Fuel supply system of generator

Abstract

The utility model discloses a fuel supply system of a generator, which is arranged on an engine of the generator, is positioned in the generator and comprises an oil-gas change-over switch, an oil pipe and a gas pipe, and the oil pipe and the gas pipe are connected with the engine through the oil-gas change-over switch; wherein the oil pipe is connected with an external oil pump, the gas pipe is connected with an external gas pipe, and the external oil pump and the external gas pipe are arranged outside a shell of the generator. According to the utility model, the arrangement of an oil tank or gas storage equipment on the generator is omitted, the weight of the generator can be reduced, the size of the generator can be reduced, the miniaturization of the generator is realized, the application range of the generator can be expanded, and the applicability is strong.

Description

Technical Field

[0001] The utility model relates to a fuel supply system, in particular to a fuel supply system for a motorhome generator. Background Art

[0002] RVs, as a type of mobile vehicle with residential functions, are a new type of vehicle that has emerged in recent years. In order to ensure the power source of electrical equipment on RVs, many RVs now use generators to increase their power demand. At present, the fuel used by the generator engine is mainly gasoline, which is portable but increases the weight of the generator. In addition, with increasingly stringent environmental emission regulations, more and more engines use gas.

[0003] Chinese patent document CN214464569U discloses a three-fuel generator set, which relates to the field of power supply technology, including a gas pipe, a fuel pipe, a fuel tank, a natural gas storage unit, a liquefied petroleum gas storage unit and a control module, as well as a gas and fuel switching device, a pressure reducing valve and a multi-fuel mixer electrically connected to the control module respectively; wherein, the multi-fuel mixer is provided with a solenoid valve 1, a first air inlet, an oil inlet and a fuel outlet, and a solenoid valve 2 is used to control the on-off of the oil supply system; the pressure reducing valve is provided with a solenoid valve 2, a second air inlet and an air outlet, and the solenoid valve 2 is used to control the on-off of the air supply system; the control module is used to control the on-off of the solenoid valve 1 and the solenoid valve 2, so as to realize the flexible selection of fuel supply, natural gas supply or liquefied petroleum gas supply by the generator set. In the prior art, although it can realize the flexible selection of different fuels or fuel supply, it also requires the generator set to carry multiple fuels or fuels for use, thereby increasing the weight of the generator set and also increasing the volume of the generator set. Utility Model Content

[0004] In order to solve the technical problem in the prior art that the generator set needs to carry multiple fuels, resulting in increased volume and weight, the utility model provides a generator fuel supply system, which is configured on the engine of the generator and located inside the generator, and includes an oil-gas conversion switch, an oil pipe and a gas pipe, and the oil pipe and the gas pipe are connected to the engine through the oil-gas conversion switch; wherein: the oil pipe is connected to an external oil pump, the gas pipe is connected to an external gas pipe, and the external oil pump and the external gas pipe are arranged outside the shell of the generator.

[0005] Compared with the prior art, in this solution, by setting an external oil pump and an external gas pipe, fuel or gas can be introduced from the RV's own oil tank or gas storage device for use in the generator, eliminating the need for the oil tank or gas storage device on the generator, which can reduce the weight of the generator, and can also reduce the size of the generator, thereby realizing the miniaturization of the generator; moreover, since the trailer RV itself has no power output, that is, it does not have its own oil tank, a dual-fuel supply method is configured in this solution. Therefore, even if the RV itself does not have a oil tank, gas can be introduced from the gas storage device for use in the generator, thereby increasing the use range of the generator and having strong applicability.

[0006] Preferably, the external oil pump and the external air pipe are arranged on the same side of the housing. This solution facilitates the access of an external oil tank or air storage device, and can also standardize the arrangement of the external oil pump and the external air pipe on the housing.

[0007] Preferably, the external oil pump and the external air pipe are centrally arranged on the same side of the housing. This solution facilitates the access of an external oil tank or air storage device, and can also standardize the arrangement of the external oil pump and the external air pipe on the housing.

[0008] Preferably, the gas pipe and the oil pipe are arranged in parallel on the shell. This solution standardizes the arrangement of the gas pipe and the oil tank and optimizes the internal structure of the generator.

[0009] Preferably, the housing is provided with a concave mounting position, and the external oil pump is located in the mounting position. This solution facilitates the installation of the external oil pump and can also make the installation of the housing more regular.

[0010] Preferably, the mounting position is located at the top corner of the housing. This solution can make the housing arrangement more regular.

