US20140234092A1 - Dual fan coaxial flow blower housing assembly - Google Patents
Dual fan coaxial flow blower housing assembly Download PDFInfo
- Publication number
- US20140234092A1 US20140234092A1 US13/769,929 US201313769929A US2014234092A1 US 20140234092 A1 US20140234092 A1 US 20140234092A1 US 201313769929 A US201313769929 A US 201313769929A US 2014234092 A1 US2014234092 A1 US 2014234092A1
- Authority
- US
- United States
- Prior art keywords
- air
- fan
- assembly
- housing
- opening
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/162—Double suction pumps
-
- 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
- B60H1/00457—Ventilation unit, e.g. combined with a radiator
- B60H1/00471—The ventilator being of the radial type, i.e. with radial expulsion of the air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
-
- 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00078—Assembling, manufacturing or layout details
- B60H2001/00085—Assembling, manufacturing or layout details of air intake
Definitions
- HVAC vehicle heating ventilation and air conditioning
- Vehicle HVAC systems have a separate air inlet for fresh air and for recirculated air. Air is directed from the fresh air inlet and/or the recirculated air inlet to the blower within the blower housing.
- the blower housing structurally supports the blower fan. Blower housings with separate fresh air inlets and recirculated air inlets may encounter problems relating to noise levels and vibration.
- HVAC systems tend to be bulky. As the volume of air moved through the system is increased, the space required to house the blower housing also increases. Space available for a blower housing in a vehicle is limited and may impact vehicle design freedom.
- each fan typically has one inlet that is shifted between a fresh air source and a recirculation air source. Multiple fans are not used to draw fresh air and recirculated air through the same inlet.
- This disclosure is directed to a HVAC housing for a dual wheel/dual scroll fan blower that is assembled to a blower housing to create a coaxial air flow path within the blower housing.
- the blower housing may have integral internal ribs that direct air flow from the cowl air flow inlet and indirectly to the blower.
- the internal rib design in the coaxial fan chamber also provides structural support for directly assembling the fans, motor and other components to the blower housing assembly.
- the internal rib design reduces noise and vibrations while improving the flow of air into the blower inlet.
- the fresh air from the cowl air flow inlet may be the only fresh air inlet that provides fresh air to both fans.
- Fresh air may be provided to two more inlet openings from the cowl area to the fans.
- Recirculation air inlets may also be provided that may operate in combination with or independently of the fresh air inlets.
- the dual wheel/dual scroll fan blower may be horizontally oriented, vertically oriented or oriented in any angular orientation required to meet the packaging requirements in the limited space available for the HVAC blower housing assembly in a vehicle.
- the size of the HVAC blower housing assembly may be reduced due to increased efficiency of the coaxial fans and, as a direct result, the size and weight of the instrument panel may be reduced.
- a smaller HVAC blower housing assembly allows more design freedom for instrument panel designs.
- the HVAC blower housing assembly may facilitate providing a partial recirculation strategy that permits part of the air flow to be recirculated with fresh air. Partial recirculation of air within the vehicle in combination with limited fresh air may reduce the load on the HVAC system and may permit system specifications to be less rigorous.
- a HVAC blower housing assembly includes a housing and a motor assembled to the housing.
- a first fan and a second fan are operatively connected to the motor and are coaxially aligned to draw air from a first inlet and a second inlet, respectively.
- An outlet receives air from the first fan and the second fan and forces the air to the passenger compartment.
- a HVAC blower housing assembly includes a housing that defines a first opening and a second opening.
- a motor is disposed within the housing and is connected to a first blower scroll fan and a second blower scroll fan.
- the first blower scroll fan is operatively connected to the motor that draws air through the first opening.
- the second blower scroll fan is operatively connected to the motor that draws air through the second opening.
- a first closure member controls the flow of air through the first opening by controlling the volume of air drawn from a fresh air source and the volume of air drawn from a passenger compartment.
- a second closure member controls the flow of air through the second opening from the passenger compartment.
- the HVAC blower housing assemblies summarized above may also include a jacket that defines an annulus disposed around the housing that facilitates air flow around the housing from one end of the housing to the opposite end of the housing.
- a jacket that defines an annulus disposed around the housing that facilitates air flow around the housing from one end of the housing to the opposite end of the housing.
- a wide variety of fresh air and recirculated air inlets are disclosed. Different door combinations may be provided to control the sources of air provided to the blower scroll fans.
- the blower scroll fans are coaxially aligned and may be oriented vertically, horizontally or in another orientation to suit packaging requirements and space limitations within an instrument panel.
