CN112523834A

CN112523834A - Oil pan of engine

Info

Publication number: CN112523834A
Application number: CN202011533859.0A
Authority: CN
Inventors: 杨冰; 陆荣荣; 杨攀; 雷淋森; 胡宏德; 张增光; 丁光辉; 许涛; 阮仁宇; 潘月成; 冯玮玮; 豆刚
Original assignee: Tianjin Terruijie Power Technology Co ltd
Current assignee: Tianjin Terruijie Power Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-03-19

Abstract

The present disclosure provides an engine oil pan, including: the oil baffle plate is fixed in the inner cavity of the shell of the engine oil pan, the inner cavity of the shell is divided into a shell large-end area and a shell small-end area, and most of lubricating oil can be blocked in the shell large-end area by the oil baffle plate, so that the oil suction port can suck oil when the engine oil pan is in an inclined state; the first conduit end of the conduit is fixedly connected with the through hole formed in the oil baffle plate, the first conduit end is provided with a one-way valve enabling lubricating oil to pass through in a one-way mode, and the second conduit end of the conduit extends to the bottom of the large head area of the shell, so that the conduit can enable the lubricating oil in the small head area of the shell to be led into the large head area of the shell through the one-way valve.

Description

Oil pan of engine

Technical Field

The present disclosure relates to the field of engine technology, and more particularly, to an engine oil pan.

Background

The engine needs oil for lubrication during normal operation, and the oil pan is the main oil storage component of the engine. The oil pan profile is dependent on the requirements of the overall vehicle space arrangement in addition to the requirements for the assembly of the engine itself. The oil storage capacity of the oil pan needs to meet the requirement of the engine lubricating oil quantity. The engine lubricating oil has a lubricating effect on the engine and also has a cleaning effect on moving parts, such as residual sand in cast oil holes, carbon deposit and oil sludge on the surfaces of the moving parts, metal or coating scraps generated by abnormal abrasion of the engine parts and the like can be discharged from kinematic pairs through the lubricating oil, and the normal operation of the engine is ensured.

Generally, the oil quantity requirement is guaranteed, and the space arrangement requirement is met, so that how to design the oil pan not only needs to meet the oil quantity requirement, but also needs to make the shape of the oil pan as small as possible, and the oil pan is convenient to arrange in a compact automobile engine cabin.

Disclosure of Invention

Technical problem to be solved

Based on above-mentioned problem, this disclosure provides an engine oil pan to alleviate among the prior art oil pan shell volume great, technical problem such as non-metallic impurity such as fatlute in the lubricating oil can not obtain effective processing.

(II) technical scheme

The present disclosure provides an engine oil pan, including:

the oil baffle plate is fixed in the inner cavity of the shell of the engine oil pan, the inner cavity of the shell is divided into a shell large-end area and a shell small-end area, and most of lubricating oil can be blocked in the shell large-end area by the oil baffle plate, so that the oil suction port can suck oil when the engine oil pan is in an inclined state;

the first conduit end of the conduit is fixedly connected with the through hole formed in the oil baffle plate, the first conduit end is provided with a one-way valve enabling lubricating oil to pass through in a one-way mode, and the second conduit end of the conduit extends to the bottom of the large head area of the shell, so that the conduit can enable the lubricating oil in the small head area of the shell to be led into the large head area of the shell through the one-way valve.

Further, the fixed connection position of the guide pipe and the oil baffle plate is the middle of the bottom side of the small head area of the shell of the oil baffle plate.

In the embodiment of the disclosure, the guide plate is fixedly connected with the oil baffle plate through bolts, so that turbid engine oil which is drained by an engine can be guided to the small-head area of the shell.

In an embodiment of the disclosure, the deflector is made of a metallic material.

In the embodiment of the disclosure, the bottom of the small head area of the shell is provided with an impurity deposition groove which is integrally formed with the small head area of the shell, so that impurities in the lubricating oil can be deposited in the impurity deposition groove.

In the embodiment of the disclosure, the impurity deposition groove is provided with a sewage discharge hole, the sewage discharge hole is provided with an internal thread connected with the bolt, and when the bolt is dismounted, the sewage discharge hole can discharge impurities from the inner cavity of the small head area of the shell.

In an embodiment of the present disclosure, the engine oil pan further includes a bottom orifice plate fixed on the bottom of the large-end area of the housing, and the bottom orifice plate is provided with a through hole for passing the second conduit end therethrough.

In the embodiment of the disclosure, the distance between the bottom orifice plate and the bottom of the large-end area of the shell is 20 mm.

In an embodiment of the disclosure, the bottom orifice plate is made of a metallic material.

