U.S. patent application number 14/088102 was filed with the patent office on 2014-06-05 for openings in a blower housing for noise reduction.
This patent application is currently assigned to MAGNA Electronics Europe GmbH & Co. KG. The applicant listed for this patent is MAGNA Electronics Europe GmbH & Co. KG. Invention is credited to Brian HAVEL.
Application Number | 20140151000 14/088102 |
Document ID | / |
Family ID | 50726060 |
Filed Date | 2014-06-05 |
United States Patent
Application |
20140151000 |
Kind Code |
A1 |
HAVEL; Brian |
June 5, 2014 |
OPENINGS IN A BLOWER HOUSING FOR NOISE REDUCTION
Abstract
A fan arrangement for a heat exchanger of a motor vehicle, a
system for a motor vehicle, and a motor vehicle. A fan is arranged
downstream of the heat exchanger in an air supply direction. The
fan is arranged in a fan cowling which covers an air passage area
of the heat exchanger and which is arranged spaced from the heat
exchanger in an axial direction and coupled to the heat exchanger
via a sealing part. A plurality of air passages having openings are
arranged opposite each other in the sealing part. The dimensions of
the air passage openings in a direction perpendicular to the air
supply direction, in relation to the peripheral area of the sealing
part, is at least a factor of 0.025 of the diameter of the fan, and
the dimensions of the air passage openings in the direction of the
air supply, is at least 0.0025 of the diameter of the fan.
Inventors: |
HAVEL; Brian;
(Aschaffenburg, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
MAGNA Electronics Europe GmbH & Co. KG |
Sailauf |
|
DE |
|
|
Assignee: |
MAGNA Electronics Europe GmbH &
Co. KG
Sailauf
DE
|
Family ID: |
50726060 |
Appl. No.: |
14/088102 |
Filed: |
November 22, 2013 |
Current U.S.
Class: |
165/122 |
Current CPC
Class: |
F01P 1/06 20130101; F01P
11/12 20130101 |
Class at
Publication: |
165/122 |
International
Class: |
F01P 1/06 20060101
F01P001/06 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 4, 2012 |
DE |
102012222259.6 |
Claims
1. A fan arrangement for a heat exchanger of a motor vehicle, the
fan arrangement comprising: a fan cowling spaced from the heat
exchanger in an air supply direction and which covers an air
passage area of the heat exchanger; a sealing part which couples
the fan cowling to the heat exchanger; and a fan arranged in the
fan cowling downstream of the heat exchanger in the air supply
direction; a plurality of upper air passages arranged at a lower
region of the sealing part; and a plurality of lower air passages
arranged at an upper region of the sealing part and arranged
spatially opposite to the upper air passages, wherein an opening of
each of the upper and lower air passages is sized such that: in a
direction perpendicular to the air supply direction is at least
0.025 of the diameter of the fan; and in a direction of the air
supply, is at least 0.0025 of the diameter of the fan.
2. The fan arrangement of claim 1, wherein the upper air passages
are arranged spatially above fan.
3. The fan arrangement of claim 1, wherein the lower air passages
are arranged spatially below fan.
4. The fan arrangement of claim 1, wherein: the upper air passages
are arranged spatially above fan; and the lower air passages are
arranged spatially below fan.
5. The fan arrangement of claim 1, wherein the openings of adjacent
upper air passages part have different sizes and/or shapes.
6. The fan arrangement of claim 1, wherein the openings of adjacent
lower air passages part have different sizes and/or shapes.
7. The fan arrangement of claim 1, wherein: the openings of
adjacent upper air passages part have different sizes and/or
shapes; and the openings of adjacent upper air passages part have
different sizes and/or shapes
8. The fan arrangement of claim 1, wherein the opening of each of
the upper and lower air passages is sized such that in a direction
perpendicular to the air supply direction is at a maximum of 1/10
of the diameter of the fan.
