CN214403789U

CN214403789U - Crankcase assembly and vehicle

Info

Publication number: CN214403789U
Application number: CN202120319318.1U
Authority: CN
Inventors: 赵运海; 窦世萌; 白奎; 孙秀毅; 王瑞平; 肖逸阁
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Royal Engine Components Co Ltd; Zhejiang Geely Power Train Co Ltd; Yiwu Geely Powertrain Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Royal Engine Components Co Ltd; Zhejiang Geely Power Train Co Ltd; Yiwu Geely Powertrain Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-15
Anticipated expiration: 2031-02-04

Abstract

The utility model provides a crankcase assembly and vehicle. The crankcase assembly comprises a crankcase body and an oil pan connected with the crankcase body, wherein the crankcase body comprises a shell, an oil baffle plate and a plurality of baffle ribs; the oil baffle plate is positioned in the shell and divides the shell into an upper volume cavity and a lower volume cavity communicated with the upper volume cavity, the lower volume cavity is used for containing engine oil, and the plurality of blocking ribs are arranged in the lower volume cavity. According to the utility model discloses a scheme is through setting up a plurality of fenders muscle in the lower volume intracavity that is used for splendid attire machine oil, can cut apart machine oil, prevents that machine oil from acutely fluctuating, thereby can avoid machine oil to throw away and climb on the crankcase lateral wall on the one hand, and on the other hand can reduce machine oil air content.

Description

Crankcase assembly and vehicle

Technical Field

The utility model relates to an engine technical field of vehicle especially relates to a crankcase assembly and vehicle.

Background

The existing engine crankcase has an insert type cast aluminum crankcase structure, an upper part is connected with a cylinder body in a tapping mode, and a lower part is connected with a cast aluminum oil pan or a stamping oil pan in a tapping mode. In order to guarantee that the engine oil can smoothly flow back to the crankcase and the oil pan, the problem that the air content of the engine oil is large due to severe splashing of the engine oil is avoided, and the whole vehicle can smoothly absorb the oil under the large-inclination working condition is guaranteed, an oil baffle needs to be additionally arranged at the bottom of the crankcase, and the crankcase and the oil pan are designed in a complex mode.

However, the above-described technique has several problems:

1) the crankcase and the oil baffle plate belong to two parts, the number of the parts is large, the assembly process is complex and the cost is high;

2) when the whole vehicle is in severe working conditions such as large inclination and the like, an oil baffle plate which completely covers the bottom of a crankcase and a deep concave structure designed on an oil pan are needed to ensure oil absorption in order to absorb engine oil;

3) in order to ensure that the air content of the engine oil adsorbed by the strainer from the bottom of the oil pan is the lowest, the existing design can not ensure that the engine oil directly returns to the position below the liquid level of the engine oil so as to reduce the air content of the engine oil;

4) when the whole vehicle fluctuates greatly, engine oil also fluctuates greatly, so that the gas content is increased, and the existing design needs an oil baffle plate and an oil pan to be provided with corresponding complex structures;

5) the oil baffle plate is generally a stamping part and is connected by using bolts, the connection rigidity is general, the capability of intercepting radiation noise is general, and the surface area of the oil pan is large, so that the radiation noise on the surface of the oil pan is large.

SUMMERY OF THE UTILITY MODEL

One purpose of the utility model is to avoid the engine oil from fluctuating greatly when the whole vehicle jolts greatly;

a further object of the utility model is to avoid oil return and air mixing to be brought into in the machine oil.

It is yet a further object of the present invention to attenuate the transfer of vibration noise from the crankshaft section.

Particularly, the utility model provides a crankcase assembly, including the crankcase body and with the oil pan of crankcase body coupling together, the crankcase body includes casing, oil baffle and a plurality of fender muscle;

the oil baffle plate is positioned in the shell and divides the shell into an upper volume cavity and a lower volume cavity communicated with the upper volume cavity, the lower volume cavity is used for containing engine oil, and the plurality of blocking ribs are arranged in the lower volume cavity.

Optionally, the plurality of barrier ribs are interwoven with one another.

Optionally, the volume of the lower volume chamber is smaller than the volume of the upper volume chamber.

