Engine

Abstract

The utility model provides an engine which is provided with a throttle valve body in a compact mode, can restrain vibration of the throttle valve body, and prevents condensed water and oil from being attached to the throttle valve body. The engine includes: an engine body having a plurality of cylinders; and an annular intake manifold including a resonance pipe connected to one end of each of the pair of resonance chambers, a communication pipe connected to the other end of each of the pair of resonance chambers, and a pair of resonance chambers arranged in a row direction of the plurality of cylinders, the annular intake manifold including a pair of resonance chambers arranged in a row direction of the plurality of cylinders, the resonance pipe being connected to one end of each of the pair of resonance chambers, and the communication pipe being connected to the other end of each of the pair of resonance chambers. The engine further comprises a throttling valve body and a plurality of air inlet pipes, the throttling valve body is connected to the resonance pipes, the air inlet pipes are alternately arranged between the resonance chambers and connected with the resonance chambers and the air cylinders, the tops of the resonance pipes are located in the outer contour of the annular air inlet manifold, and the air inlet pipes are located in the outer contour of the annular air inlet manifold. The throttle valve body is connected to the top of the resonance tube.

Description

Technical Field

[0001] This utility model relates to a vehicle component and an engine. Background Technology

[0002] In recent years, research and development on lightweight vehicles that contribute to energy efficiency have been ongoing to ensure access to affordable, reliable, sustainable, and advanced energy for more people. However, in vehicle engines, the throttle body is typically located on the side of the annular intake manifold. This arrangement increases the horizontal space occupied by the overall structure and interferes with the power control unit (PCU) located next to the engine, contradicting the trend towards compact and lightweight vehicle design. Specifically, in hybrid vehicles equipped with two power sources (an engine and a drive motor integrated into the transmission), a main battery providing power to the drive motor and a power control unit controlling power distribution are required. The transmission is mounted horizontally next to the engine, the power control unit is mounted on the transmission, and the annular intake manifold is mounted on the engine. Therefore, the throttle body located on the side of the annular intake manifold interferes with the power control unit. Thus, it is necessary to improve the engine to overcome these problems. Utility Model Content

[0003] This utility model relates to an engine with a compact throttle body that can suppress throttle body vibration and prevent condensate and oil from adhering to the throttle body.

[0004] According to an embodiment of the present invention, an engine includes: an engine body having a plurality of cylinders; and an annular intake manifold including a resonant tube, a connecting tube, and a pair of resonant chambers, the pair of resonant chambers being arranged along the column direction of the plurality of cylinders, the resonant tube being connected to one end of each of the pair of resonant chambers, and the connecting tube being connected to the other end of each of the pair of resonant chambers. The engine further includes a throttle valve body and a plurality of intake pipes, the throttle valve body being connected to the resonant tube, the plurality of intake pipes being alternately arranged between the pair of resonant chambers and connecting the pair of resonant chambers and the plurality of cylinders, the top of the resonant tube being located inside the outer contour of the annular intake manifold, and the throttle valve body being connected to the top of the resonant tube.

[0005] In an embodiment of the present invention, the throttling valve body has a butterfly throttling valve, the valve shaft of which is perpendicular to the resonant chamber.

[0006] In an embodiment of the present invention, the engine is a V-type engine, and the annular intake manifold is disposed on the cylinder bank of the engine body, which includes the plurality of cylinders.

[0007] Based on the above, in the engine of this invention, the throttle body is disposed at the top of the resonant tube and located inside the outer contour of the annular intake manifold. Accordingly, the distance between the throttle body and the engine body is reduced, and the overall rigidity is increased, thereby suppressing the vibration of the throttle body and the annular intake manifold. Furthermore, since the throttle body is disposed at the top of the resonant tube, airflow flows downwards from the throttle body to the resonant tube, thus the downward airflow suppresses the scattering of condensate and oil under the action of gravity. Therefore, the engine of this invention has a compactly arranged throttle body, which can suppress throttle body vibration and prevent condensate and oil from adhering to the throttle body. Attached Figure Description

[0008] Figure 1 This is a partial cross-sectional schematic diagram of an engine according to an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 Top view of the engine;

[0010] Figure 3 yes Figure 2 Rear view of the air intake structure;

[0011] Figure 4 yes Figure 3 A cross-sectional view of the air intake structure.

