US20190168783A1 - Vehicle Body Structure and Rail Train with Vehicle Body - Google Patents
Vehicle Body Structure and Rail Train with Vehicle Body Download PDFInfo
- Publication number
- US20190168783A1 US20190168783A1 US16/194,607 US201816194607A US2019168783A1 US 20190168783 A1 US20190168783 A1 US 20190168783A1 US 201816194607 A US201816194607 A US 201816194607A US 2019168783 A1 US2019168783 A1 US 2019168783A1
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- US
- United States
- Prior art keywords
- vehicle body
- air duct
- body structure
- maintenance
- branch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/009—Means for ventilating only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
Definitions
- Embodiments of the present disclosure relate to a field of an air-conditioning ventilation design of vehicle, and in particular to a vehicle body structure and a rail train with the vehicle body.
- a train air-conditioning unit and an air supply device are generally disposed at the top of a carriage, and an air supply duct is connected with the air-conditioning unit.
- This vehicle air duct system adopts an air supply form having a top static pressure chamber, and is not provided with an independent return air duct.
- This air-conditioning system does not facilitate the requirement of a high-speed train for low center of gravity, and the vehicle air duct system is bad in uniformity of micro air speed and temperature distribution.
- airflow at an air supply opening of the existing vehicle air duct system is easily eddied, thereby not facilitating the airflow guide effect of an air duct on airflow.
- the existing vehicle air duct system is non-detachable, thus causing the problem of difficulty in detection or repair of the air duct.
- a main objective of the present disclosure is to provide a vehicle body structure and a rail train with the vehicle body, intended to solve the problem in the conventional art of difficulty in detection or repair of the air duct.
- a vehicle body structure includes a vehicle body; an air duct, the air duct being provided at a bottom of the vehicle body, and the air duct having a maintenance port; and a maintenance portion, the maintenance portion being connected with the air duct and located at the maintenance port, and the maintenance portion having an opening position for opening the maintenance port and a closing position for closing the maintenance port.
- the air duct includes: a main air duct, the main air duct being provided along a length direction of the vehicle body, and an air supply opening being provided in a middle of the main air duct; and a branch air duct, the branch air duct being provided along a width direction of the vehicle body, a first end of the branch air duct being communicated with the main air duct, and a second end of the branch air duct having an air outlet for communicating with an interior of the vehicle body.
- main air duct and/or the branch air duct are/is provided with the maintenance portion.
- the guide portion includes: a first guide plate, the first guide plate being provided at the air supply opening and located in the air duct, and/or the first guide plate being provided at a joint between the main air duct and the branch air duct and located in the air duct, wherein, the first guide plate being a herringbone guide plate.
- a second end, provided with the air outlet, of the branch air duct is an arc-shaped structure
- the guide portion includes: a second guide plate, the second guide plate being provided in the second end of the branch air duct to divide the second end of the branch air duct into at least two independent air outlet ducts.
- a seal ring being provided in the flange.
- the plurality of branch air ducts being provided at intervals along the length direction of the vehicle body.
- the plurality of branch air ducts are symmetrically provided on two sides of the main air duct.
- the air duct includes: a return air duct, a first end of the return air duct being communicated with the main air duct, and a second end of the return air duct being communicated with the interior of the vehicle body.
- the maintenance portion is a maintenance cover plate
- the maintenance cover plate being detachably provided at the maintenance port.
- a rail train includes a vehicle body structure, the vehicle body structure being the above vehicle body structure.
- a maintenance portion is provided on an air duct at the bottom of a vehicle body.
- a maintenance port of the air duct is at an opened or closing position, in order to detect or repair the interior of the air duct, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.
- FIG. 1 illustrates a structure diagram of a vehicle body structure according to embodiment 1 of the present disclosure
- FIG. 2 illustrates a longitudinal sectional structure diagram of a vehicle body structure according to embodiment 2 of the present disclosure
- FIG. 3 illustrates an enlarged structure diagram of part A in FIG. 2 ;
- FIG. 4 illustrates a horizontal sectional structure diagram of a vehicle body structure according to embodiment 3 of the present disclosure.
