CN216131013U

CN216131013U - Oil gas coarse filtering device of fuel pump

Info

Publication number: CN216131013U
Application number: CN202122011008.6U
Authority: CN
Inventors: 陈伟伟
Original assignee: Changzhou Huadeng Hydraulic Equipment Co ltd
Current assignee: Changzhou Huadeng Hydraulic Equipment Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-25
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a fuel pump oil-gas coarse filtering device, which comprises an oil-gas filtering cylinder body, wherein one end of the oil-gas filtering cylinder body is detachably provided with an oil inlet pipe, one end, far away from the oil inlet pipe, in the oil-gas filtering cylinder body is provided with a filter element, one end, far away from the oil inlet pipe, of the oil-gas filtering cylinder body is provided with a sealing cover, the sealing cover is provided with an oil outlet pipe, one end, far away from the sealing cover, of the oil outlet pipe is connected with a fuel pump, a pressure reducing assembly used for buffering fuel entering the oil-gas filtering cylinder body is arranged in the oil-gas filtering cylinder body, and a disassembling assembly is arranged on the sealing cover; the inside one end that is close to sealed lid of oil gas filtration barrel is provided with the filter core interface, the one end that the filter core interface is close to sealed lid extends to the oil gas and filters the barrel outside and the filter core interface outside is provided with the screw thread, can cushion the high-pressure fuel that gets into in the oil gas filtration barrel through being provided with pressure reducing component, and the practicality is strong.

Description

Oil gas coarse filtering device of fuel pump

Technical Field

The utility model relates to the technical field of hydraulic equipment, in particular to a fuel pump oil and gas coarse filtering device.

Background

Fuel pumps are a term of art in the automotive industry. The fuel injection system is one of basic components of a fuel injection system of an electronic fuel injection automobile, is positioned in a fuel tank of the automobile, a fuel pump works during starting and running of an engine, and if the engine stops and an ignition switch is still in an ON state, a HFM-SFI control module turns off the power supply of the fuel pump so as to avoid accidental ignition. The fuel pump is used for sucking fuel from the fuel tank, pressurizing the fuel and then delivering the fuel to the fuel supply pipe, and the fuel pump is matched with the fuel pressure regulator to establish certain fuel pressure.

Among the thick filter equipment of current bulletin number CN21159886U fuel pump oil gas, through the screw-thread fit of filter core interface with sealed lid, be convenient for change the filter core, there are some shortcomings in this device when using, in the use fuel directly gets into the oil gas filter cylinder in, the fuel is big to the inside impact force of oil gas filter cylinder, influence the life of oil gas filter cylinder internals, and when changing the filter core, the intraductal remaining fuel of oil feed is easy to be followed the filter core and is located the seepage, influence the practicality.

In view of the above problems, an improved fuel pump oil and gas coarse filtering device is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fuel oil and gas coarse filtering device of a fuel pump, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a fuel pump oil and gas coarse filtering device comprises an oil and gas filtering barrel, wherein an oil inlet pipe is detachably arranged at one end of the oil and gas filtering barrel, a filter element is arranged at one end, away from the oil inlet pipe, in the oil and gas filtering barrel, a sealing cover is arranged at one end, away from the oil inlet pipe, of the oil and gas filtering barrel, an oil outlet pipe is arranged on the sealing cover, one end, away from the sealing cover, of the oil outlet pipe is connected with a fuel pump, a pressure reducing assembly used for buffering fuel entering the oil and gas filtering barrel is arranged in the oil and gas filtering barrel, and a disassembling assembly is arranged on the sealing cover;

the inside one end that is close to sealed lid of oil gas filtration barrel is provided with the filter core interface, the one end that the filter core interface is close to sealed lid extends to the oil gas and filters the barrel outside and the filter core interface outside is provided with the screw thread, set up the through-hole that matches with the filter core on the filter core interface, the spread groove that matches with the filter core interface is seted up to the one end that sealed lid is close to the oil gas filtration barrel, the inside thread groove that is provided with of spread groove, the one end that goes out oil pipe is close to sealed lid runs through sealed lid and extends to inside the through-hole.

Preferably, the pressure reducing assembly comprises a groove which is arranged inside the oil gas filtering cylinder body and close to one end of the oil inlet pipe, and one side of the groove is a liquid inlet channel.

Preferably, a spring is arranged in the groove, and one end, close to the oil inlet pipe, of the spring is connected with a piston in sliding connection with the inner wall of the groove.

Preferably, the length of the piston is larger than the inner diameter of an opening at one end of the liquid inlet channel close to the oil inlet pipe.

