CN215057657U - Oil-gas separation device of V-shaped engine, V-shaped engine and vehicle - Google Patents

Abstract

The utility model provides an oil-gas separation device of a V-shaped engine, a V-shaped engine and a vehicle, which belong to the technical field of vehicles, and comprise a crude oil-gas separation structure, wherein the crude oil-gas separation structure is arranged in a V-shaped angle area of the V-shaped engine, the crude oil-gas separation structure is provided with a first air inlet, a first exhaust port and a first oil discharge port, and the first air inlet is communicated with a timing cavity of the V-shaped engine through an air taking channel; the first oil outlet is communicated with a crankcase of the V-shaped engine through an oil return passage. The oil-gas separation device of the V-shaped engine can reduce the overall height of the engine and reduce the arrangement difficulty of the engine in the engine room; shorten and get the gas passageway, reduce the structure of engine, reduce the preparation degree of difficulty and the cost of engine.

Description

Oil-gas separation device of V-shaped engine, V-shaped engine and vehicle

Technical Field

The utility model belongs to the technical field of the car, concretely relates to oil-gas separation device, V type engine and vehicle of V type engine.

Background

The V-shaped engine is an engine which divides all cylinders into two groups, arranges the adjacent cylinders together at a certain included angle, leads the two groups of cylinders to form a plane with an included angle, and leads the cylinders to be V-shaped when viewed from the side. The V-shaped engine has small height and length dimensions, and is convenient to arrange on an automobile. The variable displacement pump is convenient for improving the displacement and the power by enlarging the diameter of the cylinder, is suitable for a high cylinder number, and has wide application in medium and high-grade vehicle types.

The V-type engine has the disadvantages that two cylinder heads are required and the structure is complicated. In addition, after the width of the engine is increased, the space at two sides of the engine is smaller, and other devices are not easy to arrange.

The oil-gas separator integration of V type engine is covered at the cylinder head at present, need design coarse separation structure and smart isolating construction in the cylinder head cover, and this kind of integration oil-gas separator's shortcoming on the cylinder head cover is:

(1) the oil-gas separator is far away from a crankcase, and a longer gas taking channel and an oil return channel need to be cast on a cylinder cover of the machine body;

(2) the coarse separation structure and the fine separation structure integrated in the cylinder head cover need to be packaged by a cover plate, so that the design and manufacturing difficulty of the cylinder head cover is increased, and the cost is increased;

(3) the oil-gas separator integrated on the cylinder head cover can increase the height of the cylinder head cover, namely the overall height of the engine, and the arrangement difficulty of the engine in a cabin is increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an oil-gas separation device of V type engine can reduce the whole height of V type engine, shortens and gets gas length, reduces the design preparation degree of difficulty.

In order to achieve the above object, the present invention adopts the following technical solutions: the oil-gas separation device of the V-shaped engine comprises a crude oil-gas separation structure, wherein the crude oil-gas separation structure is arranged in a V-shaped corner area of the V-shaped engine and is provided with a first air inlet, a first exhaust port and a first oil outlet, and the first air inlet is communicated with a timing cavity of the V-shaped engine through an air taking channel; and the first oil outlet is communicated with a crankcase of the V-shaped engine through an oil return passage.

With reference to the first aspect, in a possible implementation manner, the crude oil-gas separation structure includes an oil-gas separation chamber and a plurality of separation baffles fixedly arranged on the left and right sides of the oil-gas separation chamber; any one separating baffle on the same side is positioned between two adjacent separating baffles on the opposite side to form staggered arrangement, and the separating baffles on the two sides extend into the opposite side; wherein, get the gas passageway set up in the regional front end of V type angle, thick oil-gas separation structure set up in the regional rear end of V type angle, oil return passage communicate in the rear end of oil-gas separation chamber, first exhaust port sets up the upper end of oil-gas separation chamber.

With reference to the first aspect, in one possible implementation manner, the separation baffle gradually inclines backward of the V-shaped corner region from the fixed end to the free end.

With reference to the first aspect, in one possible implementation manner, the bottom of the oil-gas separation cavity is provided with a flow guiding inclined surface which is inclined downwards from front to back.

