Protection mechanism and oil-gas separator

Abstract

The utility model relates to the technical field of PCV systems, in particular to a protection mechanism and an oil-gas separator, which comprise an anti-freezing unit, the anti-freezing unit comprises a first gas chamber, a second gas chamber, protection filter cotton and a waste gas port, the protection filter cotton is arranged between the first gas chamber and the second gas chamber, one end of the protection filter cotton is provided with the waste gas port, and the other end of the protection filter cotton is provided with the oil-gas separator. The separation body comprises a mounting base and an intake manifold, the mounting base is arranged at one end of the separation body, the intake manifold is arranged on the separation body, turbid gas on the top of an engine can be swept by the oil-gas separator which is integrated on the oil-gas separator, and turbid gas in a crankcase of the engine can be swept by the oil-gas separator which is connected with a cylinder body. In this way, internal gas can flow comprehensively, water vapor generated by combustion at low temperature is prevented from being gathered, the internal water vapor content during shutdown is reduced, and finally the freezing thickness of condensate water is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCV system technical field, especially a protection mechanism and oil gas separator. BACKGROUND

[0002] Crankcase forced ventilation system (abbreviation PCV system) principle: through utilizing the pressure difference between the gas pressure in the engine crankcase and the intake passage to make the gas in the crankcase be absorbed into the intake manifold as intake and burn, usually contains parts have: oil gas separator, check valve, intake and exhaust pipeline etc., the system needs to control the engine crankcase pressure at the micro negative pressure level on one hand, meet the national regulations, at the same time, need to filter the turbid gas of crankcase, ensure that the fresh air after filtration enters the combustion chamber and burns, and the separated oil returns to the crankcase, which not only can reduce the consumption of oil and ensure the normal amount of engine oil, but also can reduce the emission of S compound caused by oil combustion, since the system has multiple check valve control systems, the reliability of check valve work will determine the stability of the system, once the check valve appears abnormal work, or the gas passage appears blockage, the engine will appear crankcase pressure increase, and further lead to oil leakage phenomenon, and the engine emission will also be overproof, and the pressure serious increase will also lead to the piston ring unable to seal, the engine blowby increases, and finally lead to the engine unable to work, the most common failure mode of check valve abnormal work or gas passage blockage is the system anti-icing ability, especially in winter-30 DEG C below, the engine incomplete combustion produces a large amount of water vapor, when the engine does not run, will be cooled and condensed in the check valve or narrow channel of these small gaps, when the engine starts again, ice blockage is produced, or the separated fresh air is blocked by low-temperature cooling in the pipeline connected to the intake manifold, therefore, the anti-icing ability of PCV system is the important function requirement for testing the reliability of the system. SUMMARY

[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above or the problem of easy icing at low temperature and poor gas scavenging in the prior art, the utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a protection mechanism.

[0006] To solve the above prior art in low temperature, the gas is not easy to freeze, the technical problems of poor scavenging, the utility model provides the following technical scheme: a protection mechanism, including,

[0007] Anti-freezing unit, the anti-freezing unit includes first air chamber, second air chamber, protective filter cotton and waste gas port, the first air chamber and second air chamber are provided with protective filter cotton, one end of the protective filter cotton is provided with waste gas port.

[0008] As a preferred scheme of the utility model protection mechanism, wherein: one end of the first air chamber is provided with the second air chamber, and one end of the first air chamber away from the second air chamber is provided with the air inlet chamber.

[0009] As a preferred scheme of the utility model protection mechanism, wherein: the first air chamber, the second air chamber and the air inlet chamber are interconnected.

[0010] As a preferred scheme of the utility model protection mechanism, wherein: one end of the protective filter cotton is provided with at least two waste gas ports, the waste gas port is provided with a circular truncated cone structure, and the protective filter cotton is arranged at the narrower end close to the waste gas port.

[0011] The beneficial effects of the protection mechanism of the utility model: integrated on the oil-gas separator can sweep the turbid gas on the top of the engine, and the connecting cylinder can sweep the turbid gas in the engine crankcase, so that the internal gas can flow comprehensively, prevent the water vapor generated by combustion from gathering at low temperature, reduce the internal water vapor content when stopping, and finally reduce the thickness of the frozen condensate water.

[0012] In view of the relatively low reliability of the check valve in actual use.

[0013] To solve the above-mentioned technical problem of relatively low reliability of the check valve, the utility model further provides the following technical scheme: an oil-gas separator, a separation body, the separation body is provided with an anti-freezing unit, the separation body includes a mounting base and an air inlet manifold, one end of the separation body is provided with the mounting base, and the separation body is provided with the air inlet manifold.

[0014] As a preferred scheme of the utility model oil-gas separator, wherein: the mounting base is provided with a lower connecting pipe, and one end of the lower connecting pipe is provided with a low load channel.

