CN106457963A - Vehicle air conditioning device - Google Patents

Abstract

In an air conditioning case (12) that constitutes a vehicle air conditioning device (10), foot air-blowing ports (32a, 32b) respectively open onto both lateral walls (22a, 24a) that are substantially orthogonal to a ventilating surface (18a) of a heater core (18) through which air passes. A plate-like air blowing guide (40) is provided so as to face the foot air-blowing ports (32a, 32b). The air blowing guide (40) extends substantially parallel along the width direction of the air conditioning case (12) and projects at a predetermined height toward a first inner wall surface (36) of the air conditioning case (12) which is on the vehicle front side. Warm air that has passed through the heater core (18) strikes the air blowing guide (40) and is thereby guided to the width-direction outer side and introduced to the foot air blowing ports (32a, 32b).

Description

Air conditioner for vehicles

Technical field

The present invention relates to a kind of air conditioner for vehicles being arranged in vehicle, for passing through the air (temperature of air To be adjusted by heat exchanger) blow to the temperature to adjust vehicle compartment in vehicle car.

Background technology

So far, for example, disclose one kind in Japanese Laid-Open Patent 2008-296685 publication to be arranged in vehicle Air conditioner for vehicles, it allows inside and outside air be formed with the air-conditioning of current path in entering into internally via fan In shell, and in driving air mix door and by the cold air of the chiller cooling by evaporator type and by heater core pattern The heating of heating devices heat after air mixed with desired mixed proportion in air conditioner housing after, for example, make Mixed air passes through gassing pipe from the multiple openings being arranged on air conditioner housing, and blows in vehicle compartment, The regulation of temperature and humidity is executed whereby in the inside of vehicle car.

Content of the invention

Identical with above-mentioned air conditioner for vehicles, due to layout when air conditioner for vehicles is arranged in vehicle etc. Limit, such situation occurs：It is arranged on the side of air conditioner housing, this side for air being blown to the opening in vehicle car Face is parallel with the flow direction of the air flowing through current path.However, because the opening surface of opening is parallel with airflow direction, This air is difficult to flow to outside from outward opening, additionally simultaneously, is present in the dacker near opening and clashes into and stream The internal face of the vertical air conditioner housing in dynamic direction, creates convolution adverse current whereby, which results in the increase of gas-flow resistance.

The overall purpose of the present invention be provide a kind of air conditioner for vehicles, its can by opening by air from air-conditioning Shell is swimmingly directed to outside, can increase air mass flow by reducing gas-flow resistance in addition.

It is a feature of the present invention that a kind of air conditioner for vehicles, including：Air conditioner housing, the inside of this air conditioner housing includes The stream flowing through for air；Aerator, this aerator is arranged in the inside of air conditioner housing and is configured to make described air Flow in vehicle car；And heat exchanger, this heat exchanger is arranged in the inside of described air conditioner housing and is configured to Heat exchange is executed to described air, wherein：

In described air conditioner housing, opening is included on shell side face, this shell side is with respect to being arranged on described stream In described heat exchanger ventilating surface vertical；And

Guiding elements, this guiding elements is set and is configured to, towards described opening, hand over to have passed through described heat The air that blows of parallel operation turns to and the described air that blows is directed to described open side.

According to the present invention, in air conditioner housing, described opening is arranged on side in the width direction, this side with respect to The ventilating surface of described heat exchanger is substantially vertical, and further, and described guiding elements is with the pass faced by becoming with described opening It is and arranges, the described air stream having passed through described heat exchanger whereby is diverted and is directed into described open side.

Therefore, the flow direction (air passes through the heat exchange being carried out by heat exchanger) of air is made by guiding elements It is steered certainly described open side, air can swimmingly be blown out to outside, simultaneously in addition, clashing into guiding near opening The swirling flow of the air of component is suppressed.It is therefore prevented that producing the adverse current of air near opening, and by reducing air Gas-flow resistance when being blown out in the inside of vehicle car, can increase air mass flow (air capacity blowing).

Brief description

Fig. 1 is the global sections figure of air conditioner for vehicles according to the embodiment of the present invention.

Fig. 2 is the front view of the part omission of the air conditioner for vehicles shown in Fig. 1.

Fig. 3 shows the amplification sectional view of the vicinity of foot's air outlet of Fig. 1.