[0012] Explanation of icon numbers

[0013] 100: Engine;

[0014] 110: Engine body;

[0015] 110A, 110B: Cylinder exhaust;

[0016] 112: Cylinder head cover;

[0017] 114: Cylinder head;

[0018] 116: Cylinder;

[0019] 120: Intake structure;

[0020] 122: Annular intake manifold;

[0021] 1221A, 1221B: Resonance chambers;

[0022] 1222: Resonant tube;

[0023] 1222a: Top;

[0024] 1223: Connecting pipe;

[0025] 124A, 124B: Intake pipes;

[0026] 130: Throttling valve body;

[0027] 132: Butterfly throttle valve;

[0028] A: Extended axis;

[0029] D: Direction;

[0030] X, Y, Z: Axial axes. Detailed Implementation

[0031] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals are used in the drawings and description to denote the same or similar parts.

[0032] Figure 1 This is a partial cross-sectional schematic diagram of an engine according to an embodiment of the present invention, showing the axial directions X, Y, and Z. Figure 2 yes Figure 1 A top view of the engine. Please refer to... Figure 1 and Figure 2 The engine 100 of this embodiment includes an engine body 110, an intake structure 120, and a throttle body 130. The engine body 110 is, for example, a V-type engine and includes two cylinder banks 110A and 110B. Cylinder bank 110A is, for example, a rest-side cylinder bank, and cylinder bank 110B is, for example, a conventional-side cylinder bank. Each of cylinder banks 110A and 110B includes a cylinder head cover 112, a cylinder head 114, and a plurality of cylinders 116. The plurality of cylinders 116 of each of cylinder banks 110A and 110B are arranged along the axial direction X. The intake structure 120 is disposed on the engine body 110 and connected to the cylinder banks 110A and 110B, and the throttle body 130 is connected to the intake structure 120. Air enters the cylinder banks 110A and 110B via the throttle body 130 and the intake structure 120. The air purifier 140 is positioned above the air intake structure 120.

[0033] Please refer to Figure 2 The intake structure 120 includes an annular intake manifold 122 and a plurality of intake pipes 124A and 124B of equal length. The annular intake manifold 122 includes a pair of resonant chambers 1221A and 1221B and includes a resonant pipe 1222 and a connecting pipe 1223. The pair of resonant chambers 1221A and 1221B extend along the cylinder 116 (shown in...). Figure 1The cylinders 116 are arranged in a column direction (axis Y). Resonance tubes 1222 are connected to one end of each resonance chamber 1221A, 1221B, and connecting pipes 1223 are connected to the other end of each resonance chamber 1221A, 1221B. Multiple intake pipes 124A, 124B are alternately arranged between a pair of resonance chambers 1221A, 1221B and connect the pair of resonance chambers 1221A, 1221B and multiple cylinders 116. A throttle body 130 is connected to the resonance tube 1222.

[0034] In detail, multiple intake pipes 124A are connected to the resonance chamber 1221A and are respectively connected to Figure 1 The cylinder bank 110A shown has multiple cylinders 116 and multiple intake pipes 124B connected to the resonance chamber 1221B and respectively connected to... Figure 1 The cylinder bank 110B shown has multiple cylinders 116. A portion of the air flows from the throttle body 130 through the resonant tube 1222, the resonant chamber 1221A, and the intake pipe 124A to enter the cylinder bank 110A, while another portion of the air flows from the throttle body 130 through the resonant tube 1222, the resonant chamber 1221B, and the intake pipe 124B to enter the cylinder bank 110B.

