CN219317060U

CN219317060U - Non-road type fuel engine

Info

Publication number: CN219317060U
Application number: CN202320254499.3U
Authority: CN
Inventors: 袁彬; 王义超; 陈旭东; 张易; 罗百万
Original assignee: Chongqing Zongshen General Power Machine Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-07-07
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a non-road type fuel engine, which comprises an oil tank and a carburetor, wherein the oil tank is connected with the carburetor through an oil pipe, an oil cup is arranged in the carburetor, and the oil cup is provided with a balance hole, wherein the oil cup comprises a cylinder body, a cylinder cover and a cylinder cover, wherein the cylinder body is arranged in the cylinder body, the cylinder body is provided with a cylinder cover, the cylinder cover is arranged in the cylinder cover, the cylinder cover is provided with a cylinder: the balance hole is communicated with a balance pipe, an outlet of the balance pipe is communicated with the outside, and when the oil tank is toppled towards any direction, the liquid level of fuel in the balance pipe is lower than the current highest position of the balance pipe. The utility model can avoid the condition that the fuel oil leaks when the fuel tank is toppled over.

Description

Non-road type fuel engine

Technical Field

The utility model relates to an engine, in particular to a non-road type fuel engine.

Background

An engine is a machine capable of converting other forms of energy into mechanical energy, including, for example, internal combustion engines (reciprocating piston engines), external combustion engines (stirling engines, steam engines, etc.), jet engines, electric motors, and the like. Non-road engines, commonly known as general small gasoline engines, are widely used in gardening machinery, water pumps, small generators, insecticidal sprayers, chain saws and other devices. In the use, when equipment topples over, oil leakage can be found to occur, and the waste of fuel is caused. After the engine oil leakage is checked, one of the reasons for finding the oil leakage is that after the engine is dumped, the liquid level in the carburetor is increased and flows out through the balance hole, so that the oil leakage is caused.

Chinese patent document CN210564811U discloses a carburetor with improved balance hole, comprising a carburetor body, a float chamber, a throat and a balance hole, characterized in that: the end part of the balance hole is arranged outside the carburetor body, the port of the balance hole passes through the position of the throat pipe, and a bending blocking part is arranged in the balance hole. Through increasing the height of balance hole and setting up the blocking portion that buckles in the balance hole for the fuel in the float chamber can not spill over in violent vibration, eliminates the potential safety hazard, has improved the security of driving.

This prior art has the following disadvantages: although the fuel is prevented from overflowing in severe vibration by increasing the height of the balance hole and arranging the bending part in the prior art, the fuel can submerge the balance hole for the engine after toppling, and the situation of oil leakage still exists.

Disclosure of Invention

The utility model provides a non-road fuel engine, which solves the problem of fuel leakage when the engine is toppled in the prior art, and comprises a fuel tank and a carburetor, wherein the fuel tank is connected with the carburetor through a fuel pipe, a fuel cup is arranged in the carburetor, and the fuel cup is provided with a balance hole, wherein: the balance hole is communicated with a balance pipe, an outlet of the balance pipe is communicated with the outside, and when the oil tank is toppled towards any direction, the liquid level of fuel in the balance pipe is lower than the current highest position of the balance pipe.

Compared with the prior art, in the scheme, when the fuel tank is toppled, when the fuel in the carburetor floods the balance hole, the fuel flows into the balance pipe, and the outlet of the balance pipe is communicated with the outside, so that after the fuel enters the balance pipe through the balance hole, the fuel liquid level in the balance pipe is leveled with the liquid level in the fuel tank, but the fuel liquid level in the balance pipe is always lower than the highest position of the balance pipe, so that the fuel in the balance pipe cannot flow out of the balance pipe after passing through the highest position, and the leakage of the fuel can be avoided.

Preferably, the balance pipe is wound on the upper cover of the oil tank and extends to a position beyond the bottom cover in the height direction of the oil tank towards the bottom cover of the oil tank after being arranged through four vertex angles of the upper cover of the oil tank. In this scheme, four apex angles that set up can guarantee that the oil tank all has a highest department after all directions are emptyd to can guarantee no matter the oil tank all can prevent the problem that the fuel leaked after empting towards arbitrary direction, simple structure.

Preferably, the balancing pipe is arranged along the outer contour of the upper cover. In this scheme, the mode of setting along upper cover outline can lengthen the length of balanced pipe on the one hand, and on the other hand still makes things convenient for the setting of balanced pipe, simple structure.