Fig. 4 shows the amplification stereogram near the foot's air outlet in the air conditioner for vehicles of Fig. 1.

Specific embodiment

As shown in figure 1, air conditioner for vehicles 10 includes：Air conditioner housing 12, it is made up of individual channel；Aerator 14, It is arranged in the inside of air conditioner housing 12；Vaporizer (for the heat exchanger of cooling) 16, for cooling air；Heater core 18 (heat exchanger, the heat exchangers for heating), for heating air；And windscreen mechanism 20, its operation, flow through with switching The air stream of individual channel.In the following description, the right side (side along arrow A of the air conditioner for vehicles 10 shown in Fig. 1 To) it is referred to as the front side of vehicle, and left side (in the direction of arrow B) is referred to as the rear side of vehicle.

As depicted in figs. 1 and 2, air conditioner housing 12 is made up of the such as first and second segmentation shells 22,24 and lower casing 26, First and second segmentation shells 22,24 substantially symmetric shapings；Lower casing 26 is attached under the first and second segmentation shells 22,24 Portion.First and second segmentation shells 22,24 are set, and can (direction of arrow C along along Fig. 2) split in the width direction simultaneously, Perpendicular to the longitudinal direction (direction of arrow A, B along along Fig. 1) of vehicle, divisional plane 12a (referring to Fig. 2) is formed between them width Border.On the other hand, lower casing 26 is arranged to cross the second segmentation shell 24 from the first segmentation shell 22.

Further, as shown in figure 1, air draft air outlet 28 and the defrosting top (edge towards air conditioner housing 12 for the air outlet 30 The direction of arrow D1) opening, air is blown out near the face of automotive occupant by air draft air outlet 28, and defrost air outlet 30 And air adjacent with air draft air outlet 28 is blown out near the front window of vehicle by defrosting air outlet 30.Air draft air outlet 28 Towards vehicle rear side (in the direction of arrow B) formed, and defrost air outlet 30 the front side (in the direction of arrow A) of vehicle with Air draft air outlet 28 is adjacent to and is formed.

And, as shown in Fig. 2 a pair of foot's air outlet (opening, hot opening) 32a, 32b are respectively along air conditioner housing 12 Width (direction of arrow C) is in side wall 22a, 24a upper shed of the first and second segmentation shells 22,24.As shown in Figure 1 to Figure 4 Shown, foot air outlet 32a, 32b are for example arranged in air conditioner housing 12, in the front side being located at vehicle with respect to aerator 14 (in the direction of arrow A) at position, and be vertically formed as elongated rectangle.

In addition, pipeline 34 (referring to Fig. 2) is connected to foot's air outlet from the outside of the first and second segmentation shells 22,24 32a, 32b, and pass through the air of pipeline 34 by the foot of the occupant towards vehicle compartment from foot air outlet 32a, 32b Nearby blow out.

Further, as shown in figure 3, in the vicinity of foot air outlet 32a, 32b, forming the first internal face 36, hang down in its edge Nogata extends at the position in the front side (in the direction of arrow A) of vehicle, and above it (along the direction of arrow D1), shape Become the second approximate horizontal internal face 38, its (direction of arrow A and B) extension longitudinally along the vehicle.More specifically, as shown in figure 3, Foot air outlet 32a, 32b with by the first and second internal faces 36,38 around corner become faced by relation and opening.

There is the air blowing guide (guiding elements) 40 of plate-like shape with the pass faced by becoming with foot's air outlet 32a, 32b It is and arrange.Air blowing guide 40 is that have constant or fixed thickness plate-like shape, and is arranged on first and second points Cut on the first internal face 36 of shell 22,24, internal face 36 is extends in the vertical direction in the front side of vehicle.

As shown in figure 3, air blowing guide 40 is for example, with respect to the first internal face 36 towards vehicle rear side (along arrow B Direction) substantially horizontally with predetermined altitude project, and along air conditioner housing 12 width (direction of arrow C) substantially Horizontally extending.

In addition, air blowing guide 40 is formed as linear, one end of air blowing guide 40 is located at the first segmentation shell Near 22 foot air outlet 32a, and the other end is located near the foot air outlet 32b of the second segmentation shell 24.