Optionally, the crankcase body further comprises:

the first oil return passage penetrates through the oil baffle plate, and two ends of the first oil return passage are respectively communicated with the lower volume cavity and a first return port of the engine cylinder body so as to guide return oil returned from the first return port to the lower volume cavity;

one end of the second oil return channel is communicated with a second return port of the engine cylinder body, and the other end of the second oil return channel is arranged on the oil baffle plate and is blocked by the oil baffle plate;

the oil return hole is formed in the oil baffle plate and used for guiding return oil of the second oil return channel to the lower volume cavity; and

and the drainage groove is arranged between the second oil return channel and the at least one oil return hole and is used for draining the oil returned through the second oil return channel.

Optionally, one end of the first oil return passage extends downward to a first predetermined height of the lower volume chamber.

Optionally, one end of each oil return hole extends downwards to a second preset height of the lower volume chamber.

Optionally, the housing and the oil deflector are constructed as a one-piece casting.

Optionally, the plurality of oil baffle ribs are integrated on the oil baffle plate.

In particular, the utility model also provides a vehicle, includes such as aforementioned crankcase assembly.

According to the utility model discloses a scheme is through setting up a plurality of fenders muscle in the lower volume intracavity that is used for splendid attire machine oil, can cut apart machine oil, prevents that machine oil from acutely fluctuating, thereby can avoid machine oil to throw away and climb on the crankcase lateral wall on the one hand, and on the other hand can reduce machine oil air content.

The utility model discloses the scheme, through the first predetermined high department with the one end downwardly extending of first time oil duct volume chamber down, with the second predetermined high department of volume chamber down of the one end downwardly extending of every oil gallery, and first height and second highly can guarantee that the oil return can be drained to the machine oil liquid level below of volume intracavity down via first time oil duct or oil gallery, so can make the oil return directly enter into machine oil liquid level below, avoid the oil return to bring into in the machine oil with the air mixing after, thereby further reduce the tolerance in the machine oil, and then influence oil pump oil absorption performance.

Furthermore, all parts in the crankcase body are integrated together, so that the number of parts is reduced, the assembly process is simplified, and the cost of the parts is reduced.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 shows a schematic block diagram of a crankcase body according to an embodiment of the invention;

FIG. 2 shows another schematic block diagram of a crankcase body according to an embodiment of the invention;

in the figure: 1-a crankcase body, 11-a shell, 12-an oil baffle, 13-a blocking rib, 14-an upper volume cavity, 141-a first opening part, 15-a lower volume cavity, 151-a second opening part, 16-a first oil return channel, 17-a second oil return channel, 18-an oil return hole and 19-a drainage groove.

Detailed Description

Fig. 1 shows a schematic block diagram of a crankcase assembly according to an embodiment of the invention. Fig. 2 shows another schematic block diagram of a crankcase assembly according to an embodiment of the invention. As shown in fig. 1 and 2, the crankcase assembly includes a crankcase body 1 and an oil pan (not shown) connected with the crankcase body 1, and the crankcase body 1 includes a housing 11, an oil baffle 12 and a plurality of baffle ribs 13. The oil baffle plate 12 is positioned in the shell 11, and divides the shell 11 into an upper volume cavity 14 and a lower volume cavity 15 communicated with the upper volume cavity 14, the lower volume cavity 15 is used for containing engine oil, and the plurality of baffle ribs 13 are arranged in the lower volume cavity 15.

The vehicle is at the motion in-process, and engine oil can fluctuate along with whole car, through set up a plurality of fenders 13 in the lower volume chamber 15 that is used for splendid attire engine oil, can cut apart engine oil, prevents that engine oil from fluctuating violently, thereby can avoid engine oil to throw away and climb on along the crankcase lateral wall on the one hand, and on the other hand can reduce engine oil air content.

In one embodiment, the number of the retaining ribs 13 may be two, three or more, for example, and a plurality of retaining ribs 13 are interwoven together, so that the engine oil can be prevented from following the whole vehicle to fluctuate violently to the utmost extent, and the engine oil level can be kept as stable as possible.

In one embodiment, the volume of the lower volume 15 is less than the volume of the upper volume 14. The upper volume chamber 14 has a first opening 141, and the lower volume chamber 15 has a second opening 151, and the size of the second opening 151 is smaller than the size of the first opening 141. Under the premise that the volume of the engine oil contained in the lower volume chamber 15 is not changed, the size of the second opening portion 151 is inversely proportional to the height of the lower volume chamber 15, that is, the engine oil with the same volume is contained, when the size of the second opening portion 151 is larger, the height of the lower volume chamber 15 is smaller, and when the size of the second opening portion 151 is smaller, the height of the lower volume chamber 15 is larger.

