CN215949670U

CN215949670U - Engine cover

Info

Publication number: CN215949670U
Application number: CN202122406310.1U
Authority: CN
Inventors: 李伟; 钱懿; 周旸; 钱智; 顾嘉豪
Original assignee: Changshu Entech Plastic Auto Parts Co ltd
Current assignee: Changshu Entech Plastic Auto Parts Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-04
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to an engine cover, which comprises a cover body with a front surface and a back surface, wherein the back surface of the cover body is inwards sunken to form a groove; the first inner circumferential surface and the second inner circumferential surface are oppositely arranged; the first inner peripheral surface or the second inner peripheral surface is provided with a first mounting hole for placing an ignition coil. The engine cover provided by the utility model is provided with the mounting area, so that an oil rail or other parts can be conveniently mounted, the spatial arrangement is optimized, and the engine cover is more compact; the best oil-gas separation effect can be realized under different loads.

Description

Engine cover

Technical Field

The utility model relates to the technical field of engine covers, in particular to an engine cover with an oil-gas separation function.

Background

The engine cover is a cover covering the engine cylinder body and is used for preventing external impurities from entering the engine, so that the running cost of the engine is reduced, and oil is prevented from being discharged along with waste gas to the maximum extent. At present, the engine hood cover is not provided with a position where an oil rail can be placed, and the internal structure of the engine hood cover is not compact after the engine hood cover is connected with a cylinder body. In addition, most of the existing engine covers are integrated with one oil-gas separation device, and the oil-gas separation device is arranged, so that the best oil-gas separation effect under different loads cannot be realized.

Disclosure of Invention

The utility model aims to provide an engine cover cap to solve the problems that an oil rail cannot be placed on the existing engine cover cap and the oil-gas separation effect is poor.

In order to achieve the purpose, the utility model adopts the technical scheme that:

an engine cover comprises a cover body, wherein the cover body is provided with a front surface and a back surface, the back surface of the cover body is inwards recessed to form a groove, the engine cover further comprises one or more rib assemblies, the periphery of the cover body is enclosed, a hollow mounting area is arranged in the middle of the cover body, the mounting area extends along a first direction, the rib assemblies are arranged in the mounting area, each rib assembly comprises a first rib and a second rib, one end of each of the first rib and the second rib is arranged on a first inner peripheral surface of the mounting area, the other end of each of the first rib and the second rib extends to a second inner peripheral surface of the mounting area in a direction away from the other end, and the rib assemblies extend along a second direction; the first inner circumferential surface and the second inner circumferential surface are arranged oppositely, the first inner circumferential surface and the second inner circumferential surface extend along a first direction, and the first direction is crossed with the second direction; the first inner peripheral surface or the second inner peripheral surface is provided with a first mounting hole extending to the mounting area, and the first mounting hole is used for placing an ignition coil.

Preferably, the engine cover further comprises a first separating baffle and a second separating baffle, a first groove and a second groove are formed in the reverse side of the cover body, and the first groove and the second groove are distributed on the front side and the rear side of the mounting area; the first groove is sealed by the first separating baffle to form a first oil-gas separating cavity, and the second groove is sealed by the second separating baffle to form a second oil-gas separating cavity.

Preferably, the first separating baffle is provided with a waste gas inlet communicated with the first oil-gas separating cavity and a plurality of oil return holes communicated with the first oil-gas separating cavity; the cover cap body is also provided with an air inlet manifold end hole, and the air inlet manifold end hole is communicated with the first oil-gas separation cavity and the air inlet manifold.

Preferably, a plurality of baffles are arranged in the first oil-gas separation cavity, and the baffles are vertically arranged on the reverse side of the cover body.

Preferably, the second separating baffle is provided with a first waste gas inlet and a second waste gas inlet, the first waste gas inlet and the second waste gas inlet are communicated with the second oil-gas separating cavity, and the second separating baffle is provided with a plurality of oil return holes communicated with the second oil-gas separating cavity.

Preferably, the cover body is further provided with an empty filter end hole, and the empty filter end hole is communicated with the second oil-gas separation cavity.

Preferably, when a plurality of rib assemblies are arranged, the plurality of rib assemblies are distributed along the first direction.

Preferably, one end of each of the first rib and the second rib is connected with the first inner circumferential surface through a second mounting hole, the other end of the first rib is connected with the second inner circumferential surface through a third mounting hole, the other end of the second rib is connected with the second inner circumferential surface through a fourth mounting hole, and the second mounting hole and/or the third mounting hole and/or the fourth mounting hole are used for fixing the ignition coil.

