U.S. patent application number 15/062212 was filed with the patent office on 2017-09-07 for venting laundry dryer with two fans.
The applicant listed for this patent is ATUL VIR. Invention is credited to ATUL VIR.
Application Number | 20170254014 15/062212 |
Document ID | / |
Family ID | 59723888 |
Filed Date | 2017-09-07 |
United States Patent
Application |
20170254014 |
Kind Code |
A1 |
VIR; ATUL |
September 7, 2017 |
VENTING LAUNDRY DRYER WITH TWO FANS
Abstract
The invention relates to a vented laundry dryer, comprising of a
rotating drum covered by an outer case (02), an air inlet duct (1)
and an air outlet duct (6). The said rotating drum (8) can rotate
in both clockwise and anti-clockwise direction on a timer schedule.
An air inlet duct (1) from where the heated air is blown inside the
rotating drum has a fan (4) attached at the end of the air inlet
duct, which pumps air inside and a heater is attached which heats
the air before it blown inside the rotating drum. It further, has
an air outlet duct (6) from where the exhausted hot air is removed
from the said rotating drum with the help of an additional fan (5)
placed at the exterior of the air outlet duct (6). These two fans
work in together in such a manner that the laundry dryer works
efficiently in drying the clothes. The dual fan mechanism for
enabling the extraction of moist air from the rotating drum and
increasing the hot air flow into the drum, in turn reducing the
time required for drying the fabrics in the dryer.
Inventors: |
VIR; ATUL; (Houston,
TX) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
VIR; ATUL |
Houston |
TX |
US |
|
|
Family ID: |
59723888 |
Appl. No.: |
15/062212 |
Filed: |
March 7, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D06F 58/30 20200201;
D06F 2105/24 20200201; D06F 58/20 20130101; D06F 2103/36 20200201;
D06F 58/02 20130101 |
International
Class: |
D06F 58/20 20060101
D06F058/20 |
Claims
1. A vented laundry dryer for drying fabrics, wherein a drying
mechanism includes an air inlet duct, which passes the hot air
inside a rotating drum with the help of one fan which blows hot air
from the outside to the said rotating drum, and an air outlet duct
which carries the exhausted hot air away from the said rotating
drum with the help of second fan.
2. The vented laundry dryer as claimed in claim 1, wherein the said
fan blows hot air generated by a heater into the said rotating drum
which get circulated inside the said rotating drum thereby
absorbing moisture from the fabrics and is exhausted outside the
said rotating drum by means of another fan enabling reduction in
drying time.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The instant application claims priority to Indian Patent
Application Serial No. 747/MUM/2015, filed Mar. 9, 2015, pending,
the entire specification of which is expressly incorporated herein
by reference.
FIELD OF THE INVENTION
[0002] The present invention relates generally to dryers and
methods of drying. More particularly, the present invention relates
to a venting dryer with two fans wherein, first fan is for blowing
hot air into the machine, the second is for extracting the
moisture-laden air out.
BACKGROUND OF THE INVENTION
[0003] In a vented dryer, air is drawn from the surrounding area
(i.e. the laundry room), then heated and blown into the drum where
the wet clothes are tumbled to be dried. This hot air evaporates
some of the water in the damp fabrics, and the resultant
moisture-laden air is then exhausted through a vent duct to the
outside.
[0004] A patent application US20090119943A1 discloses a vented
dryer having a drying chamber for items to be dried, a supply air
duct to supply air, in which is situated a heater for heating the
supply air and the heated supply air (process air) can be directed
by means of a first fan over the items to be dried, an exhaust air
duct, a motor for driving the drying chamber, a first heat
exchanger in the exhaust air duct and a condensate pan arranged
beneath the first heat exchanger, whereby the vented dryer has
first means for the discharge of warm air from a housing interior
surrounding the motor toward the condensate pan and away across the
latter. The invention also relates to a method for the operation of
this vented dryer.
[0005] A patent application EP 2642017 A1 discloses a vented
laundry dryer which comprises a casing supporting a revolving drum
and having a basement, and an air circulation system, the air
circulation system including an inlet duct to intake air from the
outside to the drum and a exhaust tube to exhaust the air from the
drum to the outside. The exhaust tube is realized in correspondence
of the basement and includes a connecting device apt to connect
said exhaust tube to an external exhaust tube. The connecting
device is realized integral to the exhaust tube.
