WO2011001800A1 - アスピレータおよびそれを用いた車両用空調装置 - Google Patents
アスピレータおよびそれを用いた車両用空調装置 Download PDFInfo
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- WO2011001800A1 WO2011001800A1 PCT/JP2010/059766 JP2010059766W WO2011001800A1 WO 2011001800 A1 WO2011001800 A1 WO 2011001800A1 JP 2010059766 W JP2010059766 W JP 2010059766W WO 2011001800 A1 WO2011001800 A1 WO 2011001800A1
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- Prior art keywords
- air
- aspirator
- nozzle
- vehicle interior
- scroll
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00792—Arrangement of detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
- B60H1/248—Air-extractors, air-evacuation from the vehicle interior
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/42—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow characterised by the input flow of inducing fluid medium being radial or tangential to output flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2201/00—Application of thermometers in air-conditioning systems
- G01K2201/02—Application of thermometers in air-conditioning systems in vehicles
Definitions
- the present invention relates to an aspirator suitable for application to a vehicle air conditioner and a vehicle air conditioner using the aspirator.
- an aspirator that uses a fluid to create a reduced pressure state by using a venturi effect is used in order to guide the air in the vehicle interior to a temperature sensor installation portion that detects the temperature in the vehicle interior.
- an aspirator includes a nozzle that sucks secondary air, which is vehicle interior air, into an installation portion of a vehicle interior temperature sensor, a main body that forms an air flow path on the outer periphery of the nozzle so as to surround the nozzle, and the main body Is connected to the air flow path of the air conditioning unit, is connected to the primary air inflow passage through which a part of the air flow flows from the air conditioning unit side, and the open end side of the main body, and the tip of the nozzle is opened near the throat And a diffuser.
- the axis center of the nozzle that sucks the secondary air is configured to match the maximum wind speed part of the wind speed distribution of the primary air in the throat of the diffuser (Refer to Patent Document 1), or a configuration in which the center line of the primary air inflow path is decentered with respect to the central axis of the main body, and the primary air is swirled in the main body so that the throat of the diffuser The air velocity is increased to increase the amount of secondary air sucked (see Patent Document 2).
- JP-A-5-155227 see FIG. 1
- Japanese Patent Laying-Open No. 2005-280433 see FIG. 3
- Patent Document 1 improves the performance of the aspirator by positioning the axis of the nozzle that sucks the secondary air at the position where the wind velocity distribution of the primary air in the throat of the diffuser is maximized. However, it does not increase the wind speed at the throat of the primary air diffuser. Therefore, there has been a limit to improving the performance.
- the thing shown by patent document 2 is increasing the wind speed in the throat part of a diffuser by giving a swirl flow to primary air, and can increase the suction
- the primary air taken into the main body from the primary air inflow path is formed in a cylindrical shape formed around the nozzle only by arranging the center line of the primary air inflow path eccentric to the central axis of the main body. Since it flows into the air flow path from the left and right, it collides in the middle. For this reason, there was a problem that the swirl flow could not be sufficiently provided, and the effect was halved.
- an aspirator is commonly used in a right-hand drive vehicle and a left-hand drive vehicle, there is a tendency that the reverse flow in the air flow path becomes prominent because the primary air inflow direction is different.
- the present invention has been made in view of such circumstances, and provides an aspirator capable of increasing the amount of suction of secondary air and improving performance, and a vehicle air conditioner using the aspirator. Objective.
- an aspirator according to one aspect of the present invention includes a nozzle that sucks secondary air, a body portion that is provided so as to surround the outer periphery of the nozzle, and that forms a scroll-shaped air flow path around the nozzle, A primary air inflow passage that is tangentially connected to a scroll-shaped air flow path, and a diffuser that is connected to the open end side of the main body and the tip of the nozzle is disposed at the throat position.
- An inner wall of the primary air inflow passage communicated with the scroll-shaped air flow path is offset to the outside from the center of the nozzle, and the primary air taken in from the primary air inflow passage is
- the scroll-shaped air flow path is configured to flow from one direction.