Preferably, the third mounting hole is disposed adjacent to the first mounting hole.

Preferably, the cover body on still seted up OCV valve opening, oil filler hole, OCV valve opening, empty filter end hole, oil filler hole, intake manifold end hole distribute be in the cover body around.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the engine cover provided by the utility model is provided with the mounting area, so that an oil rail or other parts can be conveniently mounted, the spatial arrangement is optimized and more compact; the best oil-gas separation effect can be realized under different loads.

Drawings

FIG. 1 is a top plan view of the front of an engine cover designed according to the present invention;

FIG. 2 is a top view of the reverse side of an engine cover designed according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along the line A-A of FIG. 2;

fig. 4 is a schematic cross-sectional view in the direction B-B in fig. 2.

In the above drawings: 1-a first rib, 2-a second rib, 3-a first mounting hole, 4-a second mounting hole, 5-a third mounting hole, 6-a fourth mounting hole, 7-an empty filter end hole, 8-an OCV valve, 9-an oil filling port, 10-an air inlet manifold end hole, 11-a waste gas inlet, 12-a first oil return hole, 13-a first separating baffle, 14-a second separating baffle, 15-a first waste gas inlet, 16-a second waste gas inlet, 17-a second oil return hole, 18-a baffle, 19-a first oil-gas separating cavity and 20-a second oil-gas separating cavity.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The engine cover of fig. 1-4 includes a cover body having a front surface and a back surface, the back surface of the cover body being recessed inwardly to form a recess.

The engine cover further comprises one or more rib assemblies, the periphery of the cover body is enclosed, the middle of the cover body is provided with a hollow annular mounting area which is communicated up and down, the mounting area extends along a first direction, the rib assemblies are arranged in the mounting area, and the first direction refers to the left-right direction in the drawing 1.

As shown in fig. 1, the mounting area has an annular inner peripheral surface, and the mounting area functions as a relief to facilitate mounting of the oil rail or other parts, so that the spatial arrangement is optimized and more compact, the oil rail is a pipeline, the oil rail extends along a first direction, and the oil rail is connected with an oil injector.

The rib subassembly includes first rib 1, second rib 2, and the one end of first rib 1, second rib 2 all sets up the first inner peripheral surface at the installing zone, and the other end of first rib 1, second rib 2 extends to the second inner peripheral surface of installing zone towards the direction of keeping away from the other side, and if the one end of first rib 1, second rib 2 can intersect, the other end of first rib 1, second rib 2 outwards expands and keeps away from, and first rib 1, second rib 2 are the V-arrangement.

Keep the clearance between first rib 1, the second rib 2, in the space of this clearance department, the connecting piece that is convenient for stretch out the oil rail holds here, sets up the mounting hole on the connecting piece, places the fastener in the mounting hole with shroud body and oil rail fixed connection.

The rib subassembly extends along the second direction, and the second direction is crossing with first direction, and second direction and first direction nonparallel promptly, the second direction indicates the fore-and-aft direction in figure 1, and the rib subassembly plays to support and strengthens the connection effect for more firm behind the installation oil rail on the shroud body.

When the rib subassembly sets up a plurality ofly, a plurality of rib subassemblies distribute along first direction, keep the clearance between every two adjacent rib subassemblies, and this clearance is used for placing ignition coil.

The first inner peripheral surface and the second inner peripheral surface are arranged oppositely, and both the first inner peripheral surface and the second inner peripheral surface extend along the first direction. First inner peripheral surface or second inner peripheral surface are provided with the first mounting hole 3 that extends to the installing zone, and first mounting hole 3 is used for placing ignition coil, and first mounting hole 3 sets up a plurality ofly, and when first mounting hole 3 set up at the second inner peripheral surface, the other end of first rib 1, the second rib 2 of a rib subassembly is located between two adjacent first mounting holes 3, and a plurality of first mounting holes 3 distribute along first direction.

