EP2543846A1 - Supercharger for an industrial vehicle with improved connection characteristics to the cooling circuit and industrial vehicle comprising such supercharger - Google Patents
Supercharger for an industrial vehicle with improved connection characteristics to the cooling circuit and industrial vehicle comprising such supercharger Download PDFInfo
- Publication number
- EP2543846A1 EP2543846A1 EP11172550A EP11172550A EP2543846A1 EP 2543846 A1 EP2543846 A1 EP 2543846A1 EP 11172550 A EP11172550 A EP 11172550A EP 11172550 A EP11172550 A EP 11172550A EP 2543846 A1 EP2543846 A1 EP 2543846A1
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- EP
- European Patent Office
- Prior art keywords
- supercharger
- port
- cooling circuit
- head
- hydraulic connector
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 239000000110 cooling liquid Substances 0.000 claims abstract description 21
- 238000005266 casting Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/005—Cooling of pump drives
Definitions
- the present invention belongs to the field of the production of superchargers intended to be used in the automotive field and in particular in the field of the production of industrial and/or commercial vehicles with diesel or gasoline engines.
- the present invention relates to a supercharger with improved connection characteristics to the hydraulic cooling circuit.
- the present invention relates also to an industrial vehicle comprising a supercharger according to the present invention.
- turbo-supercharged engines such supercharger is of the sliding-vane type and comprises a shaft mechanically driven by the shaft of a turbine driven, in its turn, by the exhaust gas produced by the engine.
- the shaft of the supercharger may be driven also by an electric motor.
- a supercharger for such applications comprises a supercharger body and a head usually connected to the supercharger body by means of stud bolts.
- the supercharger body defines a housing for the shaft of the supercharger, for the thrust mechanism connecting rod-crank-piston and for part of the cylinders of the supercharger.
- the structure of the cylinders is completed by the head which, together with the supercharger body, defines also the input of the air to be compressed, and the output of the compressed air.
- a supercharger for applications in the automotive field usually comprises a cooling circuit wherein a liquid, usually water, circulates in order to dissipate the heat produced by the compression of the air, and thus in order to extend the life and the integrity of the internal organs.
- a liquid usually water
- Such cooling circuit is connected, upstream, to at least a first circulation line of the liquid and, downstream, to a second circulation line of the same liquid.
- Such circulation lines, arranged on the vehicle, are external to the supercharger.
- the head of the supercharger usually defines at least an iinput section and at least an output section for the cooling liquid.
- a first hydraulic port is screwed by one side to the head of the supercharger, in correspondence to the input section.
- a second side of the first port is connected to a second hydraulic connector which hydraulically connects the cooling circuit to the first circulation line external to the supercharger.
- Another hydraulic port is screwed in the same way to the output section of the cooling circuit and is connected, by means of another hydraulic connector, to the second circulation line.
- connection mode of the supercharger cooling circuit to the circulation lines external to the supercharger has a number of drawbacks, the first of which is the complexity of the assembling.
- the latter in fact, first requires the connection of the ports to the head of the supercharger, and then the connection of other hydraulic connectors to the ports.
- Such double operation remarkably affects the assembling costs and the overall manufacturing costs.
- the threads realized on the head for screwing the ports are a critical factor.
- Another critical factor in terms of costs is represented by the ports themselves which have to be worked inside in order to allow the passage of the liquid: threaded on one side to screw in the head and appropriately shaped on the other side for connecting to the hydraulic connectors.
- a first aim of the present invention is to provide a supercharger whose cooling circuit can be connected easily and fast to the circulation lines of the cooling liquid external to the supercharger.
- Another aim of the present invention is to provide a supercharger whose connection between the cooling circuit and the circulation lines external to the supercharger is effective and functional in terms of flow rate of circulating liquid.
- a further aim of the present invention is to provide a supercharger whose connection between the cooling circuit and the circulation lines external to the supercharger is not a constraint for positioning the supercharger itself in the vehicle.
- the purpose of the present invention is to provide a supercharger which is reliable and easy to manufacture with competitive costs.
- connection port for the hydraulic connector is advantageously defined by a portion of the head of the supercharger, namely is defined in a single piece with the head itself. This advantageously reduces connection time and costs, improving the functionality and the effectiveness of the connection.
