CN214698081U - Engine cylinder block skirt, engine and vehicle - Google Patents

Abstract

The utility model provides an engine cylinder body skirt frame, an engine and a vehicle, wherein the engine cylinder body skirt frame comprises a skirt frame clapboard and a first connecting part; the first connecting part is arranged on one side, away from the engine crankshaft, of the skirt rack partition plate and is used for being connected with an engine oil pan; the first connecting portion comprises a side wall extending along the thickness direction of the skirt frame partition plate, a containing cavity is formed by the side wall in a surrounding mode, and the containing cavity is used for containing an oil pump. The embodiment of the utility model provides a space between can make full use of engine cylinder body skirt and the engine oil pan realizes the built-in of oil pump and arranges, shortens cylinder body skirt at the axial size of bent axle to the oil pump is closer to the machine oil in the engine oil pan, and oil suction oil circuit is shorter, and the oil absorption is easier.

Description

Engine cylinder block skirt, engine and vehicle

Technical Field

The utility model belongs to the engine field especially relates to an engine cylinder block skirt, engine and vehicle.

Background

The engine, which is a power unit of a vehicle, has its operating efficiency affected to some extent by the lubricating performance.

Currently, in an engine, an oil pump arranged outside a skirt of an engine cylinder block is generally used for sending an oil pump contained in an oil pan to an oil passage of the engine to lubricate each moving part.

However, the inventor finds that the existing oil pump arrangement mode causes the size of the cylinder body skirt frame in the axial direction of the crankshaft to be larger, the engine is inconvenient to install and arrange, the oil suction way of the oil pump is longer, and the oil suction is difficult.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides an engine cylinder body skirt, engine and vehicle, aim at solve at least cylinder body skirt and be on the large side and the oil absorption oil circuit of oil pump is longer at the axial size of bent axle, the problem of oil absorption difficulty.

A first aspect of an embodiment of the present invention provides an engine cylinder block skirt, including a skirt partition plate and a first connecting portion;

the first connecting part is arranged on one side, away from the engine crankshaft, of the skirt rack partition plate and is used for being connected with an engine oil pan;

the first connecting portion comprises a side wall extending along the thickness direction of the skirt frame partition plate, a containing cavity is formed by the side wall in a surrounding mode, and the containing cavity is used for containing an oil pump.

Optionally, the accommodating cavity is provided with four mounting holes;

a feedback oil duct is arranged between one pair of adjacent mounting holes, and an oil outlet oil duct is arranged between the other pair of adjacent mounting holes, wherein the feedback oil duct is used for feeding oil to the oil pump, and the oil outlet oil duct is used for conveying the oil pumped by the oil pump into a main oil duct of the cylinder block.

Optionally, the mounting holes include a first mounting hole, a second mounting hole, a third mounting hole and a fourth mounting hole;

the connecting line of the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole is quadrilateral;

the feedback oil passage and the oil outlet oil passage are respectively arranged on two opposite sides of the quadrangle.

Optionally, a plurality of oil return channels are arranged in the accommodating cavity

Optionally, the engine block skirt further comprises a second connecting portion;

the second connecting part is arranged on one side, away from the engine crankshaft, of the skirt frame partition plate and is used for being connected with a gearbox;

the second connecting portion with first connecting portion set up at an interval side by side, the second connecting portion with be provided with first strengthening rib between the first connecting portion.

Optionally, from the first connecting portion to the second connecting portion, the size of the first reinforcing rib is gradually reduced and then increased along the thickness direction of the skirt frame partition.

Optionally, a second reinforcing rib is arranged in the accommodating cavity, and the second reinforcing rib is arranged on the surface of the skirt rack partition plate.

Optionally, a thickness direction of the second reinforcing bead intersects a thickness direction of the first reinforcing bead.

In a second aspect of the embodiments of the present invention, there is provided an engine comprising any one of the aforementioned engine cylinder block skirts.

A third aspect of the embodiments of the present invention provides a vehicle, which includes any one of the aforementioned engines.

