Pressure-adjustable brushless fuel pump assembly

Abstract

The utility model provides a brushless fuel pump assembly with adjustable pressure, which is characterized by comprising a brushless fuel pump, a filter, a digital signal oil pressure sensor, an upper cover and an inner support, the brushless fuel pump and the filter are arranged on the inner support, an injection pipeline mechanism for communicating the brushless fuel pump and the filter is arranged on the inner support, and the digital signal oil pressure sensor is arranged on the upper cover. The inner support is provided with a main oil pipeline connected with an outlet of the filter, the main oil pipeline is connected with an oil conveying corrugated pipe and the upper cover, and the digital signal oil pressure sensor is connected to the main oil pipeline and connected with the upper cover through a wire harness. Pressure is measured and calculated through a digital signal oil pressure sensor, a voltage signal is fed back to a vehicle-mounted power supply control module through a wire harness, and then the pressure in a pipeline is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of brushless fuel pump assembly of adjustable pressure. BACKGROUND

[0002] Fuel pump function is to suck fuel from fuel tank, pressurize and deliver to fuel supply pipe, and cooperate with fuel pressure regulator to establish certain fuel pressure.

[0003] Through fuel pump, fuel is sucked from oil inlet, and fuel is pressed into fuel system from oil outlet, when fuel pump is closed, one-way valve of oil outlet is closed, to prevent fuel from flowing back to fuel tank through fuel pump, and fuel pipe pressure maintained by one-way valve is called "residual pressure".

[0004] In prior art, the above two pressures cannot be effectively regulated and controlled, and there is a risk of fuel pipeline failure. INVENTION CONTENTS

[0005] The utility model aims at the above problems existing in prior art, and provides a kind of brushless fuel pump assembly of adjustable pressure, pressure is measured by digital signal oil pressure sensor, voltage signal is fed back to vehicle-mounted power supply control module through wire harness, and then the pressure in pipeline is adjusted.

[0006] The utility model can be realized by the following technical scheme: a kind of brushless fuel pump assembly of adjustable pressure, characterized by including brushless fuel pump, filter, digital signal oil pressure sensor, upper cover and inner support, the brushless fuel pump is installed on the inner support with filter, the inner support is equipped with the injection pipeline mechanism that is communicated with the brushless fuel pump, filter, the inner support is equipped with the main oil pipeline that is connected with the outlet of filter, and the main oil pipeline is connected with the upper cover with oil delivery bellows, the digital signal oil pressure sensor is connected on the main oil pipeline and is connected with the upper cover by wire harness.

[0007] Further, the brushless fuel pump is connected with filter below.

[0008] Further, the upper cover has oil outlet nozzle, and the lower end of oil outlet nozzle is connected with oil delivery bellows.

[0009] Further, the injection pipeline mechanism includes connecting channel communicated with the brushless fuel pump and filter, upper injection head, lower injection assembly and tee joint, the tee joint is connected on connecting channel, the upper injection head is installed in one port of tee joint, the other port of tee joint is negative pressure oil inlet, and the lower injection assembly is installed below connecting channel.

[0010] Further, the connecting channel has downwardly arranged lower injection pipe below, the lower injection assembly is siphon joint, and the siphon joint is installed on lower injection pipe.

[0011] Furthermore, the upper cover has an output terminal for wiring harness connection, and the brushless fuel pump is also connected to the output terminal via a wiring harness.

[0012] Furthermore, the inner support has a mounting structure for mounting a digital signal oil pressure sensor and connecting it to the filter outlet end, and the main oil pipeline is mounted on the mounting structure and connected to the filter outlet.

[0013] Compared with the prior art, the advantages of this application are: the pressure is calculated by a digital signal oil pressure sensor, the voltage signal is fed back to the vehicle power control module through the wiring harness, and then the pressure in the pipeline is adjusted. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0016] Figure 3 This is a schematic diagram of the assembly with the top cover removed;

[0017] Figure 4 This is a schematic diagram of the internal support structure;

[0018] Figure 5 yes Figure 4 Sectional view at point AA;

[0019] In the diagram, 1. Top cover; 11. Output end; 12. Fuel outlet; 2. Fuel bellows; 3. Filter; 31. Main fuel line; 4. Brushless fuel pump; 41. Filter screen; 5. Siphon connector; 61. Lower injector; 62. Connecting channel; 63. T-connector; 64. Negative pressure fuel inlet; 65. Upper injector head; 66. Mounting structure; 7. Digital signal oil pressure sensor; 71. Wiring harness. Detailed Implementation

[0020] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0021] like Figures 1-5 As shown, an adjustable pressure brushless fuel pump assembly is characterized by comprising a brushless fuel pump 4, a filter 3, a digital signal oil pressure sensor 7, an upper cover 1, and an inner bracket 6. The brushless fuel pump 4 and the filter 3 are mounted on the inner bracket 6. The inner bracket 6 is provided with an ejector pipe mechanism that connects the brushless fuel pump 4 and the filter 3. The inner bracket 6 is provided with a main oil pipe 31 that is connected to the outlet of the filter 3, and an oil supply bellows 2 is connected to the upper cover 1 on the main oil pipe 31. The digital signal oil pressure sensor 7 is connected to the main oil pipe 31 and is connected to the upper cover 1 through a wiring harness 71.