- the hydraulic connector is directly connected to the head. This allows to minimize the bulk of the connection of the hydraulic connector, thus facilitating the positioning of the supercharger.
- the direct connection of the hydraulic connector allows a higher flow rate of circulating liquid in the cooling circuit.
- the latter defines a seat for housing the mechanical parts that allow the compression of the air.
- the supercharger body 5 defines a first side 5' from which a propeller shaft 55 projects.
- the latter may be driven by an electric motor, or, in the case of a turbo-supercharged engine, by a turbine.
- the supercharger 1 comprises a cooling circuit which develops at least in part within the head 6 of the supercharger 1.
- a cooling liquid such as water
- a cooling liquid is intended to circulate coming from a first circulation line external to the supercharger and addressed to at least a second circulation line external to the supercharger as well.
- such cooling circuit develops at least in part within the head 6.
- the latter defines at least an input section and an output section of the cooling liquid (in the following called simply liquid) into/from the cooling circuit (in the following indicated also by internal circuit).
- the head 6 of the supercharger 1 comprises at least a first portion 11 defining a first connection port 21 (in the following "port") to which a first hydraulic connector 22 can be directly connected.
- first port 21 defines an input or output section of the cooling liquid from the cooling circuit of the supercharger.
- the first hydraulic connector 22 allows the communication between the cooling circuit and a first circulation line of the cooling liquid, external to the supercharger 1.
- the first connection port 21 is thus defined by a portion of the head 6, namely is made in a single piece with the head itself.
- Such solution allows to connect the cooling circuit of the supercharger 1 to an external circulation line by means of a single operation, namely by just connecting the first connector 22 to the first port 21.
- the first port 21, made in a single piece with the head 6, allows to minimize the bulk deriving from the assembling of the first hydraulic connector 22 and allows at the same time a higher flow rate of the liquid circulating in the internal circuit.
- Figures 1 and 2 show perspective views of a supercharger 1 according to the present invention.
- the head 6 comprises a main surface 6' from which a first side 6" and a second side 6''' opposite to the first side 6'' develop, a third side 6'''' and a fourth side 6'''' which develop between said first side 6" and said second side 6''' in a position reciprocally opposed.
- the head 6 comprises a second portion 12 defining a second port 21' to which a second hydraulic connector 22' can be directly connected.
- the second portion 12 projects from the main surface 6' of the head 6 according to a direction substantially orthogonal to a lying plane P (indicated in Figure 4 ) defined by the main surface 6' itself.
- the first portion 11 of the head 6, defining the first port 21, emerges from one side of the head 6 (in particular from the first side 6") developing according to a direction parallel to the lying plane P indicated above.
- Figures 3 and 4 are respectively a plan view and a side view that allow to observe the arrangement described above of the ports 21 and 21', each one of them defining a section (input or output) of the circuit internally defined in the head 6 of the supercharger 1.
- the first port 21 may define, for example, the input section of the internal circuit
- the second port 21' may define the output section of the same internal circuit.
- the head 6 may advantageously comprise also a third portion 13 and a fourth portion 14 arranged to define a third port and a fourth port (not shown in the figures) to which a third hydraulic connector and a fourth hydraulic connector (not shown in the figures) can be respectively connected.
- the head 6 comprises a plurality of portions 11, 12, 13, 14 each one of them is arranged to define, if necessary, a connection port to which an hydraulic connector 22, 22' can be connected.
- Each one of such possible ports may define in its turn an input or an output section of the cooling liquid from the cooling circuit.
- the number of ports defined by the head 6' may vary according to how the internal circuit of the supercharger 1 must be connected to the circulation lines of the liquid external to the supercharger itself.
- the first port 21 of the gripping head 6 may define an input section of the cooling circuit, while the second port 21' and a possible third port may define each one an output section of the internal circuit.
- the liquid coming out from the cooling circuit may be sent, by means of the second port 21' and of the third port to two different external circulation lines downstream of the cooling circuit.
- the third portion 13 emerges from the main surface 6' according to a direction substantially orthogonal to the lying plane P defined above (see figure 4 ). It can be observed that preferably the third portion 13 is near the first portion 11.
