WO2024047424A1 - Turbocompressor. - Google Patents

Turbocompressor. Download PDF

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Publication number
WO2024047424A1
WO2024047424A1 PCT/IB2023/057569 IB2023057569W WO2024047424A1 WO 2024047424 A1 WO2024047424 A1 WO 2024047424A1 IB 2023057569 W IB2023057569 W IB 2023057569W WO 2024047424 A1 WO2024047424 A1 WO 2024047424A1
Authority
WO
WIPO (PCT)
Prior art keywords
inlet
turbocompressor
housing
opening
channels
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.)
Ceased
Application number
PCT/IB2023/057569
Other languages
French (fr)
Inventor
Ben Ceulemans
Jan Achiel Lutgart STOFFIJN
Tom VAN DEN BERGH
Tom André Jenny POTTERS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco Airpower NV
Original Assignee
Atlas Copco Airpower NV
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
Application filed by Atlas Copco Airpower NV filed Critical Atlas Copco Airpower NV
Priority to CN202390000542.1U priority Critical patent/CN223578037U/en
Publication of WO2024047424A1 publication Critical patent/WO2024047424A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0205—Details, e.g. sensors or measuring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0205—Details, e.g. sensors or measuring devices
    • F02M35/0207—Details, e.g. sensors or measuring devices on the clean air side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • F02M35/044—Special arrangements of cleaners in or with respect to the air intake system, e.g. in the intake plenum, in ducts or with respect to carburettors
    • F02M35/046—Inline cleaners, i.e. the cleaner being arranged along the length of a wall of a pipe or manifold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10019—Means upstream of the fuel injection system, carburettor or plenum chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10098—Straight ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F02M35/1036—Joining multiple sections together by welding, bonding or the like

