An oil-fired generator

Abstract

The utility model discloses a kind of oil-fired generators, including shell, the inside of the shell is provided with engine unit;Still including first fuel pump and second fuel pump, the first fuel pump and second fuel pump are connected in series, the second fuel pump is connected with engine unit, the first fuel pump and second fuel pump are all arranged in shell interior, and the first fuel pump and second fuel pump are all located the air intake side of engine unit.This scheme solves the problem that the arrangement of fuel pump in the prior art can seriously affect the airflow inside the shell.

Description

Technical Field

[0001] This utility model relates to fuel generators. Background Technology

[0002] A fuel-fired generator is a power generation device that uses an engine unit that burns fuel oil to drive a generator unit and produce electricity. Fuel-fired generators require a fuel pump to supply fuel to the engine unit.

[0003] Chinese patent document CN222526400U discloses a fuel generator, including a housing, a power unit and a cooling fan inside the housing, a fuel pump connected to the power unit via a fuel pipe, and a fuel supply device connected to the other end of the fuel pump; a mounting part is provided on the outside of the housing, the fuel pump is located in the mounting part, and one end of the fuel pipe extends out of the housing and connects to the fuel pump; the mounting part is a mounting groove recessed at the bottom of the housing; a bracket is provided on the mounting part, and the fuel pump is fixed on the bracket. The beneficial effect of this prior art is that it isolates the fuel pump from the inside of the generator, thereby effectively isolating the heat generated by the power unit during use from the thermal impact on the fuel pump, and extending the service life of the fuel pump.

[0004] The aforementioned prior art extends the service life of the fuel pump by placing it outside the housing. However, in some cases, because the fuel tank supplying fuel to the fuel generator is installed much lower than the fuel generator itself, the fuel generator may have two fuel pumps connected in series. One fuel pump draws fuel from the fuel tank, and the other supplies fuel at a certain pressure to the engine unit. If both fuel pumps are placed on the outside of the housing, a large cavity will be formed on the outside of the housing, resulting in a severely irregular internal space and adversely affecting airflow within the housing. Utility Model Content

[0005] The purpose of this invention is to provide a fuel generator that solves the problem that the arrangement of the fuel pump in the prior art can easily and seriously affect the airflow inside the housing.

[0006] To achieve the above objectives, the basic solution of this utility model provides a fuel generator, including a housing, in which an engine unit is disposed; it also includes a first fuel pump and a second fuel pump, the first fuel pump and the second fuel pump being connected in series, the second fuel pump being connected to the engine unit, the first fuel pump and the second fuel pump being disposed inside the housing, and both the first fuel pump and the second fuel pump being located on the air intake side of the engine unit.

[0007] The beneficial effects of this basic scheme are as follows: both the first fuel pump and the second fuel pump are located inside the housing and on the intake side of the engine unit, thereby avoiding the formation of a large cavity on the outside of the housing, thus reducing the adverse effects of the arrangement of the two fuel pumps on the airflow inside the housing; at the same time, the airflow generated on the intake side of the engine unit will cool down the two fuel pumps, reducing the phenomenon of fuel pump failure due to overheating, which is conducive to improving the operational reliability of the generator.

[0008] Preferably, the first fuel pump and the second fuel pump are arranged vertically. This arrangement makes full use of the vertical space by arranging the two fuel pumps, which helps to reduce the occupation of the lateral space, thereby reducing the impact on the airflow inside the housing, which is beneficial for heat dissipation inside the generator, and also helps to improve the structural compactness of the generator.

[0009] Preferably, the second fuel pump is located above the first fuel pump. This arrangement allows the fuel-drawing pipe connected to the first fuel pump to be positioned below it, while the fuel-connecting pipe to the engine unit on the second fuel pump is positioned above it. This ensures that the first fuel pump draws fuel and supplies it upwards to the second fuel pump, which then supplies it to the engine unit from the top. This makes the entire fuel supply route smoother, reduces the possibility of intersecting pipes, facilitates assembly operations, and minimizes the risk of pipe damage.

[0010] Preferably, a filter is connected between the first fuel pump and the second fuel pump. This arrangement filters the fuel, reducing the amount of impurities in the fuel entering the second fuel pump and affecting fuel supply to the engine unit, thereby improving the reliability of the second fuel pump.

[0011] Preferably, the housing is provided with a ventilation hole facing the first fuel pump. This arrangement allows outside air to be introduced into the housing through the ventilation hole, cooling the area where the first fuel pump is located, thereby improving the heat dissipation effect of both the first and second fuel pumps and enhancing their operational reliability.