- the fourth portion 14 emerges preferably from the second side 6''' of the head 6 opposite to the first side 6' from which the second port 21' emerges.
- alternative arrangement of the portions 11, 12, 13 and 14 of the head 6 are to be considered as included in the scope of the present invention.
- FIGS 7 and 8 are views that allow to observe in detail a preferred shape of the ports 21, 22 of the head 6 of the supercharger 1 according to the present invention.
- the first port 21 comprises a cylindrical segment 31' which develops according to a longitudinal direction 101 corresponding to a direction of connection of the first hydraulic connector 22.
- the cylindrical segment 31' develops from a base surface 4, defined by the first portion 11 of the head 6 and is axially delimited, along the longitudinal direction 101, by a cylindrical end 31'' whose diameter D2 is higher than the diameter D1 of the cylindrical segment 31'.
- the cylindrical end 31'' defines a stopping shoulder 23 of said first hydraulic connector 22.
- the cylindrical end 31'' of the first port 21 defines an input 8 or an output section of the cooling liquid from the cooling circuit.
- the first port 21 defines a cylindrical internal recess 33 within which it is possible to insert an end 22' of the first hydraulic connector 22.
- Such internal recess 33 is hydraulically communicating with the cooling circuit, in order to allow the passage of the cooling liquid.
- Figure 7 shows a possible embodiment of the first hydraulic connector 22 that can be directly connected to the first port 21 of the head 6 of the supercharger 1.
- the first hydraulic connector 22 is substantially "I"-shaped, comprising an elongated hollow body 34 which develops between a first end 42, that can be inserted in the cylindrical recess 33 of the first port 21, and a second end 42' that can be connected to a circulation line of a cooling liquid not shown in the figures.
- the first hydraulic connector 22 further comprises a grommet 35 for the seal of the cooling liquid, once the first end 42 is inserted in the internal recess 33 of the first port 21.
- the first hydraulic connector 22 comprises also at least a pair of lateral portions 38 diametrically opposed which develop from the body 34 of the first connector 22 in a parallel way with respect to the axis of the connector itself.
- Each one of said connecting portions 38 comprises a connection end 38' which develops radially towards the body 34 of the first connector 22.
- the connection ends 38' are shaped in order to define a coupling of the "snap-fit" type which a stopping shoulder 23 defined by the cylindrical end 31' of the first port 21.
- Such connection can be easily seen for example from the side perspective view in Figure 5 .
- Figures 1 , 2 , 3 and 6 also show the embodiment of a second hydraulic connector 22' that can be connected to one of the ports 21,22 defined by the head 6.
- the second hydraulic connector 22' is connected to the second port 21'.
- the second hydraulic connector 22' is different from the first hydraulic connector 22 because the body of the connector is substantially "L"-shaped, so that the two ends of the same body develop according to a reciprocally orthogonal direction. It can be observed that such "L"-shape of the connector allows to further reduce the bulk of the supercharger according to the direction orthogonal to the main surface 6' of the head 6.
- the L-shaped hydraulic connector may be connected to the first port 21.
- the "I"-shaped hydraulic connector described above may be connected also to the second port 21' if the space available on the sides of the head 6 allows such connection.
- the present invention relates also to a vehicle comprising a supercharger 1 according to what indicated above.
- the vehicle according to the invention comprises a first circulation line and a second circulation line of a cooling liquid hydraulically connected upstream and downstream of the cooling circuit of the supercharger 1.
- the vehicle according to the invention comprises at least a first hydraulic connector 22 connected to a first port 21 defined by a first portion 11 of the head 6 of the supercharger 1.
- Such first hydraulic connector 22 connects the supercharger cooling circuit 1 to said first circulation line of the cooling liquid, external to the supercharger.
- the vehicle according to the invention comprises preferably also a second hydraulic connector 22' connected to a second port 21' defined by a first portion of the head itself 6.
- Such second hydraulic connector 22' connects the cooling circuit 1 to said second cooling line, external to the supercharger 1.
- the technical solutions adopted for the supercharger according to the invention allow to completely fulfil the task and the purposes set.
- the supercharger according to the invention can be subjected to numerous variations or modification, without departing from the scope of the invention; moreover all the details may be replaced by others technically equivalent.
