U.S. patent application number 13/463398 was filed with the patent office on 2013-11-07 for motor vehicle.
The applicant listed for this patent is Barbara Ruhland-Lindner. Invention is credited to Bjoern Gerd LINDNER.
Application Number | 20130291580 13/463398 |
Document ID | / |
Family ID | 49511515 |
Filed Date | 2013-11-07 |
United States Patent
Application |
20130291580 |
Kind Code |
A1 |
LINDNER; Bjoern Gerd |
November 7, 2013 |
MOTOR VEHICLE
Abstract
A motor vehicle having air conditioning unit with a condensate
drain and at least one water reservoir for a water using unit,
especially a water injection unit, with an supply line to the water
using unit. The motor vehicle allows a solid filling of water
reservoir the condensate of the air conditioning unit to be filled
into the water reservoir.
Inventors: |
LINDNER; Bjoern Gerd;
(Schiltach, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ruhland-Lindner; Barbara |
|
|
US |
|
|
Family ID: |
49511515 |
Appl. No.: |
13/463398 |
Filed: |
May 3, 2012 |
Current U.S.
Class: |
62/288 |
Current CPC
Class: |
B60H 1/3233 20130101;
B60H 1/32331 20190501 |
Class at
Publication: |
62/288 |
International
Class: |
F25D 21/14 20060101
F25D021/14 |
Claims
1. A motor vehicle comprising: an air conditioning unit having a
condensate drain; at least one water reservoir for a water using
unit having a supply line to the water using unit; wherein the
water reservoir is filled with condensate of the air conditioning
unit.
2. The motor vehicle according to claim 1, wherein the condensate
drain of the air conditioning unit is connected to the water
reservoir by a tube.
3. The motor vehicle according to claim 2, wherein the water
reservoir is positioned in a lower level as the condensate drain of
air conditioning uni.
4. The motor vehicle according to claim 1, wherein the water
reservoir is positioned near a heat source.
5. The motor vehicle according to claim 1, wherein an overflow is
arranged on the water reservoir to avoid back up of condensate in
the air conditioning unit.
6. The motor vehicle according to claim 1, wherein a filling
opening for manual filling is arranged on the water reservoir.
7. The motor vehicle according to claim 1, wherein a small
auxiliary container is arranged below the air conditioning unit,
which is connected with a higher located water reservoir, and
wherein a pump moves the condensate from the auxiliary container to
the water reservoir.
8. The motor vehicle according to claim 1, wherein the water using
unit is a water injection unit.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a motor vehicle that comprises an
air conditioning unit with a condensate drain and at least one
water reservoir for a water using unit, especially a water
injection unit, with a supply line to the water using unit.
[0003] 2. Description of the Background Art
[0004] Modern motor vehicles contain air conditioning units for
control and adjustment of the temperature and humidity in the cabin
of the motor vehicle. Such air conditioning units produce
condensate by cooling down the air since a certain amount of water
is contained in the air dependent of the temperature of the air. At
higher temperatures the amount of water dissolved in the air is
higher than the amount dissolved in cooled air. Therefore by
cooling down the air the amount of water dissolved in the air is
reduced and the remaining condensate as undissolved water has to be
treated separately. The condensate is not being used even though up
5 kW power consumption is being used for that condensate process.
The Condensate is delivered to the environment of the motor
vehicle. As shown in FIG. 3 the air conditioning unit 4 is located
in the cabin 2 of the motor vehicle 1 at the wall to the front end
3.
[0005] Furthermore, water using units are placed in the motor
vehicle, especially as water injection unit to boost the
performance of a combustion engine by cooling with water or as
windshield wiper fluid unit for cleaning the windshield or the
headlights. These water using units need a separate water
reservoir. The water reservoir is filled up with water manually.
Hence, the water reservoir has to be monitored to guarantee that
enough water is in the water reservoir all over the time.
SUMMARY OF THE INVENTION
[0006] A problem addressed in an embodiment of the invention is to
indicate a motor vehicle, which allows a solid filling of water
reservoir.
[0007] Condensate of the air conditioning unit is filled into a
water reservoir. Consequently, the condensate reuse secures that
the water reservoir is always refilled. A manual refilling of the
water reservoir can drop.
[0008] The process of filling condensate from the air conditioning
unit into the water reservoir is especially simple if the
condensate drain of the air conditioning unit is connected to the
water reservoir by a tube.