Preferably, a scheme in which the second opening portion 151 is small in size and the height of the lower volume chamber 15 is large is selected, and the size of the oil pan can be made sufficiently small, that is, the size of the oil pan can be reduced. The size of the oil pan is palm size as a whole. By reducing the size of the second opening portion 151 of the lower volume chamber 15, the size of the oil pan can be reduced as much as possible, the surface area of the oil pan is reduced, and the surface radiation noise of the oil pan is reduced. In addition, according to the scheme, when the liquid level of the engine oil inclines forwards and backwards or leftwards and rightwards, the wall surface of the lower volume cavity 15 with a higher height can prevent the engine oil from flowing to the upper volume cavity 14, so that the engine oil is guaranteed to climb upwards along the wall surface of the lower volume cavity 15 and be thrown out.

Further, the crankcase body 1 further includes a first oil return passage 16, a second oil return passage 17, at least one oil return hole 18 and a drainage groove 19. The first oil return passage 16 penetrates through the oil baffle plate 12, and both ends of the first oil return passage are respectively communicated with the lower volume cavity 15 and a first return port of the engine cylinder body, so that return oil returned from the first return port is guided to the lower volume cavity 15. One end of the second oil return channel 17 is communicated with a second return port of the engine cylinder body, and the other end is arranged on the oil baffle plate 12 and is blocked by the oil baffle plate 12. At least one oil return hole 18 is formed in the oil baffle plate 12 and is used for guiding return oil of the second oil return channel 17 to the lower volume cavity 15. The drainage groove 19 is arranged between the second oil return channel 17 and the at least one oil return hole 18 for draining the return oil via the second oil return channel 17. In one embodiment, the number of the oil return holes 18 may be, for example, one, two, three or more, and may be set as required. The lower volume 15 is normally filled with oil and the drainage groove 19 is normally filled with oil, so as to prevent oil from being left at a position of an oil suction port (not shown in the drawing, a position of the oil suction port close to the oil return hole 18) on the crankcase body 1. The oil pump can pump oil through the oil suction port.

In a preferred embodiment, one end of the first oil return passage 16 extends downward to a first predetermined height of the lower volume chamber 15. One end of each oil return hole 18 extends downward to a second predetermined height of the lower volume chamber 15. The first height and the second height may be the same or different, as long as it is ensured that the return oil can be guided to the lower part of the oil level in the lower volume chamber 15 through the first oil return passage 16 or the oil return hole 18, so that the return oil can directly enter the lower part of the oil level, and the return oil is prevented from being mixed with air and then being brought into the oil, thereby further reducing the air content in the oil and further affecting the oil absorption performance of the oil pump.

Further, the housing 11 and the oil deflector 12 are constructed as an integral cast member. That is, the housing 11 and the oil deflector 12 may be integrally cast. A plurality of ribs 13 are integrated on the oil deflector 12. Compared with the prior art, the utility model, each part is integrated together in the crankcase body 1, has reduced part quantity, has simplified assembly process, has reduced spare part cost.

Moreover, the oil baffle plate 12 may be made of, for example, aluminum, and the scheme of the present application can reduce the transmission of surface radiation noise at a lower cost compared to a separate stamped oil baffle plate 12 in the prior art.

Correspondingly, the utility model also provides a vehicle, this vehicle includes aforementioned crankcase assembly.

Thus far, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications can be made, consistent with the general principles of the invention, as may be directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A crankcase assembly is characterized by comprising a crankcase body and an oil pan connected with the crankcase body, wherein the crankcase body comprises a shell, an oil baffle plate and a plurality of baffle ribs;

2. The crankcase assembly of claim 1, wherein the plurality of retaining ribs are interwoven with one another.

3. The crankcase assembly of claim 1, wherein a volume of the lower volume chamber is less than a volume of the upper volume chamber.

4. The crankcase assembly of claim 1, wherein the crankcase body further comprises:

5. The crankcase assembly of claim 4, wherein an end of the first oil return passage extends downward to a first predetermined height of the lower volume cavity.

6. The crankcase assembly of claim 4, wherein an end of each oil return hole extends downwardly to a second predetermined height of the lower volume chamber.

7. The crankcase assembly of any of claims 1-6, wherein the housing and the oil deflector are configured as a one-piece casting.

8. The crankcase assembly of claim 7, wherein the plurality of oil bars are integrated into the oil deflector.

9. A vehicle comprising a crankcase assembly according to any one of claims 1-8.