- the material used and also the dimensions and the shapes may be any, according to the needs and to the state of the art.
Abstract
Description
- The present invention belongs to the field of the production of superchargers intended to be used in the automotive field and in particular in the field of the production of industrial and/or commercial vehicles with diesel or gasoline engines. In particular the present invention relates to a supercharger with improved connection characteristics to the hydraulic cooling circuit. The present invention relates also to an industrial vehicle comprising a supercharger according to the present invention.
- As it is known, vehicles with diesel/gasoline engines use, in most cases, a supercharger to increase the pressure of the air addressed to the diesel engine. In case of turbo-supercharged engines, such supercharger is of the sliding-vane type and comprises a shaft mechanically driven by the shaft of a turbine driven, in its turn, by the exhaust gas produced by the engine. In particular applications, the shaft of the supercharger may be driven also by an electric motor.
- It is also known that a supercharger for such applications comprises a supercharger body and a head usually connected to the supercharger body by means of stud bolts. The supercharger body defines a housing for the shaft of the supercharger, for the thrust mechanism connecting rod-crank-piston and for part of the cylinders of the supercharger. The structure of the cylinders is completed by the head which, together with the supercharger body, defines also the input of the air to be compressed, and the output of the compressed air.
- A supercharger for applications in the automotive field usually comprises a cooling circuit wherein a liquid, usually water, circulates in order to dissipate the heat produced by the compression of the air, and thus in order to extend the life and the integrity of the internal organs. Such cooling circuit is connected, upstream, to at least a first circulation line of the liquid and, downstream, to a second circulation line of the same liquid. Such circulation lines, arranged on the vehicle, are external to the supercharger.
- In most of the solutions, the head of the supercharger usually defines at least an iinput section and at least an output section for the cooling liquid. A first hydraulic port is screwed by one side to the head of the supercharger, in correspondence to the input section. A second side of the first port is connected to a second hydraulic connector which hydraulically connects the cooling circuit to the first circulation line external to the supercharger. Another hydraulic port is screwed in the same way to the output section of the cooling circuit and is connected, by means of another hydraulic connector, to the second circulation line.
- Such connection mode of the supercharger cooling circuit to the circulation lines external to the supercharger has a number of drawbacks, the first of which is the complexity of the assembling. The latter, in fact, first requires the connection of the ports to the head of the supercharger, and then the connection of other hydraulic connectors to the ports. Such double operation remarkably affects the assembling costs and the overall manufacturing costs. In particular the threads realized on the head for screwing the ports are a critical factor. Another critical factor in terms of costs is represented by the ports themselves which have to be worked inside in order to allow the passage of the liquid: threaded on one side to screw in the head and appropriately shaped on the other side for connecting to the hydraulic connectors.
- Moreover, the use of ports screwed to the head has proved to be disadvantageous, also in terms of bulk. In particular, the connectors emerge in a disadvantageous way with respect to the head of the supercharger, determining constraints to the positioning of the supercharger itself in the vehicle and complicating the connection of the cooling circuit with the external circulation lines. Moreover, it has been observed that using connectors screwed to the head affects negatively also the functionality of the hydraulic connection, limiting the rate flow in the cooling circuit. Obviously this has the negative effect of limiting the quantity of heat that is dissipated, which negatively affects the life and the reliability of the supercharger.
- On the basis of these considerations, the need is evident for alternative technical solutions, which allow to overcome such drawbacks.
- The main task of the present invention is to overcome all the drawbacks set forth above. In the scope of this task, a first aim of the present invention is to provide a supercharger whose cooling circuit can be connected easily and fast to the circulation lines of the cooling liquid external to the supercharger. Another aim of the present invention is to provide a supercharger whose connection between the cooling circuit and the circulation lines external to the supercharger is effective and functional in terms of flow rate of circulating liquid. A further aim of the present invention is to provide a supercharger whose connection between the cooling circuit and the circulation lines external to the supercharger is not a constraint for positioning the supercharger itself in the vehicle. Not least, the purpose of the present invention is to provide a supercharger which is reliable and easy to manufacture with competitive costs.
