Diesel engine oil tank

Abstract

The utility model provides a diesel engine oil tank which comprises an oil tank body, the top side of the tank body comprises an oil tank filter, the oil tank filter comprises a shell, the shell is installed on the top side of the oil tank body, the top side is provided with an oil inlet and a water inlet, the bottom side is provided with an oil outlet pipe and a water outlet pipe, the oil outlet pipe extends towards the inner side of the oil tank body, and the water outlet pipe extends towards the outer side of the oil tank body. Valves are mounted on the oil outlet pipe and the water outlet pipe; the oil inlet cavity is formed in the bottom side of the oil inlet and communicates with the water outlet pipe; the water inlet cavity is formed in the bottom side of the water inlet and communicates with the oil outlet pipe; the filter pipe is arranged between the oil inlet cavity and the water inlet cavity, and the diameters of the two ends of the filter pipe gradually decrease from the middle to the middle. The oil tank does not need to be frequently disassembled, the filter screen does not need to be replaced, the filter screen is regularly and reversely washed through the water inlet, and the process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tanks, in particular to an oil tank for a diesel engine. Background Art

[0002] During the use of a diesel engine, a large amount of impurities will be generated in the diesel over a long period of time and accumulate at the bottom of the fuel tank. The accumulation of impurities will cause the tank to be clogged, the oil outlet or oil channel to be blocked, or cause insufficient fuel supply or impurity damage to the diesel engine, affecting the working efficiency and power performance of the diesel engine.

[0003] Chinese patent publication number CN104976002A discloses a decontamination oil tank for a diesel engine, which includes: an upper box body and a lower box body that cooperate with each other, an upper connecting edge is provided at the lower end of the upper box body, and a lower connecting edge is provided at the lower end of the lower box body, and a filtering device is provided inside the lower box body, and the filtering device includes: inclined filter screens symmetrically arranged on both sides of the lower box body, the lower ends of the two inclined filter screens are connected by the bottom inclined filter screen, a drain pipe is provided on the lower box body at one end of the bottom filter screen, and a sealing cover that cooperates with it is provided at the slag discharge port of the drain pipe, a valve seat is provided inside the drain pipe at one end close to the lower box body, a ball valve is rotatably provided in the valve seat, a connecting channel is provided in the ball valve, one end of the valve stem extends into the valve seat and is connected to the ball valve, and the other end of the valve stem extends out of the drain pipe and is connected to the rotating handle.

[0004] In the above technology, the fuel tank is composed of two parts, the upper and lower parts. To replace the filter, the fuel tank needs to be disassembled, which is quite troublesome. Utility Model Content

[0005] In view of the above problems, the utility model provides a diesel engine oil tank.

[0006] A diesel engine fuel tank comprises a fuel tank body, the top side of the body comprising a fuel tank filter, the fuel tank filter comprising: a shell mounted on the top side of the fuel tank body, the top side being provided with an oil inlet and a water inlet, the bottom side being provided with an oil outlet pipe and a water outlet pipe, the oil outlet pipe extending toward the inside of the fuel tank body, the water outlet pipe extending toward the outside of the fuel tank body, and valves being mounted on both the oil outlet pipe and the water outlet pipe; an oil inlet chamber being arranged at the bottom side of the oil inlet and communicating with the water outlet pipe; a water inlet chamber being arranged at the bottom side of the water inlet and communicating with the oil outlet pipe; a filter tube being arranged between the oil inlet chamber and the water inlet chamber, the diameters of the two ends of the filter tube gradually decreasing toward the diameter of the middle portion of the filter tube.

[0007] In a preferred embodiment, the diameters at both ends of the filter tube are 1 / 4 to 1 / 3 of the diameter of the middle portion of the filter tube.

[0008] In a preferred embodiment, multiple filter screens are installed in the filter pipe, and the pore size of the filter screen on the oil outlet pipe side is smaller than the pore size of the filter screen on the water outlet pipe side.

[0009] In a preferred embodiment, a mounting groove is provided on the fuel tank body, and the filter tube is mounted in the mounting groove by pulling.

[0010] In a preferred embodiment, the water inlet chamber is provided with: a support frame; an outer sleeve, fixed on the support frame, a plurality of buffer springs, the plurality of buffer springs are provided on the support frame inside the outer sleeve, and a guide rod fixed to the support frame is provided in any buffer spring; a sliding sealing block, slidably provided on the inner side of the outer sleeve, with a guide groove on the bottom side, the guide groove being slidably connected to the guide rod; a water trough, provided in the water inlet chamber and matched with the top side of the sliding sealing block.

[0011] In a preferred embodiment, the top side of the sliding sealing block is hemispherical, and the bottom side is cylindrical.