Definitions

  • the present invention relates to a turbocompressor.
  • turbocompressors comprise a housing having an impeller arranged therein, whereby gas, for example ambient air, is sucked in via an inlet in the housing, which gas is compressed by the impeller, after which the compressed gas exits the turbocompressor via an outlet in the housing.
  • gas for example ambient air
  • an inlet filter is connected to the inlet to clean the gas before it enters the turbocompressor.
  • Inlet filters are known in the form of flat panel filters.
  • an inlet filter having a number of cylindrical cartridges that are arranged in a grid on a plate or the like, the longitudinal axes of the cartridges extending parallel to each other.
  • the cartridges are often arranged with their outlet on the plate or the like.
  • the outlet of the inlet filter which is a combination of the various individually circular outlets of the various cartridges, is further routed to the inlet of the turbocompressor, which is typically circular.
  • the transition from the outlet of the inlet filter to the inlet of the turbocompressor is implemented in a variety of ways.
  • the shape of the aforementioned plate comprising the various circular outlets of the various cartridges is often connected to the inlet of the turbocompressor by means of a funnel-shaped element.
  • a disadvantage of such a solution is that turbulences are created in the funnel- shaped element at the location of the sharp edge, where a sudden expansion is created by arranging a plurality of cylindrical cartridges on the aforementioned plate, along which the gas flow must pass.
  • a pressure sensor is located at this inlet and is used together with a pressure sensor located near the outlet of the turbocompressor to determine the differential pressure across the impeller.
  • the differential pressure is a measure of the flow rate of the turbocompressor.
  • This invention aims at solving at least one of the aforementioned and other disadvantages.
  • the present invention relates to a turbocompressor, which turbocompressor is provided with a turbocompressor element having a housing in which an impeller is arranged, the housing being provided with an inlet for gas to be compressed and an outlet for compressed gas, the turbocompressor being further provided with an inlet filter comprising a number of cylindrical filter cartridges, each having a circular outlet opening, an inlet element being provided between the inlet filter and the inlet of the housing, which inlet element is provided with straight channels, each of which extends from one of the aforementioned circular outlet openings to the inlet of the housing, the channels extending from the circular outlet openings towards each other to form a joint flow-through opening, said joint flow-through opening being connected to the inlet.
  • a turbocompressor element having a housing in which an impeller is arranged, the housing being provided with an inlet for gas to be compressed and an outlet for compressed gas
  • the turbocompressor being further provided with an inlet filter comprising a number of cylindrical filter cartridges, each having a circular
  • the aforementioned straight channels extend at an angle with the filter cartridges.
  • the longitudinal axis of the filter cartridges extends at an angle to the longitudinal axis of the respective channel.
  • An advantage is that by using the aforementioned inlet piece, the filtered air flows from the filter cartridges are guided with little or no turbulence to the inlet of the housing.
  • the improvement in the flow is accompanied by an improvement in the efficiency of the turbocompressor.
  • Another positive effect that can be achieved by an inlet element according to the invention is that less instability occurs in the rotation of the impeller, thus drastically reducing the radial forces in the radial bearings.
  • Another advantage of the inlet element is that the acoustic properties of the inlet element change with respect to the inlet and the inlet filter, eliminating resonance.
  • the inlet element Another effect of the inlet element is that the air supply to the inlet is divided into and delineated by the various channels, so that instability can have only a limited effect on the gas supply. It is also known that the rotation of the impeller can also affect the airflow upstream. Because the inlet element divides the air flow, the impact thereof can be reduced.
  • the inlet element is made of steel plates.
  • the inlet element By folding steel sheets to form the straight channels, the inlet element can be made very easily and inexpensively.
  • the cross section of the channels is preferably polygonal.
  • the surface area of the cross section of the channels is constant or varies by no more than 10% along the length of the respective channel.
  • the constant or nearly constant flow-through opening ensures that there is little or no additional turbulence.
  • Figure 1 is a schematic representation, in perspective, of a turbocompressor according to the invention
  • Figures 2A and 2B are a schematic representation, in perspective, of an inlet element according to the invention
  • Figures 3A and 3B are a schematic representation, in perspective, of an alternative embodiment of an inlet element according to the invention.
  • the turbocompressor 1 shown in Figure 1 comprises a turbocompressor element 2 and a drive 3.
  • the turbocompressor 1 is a directly driven turbocompressor 1 .
  • the turbocompressor element 2 has a housing 4 in which an impeller is arranged, the housing 4 being provided with an inlet 5 for gas to be compressed and an outlet for compressed gas to which an exhaust pipe 6 is connected.
  • turbocompressor 1 is also provided with the necessary electronics 7 and cooling 8.
  • the turbocompressor 1 is also provided with an inlet filter 9.
  • This inlet filter 9 is provided with a number of cylindrical filter cartridges 10.
  • the inlet filter 9 in this case comprises two cylindrical filter cartridges 10.
  • Each filter cartridge 10 has a circular outlet opening 11.
  • the clean air exists the filter cartridge 10 via this circular outlet opening 11 .
  • the filter cartridges 10 are arranged on a flat plate 12.
  • the longitudinal axis X-X’ of the filter cartridges 10 extends perpendicularly or substantially perpendicularly to the flat plate 12.
  • an inlet element 13 is provided between the inlet filter 9 and the inlet 5 of the housing 4.
  • the channels 14 extend from the circular outlet openings 11 to the inlet 5 of the housing 4.
  • the channels 14 extend from the circular outlet openings 11 towards each other to form a joint flow-through opening 15.
  • the flow-through opening 15 is in turn connected to the inlet 5.
  • the shape of the flow-through opening 15 corresponds to the shape of the inlet 5 of the housing 4.
  • the inlet element 13 is in this case made of steel plates.
  • the straight channels 14 are formed by folding steel sheets, thus forming straight channels 14 with polygonal cross sections.
  • the cross section is hexagonal. Note that this does not have to be a regular hexagon.
  • the surface area of the cross section is not constant in this case but varies by 10% along the longitudinal axis Y-Y’ of the channel 14.
  • the cross section decreases by 10% in the direction of the inlet 5 of the housing 4.
  • the operation of the turbocompressor 1 is very simple and as follows.
  • the aspirated gas to be compressed is cleaned as it passes through the inlet filter 9, the cleaned gas exiting the inlet filter 9 via the circular outlet openings 11.
  • the cleaned gas ends up in the channels 14, the gas from each filter cartridge 10 ending up in the corresponding channel 14.
  • Figures 3A and 3B show a variant of the inlet element 13 according to Figures 2A and 2B, in this case the inlet element 13 comprising four straight channels 14 and the inlet element 9 thus likewise comprising four cylindrical filter cartridges 10.
  • the straight channels 14 also join to form the joint flow-through opening 15.
  • the channels 14 have a constant cross section.
  • turbocompressor according to the invention can be implemented in all shapes and sizes without going beyond the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Analytical Chemistry (AREA)
  • Supercharger (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A turbocompressor, which turbocompressor (1) is provided with a turbocompressor element (2) having a housing (4) in which an impeller is arranged, the housing (4) being provided with an inlet (5) for gas to be compressed and an outlet for compressed gas, the turbocompressor (1) being further provided with an inlet filter (9) comprising a number of cylindrical filter cartridges (10), each having a circular outlet opening (11), characterized in that an inlet element (13) is provided between the inlet filter (9) and the inlet (5) of the housing (4), which inlet element is provided with straight channels (14), each of which extends from one of the aforementioned circular outlet openings (11) to the inlet (5) of the housing (4), the channels (14) extending from the circular outlet openings (11) towards each other to form a joint flow- through opening (15), said joint flow-through opening (15) being connected to the inlet (5).