- the inner wall of the primary air inflow passage communicating in the tangential direction with the scroll-shaped air flow passage formed on the outer periphery of the nozzle is offset outward from the center of the nozzle that sucks the secondary air. Since the primary air taken in from the primary air inflow passage is configured to flow from one direction into the scroll-shaped air flow passage, it is taken into the main body from the primary air inflow passage. The primary air flow thus guided is guided in one direction by the outer peripheral surface of the nozzle, turns into a swirl flow along the scroll-shaped air flow path, flows into the throat portion of the diffuser from the open end side, and the venturi at the throat portion. Due to the effect, secondary air is sucked through the nozzle.
- the primary air passing through the throat flows along the inner surface of the diffuser, is decompressed, and flows out to the outside.
- the flow rate of primary air flowing into the throat of the diffuser through the scroll-shaped air flow path can be increased, the venturi effect at the throat can be increased, and the amount of secondary air sucked can be increased. Performance can be improved.
- the main body portion is provided with ribs extending from an inner wall of the primary air inflow passage to an outer peripheral surface of the nozzle and partitioning the scroll-shaped air flow passage. It is good.
- the main air is taken into the main body from the primary air inflow path. Further, the primary air flow can be guided in one direction through the ribs, and the reverse flow of the primary air in the scroll-shaped air flow path can be prevented. For this reason, airflows do not collide with each other in the scroll-shaped air flow path, and a swirl flow in one direction can be reliably given to the primary air, the flow velocity is increased, and the venturi in the diffuser is increased. The effect can be enhanced and the performance of the aspirator can be improved. Moreover, when the aspirator is shared by the right-hand drive vehicle and the left-hand drive vehicle, it is possible to suppress the occurrence of a performance difference due to the difference in the air inflow direction from the primary air inflow passage.
- the aspirator of the present invention may be any of the aspirators described above, wherein the throat portion of the diffuser has a radius of a curved surface forming the throat portion of at least 4.5 mm.
- the radius of the curved surface forming the throat portion of the diffuser is at least 4.5 mm or more, as is clear from the CFD analysis result shown in FIG.
- the wind speed of the secondary air flow generated can be significantly increased and the air volume can be increased. Thereby, a sufficient amount of air can be sucked and circulated with respect to the sensor installation part, and the temperature detection accuracy by the sensor can be increased.
- the aspirator according to the present invention is the aspirator according to any one of the above-described aspirators, wherein the throat portion of the diffuser has a total axial dimension between the tip portion of the nozzle and the R-stop position of the radius of the curved surface forming the throat portion.
- the axial length as a value may be 4 to 6 mm.
- the axis that is the total value of the axial dimensions between the tip of the nozzle in the throat of the diffuser in which the tip of the nozzle is disposed and the R-stop position of the radius of the curved surface forming the throat Since the direction length is 4 to 6 mm, as is clear from the CFD analysis result shown in FIG. 7, the wind speed of the secondary air flow sucked into the temperature sensor installation part is significantly increased.
- the air volume can be increased. Thereby, a sufficient amount of air can be sucked and circulated with respect to the sensor installation part, and the temperature detection accuracy by the sensor can be increased.
- An air conditioner for a vehicle draws air in the vehicle interior to an installation portion of the vehicle interior temperature sensor via an aspirator, and warms the vehicle interior based on the vehicle interior temperature detected by the vehicle interior temperature sensor.
- the aspirator is the aspirator according to any one of claims 1 to 4, and an air pipe that sucks vehicle interior air into the nozzle of the aspirator via an installation portion of the vehicle interior temperature sensor Are connected, and the primary air inflow passage is communicated with the air flow path on the air conditioning unit side.
- the aspirator that sucks the air in the vehicle interior with respect to the installation portion of the vehicle interior temperature sensor is any one of the aspirators described above, and the vehicle interior through the installation portion of the vehicle interior temperature sensor passes through the nozzle of the aspirator.
- Air piping that sucks in air is connected, and the primary air inflow path is connected to the air flow path on the air conditioning unit side, so that it is sucked into the installation part of the passenger compartment temperature sensor as the performance of the aspirator improves.