- FIG. 5 illustrates a horizontal sectional structure diagram of a vehicle body structure according to embodiment 4 of the present disclosure.
- a vehicle body structure is provided.
- the vehicle body structure includes: a vehicle body, an air duct 10 and a maintenance portion 13 .
- the air duct 10 is disposed at the bottom of the vehicle body.
- the air duct 10 has a maintenance port.
- the maintenance portion 13 is connected with the air duct 10 and located at the maintenance port.
- the maintenance portion 13 has an opening position for opening the maintenance port and a closing position for closing the maintenance port.
- a maintenance portion is provided on an air duct at the bottom of a vehicle body.
- a maintenance port of the air duct is at an opened or closing position, in order to detect or repair the interior of the air duct, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.
- the air duct 10 includes a main air duct 11 and a branch air duct 12 .
- the main air duct 11 is provided along a length direction of the vehicle body, and the middle of the main air duct 11 is provided with an air supply opening 111 .
- the branch air duct 12 is provided along a width direction of the vehicle body, a first end of the branch air duct 12 is communicated with the main air duct 11 , and a second end of the branch air duct 12 has an air outlet 121 for communicating with the interior of the vehicle body.
- the main air duct 11 or the branch air duct 12 is provided with the maintenance portion 13 .
- both the main air duct 11 and the branch air duct 12 may be provided with the maintenance portions 13 .
- Such arrangement enables the main air duct 11 and the branch air duct 12 to be detected or repaired by the maintenance portions, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.
- the vehicle body structure further includes a guide portion 20 , the guide portion 20 being disposed in the air duct 10 to guide or distribute airflow in the air duct 10 .
- the guide portion 20 being disposed in the air duct 10 to guide or distribute airflow in the air duct 10 .
- Such arrangement avoids an eddy at the air supply opening, thus improving the flowing stability of airflow in the air duct.
- the guide portion 20 includes a first guide plate 21 .
- the first guide plate 21 is disposed at the air supply opening 111 and located in the air duct 10 , and/or the first guide plate 21 is disposed at a joint between the main air duct 11 and the branch air duct 12 and located in the air duct 10 , wherein the first guide plate 21 is a herringbone guide plate.
- the herringbone guide plate distributes airflow at the air supply opening and avoids an eddy, thus improving the flowing stability of airflow in the air duct.
- the second end, provided with the air outlet 121 , of the branch air duct 12 is an arc-shaped structure
- the guide portion 20 includes a second guide plate 22 , the second guide plate 22 being disposed in the second end of the branch air duct 12 to divide the second end of the branch air duct 12 into at least two independent air outlet ducts.
- the second guide plate here may be an arc-shaped guide plate, and there is at least one arc-shaped guide plate. Such arrangement enables the second guide plate namely the arc-shaped guide plate to directionally guide airflow and avoids an eddy.
- the air supply opening 111 or the air outlet 121 is provided with a flange 30 .
- they may be both provided with a flange.
- a seal ring is provided in the flange 30 .
- the multiple branch air ducts 12 there are multiple branch air ducts 12 , the multiple branch air ducts 12 being provided at intervals along the length direction of the vehicle body.
- air generated by an air conditioner can be delivered into the vehicle body through the branch air duct in all directions, thereby improving the use experience of a user.
- the multiple branch air ducts 12 are symmetrically disposed on two sides of the main air duct 11 . Such arrangement facilitates mounting of the branch air duct 12 , and improves the stability of airflow in the air duct.
- the air duct 10 includes a return air duct 14 .
- a first end of the return air duct 14 is communicated with the main air duct 11
- a second end of the return air duct 14 is communicated with the interior of the vehicle body.
- At least one end of the return air duct is provided with a flange, in order to mount the return air duct.
- the maintenance portion 13 is a maintenance cover plate.
- the maintenance cover plate is detachably disposed at the maintenance port.