Description

TURBOCOMPRESSOR.
The present invention relates to a turbocompressor.
It is known that turbocompressors comprise a housing having an impeller arranged therein, whereby gas, for example ambient air, is sucked in via an inlet in the housing, which gas is compressed by the impeller, after which the compressed gas exits the turbocompressor via an outlet in the housing.
Traditionally, an inlet filter is connected to the inlet to clean the gas before it enters the turbocompressor.
Inlet filters are known in the form of flat panel filters.
Also known is an inlet filter having a number of cylindrical cartridges that are arranged in a grid on a plate or the like, the longitudinal axes of the cartridges extending parallel to each other. In this case, the cartridges are often arranged with their outlet on the plate or the like.
The outlet of the inlet filter, which is a combination of the various individually circular outlets of the various cartridges, is further routed to the inlet of the turbocompressor, which is typically circular.
The transition from the outlet of the inlet filter to the inlet of the turbocompressor is implemented in a variety of ways.
The shape of the aforementioned plate comprising the various circular outlets of the various cartridges is often connected to the inlet of the turbocompressor by means of a funnel-shaped element.
A disadvantage of such a solution is that turbulences are created in the funnel- shaped element at the location of the sharp edge, where a sudden expansion is created by arranging a plurality of cylindrical cartridges on the aforementioned plate, along which the gas flow must pass.
The disadvantage of this is that the flow to the inlet is disturbed.
A pressure sensor is located at this inlet and is used together with a pressure sensor located near the outlet of the turbocompressor to determine the differential pressure across the impeller. The differential pressure is a measure of the flow rate of the turbocompressor.
Due to the disturbed flow, pressure fluctuations or noise are observed in this differential pressure measurement.
In other words, correct measurement of the differential pressure is no longer possible.
Especially at high flow rates, there is a lot of noise in this differential pressure measurement.
This invention aims at solving at least one of the aforementioned and other disadvantages.
The present invention relates to a turbocompressor, which turbocompressor is provided with a turbocompressor element having a housing in which an impeller is arranged, the housing being provided with an inlet for gas to be compressed and an outlet for compressed gas, the turbocompressor being further provided with an inlet filter comprising a number of cylindrical filter cartridges, each having a circular outlet opening, an inlet element being provided between the inlet filter and the inlet of the housing, which inlet element is provided with straight channels, each of which extends from one of the aforementioned circular outlet openings to the inlet of the housing, the channels extending from the circular outlet openings towards each other to form a joint flow-through opening, said joint flow-through opening being connected to the inlet.
In the inlet element, the aforementioned straight channels extend at an angle with the filter cartridges. In other words, the longitudinal axis of the filter cartridges extends at an angle to the longitudinal axis of the respective channel.
An advantage is that by using the aforementioned inlet piece, the filtered air flows from the filter cartridges are guided with little or no turbulence to the inlet of the housing.
This optimized flow through this air guide system avoids the aforementioned pressure fluctuations in the differential pressure measurement.
This makes the differential pressure measurement stable and reliable.
In addition, the improvement in the flow is accompanied by an improvement in the efficiency of the turbocompressor.
Another positive effect that can be achieved by an inlet element according to the invention is that less instability occurs in the rotation of the impeller, thus drastically reducing the radial forces in the radial bearings.
Another advantage of the inlet element is that the acoustic properties of the inlet element change with respect to the inlet and the inlet filter, eliminating resonance.
Another effect of the inlet element is that the air supply to the inlet is divided into and delineated by the various channels, so that instability can have only a limited effect on the gas supply. It is also known that the rotation of the impeller can also affect the airflow upstream. Because the inlet element divides the air flow, the impact thereof can be reduced.
According to a preferred feature of the invention, the inlet element is made of steel plates.
By folding steel sheets to form the straight channels, the inlet element can be made very easily and inexpensively.
This is a much simpler and less expensive option than, for example, making a casting.
By placing the inlet element itself in an airtight funnel, there is no need for the element to be airtight, further reducing production costs.
For such an embodiment, the cross section of the channels is preferably polygonal.
