Engine shell, engine and vehicle

Abstract

The utility model discloses an engine shell, an engine and a vehicle. The engine shell comprises a guide pipeline and an exhaust pipeline, the guide pipeline communicates with an engine oil storage cavity of an engine, the first end of the exhaust pipeline communicates with the guide pipeline, and the second end of the exhaust pipeline communicates with the internal space of the engine. The exhaust pipeline is arranged for the guide pipeline, so that gas can be conveniently exhausted from the guide pipeline when the oil dipstick is inserted, the gas is prevented from being gathered in the guide pipeline to influence the height of lubricating oil, and the liquid level indication accuracy of the oil dipstick is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of engines, and more specifically to an engine housing, an engine and a vehicle. Background Art

[0002] In the prior art, the external oil dipstick structure of the engine does not take into account that after the oil dipstick is installed in the oil dipstick duct, the sealing ring will form a sealed cavity with the oil below. As the sealing ring moves downward, the liquid level below will be lowered by the air pressure, causing the oil dipstick to indicate a liquid level lower than the actual liquid level, which will lead to an incorrect judgment on the engine maintenance needs.

[0003] Therefore, it is necessary to provide an engine housing, an engine and a vehicle to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides an engine housing, comprising:

[0006] A guide pipe, the guide pipe being connected to an oil storage chamber of the engine;

[0007] An exhaust pipe, wherein a first end of the exhaust pipe is communicated with the guide pipe, and a second end of the exhaust pipe is communicated with an internal space of the engine.

[0008] Optionally, after the oil dipstick is inserted into and fixed to the guide pipe, the position where the first end of the exhaust pipe communicates with the guide pipe can be lower than the sealing ring of the handle of the oil dipstick.

[0009] Optionally, the guide pipe comprises:

[0010] a first section of the pipeline, wherein a first end of the first section of the pipeline is connected to an oil storage chamber of the engine;

[0011] The second section of the pipe is arranged at the second end of the first section of the pipe, the second section of the pipe is used to be inserted into the extension pipe, and the diameter of the second section of the pipe is larger than that of the first section of the pipe.

[0012] Optionally, the position where the first end of the exhaust pipe is connected to the guide pipe is lower than the second section of the pipe.

[0013] Optionally, the engine housing further comprises:

[0014] The skirt frame, the exhaust duct, the guide duct and the skirt frame are manufactured integrally.

[0015] Optionally, the first end of the first section of the pipe is close to the bottom of the skirt frame, and the second section of the pipe is close to the top of the skirt frame.

[0016] Optionally, the first end of the exhaust duct is lower than the second end of the exhaust duct.

[0017] Optionally, the second end of the exhaust pipe is in communication with a crankcase of the engine.

[0018] Optionally, the second end of the exhaust pipe is communicated with a lubricating oil return chamber of the engine.

[0019] Optionally, the axial length of the guide pipe is 100-120 mm;

[0020] The included angle between the axial direction of the guide pipe and the bottom plane of the skirt rack is 50-70 degrees.

[0021] Optionally, the distance between the top center of the guide pipe and the top of the skirt frame is 10-20 mm;

[0022] The distance between the top center of the guide pipe and the side of the skirt frame is 50-70 mm.

[0023] Optionally, the axial length of the exhaust pipe is 40-60 mm;

[0024] The distance between the center of the second end of the exhaust duct and the top of the skirt frame is 5-10 mm;

[0025] The included angle between the axial direction of the exhaust duct and the top plane of the skirt frame is 30-40 degrees.

[0026] A second aspect of the utility model provides an engine, comprising an engine housing according to any one of the above technical solutions.

[0027] Optionally, the engine further comprises:

[0028] an extension pipe, the extension pipe being connected to the guide pipe;

[0029] An oil dipstick is inserted into the guide pipe through the extension pipe.

[0030] A third aspect of the utility model provides a vehicle, comprising an engine according to any one of the above technical solutions.

[0031] According to an engine housing, an engine and a vehicle of the utility model, the engine housing is provided with an exhaust pipe for the guide pipe, so that gas is discharged from the guide pipe when the oil dipstick is inserted, thereby avoiding gas accumulation in the guide pipe and affecting the height of the lubricating oil, and improving the accuracy of the oil dipstick indicating the liquid level. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0033] Figure 1 A three-dimensional diagram of a handle of an oil dipstick in the prior art;

[0034] Figure 2 A three-dimensional diagram of a skirt frame and a guide pipe in the prior art;

[0035] Figure 3 It is a front view of a skirt frame and a guide pipe according to a preferred embodiment of the utility model;

[0036] Figure 4 A three-dimensional diagram of a skirt frame and a guide pipe according to a preferred embodiment of the utility model;

