DEVICE FOR HEATING A LIQUID AND/OR FOR WARMING AIR, AND SIDE CHANNEL BLOWER

Abstract

Example embodiments relate to a device for heating a liquid and/or warming air, including a burner device and an air conveying device. The air conveying device conveys combustion air to the burner device. The air conveying device has a carrier housing, a movable fan wheel, an air inlet, and an air outlet. The carrier housing has a conveying channel which is connected to the air inlet and the air outlet. The fan wheel is arranged so as to be rotatable about a longitudinal axis of the air conveying device and has a blade structure. The air outlet is arranged in a central area of the air conveying device and extends through the fan wheel. The invention further relates to a side channel blower.

Claims

1. A device for heating a liquid and/or for warming air, comprising: a burner device and an air conveying device, wherein the burner device generates thermal energy by the combustion of a fuel-air mixture in a combustion chamber, wherein the air conveying device conveys combustion air to the burner device, wherein the air conveying device has a carrier housing, a movable fan wheel, an air inlet, and an air outlet, wherein the carrier housing has a conveying channel which is connected to the air inlet and the air outlet, wherein the fan wheel is arranged so as to be rotatable about a longitudinal axis of the air conveying device and has a blade structure, wherein the air outlet is arranged in a central area of the air conveying device, and wherein the air outlet extends through the fan wheel.

2. The device according to claim 1, wherein the air conveying device is configured as a side channel blower.

3. The device according to claim 1, wherein the air inlet is arranged at a lateral area of the air conveying device.

4. The device according to claim 1, wherein the air outlet extends through the carrier housing.

5. A side channel blower having a carrier housing, a movable fan wheel, an air inlet, and an air outlet, wherein the carrier housing has a conveying channel which is connected to the air inlet and the air outlet, wherein the fan wheel is arranged so as to be rotatable about a longitudinal axis of the air conveying device and has a blade structure, wherein the air inlet is arranged at a lateral area of the air conveying device, wherein the air outlet is arranged in a central area of the air conveying device, and wherein the air outlet extends through the fan wheel.

6. The side channel blower according to claim 5, wherein the air outlet extends through the carrier housing.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0015] Specifically, there are numerous possibilities of designing and further developing the device according to the invention and the side channel blower. To this end, reference is made, on the one hand, to the claims subordinate to the independent claims, and, on the other hand, to the description below of example embodiments in conjunction with the drawing, in which:

[0016] FIG. 1 shows a schematic representation of part of the device,

[0017] FIG. 2 shows a spatial representation of the air conveying device,

[0018] FIG. 3 shows an exploded view of the air conveying device of FIG. 2,

[0019] FIG. 4 shows a view onto the exterior side of the fan wheel of FIG. 2,

[0020] FIG. 5 shows a view onto the interior side of the fan wheel of FIG. 2,

[0021] FIG. 6 shows the exploded view of FIG. 3 from the opposite viewing direction, and

[0022] FIG. 7 shows a view onto the carrier housing 20.

DETAILED DESCRIPTION

[0023] For the sake of clarity, FIG. 1 only shows the part of the device for heating a liquid and/or warming air which is composed of the burner device and the air conveying device. The burner device 1 has a combustion chamber 10 in which a fuel-air mixture is burnt. The thermal energy thus released is transferred to the liquid or air via a heat exchanger (not shown here). The air is preferably the room air in a caravan or mobile home. The so-called combustion air required for combustion is introduced into the combustion chamber 10 via the air conveying device 2. Depending on the configuration, the air conveying device 2 conveys only the combustion air or already the fuel-air mixture into the combustion chamber 10. Furthermore, a conveying device (not shown here) is also provided which supplies the fuel, for example burnable gas in the form of propane and/or butane or Diesel/gasoline fuel converted into the gaseous state. It can be seen that the air conveying device 2 is located axially upstream of the burner device 1 and thus also upstream of the combustion chamber 10.

[0024] FIG. 2 and FIG. 3 show an air conveying device 2. FIG. 4 shows the exterior side of the fan wheel 21. The three illustrations are described jointly.

[0025] The air conveying device 2 is designed as side channel compressor. A fan wheel 21 is arranged so as to be rotatable about the longitudinal axis 25, wherein the rotations are caused by the motor 29. An axis of rotation of the motor 29 extends through the carrier housing 20 and through a central area 27 of the fan wheel 21. The fan wheel 21 and the carrier housing 20 each have an internal structure which is illustrated in the following illustrations FIG. 5 to FIG. 7. The air to be conveyed through the air conveying device 2 enters (if necessary as a part of a fuel-air mixture) the space located between the carrier housing 20 and the fan wheel 21 through the air inlet 22 and leaves it through the air outlet 23. It can be seen that the air inlet 22 is located in the lateral area 28 and that the air outlet 23 is located in the central area 27 of the air conveying device 2. The air outlet 23 and in addition a carrier structure via which the fan wheel 21 is fastened in the air conveying device 2 and the motor 29 transmits the torque to the fan wheel 21 are located in the center of the fan wheel 21. In the illustrated configuration, five further blade elements are also provided in the air outlet 23. The number of these blade elements is not limited to five, there may also be more or fewer of these blade elements.

[0026] FIG. 5 shows the blade structure 26 of the fan wheel 21 through which the air or the fuel-mixture is compressed and moved to the central air outlet 23.

[0027] The interior side of the fan wheel 21 along with the blade structure 26 can also be seen in the illustration of FIG. 6. It is clearly visible that the motor 29 projects with an axis of rotation along the longitudinal axis 25 of the air conveying device 2 through the carrier housing 20 having the lateral air inlet 22 and through the fan wheel 21 having the central air outlet 23.

[0028] FIG. 7 shows a view onto the interior side of the carrier housing 20. The conveying channel 24 can be seen, which extends from the air inlet 22 on the side 28 to the center 27 of the carrier housing 20 and opens there. The air or the fuel-air mixture is compressed by the blade structure of the fan wheel and the rotation thereof.

[0029] While the disclosure has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the essential scope thereof. While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not Intended to be limiting, with the true scope and spirit being indicated by the following claims.

LIST OF REFERENCE NUMERALS

[0030] 1 Burner device [0031] 2 Air conveying device [0032] 10 Combustion chamber [0033] 20 Carrier housing [0034] 21 Fan wheel [0035] 22 Air inlet [0036] 23 Air outlet [0037] 24 Conveying channel [0038] 25 Longitudinal axis [0039] 26 Blade structure [0040] 27 Central area [0041] 28 Lateral area [0042] 29 Motor