CN215633444U - Engine air intake communicating pipe, air intake pipeline assembly and engine - Google Patents

Abstract

The utility model relates to the technical field of engines, and discloses an engine air inlet communicating pipe, an air inlet pipeline assembly and an engine, wherein the engine air inlet communicating pipe comprises a body part, a two-way channel is arranged on the body part in a penetrating manner, and the two-way channel is used for communicating a first air inlet manifold and a second air inlet manifold on two sides of the engine; the bracket part is arranged on the body part and is provided with a turbocharger supporting position. The engine air inlet communicating pipe provided by the utility model is provided with the bracket part, the bracket part is provided with the turbocharger supporting position and the turbocharger exhaust pipe supporting position, the bracket function is integrated, and the turbocharger exhaust pipe can be borne, so that the integration level is high, and the two-way channel of the engine air inlet communicating pipe communicates the first air inlet manifold and the second air inlet manifold on two sides of the engine, so that the uniformity of air inlet of cylinders on two sides of the engine can be improved.

Description

Engine air intake communicating pipe, air intake pipeline assembly and engine

Technical Field

The utility model relates to the technical field of engines, in particular to an engine air inlet communicating pipe, an air inlet pipeline assembly and an engine.

Background

A V-type engine comprises two banks of cylinders, typically 3, 4 or more cylinders per bank depending on the number of cylinders. Since the two rows of cylinders are in a V shape when viewed from the side, the engine is called a V-type engine.

Due to the problems of limitation of vehicle arrangement space and the like, some common V-shaped engines are generally provided with an air inlet pipeline respectively at the outer sides of two rows of cylinders, and each air inlet pipeline is communicated with the adjacent cylinders through branch pipes respectively to realize air inlet of the cylinders at two sides. The problems are that: 1. the two air inlet pipelines are respectively communicated with the adjacent row of cylinders to independently supply air, so that the phenomenon of uneven air inlet of the cylinders at two sides often exists, and the performance of the engine is further influenced; 2. the arrangement of the air inlet pipeline of the V-shaped engine also relates to the arrangement of matching devices of air inlet systems such as a turbocharger, and the like, but the pipe fittings related to the air inlet pipeline in the existing air inlet system only have the ventilation function, so that the function is single, the integration level is low, and the arrangement of the turbocharger and other parts of the air inlet system is not convenient.

Therefore, it is desirable to provide an engine intake communicating tube and an intake pipe assembly, which have high integration and can improve the uniformity of intake air in the cylinders on both sides of the engine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an engine air inlet communicating pipe which is high in integration degree and can improve the uniformity of air inlet of cylinders on two sides of an engine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an engine intake communicating tube comprising:

the engine intake manifold comprises a body part, a first exhaust pipe and a second exhaust pipe, wherein a two-way channel is formed in the body part and is used for communicating a first intake manifold and a second intake manifold on two sides of the engine;

the bracket part is arranged on the body part and is provided with a turbocharger supporting position and a turbocharger waste gas pipe supporting position.

Optionally, the body portion and the bracket portion are of an integrally formed structure.

Optionally, the integral structure is provided with a reinforcing rib.

Optionally, the bracket portion is detachably fixed to the body portion.

Optionally, the method further comprises:

the extension carrier plate is detachably fixed on the support part.

Optionally, a positioning mounting hole is formed in the engine intake communicating pipe.

Optionally, an oil return pipeline is arranged on the engine air inlet communicating pipe and comprises a first oil port and a second oil port which are communicated with each other.

Optionally, there are two of the return lines.

Another objective of the present invention is to provide an intake pipe assembly, in which an engine intake communicating pipe in the intake pipe assembly has a high integration level, and can improve the uniformity of intake air for cylinders on both sides of the engine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an air intake conduit assembly comprising an engine intake communicating tube as described above, further comprising:

one end of the first air inlet manifold is communicated with an air compressor exhaust port of a turbocharger, and the other end of the first air inlet manifold is communicated with one end of the engine air inlet communicating pipe;

and one end of the second air inlet manifold is communicated with an air compressor exhaust port of the other turbocharger, and the other end of the second air inlet manifold is communicated with the other end of the engine air inlet communicating pipe.

Still another object of the present invention is to provide an engine, which has a high integration of intake pipe components and can improve the uniformity of intake air in the cylinders on both sides of the engine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an engine including the engine intake communicating tube as described above, further comprising:

two banks of cylinders, the first intake manifold being in communication with one of the banks of cylinders and the second intake manifold being in communication with the other bank of cylinders;

the two turbochargers are respectively arranged on the turbocharger supporting positions of the engine air inlet communicating pipe;

and the turbocharger waste gas pipe is arranged at the turbocharger waste gas pipe supporting position of the engine air inlet communicating pipe.