[0037] Figure 5 A cross-sectional view (partial) of a skirt frame and a guide pipe according to a preferred embodiment of the utility model;

[0038] Figure 6 It is a front view (partial) of a skirt frame and a guide pipe according to a preferred embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 1: Dipstick 101: Handle

[0041] 102: Sealing ring 2: Skirt

[0042] 3: Guide pipe 301: The first section of the pipe

[0043] 302: Second section of pipeline 4: Extended pipeline

[0044] 5: Exhaust duct DETAILED DESCRIPTION

[0045] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0046] In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

[0047] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0048] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0049] The oil dipstick structure in the prior art is as follows: Figure 1 , Figure 2 As shown, a pipe seat is provided on the skirt frame 2, and a guide pipe 3 is installed on the pipe seat. An extension pipe 4 is also provided on the top of the guide pipe 3, and the extension pipe 4 is embedded and installed on the top of the guide pipe 3. The oil dipstick 1 is inserted into the guide pipe 3 through the extension pipe 4, and the handle 101 of the oil dipstick 1 is fixed to the top of the extension pipe 4, and the sealing ring 102 of the oil dipstick 1 and the top of the extension pipe 4 can form a sealed connection structure.

[0050] The existing oil dipstick structure does not take into account that after the oil dipstick 1 is installed in the extension pipe 4 and the guide pipe 3, the sealing ring 102 will form a sealed cavity with the oil below. As the sealing ring 102 moves downward, the liquid level below will be reduced by the air pressure, causing the oil dipstick 1 to indicate a liquid level lower than the actual liquid level, which will lead to a wrong judgment on the engine maintenance needs.

[0051] The utility model discloses an engine casing, an engine and a vehicle.

[0052] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0053] like Figure 3 , Figure 4 As shown, in a preferred embodiment, an engine housing includes: a guide pipe 3 and an exhaust pipe 5;

[0054] The guide pipe 3 is connected to the oil storage chamber of the engine, which is usually located at the lower part of the engine crankcase, and stores oil, i.e. lubricating oil;

[0055] The first end of the exhaust pipe 5 is connected to the guide pipe 3, and the second end of the exhaust pipe 5 is connected to the internal space of the engine. The second end of the exhaust pipe 5 can be connected to the crankcase of the engine, or other lubricating oil return cavity, as long as the gas in the guide pipe 3 can be discharged.

[0056] When the dipstick 1 is inserted into the guide pipe 3, as the handle 101 of the dipstick 1 enters the extension pipe 4 (the extension pipe 4 is arranged at the top of the guide pipe 3), the volume above the lubricating oil level in the guide pipe 3 becomes smaller, and the air therein is discharged to the outside through the exhaust pipe 5. The air pressure will not change, and the lubricating oil level in the guide pipe 3 will not be affected by the insertion of the dipstick 1.

[0057] The engine housing in this embodiment is provided with an exhaust pipe for the guide pipe, so that gas can be discharged from the guide pipe when the oil dipstick is inserted, thereby preventing gas from gathering in the guide pipe and affecting the height of the lubricating oil, thereby improving the accuracy of the oil dipstick indicating the liquid level.

[0058] In one embodiment, after the dipstick 1 is inserted into and fixed to the guide pipe 3, the position where the first end of the exhaust pipe 5 is connected to the guide pipe 3 can be lower than the sealing ring 102 of the handle 101 of the dipstick 1, ensuring that the exhaust pipe 5 can always be vented.

[0059] like Figure 1 As shown, the handle 101 of the dipstick 1 is provided with a sealing ring 102. When the dipstick 1 is inserted into the guide pipe 3, as the handle 101 of the dipstick 1 enters the extension pipe 4, the sealing ring 102 is in close contact with the inner wall of the extension pipe 4 to form a seal. After the dipstick 1 is inserted into place, it is fixed to the extension pipe 4. The sealing ring 102 can prevent the lubricating oil from leaking from the extension pipe 4.

[0060] However, during the process of inserting the dipstick 1 into the guide pipe 3, the air in the extension pipe 4 and the guide pipe 3 will be compressed because the sealing ring 102 is in close contact with the inner wall of the extension pipe 4. By setting the first end of the exhaust pipe 5 to be lower than the sealing ring 102 of the handle 101 of the dipstick 1, it can be ensured that the exhaust pipe 5 can always be exhausted without being blocked by the sealing ring 102.

[0061] In one embodiment, if Figure 3 , Figure 4 As shown, the guide pipe 3 includes:

[0062] A first section of the pipeline 301, a first end of the first section of the pipeline 301 is connected to the oil storage chamber of the engine, and the oil storage chamber is usually located at the lower part of the engine crankcase, that is, the location where the oil pan is set;

[0063] The second pipe section 302 is arranged at the second end of the first pipe section 301 . The second pipe section 302 is used to insert the extension pipe 4 . The diameter of the second pipe section 302 is larger than that of the first pipe section 301 , so as to facilitate the extension pipe 4 to be inserted into the guide pipe 3 .