[0015] As a preferred scheme of the utility model oil-gas separator, wherein: the mounting base is provided with a first screw hole and a second screw hole, and the mounting base is provided with a pressure regulating valve.

[0016] As an optimal scheme of the oil-gas separator, the auxiliary one-way valve is further arranged on the separation body, one end of the auxiliary one-way valve is provided with a valve connecting pipe, and the other end of the auxiliary one-way valve is provided with a one-way valve port.

[0017] As an optimal scheme of the oil-gas separator, the auxiliary one-way valve is further arranged on the separation body, one end of the auxiliary one-way valve is provided with a valve connecting pipe, and the other end of the auxiliary one-way valve is provided with a one-way valve port.

[0018] As an optimal scheme of the oil-gas separator, the auxiliary one-way valve is further arranged on the separation body, one end of the auxiliary one-way valve is provided with a valve connecting pipe, and the other end of the auxiliary one-way valve is provided with a one-way valve port.

[0019] The oil-gas separator has the beneficial effects that the one-way valve is connected to the separator, the double-layer sealing structure is arranged in the one-way valve, when the medium passes through the inner valve core, the inner valve core is better recovered under the action of the inner rebounding piece, so that the protection is better, and the protection effect of the valve body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present application;

[0023] Figure 3 It is a schematic diagram of the overall structure of the one-way valve;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the one-way valve. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0026] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can be practiced without resorting to the other ways different from the description, and the person skilled in the art can make similar generalization without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0027] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean that the embodiment is mutually exclusive with other embodiments.

[0028] Embodiment 1

[0029] Referring to Figure 1 For the first embodiment of the present application, the embodiment provides an oil-gas separator, which generates integrated oil-gas separator that can sweep the turbid gas on the top of the engine, and connects the cylinder body that can sweep the turbid gas inside the engine crankcase, so that the internal gas can flow comprehensively, prevent the water vapor generated by combustion from gathering at low temperature, reduce the internal water vapor content when stopping, and finally reduce the thickness of the frozen condensate water. It comprises a separation body 200, a freeze-proof unit 100 is arranged in the separation body 200, the separation body 200 comprises a mounting base 201 and an intake manifold 202, one end of the separation body 200 is provided with the mounting base 201, the separation body 200 is provided with the intake manifold 202, the mounting base 201 is provided with a lower connecting pipe 203, one end of the lower connecting pipe 203 is provided with a low-load channel, the mounting base 201 is provided with a first screw hole 204 and a second screw hole 205, and the mounting base 201 is provided with a pressure regulating valve 206.

[0030] In use, through two fresh air compensation channels, the internal gas of the crankcase is swept in all directions, the internal water vapor is prevented from gathering, the gas entering the inside of the separation body 200 is less mixed together, the low-load gas outlet channel is externally connected, the internal channel of the cylinder head is connected to the intake manifold 202, and the risk of icing caused by low temperature of the external connection of the pipeline can be eliminated.

[0031] Embodiment 2

[0032] Referring to Figure 2The utility model discloses a second embodiment, unlike the last embodiment, the embodiment provides a protection mechanism, solve the problem of easy icing when low temperature, and the gas scavenging is not smooth, it includes anti -icing unit 100, and anti -icing unit 100 includes first air chamber 101, second air chamber 102, protection filter cotton 104 and waste gas air port 105, and the protection filter cotton 104 is arranged between first air chamber 101 and second air chamber 102, and one end of protection filter cotton 104 is provided with waste gas air port 105, and one end of first air chamber 101 is provided with second air chamber 102, and the end away from second air chamber 102 of first air chamber 101 is provided with air inlet chamber 103;

[0033] Preferably, the first air chamber 101, the second air chamber 102 and the air inlet chamber 103 are interconnected, one end of the protection filter cotton 104 is provided with at least two waste gas air ports 105, the waste gas air port 105 is provided in a circular truncated cone structure, and the protection filter cotton 104 is arranged at the narrower end near the waste gas air port 105.

[0034] In use, by the intercommunication of the first air chamber 101 and the second air chamber 102, and the protection filter cotton 104 with a thickness of at least two millimeters arranged between the two air chambers, a double-channel fresh air compensation passage is designed, one integrated in the oil-gas separator, and the other connected to the cylinder block. The one integrated in the oil-gas separator can sweep the turbid gas on the top of the engine, and the other connected to the cylinder block can sweep the turbid gas in the engine crankcase. In this way, the internal gas can flow comprehensively, the water vapor generated by combustion can be prevented from gathering at low temperature, the internal water vapor content can be reduced when stopping, and finally the thickness of the frozen condensate water can be reduced.