- the air volume of the vehicle interior air (secondary air) can be increased, and the temperature detection accuracy of the vehicle interior air can be improved. For this reason, the controllability and responsiveness of temperature control by the air conditioner can be improved.
- the primary air flow taken into the main body from the primary air inflow path is guided in one direction by the outer peripheral surface of the nozzle, becomes a swirl flow along the scroll-shaped air flow path, and its open end
- the air flows into the throat of the diffuser from the side, and secondary air is sucked through the nozzle by the venturi effect at the throat.
- the primary air that has passed through the throat flows along the inner surface of the diffuser, is decompressed, and flows out to the outside, increasing the flow rate of the primary air flowing into the throat of the diffuser through the scroll-shaped air flow path. It is possible to increase the venturi effect in the throat and increase the amount of secondary air sucked, thus improving the performance of the aspirator.
- the air volume of the vehicle interior air (secondary air) sucked into the installation portion of the vehicle interior temperature sensor is increased, and the temperature detection accuracy of the vehicle interior air is increased. Therefore, the controllability and responsiveness of temperature control by the air conditioner can be improved.
- FIG. 3 is an aa cross-sectional view of the aspirator shown in FIG. 2.
- FIG. 2 is an expanded sectional view of the diffuser part of the aspirator shown in FIG.
- CFD analysis figure of the relationship between the radius of the throat part of the aspirator shown in FIG. 2, and the wind speed in a sensor installation part.
- CFD analysis figure of the relationship between the axial direction length of the throat part of the aspirator shown in FIG. 2, and the wind speed in a sensor installation part.
- FIG. 1 shows a schematic configuration diagram of a vehicle air conditioner.
- the vehicle air conditioner 1 is a blower unit that pumps outside air (outside air) or inside air (inside air) introduced via an inside / outside air switching damper 2 to an air conditioning unit (HVAC unit; Heating Venting and Air Conditioning Unit) 4. 3 is provided.
- HVAC unit Heating Venting and Air Conditioning Unit
- the air conditioning unit (HVAC unit) 4 is configured such that an evaporator 7, a heater core 8, an air mix damper 9 and the like are disposed in an air flow path 6 formed by a unit case 5, and is sent from the blower unit 3.
- the incoming air is circulated through the evaporator 7 and the heater core 8 to adjust the temperature, and the temperature-controlled air is selectively transmitted from a differential outlet, a face outlet, a foot outlet, etc. provided on the downstream side of the unit case 5. It is set as the structure which controls a vehicle interior to preset temperature by blowing out indoors.
- an aspirator 13 that uses a fluid to create a reduced pressure state by the venturi effect is used.
- the aspirator 13 is provided at an appropriate position on the air conditioning unit 4 side, takes a part of the air circulated in the air flow path 6 and uses it as primary air to create a reduced pressure state by the venturi effect.
- the vehicle interior air is sucked as secondary air through the air pipe 14 and is installed so that the vehicle interior air is circulated through the sensor installation unit 12.
- the nozzle 15 for sucking the passenger compartment air as secondary air is provided with a connection portion 15A of an air pipe 14 (see FIG. 1) at one end, and gradually from the connection portion 15 toward the nozzle tip portion 15B at the other end. It has a cylindrical shape with a thin outer diameter.
- a body portion 17 that forms a scroll-shaped air flow path 16 is integrally formed with the nozzle 15 so as to surround the outer periphery of the nozzle 15.
- the main body portion 17 is integrally provided with a primary air inflow passage 18 that communicates with the scroll-shaped air passage 16 in a tangential direction.
- the primary air inflow passage 18 is T-shaped so as to be orthogonal to the central axis L of the nozzle 15, and its inner wall 18 A is on the outside of the central axis L of the nozzle 15 several millimeters (for example, 2 to 2). It is arranged in an offset state (about 3 mm).
- the main body portion 17 is integrally provided with a rib 19 that extends from the inner wall 18A of the primary air inflow passage 18 to the outer peripheral surface of the nozzle 15 and partitions the scroll-shaped air flow passage 16.
