CN214660428U - Camshaft, engine and vehicle that can be used to oil-gas separation - Google Patents
Camshaft, engine and vehicle that can be used to oil-gas separation Download PDFInfo
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- CN214660428U CN214660428U CN202121213644.0U CN202121213644U CN214660428U CN 214660428 U CN214660428 U CN 214660428U CN 202121213644 U CN202121213644 U CN 202121213644U CN 214660428 U CN214660428 U CN 214660428U
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Abstract
The utility model provides a camshaft, engine and vehicle that can be used to oil-gas separation, wherein, be equipped with the oil-gas separation chamber in the camshaft that can be used to oil-gas separation, the one end in oil-gas separation chamber is equipped with first opening, the oil-gas separation chamber through the first opening with the exhaust gas pipe intercommunication of engine; the outer wall of the camshaft for oil-gas separation is provided with a first through hole, and the oil-gas separation cavity is communicated with the crankcase of the engine through the first through hole, so that oil-gas mixture in the crankcase enters the oil-gas separation cavity through the first through hole. The embodiment of the utility model provides a can solve among the prior art in the engine partial machine oil along with waste gas discharge lead to the too fast problem of machine oil consumption speed.
Description
Technical Field
The utility model relates to a vehicle parts technical field especially relates to a camshaft, engine and vehicle that can be used to oil-gas separation.
Background
During operation of the engine, a mixture of fuel and air is first injected into the cylinder through an intake valve and ignited, so that the mixture is combusted in the cylinder, causing the volume of the mixture to expand, thereby pushing the piston to move. The up-and-down movement of the piston is converted into a rotational movement by the crankshaft, so that the engine is operated and the exhaust gases burnt in the cylinder are discharged through the exhaust valve. The opening and closing timings of the intake valve and the exhaust valve are controlled by rotation of a camshaft.
Due to the gap between the piston and the piston wall, the exhaust gas fraction in the cylinder enters the crankcase. Meanwhile, the oil in the oil pan generates oil vapor or oil particles under the action of high temperature, and the oil vapor and/or the oil particles enter the crankcase and are mixed with the exhaust gas in the crankcase and then discharged through an exhaust pipe of the engine, so that the oil in the engine is consumed too fast.
Therefore, the prior art has the problem that part of the engine oil is discharged along with the exhaust gas, so that the oil consumption speed is too high.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of this application is to provide a camshaft, engine and vehicle that can be used to oil-gas separation, solve the problem that partial engine oil causes the too fast of engine oil consumption speed along with waste gas discharge in current engine.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a camshaft for oil-gas separation, which is applied to an engine, an oil-gas separation chamber is arranged in the camshaft for oil-gas separation, a first opening is arranged at one end of the oil-gas separation chamber, and the oil-gas separation chamber is communicated with an exhaust gas pipe of the engine through the first opening; the outer wall of the camshaft for oil-gas separation is provided with a first through hole, and the oil-gas separation cavity is communicated with the crankcase of the engine through the first through hole, so that oil-gas mixture in the crankcase enters the oil-gas separation cavity through the first through hole.
Optionally, the number of the first through holes is multiple.
Optionally, a plurality of the first through holes are arranged at intervals along the circumferential direction of the camshaft which can be used for oil-gas separation.
Optionally, a plurality of the first through holes are arranged at intervals along the axial direction of the camshaft which can be used for oil-gas separation.
Optionally, the first through hole is provided at an end of the camshaft available for oil-gas separation near a timing chain cover of the engine.
In a second aspect, an embodiment of the present invention further provides an engine, including a signal wheel circumferential positioning sleeve and the above camshaft for oil-gas separation; the signal wheel circumferential positioning sleeve is sleeved on the camshaft which can be used for oil-gas separation.
Optionally, the outer wall of the signal wheel circumferential positioning sleeve is provided with a second through hole, and the second through hole is communicated with the first through hole.
Optionally, a perpendicular projection portion of the second through hole on the outer wall of the camshaft available for oil-gas separation is located outside the first through hole.
In a third aspect, an embodiment of the present invention further provides a vehicle, including the above-mentioned engine.
Optionally, the vehicle is a motorcycle.