[0064] In one embodiment, the position where the first end of the exhaust pipe 5 is connected to the guide pipe 3 is lower than the second pipe section 302. Through this setting, the first end of the exhaust pipe 5 avoids the second pipe section 302 to avoid affecting the connection between the extension pipe 4 and the second pipe section 302.

[0065] In one embodiment, the engine housing further comprises:

[0066] The skirt frame 2, the exhaust pipe 5, the guide pipe 3 and the skirt frame 2 are manufactured in one piece. By manufacturing in one piece, the sealing performance of the joints of the exhaust pipe 5, the guide pipe 3 and the skirt frame 2 is improved, and the manufacturing efficiency of the engine housing is also improved.

[0067] In one embodiment, the first end of the first section of the pipe 301 is close to the bottom of the skirt frame 2, and the second section of the pipe 302 is close to the top of the skirt frame 2. Through this arrangement, the length of the guide pipe 3 is extended, which facilitates the arrangement of the exhaust pipe 5 and achieves communication with the exhaust pipe 5.

[0068] In one embodiment, the first end of the exhaust pipe 5 is lower than the second end of the exhaust pipe 5. That is, the vent hole on the guide pipe 3 is required to be higher than the vent hole of the crankcase, and the exhaust pipe 5 is obliquely connected to the crankcase from the guide pipe 3. The positions of the openings at both ends of the exhaust pipe 5 are determined by the oil level calibration results. It is required that when the vehicle is restored to a horizontal state, the two ends of the exhaust pipe 5 can be connected, and the dipstick 1 can correctly indicate the lubricating oil level. At the same time, when the engine tilts toward the dipstick 1, the lubricating oil will enter the exhaust pipe 5 to a certain extent due to the effect of gravity, and the overall oil level inside the engine will drop, which can reduce the risk of crankshaft oil stirring.

[0069] In one embodiment, the second end of the exhaust pipe 5 is connected to the vent hole of the crankcase of the engine. Since the engine oil is volatile, the volatile engine oil gas can be filtered in conjunction with the engine crankshaft ventilation system. Compared with directly discharging the gas into the atmosphere, the engine oil consumption rate is reduced and it is more environmentally friendly.

[0070] In one embodiment, the second end of the exhaust pipe 5 is connected to the lubricating oil return chamber of the engine. The lubricating oil return chamber refers to a structure such as a pipe that returns lubricating oil from other locations to the engine, and is ultimately connected to the oil storage chamber, so that the gas in the guide pipe 3 can be discharged normally and avoided from being discharged into the atmosphere.

[0071] In one embodiment, if Figure 5 , Figure 6 As shown, the axial length of the guide pipe 3 is 100-120 mm, which is convenient for connecting the exhaust pipe 5 on the guide pipe 3; it can be selected according to the actual structure of the engine, for example, 108 mm can be selected;

[0072] The included angle between the axial direction of the guide pipe 3 and the bottom plane of the skirt frame 2 is 50-70 degrees, which is convenient for connecting the extension pipe 4 and is selected according to the actual structure of the engine, for example, 61 degrees can be selected.

[0073] In one embodiment, if Figure 5 , Figure 6 As shown, the distance between the top center of the guide pipe 3 and the top of the skirt frame 2 is 10-20 mm; it can be selected according to the actual structure of the engine, for example, 17 mm can be selected;

[0074] The distance between the top center of the guide pipe 3 and the side of the skirt frame 2 is 50-70 mm, which is selected according to the actual structure of the engine, for example, 64 mm can be selected.

[0075] In one embodiment, if Figure 5 , Figure 6 As shown, the axial length of the exhaust pipe 5 is 40-60 mm, which is convenient for connecting the guide pipe 3 and the crankcase; it can be selected according to the actual structure of the engine, for example, 47 mm can be selected;

[0076] The distance between the center of the second end of the exhaust pipe 5 and the top of the skirt frame 2 is 5-10 mm; it can be selected according to the actual structure of the engine, for example, 7 mm can be selected;

[0077] The included angle between the axial direction of the exhaust pipe 5 and the top plane of the skirt frame 2 is 30-40 degrees, which is selected according to the actual structure of the engine, for example, 35 degrees can be selected.

[0078] An embodiment of the utility model further provides an engine, comprising the engine housing according to any one of the above embodiments.

[0079] In one embodiment, the engine further comprises:

[0080] An extension pipe 4 is connected to the guide pipe 3;

[0081] The dipstick 1 is inserted into the guide pipe 3 through the extension pipe 4.