Further, air blowing guide 40 is arranged on approximate centre along the vertical direction of foot air outlet 32a, 32b In portion, and blow guide 40 project height be arranged to along foot air outlet 32a, 32b width medially Positioning.In other words, the far-end of air blowing guide 40 is formed in the aperture area of foot air outlet 32a, 32b substantially It is centrally located.

On the other hand, in the inside of air conditioner housing 12, aerator 14 is received within top (along the direction of arrow D1) Position at, and in vehicle to rear side (in the direction of arrow B).

Aerator 14 is for example substantially centrally arranged along the width of air conditioner housing 12, to ride on outer in the first segmentation Between shell and the second segmentation shell 24, and it is made up of driving source 42 and fan 44, driving source 42 is included by supply of electrical energy Motor being rotatably driven etc.；Fan 44 is connected to the drive shaft of driving source 42 and has multiple radiatings on its outer peripheral face Piece.

In addition, in air conditioner housing 12, helical flow path 46 is formed in the way of the outer circumferential side around aerator 14. When observing from the first segmentation shell 22 side, current path 46 is formed below aerator 14 in the way of spiraling counterclockwise, and And extend towards the front side (in the direction of arrow A) of vehicle, its passage sections area becomes larger simultaneously.

At the position in (along the direction of arrow D2) below current path 46, the first path 48 is formed at the interior of lower casing 26 In portion.First path 48 is in the way of gradually tilting towards front side (the in the direction of arrow A) (side along arrow D2 downwards of vehicle To) extend, and it is formed at the upstream side of vaporizer 16.In addition, under the driving effect of aerator 14, from outside suction After air is spiraled along current path 46 with spiral type, air flows through the first path 48, and (it is formed at air conditioner housing 12 Downside (along the direction of arrow D2) on), and be supplied to vaporizer 16.

Vaporizer 16 for example tilted at a predetermined angle by the short transverse with respect to air conditioner housing 12 and arrange so that its Upper ends are in the rear side (in the direction of arrow B) of vehicle, and its lower end is placed on the front side (side along arrow A of vehicle To).In addition, the upper end of vaporizer 16 is arranged on the lower section of aerator 14.In addition, in vaporizer 16, cold-producing medium is by multiple The pipe that do not illustrate and circulate, and flow through setting fin between the tubes by making air from the first path 48, air with Execute heat exchange between cold-producing medium, and cold air is supplied to the downstream of vaporizer 16.

Alternate path 50 is arranged in air conditioner housing 12, is located at the downstream of vaporizer 16.Constitute the sky of windscreen mechanism 20 Gas mixing windscreen 52 is arranged in alternate path 50, and the downstream in alternate path 50, and heater core 18 is arranged on vehicle Front side (in the direction of arrow A).In addition, alternate path 50 is connected with third path 54, third path 54 is in vehicle backward Side (in the direction of arrow B) extends to air draft air outlet 28, and alternate path 50 and heater core 18 or third path 54 it Between connected state switched by air mixing windscreen 52.

Third path 54 is formed at the position of the front side of vehicle (in the direction of arrow A) with respect to aerator 14, and Towards air draft air outlet 28, (along the direction of arrow D1) shows greatly straight-line extension upwards.

Heater core 18 is arranged in air conditioner housing 12, is located at the front side (in the direction of arrow A) of vehicle, and with steaming Send out device 16 identical mode, its upper end tilts at a predetermined angle towards the rear side (in the direction of arrow B) of vehicle, and its lower end court Tilt to the front side (in the direction of arrow A) of vehicle.Further, heater core 18 and vaporizer 16 are arranged substantially in parallel (accompanying alternate path 50 between them), and be set to prolong with alternate path 50 for ventilating surface 18a that bypasses air through Stretch the direction vertical.In other words, ventilating surface 18a of heater core 18 and first and second in air conditioner housing 12 are split The substantially vertical setting of side wall 22a, 24a of shell 22,24.

In addition, in heater core 18, the water after heating circulates by multiple pipes not illustrated, and by air from the Two paths 50 flow through setting fin between the tubes, execute heat exchange, after heating whereby between the water after air and heating Air be supplied to be formed at the fourth passage 56 in the downstream of heater core 18.

Windscreen mechanism 20 includes：Air mixing windscreen 52, it is arranged between vaporizer 16 and heater core 18；First cuts Change windscreen 58, it is used for switching the air blowing state between air draft air outlet 8 and defrosting air outlet 30；And second switching windscreen 60, it is arranged between third path 54 and fourth passage 56, for switching defrosting air outlet 30 and foot air outlet 32a, 32b Air blowing state.