- This task and these aims are achieved by means of a supercharger according to what stated in
claim 1. According to the present invention, the connection port for the hydraulic connector is advantageously defined by a portion of the head of the supercharger, namely is defined in a single piece with the head itself. This advantageously reduces connection time and costs, improving the functionality and the effectiveness of the connection. In other words, the hydraulic connector is directly connected to the head. This allows to minimize the bulk of the connection of the hydraulic connector, thus facilitating the positioning of the supercharger. Moreover the direct connection of the hydraulic connector allows a higher flow rate of circulating liquid in the cooling circuit. - Further purposes and advantages of this invention will become clear from the following detailed description of a preferred embodiment and from the drawings that are attached hereto that are merely illustrative and not limitative, in which:
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Figures 1 and2 show respectively a first and a second perspective view of a supercharger according to the present invention; -
Figure 3 shows a plan view of the supercharger ofFigure 1 ; -
Figure 4 shows a side view of the supercharger ofFigure 1 comprising the section according to the line IV-IV ofFigure 3 ; -
Figures 5 and 6 show perspective views respectively of a first part and of a second part of the supercharger ofFigure 1 ; -
Figures 7 and 8 show respectively a first and a second view of details of the head of a supercharger according to the present invention. - In the figures the same reference numbers and letters identify the same elements or components.
- With particular reference to the figures, the
supercharger 1 that is object of the present invention comprises asupercharger body 5 and a closure head 6 (in the following called just head 6), realized in a body made by casting, which is connected to thesupercharger body 5, for example by means of a plurality ofstud bolts 56. The latter defines a seat for housing the mechanical parts that allow the compression of the air. In particular thesupercharger body 5 defines a first side 5' from which a propeller shaft 55 projects. The latter may be driven by an electric motor, or, in the case of a turbo-supercharged engine, by a turbine. - The
supercharger 1 comprises a cooling circuit which develops at least in part within thehead 6 of thesupercharger 1. In particular, in such cooling circuit a cooling liquid, such as water, is intended to circulate coming from a first circulation line external to the supercharger and addressed to at least a second circulation line external to the supercharger as well. As indicated, such cooling circuit develops at least in part within thehead 6. The latter defines at least an input section and an output section of the cooling liquid (in the following called simply liquid) into/from the cooling circuit (in the following indicated also by internal circuit). - According to the present invention, the
head 6 of thesupercharger 1 comprises at least afirst portion 11 defining a first connection port 21 (in the following "port") to which a firsthydraulic connector 22 can be directly connected. Suchfirst port 21 defines an input or output section of the cooling liquid from the cooling circuit of the supercharger. The firsthydraulic connector 22 allows the communication between the cooling circuit and a first circulation line of the cooling liquid, external to thesupercharger 1. - According to the present invention, the
first connection port 21 is thus defined by a portion of thehead 6, namely is made in a single piece with the head itself. Such solution allows to connect the cooling circuit of thesupercharger 1 to an external circulation line by means of a single operation, namely by just connecting thefirst connector 22 to thefirst port 21. Thefirst port 21, made in a single piece with thehead 6, allows to minimize the bulk deriving from the assembling of the firsthydraulic connector 22 and allows at the same time a higher flow rate of the liquid circulating in the internal circuit. -
Figures 1 and2 show perspective views of asupercharger 1 according to the present invention. Thehead 6 comprises a main surface 6' from which afirst side 6" and a second side 6''' opposite to the first side 6'' develop, a third side 6'''' and a fourth side 6''''' which develop between saidfirst side 6" and said second side 6''' in a position reciprocally opposed. - According to a preferred embodiment of the invention, the
head 6 comprises asecond portion 12 defining a second port 21' to which a second hydraulic connector 22' can be directly connected. In the embodiment shown infigures 1 and2 , thesecond portion 12 projects from the main surface 6' of thehead 6 according to a direction substantially orthogonal to a lying plane P (indicated inFigure 4 ) defined by the main surface 6' itself. Thefirst portion 11 of thehead 6, defining thefirst port 21, emerges from one side of the head 6 (in particular from thefirst side 6") developing according to a direction parallel to the lying plane P indicated above. -