In the embodiment of the disclosure, along the first conduit end to the second conduit end, the check valve sequentially includes a conical through hole fixedly connected with the inner wall of the conduit, a conical top of the conical through hole facing the small head area side of the housing, a ball body moving in the conduit and capable of closing the conical through hole, and a m-shaped baffle preventing the ball body from moving to the large head area of the housing and fixedly connected with the inner wall of the conduit.

(III) advantageous effects

According to the technical scheme, the engine oil pan disclosed by the invention has at least one or one part of the following beneficial effects:

(1) the filling amount of the lubricating oil is reduced, and the cost of maintaining and replacing the lubricating oil is reduced;

(2) the risk of sucking the oil suction port of the engine lubricating oil to be empty can be avoided;

(3) the cavity of the oil pan of the engine is reduced, and the oscillation amplitude of lubricating oil is reduced;

(4) the volume of an oil bottom shell of the engine is reduced, and the arrangement of the engine on the whole vehicle is facilitated; and

(5) the metal and the great fatlute impurity in the lubricating oil can be effectively collected and treated, and the filtering efficiency and the lubricating oil cleanliness are improved.

Drawings

FIG. 1 is a diagram illustrating a general state of an engine oil sump in the prior art;

FIG. 2 is a schematic diagram of a prior art engine oil pan housing structure;

FIG. 3 is a schematic diagram illustrating a suction state of an oil suction port of an oil pan of an engine in the prior art;

FIG. 4 is a diagram illustrating a prior art situation in which oil is added to an engine sump;

FIG. 5 is a schematic illustration of increasing the volume of an engine sump housing in the prior art;

FIG. 6 is a perspective view of an engine sump according to an embodiment of the present disclosure;

FIG. 7 is another perspective view of an engine sump according to an embodiment of the present disclosure;

FIG. 8 is a functional schematic diagram of an engine sump according to an embodiment of the disclosure;

FIG. 9 is a perspective view of an engine sump having a baffle plate and an impurity sink in accordance with an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of an engine sump having a baffle and an impurity sink in an embodiment of the present disclosure;

FIG. 11 is a perspective cross-sectional view of an engine oil pan with a bottom orifice plate according to an embodiment of the present disclosure;

FIG. 12 is a schematic illustration of an engine oil pan having a bottom orifice plate according to an embodiment of the disclosure;

FIG. 13 is a schematic view of the internal structure of the check valve of the engine oil pan in the embodiment of the present disclosure;

FIG. 14 is a cross-sectional view of an engine sump check valve according to an embodiment of the present disclosure; and

FIG. 15 is a schematic diagram of a baffle shaped like a Chinese character 'mi' in the check valve of the engine oil pan in the embodiment of the present disclosure.

[ description of main reference numerals in the drawings ] of the embodiments of the present disclosure

1 lubricating oil

2 oil suction port

3 case

4 oil baffle plate

5 catheter

6 first conduit end

7 second conduit end

8 big end area of shell

9 small end area of the shell

10 one-way valve

101 conical through hole

102 sphere

103 m-shaped baffle

11 flow guide plate

12 impurity deposition tank

13 blowoff hole

14 bottom orifice plate

15 conduit hole

Detailed Description

The utility model provides an engine oil pan, engine oil pan can be under the prerequisite of assurance capacity, and volume capacity can avoid the lubricating oil to inhale empty and can effectively filter the engine oil pan of lubricating oil impurity relatively less simultaneously.