One end of the first rib 1 and one end of the second rib 2 are connected with the first inner circumferential surface through the second mounting holes 4, the second mounting holes 4 are arranged on the first inner circumferential surface, the second mounting holes 4 are arranged in a plurality of numbers, and the second mounting holes 4 are distributed along the first direction. The other end of first rib 1 passes through third mounting hole 5 and is connected with the second inner peripheral surface, and third mounting hole 5 sets up a plurality ofly, and a plurality of third mounting holes 5 distribute along first direction. The other end of second rib 2 passes through fourth mounting hole 6 and is connected with the second inner peripheral surface, and fourth mounting hole 6 sets up a plurality ofly, and a plurality of fourth mounting holes 6 distribute along first direction. The second mounting hole 4 and/or the third mounting hole 5 and/or the fourth mounting hole 6 are used for fixing the ignition coil, and the second mounting hole 4, the third mounting hole 5 or the fourth mounting hole 6 can also be used for placing a fastener to be fixed with the cylinder body. The third mounting hole 5 and the fourth mounting hole 6 are adjacently arranged, and a gap is kept between the third mounting hole and the fourth mounting hole.

When the first mounting holes 3 are provided in the second inner peripheral surface, one first mounting hole 3 is provided adjacent to one third mounting hole 5. The first mounting hole 3, the second mounting hole 4, the third mounting hole 5 and the fourth mounting hole 6 are all through holes and are circular.

The engine cover has two cavities connected to the air filtering end and the air inlet manifold end separately.

The engine cover further comprises a first separating baffle 13 and a second separating baffle 14, a first groove and a second groove are formed in the reverse side of the cover body, and the first groove and the second groove are distributed on the front side and the rear side of the mounting area; the first separating baffle 13 closes the first groove to form a first oil-gas separating chamber 19 (which is one chamber), and the second separating baffle 14 closes the second groove to form a second oil-gas separating chamber 20 (which is the other chamber).

The first separating baffle 13 is provided with a waste gas inlet 11 communicated with the first oil-gas separating cavity 19 and a plurality of first oil return holes 12 communicated with the first oil-gas separating cavity 19, and the first oil return holes 12 are communicated with an oil return channel of the cylinder body. The cover body is further provided with an air inlet manifold end hole 10, and the air inlet manifold end hole 10 is communicated with the first oil-gas separation cavity 19 and is communicated with an air inlet manifold.

A plurality of baffle plates 18 are arranged in the first oil-gas separation chamber 19, and the baffle plates 18 are vertically arranged on the reverse side of the cover body. First oil-gas separation chamber 19 extends along first direction, and first oil-gas separation chamber 19 has first inner wall and second inner wall, and first inner wall and second inner wall set up relatively, and first inner wall and second inner wall all extend along first direction, and first oil return hole 12 is close to first inner wall. One end of each first baffle is arranged on the first inner wall, and the other end of each first baffle extends into the first oil-gas separation cavity 19; one end of each of the second baffles is arranged on the second inner wall, the other end of each of the second baffles extends into the first oil-gas separation cavity 19, the first baffles and the second baffles are arranged in a staggered mode, the first baffles and the second baffles separate the oil-gas separation cavity to form a plurality of oil-gas circulation channels, in one embodiment, the number of the baffles is 5, two first baffles are arranged on the first inner wall, three second baffles are arranged on the second inner wall, and the first baffles and the second baffles are arranged in a staggered mode.

When the light load operation, crankcase waste gas is gone into through this waste gas import 11, breaks up most oil drops through second baffle (the first baffle that is close to the waste gas import), during first baffle, in the oil return passageway of cylinder body is gone into to oil drop separation back through first oil gallery 12 respectively along the wall, and gas will insert intake manifold through intake manifold end hole 10 department, realizes retrieving the oil drop in the waste gas and recycles gas recovery.

First waste gas import 15, second waste gas import 16 have been seted up on the second separation baffle 14, and first waste gas import 15, second waste gas import 16 all communicate with second oil-gas separation chamber 20, keep the clearance between first waste gas import 15, the second waste gas import 16. The second separating baffle 14 is provided with a plurality of second oil return holes 17 communicated with the second oil-gas separating chamber 20, and in one embodiment, two oil return holes are provided, one second oil return hole 17 is close to the first exhaust gas inlet 15, and the other second oil return hole 17 is close to the second exhaust gas inlet 16. The engine hood further comprises an inlet baffle, a notch is formed in the second separating baffle 14, the inlet baffle covers the notch formed in the second separating baffle 14, the first waste gas inlet 15 is formed in the inlet baffle, and the second oil return hole 17 is formed in the inlet baffle.

The second oil-gas separation chamber 20 extends along a first direction, and a gap is maintained between the first exhaust gas inlet 15 and the second exhaust gas inlet 16, which are distributed along the first direction. A labyrinth passage is provided in the second oil-gas separation chamber 20.