Preferably, the balance pipe is wound around the upper cover from one side edge of the upper cover of the fuel tank, and extends toward the bottom cover from the same side edge of the upper cover after winding around the upper cover one revolution. The length of balance pipe has further been prolonged to the setting mode of the upper cover a week of balance pipe in this scheme, also makes things convenient for the setting of balance pipe on the oil tank simultaneously.

Preferably, the upper cover of the oil tank is provided with an outer edge portion, and the balance pipe is arranged on the outer edge portion. The setting of outer portion in this scheme makes things convenient for the setting of balance pipe on the oil tank, simple structure.

The utility model has the following beneficial effects:

1. the balance pipe is arranged, so that the fuel oil tank can not leak fuel oil after being poured towards any direction, the waste of the fuel oil can be avoided, and the use cost of the engine is reduced.

2. The carburetor in the prior art is not required to be modified in a mode of externally arranging the balance pipe, so that the manufacturing cost of the engine is reduced.

Drawings

FIG. 1 is a schematic illustration of an off-road fuel engine according to an embodiment of the present utility model with a forward toppling of the tank;

FIG. 2 is a schematic illustration of the fluid level in FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a schematic view of the liquid level in FIG. 3;

FIG. 5 is a schematic illustration of the tank being poured rearward;

FIG. 6 is a right side view of FIG. 5;

FIG. 7 is a schematic view of the tank when it is tipped to the left;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a schematic view of the tank when it is tipped to the right;

fig. 10 is a right side view of fig. 9.

Detailed Description

The following is a further detailed description of the embodiments:

1. definition of the definition

Balance tube: and the oil pipe is connected with the balance hole.

2. Reference numerals in the drawings of the specification include: the fuel tank 1, the outer edge part 10, the balance pipe 2, the carburetor 3, the oil pipe 4 and the liquid level 5.

An example is substantially as shown in figures 1 to 10 of the accompanying drawings: the non-road fuel engine comprises a fuel tank 1 and a carburetor 3, wherein the fuel tank 1 is connected with the carburetor 3 through a fuel pipe 4, the carburetor 3 is provided with a fuel cup, and a balance hole is arranged on the fuel cup.

The balance hole is communicated with a balance pipe 2, the outlet of the balance pipe 2 is communicated with the outside, and when the oil tank 1 is toppled towards any direction, the fuel liquid level 5 in the balance pipe 2 is lower than the current highest position of the balance pipe 2. Specifically, the upper cover is provided with an outer edge portion 10, the balance pipe 2 is arranged on the outer edge portion 10, the balance pipe 2 is wound on the upper cover outer edge portion 10 from the middle of the upper cover edge of the oil tank 1 and extends to a position exceeding the bottom cover along the height direction of the oil tank 1 towards the bottom cover of the oil tank 1 after being arranged through four vertex angles of the upper cover of the oil tank 1, the balance pipe 2 is wound on the upper cover from one side edge of the upper cover of the oil tank 1, and extends towards the bottom cover from the edge of the same side of the upper cover after winding on the upper cover for a circle.

The specific implementation process is as follows: as shown in fig. 1-4, taking the case that the fuel tank 1 is toppled forward as an example, fuel enters the carburetor 3 through the fuel pipe 4, then enters the balance pipe 2 through the balance hole of the carburetor 3, continues to flow in the balance pipe 2, and then when reaching the corner of the upper right corner of the balance pipe 2, the fuel level 5 cannot continuously rise under the action of external pressure, so that the fuel stops below the corner of the upper right corner of the balance pipe 2, and leakage of fuel is avoided.

The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present utility model, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a non-road formula fuel engine, includes oil tank and carburetor, the oil tank pass through oil pipe with the carburetor is connected, be equipped with the oil cup in the carburetor, the oil cup is equipped with balanced hole, its characterized in that: the balance hole is communicated with a balance pipe, an outlet of the balance pipe is communicated with the outside, and when the oil tank is toppled towards any direction, the liquid level of fuel in the balance pipe is lower than the current highest position of the balance pipe; the balance pipe is wound to the upper cover of the oil tank, is arranged through four vertex angles of the upper cover of the oil tank, and extends to a position exceeding the bottom cover along the height direction of the oil tank towards the bottom cover of the oil tank.

2. The off-road fuel engine of claim 1, wherein: the balance pipe is arranged along the outer contour of the upper cover.

3. The off-road fuel engine of claim 2, wherein: the balance pipe is wound on the upper cover from one side edge of the upper cover of the oil tank, and extends towards the bottom cover from the same side edge of the upper cover after winding the upper cover for one circle.

4. A non-road type fuel engine according to any one of claims 1-3, characterized in that: the upper cover of oil tank is provided with outer portion along, the balance pipe is located outer portion along sets up.