In the process of implementing the present disclosure, the inventors found that, in the normal driving process of an automobile, there are different postures of climbing, descending, side direction, etc., and the oil is in a liquid state, and the oil level is always kept horizontal no matter what state the automobile is driven, and the oil pan needs to be designed according to the worst actual condition as a boundary. Usually, the oil pan is designed by taking the maximum inclination posture of the engine of the automobile which inclines by 30 degrees in eight directions of the automobile respectively forwards, backwards, leftwards, rightwards, leftwards, forwards, leftwards, backwards and rightwards. Because the oil suction port is arranged in the cavity of the oil pan, the oil suction port is required to be constantly below the liquid level of lubricating oil (including the limit condition that an automobile inclines 30 degrees in eight directions) so as to ensure that the lubricating oil is sucked into a lubricating oil passage of an engine. Lubricating oil can be consumed properly in the running process of the engine, and the oil storage capacity of the oil pan must be ensured to meet the consumption requirement in a normal maintenance period. In order to prevent the oil stirring phenomenon of the moving parts of the engine, the liquid level of the oil pan is usually not more than 5mm below the lowest point of the moving parts at the highest. The oil pan structure is mostly as shown in fig. 1 and fig. 2, one end is big and the other end is small, the big end is the main oil storage area, the oil suction port is also arranged in this area, and the inner cavity is in a communicating state. When the vehicle inclines to the small end, as shown in fig. 3, most of the lubricating oil 1 is concentrated on the small end, the oil amount of the oil suction part is very small, the oil suction port may be located above the liquid level, and the risk of air suction occurs, and the poor lubrication of the engine can be caused by the air suction of the engine oil, which causes various engine faults. In general, since the amount of the lubricant 1 to be charged is increased in order to ensure that the oil suction port is always below the liquid level of the lubricant 1, the amount of the lubricant 1 to be replaced during engine maintenance is large, as shown in fig. 4. However, when the liquid level of the lubricating oil 1 is close to the moving part, in order to increase the filling amount of the lubricating oil 1 and avoid the oil stirring phenomenon, the depth of an oil pan must be increased, as shown in fig. 5, so that the volume of the engine is increased, and the problem that the engine is interfered in the arrangement of the whole vehicle and even the vehicle cannot be matched is caused. At present, the mode of handling oil pan metal debris is that the oil drain bolt of oil pan bottom has magnetism and can adsorb some metal debris, prevents that tiny metal debris from getting into oil duct and kinematic pair and causing spare part wearing and tearing. However, the above-mentioned techniques have the following technical drawbacks: (1) the filling amount of the lubricating oil is large, and the cost for maintaining and replacing the lubricating oil is high; (2) the engine lubricating oil suction port risks being sucked empty; (3) the oil pan cavity of the engine is large, the lubricating oil vibrates greatly, and more oil gas is generated; (4) the oil bottom shell of the engine has large volume, which is not beneficial to the arrangement of the engine on the whole vehicle. (5) The oil drainage bolt has small magnetism and limited adsorption capacity, and can not completely prevent chips from entering an oil duct; and (6) non-metallic impurities such as oil sludge in the lubricating oil cannot be effectively treated, which affects the filtration efficiency and the cleanliness of the lubricating oil. Therefore the present disclosure provides an engine oil pan, can effectively alleviate above-mentioned problem. For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

In an embodiment of the present disclosure, there is provided an engine oil pan, as shown in fig. 6, 7, and 8, including: the oil baffle plate is fixed in the inner cavity of the shell 3 of the engine oil pan, the inner cavity of the shell 3 is divided into a shell large-end area and a shell small-end area, most of lubricating oil 1 can be blocked in the shell large-end area 8 by the oil baffle plate, and the oil can be sucked by the oil suction port 2 when the engine oil pan is in an inclined state; and a conduit 5, wherein a first conduit end 6 of the conduit is fixedly connected with a through hole arranged on the oil baffle plate 4, the first conduit end 6 is provided with a one-way valve 10 for enabling the lubricating oil 1 to pass through in a one-way mode, and a second conduit end 7 of the conduit extends to the bottom of the large-head area 8 of the shell, so that the conduit 5 can guide the lubricating oil 1 in the small-head area 9 of the shell into the large-head area 8 of the shell through the one-way valve 10.

After the oil baffle plate 4 is additionally arranged on the engine oil pan, most of lubricating oil is blocked in the large-head area 8 of the shell, and when the whole vehicle is at a limit inclination angle, even if part of lubricating oil flows into the small-head area 9 of the shell, as shown in fig. 8, the lubricating oil can not be sucked empty. And the lubricating oil flowing into the small head area 9 of the shell can flow back to the large head area 8 of the shell through the conduit 5 by the one-way valve 10, and the conduit 5 extends to the bottom of the large head area 8 of the shell to help the small amount of impurities remained in the returned lubricating oil to be deposited at the bottom.

Further, as shown in fig. 6 and 7, the position where the conduit 5 is fixedly connected with the oil baffle 4 is the middle of the oil baffle 4 at the bottom side of the small head area 9 of the casing.

In the embodiment of the present disclosure, as shown in fig. 9, the engine oil pan further includes a guide plate 11, and the guide plate 11 is fixedly connected to the oil baffle plate 4 by bolts, so as to guide the turbid lubricating oil drained from the engine to the small end region 9 of the housing.

In the disclosed embodiment, the deflector 11 is made of a metallic material.

In the embodiment of the present disclosure, as shown in fig. 9 and 10, an impurity deposition groove 12 formed integrally with the small head region 9 is disposed at the bottom of the small head region 9 of the housing, so that impurities in the lubricating oil can be deposited in the impurity deposition groove 12, wherein heavier impurities such as heavier metal debris or oil sludge are accumulated and deposited in the impurity deposition groove 12, and cleaner lubricating oil flows back to the large head oil absorption region through the conduit 4 via the check valve 10.

In the embodiment of the present disclosure, as shown in fig. 9 and 10, the impurity precipitation tank 12 is provided with a drain hole 13, the drain hole 13 has an internal thread connected with a bolt, and in a bolt-off state, the drain hole 13 can discharge impurities from the inner cavity of the small-head region 9 of the housing.