- the maintenance cover plate is connected to a pipeline wall on the periphery of the maintenance port in a fastening connection manner, and a rubber pad is disposed in the maintenance cover plate to improve the sealing performance of connection between the maintenance cover plate and the maintenance port.
- the vehicle body structure of the above embodiments may also be used for the technical field of rail traffic. That is to say, according to another aspect of the present disclosure, a rail train is provided.
- the rail train includes a vehicle body structure, and the vehicle body structure is the vehicle body structure in the above embodiments.
- the vehicle body structure provides the air duct at the bottom of the vehicle body, thereby saving the interior space of the vehicle, and improving the ride comfort of a passenger. It is applied to a small-section vehicle model.
- the air duct is compact in structure and convenient to mount, facilitates effective utilization of a vehicle space, and facilitates maintenance of an air duct system.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
- Duct Arrangements (AREA)
Abstract
Description
- This application is related to and claims the benefit of Chinese Patent Application Number 201810433981.7 filed on May 8, 2018, the contents of which are incorporated herein by reference in their entirety.
- Embodiments of the present disclosure relate to a field of an air-conditioning ventilation design of vehicle, and in particular to a vehicle body structure and a rail train with the vehicle body.
- A train air-conditioning unit and an air supply device are generally disposed at the top of a carriage, and an air supply duct is connected with the air-conditioning unit. This vehicle air duct system adopts an air supply form having a top static pressure chamber, and is not provided with an independent return air duct. This air-conditioning system does not facilitate the requirement of a high-speed train for low center of gravity, and the vehicle air duct system is bad in uniformity of micro air speed and temperature distribution. Moreover, airflow at an air supply opening of the existing vehicle air duct system is easily eddied, thereby not facilitating the airflow guide effect of an air duct on airflow. Furthermore, the existing vehicle air duct system is non-detachable, thus causing the problem of difficulty in detection or repair of the air duct.
- A main objective of the present disclosure is to provide a vehicle body structure and a rail train with the vehicle body, intended to solve the problem in the conventional art of difficulty in detection or repair of the air duct.
- To achieve the above objective, according to an aspect of the present disclosure, a vehicle body structure is provided. The vehicle body structure includes a vehicle body; an air duct, the air duct being provided at a bottom of the vehicle body, and the air duct having a maintenance port; and a maintenance portion, the maintenance portion being connected with the air duct and located at the maintenance port, and the maintenance portion having an opening position for opening the maintenance port and a closing position for closing the maintenance port.
- In some embodiments, wherein the air duct includes: a main air duct, the main air duct being provided along a length direction of the vehicle body, and an air supply opening being provided in a middle of the main air duct; and a branch air duct, the branch air duct being provided along a width direction of the vehicle body, a first end of the branch air duct being communicated with the main air duct, and a second end of the branch air duct having an air outlet for communicating with an interior of the vehicle body.
- In some embodiments, wherein the main air duct and/or the branch air duct are/is provided with the maintenance portion.
- In some embodiments, further including: a guide portion, the guide portion being provided in the air duct to guide or distribute airflow in the air duct.
- In some embodiments, wherein the guide portion includes: a first guide plate, the first guide plate being provided at the air supply opening and located in the air duct, and/or the first guide plate being provided at a joint between the main air duct and the branch air duct and located in the air duct, wherein, the first guide plate being a herringbone guide plate.
- In some embodiments, wherein a second end, provided with the air outlet, of the branch air duct is an arc-shaped structure, and the guide portion includes: a second guide plate, the second guide plate being provided in the second end of the branch air duct to divide the second end of the branch air duct into at least two independent air outlet ducts.
- In some embodiments, wherein the air supply opening and/or the air outlet are/is provided with a flange, a seal ring being provided in the flange.
- In some embodiments, wherein there are a plurality of branch air ducts, the plurality of branch air ducts being provided at intervals along the length direction of the vehicle body.
- In some embodiments, wherein the plurality of branch air ducts are symmetrically provided on two sides of the main air duct.
