An oil pan lubrication structure capable of working at a large inclination angle

Abstract

The invention discloses an oil pan lubrication structure that meets the requirements of large inclination angle operation, and belongs to the field of engine lubrication technology. The structure comprises an oil pan installed on a diesel engine crankcase to store lubricating oil, a first oil suction pipe connected to a pressure oil pump, an oil return pipe connected to an oil return pump, a second oil suction pipe connected to the oil return pump, an oil return pump that transports lubricating oil from an oil storage chamber of the oil pan to a compartment of the oil pan, and an oil pressure pump that sucks oil from the compartment of the oil pan to supply lubricating oil to the diesel engine; the oil return pump and the oil pressure pump are both installed inside the diesel engine. The invention provides a compartment-type shallow oil pool oil pan with a height H of only 180 mm and a lubrication structure in which a pressure oil pump and an oil return pump cooperate, so that the vehicle can travel on a road with a large inclination angle without adding an external lubricating oil tank, and when the longitudinal size of the diesel engine is limited and the diesel engine cannot be installed with an oil pan with a deep oil pool.

Description

Technical Field

[0001] The invention relates to the technical field of engine lubrication, in particular to an oil sump lubrication structure that can work at a large inclination angle. Background Art

[0002] With the development of technology and the increase of functions, the installation space requirements of automotive diesel engines are increasingly moving towards high compactness. In order to meet the requirements of vehicles driving on roads with large inclination angles, one method is to use a dry oil sump and add an external lubricating oil tank; another method is to use a wet oil sump with a deep oil pool.

[0003] Although the existing technology has solved the problem that diesel engines can meet the needs of vehicles traveling on roads with large inclination angles, due to technological development, vehicles are required to have higher integration and compactness. The two existing methods require a larger space for installing the diesel engine in the vehicle. If the vehicle compresses the space for installing the diesel engine, it will result in the inability to install an external lubricating oil tank for the diesel engine, or the inability to install a wet oil pan with a deep oil pool. Summary of the invention

[0004] The technical problem to be solved by the invention is to provide an oil pan lubrication structure that can meet the requirements of large inclination angle operation, so that the vehicle can drive on roads with large inclination angles without adding an external lubricating oil tank, and when the longitudinal dimension of the diesel engine is limited and the diesel engine cannot be installed with an oil pan with a deep oil pool.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An oil pan lubrication structure that meets the requirements of large inclination angle operation includes an oil pan installed on a diesel engine crankcase to store lubricating oil, an oil suction pipe 1 connected to an oil pressure pump, an oil return pipe connected to an oil return pump, an oil suction pipe 2 connected to the oil return pump, an oil return pump that transports lubricating oil from an oil storage chamber of the oil pan to a compartment of the oil pan, and an oil pressure pump that sucks oil from the compartment of the oil pan to supply lubricating oil to the diesel engine; the oil return pump and the oil pressure pump are both installed inside the diesel engine.

[0007] A further improvement of the technical solution of the present invention is that the oil pan includes a compartment for storing lubricating oil, an oil storage chamber for storing lubricating oil, an oil dipstick mounting device installed at the upper part of one end of the compartment for convenient observation of the lubricating oil level in the oil pan, a connecting pipe arranged at the bottom of the oil pan to connect the compartment and the oil storage chamber, and an oil drain device installed at the bottom of the oil storage chamber.

[0008] A further improvement of the technical solution of the present invention is that the oil pan is a compartment-type shallow oil pool structure.

[0009] A further improvement of the technical solution of the present invention is that the height H of the oil pan is 180 mm.

[0010] A further improvement of the technical solution of the present invention is that the amount of lubricating oil required by the diesel engine is 36L.

[0011] A further improvement of the technical solution of the present invention is that an oil filter is installed at the end of the oil suction pipe arranged in the compartment.

[0012] A further improvement of the technical solution of the present invention is that an oil filter is installed at the end of the second oil suction pipe arranged in the oil storage chamber.

[0013] A further improvement of the technical solution of the present invention is that the oil suction pipe is connected to the oil pressure pump by bolts.

[0014] A further improvement of the technical solution of the present invention is that both the oil return pipe and the oil suction pipe are connected to the oil return pump by bolts.

[0015] A further improvement of the technical solution of the present invention is that the oil storage chamber is vertically arranged with the compartment, the oil storage chamber is connected with the middle upper part of the compartment as a whole, and the total height is 180 mm.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is:

[0017] 1. The present invention mainly enables the vehicle diesel engine to adopt a compartment-type shallow oil pool oil pan lubrication structure to meet the diesel engine's high-angle use conditions. When the space for installing the diesel engine on the vehicle is limited, it is impossible to install an external lubricating oil tank, and it is impossible to use an oil pan with a deep oil pool. When the vehicle is traveling on a road with a large inclination angle, the lubrication system of the diesel engine will have a phenomenon of poor lubricating oil supply, causing diesel engine failure; the compartment-type shallow oil pool oil pan with a height H of only 180mm and a lubrication structure coordinated with an oil pressure pump and an oil return pump can meet the diesel engine lubrication system The normal operation of the vehicle when the vehicle is traveling on a road with a large inclination angle.