According to a preferred feature, the surface area of the cross section of the channels is constant or varies by no more than 10% along the length of the respective channel.
The constant or nearly constant flow-through opening ensures that there is little or no additional turbulence.
To better demonstrate the features of the invention, the following describes, as an example without any restrictive character, a preferred embodiment of an turbocompressor according to the invention, with reference to the accompanying drawings, wherein:
Figure 1 is a schematic representation, in perspective, of a turbocompressor according to the invention; Figures 2A and 2B are a schematic representation, in perspective, of an inlet element according to the invention;
Figures 3A and 3B are a schematic representation, in perspective, of an alternative embodiment of an inlet element according to the invention.
The turbocompressor 1 shown in Figure 1 comprises a turbocompressor element 2 and a drive 3.
In this case, but not necessarily, the turbocompressor 1 is a directly driven turbocompressor 1 .
The turbocompressor element 2 has a housing 4 in which an impeller is arranged, the housing 4 being provided with an inlet 5 for gas to be compressed and an outlet for compressed gas to which an exhaust pipe 6 is connected.
In this case, the turbocompressor 1 is also provided with the necessary electronics 7 and cooling 8.
According to the invention, the turbocompressor 1 is also provided with an inlet filter 9.
This inlet filter 9 is provided with a number of cylindrical filter cartridges 10.
In Figures 2A and 2B, the inlet filter 9 is shown in more detail.
As can be seen in this figure, the inlet filter 9 in this case comprises two cylindrical filter cartridges 10.
Each filter cartridge 10 has a circular outlet opening 11. The clean air exists the filter cartridge 10 via this circular outlet opening 11 . In this case, but not necessarily so for the invention, the filter cartridges 10 are arranged on a flat plate 12.
In Figures 2A and 2B, they are arranged on the flat plate 12 with their outlet opening 11. The flat plate 12 is therefore also provided with openings or passages.
The longitudinal axis X-X’ of the filter cartridges 10 extends perpendicularly or substantially perpendicularly to the flat plate 12.
According to the invention, an inlet element 13 is provided between the inlet filter 9 and the inlet 5 of the housing 4.
In Figures 2A and 2B, this inlet element 13 is shown in more detail.
It is provided with a number of straight channels 14, in this case two, just as many as the number of filter cartridges 10 of the inlet filter 9.
The channels 14 extend from the circular outlet openings 11 to the inlet 5 of the housing 4.
The channels 14 extend from the circular outlet openings 11 towards each other to form a joint flow-through opening 15.
This means that the longitudinal axes Y-Y’ of the channels 14 extend towards each other, and thus do not extend parallel to each other.
The flow-through opening 15 is in turn connected to the inlet 5.
For this purpose, in this embodiment, the shape of the flow-through opening 15 corresponds to the shape of the inlet 5 of the housing 4. As can be seen in Figures 2A and 2B, the inlet element 13 is in this case made of steel plates.
The straight channels 14 are formed by folding steel sheets, thus forming straight channels 14 with polygonal cross sections.
In this case, the cross section is hexagonal. Note that this does not have to be a regular hexagon.
In addition, the surface area of the cross section is not constant in this case but varies by 10% along the longitudinal axis Y-Y’ of the channel 14.
In particular, the cross section decreases by 10% in the direction of the inlet 5 of the housing 4.
The operation of the turbocompressor 1 is very simple and as follows.
The aspirated gas to be compressed is cleaned as it passes through the inlet filter 9, the cleaned gas exiting the inlet filter 9 via the circular outlet openings 11.
The cleaned gas ends up in the channels 14, the gas from each filter cartridge 10 ending up in the corresponding channel 14.
From there, the two separate air flows are directed to the joint flow-through opening 15.
Due to the specific design of the inlet element 13, no turbulences are generated here. From the flow-through opening 15, the gas ends up in the inlet 5 and then in the turbocompressor element 2, where it is compressed in the known manner and exits the turbocompressor 1 via the exhaust pipe 6.
Figures 3A and 3B show a variant of the inlet element 13 according to Figures 2A and 2B, in this case the inlet element 13 comprising four straight channels 14 and the inlet element 9 thus likewise comprising four cylindrical filter cartridges 10.
In this case, the straight channels 14 also join to form the joint flow-through opening 15.
In this case, the channels 14 have a constant cross section.
Otherwise, this embodiment and its operation are the same as in the embodiment from Figures 2A and 2B.
The current invention is by no means limited to the embodiments described as examples and shown in the figures, but a turbocompressor according to the invention can be implemented in all shapes and sizes without going beyond the scope of the invention.