9. The fan arrangement of claim 1, wherein the opening of each of
the upper and lower air passages have an area proportion of at
least 0.0000625 of an air passage area of the fan.
10. A system for a motor vehicle, the system comprising: a heat
exchanger; a fan arrangement for the heat exchanger, the fan
arrangement including: a fan cowling spaced from the heat exchanger
in an air supply direction and which covers an air passage area of
the heat exchanger; a sealing part which couples the fan cowling to
the heat exchanger; a fan arranged in the fan cowling downstream of
the heat exchanger in the air supply direction; a plurality of
upper air passages arranged at a lower region of the sealing part;
and a plurality of lower air passages arranged at an upper region
of the sealing part and arranged spatially opposite to the upper
air passages, wherein an opening of each of the upper and lower air
passages is sized such that: in a direction perpendicular to the
air supply direction is at least 0.025 of the diameter of the fan;
and in a direction of the air supply, is at least 0.0025 of the
diameter of the fan.
11. A motor vehicle, comprising: a heat exchanger; a fan
arrangement for the heat exchanger, the fan arrangement including:
a fan cowling spaced from the heat exchanger in an air supply
direction and which covers an air passage area of the heat
exchanger; a sealing part which couples the fan cowling to the heat
exchanger; a fan arranged in the fan cowling downstream of the heat
exchanger in the air supply direction; a plurality of upper air
passages arranged at a lower region of the sealing part; and a
plurality of lower air passages arranged at an upper region of the
sealing part and arranged spatially opposite to the upper air
passages, wherein an opening of each of the upper and lower air
passages is sized such that: in a direction perpendicular to the
air supply direction is at least 0.025 of the diameter of the fan;
and in a direction of the air supply, is at least 0.0025 of the
diameter of the fan
12. The motor vehicle of claim 11, wherein the upper air passages
are arranged spatially above fan.
13. The motor vehicle of claim 11, wherein the lower air passages
are arranged spatially below fan.
14. The motor vehicle of claim 11, wherein: the upper air passages
are arranged spatially above fan; and the lower air passages are
arranged spatially below fan.
15. The motor vehicle of claim 11, wherein the openings of adjacent
upper air passages part have different sizes and/or shapes.
16. The motor vehicle of claim 11, wherein the openings of adjacent
lower air passages part have different sizes and/or shapes.
17. The motor vehicle of claim 11, wherein: the openings of
adjacent upper air passages part have different sizes and/or
shapes; and the openings of adjacent upper air passages part have
different sizes and/or shapes
18. The motor vehicle of claim 11, wherein the opening of each of
the upper and lower air passages is sized such that in a direction
perpendicular to the air supply direction is at a maximum of 1/10
of the diameter of the fan.
19. The motor vehicle of claim 11, wherein the opening of each of
the upper and lower air passages have an area proportion of at
least 0.0000625 of an air passage area of the fan.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority 35 U.S.C. .sctn.119
to German Patent Publication No. DE 10 2012 222 259.6 (filed on
Dec. 4, 2012), which is hereby incorporated by reference in its
entirety.
TECHNICAL FIELD
[0002] Embodiments relate to A fan arrangement for a heat exchanger
of a motor vehicle, a system for a motor vehicle, and a motor
vehicle. A fan is arranged downstream of the heat exchanger in an
air supply direction. The fan is arranged in a fan cowling which
covers an air passage area of the heat exchanger and which is
arranged spaced from the heat exchanger in an axial direction and
coupled to the heat exchanger via a sealing part. A plurality of
air passages having openings are arranged opposite each other in
the sealing part. The dimensions of the air passage openings in a
direction perpendicular to the air supply direction, in relation to
the peripheral area of the sealing part, is at least a factor of
0.025 of the diameter of the fan, and the dimensions of the air
passage openings in the direction of the air supply, is at least
0.0025 of the diameter of the fan.
