CN213144639U

CN213144639U - Fuel filter seat

Info

Publication number: CN213144639U
Application number: CN202021521057.3U
Authority: CN
Inventors: 郑光华
Original assignee: Rui'an Zhengyuan Mechanical Electric Appliance Co ltd
Current assignee: Rui'an Zhengyuan Mechanical Electric Appliance Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-05-07
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to the technical field of fuel filters, in particular to a fuel filter seat, which comprises a seat body, the seat body is respectively provided with an unfiltered fuel inlet, an unfiltered fuel outlet, a filtered fuel inlet and a filtered fuel outlet, the seat body is also internally provided with an oil transfer pump which is arranged in a pipeline communicated with the filtered fuel inlet and the filtered fuel outlet, the fuel delivery pump comprises a pump body, an oil inlet and an oil outlet are respectively arranged at two sides of the pump body, the oil inlet is communicated with the filtered fuel inlet, the oil outlet is communicated with the filtered fuel outlet, a pump cavity is formed in the pump body, a rotor is eccentrically arranged in the pump cavity, a plurality of roller grooves are formed in the periphery of the rotor, rollers are movably arranged in the roller grooves, when the rotor runs, the roller reciprocates in the roller groove under the matching of the rotor and the pump body, and the rotor is tightly matched with the upper side surface of the pump cavity.

Description

Fuel filter seat

Technical Field

The utility model relates to a fuel filter technical field specifically is a fuel filter seat.

Background

The fuel filter seat is mainly used for connecting a fuel filter element and providing clean fuel for elements such as a fuel pump, a fuel spray nozzle and the like of an engine fuel system, and a fuel delivery pump in the fuel filter seat is used for delivering diesel oil and discharging air to a low-pressure oil way so as to ensure that an engine can be normally started and operated. The traditional fuel filter base is internally provided with a one-way valve, when the engine does not work when the fuel delivery pump does not work, fuel passes through the oil inlet, the one-way valve and the filter to the oil outlet, wherein impurities in unfiltered fuel are easy to be detained on the sealing surface of the one-way valve, so that the one-way valve cannot be completely closed, and the fuel delivery pump cannot achieve the purpose of sufficient fuel delivery or exhaust.

The fuel filter base and the fuel filter provided with the same as disclosed in 201920362095.X, the fuel filter base comprises a base body, the base body is provided with an unfiltered fuel inlet, an unfiltered fuel outlet, a filtered fuel inlet and a filtered fuel outlet, a one-way valve is arranged in the filtered fuel outlet, the fuel filter further comprises an electric pump arranged in the base body, an electric pump inlet of the electric pump is communicated with the filtered fuel inlet, and an electric pump outlet of the electric pump is communicated with the filtered fuel outlet; the unfiltered fuel inlet and the filtered fuel outlet are coaxially arranged, the unfiltered fuel outlet and the filtered fuel inlet are coaxially arranged with the seat body, and the axes of the unfiltered fuel inlet and the filtered fuel outlet are perpendicular to and intersect with the axes of the unfiltered fuel outlet, the filtered fuel inlet and the seat body.

When the engine works, fuel oil firstly passes through the filter element for filtration and then enters the filtered fuel oil inlet, and is discharged from the filtered fuel oil outlet through the one-way valve, so that the problem that the one-way valve cannot be normally closed due to the influence of impurities in the fuel oil is solved, but the fuel oil filter seat has a complex inner structure, is difficult to manufacture, has high production cost, and can be damaged as long as the one-way valve is used for a long time, so that the engine cannot normally work.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention is directed to: the fuel filter base has simple structure and convenient manufacture, and does not need a one-way valve.

The technical scheme of the utility model: the utility model provides a fuel filter base, includes the pedestal, be equipped with unfiltered fuel import, unfiltered fuel export, filtration fuel import and filtration fuel export on the pedestal respectively, still be equipped with the fuel delivery pump in the pedestal, the fuel delivery pump is established in the pipeline that is linked together with filtering fuel import, the fuel delivery pump includes the pump body, pump body both sides are equipped with oil inlet and oil-out respectively, the oil inlet with filter the fuel import and be linked together, the oil-out with filter the fuel export and be linked together, be formed with the pump chamber in the pump body, eccentric in the pump chamber is provided with the rotor, and the rotor periphery is formed with a plurality of roller groove, and the roller inslot is all movably provided with the roller, the roller is reciprocating motion in the roller groove under the cooperation of rotor and pump body when the rotor operation, the side closely cooperates on rotor and the pump chamber.

Furthermore, the unfiltered fuel outlet is arranged on the bottom surface of the seat body and communicated with the unfiltered fuel inlet.

Further, the unfiltered fuel inlet and the unfiltered fuel outlet are vertically arranged, and the unfiltered fuel inlet is arranged at the bottom of the seat body.

Furthermore, a mounting cavity for fixing the fuel delivery pump is arranged in the base body, and the mounting cavity is communicated with the filtered fuel inlet and the filtered fuel outlet.