The cover cap body is also provided with a hollow filter end hole 7, and the hollow filter end hole 7 is communicated with the second oil-gas separation cavity 20.

When the heavy-duty operation, crankcase waste gas is gone into through first waste gas import 15, second waste gas import 16, through labyrinth passageway, breaks up oil and falls along the wall landing, separates out oil through two second oil return holes 17, and oil after the separation drops into the oil return passageway of cylinder body, and gas is gone out (empty filter end hole access air cleaner) from empty filter end hole 7, realizes retrieving the oil drop in the waste gas and recycles to discharge gas.

The first oil-gas separation cavity 19 and the second oil-gas separation cavity 20 are arranged, oil-gas separation can be carried out under different loads (different loads refer to different power of an automobile engine), and the separation effect is good.

The cover cap body is also provided with an OCV valve hole (for placing an OCV valve) and an oil filling port 9 (for filling engine oil), and the OCV valve hole, the air filter end hole 7, the oil filling port 9 and the intake manifold end hole 10 are distributed around the cover cap body.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An engine hood comprises a hood body, wherein the hood body is provided with a front surface and a back surface, the back surface of the hood body is inwards recessed to form a groove, and the engine hood is characterized by further comprising one or more rib assemblies, the periphery of the hood body is enclosed, a hollow mounting area is arranged in the middle of the hood body, the mounting area is used for mounting an oil rail, the mounting area extends along a first direction, the rib assemblies are arranged in the mounting area, each rib assembly comprises a first rib and a second rib, one ends of the first rib and the second rib are arranged on a first inner circumferential surface of the mounting area, the other ends of the first rib and the second rib extend to a second inner circumferential surface of the mounting area in a direction away from the other side, and the rib assemblies extend along a second direction; the first inner circumferential surface and the second inner circumferential surface are arranged oppositely, the first inner circumferential surface and the second inner circumferential surface extend along a first direction, and the first direction is crossed with the second direction; the first inner peripheral surface or the second inner peripheral surface is provided with a first mounting hole extending to the mounting area, and the first mounting hole is used for placing an ignition coil.

2. The engine cover according to claim 1, further comprising a first separating baffle and a second separating baffle, wherein a first groove and a second groove are formed in the reverse surface of the cover body, and the first groove and the second groove are distributed on the front side and the rear side of the mounting area; the first groove is sealed by the first separating baffle to form a first oil-gas separating cavity, and the second groove is sealed by the second separating baffle to form a second oil-gas separating cavity.

3. The engine cover according to claim 2, wherein the first separating baffle is provided with an exhaust gas inlet communicated with the first oil-gas separating chamber and a plurality of first oil return holes communicated with the first oil-gas separating chamber, and the first oil return holes are communicated with an oil return channel of the cylinder block; the cover cap body is also provided with an air inlet manifold end hole, and the air inlet manifold end hole is communicated with the first oil-gas separation cavity and is communicated with an air inlet manifold.

4. The engine cover of claim 2, wherein a plurality of baffles are disposed in the first oil-gas separation chamber, the baffles being disposed vertically on an opposite side of the cover body.

5. The engine cover according to claim 2 or 3, wherein the second separating baffle is provided with a first exhaust gas inlet and a second exhaust gas inlet, the first exhaust gas inlet and the second exhaust gas inlet are communicated with the second oil-gas separating cavity, the second separating baffle is provided with a plurality of second oil return holes communicated with the second oil-gas separating cavity, and the second oil return holes are communicated with an oil return channel of the cylinder body.

6. The engine cover according to claim 5, wherein the cover body is further provided with a hollow filter end hole, and the hollow filter end hole is communicated with the second oil-gas separation cavity.

7. The engine cover according to claim 1, wherein a plurality of said rib assemblies are provided, and a plurality of said rib assemblies are distributed in the first direction.

8. The engine cover according to claim 1, wherein one end of the first rib and one end of the second rib are connected to the first inner circumferential surface through a second mounting hole, the other end of the first rib is connected to the second inner circumferential surface through a third mounting hole, the other end of the second rib is connected to the second inner circumferential surface through a fourth mounting hole, and the second mounting hole and/or the third mounting hole and/or the fourth mounting hole are used for fixing an ignition coil.

9. The hood cover of claim 8, wherein the third mounting hole is disposed adjacent to the first mounting hole.

10. The engine cover according to claim 6, wherein the cover body is further provided with an OCV valve hole and an oil filling port, and the OCV valve hole, the air filter end hole, the oil filling port and the intake manifold end hole are distributed around the cover body.