- In some embodiments, wherein the air duct includes: a return air duct, a first end of the return air duct being communicated with the main air duct, and a second end of the return air duct being communicated with the interior of the vehicle body.
- In some embodiments, wherein the maintenance portion is a maintenance cover plate, the maintenance cover plate being detachably provided at the maintenance port.
- According to another aspect of the present disclosure, a rail train is provided. The rail train includes a vehicle body structure, the vehicle body structure being the above vehicle body structure.
- According to the technical solution of the present disclosure, a maintenance portion is provided on an air duct at the bottom of a vehicle body. By operating the maintenance portion, a maintenance port of the air duct is at an opened or closing position, in order to detect or repair the interior of the air duct, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.
- The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of the present disclosure, and the exemplary embodiments of the present disclosure and the description thereof are used to explain the present disclosure, but do not constitute improper limitations to the present disclosure. In the drawings:
-
FIG. 1 illustrates a structure diagram of a vehicle body structure according to embodiment 1 of the present disclosure; -
FIG. 2 illustrates a longitudinal sectional structure diagram of a vehicle body structure according to embodiment 2 of the present disclosure; -
FIG. 3 illustrates an enlarged structure diagram of part A inFIG. 2 ; -
FIG. 4 illustrates a horizontal sectional structure diagram of a vehicle body structure according to embodiment 3 of the present disclosure; and -
FIG. 5 illustrates a horizontal sectional structure diagram of a vehicle body structure according to embodiment 4 of the present disclosure. - THE DRAWINGS INCLUDE THE FOLLOWING REFERENCE SIGNS
- 10: air duct; 11: main air duct; 111: air supply opening; 12: branch air duct; 121: air outlet; 13: maintenance portion; 14: return air duct;
- 20: guide portion; 21: first guide plate; 22: second guide plate;
- 30: flange.
- It is to be noted that in the case of no conflict, the features in the embodiments and the embodiments in the present application may be combined with each other. The present disclosure is described below with reference to the drawings and in conjunction with the embodiments in detail.
- It is to be noted that terms used herein only aim to describe specific implementation manners, and are not intended to limit exemplar implementations of this application. Unless otherwise directed by the context, singular forms of terms used herein are intended to include plural forms. Besides, it will be also appreciated that when terms “contain” and/or “include” are used in the description, it is indicated that features, steps, operations, devices, assemblies and/or a combination thereof exist.
- As shown in
FIG. 1 toFIG. 5 , according to an embodiment of the present disclosure, a vehicle body structure is provided. - Specifically, as shown in
FIG. 1 , the vehicle body structure includes: a vehicle body, anair duct 10 and amaintenance portion 13. Theair duct 10 is disposed at the bottom of the vehicle body. Theair duct 10 has a maintenance port. Themaintenance portion 13 is connected with theair duct 10 and located at the maintenance port. Themaintenance portion 13 has an opening position for opening the maintenance port and a closing position for closing the maintenance port. - In the present embodiment, a maintenance portion is provided on an air duct at the bottom of a vehicle body. By operating the maintenance portion, a maintenance port of the air duct is at an opened or closing position, in order to detect or repair the interior of the air duct, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.