[0022] Further, the brushless fuel pump 4 is connected with a filter screen 41 below.

[0023] Further, the upper cover 1 is provided with an oil outlet nozzle 12, and the lower end of the oil outlet nozzle 12 is connected with the oil conveying corrugated pipe 2.

[0024] Further, the ejector pipe mechanism comprises a connecting channel 62 connecting the brushless fuel pump 4 with the filter 3, an upper ejector head 65, a lower ejector assembly, and a three-way joint 63, the three-way joint 63 is connected on the connecting channel 62, the upper ejector head 65 is installed on one port of the three-way joint 63, the other port of the three-way joint 63 is a negative pressure oil inlet end 64, and the lower ejector assembly is installed below the connecting channel 62.

[0025] Further, the connecting channel 62 is provided with a downwardly arranged lower ejector pipe 61 below, the lower ejector assembly is a siphon joint 5, and the siphon joint 5 is installed on the lower ejector pipe 61. The lower ejector pipe 61 sprays downwardly to connect the siphon joint 5, one end of the three-way joint 63 discharges oil, and the negative pressure oil inlet end 64 forms negative pressure to perform oil inlet action.

[0026] Further, the upper cover 1 is provided with an output end 11 for connecting a wire harness 71, and the brushless fuel pump 4 is also connected with the output end 11 through the wire harness 71.

[0027] Further, the inner support 6 is provided with a mounting structure 66 for mounting a digital signal oil pressure sensor 7 and connected with an outlet end of the filter 3, and the main oil pipe 31 is installed on the mounting structure 66 and communicated with the outlet of the filter 3.

[0028] In the present application, the connecting channel 62 is arranged at the oil inlet of the filter 3 to communicate the filter 3 with the brushless fuel pump 4, the downwardly arranged lower ejector pipe 61 is arranged to connect the siphon joint 5 to make the oil tank full of oil, one end of the three-way joint 63 ejects oil, the other end of the three-way joint 63 is connected with the connecting channel 62 to inlet oil, and the other end is the negative pressure oil inlet end 64 to siphon the fuel on the side of the auxiliary oil tank, and finally the oil is transmitted upwardly from the oil outlet of the filter 3 to the oil outlet nozzle 12 on the upper cover 1 to be sprayed out, the digital signal oil pressure sensor 7 is installed on the mounting structure 66 at the oil outlet of the filter 3 to measure pressure, and the voltage signal is fed back to the vehicle-mounted power supply control module through the wire harness 71 to regulate the oil pressure in the pipeline of the brushless fuel pump 4.

[0029] The technical scheme of the present application provides a solution significantly different from the prior art, and the parts not involved in the technical scheme of the present application are the same as or can be realized by the prior art, which will not be repeated.

[0030] The technical solutions in the above embodiments have clearly and completely described the content of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

Claims

1. A pressure adjustable brushless fuel pump assembly, characterized by, The brushless fuel pump, the filter, the digital signal oil pressure sensor, the upper cover and the inner support are included, the brushless fuel pump and the filter are installed on the inner support, the inner support is provided with an injection pipeline mechanism for connecting the brushless fuel pump and the filter, the inner support is provided with a main oil pipeline connected with the outlet of the filter, the main oil pipeline is connected with the oil conveying corrugated pipe and the upper cover, and the digital signal oil pressure sensor is connected on the main oil pipeline and connected with the upper cover through a wire harness.

2. A pressure adjustable brushless fuel pump assembly as claimed in claim 1, wherein: The brushless fuel pump is connected with a filter screen below.

3. A pressure adjustable brushless fuel pump assembly as defined in claim 1, wherein: The upper cover is provided with an oil outlet nozzle, and the lower end of the oil outlet nozzle is connected with the oil conveying corrugated pipe.

4. A pressure adjustable brushless fuel pump assembly as defined in claim 1, wherein: The injection pipeline mechanism includes a connecting channel for connecting the brushless fuel pump and the filter, an upper injection head, a lower injection assembly and a three-way joint, the three-way joint is connected on the connecting channel, the upper injection head is installed on one port of the three-way joint, the other port of the three-way joint is a negative pressure oil inlet, and the lower injection assembly is installed below the connecting channel.

5. A pressure adjustable brushless fuel pump assembly as claimed in claim 4, wherein, The connecting channel is provided with a downwardly arranged lower injection pipe below, the lower injection assembly is a siphon joint, and the siphon joint is installed on the lower injection pipe.

6. A pressure adjustable brushless fuel pump assembly as defined in claim 1 wherein, The upper cover is provided with an output end for connecting the wire harness, and the brushless fuel pump is also connected with the output end through the wire harness.

7. A pressure adjustable brushless fuel pump assembly as in claim 1, wherein, The inner support is provided with a mounting structure for mounting the digital signal oil pressure sensor and connecting with the outlet of the filter, and the main oil pipeline is mounted on the mounting structure and connected with the outlet of the filter.

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