BACKGROUND
[0003] In motor vehicles with internal combustion engines, the
waste heat produced by the internal combustion engine is emitted to
the surrounding atmosphere by a heat exchanger or radiator. In
vehicles with front-mounted engines, the heat exchanger is
installed at the front in the direction of travel and is supplied
with fresh air via radiator grille openings. In addition a fan is
arranged downstream of the heat exchanger and generates an air flow
through the heat exchanger. This is necessary in particular at low
travel speed since the fresh air supplied at low speed causes only
a correspondingly low heat dissipation.
[0004] German Patent Publication DE 198 49 035 A1 discloses a sound
absorption device for the air supply in a construction machine. A
plate-like sound insulation is provided in the region of the air
supply.
[0005] German Patent Publication DE 34 46 950 C1 discloses a heat
exchanger with fan frame and fan. A roller blind is arranged in the
region of the fan frame.
[0006] German Patent Publication DE 78 18 243 U1 discloses a
defined peripheral gap in front of the fan. This peripheral gap is
intended to counter a noise development. Such an air supply is
disclosed in U.S. Pat. No. 5,701,854A and German Patent Publication
DE 10 2008 046 508 A1.
[0007] German Patent Publication DE 10 2004 018 036 A1 discoses
openings of widely varying types in the fan housing outside the fan
circle.
[0008] French Patent Publication FR 2 816 360 discloses such
openings in the fan housing, wherein in the arrangement described,
the fan is located in front of the heat exchanger in the direction
of travel.
[0009] German Patent Publication DE 10 2005 062 366 A1 discloses a
targeted arrangement of impact pressure valves in the front plate
between the fans. The air flowing into the fan housing region at
high speed is diverted by these valves.
[0010] U.S. Patent Publication 2003/0183446 A1 discloses a fan
collar for a fan of a thermal management system for motor vehicles.
To reduce noise, the fan collar has openings surrounding the fan.
The noise reduction is based on the principle of a Helmholtz
resonator.
[0011] German Patent Publication DE 34 14 609 C1 discloses a fan
with upstream heat exchanger and a controllable opening on the
underside of an air guide housing. This opening serves to divert
air.
[0012] German Patent Publication DE 10 2007 017 875 A1 discloses a
fan cowling for industrial drive systems, for example. To reduce
the sound emission, the cowling has slots which prevent the
transmission of body-borne sound in the cowling. The dimensions of
the slots are specifically selected for their effect on body-borne
sound, the axial extension of the slots is defined in relation to
the distance of a connecting region from the edge of the fan
cowling.
[0013] German Patent Publication DE 100 19 237 A1 discloses a
damper material for noise reduction.
[0014] German Patent Publication DE 69 837 088 T2 discloses slots
arranged behind each other in the fan housing and extending around
the fan periphery serve for noise damping.
SUMMARY
[0015] Embodiments relate to a fan arrangement with an enhanced
design in comparison with conventional solutions, in particular
with regard to sound emission.
[0016] In accordance with embodiments, a fan arrangement for a heat
exchanger of a motor vehicle, the fan arrangement including at
least one of: a fan cowling spaced from the heat exchanger in an
air supply direction and which covers an air passage area of the
heat exchanger; a sealing part which couples the fan cowling to the
heat exchanger; a fan arranged in the fan cowling downstream of the
heat exchanger in the air supply direction; a plurality of upper
air passages arranged at a lower region of the sealing part; and a
plurality of lower air passages arranged at an upper region of the
sealing part and arranged spatially opposite to the upper air
passages, wherein an opening of each of the upper and lower air
passages is sized such that in a direction perpendicular to the air
supply direction is at least 0.025 of the diameter of the fan, and
in a direction of the air supply, is at least 0.0025 of the
diameter of the fan.