[0018] 2. Compared with the dry oil sump, the present invention does not need to install an external lubricating oil tank, reduces pipeline connections, and improves vehicle reliability.

[0019] 3. Compared with the wet oil pan, the height of the present invention is reduced, which can reduce the space for installing the diesel engine and improve the maneuverability and compactness of the vehicle.

[0020] 4. The structural design of the present invention can reduce the amount of lubricating oil required by the diesel engine to only 36L, and the structure is simple and the function is easy to realize. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the lubrication system of the present invention;

[0022] Figure 2 It is a top view of the lubrication system structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the oil pan structure in the present invention;

[0024] Figure 4 It is a diagram simulating the diesel engine's flat-ground driving condition;

[0025] Figure 5 It is a schematic diagram simulating the diesel engine working condition of 32° pitch;

[0026] Figure 6 It is a schematic diagram of the second working condition simulating a diesel engine with a pitch of 32°;

[0027] Figure 7 This is a schematic diagram simulating a diesel engine tilting 20° condition;

[0028] Figure 8 This is a schematic diagram simulating the diesel engine's 20° tilt condition 2.

[0029] Among them, 1. oil pan, 1-1. compartment, 1-2. oil storage chamber, 1-3. dipstick installation device, 1-4. connecting pipe, 1-5. oil drain device, 2. oil suction pipe 1, 3. oil return pipe, 4. oil suction pipe 2, 5. oil return pump, 6. oil pressure pump. DETAILED DESCRIPTION

[0030] The present invention is aimed at solving the problem in the prior art that a diesel engine can meet the needs of vehicles traveling on roads with large inclination angles. A large space is required for installing the diesel engine on the vehicle. If the vehicle compresses the space for installing the diesel engine, it will lead to the inability to install an external lubricating oil tank for the diesel engine, or the inability to install a wet oil pan with a deep oil pool. Therefore, a compartment-type shallow oil pool oil pan lubrication structure that can meet the needs of working at large inclination angles is developed.

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0032] like Figure 1 As shown, an oil pan lubrication structure that meets the requirements of large inclination angle operation includes an oil pan 1 installed on a diesel engine crankcase to store lubricating oil, an oil suction pipe 2 connected to an oil pressure pump 6, an oil return pipe 3 connected to an oil return pump 5, an oil suction pipe 4 connected to the oil return pump 5, an oil return pump 5 for conveying lubricating oil from an oil storage chamber 1-2 of the oil pan 1 to a compartment 1-1 of the oil pan 1, and an oil pressure pump 6 for sucking oil from the compartment 1-1 of the oil pan 1 to supply lubricating oil to the diesel engine; the oil return pump 5 and the oil pressure pump 6 are both installed inside the diesel engine.

[0033] like Figure 2As shown, the oil pan 1 includes a compartment 1-1 for storing lubricating oil, an oil storage chamber 1-2 for storing lubricating oil, an oil dipstick mounting device 1-3 installed at the upper part of one end of the compartment 1-1 for convenient observation of the lubricating oil level in the oil pan 1, a connecting pipe 1-4 arranged at the bottom of the oil pan 1 to connect the compartment 1-1 and the oil storage chamber 1-2, and an oil draining device 1-5 installed at the bottom of the oil storage chamber 1-2; the lubricating oil in the compartment 1-1 and the oil storage chamber 1-2 can be drained simultaneously through the connecting pipe 1-4 and the oil draining device 1-5.

[0034] The oil storage chamber 1-2 is vertically arranged with the compartment 1-1, and the oil storage chamber 1-2 is connected with the middle upper part of the compartment 1-1 as a whole, and the total height is 180mm. The height of one end of the oil dipstick installation device 1-3 arranged on the upper part of the compartment 1-1 is less than 180mm; the height of the other end of the compartment 1-1 is also less than 180mm.

[0035] The oil pan 1 is a compartment-type shallow oil pool structure.

[0036] like Figure 3 As shown, the height H of the oil pan 1 is 180 mm.

[0037] The amount of lubricating oil required by the diesel engine is 36 L. Through the above structural arrangement, the amount of lubricating oil required by the diesel engine is reduced.

[0038] The oil suction pipe 2 is arranged at the end inside the compartment 1-1 and an oil filter is installed.

[0039] The oil suction pipe 2 4 is provided at the end thereof in the oil storage chamber 1 - 2 and an oil filter is installed.

[0040] The oil suction pipe 2 is connected to the oil pressure pump 6 by bolts.

[0041] The oil return pipe 3 and the oil suction pipe 2 4 are connected to the oil return pump 5 by bolts. The oil suction pipe 1 2 , the oil return pipe 3 , and the oil suction pipe 2 4 are all arranged inside the oil pan 1 .