Claims

Claims.
1.- A turbocompressor, which turbocompressor (1) is provided with a turbocompressor element (2) having a housing (4) in which an impeller is arranged, the housing (4) being provided with an inlet (5) for gas to be compressed and an outlet for compressed gas, the turbocompressor (1) being further provided with an inlet filter (9) comprising a number of cylindrical filter cartridges (10), each having a circular outlet opening (11), characterized in that an inlet element (13) is provided between the inlet filter (9) and the inlet (5) of the housing (4), which inlet element is provided with straight channels (14), each of which extends from one of the aforementioned circular outlet openings (11) to the inlet (5) of the housing (4), the channels (14) extending from the circular outlet openings (11) towards each other to form a joint flow- through opening (15), said joint flow-through opening (15) being connected to the inlet (5).
2.- The turbocompressor according to claim 1 , characterized in that the inlet element (13) is made of steel plates.
3.- The turbocompressor according to claim 1 or 2, characterized in that a cross section of the channels (14) is polygonal.
4.- The turbocompressor according to any of the preceding claims, characterized in that a surface area of a cross section of the channels (14) is constant or varies by no more than 10% along the longitudinal axis of the respective channel (14).
5.- The turbocompressor according to any of the preceding claims, characterized in that the turbocompressor (1) is a directly driven turbocompressor (1).
6.- The turbocompressor according to any of the preceding claims, characterized in that the filter cartridges (10) are arranged on a flat plate (12), their longitudinal axis extending perpendicularly or substantially perpendicularly to the flat plate (12).
7.- The turbocompressor according to any of the preceding claims, characterized in that a shape of the flow-through opening (15) corresponds to a shape of the inlet (5) of the housing (4).
PCT/IB2023/057569 2022-09-02 2023-07-26 Turbocompressor. Ceased WO2024047424A1 (en)

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CN202390000542.1U CN223578037U (en) 2022-09-02 2023-07-26 Turbo compressor

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BE20225698A BE1030840B1 (en) 2022-09-02 2022-09-02 Turbocharger
BE2022/5698 2022-09-02

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100050865A1 (en) * 2008-09-02 2010-03-04 Paccar Inc Systems and methods for delivering air to vehicle engines
WO2018011856A1 (en) * 2016-07-11 2018-01-18 株式会社小松製作所 Air intake device and dump truck

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100050865A1 (en) * 2008-09-02 2010-03-04 Paccar Inc Systems and methods for delivering air to vehicle engines
WO2018011856A1 (en) * 2016-07-11 2018-01-18 株式会社小松製作所 Air intake device and dump truck

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BE1030840B1 (en) 2024-04-02
CN223578037U (en) 2025-11-21

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