[0012] In a preferred embodiment, an O-ring is provided between the outer sleeve and the sliding sealing block.

[0013] When this application is working, when adding diesel, close the outlet pipe valve, then let the diesel enter the fuel tank filter from the oil inlet. After passing through the oil inlet chamber and being filtered by the filter tube, the diesel enters the fuel tank body through the oil outlet pipe. When the filter tube needs to be cleaned, close the oil outlet pipe valve, open the outlet pipe valve, connect the water pipe to the water inlet, and let clean water pass through the water inlet chamber and then flush the filter tube from the other side. After the impurities in the filter tube are flushed by the clean water, they are discharged from the water outlet pipe. This device does not require frequent disassembly of the fuel tank and replacement of the filter screen. It only needs to be regularly reverse-flushed through the regular water inlet. The process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other characteristics, features and advantages of the present invention will become clear by reading the following description of exemplary embodiments with reference to the accompanying drawings. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort.

[0015] Figure 1 Structural diagram of the diesel engine fuel tank of this utility model;

[0016] Figure 2 A cross-sectional view of the fuel tank of a diesel engine according to the present invention;

[0017] Figure 3 A cross-sectional view of the fuel tank filter of the utility model;

[0018] Figure 4 A cross-sectional view of the water inlet chamber state 1 of the utility model;

[0019] Figure 5 Cross-sectional view of the water inlet chamber state 2 of the present invention.

[0020] In the figure: 10, fuel tank body; 11, fuel tank filter; 20, housing; 21, oil inlet; 22, water inlet; 23, oil outlet pipe; 24, water outlet pipe; 25, valve; 30, oil inlet chamber; 31, water inlet chamber; 32, filter tube; 321, filter screen; 111, mounting groove; 40, support frame; 41, outer sleeve; 42, buffer spring; 43, guide rod; 44, sliding sealing block; 45, guide groove; 46, water trough; 47, O-ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other in any way.

[0022] The diesel engine oil tank is described in detail below with reference to the accompanying drawings and embodiments. Example

[0023] A diesel engine fuel tank includes a fuel tank body 10, and the top side of the body includes a fuel tank filter 11, and the fuel tank filter 11 includes: a shell 20, installed on the top side of the fuel tank body 10, with an oil inlet 21 and a water inlet 22 provided on the top side, and an oil outlet pipe 23 and a water outlet pipe 24 provided on the bottom side, the oil outlet pipe 23 extends toward the inside of the fuel tank body 10, and the water outlet pipe 24 extends toward the outside of the fuel tank body 10, and valves 25 are installed on the oil outlet pipe 23 and the water outlet pipe 24; an oil inlet chamber 30, arranged at the bottom side of the oil inlet 21 and connected to the water outlet pipe 24; a water inlet chamber 31, arranged at the bottom side of the water inlet 22 and connected to the oil outlet pipe 23; a filter tube 32, arranged between the oil inlet chamber 30 and the water inlet chamber 31, and the diameters of the two ends of the filter tube 32 gradually decrease toward the middle diameter of the filter tube 32.

[0024] During operation, when adding diesel, the valve 25 of the water outlet pipe 24 is closed, and then the diesel is injected into the fuel tank filter 11 from the oil inlet 21. The diesel first passes through the oil inlet chamber 30 and is then filtered by the filter tube 32. The diesel then flows into the fuel tank body 10 from the oil outlet pipe 23. When the filter tube 32 needs to be cleaned, the valve 25 of the oil outlet pipe 23 is closed, the valve 25 of the water outlet pipe 24 is opened, and the water pipe is connected to the water inlet 22. Clean water passes through the water inlet chamber 31 and then flushes the filter tube 32 from the other side. After the impurities in the filter tube 32 are flushed by the clean water, they are discharged from the water outlet pipe 24. This device does not require frequent disassembly of the fuel tank and replacement of the filter screen. It only requires regular backwashing of the filter screen 321 through the water inlet 22. The whole process is simple and convenient.

[0025] The oil outlet pipe 23 and the valve 25 on the oil outlet pipe 23 can be arranged in a separate regulating installation box, and a top cover plate is provided to facilitate the staff to manually close the valve 25 on the oil outlet pipe 23.

[0026] Among them, the diameter of both ends of the filter tube 32 gradually decreases towards the middle of the filter tube 32, that is, the Venturi tube, which can accelerate the flow rate of clean water in the middle of the filter tube 32, making the recoil force of the clean water stronger, and more conducive to flushing the filter screen 321 of the filter tube 32, thereby avoiding clogging of the filter screen 321.

