position. ### Claim 6 (depends on 1) The air-conditioning system according to claim 1, wherein the merging position is located between the vehicle body center position and the aisle center position, and a ratio of a first distance to a second distance ranges from 0.2 to 0.86, the first distance is a distance between the vehicle body center position and the merging position, and the second distance is a distance between the vehicle body center position and the aisle center position. ### Claim 7 (depends on 1) A railcar comprising the air-conditioning system in vehicle according to claim 1. ### Claim 8 (depends on 1) The air-conditioning system according to claim 1, wherein each of the first and second set of air regulation plates has one end connected to the first outlet or the second outlet and another free end pointing downward and toward the merging position. ### Claim 9 An air-conditioning system in vehicle with an air conditioner, the air conditioner sucking interior air of the vehicle and discharging conditioned air regulated in temperature into the interior of the vehicle, the vehicle having a vehicle body center position and an aisle center position, the vehicle body center position and the aisle center position being different from each other by the difference of the number of seat rows on the right and left sides across an aisle in a vehicle width direction, the air-conditioning system comprising: a first outlet and a second outlet configured to be arranged at left-right symmetric positions in the vehicle width direction with respect to the vehicle body center position, each of the first outlet and the second outlet being configured to discharge the conditioned air with substantially the same air volume into the interior; an air regulating member configured to set a merging position that air flows discharged from the first outlet and the second outlet are joined to a position that a line segment connecting the vehicle body center position and the aisle center position is internally divided such that the merging position is arranged between the vehicle body center position and the aisle center position; and baggage racks configured to be projected toward the interior on the right and left sides of the vehicle and to be extended in a vehicle length direction, wherein the first outlet and the second outlet are disposed at the lower sides of the baggage racks, and the air regulating member is a projection provided on a lower surface of one of the right and left baggage racks and oriented downward. ### Claim 10 An air-conditioning system in vehicle with an air conditioner, the air conditioner sucking interior air of the vehicle and discharging conditioned air regulated in temperature into the interior of the vehicle, the vehicle having a vehicle body center position and an aisle center position, the vehicle body center position and the aisle center position being different from each other by the difference of the number of seat rows on the right and left sides across an aisle in a vehicle width direction, the air-conditioning system comprising: a first outlet and a second outlet configured to be arranged at left-right symmetric positions in the vehicle width direction with respect to the vehicle body center position, each of the first outlet and the second outlet being configured to discharge the conditioned air with substantially the same air volume into the interior; an air regulating member configured to set a merging position that air flows discharged from the first outlet and the second outlet are joined to a position that a line segment connecting the vehicle body center position and the aisle center position is internally divided such that the merging position is arranged between the vehicle body center position and the aisle center position; and baggage racks configured to be projected toward the interior on the right and left sides of the vehicle and to be extended in a vehicle length direction, wherein: the first outlet and the second outlet are disposed at the lower sides of the baggage racks, and the air regulating member is the baggage racks, and one baggage rack has a lower surface in shape different from that of the other baggage rack, wherein the one baggage rack has a wedge-shaped cross section in the vehicle width direction, and a thickness of the wedge-shaped cross section gradually increases in a direction toward the interior of the vehicle. ### Claim 11 (depends on 10) The air-conditioning system according to claim 10, wherein a thickness of the one baggage rack, measured from the lower surface to an upper surface of the baggage rack, is different from that of the other baggage rack. ### Claim 12 (depends on 10) The air-conditioning system according to claim 10, wherein an upper surface of the one baggage rack has the same shape as an upper surface of the other baggage rack.