The utility model has the beneficial effects that:

according to the engine air inlet communicating pipe, on one hand, air inlets of the cylinders on two sides of the engine are more uniform by communicating the first air inlet manifold and the second air inlet manifold on two sides of the engine; on the other hand, the engine air inlet communicating pipe integrates the function of a support, has a turbocharger supporting position and a turbocharger waste gas pipe supporting position, is designed in an integrated mode, reduces the number of parts, shortens the production process, reduces the cost, and meanwhile enables all matching devices of an air inlet system of the engine and the arrangement of pipelines to be more compact.

Drawings

FIG. 1 is a schematic illustration of an engine intake crossover tube provided by the present invention;

FIG. 2 is a cross-sectional view of an engine intake crossover tube provided by the present invention;

FIG. 3 is a first schematic view of the intake assembly provided by the present invention as assembled with a turbocharger, a turbocharger inlet duct, and a turbocharger exhaust duct;

fig. 4 is a second schematic view of the air intake assembly provided by the present invention when assembled with a turbocharger, a turbocharger inlet duct, and a turbocharger exhaust duct.

In the figure:

x, air intake direction;

1. a body portion; 11. positioning the mounting hole; 12. an oil return line; 121. a first oil port; 122. a second oil port; 13. a two-way channel; 2. a bracket part; 21. a turbocharger support location; 22. a turbocharger air inlet pipe supporting position; 23. a turbocharger exhaust pipe support location; 3. reinforcing ribs; 4. extending the carrier plate; 5. a first main intake pipe; 51. a first air inlet port; 6. a first intake branch pipe; 7. a second main intake pipe; 71. a second air inlet port; 8. a second intake branch pipe; 9. a turbocharger; 10. a filter; 14. a turbocharger inlet duct; 15. a turbocharger exhaust pipe.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 to 4, the present embodiment provides an engine intake communicating tube, and also provides an intake pipe assembly and an engine. The engine includes an engine body (not shown in the drawings) and an intake pipe assembly of the present embodiment. The engine mainly refers to a V-type engine with an intake manifold respectively arranged on both sides of an engine body. The air intake pipeline assembly comprises a first air intake manifold, a second air intake manifold and the engine air intake communicating pipe provided by the embodiment, wherein the first air intake manifold comprises a first air intake main pipe 5 and a first air intake branch pipe 6, and the second air intake manifold comprises a second air intake main pipe 7 and a second air intake branch pipe 8. The first main air inlet pipe 5 is communicated with a plurality of first air inlet branch pipes 6 for communicating one of two rows of cylinders of the V-shaped engine; a plurality of second air inlet branch pipes 8 for communicating the other row of cylinders in the two rows of cylinders of the V-shaped engine are communicated with the second air inlet main pipe 7; the first air inlet port 51 at one end of the first air inlet main pipe 5 is used for being communicated with a compressor exhaust port of one turbocharger 9, the other end of the first air inlet main pipe 5 is communicated with one end of an engine air inlet communicating pipe, the second air inlet port 71 at one end of the second air inlet main pipe 7 is used for being communicated with a compressor exhaust port of the other turbocharger 9, and the other end of the second air inlet main pipe 7 is communicated with the other end of the engine air inlet communicating pipe to form a U-shaped pipe with air inlet at two ends. The engine air inlet communicating pipe plays a role in communicating the first air inlet main pipe 5 with the second air inlet main pipe 7, so that the internal air pressure of the first air inlet main pipe 5 and the internal air pressure of the second air inlet main pipe 7 are more balanced, and the air inlet uniformity of cylinders on two sides of the engine is improved.

In this embodiment, the engine intake communicating pipe of the intake pipe assembly is located at one end of the first intake port 51 far from the first intake main pipe 5 and the second intake port 71 far from the second intake main pipe 7, and when the engine intake communicating pipe is installed on the engine, the engine intake communicating pipe is arranged at a side position of the engine, which has the advantage of compact arrangement. It is conceivable that the engine intake communicating pipe is a separate pipe body in this embodiment, and in other embodiments, the first intake main pipe 5, the second intake main pipe 7, and the engine intake communicating pipe may be designed as an integrally formed structure.

