Highly integrated brushless pump assembly

Abstract

A highly-integrated brushless pump assembly belongs to the field of fuel pumps and comprises a first oil storage barrel, a coarse filter, a pump core and a fine filter, and the oil storage barrel is communicated to the pump core through the coarse filter; a first output port of the pump core is communicated to a fine filter through a one-way valve; a first output port of the fine filter is communicated to an engine, and a second output port of the fine filter is communicated to a pressure regulating valve; a second output port of the pump core is communicated with an input port of a far-end siphon valve, and the siphon valve is communicated with the inside and the outside of the second oil storage barrel. And the device has the effects of high universality, high integration level, small occupied space and better filtering effect.

Description

Technical Field

[0001] The present invention relates to the field of fuel pumps, and in particular to a highly integrated brushless pump assembly. Background Art

[0002] Conventional fuels currently use brushed pump assemblies, while harsh fuels and methanol gasoline use brushless pump assemblies. Currently, there is no effective fuel filtration method for brushless pump assemblies, resulting in problems such as excessive number of components, large space requirements, and poor filtration performance. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a highly integrated brushless pump assembly, which has strong versatility, high integration, small space occupation and better filtering effect.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a highly integrated brushless pump assembly, including a first oil storage tank, a coarse filter, a pump core and a fine filter, wherein the oil storage tank is connected to the pump core through the coarse filter; The first output port of the pump core is connected to the fine filter via a one-way valve; The first output port of the fine filter is connected to the engine, and the second output port of the fine filter is connected to the pressure regulating valve; The second output port of the pump core is connected to the input port of the remote siphon valve, and the siphon valve is connected to the inside and outside of the second oil storage barrel.

[0005] Preferably, the pump core is arranged in the first oil storage barrel, the oil inlet of the pump core is located at the lower end, and the oil inlet of the pump core is connected to the coarse filter.

[0006] Preferably, an oil outlet cavity is provided at the upper end of the pump core, and the oil outlet cavity is used to connect the fine filter and the distal siphon valve.

[0007] Preferably, the fine filter is provided on the periphery of the oil outlet cavity, the first output port of the pump core is provided on the periphery of the oil outlet cavity, and the fine filter is communicated with the first output port of the pump core.

[0008] Preferably, the top of the oil outlet cavity is provided with a second output port of the pump core.

[0009] Preferably, the oil storage barrel is provided with a closed oil level gauge.

[0010] Beneficial effects of the present invention: The fuel in the tank passes through the pump's coarse filter and enters the fuel pump. After being pressurized by the pump core, it enters the filter through one end of the one-way valve. After passing through the fine filter, one end reaches the engine and the other end reaches the pressure regulating valve to maintain system pressure. The high-pressure fuel at the other end of the pump core enters the remote siphon valve, creating a siphon effect that continuously draws fuel from outside the tank into the tank.

[0011] When the system is shut down, the one-way valve and the pressure regulating valve work together to achieve the pressure maintaining function at the low-pressure end. When the fuel from the high-pressure end enters the low-pressure end, the constant pressure of the pressure regulating valve is used to maintain the pressure at the low-pressure end at the system pressure.

[0012] This solution is highly integrated with fine filters and closed oil level sensors, and has strong versatility, high integration, small footprint, better filtering effect, and can realize controllable and uncontrollable flows on the same platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of an embodiment of the present invention; Among them, there are the first oil storage tank 1, the coarse filter 2, the pump core 3, the one-way valve 4, the fine filter 5, the engine 6, the pressure regulating valve 7, the siphon valve 8, and the second oil storage tank 9. DETAILED DESCRIPTION

[0014] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention. Example

[0015] A highly integrated brushless pump assembly includes a first oil storage tank 1, a coarse filter 2, a pump core 3 and a fine filter 5. The oil storage tank is connected to the pump core 3 through the coarse filter 2; The first output port of the pump core 3 is connected to the fine filter 5 through a one-way valve 4; The first output port of the fine filter 5 is connected to the engine 6, and the second output port of the fine filter 5 is connected to the pressure regulating valve 7; The second output port of the pump core 3 is connected to the input port of the remote siphon valve 8 , and the siphon valve 8 is connected to the inside and outside of the second oil storage barrel 9 .

[0016] The pump core 3 is arranged in the first oil storage barrel 1 , and the oil inlet of the pump core 3 is located at the lower end, and the oil inlet of the pump core 3 is connected to the coarse filter 2 .

[0017] An oil outlet cavity is provided at the upper end of the pump core 3 , and the oil outlet cavity is used to communicate with the fine filter 5 and the distal siphon valve 8 .

[0018] The fine filter 5 is provided on the periphery of the oil outlet cavity. The first output port of the pump core 3 is provided on the periphery of the oil outlet cavity. The fine filter 5 is communicated with the first output port of the pump core 3 .

[0019] The top of the oil outlet cavity is provided with a second outlet of the pump core 3. The oil storage barrel is provided with a closed oil level gauge.

[0020] Beneficial effects of the present invention: The fuel in the tank passes through the pump's coarse filter 2 and enters the fuel pump. After being pressurized by the pump core 3, it enters the filter through one end of the check valve 4. After passing through the fine filter 5, one end reaches the engine 6 and the other end reaches the pressure regulating valve 7 to maintain system pressure. The high-pressure fuel at the other end of the pump core 3 enters the remote siphon valve 8, creating a siphon effect that continuously draws fuel from outside the tank into the tank.

[0021] When the system is shut down, the one-way valve 4 and the pressure regulating valve 7 work together to realize the pressure maintaining function at the low-pressure end; when the fuel at the high-pressure end enters the low-pressure end, the constant pressure effect of the pressure regulating valve 7 maintains the pressure at the low-pressure end at the system pressure.

[0022] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A highly integrated brushless pump assembly, characterized in that: It includes a first oil storage barrel, a coarse filter, a pump core and a fine filter, wherein the oil storage barrel is connected to the pump core via the coarse filter; The first output port of the pump core is connected to the fine filter via a one-way valve; The first output port of the fine filter is connected to the engine, and the second output port of the fine filter is connected to the pressure regulating valve; The second output port of the pump core is connected to the input port of the remote siphon valve, and the siphon valve is connected to the inside and outside of the second oil storage barrel.

2. A highly integrated brushless pump assembly according to claim 1, characterized in that: The pump core is arranged in the first oil storage barrel, the oil inlet of the pump core is located at the lower end, and the oil inlet of the pump core is connected to the coarse filter.

3. A highly integrated brushless pump assembly according to claim 1, characterized in that: An oil outlet cavity is provided at the upper end of the pump core, and the oil outlet cavity is used to communicate with the fine filter and the distal siphon valve.

4. A highly integrated brushless pump assembly according to claim 1, characterized in that: The fine filter is arranged on the periphery of the oil outlet cavity, the first output port of the pump core is arranged on the periphery of the oil outlet cavity, and the fine filter is communicated with the first output port of the pump core.

5. The highly integrated brushless pump assembly according to claim 1, characterized in that: The top of the oil outlet cavity is provided with a second output port of the pump core.

6. A highly integrated brushless pump assembly according to claim 1, characterized in that: The oil storage barrel is provided with a closed oil level gauge.

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