[0017] In accordance with embodiments, a system for a motor vehicle
may include at least one of: a heat exchanger; and a fan
arrangement for the heat exchanger, the fan arrangement including a
fan cowling spaced from the heat exchanger in an air supply
direction and which covers an air passage area of the heat
exchanger; a sealing part which couples the fan cowling to the heat
exchanger; a fan arranged in the fan cowling downstream of the heat
exchanger in the air supply direction; a plurality of upper air
passages arranged at a lower region of the sealing part; and a
plurality of lower air passages arranged at an upper region of the
sealing part and arranged spatially opposite to the upper air
passages, wherein an opening of each of the upper and lower air
passages is sized such that in a direction perpendicular to the air
supply direction is at least 0.025 of the diameter of the fan, and
in a direction of the air supply, is at least 0.0025 of the
diameter of the fan.
[0018] In accordance with embodiments, a motor vehicle may include
at least one of: a heat exchanger; and a fan arrangement for the
heat exchanger, the fan arrangement including a fan cowling spaced
from the heat exchanger in an air supply direction and which covers
an air passage area of the heat exchanger; a sealing part which
couples the fan cowling to the heat exchanger; a fan arranged in
the fan cowling downstream of the heat exchanger in the air supply
direction; a plurality of upper air passages arranged at a lower
region of the sealing part; and a plurality of lower air passages
arranged at an upper region of the sealing part and arranged
spatially opposite to the upper air passages, wherein an opening of
each of the upper and lower air passages is sized such that in a
direction perpendicular to the air supply direction is at least
0.025 of the diameter of the fan, and in a direction of the air
supply, is at least 0.0025 of the diameter of the fan.
[0019] In accordance with embodiments, a fan arrangement is
provided for a heat exchanger of a motor vehicle, in which a fan is
arranged downstream of the heat exchanger in the air supply
direction, the fan being arranged in a fan cowling which
substantially covers the air passage area of the heat exchanger,
the fan cowling being arranged spaced from the heat exchanger in an
axial direction, the direction of the air flow, and the fan cowling
being coupled to the heat exchanger via a sealing part, wherein in
each case at least two air passage openings are arranged opposite
each other in the sealing part.
[0020] In accordance with embodiments, the at least two air passage
openings may lie spatially above and below the fan.
[0021] In accordance with embodiments, the air passage openings may
be formed as slots.
[0022] In accordance with embodiments, the air passage openings
have structural dimensions that include the axial dimension being
in an axial direction of the fan, and the lateral dimension being
in a lateral direction correspondingly perpendicular thereto, i.e.,
in particular, a direction in a peripheral direction of the
fan.
[0023] In accordance with embodiments, the slots in the lateral
direction have at least a factor of 0.025 of the diameter of the
fan. At maximum, the slot in the lateral direction extends by 1/10
of the diameter of the fan.
[0024] In accordance with embodiments, the dimension of the slots
in the axial direction is at least 0.0025 of the diameter of the
fan, wherein the maximum extension in the axial direction is the
dimension of the transition region in the axial direction plus the
length of the fan in the axial direction.
[0025] In accordance with embodiments, the air passage openings may
have an arbitrary form to allow good adaptability to the design of
the fan cowling. In this regard, an air passage opening may have an
area proportion of at least 0.0000625 of the air passage area of
the fan.
DRAWINGS
[0026] Embodiments will be illustrated by way of example in the
drawings and explained in the description below.
[0027] FIG. 1 illustrates a heat exchanger of a motor vehicle in a
top view, in accordance with embodiments.
[0028] FIG. 2 illustrates a heat exchanger of a motor vehicle in a
top view, in accordance with embodiments.
[0029] FIG. 3 illustrates a heat exchanger of a motor vehicle in a
top view, in accordance with embodiments.