With reference to the first aspect, in a possible implementation manner, a raised shunting baffle is arranged at the bottom of the oil-gas separation cavity, the shunting baffle extends along a central axis of the V-shaped angle region to divide the oil-gas separation cavity into a left cavity and a right cavity, and the left cavity and the right cavity are respectively provided with the first oil discharge port; the free ends of the separation baffle plates on the left side and the right side are supported on the flow dividing baffle plates.

With reference to the first aspect, in a possible implementation manner, the V-type engine includes a body, the V-shaped corner area is disposed at an upper portion of the body, the timing cavity is disposed at a front end of the body, and the oil return passage includes a left oil return passage disposed at a left side of the body and a right oil return passage disposed at a right side of the body; the one end intercommunication of left side oil return passage the left side cavity first oil discharge port, the other end intercommunication of left side oil return passage the crankcase, the one end intercommunication of right side oil return passage the right side cavity first oil discharge port, the other end intercommunication of right side oil return passage the crankcase.

With reference to the first aspect, in a possible implementation manner, a left-row cylinder block oil return channel is further arranged on the left side of the machine body; the right side of the machine body is also provided with a right-row cylinder body oil return channel; the left row of cylinder body oil return passages are respectively communicated with the left oil return passage and the crankcase, and the right row of cylinder body oil return passages are respectively communicated with the right oil return passage and the crankcase.

With reference to the first aspect, in a possible implementation manner, oil return ports are formed in the left row of cylinder body oil return channels and the right row of cylinder body oil return channels, and plugs are arranged on the oil return ports.

In a second aspect, the embodiment of the present invention further provides a V-shaped engine, including an oil-gas separator and the oil-gas separation device of the V-shaped engine; the oil-gas separator is arranged in the V-shaped angle area and is positioned above the coarse oil-gas separation structure, the oil-gas separator is provided with a second gas inlet, a second gas outlet and a second oil outlet, and the second gas inlet is communicated with the first gas outlet.

With reference to the first aspect, in a possible implementation manner, the second oil drain port is located in the oil-gas separation cavity, and a one-way mechanism corresponding to the second oil drain port is disposed in the oil-gas separator.

In a third aspect, the embodiment of the present invention further provides a vehicle, which adopts the V-type engine.

The utility model provides an oil-gas separation device and V type engine of V type engine compares with prior art, and beneficial effect lies in: (1) the existing space is utilized to directly lead the air taking channel to the timing cavity from the V-shaped angle area, so that the air taking length can be shortened, and the weight of the engine is reduced; (2) precasting a crude oil-gas separation structure in a V-shaped angle area of the engine to realize the first separation degree of oil gas; the secondary separation of oil and gas can be realized through the oil-gas separator, the design difficulty is reduced, the volume of the oil-gas separator is reduced, the cost is reduced, and the overall height of the engine is reduced; (3) according to the characteristic that the cylinder center distance of the V-shaped engine is long, an oil return channel is processed between the two thicker cylinders, so that the separated engine oil directly enters the oil return channel, the oil return length is reduced, and the oil return is smoother.

The vehicle provided by the utility model adopts the V-shaped engine, so that the overall height of the engine can be reduced, and the difficulty of arrangement of the engine in the engine room is reduced; shorten and get gas length, reduce the structure of engine, reduce the preparation degree of difficulty and the cost of engine.

Drawings

Fig. 1 is a schematic structural diagram of an oil-gas separation device of a V-type engine according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic view of an internal structure of an oil-gas separation device of a V-type engine according to an embodiment of the present invention;

FIG. 4 is a schematic sectional view of the oil-gas separation device of the V-type engine shown in FIG. 3;

description of reference numerals:

1. a left row of cylinders; 2. a right bank of cylinders; 3. an oil-gas separator; 4. a body; 5. a V-shaped corner region; 6. an oil-gas separation chamber; 7. separating the baffle plate; 8. a gas taking channel; 9. an installation position; 10. a left oil return passage; 11. plugging; 12. a left row cylinder body oil return channel; 13. a right oil return passage; 14. a right row cylinder body oil return passage; 15. and (4) dividing and blocking.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "front", "rear", "left", "right", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 4 together, the oil-gas separation device of the V-type engine of the present invention will now be described. The oil-gas separation device of the V-shaped engine comprises a crude oil-gas separation structure, wherein the crude oil-gas separation structure is arranged in a V-shaped corner area 5 of the V-shaped engine, the crude oil-gas separation structure is provided with a first air inlet, a first exhaust port and a first oil outlet, and the first air inlet is communicated with a timing cavity of the V-shaped engine through an air taking channel 8; the first oil outlet is communicated with a crankcase of the V-shaped engine through an oil return passage. The V-shaped engine comprises an engine body 4, a left row of cylinder blocks 1 and a right row of cylinder blocks 2 are arranged on the upper portion of the engine body 4, a V-shaped corner area 5 is arranged on the upper portion of the engine body 4 and located between the left row of cylinder blocks 1 and the right row of cylinder blocks 2, and a timing cavity is arranged at the front end of the engine body 4.

The oil-gas separation device of the V-shaped engine provided by the embodiment has the beneficial effects that:

(1) by utilizing the existing space, the air intake channel 8 is directly led to the timing cavity from the V-shaped corner area 5, the air intake length can be shortened, and the weight of the engine is reduced.

(2) At the thick oil-gas separation structure of V type angle zone 5 precast of engine, only need set up smart isolating construction on the engine, oil-gas separation's process as follows: oil gas in the front end cavity of the engine enters the gas taking channel 8 to flow backwards (as shown by an arrow in figure 2), and primary separation of the oil gas is realized through a crude oil gas separation structure; the secondary separation of oil and gas can be realized through the oil-gas separator 3; the gas taking channel 8 is directly communicated with the timing cavity, so that the design difficulty is reduced, the volume of the oil-gas separator 3 is reduced, and the cost is reduced; meanwhile, the crude oil-gas separation structure is directly cast in the V-shaped angle area 5, so that the overall height of the engine can be reduced, and the arrangement of the engine is facilitated.

(3) According to the characteristic that the cylinder center distance of the V-shaped engine is long, an oil return channel is processed between the two thicker cylinders, so that the separated engine oil directly enters the oil return channel, the oil return length is reduced, and the oil return is smoother.

In the present embodiment, the front-rear direction is the vertical direction in fig. 1, where the lower side is the front, and the upper side is the rear; the left-right direction is the left-right direction in fig. 1, and the up-down direction is the direction perpendicular to the paper surface in fig. 1.

In some embodiments, the above-described characteristic crude oil-gas separation structure may adopt a structure as shown in fig. 2 to 4. Referring to fig. 2 to 4, the crude oil-gas separation structure includes an oil-gas separation chamber 6 and a plurality of separation baffles 7 fixedly disposed at left and right sides of the oil-gas separation chamber 6; any separation baffle 6 on the same side is positioned between two adjacent separation baffles 6 on the opposite side to form staggered arrangement, and the separation baffles 6 on the two sides mutually extend into the opposite side to form an S-shaped oil-gas separation channel; wherein, get gas channel 8 and set up in the front portion of V type angle region 5, thick oil-gas separation structure sets up in the rear portion of V type angle region 5, and oil return channel communicates in the rear end of oil-gas separation chamber 6, and first exhaust port sets up the upper end at oil-gas separation chamber 6. In the embodiment, the V-shaped angle area 5 of the engine is utilized, the oil-gas separation cavity 6 and the separation baffle 7 are directly cast in the engine body 4, and the manufacturing difficulty of the engine is reduced. Oil gas enters the crude oil-gas separation structure through the gas taking channel 8, oil drops in the oil gas collide with the separation baffle 7 and adhere to the separation baffle 7, and the oil drops flow down along the separation baffle 7 after being gathered and are gathered in the oil-gas separation cavity 6 and recycled through the left oil return channel 10 and the right oil return channel 3; gas rises due to low density and enters the oil-gas separator 3 above through the exhaust port at the upper end of the oil-gas separation cavity 6 for secondary separation, so that the oil-gas separation effect is improved.