Figures 3 and 4 are respectively a plan view and a side view that allow to observe the arrangement described above of theports 21 and 21', each one of them defining a section (input or output) of the circuit internally defined in thehead 6 of thesupercharger 1. In this sense thefirst port 21 may define, for example, the input section of the internal circuit, while the second port 21' may define the output section of the same internal circuit. - With particular reference to
figures 5 and 6 , in the embodiment shown in the figures, thehead 6 may advantageously comprise also athird portion 13 and afourth portion 14 arranged to define a third port and a fourth port (not shown in the figures) to which a third hydraulic connector and a fourth hydraulic connector (not shown in the figures) can be respectively connected. In other words, according to this aspect of the invention, thehead 6 comprises a plurality ofportions hydraulic connector 22, 22' can be connected. Each one of such possible ports may define in its turn an input or an output section of the cooling liquid from the cooling circuit. Thus the number of ports defined by the head 6' may vary according to how the internal circuit of thesupercharger 1 must be connected to the circulation lines of the liquid external to the supercharger itself. - According to a possible operating configuration, the
first port 21 of thegripping head 6 may define an input section of the cooling circuit, while the second port 21' and a possible third port may define each one an output section of the internal circuit. In other words, according to this solution the liquid coming out from the cooling circuit may be sent, by means of the second port 21' and of the third port to two different external circulation lines downstream of the cooling circuit. - In particular, in the solution shown in the figures, the
third portion 13 emerges from the main surface 6' according to a direction substantially orthogonal to the lying plane P defined above (seefigure 4 ). It can be observed that preferably thethird portion 13 is near thefirst portion 11. Thefourth portion 14 emerges preferably from the second side 6''' of thehead 6 opposite to the first side 6' from which the second port 21' emerges. Obviously, also in case, alternative arrangement of theportions head 6 are to be considered as included in the scope of the present invention. -
Figures 7 and 8 are views that allow to observe in detail a preferred shape of theports head 6 of thesupercharger 1 according to the present invention. For the sake of simplicity, only thefirst port 21 is described in the following, but the considerations are valid also for the second port 21' and for the other ports, if any, that can derive from the third 13 or thefourth portion 14. Thefirst port 21 comprises a cylindrical segment 31' which develops according to alongitudinal direction 101 corresponding to a direction of connection of the firsthydraulic connector 22. The cylindrical segment 31' develops from a base surface 4, defined by thefirst portion 11 of thehead 6 and is axially delimited, along thelongitudinal direction 101, by a cylindrical end 31'' whose diameter D2 is higher than the diameter D1 of the cylindrical segment 31'. The cylindrical end 31'' defines a stoppingshoulder 23 of said firsthydraulic connector 22. - With reference to
Figure 8 , the cylindrical end 31'' of thefirst port 21 defines aninput 8 or an output section of the cooling liquid from the cooling circuit. Thefirst port 21 defines a cylindricalinternal recess 33 within which it is possible to insert an end 22' of the firsthydraulic connector 22. Suchinternal recess 33 is hydraulically communicating with the cooling circuit, in order to allow the passage of the cooling liquid. -
Figure 7 shows a possible embodiment of the firsthydraulic connector 22 that can be directly connected to thefirst port 21 of thehead 6 of thesupercharger 1. As shown in the figure, the firsthydraulic connector 22 is substantially "I"-shaped, comprising an elongatedhollow body 34 which develops between afirst end 42, that can be inserted in thecylindrical recess 33 of thefirst port 21, and a second end 42' that can be connected to a circulation line of a cooling liquid not shown in the figures. - The first
hydraulic connector 22 further comprises agrommet 35 for the seal of the cooling liquid, once thefirst end 42 is inserted in theinternal recess 33 of thefirst port 21. The firsthydraulic connector 22 comprises also at least a pair oflateral portions 38 diametrically opposed which develop from thebody 34 of thefirst connector 22 in a parallel way with respect to the axis of the connector itself. Each one of said connectingportions 38 comprises a connection end 38' which develops radially towards thebody 34 of thefirst connector 22. In particular, the connection ends 38' are shaped in order to define a coupling of the "snap-fit" type which a stoppingshoulder 23 defined by the cylindrical end 31' of thefirst port 21. Such connection can be easily seen for example from the side perspective view inFigure 5 . -