The embodiment of the utility model provides a, through providing an engine cylinder block skirt frame including first connecting portion, this first connecting portion set up in one side that engine crankshaft was kept away from to the skirt frame baffle, are close to in engine oil pan for with engine oil pan. And first connecting portion include the lateral wall that extends along skirt baffle thickness direction, and the lateral wall encloses to close and forms and hold the chamber, holds the chamber and is used for holding the oil pump. Therefore, the space between the engine cylinder body skirt and the engine oil pan can be fully utilized, the built-in arrangement of the oil pump is realized, the size of the engine cylinder body skirt in the axial direction of the crankshaft is shortened, the oil pump is closer to the engine oil in the engine oil pan, the oil suction way is shorter, and the oil suction is easier.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic illustration of an engine cylinder block skirt provided in accordance with an embodiment of the present invention;

FIG. 2 is a view of the engine block skirt of FIG. 1 in the direction A in accordance with an embodiment of the present invention;

FIG. 3 is a view of the engine block skirt of FIG. 1 in the direction B in accordance with an embodiment of the present invention;

FIG. 4 is a view of the engine block skirt of FIG. 1 in the direction of C in accordance with an embodiment of the present invention;

FIG. 5 is a view of the engine block skirt of FIG. 1 in the direction D in accordance with an embodiment of the present invention;

fig. 6 is a view of the engine block skirt of fig. 1 in the direction E of an embodiment of the present invention;

fig. 7 is a view of the engine block skirt of fig. 1 in the direction F in accordance with an embodiment of the present invention.

Description of reference numerals:

the oil pump comprises a skirt rack partition plate-10, a first connecting part-11, a feedback oil channel-12, an oil outlet oil channel-13, an oil return channel-14, a second connecting part-15, a first reinforcing rib-16, a second reinforcing rib-17, a third reinforcing rib-18, an oil pump-20, a containing cavity-111, a mounting hole-112, a first mounting hole-1121, a second mounting hole-1122, a third mounting hole-1123 and a fourth mounting hole-1124.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1 to 7, the present embodiment discloses an engine cylinder block skirt, which includes a skirt partition plate 10 and a first connecting portion 11;

the first connecting part 11 is arranged on one side of the skirt rack partition plate 10 away from the crankshaft of the engine, and the first connecting part 11 is used for being connected with an oil pan of the engine;

the first connecting portion 11 includes a side wall extending in the thickness direction of the skirt partition 10, and the side wall is surrounded to form a receiving cavity 111, and the receiving cavity 111 is used for receiving the oil pump 20.

Particularly, the embodiment of the utility model provides an engine cylinder block skirt. The engine cylinder body skirt is a component for separating an engine cylinder from an oil pan, one side of the engine cylinder body skirt is connected with the bottom surface of the engine cylinder body, and the other side of the engine cylinder body skirt is connected with the oil pan. In an engine, a piston, a connecting rod, a crankshaft and the like are generally installed on the side of an engine cylinder body skirt close to a cylinder body, lubricating oil is contained on the side of the engine cylinder body skirt close to an oil pan, and the engine cylinder body skirt is located in the middle to play a role in connection and separate the cylinder body from the oil pan.

As shown in fig. 1, an engine cylinder block skirt according to an embodiment of the present invention includes a skirt partition plate 10 and a first connecting portion 11. For clarity of illustration of the structure of the engine block skirt, fig. 2-7 also show views of the engine block skirt in different directions. It should be noted that the skirt of the engine cylinder block may be formed by casting and machining in one step, the skirt partition plate 10 and the first connecting portion 11 are of an integral structure, the skirt partition plate 10 is of a flat plate-like structure and has two opposite planes, one plane faces the engine crankshaft side and is used for connecting with the bottom of the engine cylinder block, and the other plane faces the oil pan side and is used for connecting with the oil pan of the engine. The first connecting portion 11 is disposed on a side surface of the skirt spacer 10 away from the engine crankshaft, and the first connecting portion 11 includes a side wall extending in a thickness direction of the skirt spacer 10 toward the oil pan direction, so that the side wall of the first connecting portion 11 encloses to form the receiving cavity 111. The opening of the receiving space 111 facing the oil pan can be connected thereto. The receiving cavity 111 can be used for mounting the oil pump 20.