Furthermore, the number of the roller grooves on the rotor is 5, and the roller grooves are uniformly distributed on the periphery of the rotor.

Furthermore, a constant temperature device for controlling the temperature of the fuel oil is arranged in the seat body.

Furthermore, when the rotor runs, the other end of the roller groove, which is abutted against the roller, is provided with an overflow groove.

Furthermore, the oil inlet is a crescent oil inlet groove, and the oil outlet is a fan-shaped hole.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses a fuel is carried to the fuel delivery pump, and in the fuel passageway after filtering, impurity in having avoided the fuel got into the pump body, influences fuel delivery pump life, just the utility model discloses need not set up the check valve in filtering the fuel export, when the fuel delivery pump is static, the fuel can be followed the pump body and smoothly crossed oil, and the phenomenon of avoiding leading to the unable normal work of engine because of the check valve damages, need not set up the check valve in the pedestal after, makes inner structure become simpler, more convenient manufacturing.

2. The utility model discloses the bottom surface at the pedestal is established in the outlet of unfiltered fuel, makes things convenient for the filter core to connect.

3. The utility model discloses unfiltered fuel import is established in the pedestal bottom, more is close to unfiltered fuel export, makes the efficiency of carrying the fuel higher.

4. The utility model discloses the periphery evenly distributed of rotor is 5 roller grooves, is favorable to promoting the oil delivery volume of the pump body.

5. The utility model discloses the constant temperature equipment solution should low temperature weather, and diesel oil viscosity increases, leads to the not enough problem of fuel feeding.

6. The utility model discloses the one end in roller groove is equipped with the overflow launder, is favorable to the fuel discharge in the fuel delivery pump.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is one of the schematic structural diagrams of the present invention

FIG. 2 is a second schematic view of the present invention

FIG. 3 is a schematic view of the internal structure of the present invention

FIG. 4 is a left side view of the fuel delivery pump

FIG. 5 is a right side view of the fuel delivery pump

FIG. 6 is a schematic view of the internal structure of the oil transfer pump

In the figure: 10-seat body, 20-fuel delivery pump, 101-unfiltered fuel inlet, 102-unfiltered fuel outlet, 103-filtered fuel inlet, 104-filtered fuel outlet, 105-installation cavity, 106-constant temperature device, 201-pump body, 202-oil inlet, 203-oil outlet, 205-rotor, 206-roller groove, 207-roller and 208-overflow groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-6, a fuel filter base includes a base body 10, the base body 10 is respectively provided with an unfiltered fuel inlet 101, an unfiltered fuel outlet 102, a filtered fuel inlet 103 and a filtered fuel outlet 104, the base body 10 is further provided with a fuel delivery pump 20, the fuel delivery pump 20 is arranged in a pipeline communicating the filtered fuel inlet 103 and the filtered fuel outlet 104, the fuel delivery pump 20 includes a pump body 201, two sides of the pump body 201 are respectively provided with an oil inlet 202 and an oil outlet 203, the oil inlet 202 is communicated with the filtered fuel inlet 103, the oil outlet 203 is communicated with the filtered fuel outlet 104, a pump cavity 204 is formed in the pump body 201, a rotor 205 is eccentrically arranged in the pump cavity 204, a plurality of roller grooves 206 are formed on the periphery of the rotor 205, rollers 207 are movably arranged in the roller grooves 206, when the rotor 205 operates, the rollers 207 reciprocate in the roller grooves 206 under the cooperation of the rotor 205 and the pump body 201, the rotor 205 mates with the upper side of the pump chamber 204. Specifically, the utility model discloses a fuel filter seat, the unfiltered fuel export 102 department in the bottom of the base 10 connects with the filter core of filtering the fuel, when the engine is out of work, the fuel transfer pump 20 works, the fuel flows in by unfiltered fuel import 101 earlier, passes unfiltered fuel export 102 and gets into the filter core and filters, flows in from filtered fuel import 103 again, through the fuel transfer pump 20, discharges from filtered fuel export 104; when the engine during operation, the fuel delivery pump 20 is out of work, and the fuel still flows in from unfiltered fuel import 101, passes unfiltered fuel export 102 and gets into in the filter core and filters, flows in from filtered fuel import 103 again, through fuel delivery pump 20, discharges from filtering fuel export 104, because the utility model provides a fuel delivery pump 20 is ZL 201420487563.3's fuel delivery pump, when fuel delivery pump 20 is static, and the fuel promotes roller 207 and is close to the one end of roller groove 206 under the oil pumping effect of engine, makes roller 207 give way the passageway of oil, has realized that fuel delivery pump 20 quiescent condition fuel smoothly passes through, ensures engine normal operating.

As shown in fig. 1, the unfiltered fuel outlet 102 is disposed on the bottom surface of the housing 10 and is in communication with the unfiltered fuel inlet 101. Specifically, the filter element is connected to the unfiltered fuel outlet 102, and the unfiltered fuel outlet 102 is disposed at the bottom of the seat body 10, so as to facilitate connection of the filter element.