- a diffuser 20 is connected to the open end side of the main body 17.
- the diffuser 20 includes a throat portion 20A whose inner diameter is narrowed by a curved surface corresponding to a portion where the tip portion 15B of the nozzle 15 opens, and the inner diameter gradually increases in a tapered shape from the throat portion 20A to the tip. It is made the shape.
- the throat portion 20A of the diffuser 20 is formed by a curved surface having a radius R, and the radius R is 4.5 mm or more.
- the tip portion 15B of the nozzle 15 is disposed in the range of the length in the axial direction of the throat portion 20A formed by a curved surface having a radius R of the diffuser 20.
- the axial length of the throat portion 20A can be represented by a total value A + B of the axial dimensions A and B between the tip portion 15B of the nozzle 15 and the R stop positions R1 and R2 of the curved surface with the radius R.
- the length A + B is set to 4 to 6 mm, preferably 4.5 mm.
- the following operational effects can be obtained.
- the blower unit 3 When the operation of the vehicle air conditioner 1 is started and the blower unit 3 is rotationally driven, either the outside air or the inside air is introduced into the vehicle air conditioner 1 via the inside / outside air switching damper 2.
- This air is pumped from the blower unit 3 to the air conditioning unit (HVAC unit) 4 on the downstream side, adjusted to the set temperature via the evaporator 7, the heater core 8, the air mix damper 9, etc., and then into the vehicle interior. Be blown out.
- the temperature of the passenger compartment is adjusted to the set temperature.
- the vehicle air conditioner 1 is controlled so that the interior of the vehicle is set to a set temperature. In order to increase the controllability and responsiveness, the vehicle air conditioner 1 is not only improved in performance, but also the vehicle interior temperature is accurately adjusted. Must be well detected.
- the vehicle interior temperature is detected by the vehicle interior temperature sensor 10 provided in the sensor installation unit 12 of the instrument panel 11. In order to increase the detection accuracy, And a sufficient amount of passenger compartment air must be circulated.
- An aspirator 13 is used to suck and circulate air from the passenger compartment to the sensor installation unit 12. A part of the air flow is taken into the aspirator 13 as primary air from the air flow path 6 of the air conditioning unit 4 via the primary air inflow path 18.
- This aspirator 13 is a nozzle in which an inner wall 18A of a primary air inflow passage 18 that communicates in a tangential direction with a scroll-shaped air passage 16 formed on the outer periphery of a nozzle 15 by a main body portion 17 sucks secondary air.
- the primary air taken in from the primary air inflow passage 18 is made to flow into the scroll-shaped air flow path 16 from one direction.
- the primary air flow taken into the main body part 17 from the primary air inflow path 18 is guided in one direction by the outer peripheral surface of the nozzle 15 and becomes a swirl flow along the scroll-shaped air flow path 16 to be opened. It flows into the throat 20A of the diffuser 20 from the end side, and secondary air is sucked through the nozzle 15 by the venturi effect at the throat 20A.
- the primary air that has passed through the throat 20A flows along the inner surface of the diffuser 20, is decompressed, and flows out to the outside. This increases the flow velocity of the primary air flowing into the throat 20A of the diffuser 20 through the scroll-shaped air flow path 16, enhances the venturi effect at the throat 20A, and increases the amount of secondary air suction. Can do.
- the air volume of the vehicle interior air (secondary air) sucked through the air pipe 14 from the sensor installation unit 12 where the vehicle interior temperature sensor 10 is installed is increased and circulates around the vehicle interior temperature sensor 10.
- the vehicle interior air can be increased, and the detection accuracy of the vehicle interior temperature can be increased. Therefore, the controllability and responsiveness of temperature control by the vehicle air conditioner 1 can be improved.
- the ribs 19 that extend from the inner wall 18A of the primary air inflow path 18 to the outer peripheral surface of the nozzle 15 and partition the scroll-shaped air flow path 16 are provided in the main body portion 17.
- the primary air flow taken into the main body portion 17 from the primary air inflow path 18 can be guided in one direction through the ribs 19. Thereby, the reverse flow of the primary air in the scroll-shaped air flow path 16 can be prevented, and collision of the air flows in the air flow path 16 can be prevented.