[0011] Preferably, a pressure reducing valve and a solenoid valve are connected to the gas pipe. This solution can ensure the normal transportation and safe use of gas.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model eliminates the need for an oil tank or gas storage device on the generator, which can reduce the weight of the generator, and also reduce the size of the generator, thus realizing the miniaturization of the generator;

[0014] 2. The utility model can improve the use range of the generator and has strong applicability;

[0015] 3. The utility model can make the generator structure regular and ensure the safe use of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the local structure of a generator in an embodiment of a generator fuel supply system. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] 1. Definition

[0019] Oil-gas conversion switch: a mechanism that can realize the switching between oil and gas fuel.

[0020] Pressure reducing valve: A valve that reduces the inlet pressure to a required outlet pressure through adjustment and automatically maintains a stable outlet pressure by relying on the energy of the medium itself.

[0021] Solenoid valve: basic automation component for controlling fluids

[0022] 2. The reference numerals in the drawings of the specification include: housing 1, external oil pump 2, external gas pipe 3, oil pipe 4, gas pipe 5, and installation position 6.

[0023] The embodiment is basically as shown in the attached Figure 1 As shown: a generator fuel supply system is configured on the engine of the generator and located inside the generator, including an oil-gas conversion switch, an oil pipe 4 and a gas pipe 5. The oil pipe 4 and the gas pipe 5 are connected to the engine through the oil-gas conversion switch. The oil-gas conversion switch is a mechanism that can realize the switching between oil and gas. It is currently commonly used in multi-fuel generators. For example, Chinese patent documents CN207647642U, CN213510929U, etc. disclose structures that can switch between different fuels.

[0024] The oil pipe 4 is connected to the external oil pump 2, and the gas pipe 5 is connected to the external gas pipe 3. The external oil pump 2 and the external gas pipe 3 are arranged outside the housing 1 of the generator and are concentrated at the top corner on the same side of the housing 1. An inwardly concave mounting position 6 is provided at the top corner, and the external oil pump 2 is located in the mounting position 6. In this embodiment, the mounting position 6 is located at the top corner in front of the left side of the housing 1. In other embodiments, the mounting position 6 can also be set at other top corners. After the mounting position 6 is set at the top corner in front of the housing 1, it is convenient for the operator to use the external oil pump 2 and the external gas pipe 3 even after the generator is installed on the RV.

[0025] The gas pipe 5 is also connected with a pressure reducing valve and a solenoid valve for adjusting the gas pressure of the gas transported in the gas pipe 5 to ensure that the output pressure of the gas is stable, safe and normal, thereby ensuring the normal use of the generator.

[0026] The specific implementation process is as follows: The generator fuel supply system in this embodiment is configured for use on a generator, and the generator is used to power the power supply equipment on the RV. Before use, the fuel tank on the RV is connected through the external oil pump 2, and the gas storage device of the RV is connected through the external gas pipe 3. When in use, the supply of the oil tank or gas is switched through the oil and gas switching switch. When using gas supply, the gas is output from the gas storage device and enters the external gas pipe 3, and then is supplied to the generator through the gas pipe 5; when using fuel supply, the gas is output from the oil tank and enters the external oil pump 2, and then is supplied to the generator through the oil pipe 4. During use, the gas pressure in the gas pipe 5 can be adjusted by setting the pressure reducing valve and the solenoid valve.

[0027] Note: In the present invention, fuel is taken as gas and fuel oil as examples, but in actual use, the fuel includes but is not limited to the gas and fuel oil given as examples in this embodiment, and may also be other fuels that can be used for generators.

[0028] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A generator fuel supply system, configured on the engine of the generator and located inside the generator, comprising an oil-gas conversion switch, an oil pipe and a gas pipe, wherein the oil pipe and the gas pipe are connected to the engine through the oil-gas conversion switch; characterized in that: The oil pipe is connected to an external oil pump, the gas pipe is connected to an external gas pipe, and the external oil pump and the external gas pipe are arranged outside the housing of the generator.

2. The generator fuel supply system according to claim 1, characterized in that: The external oil pump and the external air pipe are arranged on the same side of the housing.

3. The generator fuel supply system according to claim 2, characterized in that: The external oil pump and the external air pipe are centrally arranged on the same side of the housing.

4. The generator fuel supply system according to claim 3, characterized in that: The gas pipe and the oil pipe are arranged in parallel on the shell.

5. The generator fuel supply system according to any one of claims 1 to 4, characterized in that: The housing is provided with a concave installation position, and the external oil pump is located in the installation position.

6. The generator fuel supply system according to claim 5, characterized in that: The installation position is located at the top corner of the shell.

7. The generator fuel supply system according to claim 6, characterized in that: The gas pipe is connected with a pressure reducing valve and a solenoid valve.

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