Inclined angle type oil pan structure and engine with inclined angle type oil pan

Abstract

The utility model relates to a dip angle type oil pan structure and an engine with a dip angle type oil pan. The dip angle type oil pan structure comprises the dip angle type oil pan arranged at the bottom of an engine body. The dip angle oil pan is used for sealing the bottom face of an engine body and storing engine oil. A first oil storage tank and a second oil storage tank which are vertically communicated are formed in the bottom of the inclined oil pan in the first direction. The included angle between the plane where the bottom wall of the first oil storage groove is located and the plane where the side wall of the second oil storage groove is located is an obtuse angle. According to the dip angle oil pan, the structure is optimized, when an excavator inclines and shakes due to rapid acceleration or sharp turning of an excavator, flowing engine oil flows along the bottom walls and the side walls of the first oil storage groove and the second oil storage groove, the included angle between the bottom wall of the first oil storage groove and the side wall of the second oil storage groove is an obtuse angle, and the groove walls of the first oil storage groove and the second oil storage groove are streamlined; turbulence can be prevented, and therefore engine oil agitation is relieved. When the inclination angle of the excavator body is smaller than 35 degrees, the oil suction pipe normally sucks oil, and the working condition requirement of the excavator is met.

Description

Technical Field

[0001] The present application relates to the technical field of engines, and in particular to an inclined oil pan structure and an engine having the inclined oil pan. Background Art

[0002] The oil pan plays a vital role in the diesel engine lubrication system. It is not only the storage and recovery place for lubricating oil, but also the starting point for the oil pump to suck oil.

[0003] When the vehicle body makes sharp turns, changes gears, or tilts, the oil level will change accordingly. If the oil suction port of the oil pump leaks above the oil level, the entire diesel engine lubrication system will stop working because it cannot absorb oil.

[0004] To ensure a continuous and stable lubricating oil supply, the oil pan's structural design must account for a variety of operating conditions. For example, in actual excavator use, the oil pan must be able to absorb oil even when the vehicle body is tilted at a 35° angle, and must minimize oil level fluctuations during acceleration and deceleration.

[0005] Therefore, in order to ensure that the lubrication system can absorb oil normally under the working condition of an excavator, the present application provides an inclined oil pan and an engine structure with an inclined oil pan. Utility Model Content

[0006] In order to overcome the problems existing in the related art, the present application provides an inclined oil pan structure, including an inclined oil pan arranged at the bottom of an engine body; the inclined oil pan is used to close the bottom surface of the engine body and store engine oil; the direction of the engine body toward the inclined oil pan is a first direction; the bottom of the inclined oil pan is provided with a first oil storage tank and a second oil storage tank connected up and down along the first direction; the projected area of ​​the second oil storage tank in the first direction is smaller than the projected area of ​​the first oil storage tank; the angle between the plane where the bottom wall of the first oil storage tank is located and the plane where the side wall of the second oil storage tank is located is an obtuse angle.

[0007] In one embodiment, the inclined oil pan is an axisymmetric structure on both sides of the first direction.

[0008] In one embodiment, an oil dipstick through hole is provided on a side wall of the first oil storage tank.

[0009] In one embodiment, the angle of the bottom wall between the planes where the side wall and the bottom wall are located is a rounded angle.

[0010] In one embodiment, it comprises a cylinder block, a cylinder liner and the inclined oil pan;

[0011] The cylinder liner cover is arranged on the top surface of the cylinder block, and the cylinder liner is used to seal the top of the cylinder block; the inclined oil pan is attached to the bottom surface of the cylinder block; the inclined oil pan is used to seal the bottom of the cylinder block and to store engine oil for lubricating the crankshaft.

[0012] In one embodiment, the cylinder block includes a cylinder body, a piston-connecting rod assembly, and a crankshaft assembly; a lubricating oil groove is provided on the piston-connecting rod bushing of the piston-connecting rod assembly.

[0013] In one embodiment, a centrally mounted turbocharger is also included.

[0014] In one embodiment, the oil inlet of the turbocharger is arranged at the top in the first direction, and the oil outlet is arranged at the bottom in the first direction.

[0015] In one embodiment, the angle between the rotating shaft of the turbocharger and the horizontal plane is less than 10 degrees, and the angle between the oil outlet and the first direction is less than 35 degrees.

