Engine

Abstract

The utility model provides an engine which comprises an engine body, a fuel injection pump, an intake manifold and a filter. A combustion chamber is arranged in the engine body, the fuel injection pump and the intake manifold are fixed on the engine body through bolts, and the intake manifold is communicated with the combustion chamber and located above the fuel injection pump. The filter is fixed on the intake manifold through bolts and located above the fuel injection pump, the filter is connected with the fuel injection pump, and the filter, the intake manifold and the fuel injection pump are arranged on the same side of the engine body. By arranging the filter above the fuel injection pump, after the fuel is filtered by the filter, the fuel can flow downwards into the fuel injection pump, so that fuel pumping is smoother, the fuel pumping effect is good, and the dynamic property and economical efficiency of an engine are improved. Meanwhile, the filter is installed on the intake manifold, and the filter, the intake manifold and the fuel injection pump are arranged on the same side of the engine body, so that the structural arrangement of the engine is more compact and reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine. Background Art

[0002] With the development and progress of society, people have higher and higher requirements for living environment and air quality, and higher and higher requirements for emission indicators and economy of internal combustion engines. Internal combustion engine technology is also constantly developing, and engine power is constantly increasing, which puts forward corresponding requirements for engine emissions, reliability, noise suppression and post-maintenance.

[0003] The fuel system and the air intake system are important and basic components of the engine. The structural arrangement of the fuel injection pump, the intake manifold and the intake pipe affects the emission, power and economy of the engine. Therefore, how to improve the power and economy of the engine by optimizing the overall structure of the engine is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide an engine, which makes the structural layout of the engine more compact and reasonable, and improves the power and economy of the engine.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an engine, including an engine body, which is provided with a combustion chamber; a fuel injection pump, which is arranged on the engine body; an intake manifold, which is arranged on the engine body and is connected to the combustion chamber, and the intake manifold is located above the fuel injection pump; and a filter, which is arranged on the intake manifold and is located above the fuel injection pump, and the filter is connected to the fuel injection pump, and the filter, the intake manifold and the fuel injection pump are arranged on the same side of the engine body.

[0006] Preferably, a gear chamber is provided in the engine body, a transmission gear is provided in the gear chamber, and a rotating shaft of the fuel injection pump extends into the gear chamber and is connected to the transmission gear.

[0007] Preferably, a connecting block is provided on the transmission gear, and the rotating shaft of the fuel injection pump extends into the gear chamber and is connected to the connecting block.

[0008] Preferably, a connecting plate covering the gear chamber is provided on the engine body, and a first mounting seat is provided on the fuel injection pump, and the first mounting seat is arranged on the connecting plate.

[0009] Preferably, it further comprises an intake pipe and a supercharger, wherein the intake pipe is communicated with the supercharger and the intake manifold respectively.

[0010] Preferably, an air intake passage is provided in the air intake pipe, and the inner wall of the air intake passage is arc-shaped.

[0011] Preferably, the supercharger is provided with a connecting pipe, and the connecting pipe is communicated with the air intake pipe.

[0012] Preferably, a main air duct and a plurality of branch air ducts are provided in the intake manifold, the main air duct is connected with the intake pipe, and the branch air ducts are respectively connected with the main air duct and the combustion chamber.

[0013] Preferably, a second mounting seat is provided on the intake manifold, and the filter is arranged on the second mounting seat.

[0014] Beneficial effects of the utility model:

[0015] The utility model discloses an engine, which arranges a filter above a fuel injection pump. After filtering the fuel, the filter facilitates the fuel to flow downward into the fuel injection pump, thereby making the oil pumping smoother and having a good oil pumping effect, thereby improving the power and economy of the engine. At the same time, by installing the filter on the intake manifold and arranging the filter, the intake manifold and the fuel injection pump on the same side of the engine body, the structural layout of the engine is made more compact and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A schematic diagram of the structure of an engine provided by an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the cooperation between the fuel injection pump, the connecting block and the transmission gear;

[0019] Figure 3 It is a structural schematic diagram of the intake manifold;

[0020] Figure 4 for Figure 3 Front view of the state;

[0021] Figure 5 for Figure 4 AA section diagram in;

[0022] Figure 6 for Figure 3 Top view of the state;

[0023] Figure 7 for Figure 4 BB cross-section diagram in FIG.

