CN217602806U - Engine oil tank and engine - Google Patents
Engine oil tank and engine Download PDFInfo
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- CN217602806U CN217602806U CN202221086692.2U CN202221086692U CN217602806U CN 217602806 U CN217602806 U CN 217602806U CN 202221086692 U CN202221086692 U CN 202221086692U CN 217602806 U CN217602806 U CN 217602806U
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- oil tank
- tank
- fuel
- engine
- oil
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Abstract
The utility model discloses an engine oil tank, include: the fuel tank body consists of a fuel tank upper wall, a fuel tank lower wall and a fuel tank peripheral wall and is used for containing fuel; the oil filling neck is formed by upward protrusion of the upper wall of the oil tank, and the top end of the oil filling neck is provided with an oil filling port; the oil tank air cavity is formed by upward protrusion of the upper wall of the oil tank; the fuel tank cover is provided with a vent hole; wherein, the engine oil tank includes horizontal storage state and perpendicular storage state, wherein, during perpendicular storage state, the air vent top forms oil tank second air chamber, the volume of oil tank air chamber is not less than the volume of oil tank second air chamber to solve among the prior art oil leak, the pollution scheduling problem that produces when the engine oil tank is in perpendicular storage state.
Description
The utility model relates to a general gasoline engine field of vertical axis, in particular to engine oil tank and engine.
Background
A general vertical shaft engine is often used as a power device of a hand-push type mower. Generally, the working state and the non-working state of the mower are stored horizontally, and the storage mode in the non-working state occupies a large space, so that the non-working state of the conventional vertical shaft engine needs to be changed into a vertical storage mode in order to reduce the occupied space. However, because the vent hole of the fuel tank cover is communicated with the atmosphere, the vertical storage mode of the existing vertical axis engine can cause fuel to flow out of the vent hole, thereby not only wasting the fuel, but also polluting the environment and causing potential safety hazard.
Therefore, in order to solve the problems of convenience and safety of storage of the vertical axis general engine, the fuel tank and the engine are needed to be provided, fuel can be prevented from leaking through the vent hole in a vertical storage mode, the storage mode of the vertical axis engine is optimized, and potential safety hazards are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oil tank and engine to solve among the above-mentioned prior art vertical axis engine and deposit the technical problem that the oil leak appears in the mode perpendicularly under the non-operating condition.
In order to solve the above problems, the utility model provides a following technical scheme:
the utility model provides an engine oil tank, include: the fuel tank body consists of a fuel tank upper wall, a fuel tank lower wall and a fuel tank peripheral wall and is used for containing fuel; the oil filling neck is formed by upward protrusion of the upper wall of the oil tank, and the top end of the oil filling neck is provided with an oil filling port; the oil tank air cavity is formed by upward protrusion of the upper wall of the oil tank; the fuel tank cover is provided with a vent hole; the engine oil tank comprises a horizontal storage state and a vertical storage state, wherein in the vertical storage state, an oil tank second air cavity is formed above the vent hole, and the volume of the oil tank air cavity is not smaller than that of the oil tank second air cavity.
Further, refuel the neck and be located the one end of oil tank body, the oil tank air chamber is kept away from refuel the neck setting, make the oil tank air chamber with refuel the neck and pass through the oil tank body intercommunication.
Further, the tank air chamber is separate from and not in direct communication with the filler neck.
Furthermore, the central axis of the oiling neck and the included angle of the liquid level of the fuel in the fuel tank body are acute angles.
The utility model also discloses an engine, the engine includes the engine oil tank at least, the engine oil tank sets up oil tank air chamber and oil tank second air chamber, and the volume of oil tank air chamber is not less than the volume of oil tank second air chamber. When the engine oil tank is stored vertically, the level of fuel in the engine oil tank is below the fuel tank cap vent hole to prevent fuel from escaping through the fuel tank cap vent hole.
The utility model discloses for prior art gain following technological effect:
the upper wall of the oil tank of the utility model protrudes upwards to form an oil tank air cavity, when fuel is filled into the oil tank body through the oil filling port and does not pass through the lower end port of the oil filling neck, the rest part above the oil tank is the oil tank air cavity, and the existence of the oil tank air cavity prevents the fuel from being continuously added into the oil tank body, thereby controlling the oil filling amount; when the engine oil tank is vertically stored, an oil tank second air cavity is formed above the vent hole of the oil tank cover, at the moment, gas in the oil tank air cavity enters the oil tank second air cavity, and the volume of the oil tank air cavity is not smaller than that of the oil tank second air cavity, so that the fuel level in the engine oil tank is located below the vent hole of the oil tank cover to prevent fuel from overflowing through the vent hole of the oil tank cover. Through setting up oil tank air chamber and oil tank second air chamber to utilize gaseous elastic deformation in the engine oil tank can avoid engine oil tank to send oil leak, pollution scheduling problem when perpendicular storage state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described 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 creative efforts.