In this embodiment, the camshaft that can be used to oil-gas separation is equipped with oil-gas separation chamber and first through-hole, the oil-gas mixture in the crankcase can get into in the oil-gas separation chamber via first through-hole to under the centrifugal force effect that the camshaft rotation produced, make machine oil separate from waste gas, reduced the volume along with waste gas exhaust machine oil, thereby slowed down the consumption speed of machine oil.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a camshaft that can be used for oil-gas separation according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of an engine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
As shown in fig. 1-3, an embodiment of the present invention provides a camshaft 10 for oil-gas separation, which is applied to an engine, an oil-gas separation chamber 101 is disposed in the camshaft 10 for oil-gas separation, a first opening 1011 is disposed at one end of the oil-gas separation chamber 101, and the oil-gas separation chamber 101 is communicated with an exhaust pipe 20 of the engine through the first opening 1011; the outer wall of the camshaft 10 used for oil-gas separation is provided with a first through hole 102, and the oil-gas separation chamber 101 is communicated with the crankcase 30 of the engine through the first through hole 102, so that the oil-gas mixture in the crankcase 30 enters the oil-gas separation chamber 101 through the first through hole 102.
It should be understood that the shape and number of the first through holes 102 are not limited herein, and the shape and size of the oil gas separation chamber 101 are not limited herein. When the number of the first through holes 102 is multiple, the multiple first through holes 102 are all communicated with the oil-gas separation cavity 101, so that in specific implementation, the size and the shape of the oil-gas separation cavity 101 can be adjusted according to the number and the distribution of the first through holes 102.
It should be understood that the oil-gas separation chamber 101 communicates with the crankcase 30 of the engine through the first through hole 102, so that the oil-gas mixture in the crankcase 30 can flow to the first through hole 102 and enter the oil-gas separation chamber 101 through the first through hole 102. In particular implementations, depending on the distribution of other components in the engine, in some embodiments, the camshaft 10, which may be used for oil-gas separation, includes a first region, which is free from passage of air to the crankcase 30, and the first through-hole 102 is disposed outside the first region.
The camshaft 10 for oil-gas separation provided by the present embodiment is applied to an engine, and in the following description, for convenience of reading, the camshaft 10 for oil-gas separation will be simply referred to as the camshaft 10. During operation of the engine, the camshaft 10 is continuously rotated to control the opening and closing timings of the intake and exhaust valves. As the engine continues to operate, the air/fuel mixture in the crankcase 30 increases, causing the air pressure in the crankcase 30 to increase. Since the crankcase 30 is communicated with the oil-gas separation chamber 101 through the first through hole 102, and the oil-gas separation chamber 101 is communicated with the exhaust pipe 20, under the action of the air pressure, the oil-gas mixture in the crankcase 30 enters the oil-gas separation chamber 101 through the first through hole 102. Because the density of the engine oil is different from that of the air, the engine oil with the higher density is separated from the oil-gas mixture due to the centrifugal force in the rotation process of the camshaft 10. Under the action of centrifugal force, the engine oil can be condensed on the wall of the oil-gas separation cavity 101 and then flows out through the first through hole 102 so as to be recycled. Meanwhile, since the exhaust gas has a low density and is less influenced by centrifugal force, the exhaust gas enters the exhaust pipe 20 through the first opening 1011. In particular implementations, exhaust gas entering the exhaust pipe 20 is treated and then sent back to the combustion chamber for recycling via the intake manifold of the engine. The treated waste gas is recycled into the combustion chamber, and the discharge amount of harmful substances is reduced through secondary combustion. Through the arrangement of the camshaft 10 for oil-gas separation, no additional part is required to be added, and oil-gas separation can be performed only by using the centrifugal force generated by the rotation of the camshaft 10, so that the cost is reduced. Of course, during the operation of the engine, as the engine speed increases, the rotation speed of the camshaft 10 also increases, so that the centrifugal force applied to the engine oil in the oil-gas mixture increases, and the oil-gas separation efficiency is improved.
In this embodiment, the camshaft 10 is provided with the oil-gas separation chamber 101 and the first through hole 102, the oil-gas mixture in the crankcase 30 can enter the oil-gas separation chamber 101 through the first through hole 102, and under the action of centrifugal force generated by rotation of the camshaft 10, the engine oil is separated from the exhaust gas, the amount of the engine oil discharged with the exhaust gas is reduced, and therefore the consumption speed of the engine oil is reduced.
Optionally, the number of the first through holes 102 is multiple.
It should be understood that the shape of the first through hole 102 is not limited herein. For example, in one embodiment, the first through hole 102 is a circular hole. In another embodiment, the first through hole 102 is a square hole. In yet another embodiment, the first through hole 102 is an oblong hole. In some embodiments, the shape of the plurality of first through holes 102 may be different.