- FIG. 1 is a cross-sectional view of a HVAC blower housing assembly having recirculation air inlets on both ends of the assembly and a fresh air inlet on one ends of the assembly that also provides fresh air through a partial annulus to the opposite end of the assembly.
- FIG. 2 is a diagrammatic cross-sectional view taken along the line 2 - 2 in FIG. 1 .
- FIG. 3 is a cross-sectional view of a HVAC blower housing assembly having recirculation air inlets on both ends of the assembly and a fresh air inlet on one end of the assembly that also provides fresh air through a cylindrical annulus to the opposite end of the assembly.
- FIG. 4 is a cross-sectional view of a vertically oriented HVAC blower housing assembly having recirculation air inlets on both ends of the assembly and fresh air inlets on both ends of the assembly.
- FIG. 5 is a cross-sectional view of a horizontally oriented HVAC blower housing assembly having recirculation air inlets on both ends of the assembly and fresh air inlets on both ends of the assembly.
- a blower assembly 10 that includes a housing 12 .
- a motor 16 is disposed within the housing and is operatively connected to a first scroll fan 18 and a second scroll fan 20 by a shaft 22 .
- the first and second scroll fans 18 and 20 are coaxially aligned on the shaft 22 and draw air from opposite ends of the housing because they are oppositely oriented on the shaft 22 .
- the first scroll fan 18 is connected to a first end 26 of the shaft 22 and the second scroll fan 20 is connected to a second end 28 of the shaft 22 .
- the motor 16 rotates the shaft 22 to operate the first and second scroll fans 18 and 20 .
- a fresh air port 30 admits fresh air F into the housing 12 .
- the fresh air F is also selectively provided to the fresh air duct 32 .
- the fresh air duct 32 is a semi-annular duct that routes air around the first and second scroll fans 18 and 20 .
- a fresh air door 34 may be shifted between a position blocking the fresh air port 30 and an open position in which fresh air F may be provided to the fresh air duct 32 .
- a first recirculated air duct 36 provides recirculated air R.
- a first recirculated air door 38 may be opened and closed to permit or prevent the flow of recirculated air R through the first recirculated air duct 36 .
- the first recirculated air door 38 may be a pivoting door or a roll film door depending on cost and space requirements.
- a second recirculated air duct 40 is provided at the opposite or lower end of the housing 12 and an alternate recirculated air duct 42 may also be provided on the housing 12 to permit recirculated air R to flow into housing 12 .
- a combination door 44 may be moved to a blocking position blocking the second recirculated air duct 40 and the alternate recirculated air duct 42 . The combination door 44 may also be moved to block the flow of fresh air F through the fresh air duct 32 .
- FIG. 2 a diagrammatic representation of the apparatus shown in FIG. 1 is provided.
- the first scroll fan 18 is shown disposed within the housing 12 .
- the fresh air duct 32 is shown to be a semi-annular duct attached to the outside of the housing 12 .
- the first scroll fan 18 is shown in operation expelling air into an outlet duct 50 .
- the air in the outlet duct 50 is outlet air that is provided to a passenger compartment 52 .
- a blower assembly 54 is shown that includes a housing 56 .
- the blower assembly 54 is attached to a bulkhead 58 by a fastener 60 .
- a cowl 62 is also shown at one end of the housing 56 that separates the interior of the vehicle (not shown) from the exterior.
- a motor 64 is assembled to the housing 56 and bulkhead 58 by motor mount ribs 66 that operatively support the motor 64 within the housing 56 .
- a first scroll fan 68 and a second scroll fan 70 are provided on opposite ends of a shaft 72 .
- the shaft 72 is rotated by the motor 64 to provide air flow by rotation of the scroll fans 68 and 70 .
- a fresh air port 76 is defined by the cowl 62 and the housing 56 .
- Fresh air F is supplied to the blower housing assembly 54 through the fresh air port 76 when a fresh air door 78 is opened.
- Fresh air door 78 may be closed to operate the blower housing assembly 54 in a recirculation mode.
- a fresh air duct 80 is provided that encloses the housing 56 .
- the fresh air duct 80 may be a cylindrical annulus through which fresh air is permitted to flow from the fresh air port 76 through a plurality of acoustic air flow ribs 82 to the opposite ends of the blower assembly 54 .
- the acoustic air flow ribs 82 support the housing 56 within the fresh air duct 80 and are constructed to eliminate unwanted noise in the blower assembly 54 .
- a first recirculated air duct 84 is provided in the fresh air duct 80 adjacent the fresh air port 76 .
- Recirculated air R is admitted through the first recirculated air duct 84 from the passenger compartment 52 (shown in FIG. 2 ).