- a one-way swirl flow can be reliably given to the primary air, and by increasing the flow velocity, the venturi effect in the diffuser 20 can be enhanced, and the performance of the aspirator 13 can be further enhanced. Since the primary air flow can be guided in one direction by the rib 19, when the aspirator 13 is shared by the right-hand drive vehicle and the left-hand drive vehicle, the performance difference is caused by the difference in the air inflow direction from the primary air inflow passage 18. Can be suppressed.
- the radius R of the curved surface forming the throat portion 20A of the diffuser 20 is at least 4.5 mm or more, as is apparent from the CFD (Computational Fluid Dynamics) analysis result shown in FIG.
- the wind speed of the secondary air flow sucked into the installation portion 12 of the sensor 10 can be significantly increased to 0.9 to 1.0 m / s (CFD result), and the air volume can be increased. Therefore, a sufficient amount of air can be sucked and circulated with respect to the sensor installation part 12 by this as well, and the temperature detection accuracy of the vehicle interior air (secondary air) by the vehicle interior temperature sensor 10 can be enhanced. .
- the vehicle interior temperature sensor 10 is installed as apparent from the CFD analysis result shown in FIG.
- the wind speed of the secondary air flow sucked into the section 12 can be significantly increased to 0.95 to 1.05 m / s (CFD result), and the air volume can be increased. Therefore, a sufficient amount of air can be sucked and circulated with respect to the sensor installation part 12 by this as well, and the temperature detection accuracy of the vehicle interior air (secondary air) by the vehicle interior temperature sensor 10 can be enhanced. .
- the present invention is not limited to the invention according to the above-described embodiment, and can be modified as appropriate without departing from the scope of the invention.
- the example in which the aspirator 13 is installed on the upstream side of the evaporator 7 in the air conditioning unit 4 has been described.
- any position may be used as long as air is constantly circulated.
- the installation position of the vehicle interior temperature sensor 10 it is not limited to the position of the said embodiment.
- the nozzle 15, the main body portion 17, and the primary air inflow passage 18 are integrally provided.
- the nozzle 15, the main body portion 17, the primary air inflow passage 18, and the diffuser 20 are appropriately set. It may be configured as a single unit or a separate unit.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
すなわち、本発明の一態様にかかるアスピレータは、二次空気を吸引するノズルと、該ノズルの外周を包囲するように設けられ、その周りにスクロール形状の空気流路を形成する本体部と、該スクロール形状の空気流路に接線方向に連通されている一次空気流入路と、前記本体部の開放端側に接続され、前記ノズルの先端部がその喉部位置に配置されているディフューザと、を備え、前記スクロール形状の空気流路に連通されている前記一次空気流入路の内壁が、前記ノズルの中心よりも外側にオフセットされて配設され、前記一次空気流入路から取り入れられた一次空気が前記スクロール形状の空気流路内に一方向から流入されるように構成されている。
図1には、車両用空調装置の概略構成図が示されている。