It should be understood that the number of the first through holes 102 is plural, and the arrangement of the plural first through holes 102 is not limited herein. For example, in some embodiments, the first through hole 102 includes any adjacent first sub through hole and second sub through hole, and the first sub through hole and the second sub through hole are spaced along the circumferential direction of the camshaft 10 or spaced along the axial direction of the camshaft 10. Of course, the first through holes 102 are also distributed irregularly according to actual requirements.
In this embodiment, the number of the first through holes 102 is plural, the oil-gas mixture in the crankcase 30 can enter the oil-gas separation chamber 101 through any one of the first through holes 102, and the separated oil can flow out through any one of the first through holes 102, so that the oil-gas separation efficiency is improved.
Alternatively, a plurality of the first through holes 102 are provided at intervals in the circumferential direction of the camshaft 10.
It should be understood that a plurality of the first through holes 102 are arranged at intervals in the circumferential direction of the camshaft 10, and the size of the intervals is not limited herein. For example, in one embodiment, the first through holes 102 are uniformly spaced along the circumferential direction of the camshaft 10. In another embodiment, a plurality of the first through holes 102 are arranged at intervals along the circumferential direction of the camshaft 10, and the interval between any two adjacent first through holes 102 is different.
In the present embodiment, a plurality of the first through holes 102 are provided at intervals in the circumferential direction of the camshaft 10. Through the arrangement, in the rotating process of the camshaft 10, the oil-gas mixture can enter the oil-gas separation cavity 101 through any one of the first through holes 102 in the circumferential direction of the camshaft 10, so that the probability of the oil-gas mixture entering the oil-gas separation cavity 101 is increased, and the oil-gas separation efficiency is improved.
Alternatively, a plurality of the first through holes 102 are provided at intervals in the axial direction of the camshaft 10.
It should be understood that a plurality of the first through holes 102 are arranged at intervals in the axial direction of the camshaft 10, and the size of the intervals is not limited herein. For example, in one embodiment, the first through holes 102 are uniformly spaced in the axial direction of the camshaft 10. In another embodiment, a plurality of the first through holes 102 are spaced apart along the axial direction of the camshaft 10, and the spacing between any two adjacent first through holes 102 is different. In a specific implementation, the concentrations of the oil-gas mixture at different positions of the camshaft 10 in the axial direction are different, so that the interval between any two axially adjacent first through holes 102 in the camshaft 10 may be different.
In the present embodiment, a plurality of the first through holes 102 are provided at intervals in the axial direction of the camshaft 10. With the arrangement, the oil-gas mixture can enter the oil-gas separation chamber 101 through any one of the first through holes 102 arranged along the axial direction of the camshaft 10. According to actual requirements, the density of the first through holes 102 can be adjusted according to different concentrations of the oil-gas mixture corresponding to each part of the camshaft 10, so that the probability that the oil-gas mixture enters the oil-gas separation cavity 101 is increased, and the oil-gas separation efficiency is improved.
Alternatively, in some embodiments, the first through hole 102 is provided at an end of the camshaft 10 near the timing chain cover 40 of the engine. The concentration of the oil-gas mixture near one end of the camshaft 10 close to the timing chain cover 40 of the engine is small, so that the oil-gas mixture entering the camshaft 10 is small, the oil-gas mixture can be fully separated in the camshaft 10, and the oil-gas separation effect is improved.
As shown in fig. 3, the embodiment of the present invention further provides an engine, which includes a signal wheel circumferential locating sleeve 50 and the above-mentioned camshaft 10 that can be used for oil-gas separation; the signal wheel circumferential positioning sleeve 50 is sleeved on the camshaft 10 which can be used for oil-gas separation. Wherein, the signal wheel axial positioning sleeve is generally sleeved at one end of the camshaft 10 for oil-gas separation, which is close to a timing chain cover 40 of the engine.
In this embodiment, the engine includes the above camshaft 10 for oil-gas separation, and the camshaft 10 for oil-gas separation is the camshaft 10 for oil-gas separation in the above embodiment, and specific structures may refer to the description in the above embodiment, and are not described herein again. Since the camshaft 10 that can be used for oil-gas separation in the above-described embodiment is employed in the present embodiment, the present embodiment provides an engine having all the advantageous effects of the camshaft 10 that can be used for oil-gas separation in the above-described embodiment.