Specifically, as shown in fig. 1 to 4, in the present embodiment, the engine intake communicating pipe includes a body portion 1 and a bracket portion 2. The main body part 1 is provided with a two-way channel 13, the two-way channel 13 is used for communicating a first intake manifold and a second intake manifold which are arranged at two sides of an engine (the arrow X direction in the figure indicates the air intake direction of two openings of the two-way channel 13, the two-way channel 13 can be in other directions during actual use, and the two-way channel 13 mainly plays a role in communication); the holder portion 2 is provided on the body portion 1, and the holder portion 2 is provided with a turbocharger support position 21, a turbocharger intake pipe support position 22, and a turbocharger exhaust pipe support position 23. The engine air inlet communicating pipe provided by the embodiment integrates the function of the support, the support part 2 on the support part can bear the turbocharger 9, the turbocharger air inlet pipe 14 and the turbocharger exhaust pipe 15 of the engine, and then the arrangement of related matching devices of an engine air inlet system can be optimized, so that the arrangement is more compact, an additional support does not need to be arranged on one side of the engine, and unnecessary arrangement space is occupied. It is contemplated that in some other embodiments, at least one of the turbocharger support location 21, the turbocharger inlet conduit support location 22, and the turbocharger exhaust conduit support location 23 may be provided on the support portion 2, depending on integration requirements.

More specifically, as shown in fig. 1-2, in the present embodiment, the main body portion 1 and the support portion 2 are integrally formed, so that the number of parts can be effectively reduced, the manufacturing and assembling process can be shortened, and the cost can be further reduced. It is envisaged that in some other embodiments the holder part 2 may be removably secured to the body part 1. Specifically, the body portion 1 and the bracket portion 2 are connected by a fastener (such as a fastening bolt or the like).

Further, as shown in fig. 1, in the present embodiment, the reinforcing rib 3 is provided on the integrally formed structure of the engine intake communicating pipe. The reinforcing rib 3 is integrally formed on the outer surfaces of the body part 1 and the support part 2, the reinforcing rib 3 can improve the rigidity of the air inlet communicating pipe of the engine, the bearing capacity of the support part 2 is further improved, the structural stability can be effectively enhanced, and the pressure loss and deformation are not easy to occur.

Further, as shown in fig. 4, in the present embodiment, the engine intake communicating pipe further includes an extension carrier plate 4. An extension carrier plate 4 is detachably fixed to the bracket part 2, the extension carrier plate 4 being configured to carry the turbocharger inlet pipe 14 together with the turbocharger support site 21. Specifically, the extension carrier plate 4 is fastened on the bracket part 2 by bolts, the extension carrier plate 4 plays a role of supporting the turbocharger air inlet pipe 14, the filter 10 is connected on the turbocharger air inlet pipe 14 in series, and the filter 10 is used for ensuring air inlet cleanness.

In order to fix the engine intake communicating pipe at the position corresponding to the engine, as shown in fig. 1-4, in this embodiment, the body portion 1 and the bracket portion 2 are provided with four positioning mounting holes 11, the positioning mounting holes 11 can be penetrated by screws, and the engine intake communicating pipe is fastened on the engine through the screws.

Further, as shown in fig. 1 to 4, in this embodiment, an oil return pipeline 12 is disposed on the engine intake communicating pipe, and the oil return pipeline 12 includes a first oil port 121 and a second oil port 122 that are communicated with each other. The first oil port 121 and the second oil port 122 may communicate with a lubricant inlet/outlet (not shown) of a lubricant passage of the turbocharger 9. The engine of this embodiment is gone up further integrated design oil return pipeline 12 on the communicating pipe for the structure is compacter.

In addition, in the air intake system of the conventional engine, due to the problems of the machine type structural design and the like, the oil return pipeline of the turbocharger which is designed in a split mode has the problem of being difficult to assemble and disassemble. The engine intake communicating pipe of the embodiment integrates the oil return pipeline 12 to replace a separate turbocharger oil return pipeline, and the oil return pipeline 12 and the turbocharger 9 are simpler to assemble and disassemble. When the turbocharger 9 is arranged at the turbocharger supporting position 21, the lubricating oil inlet and outlet of the turbocharger 9 can be directly communicated with the oil return pipeline 12. Specifically, the lubricating oil inlet and outlet of the lubricating oil passage on the turbocharger 9 may be sealed by a sealing ring by using a fastening member such as a fastening bolt to communicate the first oil port 121 and the second oil port 122. It should be noted that the communication mode between the oil return line 12 and the oil passage may adopt other existing connection structures, and details and limitations are not repeated.

More specifically, in the present embodiment, as shown in fig. 1 to 4, the turbocharger support positions 21 can provide fixed positions for two turbochargers 9, two oil return lines 12 are provided, and the air outlets of the two turbochargers 9 can be respectively communicated with the first air inlet port 51 of the first air inlet main pipe 5 and the second air inlet port 71 of the second air inlet main pipe 7 on two sides of the V-type engine through connecting lines (not shown), so as to finally achieve the purpose of respectively supplying air to the first air inlet main pipe 5 and the second air inlet main pipe 7. Wherein, the connecting pipeline can be connected in series with the existing intercooler (not shown in the figure) to control the cooling of the inlet air.