FIG. 1 is a schematic diagram of an engine oil tank;
FIG. 2 is a schematic view of a horizontally stored engine oil tank
FIG. 3 is a schematic illustration of a vertically stored engine oil sump;
FIG. 4 isbase:Sub>A schematic side view of the structure of FIG. 3A-A;
FIG. 5 is a schematic side view of the structure of FIG. 3B-B;
FIG. 6 is a schematic side view of the structure of FIG. 3C-C;
FIG. 7 is a schematic illustration of a horizontally stowed engine configuration;
FIG. 8 is a schematic illustration of the engine in a vertical storage configuration;
wherein, 1 is the oil tank body, 11 is the oil tank upper wall, 12 is the oil tank air chamber, 13 is fuel upper limit I, 14 is fuel containing chamber I, 15 is the oil tank perisporium, 16 is the oil tank lower wall, 17 is the oil tank roof, 2 is the oil tank lid, 21 is the air vent, 211 is fuel upper limit II, 22 is oil tank second air chamber, 23 is fuel containing chamber II, 3 is the neck of refueling, 31 is the oil filler hole, 4 is the engine oil tank, 5 is the engine.
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 only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-6, the utility model provides an engine oil tank 4, which comprises an oil tank body 1, wherein the oil tank body 1 is composed of an oil tank upper wall 11, an oil tank lower wall 16 and an oil tank peripheral wall 15 and is used for containing fuel oil; a filler neck 3 comprising a tubular structure protruding upward around the upper wall 11 of the fuel tank, the upper end of the filler neck 3 being a filler neck 31 equipped with a removable fuel tank cap 2, specifically the fuel tank cap 2 being provided with a vent hole 21 for balancing the air pressure inside and outside the fuel tank 4, the fuel tank cap 2 comprising external threads or other fixing devices, the filler neck 31 being provided with threads, the fuel tank cap 2 being threadedly connected to the filler neck 3, and further, the fuel tank cap 2 being further provided with a sealing ring (not shown in the figures, and not described herein) for sealing the filler neck 3 with the fuel tank cap 2 to prevent the fuel from leaking from the filler neck 31; and a tank air chamber 12 formed by the tank upper wall 11 projecting upward. The engine oil tank 4 comprises a horizontal storage state and a vertical storage state, wherein in the horizontal storage state, the tank air cavity 12 is used for storing gas in the engine oil tank, when the engine oil tank 4 is in the vertical storage state, a tank second air cavity 22 is formed above the air vent 21 on the tank cover 2 in the horizontal direction and the engine oil tank 4, and the tank second air cavity 22 is used for storing the gas in the engine oil tank; the volume of the tank air chamber 12 is not less than the volume of the tank second air chamber 22; in the present embodiment, although the formed tank body 1 is exemplified as being substantially "in-line", it may have other shapes in other embodiments.
As shown in fig. 7-8, the present invention further discloses an engine, wherein the engine at least comprises an engine oil tank 4, in this embodiment, the engine 5 is a vertical axis engine, the horizontal storage state of the engine oil tank 4 is the working state of the engine, at this time, the oil tank filler 31 faces upwards, and the crankshaft faces downwards vertically; the vertical storage state of the oil tank is the non-working state of the engine, at the moment, an oil filling port 31 of the oil tank is horizontally arranged, and a crankshaft is horizontally arranged; when the engine 5 is changed from the operating state to the non-operating state, since the volume of the tank air chamber 12 is not less than the volume of the tank second air chamber 22 above the horizontal direction of the vent hole 21 of the tank cap 2, the fuel does not reach the position above the vent hole 21 of the tank cap 2, thereby preventing the fuel from overflowing through the vent hole of the tank cap, i.e., solving the problem of fuel leakage in the vertical storage state of the engine.
In this embodiment, fuel tank body 1 forms fuel and holds cavity I14, and the below that refuels neck 3 and fuel tank upper wall 11 form the horizontal direction of lower extreme port holds cavity I14 for the fuel, through refuels neck 3 with the inside of fuel filling to fuel tank body 1, and fuel tank air cavity 12 keeps away from refuels neck 3 and sets up, and fuel tank air cavity 12 and refuels neck 3 are not direct intercommunication, hold cavity I14 through the fuel of fuel tank body 1 and are linked together.
In the embodiment, the central axis of the refueling neck 3 is not perpendicular to the liquid level of the fuel in the fuel tank body 1, the included angle between the refueling neck 3 and the fuel level is an acute angle, but in other embodiments, the central axis of the refueling neck 3 can be perpendicular to the liquid level of the fuel in the fuel tank body 1; in this embodiment, although the filler neck 3 is shown at a height above the height of the tank top wall 17, in practice there is no necessary relationship between the height of the filler neck 3 and the height of the tank top wall 17 above the tank air chamber 12, i.e. in other embodiments the height of the filler neck 3 may be less than or equal to the height of the tank top wall 17 above the tank air chamber 12.