As a modified embodiment of the crude oil-gas separation structure of the above-described characteristic, referring to fig. 3, the separation baffle 7 is gradually inclined from the fixed end to the free end toward the rear end of the V-shaped corner region 5. That is, the separating baffle 7 is inclined toward the direction of the airflow, and a guide inclined surface is formed on the front end surface of the separating baffle 7 to guide the airflow.

Another variant of the crude oil-gas separation structure of the above-mentioned character is that the bottom of the oil-gas separation chamber 6 has a downwardly inclined flow guiding slope from the front end to the rear end. The oil return passage is communicated with the rear end of the oil-gas separation cavity 6 and is provided with a flow guide inclined plane so as to facilitate the collected engine oil to be smoothly recovered from the oil return passage.

Another modified embodiment of the crude oil-gas separation structure with the above features is that, referring to fig. 3, a raised flow dividing barrier 15 is arranged at the bottom of the oil-gas separation cavity 6, the flow dividing barrier 15 extends along the central axis of the V-shaped angle region 5 to divide the oil-gas separation cavity 6 into a left chamber and a right chamber, and the left chamber and the right chamber are respectively provided with a first oil discharge port; the fixed end of the separating baffle 7 is fixed on the inner wall of the oil-gas separation cavity 6, and the free end of the separating baffle 7 is supported on the shunting partition 15 to form an S-shaped channel, so that the length of the oil-gas separation channel is increased, and the oil-gas separation effect is improved. The reposition of redundant personnel that 6 bottoms intermediate positions in oil-gas separation chamber set up separates the fender, can promote the height at 6 middle parts in oil-gas separation chamber, avoids machine oil to collect the difficult exhaust phenomenon that arouses at the middle part in oil-gas separation chamber 6, and the contour line that the reposition of redundant personnel separated the fender is streamlined to drip in the oil droplet landing left cavity or right cavity that separates on keeping off in the reposition of redundant personnel, and follow oil return channel backward flow smoothly.

As shown in fig. 4, on the basis of the above-mentioned characteristic crude oil-gas separation structure, the oil return passage includes a left oil return passage 10 provided on the left side of the machine body 4 and a right oil return passage 13 provided on the right side of the machine body 4; one end of the left oil return passage 10 is communicated with the first oil outlet of the left chamber, the other end is communicated with the crankcase of the V-shaped engine, one end of the right oil return passage 13 is communicated with the first oil outlet of the right chamber, and the other end is communicated with the crankcase of the V-shaped engine. Aiming at the left row of cylinder body oil return passage 12 and the right row of cylinder body oil return passage 14 of the V-shaped engine, a corresponding left oil return passage and a corresponding right oil return passage are respectively arranged, so that the oil return length is reduced, the oil return is smoother, and the separated engine oil is convenient to recycle.

As a modified embodiment, referring to fig. 4, a left row cylinder return channel 12 is further provided on the left side of the machine body 4, and a right row cylinder return channel 14 is further provided on the right side of the machine body 4; the left bank return 12 is used to direct the left cylinder head lubricating oil to the crankcase and the right bank return 14 is used to direct the right cylinder head lubricating oil to the crankcase.

The left row cylinder body oil return passage 12 is communicated with the left oil return passage 10 and the crankcase respectively, and the right row cylinder body oil return passage 14 is communicated with the right oil return passage 13 and the crankcase respectively. The engine oil collected in the left chamber can directly flow back to the left cylinder body oil return passage 12 through the left oil return passage 10 and flow back to the crankcase for recycling; the engine oil collected in the right chamber directly flows back to the crankcase for recycling through the right oil return passage 13 and the right cylinder body oil return passage 14, so that the oil return length is reduced, and the oil return is smoother.

As shown in fig. 4, on the basis of the above-mentioned characteristic crude oil-gas separation structure, the left row cylinder body oil return passage 12 and the right row cylinder body oil return passage 14 are respectively provided with an oil return port, the oil return ports are respectively provided with a plug 11, and by providing the plugs 11, collected engine oil can be discharged from the oil return ports, so that the recovered engine oil can be reasonably utilized.