Figures 1 ,2 ,3 and6 also show the embodiment of a second hydraulic connector 22' that can be connected to one of theports head 6. In particular, in such figures the second hydraulic connector 22' is connected to the second port 21'. The second hydraulic connector 22' is different from the firsthydraulic connector 22 because the body of the connector is substantially "L"-shaped, so that the two ends of the same body develop according to a reciprocally orthogonal direction. It can be observed that such "L"-shape of the connector allows to further reduce the bulk of the supercharger according to the direction orthogonal to the main surface 6' of thehead 6. Of course, if the available space is particularly limited on the sides 6'', 6''' of thehead 6 of thesupercharger 1, then the L-shaped hydraulic connector may be connected to thefirst port 21. In the same way, the "I"-shaped hydraulic connector described above may be connected also to the second port 21' if the space available on the sides of thehead 6 allows such connection. - The present invention relates also to a vehicle comprising a
supercharger 1 according to what indicated above. In particular the vehicle according to the invention comprises a first circulation line and a second circulation line of a cooling liquid hydraulically connected upstream and downstream of the cooling circuit of thesupercharger 1. The vehicle according to the invention comprises at least a firsthydraulic connector 22 connected to afirst port 21 defined by afirst portion 11 of thehead 6 of thesupercharger 1. Such firsthydraulic connector 22 connects thesupercharger cooling circuit 1 to said first circulation line of the cooling liquid, external to the supercharger. The vehicle according to the invention comprises preferably also a second hydraulic connector 22' connected to a second port 21' defined by a first portion of the head itself 6. Such second hydraulic connector 22' connects thecooling circuit 1 to said second cooling line, external to thesupercharger 1. - The technical solutions adopted for the supercharger according to the invention allow to completely fulfil the task and the purposes set. The supercharger according to the invention, can be subjected to numerous variations or modification, without departing from the scope of the invention; moreover all the details may be replaced by others technically equivalent. In practice, the material used and also the dimensions and the shapes may be any, according to the needs and to the state of the art.
Claims (6)
- Supercharger (1) for an engine of and industrial or commercial vehicle, said supercharger (1) comprising:- a supercharger body (5);- a closing head (6) connected to said supercharger body (5) and made in a single casting body;- a cooling circuit defined at least in part in said head (6), said cooling circuit comprising at least an input section and an output section of a cooling liquid,
wherein said head (6) comprises at least a first portion (11) defining a first port (21) to which a first hydraulic connector (22) is directly connected in order to connect said cooling circuit to a first circulation line of said cooling liquid external to said supercharger (1), said first port (21) defining one of said sections of said cooling circuit. - Supercharger (1) according to claim 1, comprising a second portion (12) defining a second port (21') to which a second hydraulic connector (22') can be directly connected in order to connect said cooling circuit to a second circulation line of said cooling liquid external to said supercharger (1), said second port (21') defining the other one of said sections of said cooling circuit.
- Supercharger according to claim 1, wherein said at least a first port (21) comprises a cylindrical segment (31') which develops according to a longitudinal direction (101) connecting said first hydraulic connector (22) to said first port (21), said cylindrical segment (31') being delimited along said longitudinal section (101) by a cylindrical end (31'') whose diameter is larger than said first cylindrical segment (31') in order to define a stopping shoulder (23) of said first hydraulic connector (22).
- Supercharger according to any of the claims from 1 to 3, wherein said head (6) comprises a main surface (6') from which a first side (6'') and a second side (6''') opposite to the first side (6'') develop, a third side (6'''') and a fourth side (6''''') which develop between said first side (6") and said second side (6''') in a position reciprocally opposed, said first portion (11) emerging from said main surface (6') of from one of said sides (6'', 6''', 6'''', 6''''').
- Supercharger according to claim 2, wherein said head (6) comprises a third portion defining a further port to which a further hydraulic connector can be directly connected in order to connect said cooling circuit to a further circulation line of said cooling liquid external to said supercharger (1), said further port defining an input or an output section of said cooling liquid from said cooling circuit.