In the present embodiment, as shown in fig. 4 to 5, the tank air chamber 12 is formed by upwardly protruding from the tank upper wall 11 away from the lower end port of the filler neck 3 when the engine tank 4 is in the horizontal storage state; the horizontal axis of the lower end port of the filler neck 3 forms an upper fuel limit 13, a tank air cavity 12 generating a locking gas volume is arranged above the upper fuel limit 13, and a fuel accommodating cavity I14 filled with an effective fuel volume is arranged below the upper fuel limit 13, namely the position of the lower end port of the filler neck 3 defines the highest point or level at which fuel can be filled into the tank body 1; the volume of the tank air chamber 12 is defined by the height of the upper fuel limit 13 to the lower surface of the tank top wall 17. When the fuel tank body 1 is filled with fuel, the fuel tank cap 2 is opened, fuel is injected from the filler neck 31, the fuel flows into the fuel accommodating chamber i 14 through the filler neck 3, and when the fuel reaches the lower end port of the filler neck 3 and passes over the lower end port of the filler neck 3, that is, reaches the upper limit 13 of the fuel shown in fig. 2, a part of the tank air chamber 12 is left above the fuel accommodating chamber i 14. Due to the function of the tank air chamber 12, the fuel can not enter the tank body 1 any more, so that quantitative refueling can be realized.
In the present embodiment, as shown in fig. 6, the tank second air chamber 22 is an internal volume of the engine tank 4 above the horizontal direction of the vent hole 21 of the tank cap 2 when the engine tank 4 is in the vertical storage state, the horizontal direction of the vent hole 21 is an upper limit ii 211 of fuel, above the upper limit ii 211 of fuel is the tank second air chamber 22, below is the fuel accommodating chamber ii 23; the position of the vent hole 21 defines the highest point or level of fuel filled in the fuel tank body 1 under the condition that the engine fuel tank 4 is vertically stored, namely the height of the upper limit II 211 of the fuel; because the volume of the oil tank air cavity 12 is not less than the volume of the oil tank second air cavity 22, when the engine is finished working from the horizontal state, the engine enters the non-working state for vertical storage after being cooled, the oil tank 4 of the engine is vertically stored at the moment, part of the fuel oil in the fuel oil accommodating cavity I14 in the horizontal storage state enters the oil tank air cavity 12, and the gas in the oil tank air cavity 12 enters the oil tank second air cavity 22; because the volume of the oil tank air cavity 12 is not less than the volume of the oil tank second air cavity 22, the gas in the oil tank air cavity 12 can enter the oil tank second air cavity 22 above the upper limit of fuel oil II 211 and even expand into the fuel oil accommodating cavity II 23 below the upper limit of fuel oil 13, the vent hole 21 of the oil tank cover 2 is positioned above the liquid level of the fuel oil and can be normally vented, but the fuel oil can not overflow out of the engine oil tank 4 through the vent hole 21, so that the problems of oil leakage, pollution and the like in the vertical storage state of the engine oil tank 4 are prevented.
The principle and the implementation of the present invention are explained by applying specific examples in this specification, and the above descriptions of the examples are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (5)
1. An engine oil tank comprising:
the fuel tank body consists of a fuel tank upper wall, a fuel tank lower wall and a fuel tank peripheral wall and is used for containing fuel;
the oil filling neck is formed by upwards protruding the upper wall of the oil tank, and the top end of the oil filling neck is provided with an oil filling port;
the oil tank air cavity is formed by upward protruding of the upper wall of the oil tank;
the fuel tank cover is provided with a vent hole;
the engine oil tank comprises a horizontal storage state and a vertical storage state, wherein in the vertical storage state, an oil tank second air cavity is formed above the vent hole, and the volume of the oil tank air cavity is not smaller than that of the oil tank second air cavity.
2. The engine oil tank of claim 1, wherein: refuel the neck and be located the one end of oil tank body, the oil tank air cavity is kept away from refuel the neck setting.
3. The engine oil sump of claim 1, wherein: the tank air chamber with refuel neck separation, not direct intercommunication.
4. The engine oil tank according to claim 2, wherein the central axis of the filler neck forms an acute angle with the level of fuel in the tank body.
5. An engine, the engine comprising at least an oil tank, characterized in that: the oil tank is an engine oil tank as defined in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086692.2U CN217602806U (en) | 2022-05-09 | 2022-05-09 | Engine oil tank and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221086692.2U CN217602806U (en) | 2022-05-09 | 2022-05-09 | Engine oil tank and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602806U true CN217602806U (en) | 2022-10-18 |
Family
ID=83567055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221086692.2U Active CN217602806U (en) | 2022-05-09 | 2022-05-09 | Engine oil tank and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602806U (en) |
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2022
- 2022-05-09 CN CN202221086692.2U patent/CN217602806U/en active Active
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