[0006] A patent application US 20140165420 A1 discloses a vented
laundry dryer, comprising an air inlet duct, an air outlet duct, a
heat recovery system for transferring heat from the air outlet duct
to the air inlet duct, and an additional heater, wherein the heat
recovery system is a heat pump comprising an evaporator, a
liquefier, a condenser, and a relaxation unit, wherein the
liquefier is thermally coupled to the air inlet duct, and the
evaporator is thermally coupled to the air outlet duct, and a
relaxation property of the relaxation unit can be adjusted
depending on at least one parameter that is connected to an
activity of the additional heater. A method is used to operate a
vented heat dryer comprising an additional heater and a heat pump
having a relaxation unit, wherein the method comprises the
following steps: (a) monitoring at least one parameter that is
connected to an activity of the additional heater; and (b) changing
a relaxation property of the relaxation unit depending on the at
least one parameter.
OBJECTS OF THE INVENTION
[0007] The object of the present invention is to provide a vented
dryer with two fans. Another object of the present invention is to
provide for a vented dryer wherein, one fan blows hot air into the
dryer and the second fan extracts the moist air out of the
dryer.
SUMMARY OF THE INVENTION
[0008] The present invention relates to a venting dryer with two
fans. Traditionally, venting dryers come with only one fan, which
introduces hot air into the machine. However, the single
fan-venting dryers face the problem of moist air formed due to
moisture of the clothes and hot air. This moist air delays the
drying time of the clothes thereby making such dryers less
efficient.
[0009] The venting dryer with two fans overcomes the problem of
moist air with the introduction of second fan, which acts as an
exhaust to suck out the moist air from the machine thereby reducing
the drying time of the wet clothes.
DESCRIPTION OF DRAWINGS
[0010] FIG. 1 illustrates the side plan view of washer dryer having
dual fan arrangement as shown therein comprising of An Outer Case
(01), Rotating Drum (08), Fan #1 (04), Fan #2 (05), Heating
Assembly (02).
DETAILED DESCRIPTION OF THE INVENTION
[0011] The present invention describes generally to dryers and
methods of drying. More particularly, the present invention relates
to a vented laundry dryer with two fans wherein, the first fan is
for blowing hot air that can be used for drying the fabrics into
the machine and the second is for extracting the moist air out of
the machine.
[0012] According to one of the embodiment of the present invention
this laundry dryer provides a high-efficiency dryer having two
fans, so to be able to operate such that one fan is for blowing hot
air into the machine; the second is for extracting the moist air
out. Furthermore, it must be possible to obtain this flexibility in
an easy and simple way, without requiring any major actions to be
carried out on the dryer.
[0013] According to one of the embodiment of the present invention,
a laundry dryer, particularly comprising an outer case (01); a
rotating drum covered by an outer case (3), an air inlet duct (1)
and air outlet duct (6). The said rotating drum (8) can rotate in
both clockwise and anti-clockwise direction on a timer schedule; an
air inlet duct (1) from where the heated air is blown inside the
rotating drum has a fan (4) attached at the end of the air inlet
duct, which pumps air inside and a heater is attached which heats
the air before it blown inside the rotating drum. It further, has
an air outlet duct (6) from where the exhausted hot air is removed
from the said rotating drum with the help of an additional fan (5)
placed at the exterior of the air outlet duct. These two fans work
in together in such a manner that the laundry dryer works
efficiently in drying the clothes. Thus, the vented laundry dryer
of the present invention consists of one fan (4) that blows hot air
into the rotating drum via air inlet duct and another fan (5) to
remove the exhausted hot air from the rotating drum via air outlet
duct.
[0014] The hot air is introduced from the laundry room using a
standard blower and motor attached (together as heating element and
heater housing assembly hereafter) (2) inside the laundry dryer
machine. The heating assembly (2) heats the air which is then
introduced into the rotating drum (8) containing the fabrics to be
dried, with the help of the first fan (4). The hot air circulates
inside the drum (7) thereby helping in drying the clothes in the
dryer. The moist air created during the drying of the clothes is
then exhausted out of the machine by means of second fan (5),
thereby increasing the hot air-flow in the machine and reducing the
drying time. Thus, the first fan (4) is for blowing hot air into
the machine, the second fan (5) is for extracting the air out
wherein; the said arrangement can be applied in a stand-alone
dryer, or in the dryer segment of a combo washer dryer (venting
type).
[0015] The main advantage of this invention is that the dual fans
overcome the problem of the exhausting moist air from the drum by
blowing hot air into it with the help of one fan and extracting the
moist air with second fan and this reduces the time required for
the drying of the fabrics.
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