U.S. patent application number 12/735539 was filed with the patent office on 2010-12-02 for boiler particularly for humidifiers.
Invention is credited to Giuseppe Dominici, Luigi Nalini.
Application Number | 20100300376 12/735539 |
Document ID | / |
Family ID | 40292248 |
Filed Date | 2010-12-02 |
United States Patent
Application |
20100300376 |
Kind Code |
A1 |
Nalini; Luigi ; et
al. |
December 2, 2010 |
BOILER PARTICULARLY FOR HUMIDIFIERS
Abstract
A boiler particularly for humidifiers, provided with a tank,
supported by supporting elements, which have a filling and
discharging orifice. A centrifugal discharge pump is supported by
the supporting elements in a position that faces the orifice, so
that the axis of its impeller substantially coincides with the axis
of the orifice.
Inventors: |
Nalini; Luigi; (Padova,
IT) ; Dominici; Giuseppe; (Mestre, IT) |
Correspondence
Address: |
Modiano & Associati
Via Mcravigli, 16
Milano
20123
IT
|
Family ID: |
40292248 |
Appl. No.: |
12/735539 |
Filed: |
February 2, 2009 |
PCT Filed: |
February 2, 2009 |
PCT NO: |
PCT/EP2009/051142 |
371 Date: |
July 26, 2010 |
Current U.S.
Class: |
122/13.3 |
Current CPC
Class: |
F24H 9/124 20130101;
F24H 9/06 20130101 |
Class at
Publication: |
122/13.3 |
International
Class: |
F24H 1/18 20060101
F24H001/18 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 5, 2008 |
IT |
PD2008U000006 |
Claims
1-5. (canceled)
6. A boiler, particularly for humidifiers, provided with a tank,
supported by supporting means, which has a filling and discharging
orifice, comprising a centrifugal discharge pump that is supported
by said supporting means in a position that faces said orifice, the
axis of an impeller of said centrifugal pump substantially
coinciding with the axis of said orifice.
7. The boiler according to claim 6, wherein said centrifugal pump
comprises a casing that has a chamber for accommodating said
impeller associated with a neck for connection to said orifice, at
least one port for filling said tank being provided on said neck,
at least one discharging port being provided on said accommodation
chamber.
8. The boiler according to claim 7, further comprising filling and
discharging ducts for said tank, a filling duct of said filling and
discharging ducts being associated with said at least one filling
port and a discharging duct of said filling and discharging ducts
being associated with said at least one discharging port.
9. The boiler according to claim 6, wherein said supporting means
comprise a panel that can be associated with a wall and is provided
with a supporting shelf for said centrifugal pump and with
supporting brackets for said tank.
10. The boiler according to claim 9, further comprising a filling
connector which is supported by said shelf and is connected to said
filling duct, and a discharging connector, which is supported by
said shelf and is connected to said discharging duct.
Description
[0001] The present invention relates to a boiler particularly for
humidifiers.
BACKGROUND OF THE INVENTION
[0002] Boilers are currently known which comprise: [0003] a
substantially cylindrical tank, provided with a filling and
discharging orifice; [0004] a support, which can be associated with
a wall and is adapted to support the tank in a substantially
vertical position; [0005] a centrifugal pump, which is arranged at
the orifice and is adapted to empty the tank.
[0006] Usually, commonly commercially available generic centrifugal
pumps are used.
[0007] Pumps of this type are associated with the support at the
orifice of the tank and the axis of their impeller is substantially
perpendicular to the axis of the orifice.
[0008] A duct for connection between the orifice and the pump
casing faces the impeller axially, while a delivery duct is
arranged radially to the impeller to discharge the liquid aspirated
by the pump through the connection duct.
[0009] This solution has drawbacks, including the fact that it is
necessary to provide suitable connections between the tank, at the
orifice, and the pump connecting duct, which is sized by the pump
manufacturer for generic uses and therefore is not dedicated to
connection to the tank of the boiler.
[0010] Another drawback of such boilers is that since the discharge
pump is arranged with an axis that is substantially transverse with
respect to the axis of the tank, it is particularly bulky.
SUMMARY OF THE INVENTION
[0011] The aim of the present invention is to provide a boiler,
particularly for humidifiers, that has, other characteristics being
equal, a smaller space occupation than currently known ones.
[0012] Within this aim, an object of the invention is to provide a
boiler that has a pump dedicated to the connection to the tank and
therefore does not require adapters for their connection.