Based on the same inventive concept, the embodiment of the application also provides a V-shaped engine, which comprises an oil-gas separator 3 and an oil-gas separation device of the V-shaped engine; the oil-gas separator 3 is arranged in the V-shaped angle area 5 and is positioned above the crude oil-gas separation structure, the oil-gas separator 3 is provided with a second air inlet, a second air outlet and a second oil outlet, the second air inlet is communicated with the first air outlet, and oil gas subjected to primary separation by the crude oil-gas separation structure is subjected to secondary separation. The second exhaust port is communicated with a pipeline at the front end of the supercharger, separated gas passes through the supercharger and the intercooler and then reaches the air inlet manifold and then enters the combustion chamber, the second oil discharge port is positioned in the oil-gas separation cavity 6, and engine oil discharged by the oil-gas separator 3 flows into the crankcase through the oil return channel. In the embodiment, the oil-gas separator 3 is arranged in the V-shaped angle area 5 of the V-shaped engine, the V-shaped angle space of the engine is reasonably utilized, the overall height of the engine is reduced, and the arrangement of the engine in a cabin is facilitated.

In order to prevent the mixed gas in the oil-gas separation cavity 6 from entering the oil-gas separator 3 through the second oil discharge port, a one-way mechanism corresponding to the second oil discharge port is arranged in the oil-gas separator 3. The one-way mechanism may be a one-way valve or other one-way mechanism. In this embodiment, the one-way mechanism includes the inner tube, and oil separator 3's lower part has the oil drain pipe, and the lower extreme of oil drain pipe is blocked by the shutoff portion, and the inner tube sets up in the oil drain pipe, all is provided with the space between the outer wall of inner tube and the inner wall of oil drain pipe and between the lower extreme of inner tube and the shutoff portion, and the upper end in space is sealed, and the second oil drain port is seted up in the lower part of oil drain pipe, and the second oil drain port is higher than the lower terminal surface of inner tube. The engine oil separated by the oil-gas separator 3 flows into the gap from the lower end surface of the inner tube after passing through the inner tube and flows out from the second oil drain port positioned above the lower end surface of the inner tube, and the liquid level of the engine oil in the gap is higher than the lower end surface of the inner tube, so that the liquid seal effect can be realized, and the mixed gas of the oil-gas separation cavity 6 is effectively prevented from flowing into the oil-gas separator 3 from the lower end surface of the inner tube.

The gas-oil separator 3 is a separate device that is part of the exhaust gas circulation system and is used to separate the engine oil from the exhaust gas from the crankcase, reducing the possibility of engine oil being discharged from the crankcase breathing port to the outside of the engine. The oil-gas separator 3 mainly has the functions of decomposing the engine oil vapor in the oil pan and the water vapor fleed from the combustion chamber, enabling the separated oil film to flow to the oil pan for recycling, and enabling the filtered vapor to enter the engine for re-combustion.

In this embodiment, as shown in fig. 3, a mounting location 9 is further disposed in a V-shaped corner region 5 of the machine body 4, the oil-gas separator 3 is fixed on the mounting location 9 through a bolt, an oil-gas separation chamber 6 is disposed below the mounting location 9, a first exhaust port of the oil-gas separation chamber 6 is communicated with the oil-gas separator, oil gas separated by the crude oil-gas separation structure moves upward, and enters the oil-gas separator 3 through the first exhaust port to realize secondary separation.

In a third aspect, the embodiment of the present invention further provides a vehicle, which adopts the V-type engine. The utility model provides a V type engine and vehicle can reduce the whole height of engine, reduces the arrangement difficulty of engine in the cabin; shorten and get gas length, reduce the structure of engine, reduce the preparation degree of difficulty and the cost of engine.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (11)

1. The oil-gas separation device of the V-shaped engine comprises a crude oil-gas separation structure, and is characterized in that the crude oil-gas separation structure is arranged in a V-shaped angle area (5) of the V-shaped engine, the crude oil-gas separation structure is provided with a first air inlet, a first exhaust port and a first oil outlet, and the first air inlet is communicated with a timing cavity of the V-shaped engine through an air taking channel (8); and the first oil outlet is communicated with a crankcase of the V-shaped engine through an oil return passage.