Specifically, the two turbochargers 9 respectively perform supercharging to suck external atmosphere, then the two turbochargers 9 respectively send the inlet air to the corresponding intercoolers for temperature control treatment, then respectively flows into the first air inlet port 51 of the first air inlet main pipe 5 and the second air inlet port 71 of the second air inlet main pipe 7 on two sides of the V-shaped engine, and orderly enters two rows of cylinders through a plurality of first air inlet branch pipes 6 and a plurality of second air inlet branch pipes 8, and the exhaust gas of the cylinders at the two sides respectively flows to the exhaust gas exhaust end of the corresponding turbocharger 9 through the respective exhaust pipelines, the exhaust gas is further discharged to turbocharger exhaust gas pipes 15 respectively communicating with turbine exhaust gas inlets of the two turbochargers 9 by the two turbochargers 9, and ultimately to the final exhaust pipe or the outside atmosphere via the outlet of the turbocharger exhaust pipe 15. The turbocharger exhaust pipe 15 is a three-way pipe. Due to the prior art of twin turbocharged engines, further description is omitted.

In summary, the engine intake communicating pipe provided by the embodiment, on one hand, by communicating the first intake main pipe 5 and the second intake main pipe 7, the intake of the double-bank cylinders on both sides of the V-shaped engine is more uniform; on the other hand, it has integrateed the function of support to integrated the design return oil pipe 12, integrated design has reduced spare part quantity, has shortened production processes, has reduced holistic cost, and simultaneously, two turbo charger 9, turbo charger exhaust pipe 15 and turbo charger intake pipe 14 direct fixed mounting are on support portion 2, also make each supporting device of the air intake system of engine and the arrangement of pipeline compacter. In addition, the oil return pipeline 12 is integrally designed on the air inlet communicating pipe of the engine, so that the disassembly and assembly matching operation of the oil return pipeline 12 and the turbocharger 9 is simpler, and a new pipe fitting does not need to be additionally arranged to serve as an oil return pipeline of the turbocharger.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. An engine intake communicating tube, characterized by comprising:

the engine air inlet manifold comprises a body part (1), wherein a two-way channel (13) is formed in the body part (1), and the two-way channel (13) is used for communicating a first air inlet manifold and a second air inlet manifold on two sides of the engine;

the support comprises a support part (2), wherein the support part (2) is arranged on the body part (1), and a turbocharger support position (21) and a turbocharger exhaust pipe support position (23) are arranged on the support part (2).

2. The engine intake communicating tube according to claim 1, wherein the body portion (1) and the bracket portion (2) are of an integrally molded structure.

3. The engine intake communicating tube according to claim 2, wherein the integrally formed structure is provided with a reinforcing rib (3).

4. The engine intake communicating tube according to claim 1, wherein the holder portion (2) is detachably fixed to the body portion (1).

5. The engine intake communicating tube of claim 1, further comprising:

an extension carrier plate (4), wherein the extension carrier plate (4) is detachably fixed on the bracket part (2).

6. The engine intake communicating pipe according to claim 1, wherein a positioning mounting hole (11) is formed in the engine intake communicating pipe.

7. The engine intake communicating pipe according to any one of claims 1 to 6, wherein an oil return line (12) is opened on the engine intake communicating pipe, and the oil return line (12) includes a first oil port (121) and a second oil port (122) which are communicated with each other.

8. The engine intake communicating tube according to claim 7, wherein the oil return line (12) has two in total.

9. An intake conduit assembly, comprising the engine intake crossover tube of any of claims 1-8, further comprising:

one end of the first air inlet manifold is communicated with a compressor exhaust port of a turbocharger (9), and the other end of the first air inlet manifold is communicated with one end of the engine air inlet communicating pipe;

and one end of the second air inlet manifold is communicated with a compressor exhaust port of another turbocharger (9), and the other end of the second air inlet manifold is communicated with the other end of the engine air inlet communicating pipe.

10. An engine, characterized by comprising the engine intake communicating pipe as recited in claim 9, and further comprising:

two banks of cylinders, the first intake manifold being in communication with one of the banks of cylinders and the second intake manifold being in communication with the other bank of cylinders;

the two turbochargers (9) are respectively arranged on the turbocharger supporting positions (21) of the engine air inlet communicating pipe;

and a turbocharger exhaust pipe (15) arranged at a turbocharger exhaust pipe support position (23) of the engine air inlet communicating pipe.

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