[0009] In addition, the water reservoir is positioned in a lower
level as the condensate drain of air conditioning unit. The
advantage of this embodiment contains in abandonment of any
supporting means to transfer the condensate from the air
conditioning unit to the water reservoir.
[0010] Furthermore, the water reservoir is positioned close to a
heat source. Thereby it is allowed that the water is thawed in
wintertime.
[0011] In another aspect of invention, the water reservoir
comprises an overflow to avoid back up condensate in the air
conditioning unit and excessive humidity levels in the vehicle
cabin.
[0012] Moreover, a filling opening for manual filling is arranged
on the water reservoir. This filling opening allows to fill
additions into the condensate located in the water reservoir, for
example, alcohol for a windshield wiper fluid unit.
[0013] In addition, a small auxiliary container is located below
the air conditioning unit, which is connected with the higher
located water reservoir wherein a pump moves the condensate from
the auxiliary container to the water reservoir. The small auxiliary
container can be used by insufficient installation space close the
air conditioning unit.
[0014] Further scope of applicability of the present invention will
become apparent from the detailed description given hereinafter.
However, it should be understood that the detailed description and
specific examples, while indicating preferred embodiments of the
invention, are given by way of illustration only, since various
changes and modifications within the spirit and scope of the
invention will become apparent to those skilled in the art from
this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will become more fully understood from
the detailed description given hereinbelow and the accompanying
drawings which are given by way of illustration only, and thus, are
not limitive of the present invention, and wherein:
[0016] FIG. 1 illustrates a first embodiment of a motor vehicle
according of the invention,
[0017] FIG. 2 illustrates an embodiment of the water reservoir
according to the motor vehicle shown in FIG. 1,
[0018] FIG. 3 illustrates another embodiment of motor vehicle
according to the state of the art
DETAILED DESCRIPTION
[0019] FIG. 1 shows a first embodiment of the motor vehicle
according to an embodiment of the invention.
[0020] A side view of the motor vehicle 1 depicts the cabin 2 and a
front end 3 of the motor vehicle 1, to which the cabin 2 is
affiliated. The cabin 2 comprises an air conditioning unit 4 which
is arranged at the wall to the front end 3 of the motor vehicle 1.
The air conditioning unit 4 have on its basement a condensate drain
6 closed by a tube 7. The tube 7 connects the condensate drain 6
with a water reservoir 5 located in the front end 3 of the motor
vehicle 1. The water reservoir 5 is part of a not shown water using
unit of the motor vehicle 1 as a windshield wiper fluid unit or a
water injection unit to boost the performance of a combustion
engine by cooling. The water reservoir 5 is placed in the motor
vehicle 1 below the air conditioning unit 4. Hence, condensate
produced during cooling down the air in the cabin 2 could flow
without any support from the condensate drain 6 through the tube 7
into the water reservoir 5. Consequently, the condensate is reused
and the water reservoir 5 is refilled by condensate.
[0021] A schematic diagram of the water reservoir 5 is shown in
FIG. 2. The water reservoir 5 comprises an overflow 8 on a side
wall and a filling opening 9 on its top. The overflow 8 is
necessary to avoid back up of condensate in the air conditioning
unit 4 at excessive humidity levels in the cabin 2.
[0022] With help of the filling opening 9 it is possible to fill at
least one addition as alcohol into the water reservoir 5 to get a
water alcohol mixture for avoiding freezing of the water. The
filling opening 9 can be omitted if the water reservoir 5 is
arranged close to a heat source.
[0023] On the side wall which is opposed to the overflow 8 the tube
7 contacts the water reservoir 5 and delivers the condensate from
the air conditioning unit 4. Near the basement a supply line 10 is
arranged for connecting the water reservoir 5 to the water using
unit.
[0024] By capturing condensate from the air conditioning unit 4 and
feeding it into the water reservoir 5 a refill of the water
reservoir 5 during operation of motor vehicle 1 is possible under
defined ambient conditions, especially above 0.degree. C. and by
operation of the air conditioning unit 4. Especially, performance
of combustion engines can be boosted up to 30% by additional
injection of water under conditions where additional performance is
needed. Alternatively, the NO.sub.x rate of a Diesel engine and
fuel consumption is reduced.
[0025] The invention being thus described, it will be obvious that
the same may be varied in many ways. Such variations are not to be
regarded as a departure from the spirit and scope of the invention,
and all such modifications as would be obvious to one skilled in
the art are to be included within the scope of the following
claims.
* * * * *