Air mixing windscreen 52 is formed as such as bent plate shape shape, and the width setting along air conditioner housing 12.Empty The both sides of gas mixing windscreen 52 are guided along guide (not shown), and they are arranged on the internal face of air conditioner housing 12 On.In addition, rack gearing 62 is arranged on the inwall of air mixing windscreen 52 along the glide direction of air mixing windscreen 52 On face, and engage (engagement) with the little gear 66 of the axle 64 being pivotably supported in air conditioner housing 12.

Rotated under the driving effect of the actuator not illustrated by making axle 64, air mixing windscreen 52 can be along guiding Device slides in a generally horizontal direction, and in the inside of alternate path 50, air mixing windscreen 52 can from towards The position (referring to Fig. 1) of heater core 18 moves to the position towards third path 54.In addition, by mobile air mixing windscreen 52, adjust the air (cold air) having been cooled down by vaporizer 16 and the air being heated by heater core 18 (after heating Air) between mixing ratio, therefore mixed air blown out towards downstream.

First switching windscreen 58 is pivotally supported between air draft air outlet 28 and defrosting air outlet 30, and in non-example Rotated with predetermined angle around axle under the driving effect of the actuator showing, whereby third path 54 and air draft air outlet 28 and defrosting air-supply Connected state between one of mouth 30 is switched.

Second switching windscreen 60 is for example formed with sector crosssection, and its shaft component is pivotally supported in the first He respectively On second segmentation shell 22,24.In addition, second switching windscreen 60 under the driving effect of the actuator not illustrated around shaft component with Predetermined angular rotates, the connection between foot's air outlet 32a, 32b and one of fourth passage 56 and third path 54 whereby State is switched.

Air conditioner for vehicles 10 according to present embodiment is basically described above constructing.Then, vehicle will be described Operation and advantage with air-conditioning device 10.

First, by description execution cooling down operation to reduce the situation of the room temperature of vehicle car.By the occupant not illustrated In vehicle car, action bars is operated and selected cooling down operation, in response to the operation of action bars, driven the cause not illustrated Dynamic device, therefore air mixing windscreen 52 are sliding towards the front side (in the direction of arrow A) of vehicle under the guiding function of guide Dynamic preset distance.Therefore, as shown in figure 1, causing such state：Alternate path 50 and third path 54 are arranged to and air-conditioning The inside connection of shell 12.

Further, meanwhile, by based on the control signal blower 14 from the controller not illustrated, air is worn Cross the introducing port not illustrated and be inhaled in the inside of air conditioner housing 12, and in the side to spiral along current path 46 After formula flows downward, air passes through vaporizer 16, and it is executed with heat exchange, and air is cooled to predetermined temperature whereby.

In addition, air after the cooling period is after alternate path 50 flows upward to third path 54, the air after cooling leads to Cross and be fed in vehicle car through air draft air outlet 28, air draft air outlet 28 is under the switching effect of the first switching windscreen 58 It is opened.

Then, situations below will be described：Select heating operation, to make the room temperature of vehicle car rise, and warm air Blow out near the foot of the occupant in vehicle car.

First, select heating operation by operating the action bars that do not illustrate, air mixing windscreen 52 towards vehicle to Rear side (in the direction of arrow B) slip preset distance, and cause such state：Between alternate path 50 and third path 54 Connection be cut off.In addition, by from aerator 14 blow out and pass through vaporizer 16 and the air after cooled cooling from Alternate path 50 flows through and passes through heater core 18, and therefore, air is heated to predetermined temperature, and flows up, simultaneously Through fourth passage 56, hereafter, the air after heating passes through pipeline 34 from foot air outlet 32a, 32b, and is supplied to car Near the foot of occupant in compartment.

Now, after the air flowing through fourth passage 56 has already passed through the heater core 18 of air conditioner housing 12, air hangs down Directly flow up, and because its flow direction is substantially vertical with the opening direction of foot air outlet 32a, 32b, such as Fig. 3 Shown, a part for air clashes into the second internal face 38, and not successfully flows to foot air outlet 32a, 32b, whereby clockwise The convolution vortex pointed to occurs near foot air outlet 32a, 32b.When this partial air of experience convolution vortex is along first During internal face 36 flowing, the spiraling further by being limited against (contact) air blowing guide 40 of air, and pass through Flow along air blowing guide 40, air is respectively directed to foot air outlet 32a, 32b side, and they are arranged in the width direction In both sides.