- Industrial or commercial vehicle characterized in that it comprises a supercharger (1) according to any of the claims from 1 to 5, said vehicle comprising a first circulation line and a second circulation line of said cooling liquid external to said supercharger (1), said vehicle comprising at least a first connector (22) connected to said first port (21) and connected to one of said circulation lines of said cooling liquid.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES11172550T ES2706421T3 (en) | 2011-07-04 | 2011-07-04 | Supercharger for an industrial vehicle with improved connection characteristics to the refrigeration circuit and the industrial vehicle comprising such a supercharger |
EP11172550.3A EP2543846B1 (en) | 2011-07-04 | 2011-07-04 | Supercharger for an industrial vehicle with improved connection characteristics to the cooling circuit and industrial vehicle comprising such supercharger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11172550.3A EP2543846B1 (en) | 2011-07-04 | 2011-07-04 | Supercharger for an industrial vehicle with improved connection characteristics to the cooling circuit and industrial vehicle comprising such supercharger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2543846A1 true EP2543846A1 (en) | 2013-01-09 |
EP2543846B1 EP2543846B1 (en) | 2018-11-21 |
Family
ID=44582160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11172550.3A Active EP2543846B1 (en) | 2011-07-04 | 2011-07-04 | Supercharger for an industrial vehicle with improved connection characteristics to the cooling circuit and industrial vehicle comprising such supercharger |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2543846B1 (en) |
ES (1) | ES2706421T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180163620A1 (en) * | 2014-07-04 | 2018-06-14 | Volvo Truck Corporation | A turbocharger unit |
Citations (5)
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US5392604A (en) * | 1993-01-27 | 1995-02-28 | Wartsila Diesel International Ltd Oy | Support and cooling arrangement for a turbocharger |
WO2005113961A1 (en) * | 2004-05-19 | 2005-12-01 | Toyota Jidosha Kabushiki Kaisha | Motor-assisted turbo charger for an internal combustion engine |
FR2925116A3 (en) * | 2007-12-12 | 2009-06-19 | Renault Sas | Turbocompressor for internal combustion engine, has transporting unit with cooling conduits extended on portions of external radial and axial walls of compressor casing, where one of conduits transports fresh coolant towards central casing |
EP2305981A1 (en) * | 2009-09-23 | 2011-04-06 | Robert Bosch GmbH | Electrical turbocharger |
EP2395213A1 (en) * | 2010-06-11 | 2011-12-14 | Fiat Powertrain Technologies S.p.A. | Supercharged internal combustion engine with an integrated coupling flange for a turbosupercharger |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006011797A1 (en) * | 2006-03-15 | 2007-09-20 | Man Nutzfahrzeuge Ag | Vehicle or stationary power plant with a supercharged internal combustion engine as the drive source |
-
2011
- 2011-07-04 EP EP11172550.3A patent/EP2543846B1/en active Active
- 2011-07-04 ES ES11172550T patent/ES2706421T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5392604A (en) * | 1993-01-27 | 1995-02-28 | Wartsila Diesel International Ltd Oy | Support and cooling arrangement for a turbocharger |
WO2005113961A1 (en) * | 2004-05-19 | 2005-12-01 | Toyota Jidosha Kabushiki Kaisha | Motor-assisted turbo charger for an internal combustion engine |
FR2925116A3 (en) * | 2007-12-12 | 2009-06-19 | Renault Sas | Turbocompressor for internal combustion engine, has transporting unit with cooling conduits extended on portions of external radial and axial walls of compressor casing, where one of conduits transports fresh coolant towards central casing |
EP2305981A1 (en) * | 2009-09-23 | 2011-04-06 | Robert Bosch GmbH | Electrical turbocharger |
EP2395213A1 (en) * | 2010-06-11 | 2011-12-14 | Fiat Powertrain Technologies S.p.A. | Supercharged internal combustion engine with an integrated coupling flange for a turbosupercharger |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180163620A1 (en) * | 2014-07-04 | 2018-06-14 | Volvo Truck Corporation | A turbocharger unit |
US10794269B2 (en) * | 2014-07-04 | 2020-10-06 | Volvo Truck Corporation | Turbocharger unit |
Also Published As
Publication number | Publication date |
---|---|
EP2543846B1 (en) | 2018-11-21 |
ES2706421T3 (en) | 2019-03-28 |
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