[0024] Figure 8 This is a schematic diagram of the structure of the filter installed on the intake manifold;

[0025] Reference numerals:

[0026] 10. Engine body; 11. Combustion chamber; 12. Gear chamber; 13. Connecting plate; 20. Fuel injection pump; 21. Rotating shaft; 22. First mounting seat; 30. Transmission gear; 31. Connecting block; 40. Intake manifold; 41. Main air duct; 42. Branch air duct; 43. Second mounting seat; 50. Filter; 60. Intake pipe; 61. Intake channel; 70. Supercharger; 71. Connecting pipe. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] like Figure 1-8 As shown, in one embodiment of the utility model, an engine is provided, including an engine body 10, a fuel injection pump 20, an intake manifold 40 and a filter 50. A combustion chamber 11 is provided in the engine body 10, and the fuel injection pump 20 and the intake manifold 40 are both fixed to the engine body 10 by bolts, and the intake manifold 40 is communicated with the combustion chamber 11, and the intake manifold 40 is located above the fuel injection pump 20. The filter 50 is fixed to the intake manifold 40 by bolts and is located above the fuel injection pump 20, and the filter 50 is connected to the fuel injection pump 20, and the filter 50, the intake manifold 40 and the fuel injection pump 20 are arranged on the same side of the engine body 10.

[0034] The engine disclosed in this embodiment arranges the filter 50 above the fuel injection pump 20. After filtering the fuel, the filter 50 facilitates the fuel to flow downward into the fuel injection pump 20, thereby making the oil pumping smoother and more effective, and allowing the fuel to enter the combustion chamber 11 more effectively to participate in the combustion, thereby improving the power and economy of the engine. At the same time, by installing the filter 50 on the intake manifold 40, and arranging the filter 50, the intake manifold 40 and the fuel injection pump 20 on the same side of the engine body 10, the structural layout of the engine is more compact and reasonable.

[0035] In one embodiment, a gear chamber 12 is provided in the engine body 10, a transmission gear 30 is provided in the gear chamber 12, and a rotating shaft 21 of the fuel injection pump 20 extends into the gear chamber 12 and is connected to the transmission gear 30. When the gear rotates under the drive of the internal transmission mechanism of the engine, the rotating shaft 21 of the fuel injection pump 20 is synchronously driven to rotate, thereby achieving the purpose of driving the fuel injection pump 20 to supply oil.

[0036] In one embodiment, a connecting block 31 is fixed to the transmission gear 30 by bolts, and the rotating shaft 21 of the fuel injection pump 20 extends into the gear chamber 12 and is connected to the connecting block 31. Since the rotating shaft 21 of the fuel injection pump 20 is connected to the transmission gear 30 by the connecting block 31, the connection between the transmission gear 30 and different types of fuel injection pumps 20 can be adapted to the maximum extent by using the connecting block 31, so that the engine has better versatility and economy.

[0037] In one embodiment, in order to achieve the connection between the fuel injection pump 20 and the engine body 10, a connecting plate 13 covering the gear chamber 12 is provided on the engine body 10, and a first mounting seat 22 is provided on the fuel injection pump 20, and the first mounting seat 22 is fixed to the connecting plate 13 by bolts.