[0016] The technical solution provided by this application may have the following beneficial effects:

[0017] The angled oil pan described in this application features an optimized structure. When the excavator tilts or sways during rapid acceleration or sharp turns, the oil flows along the bottom and side walls of the first and second oil reservoirs. The angle between the bottom wall of the first and side walls of the second is obtuse, resulting in streamlined troughs that prevent turbulence and reduce oil agitation. Furthermore, the oil suction pipe operates normally when the vehicle tilts less than 35 degrees, meeting the operating requirements of the excavator.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 This is a front view of an engine with an angled oil pan shown in an embodiment of the present application;

[0021] Figure 2 A three-dimensional schematic diagram of an inclined oil pan shown in an embodiment of the present application;

[0022] Figure 3 This is a front view of a turbocharger according to an embodiment of the present application;

[0023] Figure 4 This is a schematic axial cross-sectional view of a piston-connecting rod assembly according to an embodiment of the present application;

[0024] Inclined oil pan 1, first oil storage tank 10, second oil storage tank 11, cylinder block 2, cylinder liner 3, turbocharger 4, oil inlet 40, oil outlet 41, piston connecting rod bushing 5, lubricating oil tank 50. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0026] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0027] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Example 1

[0029] In the actual use scenario of the excavator, the oil pan needs to meet the requirement of being able to absorb oil normally when the vehicle body is tilted at 35°, and the requirement of small shaking of the oil level during acceleration and deceleration.

[0030] Therefore, in order to ensure that the lubrication system can absorb oil normally under the working condition of the excavator, the embodiment of the present application provides a method as follows: Figure 1 The inclined oil pan structure shown.

[0031] Specifically, the angled oil pan is located at the bottom of the engine block. The angled oil pan 1 is used to seal the bottom of the engine block and store engine oil. The sidewall of the first oil reservoir 10 is provided with an oil dipstick hole for inserting an oil dipstick to check the oil level.

[0032] Specifically, the direction from the engine body toward the inclined oil pan 1 is the first direction. Figure 2 As shown, a first oil storage tank 10 and a second oil storage tank 11 connected up and down are provided at the bottom of the inclined oil pan 1 along the first direction; the projected area of ​​the second oil storage tank 11 in the first direction is smaller than the projected area of ​​the first oil storage tank 10.

[0033] On both sides of the first direction, the inclined oil pan 1 is an axially symmetrical structure along the first direction.

[0034] For example, Figure 2 As shown, on the projection plane along the first direction, the projected areas of the second oil storage tank 11 and the first oil storage tank 10 are both rounded rectangles, and the projected rectangle of the second oil storage tank 11 is in the middle of the projected rectangle of the first oil storage tank 10, the major axes and minor axes of the two coincide, and the heights of the two projected rectangles are equal.

[0035] In this embodiment of the present application, the bottom wall of the first oil tank 10, at one end thereof that connects to the second oil tank 11, is inclined in a first direction, while the sidewalls of the second oil tank 11 are inclined in an opposite direction. Therefore, the connection between the bottom wall of the first oil tank 10 and the sidewalls of the second oil tank 11, and between the sidewalls of the second oil tank 11 and the bottom wall of the second oil tank 11, forms a rounded angle greater than 90 degrees.

[0036] The angled oil pan 1 shown in this embodiment of the present application features an optimized structure. When the excavator accelerates rapidly or makes a sharp turn, causing the vehicle body to tilt and sway, the flowing oil flows along the bottom and side walls of the first oil reservoir 10 and the second oil reservoir 11. The angle between the bottom wall of the first oil reservoir and the side walls of the second oil reservoir is obtuse, and the streamlined shape of the two reservoir walls prevents turbulence and reduces the degree of oil agitation. Furthermore, when the vehicle body tilts less than 35 degrees, the oil suction pipe operates normally, meeting the operating requirements of the excavator.

[0037] Example 2

[0038] Based on the inclined oil pan of the first embodiment, the present application also provides an engine having the inclined oil pan.

[0039] like Figure 1As shown, an engine structure with an inclined oil pan shown in an embodiment of the present application includes a cylinder block 2, a cylinder liner 3 and the inclined oil pan 1 described in the first embodiment.

[0040] The cylinder liner 3 is covered on the top surface of the cylinder block 2, and the cylinder liner 3 is used to seal the top of the cylinder block 2; the inclined oil pan 1 is attached to the bottom surface of the cylinder block 2; the inclined oil pan 1 is used to seal the bottom of the cylinder block 2 and to store engine oil for lubricating the crankshaft.

[0041] Specifically, the cylinder block 2 includes a cylinder block, a piston connecting rod assembly and a crankshaft assembly. Figure 4 As shown, in order for the engine oil to better lubricate the movable connection structure between the piston and the piston connecting rod, a lubricating oil groove 50 is provided on the piston connecting rod bushing 5 of the piston connecting rod assembly in the embodiment of the present application.