[0042] Working principle:

[0043] like Figures 1 to 4 As shown, the working process of the lubrication system of the diesel engine is: the oil pressure pump 6 transports the lubricating oil in the compartment 1-1 of the oil pan 1 to the lubrication system of the diesel engine through the oil suction pipe 2, and the lubricating oil falls back into the oil pan 1 due to its own gravity after passing through various friction pairs of the diesel engine, and the return oil pump 5 sucks the lubricating oil in the oil storage chamber 1-2 of the oil pan 1 into the return oil pipe 3 through the oil suction pipe 24, and the return oil pipe 3 then transports the lubricating oil to the compartment 1-1 of the oil pan 1, ensuring that there is sufficient lubricating oil in the compartment 1-1 of the oil pan 1, so that the oil pressure pump 6 can always transport the lubricating oil to the lubrication system of the diesel engine through the oil suction pipe 2.

[0044] like Figure 5As shown, when the vehicle is traveling on a road with an inclination angle of 32°, the diesel engine is inclined toward the oil pan compartment 1-1, and the oil suction pipe 1-2 is always immersed in the lubricating oil, which can ensure the normal supply of the lubricating oil;

[0045] like Figure 6 As shown, the diesel engine is tilted toward the direction in which the oil pressure pump 6 and the oil return pump 5 are installed, and the lubricating oil in the compartment 1-1 of the oil pan 1 is reduced. The oil return pump 5 sucks the lubricating oil in the oil storage chamber 1-2 of the oil pan 1 into the oil return pipe 3 through the oil suction pipe 2 4, and the oil return pipe 3 then transports the lubricating oil to the compartment 1-1 of the oil pan 1, ensuring that the oil suction pipe 2 is always immersed in the lubricating oil to ensure the normal operation of the lubrication system.

[0046] like Figure 7 , Figure 8 As shown, when the vehicle tilts 20°, the oil suction pipe 2 can always be immersed in the lubricating oil to ensure the normal supply of the lubricating oil.

[0047] In summary, the present invention provides a compartment-type shallow oil sump with a height H of only 180 mm and a lubrication structure that cooperates with an oil pressure pump and an oil return pump, so that the vehicle can travel on a road with a large inclination angle without adding an external lubricating oil tank, and when the longitudinal dimension of the diesel engine is limited and the diesel engine cannot be installed with a deep oil sump.

Claims

1. An oil pan lubrication structure that can work at a large inclination angle, characterized by: The invention comprises an oil pan (1) installed on a crankcase of a diesel engine for storing lubricating oil, an oil suction pipe (2) connected to an oil pressure pump (6), an oil return pipe (3) connected to an oil return pump (5), an oil suction pipe (4) connected to the oil return pump (5), an oil return pump (5) for conveying lubricating oil from an oil storage chamber (1-2) of the oil pan (1) to a compartment (1-1) of the oil pan (1), and an oil pressure pump (6) for sucking oil from the compartment (1-1) of the oil pan (1) to supply lubricating oil to the diesel engine; the oil return pump (5) and the oil pressure pump (6) are both installed inside the diesel engine; The oil pan (1) comprises a compartment (1-1) for storing lubricating oil, an oil storage chamber (1-2) for storing lubricating oil, an oil dipstick mounting device (1-3) mounted on the upper portion of one end of the compartment (1-1) for conveniently observing the lubricating oil level in the oil pan (1), a connecting pipe (1-4) arranged at the bottom of the oil pan (1) to connect the compartment (1-1) and the oil storage chamber (1-2), and an oil drain device (1-5) mounted at the bottom of the oil storage chamber (1-2); The oil pan (1) is a compartment-type shallow oil pool structure; the height H of the oil pan (1) is 180 mm; and the amount of lubricating oil required by the diesel engine is 36 L.

2. The oil pan lubrication structure capable of working at a large inclination angle according to claim 1, characterized in that: The oil suction pipe 1 (2) is arranged at the end of the compartment (1-1) and an oil filter is installed.

3. The oil pan lubrication structure capable of working at a large inclination angle according to claim 1, characterized in that: The oil suction pipe 2 (4) is arranged at the end thereof in the oil storage chamber (1-2) and is provided with an oil filter.

4. The oil pan lubrication structure capable of working at a large inclination angle according to claim 1, characterized in that: The oil suction pipe 1 (2) is connected to the oil pressure pump (6) through bolts.

5. The oil pan lubrication structure capable of working at a large inclination angle according to claim 1, characterized in that: The oil return pipe (3) and the second oil suction pipe (4) are both connected to the oil return pump (5) via bolts.

6. The oil pan lubrication structure capable of working at a large inclination angle according to claim 1, characterized in that: The oil storage chamber (1-2) and the compartment (1-1) are arranged vertically, and the oil storage chamber (1-2) and the middle upper part of the compartment (1-1) are connected as a whole, and the total height is 180 mm.

Images