[0013] Another object of the invention is to provide a boiler that
is structurally simple and easy to use and can be manufactured with
low costs.
[0014] This aim and these and other objects that will become better
apparent hereinafter are achieved by a boiler, particularly for
humidifiers, provided with a tank, supported by supporting means,
which has a filling and discharging orifice, characterized in that
it comprises a centrifugal discharge pump that is supported by said
supporting means in a position that faces said orifice, the axis of
the impeller of said centrifugal pump substantially coinciding with
the axis of said orifice.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Further characteristics and advantages of the invention will
become better apparent from the following detailed description of a
preferred but not exclusive embodiment of the boiler according to
the invention, illustrated by way of non-limiting example in the
accompanying drawings, wherein:
[0016] FIG. 1 is a perspective view of a boiler according to the
invention;
[0017] FIG. 2 is a perspective view of a detail of the boiler
according to the invention, without the tank;
[0018] FIG. 3 is a top plan view of the detail shown in FIG. 2 of
the boiler according to the invention;
[0019] FIG. 4 is a sectional view of the boiler according to the
invention, taken along the line IV-IV of FIG. 3;
[0020] FIG. 5 is an enlarged-scale sectional view, taken along the
line V-V of FIG. 3, of the boiler according to the invention;
[0021] FIG. 6 is a front elevation view of a boiler of the
currently known type.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] It is noted that anything found to be already known during
the patenting process is understood not to be claimed and to be the
subject of a disclaimer.
[0023] With reference to FIG. 6, the reference letter A generally
designates a known type of boiler, provided with a cylindrical tank
B that has a filling and discharging orifice connected by means of
a connector C to a centrifugal pump D.
[0024] In particular, the tank B is arranged vertically and has the
tubular connector C arranged substantially vertically.
[0025] The centrifugal pump D is radially associated with the
connector C, and therefore its axis E, at right angles to the axis
F of the connector C, is substantially horizontal.
[0026] A filling duct G is associated with a filling port provided
radially to the connector C in order to fill the tank B.
[0027] With reference to FIGS. 1 to 5, the reference numeral 10
generally designates a boiler, particularly for humidifiers, which
is provided with a tank 11 that is conveniently cylindrical, is
supported by supporting means 12 and is provided with a filling and
discharging orifice 13.
[0028] A particularity of the boiler 10, according to the
invention, is that it comprises a centrifugal discharge pump 14
supported by the supporting means 12 in a position that faces the
orifice 13.
[0029] The axis X of an impeller 17 of the centrifugal pump 14
substantially coincides with the axis of the orifice 13.
[0030] Advantageously, the centrifugal pump 14 comprises a casing
15, which has a chamber 16 for accommodating the impeller 17 that
is associated with a neck 18 for connection to the orifice 13.
[0031] At least one port 19 for filling the tank 11 is conveniently
provided on the neck 18 and at least one discharging port 20 is
conveniently provided on the accommodation chamber 16.
[0032] Advantageously, the boiler 10 according to the invention
comprises filling and discharging ducts 21 for the tank 11.
[0033] The supporting means 12 conveniently comprise a panel 22
that can be associated with a wall and is provided with a shelf 23
for supporting the centrifugal pump 14 and with supporting brackets
24 for the tank 11.
[0034] The filling and discharging ducts 21 preferably comprise
[0035] a filling duct 25, which is preferably associated with the
filling port 19, [0036] a discharging duct 26, which is
conveniently associated with the discharging port 20.
[0037] Conveniently, the boiler 10 according to the invention
comprises [0038] a filling connector 27, supported by the shelf 23
and connected to the filling duct 25, and [0039] a discharging
connector 28, which is supported by the shelf 23 and is connected
to the discharging duct 26.
[0040] In practice it has been found that the invention achieves
the proposed aim and objects, providing a boiler, particularly for
humidifiers, which has, other characteristics being equal, a
smaller space occupation than currently known ones, by way of the
fact that it comprises a dedicated centrifugal pump arranged
coaxially to the orifice of the tank.
[0041] The disclosures in Italian Utility Model Application No.
PD2008U000006 from which this application claims priority are
incorporated herein by reference.
[0042] Where technical features mentioned in any claim are followed
by reference signs, those reference signs have been included for
the sole purpose of increasing the intelligibility of the claims
and accordingly such reference signs do not have any limiting
effect on the interpretation of each element identified by way of
example by such reference signs.
* * * * *