[0012] Preferably, the ventilation holes include a first ventilation hole and a second ventilation hole, with the first ventilation hole located on the side of the housing and the second ventilation hole located at the bottom of the housing. This arrangement allows the first ventilation hole to introduce air from outside the housing laterally into the housing, and the second ventilation hole to introduce air from outside the housing vertically into the housing, thereby achieving multi-directional heat dissipation in the area where the fuel pump is located. This further improves the cooling effect in the fuel pump area, thus enhancing the operational reliability of both the first and second fuel pumps. Furthermore, the fuel-drawing pipe of the first fuel pump can directly pass through the second ventilation hole, simplifying the structure and improving assembly convenience.

[0013] This utility model has the following beneficial effects: Compared with existing technologies, this solution reduces the adverse effects of the arrangement of two fuel pumps on the airflow inside the housing and reduces the occurrence of fuel pump failures due to overheating, thus improving the operational reliability of the generator. Furthermore, the fuel pump piping arrangement is simpler and smoother, reducing the risk of pipe damage and further enhancing the generator's operational reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the removal of part of the housing in an embodiment of the present invention for a fuel generator; Figure 2 for Figure 1 A schematic diagram of the middle shell in its complete state. Detailed Implementation

[0015] The following detailed description illustrates the specific implementation methods: The reference numerals in the accompanying drawings include: engine unit 1, second fuel pump 2, filter 3, first fuel pump 4, housing 5, first vent 6, and second vent 7.

[0016] The basic implementation examples are as follows: Figure 1 and Figure 2 As shown: A fuel generator includes a housing 5, and an engine unit 1 is disposed inside the housing 5. The generator also includes a first fuel pump 4 and a second fuel pump 2, which are connected in series, and the second fuel pump 2 is connected to the engine unit 1. In this embodiment, the first fuel pump 4 is used to draw fuel from the fuel tank to ensure fuel supply; the second fuel pump 2 is used to pressurize the fuel injected into the engine unit 1 to ensure injection pressure.

[0017] The first fuel pump 4 and the second fuel pump 2 are both located inside the housing 5, and both are located on the intake side of the engine unit 1. This arrangement of the first fuel pump 4 and the second fuel pump 2 within the housing 5 facilitates the arrangement of pipelines and reduces the length of the pipelines, thereby reducing the risk of pipeline damage. At the same time, the intake side of the engine unit 1 generates a continuous airflow to cool the two fuel pumps, reducing the possibility of the two fuel pumps malfunctioning due to overheating.

[0018] In this embodiment, the first fuel pump 4 and the second fuel pump 2 are arranged vertically. A further preferred arrangement is that the second fuel pump 2 is located above the first fuel pump 4, thereby improving the compactness of the arrangement and reducing space occupation. The first fuel pump 4 is a vertically arranged cylindrical shape. A filter 3 connects the first fuel pump 4 and the second fuel pump 2, filtering the fuel before it enters the second fuel pump 2, reducing the possibility of clogging. In this embodiment, the first fuel pump 4, the second fuel pump 2, and the filter 3 are connected and fixed to the housing 5 by a bracket.

[0019] The housing 5 is provided with ventilation holes facing the first fuel pump 4. In this embodiment, the ventilation holes include a first ventilation hole 6 and a second ventilation hole 7. The first ventilation hole 6 is located on the side of the housing 5, and the second ventilation hole 7 is located at the bottom of the housing 5. By using the first ventilation hole 6 and the second ventilation hole 7, air from outside the housing 5 in different directions is introduced into the area where the fuel pump is located, thereby cooling the fuel pump and preventing it from overheating and being damaged.

[0020] By adopting this scheme, the first fuel pump 4 and the second fuel pump 2 are both located inside the housing 5 and on the intake side of the engine unit 1, thereby avoiding the formation of a large cavity on the outside of the housing 5 and reducing the adverse effects of the arrangement of the two fuel pumps on the airflow inside the housing 5. At the same time, the airflow generated on the intake side of the engine unit 1 will cool down the two fuel pumps, reducing the phenomenon of fuel pump failure due to overheating and improving the operational reliability of the generator.

[0021] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A fuel generator, comprising a housing, wherein an engine unit is disposed inside the housing; further comprising a first fuel pump and a second fuel pump, the first fuel pump and the second fuel pump being connected in series, and the second fuel pump being connected to the engine unit, characterized in that: Both the first fuel pump and the second fuel pump are located inside the housing, and both are located on the intake side of the engine unit.

2. A fuel-fired generator according to claim 1, characterized in that: The first fuel pump and the second fuel pump are arranged vertically.

3. A fuel-fired generator according to claim 2, characterized in that: The second fuel pump is located above the first fuel pump.

4. A fuel-powered generator according to claim 3, characterized in that: A filter is connected between the first fuel pump and the second fuel pump.

5. A fuel-fired generator according to any one of claims 2-4, characterized in that: The housing is provided with a ventilation hole facing the first fuel pump.

6. A fuel-fired generator according to claim 5, characterized in that: The ventilation holes include a first ventilation hole and a second ventilation hole, with the first ventilation hole located on the side of the housing and the second ventilation hole located at the bottom of the housing.

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