Preferably, one end of the sealing cover, which is close to the oil gas filtering cylinder, is provided with a guide block, and one side of the oil gas filtering cylinder, which is close to the sealing cover, is provided with a sliding groove matched with the guide block.

Preferably, the inner wall of one end of the oil-gas filtering cylinder body, which is close to the oil inlet pipe, is provided with a sealing ring matched with the oil inlet pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. the fuel oil filter device is provided with the disassembling component, fuel oil can be conveyed into the oil gas filtering cylinder body from the oil inlet pipe by starting the fuel oil pump, so that the fuel oil is filtered, the sealing cover can be separated from the filter element connector by rotating the sealing cover, so that the filter element can be conveniently taken out from the through hole, the filter element is conveniently replaced after the filter element is blocked, the sealing cover can be positioned when the sealing cover is installed by matching the guide block and the sliding groove, and the fuel oil filter device is high in practicability.

2. The device is provided with the pressure reducing assembly, when fuel is conveyed into the oil-gas filtering cylinder body from the oil inlet pipe, the fuel can generate acting force on the piston, the piston can move towards the direction close to the spring under the action of the spring, high-pressure fuel entering the oil-gas filtering cylinder body can be buffered, the fuel can move towards the direction close to the filtering core through the liquid inlet channel, the gas storage amount in the oil-gas filtering cylinder body can be increased, and the service life of the device can be prolonged.

3. Stop carrying the fuel to the oil gas cartridge filter body when changing the filter core among the device of the utility model, the piston can resume the normal position under the effect of spring, can block up the inlet channel near the one end opening of advancing the oil pipe, can prevent to advance the intraductal remaining fuel seepage of oil, is favorable to improving the leakproofness of device, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of a fuel gas coarse filtering device of a fuel pump.

Fig. 2 is a schematic structural diagram of the interior of a fuel gas coarse filtering device of a fuel pump.

Fig. 3 is a schematic structural diagram of a guide block in a fuel gas coarse filtering device of a fuel pump.

The oil-gas filter comprises an oil-gas filter cylinder body 11, an oil inlet pipe 12, a sealing cover 13, a filter element connector 14, a filter element 15, a filter element 16, an oil outlet pipe 17, a fuel pump 18, a groove 18, a spring 19, a piston 20, a liquid inlet channel 21, a guide block 22 and a sliding groove 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, in an embodiment of the present invention, a fuel pump oil and gas coarse filtering apparatus includes an oil and gas filtering cylinder 11, an oil inlet pipe 12 is detachably disposed at one end of the oil and gas filtering cylinder 11, a filter element 15 is disposed at one end of the oil and gas filtering cylinder 11, which is far away from the oil inlet pipe 12, a sealing cover 13 is disposed at one end of the oil and gas filtering cylinder 11, which is far away from the oil inlet pipe 12, an oil outlet pipe 16 is disposed on the sealing cover 13, a fuel pump 17 is connected to one end of the oil outlet pipe 16, which is far away from the sealing cover 13, a pressure reducing assembly for buffering fuel oil entering the oil and gas filtering cylinder 11 is disposed inside the oil and gas filtering cylinder 11, and a detaching assembly is disposed on the sealing cover 13;

the inside one end that is close to sealed lid 13 of oil gas filtration barrel 11 is provided with filter core interface 14, the one end that filter core interface 14 is close to sealed lid 13 extends to the oil gas and filters the barrel 11 outside and the filter core interface 14 outside is provided with the screw thread, set up the through-hole that matches with filter core 15 on the filter core interface 14, the sealed lid 13 is close to the one end that oil gas filtered barrel 11 and sets up the spread groove that matches with filter core interface 14, the inside thread groove that is provided with of spread groove, the one end that goes out oil pipe 16 is close to sealed lid 13 runs through sealed lid 13 and extends to inside the through-hole.

The pressure reducing assembly is including setting up at the inside recess 18 that is close to into oil pipe 12 one end of oil

gas filtration barrel

11, 18 one side of recess is inlet channel 21, the inside spring 19 that is provided with of recess 18, the one end that spring 19 is close to into oil pipe 12 is connected with the piston 20 with 18 inner wall sliding connection of recess, when fuel from the oil pipe in carried to the oil gas filtration barrel internal, the fuel can produce the effort to the piston, the piston can remove to the direction that is close to the spring under the effect of spring, can cushion the high pressure fuel that gets into the oil gas filtration barrel internal, the inside gas storage volume of increase oil gas filtration barrel is favorable to extension fixture's life.