- the first recirculated air duct 84 may be opened and closed by a first roll film door 86 depending upon whether air is requested to be recirculated through the blower assembly 54 .
- a second recirculated air duct 88 is provided on the opposite end of the blower assembly 54 from the fresh air port 76 .
- a second roll film door 90 may be provided that opens and closes the second recirculated air duct 88 to either permit or restrict air from being recirculated by the blower housing assembly 54 .
- FIG. 4 another alternative embodiment of a blower assembly 96 is illustrated.
- a housing 98 of the blower assembly 96 is attached to a cowl 100 of the vehicle (not shown).
- a first scroll fan 106 and a second scroll fan 108 are attached to opposite ends of a shaft 110 .
- a motor 102 operates the scroll fans 106 and 108 , as previously described.
- a first fresh air port 112 is provided through the cowl 100 and may be opened and closed by a first fresh air door 114 .
- a second fresh air port 116 is provided near the other end of the housing 98 and is adapted to be opened and closed by a second fresh air door 118 .
- the second fresh air port 116 may receive air from the outer side of the bulkhead (not shown) that is similar to the bulkhead 58 shown in FIG. 3 .
- a second fresh air door 118 may be opened and closed to allow fresh air F to flow into the housing 98 .
- a first recirculated air duct 120 is provided in the housing 98 near the first fresh air port 112 .
- a first roll film door 122 is provided to open and close the first recirculated air duct 120 .
- a second recirculated air duct 124 is provided in the opposite end of the housing 98 from the first fresh air port 112 .
- the second recirculated air duct 124 may be opened and closed by a second roll film door 126 , as previously described.
- a horizontal blower assembly 130 is illustrated that includes a housing 132 that is adapted to be secured below the cowl 134 of the vehicle (not shown).
- a motor 136 is operatively connected to a first scroll fan 140 and a second scroll fan 142 by a shaft 144 .
- a first fresh air port 146 is provided in the housing 132 on the left side of FIG. 5 .
- the first fresh air port 146 may be opened and closed by rotating a dual function door 148 to open and close the first fresh air port 146 .
- a second fresh air port 150 may be provided between the cowl 134 and housing 132 .
- the second fresh air port 150 is adapted to be opened and closed by a second fresh air door 152 .
- a first recirculated air duct 154 may be provided in the housing 132 to permit air to be recirculated in the passenger compartment 52 (as shown in FIG. 2 ).
- the dual door 148 may be used to open and close the first recirculated air duct 154 by rotating the dual door 148 between the position shown in FIG. 5 in solid lines and a position shown in phantom lines in FIG. 5 .
- a second recirculated air duct 158 is provided in the opposite end of the housing 132 from the first recirculated air duct 154 .
- the second recirculated air duct 158 may be opened and closed by a roll film door 160 , as previously described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/769,929 US20140234092A1 (en) | 2013-02-19 | 2013-02-19 | Dual fan coaxial flow blower housing assembly |
DE202014100613.3U DE202014100613U1 (de) | 2013-02-19 | 2014-02-12 | Koaxialströmungsgebläsegehäuseanordnung mit Doppelventilator |
CN201420068579.0U CN203783932U (zh) | 2013-02-19 | 2014-02-17 | 暖通空调鼓风机组件 |
RU2014106120/11U RU142830U1 (ru) | 2013-02-19 | 2014-02-19 | Вентиляторный блок воздухонагнетателя |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/769,929 US20140234092A1 (en) | 2013-02-19 | 2013-02-19 | Dual fan coaxial flow blower housing assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140234092A1 true US20140234092A1 (en) | 2014-08-21 |
Family
ID=50437497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/769,929 Abandoned US20140234092A1 (en) | 2013-02-19 | 2013-02-19 | Dual fan coaxial flow blower housing assembly |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140234092A1 (de) |
CN (1) | CN203783932U (de) |
DE (1) | DE202014100613U1 (de) |
RU (1) | RU142830U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160264099A1 (en) * | 2015-03-09 | 2016-09-15 | Ford Global Technologies, Llc | Low-profile ventilation system for a motor vehicle |