車両用空調装置1は、内外気切替えダンパ2を介して導入される車外空気(外気)または車室内空気(内気)を空調ユニット(HVACユニット;Heating Ventilation and Air Conditioning Unit)4に圧送するブロアユニット3を備えている。
車室内空気を二次空気として吸引するノズル15は、一端に空気配管14(図1参照)の接続部15Aが設けられており、該接続部15から他端のノズル先端部15Bに向って漸次外径が細くされた筒型形状とされている。このノズル15の外周を取り囲むようにスクロール形状の空気流路16を形成する本体部17がノズル15と一体成形されている。この本体部17には、スクロール形状の空気流路16に対して接線方向に連通されている一次空気流入路18が一体に設けられている。
車両用空調装置1の運転が開始され、ブロアユニット3が回転駆動されると、内外気切替えダンパ2を介して外気または内気のいずれかが車両用空調装置1に導入される。この空気は、ブロアユニット3から下流側の空調ユニット(HVACユニット)4へと圧送され、エバポレータ7、ヒータコア8およびエアミックスダンパ9等を介して設定温度に温調された後、車室内へと吹出される。これによって、車室内が設定温度に温調される。
4 空調ユニット
10 車室内温度センサ
12 センサ設置部
13 アスピレータ
14 空気配管
15 ノズル
15B ノズル先端部
16 スクロール形状の空気流路
17 本体部
18 一次空気流入路
18A 一次空気流入路の内壁
19 リブ
20 ディフューザ
20A 喉部
L ノズルの中心軸線
R 喉部の曲面の半径
R1,R2 R止まり
A,B ノズル先端部とR止まり間の軸線方向寸法
Claims (5)
- 二次空気を吸引するノズルと、該ノズルの外周を包囲するように設けられ、その周りにスクロール形状の空気流路を形成する本体部と、該スクロール形状の空気流路に接線方向に連通されている一次空気流入路と、前記本体部の開放端側に接続され、前記ノズルの先端部がその喉部位置に配置されているディフューザと、を備え、
前記スクロール形状の空気流路に連通されている前記一次空気流入路の内壁が、前記ノズルの中心よりも外側にオフセットされて配設され、前記一次空気流入路から取り入れられた一次空気が前記スクロール形状の空気流路内に一方向から流入されるように構成されているアスピレータ。 - 前記本体部には、前記一次空気流入路の内壁から前記ノズルの外周面に延長され、前記スクロール形状の空気流路を仕切るリブが設けられている請求項1に記載のアスピレータ。
- 前記ディフューザの喉部は、該喉部を形成する曲面の半径が少なくとも4.5mm以上とされている請求項1または2に記載のアスピレータ。
- 前記ディフューザの喉部は、前記ノズルの先端部と、前記喉部を形成する曲面の半径のR止まり位置との間の軸線方向寸法の合計値である軸線方向長さが4~6mmとされている請求項1ないし3のいずれかに記載のアスピレータ。
- アスピレータを介して車室内温度センサの設置部に車室内空気を吸引し、該車室内温度センサで検出された車室内温度に基づき車室内を温調する車両用空調装置において、
前記アスピレータが請求項1ないし4のいずれかに記載のアスピレータとされ、該アスピレータの前記ノズルに前記車室内温度センサの設置部を経て車室内空気を吸引する空気配管が接続されているとともに、前記一次空気流入路が空調ユニット側の空気流路に連通されている車両用空調装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/320,609 US9085217B2 (en) | 2009-06-29 | 2010-06-09 | Jet pump having scroll shaped flow path |
EP10793970.4A EP2450203B1 (en) | 2009-06-29 | 2010-06-09 | Aspirator and vehicle air-conditioning device using same |
CN201080022415.9A CN102438847B (zh) | 2009-06-29 | 2010-06-09 | 吸气器及使用了该吸气器的车辆用空调装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009-153751 | 2009-06-29 | ||
JP2009153751A JP5511238B2 (ja) | 2009-06-29 | 2009-06-29 | アスピレータおよびそれを用いた車両用空調装置 |
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WO2011001800A1 true WO2011001800A1 (ja) | 2011-01-06 |
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PCT/JP2010/059766 WO2011001800A1 (ja) | 2009-06-29 | 2010-06-09 | アスピレータおよびそれを用いた車両用空調装置 |
Country Status (5)
Country | Link |
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US (1) | US9085217B2 (ja) |
EP (1) | EP2450203B1 (ja) |
JP (1) | JP5511238B2 (ja) |
CN (1) | CN102438847B (ja) |
WO (1) | WO2011001800A1 (ja) |
Families Citing this family (5)
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JP6037848B2 (ja) * | 2013-01-24 | 2016-12-07 | 三菱重工オートモーティブサーマルシステムズ株式会社 | 車両用空調装置 |
US20150165866A1 (en) * | 2013-12-18 | 2015-06-18 | Hyundai Motor Company | Aspirator in-car sensor module for vehicle, installation structure of in-car sensor module and vehicle having the installation structure |
US20160039400A1 (en) * | 2014-08-08 | 2016-02-11 | Ford Global Technologies, Llc | Multi-passageway aspirator |