- In the present embodiment, the
air duct 10 includes amain air duct 11 and abranch air duct 12. Themain air duct 11 is provided along a length direction of the vehicle body, and the middle of themain air duct 11 is provided with an air supply opening 111. Thebranch air duct 12 is provided along a width direction of the vehicle body, a first end of thebranch air duct 12 is communicated with themain air duct 11, and a second end of thebranch air duct 12 has anair outlet 121 for communicating with the interior of the vehicle body. By connecting the branch air duct to the main air duct, air generated by an air conditioner can be delivered into the vehicle body through the branch air duct in all directions, thereby improving the use experience of a user. - As shown in
FIG. 1 , themain air duct 11 or thebranch air duct 12 is provided with themaintenance portion 13. Of course, both themain air duct 11 and thebranch air duct 12 may be provided with themaintenance portions 13. Such arrangement enables themain air duct 11 and thebranch air duct 12 to be detected or repaired by the maintenance portions, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability. - As shown in
FIG. 2 , the vehicle body structure further includes aguide portion 20, theguide portion 20 being disposed in theair duct 10 to guide or distribute airflow in theair duct 10. Such arrangement avoids an eddy at the air supply opening, thus improving the flowing stability of airflow in the air duct. - As shown in
FIG. 3 , theguide portion 20 includes afirst guide plate 21. Thefirst guide plate 21 is disposed at theair supply opening 111 and located in theair duct 10, and/or thefirst guide plate 21 is disposed at a joint between themain air duct 11 and thebranch air duct 12 and located in theair duct 10, wherein thefirst guide plate 21 is a herringbone guide plate. The herringbone guide plate distributes airflow at the air supply opening and avoids an eddy, thus improving the flowing stability of airflow in the air duct. - As shown in
FIG. 2 ,FIG. 4 andFIG. 5 , the second end, provided with theair outlet 121, of thebranch air duct 12 is an arc-shaped structure, and theguide portion 20 includes asecond guide plate 22, thesecond guide plate 22 being disposed in the second end of thebranch air duct 12 to divide the second end of thebranch air duct 12 into at least two independent air outlet ducts. The second guide plate here may be an arc-shaped guide plate, and there is at least one arc-shaped guide plate. Such arrangement enables the second guide plate namely the arc-shaped guide plate to directionally guide airflow and avoids an eddy. - As shown in
FIG. 1 , theair supply opening 111 or theair outlet 121 is provided with aflange 30. Of course, they may be both provided with a flange. A seal ring is provided in theflange 30. Such arrangement achieves firm mounting of a pipeline communicated with the air supply opening and the air outlet, and good sealing performance. - In the present embodiment, there are multiple
branch air ducts 12, the multiplebranch air ducts 12 being provided at intervals along the length direction of the vehicle body. By connecting the multiple branch air ducts to the main air duct, air generated by an air conditioner can be delivered into the vehicle body through the branch air duct in all directions, thereby improving the use experience of a user. - In the present embodiment, the multiple
branch air ducts 12 are symmetrically disposed on two sides of themain air duct 11. Such arrangement facilitates mounting of thebranch air duct 12, and improves the stability of airflow in the air duct. - As shown in
FIG. 1 , theair duct 10 includes areturn air duct 14. A first end of thereturn air duct 14 is communicated with themain air duct 11, and a second end of thereturn air duct 14 is communicated with the interior of the vehicle body. At least one end of the return air duct is provided with a flange, in order to mount the return air duct. Such arrangement enables interior airflow in the vehicle body to return into the air conditioner through the return air duct. - In the present embodiment, the
maintenance portion 13 is a maintenance cover plate. The maintenance cover plate is detachably disposed at the maintenance port. The maintenance cover plate is connected to a pipeline wall on the periphery of the maintenance port in a fastening connection manner, and a rubber pad is disposed in the maintenance cover plate to improve the sealing performance of connection between the maintenance cover plate and the maintenance port. - The vehicle body structure of the above embodiments may also be used for the technical field of rail traffic. That is to say, according to another aspect of the present disclosure, a rail train is provided. The rail train includes a vehicle body structure, and the vehicle body structure is the vehicle body structure in the above embodiments.
- In the present embodiments, the vehicle body structure provides the air duct at the bottom of the vehicle body, thereby saving the interior space of the vehicle, and improving the ride comfort of a passenger. It is applied to a small-section vehicle model. The air duct is compact in structure and convenient to mount, facilitates effective utilization of a vehicle space, and facilitates maintenance of an air duct system.
- In the above embodiment, descriptions of each embodiment are emphasized respectively, and parts which are not elaborated in detail in a certain embodiment may refer to relevant descriptions of other embodiments.