DESCRIPTION
[0030] As illustrated in FIG. 1, provided is a heat exchanger WT of
a motor vehicle in a top view. A fan V is arranged downstream of
the heat exchanger WT in the direction of travel of the motor
vehicle. The fan V is rotatably mounted or otherwise received in a
fan cowling LH, the fan cowling LH surrounding the periphery of the
rotatable parts of the fan V and as, for example, an element having
a flat cross-section, covers the peripheral air passage area of the
heat exchanger WT. The fan cowling LH is assigned in a spaced
manner to the heat exchanger WT in the axial flow direction, i.e.,
the direction of the air flow (denoted by arrows). The transition
between the fan cowling LH and the heat exchanger WT is surrounded
by a peripheral sealing part DT, via which the fan cowling LH is
coupled to the heat exchanger. The air flowing through the heat
exchanger WT is thus fed to and/or aspirated by the fan V.
[0031] In the embodiment illustrated in FIG. 1, the fan cowling LH
and the peripheral sealing part DT, which couples the cowling to
the heat exchanger WT, form a unit which is structural configured
as a common component. Embodiments are not restricted to such, and
thus, for example, the sealing part DT and the fan cowling LH may
be separate components.
[0032] A plurality of lower air passage openings LD, such as, for
example, a pair of lower air passage openings LD, may be spatially
arranged below the fan V in the sealing part DT. These lower air
passage openings are thus arranged in the lower part of the sealing
part DT. The lower air passage openings LD may be arranged having
geometric shapes and/or sizes that are essentially the same as the
other and/or adjacent lower air passage openings.
[0033] A plurality of upper air passage openings LD, such as, for
example, a pair of upper air passage openings LD, may be spatially
arranged above the fan V, i.e., in an upper region of the sealing
part DT. The upper air passage openings LD may be arranged having
geometric shapes and/or sizes that are essentially the same as the
other and/or adjacent upper air passage openings.
[0034] The upper and lower air passage openings LD, are thus,
spatially arranged opposite each other in the sealing part DT. The
spatially orientation terms "above" and "below" are here understood
in relation to the direction of air supply and travel of the motor
vehicle.
[0035] As illustrated in FIG. 2, provided is a heat exchanger WT of
a motor vehicle in a top view. A fan V is arranged downstream of
the heat exchanger WT in the direction of travel of the motor
vehicle. The fan V is rotatably mounted or otherwise received in a
fan cowling LH, the fan cowling LH surrounding the periphery of the
rotatable parts of the fan V and as, for example, an element having
a flat cross-section, covers the peripheral air passage area of the
heat exchanger WT. The fan cowling LH is assigned in a spaced
manner to the heat exchanger WT in the axial flow direction, i.e.,
the direction of the air flow (denoted by arrows). The transition
between the fan cowling LH and the heat exchanger WT is surrounded
by a peripheral sealing part DT, via which the fan cowling LH is
coupled to the heat exchanger. The air flowing through the heat
exchanger WT is thus fed to and/or aspirated by the fan V.
[0036] In the embodiment illustrated in FIG. 2, the fan cowling LH
and the peripheral sealing part DT, which couples the cowling to
the heat exchanger WT, form a unit which is structural configured
as a common component. Embodiments are not restricted to such, and
thus, for example, the sealing part DT and the fan cowling LH may
be separate components.
[0037] A plurality of lower air passage openings LD, such as, for
example, four lower air passage openings LD, may be spatially
arranged below the fan V in the sealing part DT. These lower air
passage openings are thus arranged in the lower part of the sealing
part DT. The lower air passage openings LD may be arranged having
geometric shapes and/or sizes that are essentially the same as the
other and/or adjacent lower air passage openings.
[0038] A plurality of upper air passage openings LD, such as, for
example, four upper air passage openings LD, may be spatially
arranged above the fan V, i.e., in an upper region of the sealing
part DT. The upper air passage openings LD may be arranged having
geometric shapes and/or sizes that are essentially the same as the
other and/or adjacent upper air passage openings.
[0039] The upper and lower air passage openings LD, are thus,
spatially arranged opposite each other in the sealing part DT. The
spatially orientation terms "above" and "below" are here understood
in relation to the direction of air supply and travel of the motor
vehicle.