JP7206814B2 (ja) * | 2018-10-31 | 2023-01-18 | 株式会社デンソー | Pmセンサ |
CN115163357A (zh) * | 2021-10-22 | 2022-10-11 | 浙江瑞旭过滤技术股份有限公司 | 可变流量过滤器组件 |
Citations (3)
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JPH05155227A (ja) | 1991-12-03 | 1993-06-22 | Nippondenso Co Ltd | アスピレータ |
JP2003320844A (ja) * | 2002-04-26 | 2003-11-11 | Mitsubishi Heavy Ind Ltd | 車両用空気調和装置 |
JP2005280433A (ja) | 2004-03-29 | 2005-10-13 | Mitsubishi Heavy Ind Ltd | アスピレータおよび車両空調用アスピレータ |
Family Cites Families (12)
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US2310265A (en) * | 1939-09-18 | 1943-02-09 | Robert P Sweeny | Pneumatic conveying apparatus |
US2663243A (en) | 1951-07-30 | 1953-12-22 | Henry E Wunderlich | Air pickup and suction device |
US3099965A (en) * | 1958-01-02 | 1963-08-06 | Krantz H Fa | Jet conveyors |
US3321891A (en) * | 1964-07-14 | 1967-05-30 | Coanda Henri | Apparatus for transporting atomizable material |
RO66562A2 (fr) | 1974-05-23 | 1978-12-15 | Inst Pentru Creatie Stintific | Procede et dispositif pour l'extraction des gaz a les installations thermique |
US4112695A (en) * | 1977-02-28 | 1978-09-12 | Santa Fe International Corp. | Sea sled for entrenching pipe |
US4227863A (en) * | 1978-09-18 | 1980-10-14 | Raymond Sommerer | Centrifugal aspirator |
US4435129A (en) * | 1979-03-19 | 1984-03-06 | Gyorgy Mika | Vortex injector |
DE3463016D1 (en) * | 1984-03-19 | 1987-05-14 | Siemens Ag | Heating or air conditioning apparatus for motor vehicles with automatic control of the interior temperature |
JPH0579500A (ja) | 1991-09-18 | 1993-03-30 | Kawasaki Heavy Ind Ltd | サイクロンポンプ |
DE19855433B4 (de) * | 1998-11-27 | 2005-10-06 | Siemens Ag | Saugstrahlpumpe |
DE10336379A1 (de) | 2003-08-06 | 2005-03-03 | Behr Gmbh & Co. Kg | Saugdüse |
-
2009
- 2009-06-29 JP JP2009153751A patent/JP5511238B2/ja active Active
-
2010
- 2010-06-09 WO PCT/JP2010/059766 patent/WO2011001800A1/ja active Application Filing
- 2010-06-09 CN CN201080022415.9A patent/CN102438847B/zh not_active Expired - Fee Related
- 2010-06-09 US US13/320,609 patent/US9085217B2/en not_active Expired - Fee Related
- 2010-06-09 EP EP10793970.4A patent/EP2450203B1/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05155227A (ja) | 1991-12-03 | 1993-06-22 | Nippondenso Co Ltd | アスピレータ |
JP2003320844A (ja) * | 2002-04-26 | 2003-11-11 | Mitsubishi Heavy Ind Ltd | 車両用空気調和装置 |
JP2005280433A (ja) | 2004-03-29 | 2005-10-13 | Mitsubishi Heavy Ind Ltd | アスピレータおよび車両空調用アスピレータ |
Also Published As
Publication number | Publication date |
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JP2011006022A (ja) | 2011-01-13 |
CN102438847B (zh) | 2014-05-28 |
US9085217B2 (en) | 2015-07-21 |
EP2450203A1 (en) | 2012-05-09 |
JP5511238B2 (ja) | 2014-06-04 |
EP2450203A4 (en) | 2014-04-30 |
CN102438847A (zh) | 2012-05-02 |
US20120057993A1 (en) | 2012-03-08 |
EP2450203B1 (en) | 2017-09-13 |
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