[0038] See also Figure 3-Figure 8 , the arrow in the figure indicates the flow direction of air. In one embodiment, the engine further includes an intake pipe 60 and a supercharger 70, and the intake pipe 60 is connected to the supercharger 70 and the intake manifold 40 respectively. Before entering the intake manifold 40, the air is first compressed by the supercharger 70 to increase the density of the air, so that the air flow rate is increased and then enters the intake manifold 40 through the intake pipe 60, and then is transported by the intake manifold 40 to the combustion chamber 11 to be fully mixed with the fuel for combustion, thereby increasing the engine power and improving the engine's dynamic performance.

[0039] In one embodiment, an intake passage 61 is provided in the intake pipe 60, and the inner wall of the intake passage 61 is arc-shaped. A connecting pipe 71 is provided on the supercharger 70, and the connecting pipe 71 is connected to the intake pipe 60. After the fresh air increases the flow rate through the supercharger 70, it enters the intake pipe 60 through the connecting pipe 71. Since the inner wall of the intake passage 61 is arc-shaped, this design can effectively reduce the resistance of the air in the intake passage 61, so that the fresh air can flow more smoothly in the intake pipe 60.

[0040] In one embodiment, a main air passage 41 and a plurality of branch air passages 42 are provided in the intake manifold 40. The main air passage 41 is connected to the intake pipe 60, and the branch air passages 42 are respectively connected to the main air passage 41 and the combustion chamber 11. The intake pipe 60 is fixed to the intake manifold 40 by bolts. After the air in the intake pipe 60 enters the main air passage 41, the air is collected in the main air passage 41, and then enters the combustion chamber 11 through the branch air passage 42 according to the combustion requirements of each cylinder of the engine to be fully mixed with the fuel for combustion.

[0041] In one embodiment, a second mounting seat 43 is disposed on the intake manifold 40 , and the filter 50 is fixed to the second mounting seat 43 by bolts.

[0042] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. An engine, characterized in that: include: An engine body (10) is provided with a combustion chamber (11); A fuel injection pump (20) is arranged on the engine body (10); An intake manifold (40) is provided on the engine body (10) and is in communication with the combustion chamber (11), wherein the intake manifold (40) is located above the fuel injection pump (20); as well as A filter (50) is arranged on the intake manifold (40) and is located above the fuel injection pump (20). The filter (50) is connected to the fuel injection pump (20). The filter (50), the intake manifold (40) and the fuel injection pump (20) are arranged on the same side of the engine body (10).

2. The engine according to claim 1, characterized in that A gear chamber (12) is provided in the engine body (10), a transmission gear (30) is provided in the gear chamber (12), and a rotating shaft (21) of the fuel injection pump (20) extends into the gear chamber (12) and is connected to the transmission gear (30).

3. The engine according to claim 2, characterized in that A connecting block (31) is provided on the transmission gear (30), and a rotating shaft (21) of the fuel injection pump (20) extends into the gear chamber (12) and is connected to the connecting block (31).

4. The engine according to claim 3, characterized in that The engine body (10) is provided with a connecting plate (13) covering the gear chamber (12), and the fuel injection pump (20) is provided with a first mounting seat (22), and the first mounting seat (22) is arranged on the connecting plate (13).

5. The engine according to claim 1, characterized in that It also includes an intake pipe (60) and a supercharger (70), wherein the intake pipe (60) is communicated with the supercharger (70) and the intake manifold (40) respectively.

6. The engine according to claim 5, characterized in that: An air intake passage (61) is provided in the air intake pipe (60), and the inner wall of the air intake passage (61) is arc-shaped.

7. The engine according to claim 5, characterized in that The supercharger (70) is provided with a connecting pipe (71), and the connecting pipe (71) is in communication with the air intake pipe (60).

8. The engine according to claim 5, characterized in that The intake manifold (40) is provided with a main air passage (41) and a plurality of branch air passages (42); the main air passage (41) is in communication with the intake pipe (60), and the branch air passages (42) are respectively in communication with the main air passage (41) and the combustion chamber (11).

9. The engine according to claim 1, characterized in that The intake manifold (40) is provided with a second mounting seat (43), and the filter (50) is arranged on the second mounting seat (43).

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