In the disclosed embodiment, as shown in fig. 11 and 12, the engine oil pan further includes a bottom orifice plate 14 fixed above the bottom of the large-end area 8 of the housing, and the bottom orifice plate is provided with a conduit hole 15 for passing the second conduit end 7.

In the disclosed embodiment, the bottom orifice plate 14 is spaced 20mm from the bottom of the large head region 8 of the housing.

In the disclosed embodiment, the bottom orifice plate 14 is made of a metallic material.

In the embodiment of the present disclosure, as shown in fig. 7, 13, 14 and 15, the check valve 10 sequentially includes, along the first conduit end 6 to the second conduit end 7, a tapered through hole 101 fixedly connected to the inner wall of the conduit 5, a ball 102 movable in the conduit 5 and capable of closing the tapered through hole, and a mitre-shaped baffle 103 preventing the ball 102 from moving to the large end region 8 of the housing and fixedly connected to the inner wall of the conduit 5, wherein a vertex of the tapered through hole 101 faces the small end region 9 side of the housing.

When the pressure of the small-head area 9 side of the shell of the check valve 10 is larger, the ball body in the check valve 10 moves to the large-head area 8 side of the shell under the pushing action of the lubricating oil 1 and is limited by the Mi-shaped baffle 103, the tapered through hole of the small-head area 9 side of the shell is opened, the lubricating oil flows back to the large-head area 8 side of the shell, when the pressure of the large-head area 8 side of the shell of the check valve 10 is larger, the ball body 102 moves to the small-head area 9 side of the shell under the pushing action of the lubricating oil 1, the tapered through hole 101 is blocked by the ball body 102, and the lubricating oil 1 cannot flow to the small-head area.

So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Further, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by those of ordinary skill in the art.

From the above description, those skilled in the art should clearly recognize an engine oil pan according to the present disclosure.

In conclusion, the present disclosure provides an engine oil pan, and the structure of the engine oil pan ensures that lubricating oil is mainly concentrated in the large end area of the housing, and the phenomenon of air suction does not occur, thereby solving the problem that the lubricating oil quantity requirement and the matching of the vehicle machine are contradictory. The guide plate leads the cloudy machine oil that the engine drenched and drips to the casing microcephaly region, and impurity in the lubricating oil is deposit in the sedimentation tank, and relatively clear lubricating oil flows back to the casing macrocephaly region through the check valve and recycles, and impurity such as sedimentary fatlute can be discharged the casing through the blowoff hole when maintenance.

It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.

And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Unless otherwise indicated, the numerical parameters set forth in the specification and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by the present disclosure. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". Generally, the expression is meant to encompass variations of ± 10% in some embodiments, 5% in some embodiments, 1% in some embodiments, 0.5% in some embodiments by the specified amount.

Furthermore, 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 use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.

In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

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. Also in the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the disclosure 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 disclosed aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed 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 disclosure.

The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. An engine oil pan comprising:

2. The engine oil pan of claim 1, wherein the location of fixed connection of the conduit to the oil deflector is at the middle of the bottom side of the small end region of the casing of the oil deflector.

3. The engine oil pan of claim 1, further comprising a guide plate fixedly connected with the oil baffle plate by bolts, wherein turbid engine oil drained by the engine can be guided to the small-head area of the shell.

4. The engine oil pan of claim 3, wherein the baffle is made of a metallic material.

5. The engine oil pan according to claim 1, wherein the bottom of the small end area of the housing is provided with an impurity deposition groove which is formed integrally with the small end area of the housing, and impurities in the lubricating oil can be deposited in the impurity deposition groove.

6. An engine oil pan according to claim 3 wherein the impurity deposition groove is provided with a drain hole having an internal screw thread for attachment to a bolt, the drain hole being capable of draining impurities from the internal cavity of the small head region of the housing in a state in which the bolt is removed.

7. The engine oil pan of claim 1, further comprising a bottom orifice plate secured over the bottom of the large end area of the housing, the bottom orifice plate being provided with a through hole for passing the second conduit end therethrough.

8. The engine oil pan of claim 7, wherein the bottom orifice plate is 20mm from the bottom of the large end area of the housing.

9. The engine oil pan of claim 7, wherein the bottom orifice plate is made of a metallic material.

10. The engine oil pan according to any one of claims 1 to 9, wherein, along the first pipe end to the second pipe end, the check valve comprises, in order, a tapered through hole fixedly connected to the inner wall of the pipe and having a tapered tip facing a small-end region side of the casing, a ball movable within the pipe and capable of closing with the tapered through hole, and a Mi-shaped baffle preventing the ball from moving toward a large-end region of the casing and fixedly connected to the inner wall of the pipe.