The embodiment of the utility model provides a, through providing an engine cylinder block skirt frame including first connecting portion, this first connecting portion set up in one side that engine crankshaft was kept away from to the skirt frame baffle, are close to in engine oil pan for with engine oil pan. And first connecting portion include the lateral wall that extends along skirt baffle thickness direction, and the lateral wall encloses to close and forms and hold the chamber, holds the chamber and is used for holding the oil pump. The thickness direction of the skirt partition means a direction in which the engine oil pan side and the engine crankshaft side are connected with each other with reference to the engine, and the dimension of the skirt partition in this direction means the thickness of the skirt partition. Therefore, the space between the engine cylinder body skirt and the engine oil pan can be fully utilized, the built-in arrangement of the oil pump is realized, the size of the engine cylinder body skirt in the axial direction of the crankshaft is shortened, the oil pump is closer to the engine oil in the engine oil pan, the oil suction way is shorter, and the oil suction is easier.

Optionally, referring to fig. 1 and 2, four mounting holes 112 are disposed in the accommodating cavity 111;

a feedback oil passage 12 is arranged between two adjacent mounting holes 112, and an oil outlet oil passage 13 is arranged between the other two adjacent mounting holes 112, wherein the feedback oil passage 12 is used for feeding oil to the oil pump 20, and the oil outlet oil passage 13 is used for conveying the oil pumped by the oil pump 20 to a cylinder block main oil passage.

Specifically, as shown in fig. 2, in one embodiment, when the engine block skirt may be cast by a mold, a boss structure for machining the mounting holes 112 is reserved in the accommodating cavity 111, four mounting holes 112 are machined in the boss structure, and the mounting holes 112 may be blind bolt holes. Illustratively, the four mounting holes 112 are distributed as evenly as possible to ensure load uniformity when the stationary oil pump 20 is mounted. It will be appreciated that the oil pump 20 may utilize a strainer to draw oil from the sump for pumping out from the outlet of the oil pump 20. Therefore, an outlet oil passage 13 communicating with the block main oil passage is also provided in the accommodation chamber 111 to receive the engine oil pumped out from the outlet of the engine oil pump 20. In addition, in order to accurately control the pumping oil amount and the pressure of the oil pump 20, a feedback oil passage 12 is further provided in the housing chamber 111, and the oil pump 20 is fed through the feedback oil passage 12 to adjust the pumping oil amount and the pressure of the oil pump 20. The above-described feedback oil passage 12 and the oil outlet oil passage 13 are each independently provided between adjacent two of the mounting holes 112. On one hand, the complexity of the oil passages can be avoided when the oil passages are arranged in a concentrated mode, on the other hand, when the oil passages are far away from each other, the Vibration influence caused by fluid flow is weaker, and the NVH (Noise, Vibration and Harshness) performance of the engine is more excellent.

Alternatively, referring to fig. 2, the mounting holes 112 include a first mounting hole 1121, a second mounting hole 1122, a third mounting hole 1123, and a fourth mounting hole 1124;

a connecting line of the first mounting hole 1121, the second mounting hole 1122, the third mounting hole 1123 and the fourth mounting hole 1124 is quadrilateral;

the feedback oil passage 12 and the oil outlet oil passage 13 are respectively arranged on two opposite sides of the quadrangle.

Specifically, as shown in fig. 2, in one embodiment, four mounting holes 112, namely a first mounting hole 1121, a second mounting hole 1122, a third mounting hole 1123 and a fourth mounting hole 1124, may be provided in the accommodating cavity 111, and connecting lines of the four mounting holes 112 form a quadrilateral shape, so that the oil pump 20 is mounted and fixed from four points by bolts, which contributes to the mounting reliability of the elevator oil pump 20. The feedback oil duct 12 and the oil outlet oil duct 13 are respectively arranged on two opposite sides of the quadrangle, so that the distance between the feedback oil duct 12 and the oil outlet oil duct 13 is as far as possible, the structural design of the oil pump is facilitated, the integral mode of the oil pump after being installed on the skirt frame can be improved, and the NVH performance can be improved. For example, as shown in fig. 2, feedback oil passage 12 may be provided on a line connecting first mounting hole 1121 and second mounting hole 1122, and oil outlet oil passage 13 may be provided on a line connecting third mounting hole 1123 and fourth mounting hole 1124. Of course, the specific positions of the feedback oil passage 12 and the oil outlet oil passage 13 can be determined according to the structural size of the oil pump 20, and the embodiment of the present invention does not limit this.