Further, the unfiltered fuel inlet 101 is perpendicular to the unfiltered fuel outlet 102, and the unfiltered fuel inlet 101 is disposed at the bottom of the housing 10. Specifically, the unfiltered fuel inlet 101 and the unfiltered fuel outlet 102 are communicated with each other, and the unfiltered fuel inlet 101 is arranged at the bottom of the seat body 10, so that the unfiltered fuel inlet and the unfiltered fuel outlet are closer to each other, and the delivery efficiency of the fuel in the seat body 10 is improved.

Further, a mounting cavity 105 for fixing the fuel delivery pump 20 is arranged in the seat body 10, and the mounting cavity 105 is communicated with the filtered fuel inlet 103 and the filtered fuel outlet 104. Specifically, installation cavity 105 is mainly used for connecting transfer pump 20, sets up installation cavity 105 on filtering fuel's transfer passage, prevents that impurity in the fuel from getting into transfer pump 20 in, influences transfer pump 20 life.

As shown in fig. 6, the number of the roller grooves 206 on the rotor 205 is 5, and the roller grooves are uniformly distributed on the outer circumference of the rotor 205. Specifically, 5 roller grooves 206 are uniformly distributed on the outer periphery of the rotor 205, so that the flow cannot be limited at any rotation angle of the rotor 205.

Further, a thermostat 106 for controlling the temperature of the fuel is provided in the seat body 10. Specifically, the viscosity of the fuel increases in low temperature climates, resulting in insufficient fuel supply, and the thermostat 106 in the housing 10 prevents the fuel from cooling.

Further, when the rotor 205 is operated, an overflow groove 208 is provided at the other end of the roller groove 206 where the roller 207 abuts. Specifically, the roller groove 206 is provided with an overflow groove 208, and when the rotor 205 rotates, the overflow groove 208 increases the cross-sectional area of the passage during oil passing, so that the flow rate is increased.

As shown in fig. 4 and 5, the oil inlet 202 is a crescent oil inlet groove, and the oil outlet 203 is a fan-shaped hole. Specifically, the oil inlet 202 is communicated with a roller groove 206 on the rotor 205, the crescent shape facilitates oil inlet, and the oil outlet 203 is matched with an overflow groove 208 on the rotor 205 and designed into a fan shape to facilitate oil outlet.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A fuel filter base comprises a base body (10), wherein an unfiltered fuel inlet (101), an unfiltered fuel outlet (102), a filtered fuel inlet (103) and a filtered fuel outlet (104) are respectively arranged on the base body (10), and a fuel delivery pump (20) is further arranged in the base body (10), and is characterized in that the fuel delivery pump (20) is arranged in a pipeline communicated with the filtered fuel inlet (103) and the filtered fuel outlet (104), the fuel delivery pump (20) comprises a pump body (201), an oil inlet (202) and an oil outlet (203) are respectively arranged on two sides of the pump body (201), the oil inlet (202) is communicated with the filtered fuel inlet (103), the oil outlet (203) is communicated with the filtered fuel outlet (104), a pump cavity (204) is formed in the pump body (201), and a rotor (205) is eccentrically arranged in the pump cavity (204), a plurality of roller grooves (206) are formed in the periphery of the rotor (205), rollers (207) are movably arranged in the roller grooves (206), the rollers (207) reciprocate in the roller grooves (206) under the matching of the rotor (205) and the pump body (201) when the rotor (205) operates, and the rotor (205) is tightly matched with the upper side face of the pump cavity (204).

2. A fuel filter base as claimed in claim 1, characterised in that the unfiltered fuel outlet (102) is provided in the underside of the base body (10) and is in communication with the unfiltered fuel inlet (101).

3. A fuel filter stand as claimed in claim 2, in which the unfiltered fuel inlet (101) is arranged perpendicular to the unfiltered fuel outlet (102), the unfiltered fuel inlet (101) being arranged at the bottom of the stand (10).

4. A fuel filter base as claimed in claim 1, characterised in that a mounting chamber (105) for securing a fuel delivery pump (20) is provided in the base body (10), the mounting chamber (105) being in communication with the filtered fuel inlet (103) and the filtered fuel outlet (104).

5. A fuel filter mount as claimed in claim 1, characterized in that the number of roller slots (206) in the rotor (205) is 5, evenly distributed over the circumference of the rotor (205).

6. A fuel filter base as claimed in claim 1, characterised in that a thermostat (106) is provided in the base (10) to control the temperature of the fuel.

7. A fuel filter mount as claimed in claim 1, wherein the other end of the roller groove (206) which abuts against the roller (207) is provided with an overflow groove (208) when the rotor (205) is in operation.

8. The fuel filter base as claimed in claim 1, wherein the oil inlet (202) is a crescent-shaped oil inlet groove, and the oil outlet (203) is a fan-shaped hole.