More specifically, drawing with air blowing in warm air (it has already passed through heater core 18 and rises in fourth passage 56) Lead device 40 to compare, in the case of more flowing to the rear side (in the direction of arrow B) of vehicle, warm air passes through against being arranged on The second internal face 38 above foot air outlet 32a, 32b and spiral along clockwise direction, and flow to the first internal face 36 side, It is located at the front side (in the direction of arrow A) of vehicle with respect to foot air outlet 32a, 32b.In addition, warm air is with respect to air blowing Guide 40 is abutted from top, and air blowing guide 40 is arranged on the first internal face 36 and towards foot's air outlet 32a, 32b side projects, and warm air is forced to be directed to foot along the bearing of trend (in the width direction) of air blowing guide 40 whereby Portion air outlet 32a, 32b side.

On the other hand, the warm air having risen upwards below air blowing guide 40 is with respect to air blowing guide 40 Abut from below, warm air is forced to be directed to foot and along the bearing of trend (in the width direction) of air blowing guide 40 whereby Air port 32a, 32b side.

In the above described manner, according to present embodiment, substantially arrange in the width direction in air conditioner housing 12 in aerator 14 In the full centre type air conditioner for vehicles 10 at center, side wall 22a, 24a on the width of air conditioner housing 12 (with plus Ventilating surface 18a of hot device core 18 is substantially vertical) above include foot air outlet 32a, 32b, by their air in vehicle car The foot of occupant near blow out, and guide 40 of blowing is set with the relation faced by being become with foot air outlet 32a, 32b Put, and have passed through the air of heater core 18 and turn to, and direct air into foot air outlet 32a, 32b side.

Due to this feature, by air blowing guide 40 being clashed into by the warm air that heater core 18 heats, its air blowing Direction can be diverted into foot air outlet 32a, 32b side, and is successfully directed to pipeline 34, simultaneously furthermore it is possible to press down Heating air is near foot air outlet 32a, 32b with the vortex flow that circles round.It is therefore prevented that air foot air outlet 32a, Adverse current, and gas-flow resistance when being blown out in the inside of vehicle car, Ke Yizeng is produced by reduction warm air near 32b Plus air mass flow (air capacity blowing).

Therefore, the driving load for blower 14 will not increase, and can improve air conditioner for vehicles 10 Air blowing efficiency.

Further, (direction of arrow C) is arranged in whole region air blowing guide 40 in the width direction, so that from The foot air outlet 32a constituting the first segmentation shell 22 of air conditioner housing 12 extends to foot's air outlet of the second segmentation shell 24 32b.Accordingly it is possible to prevent the warm air flowing about in foot air outlet 32a, 32b produces in the width direction in whole region Raw convolution vortex, and prevent from producing adverse current in whole region in the width direction, can reliably reduce by this inverse whereby The gas-flow resistance that stream causes.

Further, air blowing guide 40 is formed as plate-like shape, and it is with respect to the first and second segmentation shells 22,24 Divisional plane 12a and the opening surface of foot air outlet 32a, 32b extend generally vertically, and project from the first internal face 36, with Just hinder have already passed through heater core 18 to blow warm air.Therefore, meet in air blowing guide 40 and warm air is guided To foot air outlet 32a, 32b side guiding function while, air blowing guide 40 can form (that is, mould) first He It is integrally formed during the second segmentation shell 22,24, thus make it easy to manufacture.

Further, aerator 14 and vaporizer 16 and heater core 18 along lateral direction of car be arranged on same position and It is arranged on vehicle in the complete centre type air conditioner for vehicles 10 of rear side (in the direction of arrow B), by guiding blowing Device 40 and foot air outlet 32a, 32b with faced by relation setting, when warm air is from foot air outlet 32a, 32b (their edges The width air conditioner housing 12 is in side 22a, 24a upper shed) blowout when be preferred.

Further, in the state of air conditioner for vehicles 10 is arranged in vehicle, heater core 18 is after vehicle In front of Fang Chaoxiang, arrange in the way of downward (along the direction of arrow D2) tilts, foot's air outlet 32a, 32b are arranged on and add in addition The top (along the direction of arrow D1) of hot device core 18, and from aerator 14 blow air from its lower surface to upper table surface current Cross heater core 18, passing through heater core 18 with blowing smooth air and flowing to foot from aerator 14 can be made whereby Near air outlet 32a, 32b.

And, the downside end contact of the heater core 18 of inclination is located at the front side (side along arrow A of air conditioner housing 12 To) the first internal face 36, foot's air outlet 32a, 32b are arranged near the first internal face 36 in addition.Thus, have already passed through and add The blowing air and can be directed into foot air outlet 32a, 32b along the first internal face 36 of hot device core 18.Therefore, by plus The blowing air and can pass through foot air outlet 32a, 32b of hot device core 18 heating, and more preferably by the foot towards occupant Guiding.

Further, by vaporizer 16 being arranged on the upstream side of heater core 18, and by vaporizer 16 to tilt Mode is abreast arranged with heater core 18, and the air that blows from aerator 14 can be swimmingly through vaporizer 16 and heating Device core 18 and be directed into foot air outlet 32a, 32b.

Vehicle according to the invention air-conditioning device is not limited to above-mentioned embodiment, and certainly wherein can adopt various Add or modification structure, without departing from the essence spirit of the present invention.

Claims (8)

1. a kind of air conditioner for vehicles, this air conditioner for vehicles includes：Air conditioner housing (12), this air conditioner housing (12) interior Portion includes the stream (48,50,54,56) flowing through for air；Aerator (14), this aerator (14) is arranged on described air conditioner housing (12) inside and be configured to blow to described air in vehicle car；And heat exchanger (18), this heat exchanger (18) it is arranged on the inside of described air conditioner housing (12) and be configured to execute heat exchange to described air, wherein：

In described air conditioner housing (12), shell side face includes opening (32a, 32b), described shell side is with respect to setting The ventilating surface (18a) of the described heat exchanger (18) in described stream (56) is vertical；And

Guiding elements (40), this guiding elements (40) is set and is configured to towards described opening (32a, 32b), so that The air that blows through described heat exchanger (18) turns to and by the described air that blows to described opening (32a, 32b) that side Guiding.

2. air conditioner for vehicles according to claim 1, wherein, described guiding elements (40) is arranged on described opening Near (32a, 32b).

3. air conditioner for vehicles according to claim 1 and 2, wherein, described guiding elements (40) is in described stream (56) it is arranged in the whole region of width in.

4. air conditioner for vehicles according to any one of claim 1 to 3, wherein, described air conditioner housing (12) is with energy Enough modes using divisional plane segmentation are formed, described divisional plane be arranged in described stream (56) in the width direction substantially in At the heart；And described guiding elements (40) is the opening surface and described air conditioner housing (12) with respect to described opening (32a, 32b) Described divisional plane extend substantially vertically and the internal face (36) from described air conditioner housing (12) upright to hinder The tabular component blowing air through described heat exchanger (18).

5. air conditioner for vehicles according to any one of claim 1 to 4, wherein, described aerator (14) is in vehicle Be arranged on horizontal direction with described heat exchanger (18) identical position at, and more lean on compared with described heat exchanger (18) The rear of vehicle, and blow described in foot's guiding of the occupant that is directed towards in described vehicle car of described opening (32a, 32b) The hot opening of air.

6. air conditioner for vehicles according to claim 5, wherein, is arranged in vehicle in described air conditioner for vehicles In the state of, described heat exchanger (18) is to arrange in the way of the rear of described vehicle is downward-sloping towards front, and institute State the top that hot opening is arranged on described heat exchanger (18), and blow air from described heat from described aerator (14) The lower surface of exchanger (18) flows through described heat exchanger (18) to upper surface.

7. air conditioner for vehicles according to claim 6, wherein, the downside end contact position of described heat exchanger (18) In the internal face (36) of the front side of described air conditioner housing (12), and described hot opening is arranged near described internal face (36).

8. air conditioner for vehicles according to claim 7, wherein, described heat exchanger (18) is the heat friendship for heating Parallel operation, is provided with the heat exchanger (16) for cooling in the upstream side of the described heat exchanger for heating, and for cold But described heat exchanger (16) is abreast arranged with the described heat exchanger for heating in an inclined manner.