Optionally, referring to fig. 2, a plurality of oil return passages 14 are disposed in the accommodating cavity 111.

Specifically, as shown in fig. 2, in one embodiment, in order to smoothly and smoothly return the oil after lubrication, a plurality of oil return passages 14 may be provided in the housing chamber 111. It can be understood that, after the oil pump 20 sucks the oil and sends the oil to the main oil gallery, the main oil gallery delivers the oil to each component to be lubricated, and the lubricated oil flows back into the accommodating cavity 111 through the oil return passage 14, collects in the oil pan, and can continue to be used repeatedly.

Optionally, referring to fig. 2, the engine block skirt further comprises a second connecting portion 15;

the second connecting part 15 is arranged on one side of the skirt rack clapboard 10 far away from the crankshaft of the engine, and the second connecting part 15 is used for being connected with a gearbox;

the second connecting portion 15 and the first connecting portion 11 are arranged in parallel at intervals, and a first reinforcing rib 16 is arranged between the second connecting portion 15 and the first connecting portion 11.

Specifically, as shown in fig. 2, in one embodiment, the engine block skirt further includes a second connecting portion 15, and similarly, the second connecting portion 15, the skirt partition 10, and the first connecting portion 11 may be integrally cast. The second connection 15 has a machined mounting surface and can be used for connection to a gearbox. Like the first connection portion 11, the second connection portion 15 is also provided on the side of the skirt partition 10 away from the engine crankshaft, and the second connection portion 15 is provided in parallel with and spaced apart from the first connection portion 11. A first rib 16 is provided between the second connection portion 15 and the first connection portion 11, and the first rib 16 may be a rib integrally cast with the second connection portion 15 and the first connection portion 11 or a rib welded and fixed thereto. The arrangement of the first reinforcing ribs 16 helps to improve the overall rigidity of the engine cylinder block skirt, avoids deformation and even cracking of the engine cylinder block skirt during operation of the engine, and also helps to improve the NVH performance of the engine.

Alternatively, referring to fig. 3 and 4, the first reinforcing bead 16 may have a size that is gradually decreased from the size toward the second connecting portion 15 along the thickness direction of the skirt spacer 10 from the first connecting portion 11.

Specifically, as shown in fig. 3 and 4, in one embodiment, the first rib 16 has a concave shape, and the middle portion of the first rib 16 is concave with respect to both ends, that is, the height of the first rib 16 in the thickness direction of the skirt spacer 10 is lower at both ends and lower at the middle. The higher parts of the two ends of the first reinforcing rib 16 are respectively connected with the first connecting part 11 and the second connecting part 15 so as to ensure that a sufficient connecting area is provided and the connecting reliability is ensured, and unnecessary material consumption can be saved by sinking the middle part.

Optionally, referring to fig. 2, a second reinforcing rib 17 is arranged in the accommodating cavity 111, and the second reinforcing rib 17 is arranged on the surface of the skirt partition plate 10.

Specifically, as shown in fig. 2, in one embodiment, in order to further increase the rigidity of the first connecting portion 11, a second rib 17 is provided in the accommodating chamber 111, and the second rib 17 is provided on the surface of the skirt spacer 10, so that the second rib 17 forms a support structure in the accommodating chamber 111 to increase the rigidity of the first connecting portion 11 and also contribute to the NVH performance of the engine. Illustratively, when the design size of the second reinforcing rib 17 allows for a larger size, it can also be connected with the inner wall of the accommodating cavity 111 to form a more stable supporting structure.

Alternatively, referring to fig. 2, the thickness direction of the second reinforcing bead 17 intersects with the thickness direction of the first reinforcing bead 16.