DE102021101511A1 (de) | 2021-01-25 | 2022-07-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrofahrzeug |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3373423A1 (de) * | 2017-03-09 | 2018-09-12 | Siemens Aktiengesellschaft | Kühlung einer elektrischen maschine |
CN107514669A (zh) * | 2017-08-29 | 2017-12-26 | 奥普家居股份有限公司 | 送风装置 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4779672A (en) * | 1985-11-19 | 1988-10-25 | Toyota Jidosha Kabushiki Kaisha | Air conditioner for vehicle having blower with auxiliary intake port |
US4802405A (en) * | 1985-08-21 | 1989-02-07 | Nippondenso Co., Ltd. | Automotive air-conditioner |
JPH0510016U (ja) * | 1991-07-22 | 1993-02-09 | カルソニツク株式会社 | 自動車用空気調和装置のインテークユニツト |
US6110035A (en) * | 1996-06-26 | 2000-08-29 | Denso Corporation | Blower unit and air conditioner employing the same |
JP2000309216A (ja) * | 1999-04-26 | 2000-11-07 | Denso Corp | 車両用送風機 |
DE10002951C1 (de) * | 2000-01-25 | 2000-11-30 | Daimler Chrysler Ag | Radialgebläse zur Belüftung einer Fahrgastzelle eines Fahrzeugs |
US6789999B2 (en) * | 2002-06-11 | 2004-09-14 | Valeo Climate Control Corp | Center console dual centrifugal fan blower |
EP1731339A1 (de) * | 2005-06-10 | 2006-12-13 | DENSO THERMAL SYSTEMS S.p.A. | Doppelgebläseanordnung für Kraftfahrzeuge |
US20080253879A1 (en) * | 2007-04-12 | 2008-10-16 | Boksun Kang | Blower for vehicles |
US20090036047A1 (en) * | 2007-07-31 | 2009-02-05 | Deneau Kenneth S | Recirculation air flow arrangement for vehicle hvac system |
-
2013
- 2013-02-19 US US13/769,929 patent/US20140234092A1/en not_active Abandoned
-
2014
- 2014-02-12 DE DE202014100613.3U patent/DE202014100613U1/de not_active Expired - Lifetime
- 2014-02-17 CN CN201420068579.0U patent/CN203783932U/zh not_active Expired - Fee Related
- 2014-02-19 RU RU2014106120/11U patent/RU142830U1/ru not_active IP Right Cessation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4802405A (en) * | 1985-08-21 | 1989-02-07 | Nippondenso Co., Ltd. | Automotive air-conditioner |
US4779672A (en) * | 1985-11-19 | 1988-10-25 | Toyota Jidosha Kabushiki Kaisha | Air conditioner for vehicle having blower with auxiliary intake port |
JPH0510016U (ja) * | 1991-07-22 | 1993-02-09 | カルソニツク株式会社 | 自動車用空気調和装置のインテークユニツト |
US6110035A (en) * | 1996-06-26 | 2000-08-29 | Denso Corporation | Blower unit and air conditioner employing the same |
JP2000309216A (ja) * | 1999-04-26 | 2000-11-07 | Denso Corp | 車両用送風機 |
DE10002951C1 (de) * | 2000-01-25 | 2000-11-30 | Daimler Chrysler Ag | Radialgebläse zur Belüftung einer Fahrgastzelle eines Fahrzeugs |
US6789999B2 (en) * | 2002-06-11 | 2004-09-14 | Valeo Climate Control Corp | Center console dual centrifugal fan blower |
EP1731339A1 (de) * | 2005-06-10 | 2006-12-13 | DENSO THERMAL SYSTEMS S.p.A. | Doppelgebläseanordnung für Kraftfahrzeuge |
US20080253879A1 (en) * | 2007-04-12 | 2008-10-16 | Boksun Kang | Blower for vehicles |
US20090036047A1 (en) * | 2007-07-31 | 2009-02-05 | Deneau Kenneth S | Recirculation air flow arrangement for vehicle hvac system |
Non-Patent Citations (2)
Title |
---|
Translation of JP H510016U * |
Translation of Yoshida et al (JP 2000309216 A) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160264099A1 (en) * | 2015-03-09 | 2016-09-15 | Ford Global Technologies, Llc | Low-profile ventilation system for a motor vehicle |
US10377347B2 (en) * | 2015-03-09 | 2019-08-13 | Ford Global Technologies, Llc | Low-profile ventilation system for a motor vehicle and related method of providing a low-profile ventilation system |
DE102021101511A1 (de) | 2021-01-25 | 2022-07-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrofahrzeug |
Also Published As
Publication number | Publication date |
---|---|
RU142830U1 (ru) | 2014-07-10 |
CN203783932U (zh) | 2014-08-20 |
DE202014100613U1 (de) | 2014-03-18 |
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Legal Events
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---|---|---|---|
AS | Assignment |
Owner name: FORD GLOBAL TECHNOLOGIES, LLC, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MARANVILLE, CLAY WESLEY;HOKE, PAUL BRYAN;HURD, JAMES R.;SIGNING DATES FROM 20130213 TO 20130214;REEL/FRAME:029827/0614 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |