FI127427B - Combustion engine arrangement and vechicle - Google Patents

Combustion engine arrangement and vechicle Download PDF

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Publication number
FI127427B
FI127427B FI20165197A FI20165197A FI127427B FI 127427 B FI127427 B FI 127427B FI 20165197 A FI20165197 A FI 20165197A FI 20165197 A FI20165197 A FI 20165197A FI 127427 B FI127427 B FI 127427B
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FI
Finland
Prior art keywords
air
timing belt
combustion engine
belt housing
internal combustion
Prior art date
Application number
FI20165197A
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Finnish (fi)
Swedish (sv)
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FI20165197A (en
Inventor
Jorma Perander
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Jorma Perander
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to FI20165197A priority Critical patent/FI127427B/en
Publication of FI20165197A publication Critical patent/FI20165197A/en
Application granted granted Critical
Publication of FI127427B publication Critical patent/FI127427B/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
    • F16M1/02—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines
    • F16M1/026—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines for housing movable engine or machine parts other than crankshafts, e.g. valve-gear housings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The disclosure relates to a combustion engine arrangement (1) comprising a combustion engine (10) comprising a crank shaft (11), a cam shaft (12) and a timing belt (13) connected to the crank shaft (11) and to the cam shaft (12) for transmitting power from the crank shaft (11) to the cam shaft (12), and an air blower (20) for blowing air, wherein the timing belt (13) is arranged in a timing belt housing (14), the timing belt housing (14) comprises an air inlet (16) for leading air into the timing belt housing (14), and, timing belt housing (14) comprises an air outlet (15) for leading air out of the timing belt housing (14), the arrangement (1) comprises an air channel (40) connected to the air blower (20) and arranged to lead air to the air inlet (16), and the air blower (20) is arranged to generate an air flow from the air inlet (16) to the air outlet (15).

Description

COMBUSTION ENGINE ARRANGEMENT AND VECHICLE
FIELD OF THE DISCLOSURE
The present disclosure relates to combustion engines, and particularly to the timing belt arrangement of combustion engines.
BACKGROUND OF THE DISCLOSURE
Combustion engine comprises a timing arrangement for transmitting power from the crank shaft of the combustion engine to the cam shaft for operating valves of the engine. Usually the power is transmitted in the timing means by a timing belt, which is a teethed elastic belt reinforced with textile or carbon fibre. The timing belt is usually arranged in a dry space, which is in connection with the ambient air by a partly open housing, i.e. a housing provided with openings. This allows cooling of the timing belt by the ambient air in the engine room. This kind of timing arrangement is still in wide use, because it is cheap to manufacture and light in weight.
Document JP H05149133 A discloses a cooling device of a toothed belt capable of preventing shortening of the life span of the toothed belt in the movable valve system drive mechanism of an engine for an automobile. This is a device furnished on an engine for an automobile and the device constituted by storing a movable valve system drive mechanism constituted of a toothed pulley provided on an end part of a crank shaft, a toothed pulley provided on an end part of a cam shaft and a toothed belt suspended between the toothed pulleys in a case. Additionally, a supply port to introduce air from an air conditioning fan installed on the automobile into the case is provided on the case, while an exhaust port to release a smaller amount of air than the amount of air to the supply port outside of the case is provided on the case.
Document discloses US 4878467 in a single- or multiple-part protective cover for traction drives (for instance, chain, belt, toothed belt drives or the like), in particular for vehicle engines, vehicle drives, machines or the like, a protection of the traction drive from impairment by excessive heating during operation and from the entry of dirt particles, rainwater, snow and other foreign bodies is attained in that at least one coolant overpressure inlet opening (2) is embodied in the walls of the protective cover (1) and communicates with at least one source emitting the pre-filtered coolant at overpressure.
As a result, a gaseous coolant such as air or the like can be introduced, either permanently or temporarily, by means of a source embodied as a turbo compressor or pump or relative wind intercepting device, into the interior of the protective cover, as a result of which, first, sufficient cooling of the traction drive and, second, the formation of an overpressure in the
20165197 prh 17-11-2017 interior of the protective cover are effected, the latter preventing the entry of any dirt particles or the like. By means of the invention, the functional capacity of the traction drive is improved substantially, and the service life of the individual components, and in particular of the traction means, is substantially increased.
Document GB 2317645 discloses that the camshaft is driven from the crankshaft by a toothed-belt which is enclosed by a housing. The hub of the crankshaft belt pulley has airconveying blades which cause cooling air to flow upwardly through the housing to a thermostatically-controlled outlet valve which is closed until a preset temperature is reached. The crankshaft belt pulley may be covered by a suction hood containing an air filter. In a modification, filtered air is supplied to the housing from a secondary pump, obviating the need for the blades and filter.
Document US 5735338 discloses an air conditioning unit for a vehicle is inserted between an inlet conduit, supplied with fresh air and/or recycled air, and the passenger space of the vehicle. The unit comprises a fan which supplies two conduits placed parallel, of which one permanently heats the air by contact with a heating component, the heated air being dispatched either into the passenger space, or towards the exterior with the aid of a valve. The other conduit is opened or closed by a valve, according to whether one wishes to cool or to heat the passenger space. The heating component is thus permanently cooled, both when the passenger space is heated and when it is cooled.
A problem with such a timing arrangement is that it requires service due to tendency of the timing belt to wear out. Breaking of the timing belt results often in large engine damage and therefore the timing belt needs to be replaced before it is broken. Using the combustion engine in dusty conditions reduces the life of the timing belt, which requires replacing the belt more often or increases the risk of the belt breaking. This is because of the partly open space dust can affect the belt and the gearing of the timing arrangement.
BRIEF DESCRIPTION OF THE DISCLOSURE
An object of the present disclosure is to provide a combustion engine arrangement so as to solve the above problems.
The objects of the disclosure are achieved by a combustion engine arrangement which is characterized by what is stated in the independent claims. The preferred embodiments of the disclosure are disclosed in the dependent claims.
The disclosure is based on the idea of providing the partly open timing belt space with an air flow, which flows out of the openings of the timing belt housing and keeps dust out of the timing belt space.
20165197 prh 17-11-2017
An advantage of combustion engine arrangement of the disclosure is that sudden timing belt damages, and thus sudden engine damages, are reduced and the change interval of the timing belt is increased due to more clean conditions in the timing belt space.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following the disclosure will be described in greater detail by means of preferred embodiments with reference to the accompanying drawings, in which
Figure 1 is a schematic side view of a combustion engine arrangement according to an embodiment;
Figure 2 is a schematic side view of a combustion engine arrangement according to an embodiment; and
Figure 3 is a schematic side view of a combustion engine arrangement according to an embodiment.
DETAILED DESCRIPTION OF THE DISCLOSURE
The disclosure relates to a combustion engine arrangement 1. The combustion engine arrangement comprises a combustion engine 10, such as a petrol engine or a diesel engine. The combustion engine comprises a crank shaft 11, a cam shaft 12 and a timing belt 13 connected to the crank shaft 11 and to the cam shaft 12 for transmitting power from the crank shaft 11 to the cam shaft 12. The timing belt is typically a teethed belt made of elastic material arranged to interact with gears arranged at the end of the crank shaft and the cam shaft. The timing belt 13 is arranged inside a timing belt housing 14, preferably for at least partly covering the timing belt 13. The timing belt housing 14 may also be known as a front cover or a timing cover. The timing belt housing 14 is arranged to at least partly enclose the timing belt 13.
The timing belt housing 14 comprises an air inlet 16 for leading air into the timing belt housing 14. The timing belt housing 14 comprises an air outlet 15 for leading air out of the timing belt housing 14. Preferably there is at least one air outlet 15 in the timing belt housing 14. More preferably there are a plurality of air outlets 15. The air outlet 15 allows air to flow from the air channel 40 through the timing belt housing 14. This air flow increases change of the temperature of the timing belt 13 towards the temperature of the air.
The combustion engine arrangement 1 comprises an air blower 20 for blowing air. For example the air blower 20 is a fan.
The combustion engine arrangement 1 comprises an air channel 40 connected to the air blower 20 and arranged to lead air to the air inlet 16. For example the air blower 20 is
20165197 prh 17-11-2017 arranged at one end of the air channel 40 and the air inlet 16 is arranged at the opposite end of the air channel 40. Alternatively the air blower 20 is connected directly to the air inlet 16. In this case the air channel 40 is preferably used to collect ambient air, for example from an engine room of the combustion engine arrangement 1. According to an embodiment the air blower 20 is arranged inside the timing belt housing 14.
The air blower 20 is arranged to generate an air flow from the air inlet 16 to the air outlet
15. More precisely the air blower 20 is arranged to generate an air flow from the air inlet 16 to each of the air outlets 15, if the timing belt housing 14 comprises a plurality of air outlets 15. In other words air is arranged to flow out of the air outlet 15 or the plurality of air outlets 15, when the air flow is generated by the air blower 20. Preferably the air blower 20 is arranged to generate positive air pressure to the inside of the timing belt housing 14 compared to the air pressure outside the timing belt housing 14.
The mechanical properties of the timing belt material deteriorate in extreme temperatures. Preferred storage temperature for some vulcanised rubber materials is 15 to 20 °C and preferred usage temperature is -40 to 130 °C. The combustion engine arrangement 1 comprises an air temperature adjusting means 31 for adjusting temperature of air blown by the air blower 20, wherein the air temperature adjusting means 31 is arranged to adjust the temperature of air led to the timing belt housing 14 to a predetermined temperature range. This allows adjusting the temperature inside the timing belt housing 14 for maintaining the conditions in the timing belt housing 14 more optimal for the timing belt material. Therefore the combustion engine 10 can be used in extreme temperatures, for example at the extreme ends of -50 °C to 140 °C, without the need for reducing the time interval for replacing the timing belt 13.
According to an embodiment the air temperature adjusting means 31 comprises a cooler
32. The cooler 32 allows cooling of air if the temperature of ambient air is higher than the predetermined temperature range. According to an embodiment the air temperature adjusting means 31 comprises a heater 33. The heater 33 allows heating of air if the temperature of ambient air is lower than the predetermined temperature range. According to an embodiment the air temperature adjusting means 31 comprises an air conditioning device 34. For example the air conditioning device 34 comprises a cooler 32 and a heater 33.
The arrangement comprises a control device 35 and an air temperature measuring device 36 connected to the control device 35. According to an embodiment the control device 35 is connected to the air temperature adjusting means 31, wherein the control device 35 is arranged to control operation of the air temperature adjusting means 31 in response to the
20165197 prh 17-11-2017 measured value from the air temperature measuring device 36. For example the air temperature adjusting means 31, the control device 35 and the air temperature measuring device 36 are comprised in the air conditioning device 34.
According to an embodiment the control device 35 is connected to the air blower 20, 5 wherein the control device 35 is arranged to control operation of the air blower 20 in response to the measured value from the air temperature measuring device 36.
According to an embodiment the air temperature measuring device 36 is arranged to measure the temperature of air blown by the air blower 20.
The air temperature measuring device 36 is arranged to measure the temperature of air 10 inside the timing belt housing 14.
According to an embodiment the air temperature adjusting means 31 is arranged to adjust the temperature of air led to the timing belt housing 14 to 5 to 30 °C, preferably to 10 to 25 °C, more preferably to 18 to 23 °C, and most preferably to 20 to 23 °C.
According to an embodiment the combustion engine arrangement comprises a filter 37 15 arranged to filter air before it is led to the air inlet 16. The filter 37 ensures that as clean air as possible is lead to the timing belt housing 14. For example the filter 37 is arranged at one end of the air channel 40 and the air blower 20 is arranged at an opposite end of the air channel 40. The filter 37 may also be connected directly to the air blower 20. According to an embodiment the filter 37 is arranged between the air blower 20 and the air inlet 16.
The filter 37 may not be needed if sufficiently clean air can otherwise be provided.
According to an embodiment the air channel 40 comprises a one-way valve 41 for allowing air flow from the air channel 40 to the air inlet 16 while preventing air flow from the timing belt housing 14 via the air channel 40. The valve 41 allows traditional cooling of the timing belt 13 via the air outlet 15, or plurality of air outlets 15, if there is no air flow from the air channel 40 for example due to malfunction, without the fear of dust entering the air channel 40.
The disclosure relates also to a vehicle 2 comprising a cabin 50 and a combustion engine arrangement 1 as described above.
According to an embodiment the air blower 20 is arranged to feed air from the cabin 50 to 30 the timing belt housing 14. Because the temperature of the air in the cabin 50 is usually adjusted to a preferred range, the air of the cabin 50 could be used for pressurizing the timing belt housing 14. In other words air used for pressurizing the timing belt housing 14 is collected from the cabin 50. In this case the filter 37 may not be needed because the risk of excess dust existing in the cabin 50 is usually minimal. In other words the cabin 50 may act as the filter 37. Normally the air led to the inside of the cabin 50 is also filtered by a fresh air filter of the vehicle 2. In this case the fresh air filter of the vehicle 2 acts as the filter 37.
According to an embodiment the air temperature adjusting means 31 is arranged to adjust the air temperature inside the cabin 50. In this case the air temperature measuring device 36 is arranged to measure the temperature of air in the cabin 50. In other words the air temperature adjusting means 31, the control device 35 and the air temperature measuring device 36 are comprised in the air conditioning device 34 of the vehicle 2.
In other words the air for pressurizing the timing belt housing 14 is lead from the air conditioning device 34 of the vehicle 2 to the cabin 50 and from the cabin to the timing belt housing 14 via the air channel 40, or the air is lead from the air conditioning device 34 directly to the timing belt housing 14. In the latter arrangement there is usually a separate air channel (not shown in the figures) for leading air from the air conditioning device 34 to the cabin 50.
The air conditioning device 34 may comprise a second air blower. The second air blower is used to blow air to the cabin 50. According to an embodiment air is lead from the second air blower 38 to the air blower 20. This allows separate adjustment of the air flow to the cabin 50 and to the timing belt housing 14. For example the vehicle 2 comprises a second air channel 60 arranged to lead air from the second air blower 38 to the air blower 20.

Claims (11)

PATENTTIVAATIMUKSET 1. Polttomoottorijärjestely (1), joka käsittää polttomoottorin (10), joka käsittää kampiakselin (11), nokka-akselin (12) ja kampiakseliin (11) ja nokka-akseliin (12) yhdistetyn jakohihnan (13) voimanAn internal combustion engine arrangement (1) comprising an internal combustion engine (10) comprising a crankshaft (11), a camshaft (12), and a drive belt (13) connected to a crankshaft (11) and a camshaft (12). 5 välittämiseksi kampiakselilta (11) nokka-akselille (12), ja ilmapuhaltimen (20) ilman puhaltamiseksi, jolloin jakohihna (13) on järjestetty jakohihnakoteloon (14), jakohihnakotelo (14) käsittää ilman sisääntulon (16) ilman johtamiseksi5 for transmitting from the crankshaft (11) to the camshaft (12), and the air blower (20) for blowing air, the timing belt (13) being arranged in the timing belt housing (14), the timing belt housing (14) comprising an air inlet (16) 10 jakohihnakotelon (14) sisään, jakohihnakotelo (14) käsittää ilman ulostulon (15) ilman johtamiseksi ulos jakohihnakotelosta (14), järjestely (1) käsittää ilmakanavan (40), joka on yhdistetty ilmapuhaltimeen (20) ja joka on järjestetty johtamaan ilmaa ilman sisääntuloon (16),10 inside the timing belt housing (14), the timing belt housing (14) comprises an air outlet (15) for venting air out of the timing belt housing (14), the arrangement (1) comprising an air duct (40) connected to an air blower (20) (16) 15 ilmapuhallin (20) on järjestetty synnyttämään ilmavirta ilman sisääntulosta (16) ilman ulostuloon (15), järjestely käsittää ilman lämpötilan säätövälineet (31) ilmapuhaltimen (20) puhaltaman ilman lämpötilan säätämiseksi, jolloin ilman lämpötilan säätövälineet (31) on järjestetty säätämään jakohihnakoteloon (14) johdetun ilman lämpötila ennalta määrätylleThe air blower (20) is arranged to generate an air flow from the air inlet (16) to the air outlet (15), the arrangement comprising air temperature control means (31) for controlling the air temperature blown by the air blower (20). ) the temperature of the supplied air to a predetermined 20 lämpötila-alueelle, ja järjestely käsittää ohjainlaitteen (35), joka on yhdistetty ilman lämpötilan säätövälineisiin (31), ja ilman lämpötilan mittauslaitteen (36), joka on yhdistetty ohjainlaitteeseen (35), jolloin ohjainlaite (35) on järjestetty ohjaamaan ilman lämpötilan säätövälineiden (31) toimintaa vasteena mitatulle arvolle ilman lämpötilan20, and the arrangement comprises a control device (35) connected to the air temperature control means (31) and an air temperature measuring device (36) connected to the control device (35), the control device (35) being arranged to control the air temperature control means. (31) operation in response to the measured value of air temperature 25 mittauslaitteelta (36), tunnettu siitä, että ilman lämpötilan mittauslaite (36) on järjestetty mittaamaan jakohihnakotelon (14) sisällä olevan ilman lämpötilaa.25, characterized in that the air temperature measuring device (36) is arranged to measure the temperature of the air inside the timing belt housing (14). 2. Vaatimuksen 1 mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilmanInternal combustion engine arrangement (1) according to claim 1, characterized in that the air 30 lämpötilan säätövälineet (31) käsittävät jäähdyttimen (32).The temperature control means (31) comprises a radiator (32). 3. Vaatimuksen 1 tai 2 mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilman lämpötilan säätövälineet (31) käsittävät lämmittimen (33).Internal combustion engine arrangement (1) according to claim 1 or 2, characterized in that the air temperature control means (31) comprises a heater (33). 4. Jonkin vaatimuksista 1-3 mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilman lämpötilan säätövälineet (31) käsittävät ilmastointilaitteen (34).Internal combustion engine arrangement (1) according to one of Claims 1 to 3, characterized in that the air temperature control means (31) comprises an air conditioning device (34). 5. Jonkin edellisistä vaatimuksista mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilman lämpötilan mittauslaite (36) on järjestetty mittaamaan ilmapuhaltimen (20)Internal combustion engine arrangement (1) according to one of the preceding claims, characterized in that the air temperature measuring device (36) is arranged to measure the air blower (20). 5 puhaltaman ilman lämpötilaa.5 the temperature of the air blown. 6. Jonkin edellisistä vaatimuksista mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilman lämpötilan säätövälineet (31) on järjestetty säätämään jakohihnakoteloon (14) johdetun ilman lämpötilan lämpötilaan 5-30 °C, edullisesti 10-25 °C, edullisemmin 18-23 °C ja edullisimmin 20-23 °C.Internal combustion engine arrangement (1) according to one of the preceding claims, characterized in that the air temperature control means (31) are arranged to adjust the temperature of the air supplied to the timing belt housing (14) to 5-30 ° C, preferably 10-25 ° C, more preferably 18-23 °. C, and most preferably 20-23 ° C. 1010 7. Jonkin edellisistä vaatimuksista mukainen polttomoottorijärjestely (1), tunnettu siitä, että polttomoottorijärjestely käsittää suodattimen (37), joka on järjestetty suodattamaan ilmaa ennen kuin se johdetaan sisääntuloon (16).Internal combustion engine arrangement (1) according to one of the preceding claims, characterized in that the internal combustion engine arrangement comprises a filter (37) arranged to filter the air before it is introduced to the inlet (16). 8. Jonkin edellisistä vaatimuksista mukainen polttomoottorijärjestely (1), tunnettu siitä, että ilmakanava (40) käsittää yksisuuntaventtiilin (41) ilman virtaamisen sallimiseksiInternal combustion engine arrangement (1) according to one of the preceding claims, characterized in that the air channel (40) comprises a non-return valve (41) to allow air to flow. 15 ilmakanavasta (40) jakohihnakoteloon (14) estäen samanaikaisesti ilman virtaamisen jakohihnakotelosta (14) ilmakanavaa (40) pitkin.15 air ducts (40) to the timing belt housing (14) while simultaneously preventing air flow from the timing belt housing (14) along the air channel (40). 9. Ajoneuvo (2), joka käsittää ohjaamon (50) ja jonkin edellisistä vaatimuksista mukaisen polttomoottorijärjestelyn (1).A vehicle (2) comprising a cab (50) and an internal combustion engine arrangement (1) according to any one of the preceding claims. 10. Vaatimuksen 9 mukainen ajoneuvo, tunnettu siitä, että ilmapuhallin (20) on järjestetty 20 syöttämään ilmaa ohjaamosta (50) jakohihnakoteloon (14).Vehicle according to claim 9, characterized in that the air blower (20) is arranged to supply air from the cab (50) to the timing belt housing (14). 20165197 prh 13-01-201720165197 prh 13-01-2017 11. Vaatimuksen 9 tai 10 mukainen ajoneuvo, tunnettu siitä, että järjestely käsittää ilman lämpötilan säätövälineet (31) ilmapuhaltimen (20) puhaltaman ilman lämpötilan säätämiseksi, ilman lämpötilan säätövälineet (31) on järjestetty säätämään jakohihnakoteloon (14) johdetun ilman lämpötilan ennalta määrätylle lämpötila25 alueelle, ja ilman lämpötilan säätövälineet (31) on järjestetty säätämään ohjaamossa (50) olevan ilman lämpötilaa.Vehicle according to claim 9 or 10, characterized in that the arrangement comprises air temperature control means (31) for controlling the air temperature blown by the air blower (20), the air temperature control means (31) being arranged to adjust the air temperature , and the air temperature control means (31) is arranged to control the temperature of the air in the cab (50).
FI20165197A 2016-03-09 2016-03-09 Combustion engine arrangement and vechicle FI127427B (en)

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