Optionally, in some embodiments, the outer wall of the signal wheel circumferential positioning sleeve 50 is provided with a second through hole 501, and the second through hole 501 is communicated with the first through hole 102. Through the arrangement of the second through hole 501, the oil-gas mixture in the crankcase 30 can enter the oil-gas separation chamber 101 through the second through hole 501 and the first through hole 102.
Optionally, a perpendicular projection portion of the second through hole 501 on the outer wall of the camshaft 10 is located outside the first through hole 102.
It should be understood that the perpendicular projection of the second through hole 501 on the camshaft 10 is located outside the first through hole 102, and it can also be understood that the outer wall surface portion of the camshaft 10 corresponds to the second through hole 501, wherein the outer wall surface of the camshaft 10 refers to the outer wall of the camshaft 10 except the first through hole 102. Because the vertical projection part of the second through hole 501 on the camshaft 10 is located outside the first through hole 102, when the oil-gas mixture enters the first through hole 102 through the second through hole 501, the oil-gas mixture can touch the part, corresponding to the second through hole 501, of the outer wall surface of the camshaft 10, so that the chance of touching the wall of the oil-gas mixture is increased.
In this embodiment, the vertical projection portion of the second through hole 501 on the camshaft 10 is located outside the first through hole 102, so that the chance of hitting the oil-gas mixture is increased, the engine oil particles in part of the oil-gas mixture are separated, and the oil-gas separation effect is improved
The embodiment of the utility model provides a vehicle is still provided, including foretell engine. The engine is the engine in the above embodiment, and the specific structure may refer to the description in the above embodiment, and is not described herein again. Since the engine in the above embodiment is adopted in the present embodiment, the present embodiment provides a vehicle having all the advantageous effects of the engine in the above embodiment.
Optionally, in some embodiments, the vehicle is a motorcycle. In other embodiments, the vehicle is an automobile.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A camshaft capable of being used for oil-gas separation is applied to an engine and is characterized in that an oil-gas separation cavity is arranged in the camshaft capable of being used for oil-gas separation, a first opening is formed in one end of the oil-gas separation cavity, and the oil-gas separation cavity is communicated with an exhaust gas pipe of the engine through the first opening; the outer wall of the camshaft for oil-gas separation is provided with a first through hole, and the oil-gas separation cavity is communicated with the crankcase of the engine through the first through hole, so that oil-gas mixture in the crankcase enters the oil-gas separation cavity through the first through hole.
2. The camshaft usable for oil-gas separation according to claim 1, wherein the first through-hole is plural in number.
3. The camshaft for oil-gas separation according to claim 2, wherein a plurality of the first through holes are provided at intervals in a circumferential direction of the camshaft for oil-gas separation.
4. The camshaft usable for oil-gas separation according to claim 2, wherein a plurality of the first through holes are provided at intervals in an axial direction of the camshaft usable for oil-gas separation.
5. The camshaft for air-oil separation as set forth in claim 1, wherein the first through hole is provided at an end of the camshaft for air-oil separation near a timing chain cover of the engine.
6. An engine, characterized by comprising a signal wheel circumferential positioning sleeve and the camshaft for oil-gas separation as claimed in any one of claims 1 to 5; the signal wheel circumferential positioning sleeve is sleeved on the camshaft which can be used for oil-gas separation.
7. The engine of claim 6, wherein the outer wall of the signal wheel circumferential locating sleeve is provided with a second through hole, and the second through hole is communicated with the first through hole.
8. The engine according to claim 7, characterized in that a perpendicular projection portion of the second through hole on the outer wall of the camshaft available for oil-gas separation is located outside the first through hole.
9. A vehicle comprising an engine as claimed in any one of claims 6 to 8.
10. The vehicle of claim 9, wherein the vehicle is a motorcycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121213644.0U CN214660428U (en) | 2021-06-01 | 2021-06-01 | Camshaft, engine and vehicle that can be used to oil-gas separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121213644.0U CN214660428U (en) | 2021-06-01 | 2021-06-01 | Camshaft, engine and vehicle that can be used to oil-gas separation |
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| Publication Number | Publication Date |
|---|---|
| CN214660428U true CN214660428U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121213644.0U Active CN214660428U (en) | 2021-06-01 | 2021-06-01 | Camshaft, engine and vehicle that can be used to oil-gas separation |
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| CN (1) | CN214660428U (en) |
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- 2021-06-01 CN CN202121213644.0U patent/CN214660428U/en active Active
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