[0082] The extension pipe 4 can be a rubber tube, which is embedded and installed on the top of the guide pipe 3, and is specifically plugged into the second section of the pipe 302 to form a sealed connection structure.

[0083] An embodiment of the utility model further provides a vehicle, comprising the engine described in any one of the above embodiments.

[0084] The utility model provides an engine housing, an engine and a vehicle, which have the following characteristics:

[0085] The utility model extends the oil dipstick guide pipe structure on the skirt frame, and opens a vent hole connected to the crankcase on this section (to ensure that the highest oil level does not exceed the hole). Such a structural feature ensures that after the oil dipstick seal ring begins to fit the extended pipe, the air under the seal ring can be discharged in time, ensuring the accuracy of the oil dipstick indicating the liquid level.

[0086] Compared with the prior art, the utility model simplifies the external oil dipstick assembly structure, increases the length of the oil dipstick guide pipe and integrates it on the skirt frame. Such a structure can avoid oil leakage caused by rubber sealing problems, and the integral molding with the skirt frame is conducive to production and manufacturing, reducing the assembly process and reducing costs.

[0087] The utility model is more environmentally friendly: in order to achieve the exhaust of the oil dipstick guide pipe, the oil dipstick guide pipe is connected to the crankcase. The oil is volatile, and the volatile oil gas can be filtered in conjunction with the engine crankshaft ventilation system. Compared with directly discharging the gas into the atmosphere, the utility model reduces the oil consumption rate and is more environmentally friendly.

[0088] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0089] In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0090] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0091] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0092] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model.

Claims

1. An engine housing, characterized in that: include: A guide pipe (3), the guide pipe (3) being connected to an oil storage chamber of the engine; An exhaust pipe (5), wherein a first end of the exhaust pipe (5) is connected to the guide pipe (3), and a second end of the exhaust pipe (5) is connected to the internal space of the engine.

2. The engine housing according to claim 1, characterized in that: After the oil dipstick (1) is inserted into and fixed to the guide pipe (3), the position where the first end of the exhaust pipe (5) communicates with the guide pipe (3) can be lower than the sealing ring (102) of the handle (101) of the oil dipstick (1).

3. The engine housing according to claim 1, characterized in that: The guide pipe (3) comprises: A first section of the pipeline (301), wherein a first end of the first section of the pipeline (301) is connected to an oil storage chamber of the engine; A second section of pipe (302), the second section of pipe (302) is arranged at the second end of the first section of pipe (301), the second section of pipe (302) is used to be inserted into the extension pipe (4), and the diameter of the second section of pipe (302) is greater than that of the first section of pipe (301).

4. The engine housing according to claim 3, characterized in that: The position at which the first end of the exhaust pipe (5) communicates with the guide pipe (3) is lower than the second section of the pipe (302).

5. The engine housing according to claim 3, characterized in that: Also includes: The skirt frame (2), the exhaust pipe (5), the guide pipe (3) and the skirt frame (2) are manufactured integrally.

6. The engine housing according to claim 5, characterized in that: The first end of the first section of the pipe (301) is close to the bottom of the skirt frame (2), and the second section of the pipe (302) is close to the top of the skirt frame (2).

7. The engine housing according to claim 1, characterized in that: The first end of the exhaust duct (5) is lower than the second end of the exhaust duct (5).

8. The engine housing according to claim 1, characterized in that: The second end of the exhaust pipe (5) is in communication with the crankcase of the engine.

9. The engine housing according to claim 1, characterized in that: The second end of the exhaust pipe (5) is in communication with the lubricating oil return chamber of the engine.

10. The engine housing according to claim 5, characterized in that The axial length of the guide pipe (3) is 100-120 mm; The included angle between the axial direction of the guide pipe (3) and the bottom plane of the skirt frame (2) is 50-70 degrees.

11. The engine housing according to claim 5, characterized in that: The distance between the top center of the guide pipe (3) and the top of the skirt frame (2) is 10-20 mm; The distance between the top center of the guide pipe (3) and the side of the skirt frame (2) is 50-70 mm.

12. The engine housing according to claim 5, characterized in that The axial length of the exhaust pipe (5) is 40-60 mm; The distance between the center of the second end of the exhaust pipe (5) and the top of the skirt frame (2) is 5-10 mm; The included angle between the axial direction of the exhaust pipe (5) and the top plane of the skirt frame (2) is 30-40 degrees.

13. An engine, characterized in that: Comprising an engine housing according to any one of claims 1-12.

14. The engine according to claim 13, characterized in that Also includes: An extension pipe (4), wherein the extension pipe (4) is connected to the guide pipe (3); An oil dipstick (1) is inserted into the guide pipe (3) through the extension pipe (4).

15. A vehicle, characterized in that: Comprising an engine according to any one of claims 13-14.

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