Specifically, as shown in fig. 2, in one embodiment, after the first rib 16 is connected to the second connection portion 15 and the first connection portion 11, the thickness direction of the first rib 16 is perpendicular to the line connecting the first connection portion 11 and the second connection portion 15. At this moment, if the thickness direction of the second reinforcing rib 17 is intersected with the thickness direction of the first reinforcing rib 16, the staggered arrangement of the second reinforcing rib 17 and the first reinforcing rib 16 can be realized, so that the stress on the skirt rack partition plate in different directions is more reasonable, and the structural rigidity is favorably improved. Illustratively, the orientation of the second ribs 17 and the orientation of the first ribs 16 may be perpendicular to each other.

Alternatively, referring to fig. 3 and 4, the outer wall of the accommodating chamber 111 is provided with a third reinforcing rib 18.

Specifically, as shown in fig. 3 and 4, in one embodiment, a third rib 18 may be further disposed on an outer wall of the accommodating cavity 111, and by means of the third rib 18 on the outer surface, the rigidity of the first connecting portion 11 may be further improved, the risk of deformation from impact on the outside may be reduced, and the NVH performance of the engine may be improved.

In a second aspect of the embodiments of the present invention, there is provided an engine comprising any one of the aforementioned engine cylinder block skirts.

Particularly, in the embodiment of the utility model provides an in, still through using any kind of above-mentioned engine cylinder block skirt in the engine, can reduce the size of engine in the bent axle direction, the assembly of the engine of being more convenient for to, the oil absorption effect of this kind of engine oil pump is better, and NVH performance is better. It should be noted that, in the embodiment of the present invention, the engine may be a gasoline engine or a diesel engine, and the embodiment of the present invention is not limited thereto.

A third aspect of the embodiments of the present invention provides a vehicle, which includes any one of the aforementioned engines.

The engine provided in any one of the above embodiments can be applied to both passenger vehicles and commercial vehicles, so that the assembly complexity of the engine and other components can be reduced, and the vehicle has excellent NVH performance.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As is readily imaginable to the person skilled in the art: any combination of the above embodiments is possible, and thus any combination of the above embodiments is an embodiment of the present invention, but the present disclosure is not necessarily detailed herein due to space limitations.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (10)

1. An engine block skirt, comprising a skirt partition and a first connection;

the first connecting part is arranged on one side, away from the engine crankshaft, of the skirt rack partition plate and is used for being connected with an engine oil pan;

the first connecting portion comprises a side wall extending along the thickness direction of the skirt frame partition plate, the side wall is enclosed to form a containing cavity, and the containing cavity is used for containing an oil pump.

2. The engine block skirt according to claim 1, wherein mounting holes are provided in the accommodation chamber, the number of the mounting holes being four;

a feedback oil duct is arranged between one pair of adjacent mounting holes, and an oil outlet oil duct is arranged between the other pair of adjacent mounting holes, wherein the feedback oil duct is used for feeding oil to the oil pump, and the oil outlet oil duct is used for conveying the oil pumped by the oil pump into a main oil duct of the cylinder block.

3. The engine block skirt of claim 2, wherein the mounting holes comprise a first mounting hole, a second mounting hole, a third mounting hole, and a fourth mounting hole;

the connecting line of the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole is quadrilateral;

the feedback oil passage and the oil outlet oil passage are respectively arranged on two opposite sides of the quadrangle.

4. The engine block skirt of claim 2, wherein a plurality of oil return passages are provided within the receiving cavity.

5. The engine block skirt of claim 1, further comprising a second connecting portion;

the second connecting part is arranged on one side, away from the engine crankshaft, of the skirt frame partition plate and is used for being connected with a gearbox;

the second connecting portion with first connecting portion set up at an interval side by side, the second connecting portion with be provided with first strengthening rib between the first connecting portion.

6. The engine block skirt according to claim 5, wherein the first bead has a size that decreases from larger to larger in a thickness direction of the skirt spacer from the first connection portion to the second connection portion.

7. The engine block skirt according to claim 5, wherein a second bead is provided in the receiving cavity, and the second bead is provided on a surface of the skirt partition.

8. The engine block skirt according to claim 7, wherein a thickness direction of the second bead intersects a thickness direction of the first bead.

9. An engine, characterized in that it comprises an engine block skirt according to any one of claims 1 to 8.

10. A vehicle characterized by comprising the engine of claim 9.

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