[0042] In the embodiment of the present application, the lubricating oil groove 50 is provided at the connection position between the piston connecting rod and the piston, and on the axial cross section of the connecting rod assembly, the lubricating oil groove is as follows: Figure 4 As shown, it is C-shaped and can better intercept the lubricating oil flowing through.

[0043] Furthermore, the engine structure with the inclined oil pan also includes: Figure 3 The centrally mounted turbocharger 4 is shown.

[0044] In this embodiment of the present application, to ensure the proper functioning of the lubrication system of the turbocharger 4, the oil inlet of the turbocharger 4 is located at the top of the first direction, and the oil outlet is located at the bottom of the first direction. Furthermore, the angle between the rotating shaft of the turbocharger 4 and the horizontal plane is less than 10 degrees, and the angle between the oil outlet and the first direction is less than 35 degrees.

[0045] When the turbocharger 4 is operating, exhaust gas from the engine exhaust pipe enters the turbine. The energy in the exhaust gas pressure causes the turbine to rotate, which in turn drives the compressor, which is coaxial with the turbine. The compressor draws in and compresses air, which is then piped into the intercooler for cooling before entering the engine intake pipe. Exhaust gas leaving the turbine is directed through the turbine housing to the engine exhaust system and into the atmosphere.

[0046] Furthermore, the engine is a 6-cylinder diesel engine. In order to improve the combustion efficiency of the engine, the efficiency of the compression end and the vortex end of the turbocharger is, and the flow parameter is: changed to a compression end efficiency higher than 80%, and the flow parameter is 1.01kg / s at rated power.

[0047] In the excavator working condition, the inclination angle of the rotating shaft of the turbocharger 4 on the horizontal plane is relatively small, which can avoid the obstruction of the oil flow caused by excessive tilt of the vehicle body.

[0048] Various embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments.

[0049] Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein is selected to best explain the principles of the various embodiments, their practical applications, or improvements to the technology in the marketplace, or to enable other persons skilled in the art to understand the various embodiments disclosed herein.

Claims

1. An angled oil pan structure, characterized in that: It comprises an inclined oil pan (1) arranged at the bottom of the engine body; The inclined oil pan (1) is used to seal the bottom surface of the engine body and store engine oil; The direction from the engine body toward the inclined oil pan (1) is defined as a first direction; A first oil storage tank (10) and a second oil storage tank (11) are provided at the bottom of the inclined oil pan (1) along the first direction, the first oil storage tank (10) and the second oil storage tank (11) being connected to each other in an upper and lower direction; the projected area of ​​the second oil storage tank (11) in the first direction is smaller than the projected area of ​​the first oil storage tank (10); The angle between the plane where the bottom wall of the first oil storage tank (10) is located and the plane where the side wall of the second oil storage tank (11) is located is an obtuse angle.

2. The angled oil sump structure according to claim 1, characterized in that: The inclined oil pan (1) has an axisymmetric structure on both sides of the first direction.

3. The angled oil sump structure according to claim 1, characterized in that: An oil dipstick through hole is provided on the side wall of the first oil storage tank (10).

4. The angled oil pan structure according to claim 2, characterized in that: The angle of the bottom wall between the planes where the side wall and the bottom wall are located is a rounded angle.

5. An engine with an inclined oil pan, characterized in that: It comprises a cylinder block (2), a cylinder liner (3) and the inclined oil pan (1) according to any one of claims 1 to 4; The cylinder liner (3) is covered on the top surface of the cylinder block (2), and the cylinder liner (3) is used to seal the top of the cylinder block (2); the inclined oil pan (1) is attached to the bottom surface of the cylinder block (2); The inclined oil pan (1) is used to seal the bottom of the cylinder block (2) and to store engine oil for lubricating the crankshaft.

6. The engine with an inclined oil pan according to claim 5, characterized in that: The cylinder block (2) comprises a cylinder body, a piston-connecting rod assembly and a crankshaft assembly; A lubricating oil groove (50) is provided on the piston connecting rod bushing (5) of the piston connecting rod assembly.

7. The engine with an inclined oil pan according to claim 5, characterized in that: Also included is a centrally mounted turbocharger (4).

8. The engine with an inclined oil pan according to claim 7, characterized in that: The oil inlet (40) of the turbocharger (4) is arranged at the top of the first direction, and the oil outlet (41) is arranged at the bottom of the first direction.

9. The engine with an inclined oil sump according to claim 7, characterized in that: The included angle between the rotating shaft of the turbocharger (4) and the horizontal plane is less than 10 degrees, and the included angle between the oil outlet and the first direction is less than 35 degrees.

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