2. The oil-gas separation device of a V-shaped engine according to claim 1, wherein the crude oil-gas separation structure comprises an oil-gas separation chamber (6) and a plurality of separation baffles (7) fixedly arranged on the left side wall and the right side wall of the oil-gas separation chamber (6); any one separating baffle (7) on the same side is positioned between two adjacent separating baffles (7) on the opposite side to form staggered arrangement, and the separating baffles (7) on the two sides extend into the opposite side to form an S-shaped oil-gas separating channel; wherein, get gas passageway (8) set up in anterior in V type angle region (5), thick oil-gas separation structure set up in rear portion in V type angle region (5), the chamber set up in right time in the front end of V type engine, oil return passageway intercommunication the rear end of oil-gas separation chamber (6), first exhaust port intercommunication the upper end of oil-gas separation chamber (6).

3. The oil-gas separation device of a V-type engine according to claim 2, wherein the separation baffle (7) is gradually inclined rearward of the V-shaped angle region (5) from a fixed end to a free end.

4. The oil-gas separation device of a V-type engine according to claim 2, wherein the bottom of the oil-gas separation chamber (6) has a diversion slope gradually inclined downward from front to back.

5. The oil-gas separation device of the V-shaped engine as claimed in claim 2, wherein a raised flow dividing baffle (15) is arranged at the bottom of the oil-gas separation cavity (6), the flow dividing baffle (15) extends along the central axis of the V-shaped angle area (5) to divide the oil-gas separation cavity (6) into a left chamber and a right chamber, and the left chamber and the right chamber are respectively provided with the first oil discharge port; the free ends of the separation baffles (7) on the left side and the right side are supported on the flow dividing baffle (15).

6. The oil-gas separation device of a V-type engine according to claim 5, characterized in that the V-type engine comprises a body (4), the V-shaped corner region (5) is arranged at the upper part of the body (4), the timing cavity is arranged at the front end of the body (4), and the oil return passage comprises a left oil return passage (10) arranged at the left side of the body (4) and a right oil return passage (13) arranged at the right side of the body (4); the one end intercommunication of left side oil return passageway (10) the left side cavity first oil discharge port, the other end intercommunication of left side oil return passageway (10) the crankcase, the one end intercommunication of right side oil return passageway (13) the right side cavity first oil discharge port, the other end intercommunication of right side oil return passageway (13) the crankcase.

7. The oil-gas separation device of a V-shaped engine as claimed in claim 6, characterized in that the left side of the engine body (4) is further provided with a left-row cylinder return channel (12); a right-row cylinder body oil return channel (14) is also arranged on the right side of the machine body (4); the left-row cylinder body oil return passage (12) is communicated with the left oil return passage (10) and the crankcase respectively, and the right-row cylinder body oil return passage (14) is communicated with the right oil return passage (13) and the crankcase respectively.

8. The oil-gas separation device of a V-shaped engine according to claim 7, characterized in that the left row cylinder body oil return passage (12) and the right row cylinder body oil return passage (14) are provided with oil return ports, and the oil return ports are provided with plugs (11).

9. A V-engine characterized by comprising an oil-gas separator (3) and the oil-gas separation device of the V-engine according to any one of claims 2 to 8; the oil-gas separator (3) is arranged in the V-shaped angle area (5) and is positioned above the crude oil-gas separation structure, the oil-gas separator (3) is provided with a second gas inlet, a second gas outlet and a second oil outlet, and the second gas inlet is communicated with the first gas outlet.

10. The V-type engine according to claim 9, characterized in that the second oil discharge port is positioned in the oil-gas separation chamber (6), and a one-way mechanism corresponding to the second oil discharge port is arranged in the oil-gas separator (3).

11. A vehicle characterized by employing the V-type engine according to claims 9-10.

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