[0035] Figure 3 yes Figure 2 Rear view of the air intake structure. Figure 4 yes Figure 3 A cross-sectional view of the air intake structure. Please refer to... Figures 2 to 4 In this embodiment, when viewed from above the engine 100 ( Figure 2 (From the perspective shown), the top 1222a of the resonant tube 1222 is located inside the outer contour of the annular intake manifold 122, while the throttle body 130 is connected to the top 1222a of the resonant tube 1222.

[0036] Because the throttle body 130 is located at the top 1222a of the resonant tube 1222 and inside the outer contour of the annular intake manifold 122, the distance between the throttle body 130 and the engine body 110 is reduced and the overall rigidity is increased, thereby suppressing the vibration of the throttle body 130 and the annular intake manifold 122. Furthermore, because the throttle body 130 is located at the top 1222a of the resonant tube 1222, airflow from the throttle body 130 along the downward direction D (indicated by...) Figure 4 The airflow flows to the resonant tube 1222, so the downward airflow suppresses the scattering of condensate and oil under the action of gravity. Thus, the engine 100 of this embodiment has a compact throttle body 130, which can suppress the vibration of the throttle body 130 and prevent condensate and oil from adhering to the throttle body 130.

[0037] Furthermore, the throttle body 130 of this embodiment has a butterfly throttle valve 132, the valve shaft 132a of which is perpendicular to the resonance chambers 1221A and 1221B. More specifically, the extension axis A of the valve shaft 132a of the butterfly throttle valve 132 is perpendicular to the extension direction (axial direction X) of the resonance chambers 1221A and 1221B. Accordingly, when the butterfly throttle valve 132 is open, especially when the opening is small, the airflow flowing from the opening of the butterfly throttle valve 132 to the intake structure 120 is uniformly distributed along the arrangement direction (axial direction Y) of the resonance chambers 1221A and 1221B. Therefore, the airflow can be uniformly distributed to the resonance chambers 1221A and 1221B, and then uniformly flowed to each cylinder 116 to improve combustion efficiency.

[0038] In this embodiment, the annular intake manifold 122 is disposed on the cylinder banks 110A and 110B of the engine body 110, so that the throttle body 130, located inside the outer contour of the annular intake manifold 122, is positioned above the plurality of cylinders 116. Accordingly, hot air from the plurality of cylinders 116 flows upward through the throttle body 130, thereby preventing the butterfly throttle valve 132 of the throttle body 130 from freezing and becoming stuck at low temperatures.

[0039] In summary, in the engine of this invention, the throttle body is positioned at the top of the resonant tube and inside the outer contour of the annular intake manifold. This reduces the distance between the throttle body and the engine body and increases overall rigidity, thereby suppressing vibrations of the throttle body and the annular intake manifold. Furthermore, because the throttle body is positioned at the top of the resonant tube, airflow flows downwards from the throttle body to the resonant tube, thus the downward airflow suppresses the scattering of condensate and oil under the influence of gravity. Therefore, the engine of this invention features a compact throttle body, which suppresses throttle body vibration and prevents condensate and oil from adhering to the throttle body.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An engine, characterized in that, include: The engine block has multiple cylinders; as well as The annular intake manifold includes a resonant tube, a connecting tube, and a pair of resonant chambers. The pair of resonance chambers are arranged along the column direction of the plurality of cylinders. The resonant tube is connected to one end of each of the pair of resonant chambers. The connecting pipe connects to the other end of each of the pair of resonant chambers. The engine also includes a throttle body and multiple intake pipes. The throttling valve body is connected to the resonant tube. The plurality of intake pipes are alternately arranged between the pair of resonance chambers and connect the pair of resonance chambers and the plurality of cylinders. The top of the resonant tube is located inside the outer contour of the annular intake manifold, and the throttle valve body is connected to the top of the resonant tube.

2. The engine according to claim 1, characterized in that, The throttling valve body has a butterfly throttling valve. The valve shaft of the butterfly throttle valve is perpendicular to the resonant chamber.

3. The engine according to claim 1 or 2, characterized in that, The engine is a V-type engine. The annular intake manifold is disposed on the cylinder bank of the engine body, which contains the plurality of cylinders.

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