- The above is only the preferred embodiments of the present disclosure, not intended to limit the present disclosure. As will occur to those skilled in the art, the present disclosure is susceptible to various modifications and changes. Any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present disclosure shall fall within the scope of protection of the present disclosure.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201810433981.7 | 2018-05-08 | ||
CN201810433981.7A CN108657205B (en) | 2018-05-08 | 2018-05-08 | Vehicle body structure and have its rail train |
Publications (1)
Publication Number | Publication Date |
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US20190168783A1 true US20190168783A1 (en) | 2019-06-06 |
Family
ID=63778180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/194,607 Abandoned US20190168783A1 (en) | 2018-05-08 | 2018-11-19 | Vehicle Body Structure and Rail Train with Vehicle Body |
Country Status (2)
Country | Link |
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US (1) | US20190168783A1 (en) |
CN (1) | CN108657205B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112848903A (en) * | 2021-03-30 | 2021-05-28 | 中车唐山机车车辆有限公司 | Carriage, magnetic suspension vehicle and magnetic suspension traffic system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112373498A (en) * | 2020-11-03 | 2021-02-19 | 中铁第四勘察设计院集团有限公司 | 45-degree embedded adjustable subway rail top exhaust valve device and exhaust system |
CN113085916A (en) * | 2021-05-17 | 2021-07-09 | 湖南联诚轨道装备有限公司 | Device for quickly overhauling air duct of railway vehicle |
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US2080757A (en) * | 1934-12-17 | 1937-05-18 | Pullman Standard Car Mfg Co | Heating and ventilating system for vehicles |
US2116538A (en) * | 1934-03-26 | 1938-05-10 | Pullman Standard Car Mfg Co | Air conditioning system |
US5054378A (en) * | 1990-07-20 | 1991-10-08 | Speece Donald R | Combination commuter van and air conditioner system therefor |
US20020184827A1 (en) * | 2001-06-06 | 2002-12-12 | Duffy William Christopher | Fire resistant access panel for ducts and air handling equipment |
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CN201300857Y (en) * | 2008-11-24 | 2009-09-02 | 石家庄国祥运输设备有限公司 | High-suction fan air duct system |
CN201400185Y (en) * | 2009-04-03 | 2010-02-10 | 南车青岛四方机车车辆股份有限公司 | High-speed sleeper train air-conditioning duct system |
CN204099804U (en) * | 2014-08-19 | 2015-01-14 | 丹阳市光华汽车内饰件有限公司 | A kind of air channel access door |
JP6228087B2 (en) * | 2014-09-02 | 2017-11-08 | 近畿車輌株式会社 | Railway vehicle |
EP3202634B1 (en) * | 2014-10-03 | 2019-08-21 | Hitachi, Ltd. | Railway car having air conditioning devices in engineer's cabin, galley, and passenger cabin |
CN206288016U (en) * | 2016-10-27 | 2017-06-30 | 中车长春轨道客车股份有限公司 | A kind of railway vehicle cab integral type air channel structure |
CN208101987U (en) * | 2018-02-23 | 2018-11-16 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle bottom air channel structure |
-
2018
- 2018-05-08 CN CN201810433981.7A patent/CN108657205B/en active Active
- 2018-11-19 US US16/194,607 patent/US20190168783A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2116538A (en) * | 1934-03-26 | 1938-05-10 | Pullman Standard Car Mfg Co | Air conditioning system |
US2080757A (en) * | 1934-12-17 | 1937-05-18 | Pullman Standard Car Mfg Co | Heating and ventilating system for vehicles |
US5054378A (en) * | 1990-07-20 | 1991-10-08 | Speece Donald R | Combination commuter van and air conditioner system therefor |
US20020184827A1 (en) * | 2001-06-06 | 2002-12-12 | Duffy William Christopher | Fire resistant access panel for ducts and air handling equipment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112848903A (en) * | 2021-03-30 | 2021-05-28 | 中车唐山机车车辆有限公司 | Carriage, magnetic suspension vehicle and magnetic suspension traffic system |
Also Published As
Publication number | Publication date |
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CN108657205B (en) | 2020-09-29 |
CN108657205A (en) | 2018-10-16 |
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