Piston 20's length is greater than the opening internal diameter that inlet channel 21 is close to into oil pipe 12 one end, stops to carry the fuel to oil gas filter cartridge when changing the filter core, and the piston can resume the normal position under the effect of spring, can block up the inlet channel one end opening that is close to into oil pipe, can prevent the interior remaining fuel seepage of inlet pipe.

The one end that sealed lid 13 is close to oil gas filtering barrel 11 is provided with guide block 22, oil gas filtering barrel 11 is close to one side of sealed lid 13 and offers the spout 23 that matches with guide block 22, can fix a position sealed lid when sealed lid installation through the cooperation of guide block and spout.

The oil gas filters the one end inner wall that barrel 11 is close to into oil pipe 12 and is provided with the sealing washer that matches with into oil pipe 12, can improve the leakproofness of advancing oil pipe and oil gas and filtering the barrel junction, prevents the fuel leakage.

The working principle of the utility model is as follows: during the use, start the fuel pump and can be carried the fuel to the oil gas from the inlet tube and filter the barrel inside, thereby filter the fuel, when the fuel is carried to the oil gas cartridge filter when internal from the oil feed pipe, the fuel can produce the effort to the piston, the piston can remove to the direction that is close to the spring under the effect of spring, can cushion the high-pressure fuel that gets into the oil gas cartridge filter, the fuel can remove to the direction that is close to the filter core through inlet channel, can increase the inside gas storage volume of oil gas filter barrel, can separate sealed lid and filter core interface through rotating sealed lid, thereby be convenient for take out the filter core from through-hole department, be convenient for change the filter core after the filter core is blockked up, moreover, the steam generator is simple in structure, and convenient for operation, therefore, the clothes hanger is strong in practicability.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

Claims

1. The fuel pump oil and gas coarse filtering device comprises an oil and gas filtering cylinder body (11), wherein an oil inlet pipe (12) is detachably arranged at one end of the oil and gas filtering cylinder body (11), a filter element (15) is arranged at one end, far away from the oil inlet pipe (12), in the oil and gas filtering cylinder body (11), and a sealing cover (13) is arranged at one end, far away from the oil inlet pipe (12), of the oil and gas filtering cylinder body (11), an oil outlet pipe (16) is arranged on the sealing cover (13), one end, far away from the sealing cover (13), of the oil outlet pipe (16) is connected with a fuel pump (17), a pressure reducing assembly used for buffering fuel oil entering the oil and gas filtering cylinder body (11) is arranged in the oil and gas filtering cylinder body (11), and a disassembling assembly is arranged on the sealing cover (13);

the inside one end that is close to sealed lid (13) of oil gas filtration barrel (11) is provided with filter core interface (14), the one end that is close to sealed lid (13) of filter core interface (14) extends to oil gas filtration barrel (11) outside and filter core interface (14) outside and is provided with the screw thread, set up the through-hole that matches with filter core (15) on filter core interface (14), the spread groove that matches with filter core interface (14) is seted up to the one end that is close to oil gas filtration barrel (11) of sealed lid (13), the inside thread groove that is provided with of spread groove, it runs through sealed lid (13) and extends to inside the through-hole to go out oil pipe (16) the one end that is close to sealed lid (13).

2. The fuel pump fuel gas coarse filtering device according to claim 1, wherein the pressure reducing component comprises a groove (18) which is arranged inside the fuel gas filtering cylinder body (11) and close to one end of the fuel inlet pipe (12), and one side of the groove (18) is provided with a liquid inlet channel (21).

3. The fuel pump fuel gas coarse filtering device as claimed in claim 2, characterized in that a spring (19) is arranged inside the groove (18), and one end of the spring (19) close to the fuel inlet pipe (12) is connected with a piston (20) which is in sliding connection with the inner wall of the groove (18).

4. A fuel pump crude oil and gas filtering device as claimed in claim 3, wherein the length of said piston (20) is greater than the inner diameter of the opening of the inlet passage (21) near the end of the inlet pipe (12).

5. The fuel pump fuel gas coarse filtering device according to claim 1, wherein a guide block (22) is arranged at one end of the sealing cover (13) close to the fuel gas filtering cylinder (11), and a sliding groove (23) matched with the guide block (22) is formed in one side of the fuel gas filtering cylinder (11) close to the sealing cover (13).

6. The fuel pump fuel gas coarse filtering device according to claim 1, wherein a sealing ring matched with the oil inlet pipe (12) is arranged on the inner wall of one end, close to the oil inlet pipe (12), of the fuel gas filtering cylinder body (11).