[0035] Embodiment 3

[0036] Reference Figure 3 And Figure 4 For the third embodiment of the utility model, unlike the last embodiment, the embodiment provides a solution. It includes a separation body 200, which is further provided with an auxiliary one-way valve 207. One end of the auxiliary one-way valve 207 is provided with a valve connecting pipe 207a. The other end of the auxiliary one-way valve 207 is provided with a one-way valve port 207b. An inner connecting piece 207c is arranged in the auxiliary one-way valve 207. An elastic connecting piece 207e is arranged on the inner connecting piece 207c. The size of the elastic connecting piece 207e is larger than the size of the valve connecting pipe 207a. The size of the inner connecting piece 207c is adapted to the size of the one-way valve port 207b.

[0037] In use, when there is medium through the valve connecting pipe 207a into the auxiliary check valve 207 inside, it will be under the action of force, the sealing rubber ring 207d is lifted, and at the same time lifting the sealing rubber ring 207d, the inner connecting piece 207c will also be lifted, thereby compressing the elastic connecting piece 207e, so that the valve core inside the auxiliary check valve 207 is opened, and after the internal medium passes, due to the lack of force, under the action of the elastic connecting piece 207e, the inner connecting piece 207c will reset together with the sealing rubber ring 207d.

[0038] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible in light of the teachings of this disclosure without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, dimensions, sizes, structures, shapes and proportions of the various elements, as well as parameters values and the like that depend on the specific use can be varied, and the examples shown are by way of exemplary embodiments. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "means plus function" clauses are intended to cover the structures described herein as performing claimed functions and not only structural equivalents, but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the specific embodiments described herein, but only by the claims that follow, which include all the equivalents of the subject matter recited therein. It is therefore desired that what is claimed be protected by the breadth of the claims hereinafter.

[0039] Also, to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described nor can as- considered apparent those features associated with the best mode for carrying out the present application, or those features that are irrelevant to enabling the present application.

[0040] It is to be understood that the development of the inventive technology is based on the recognition of the problems and deficiencies in the art and the provision of an alternative by the present application. A variety of structural and process alternatives are explicitly or implicitly described herein in the context of the exemplary embodiments. It is the intention of the present application to cover all such alternatives, equivalents, modifications and variations of the exemplary embodiments. It is further intended to cover any and all changes in the design, operation, and / or configuration of the exemplary embodiments that are within the skill and knowledge of those in the art, as represented by the level of the art to which this application pertains.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A safeguard mechanism, characterized by: Including, The anti-freezing unit (100) comprises a first air chamber (101), a second air chamber (102), a protective filter cotton (104) and a waste gas port (105), the protective filter cotton (104) is arranged between the first air chamber (101) and the second air chamber (102), and one end of the protective filter cotton (104) is provided with the waste gas port (105).

2. The guard mechanism of claim 1, wherein: One end of the first air chamber (101) is provided with the second air chamber (102), and one end of the first air chamber (101) away from the second air chamber (102) is provided with an air inlet chamber (103).

3. The guard mechanism of claim 2, wherein: The first air chamber (101), the second air chamber (102) and the air inlet chamber (103) are communicated with each other.

4. The guard mechanism of claim 3, wherein: One end of the protective filter cotton (104) is provided with at least two waste gas ports (105), the waste gas port (105) is provided in a circular truncated cone structure, and the protective filter cotton (104) is arranged at a relatively narrow end close to the waste gas port (105).

5. An oil and gas separator characterized by: The protective mechanism of any one of claims 1-4 is included, and a separation body (200) is arranged with the anti-freezing unit (100), the separation body (200) comprises a mounting base (201) and an air inlet manifold (202), one end of the separation body (200) is provided with the mounting base (201), and the air inlet manifold (202) is arranged on the separation body (200).

6. The oil and gas separator of claim 5, wherein: The mounting base (201) is provided with a lower connecting pipe (203), and one end of the lower connecting pipe (203) is provided with a low-load channel.

7. The oil and gas separator of claim 6, wherein: The mounting base (201) is provided with a first screw hole (204) and a second screw hole (205), and the mounting base (201) is provided with a pressure regulating valve (206).

8. The oil and gas separator of claim 7, wherein: The separation body (200) is further provided with an auxiliary one-way valve (207), one end of the auxiliary one-way valve (207) is provided with a valve connecting pipe (207a), and the other end of the auxiliary one-way valve (207) is provided with a one-way valve port (207b).

9. The oil and gas separator of claim 8, wherein: The auxiliary one-way valve (207) is provided with an inner connecting piece (207c), and the inner connecting piece (207c) is provided with an elastic connecting piece (207e).

10. The oil and gas separator of claim 9, wherein: The inner connecting piece (207c) is further provided with an elastic connecting piece (207e), the size of the elastic connecting piece (207e) is greater than the size of the valve connecting pipe (207a), and the size of the inner connecting piece (207c) and the size of the one-way valve port (207b) are matched with each other.

Images