[0040] As illustrated in FIG. 3, provided is a heat exchanger WT of
a motor vehicle in a top view. A fan V is arranged downstream of
the heat exchanger WT in the direction of travel of the motor
vehicle. The fan V is rotatably mounted or otherwise received in a
fan cowling LH, the fan cowling LH surrounding the periphery of the
rotatable parts of the fan V and as, for example, an element having
a flat cross-section, covers the peripheral air passage area of the
heat exchanger WT. The fan cowling LH is assigned in a spaced
manner to the heat exchanger WT in the axial flow direction, i.e.,
the direction of the air flow (denoted by arrows). The transition
between the fan cowling LH and the heat exchanger WT is surrounded
by a peripheral sealing part DT, via which the fan cowling LH is
coupled to the heat exchanger. The air flowing through the heat
exchanger WT is thus fed to and/or aspirated by the fan V.
[0041] In the embodiment illustrated in FIG. 3, the fan cowling LH
and the peripheral sealing part DT, which couples the cowling to
the heat exchanger WT, form a unit which is structural configured
as a common component. Embodiments are not restricted to such, and
thus, for example, the sealing part DT and the fan cowling LH may
be separate components.
[0042] A plurality of lower air passage openings LD, such as, for
example, five lower air passage openings LD, may be spatially
arranged below the fan V in the sealing part DT. The lower air
passage openings LD are arranged having geometric shapes and/or
sizes that differ from each other and/or adjacent lower air passage
openings.
[0043] A plurality of upper air passage openings LD, such as, for
example, five upper air passage openings LD, may be spatially
arranged above the fan V, i.e., in an upper region of the sealing
part DT. The upper air passage openings LD are arranged having
geometric shapes and/or sizes that differ from each other and/or
adjacent upper air passage openings.
[0044] The upper and lower air passage openings LD may be spatially
arranged opposite each other in the sealing part DT, or may be
arranged to not overlap each other. The spatially orientation terms
"above" and "below" are here understood in relation to the
direction of air supply and travel of the motor vehicle.
[0045] In accordance with embodiments illustrated in FIGS. 1-3, the
air passage openings LD may have structural dimensions that include
the axial dimension being in an axial direction of the fan, and the
lateral dimension being in a lateral direction correspondingly
perpendicular thereto, i.e., in particular, a direction in a
peripheral direction of the fan. Each opening LD in the lateral
direction may have at least a factor of 0.025 of the diameter of
the fan V. At maximum, each opening LD in the lateral direction may
extend by 1/10 of the diameter of the fan. The dimension of each
opening LD in the axial direction may have a factor of at least
0.0025 of the diameter of the fan V, in which the maximum extension
in the axial direction is the dimension of the transition region in
the axial direction plus the length of the fan V in the axial
direction.
[0046] In accordance with embodiments, the air passage openings LD
may have an arbitrary form to allow good adaptability to the design
of the fan cowling LH. In this regard, an air passage opening LD
may have an area proportion of at least 0.0000625 of the air
passage area of the fan V.
[0047] The term "coupled" or "connected" may be used herein to
refer to any type of relationship, direct or indirect, between the
components in question, and may apply to electrical, mechanical,
fluid, optical, electromagnetic, electromechanical or other
connections. In addition, the terms "first," "second," etc. are
used herein only to facilitate discussion, and carry no particular
temporal or chronological significance unless otherwise
indicated.
[0048] Those skilled in the art will appreciate from the foregoing
description that the broad techniques of the embodiments may be
implemented in a variety of forms. Therefore, while the embodiments
have been described in connection with particular examples thereof,
the true scope of the embodiments should not be so limited since
other modifications will become apparent to the skilled
practitioner upon a study of the drawings, specification, and
following claims.
LIST OF REFERENCE SIGNS
[0049] V Fan
[0050] WT Heat exchanger
[0051] LH Fan cowling
[0052] DT Sealing part, sealing portion
[0053] LD Air passage opening
* * * * *