[0027] The diameters of the two ends of the filter tube 32 are 1 / 4 to 1 / 3 of the diameter of the middle portion of the filter tube 32 .

[0028] The cross section of the filter tube 32 may be circular or rectangular. Example

[0029] Example 2 is an improvement on Example 1. Multiple filter screens 321 are installed in the filter tube 32 . The pore size of the filter screen 321 on the oil outlet pipe 23 side is smaller than the pore size of the filter screen 321 on the water outlet pipe 24 side.

[0030] Among them, by setting the filter screens 321 with different pore sizes, the impurities in the diesel are filtered in layers. The side close to the oil inlet 21 can first filter out impurity particles with larger diameters, and the side away from the oil inlet 21 can filter the impurity particles step by step. Example

[0031] Example 3 is an improvement on Example 1. In order to more conveniently remove the filter tube 32 , a mounting groove 111 is provided on the fuel tank body 10 , and the filter tube 32 is mounted in the mounting groove 111 by pulling.

[0032] Among them, the filter tube 32 is installed in the installation groove 111 by pulling and pulling, which is similar to a drawer structure. It specifically includes two upper and lower horizontal partitions, and longitudinal partitions on both sides of the filter tube 32. A sealing structure is formed between the two horizontal partitions, the two longitudinal partitions and the oil inlet chamber 30 and the water inlet chamber 31. Four guide rails are set on the side of the installation groove 111. The four guide rails are slidably connected to the two horizontal partitions. Multiple filter tubes 32 can be set between the two horizontal partitions. Multiple filter tubes 32 pass through the longitudinal partitions on both sides and are respectively connected to the oil inlet chamber 30 and the water inlet chamber 31, so as to ensure that the two horizontal partitions can be easily pulled out through the handle. The two longitudinal partitions and multiple filter tubes 32 form an integral structure. Example

[0033] Example 4 is an improvement on Example 1, in which a support frame 40 is provided in the water inlet chamber 31; an outer sleeve 41 is fixed on the support frame 40, and a plurality of buffer springs 42 are provided on the support frame 40 on the inner side of the outer sleeve 41, and a guide rod 43 fixed to the support frame 40 is provided in any buffer spring 42; a sliding sealing block 44 is slidingly provided on the inner side of the outer sleeve 41, and has a guide groove 45 on the bottom side, and the guide groove 45 is slidingly connected to the guide rod 43; a water flow groove 46 is provided in the water inlet chamber 31 and matched with the top side of the sliding sealing block 44.

[0034] The top side of the sliding sealing block 44 is hemispherical, and the bottom side is cylindrical.

[0035] An O-ring 47 is provided between the outer sleeve 41 and the sliding sealing block 44 .

[0036] During operation, diesel is injected into the oil inlet 21, and under the action of the buffer spring 42, the water groove 46 is sealed with the top side of the sliding sealing block 44, and the water groove 46 channel is closed; when water is injected into the water inlet 22, under the action of water pressure, the bottom side of the sliding sealing block 44 slides downward along the outer sleeve 41, and at the same time, the guide rod 43 and the guide groove 45 slide, the buffer spring 42 is compressed, the water groove 46 and the sliding sealing block 44 are opened, so that the water groove 46 channel is opened, and clean water can enter the filter tube 32 through the water groove 46.

[0037] The support frame 40 may be selected to have a circular structural plate in the middle, with 3 or 4 fixing rods evenly distributed around the circumference, and the fixing rods are fixedly connected to the inner wall of the water channel 46 .

[0038] The top side of the sliding sealing block 44 can be made of rubber.

[0039] The top and bottom sides of the buffer spring 42 can be fixed with pressure plates, and the two pressure plates are fixedly connected to the bottom side of the sliding sealing block 44 and the top side of the support frame 40 respectively.

[0040] The water channel 46 is formed by an annular partition fixed to the water inlet chamber 31 .

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0042] The above embodiments are intended to illustrate the technical solutions of the present invention and are not intended to limit the present invention. The present invention is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications and replacements shall be covered by the claims of the present invention.

Claims

1. A diesel engine fuel tank, comprising a fuel tank body (10), characterized in that: The top side of the tank body includes a fuel tank filter (11), and the fuel tank filter (11) includes: A housing (20) is mounted on the top side of the oil tank body (10), with an oil inlet (21) and a water inlet (22) provided on the top side, and an oil outlet pipe (23) and a water outlet pipe (24) provided on the bottom side, wherein the oil outlet pipe (23) extends toward the inside of the oil tank body (10), and the water outlet pipe (24) extends toward the outside of the oil tank body (10), and valves (25) are installed on both the oil outlet pipe (23) and the water outlet pipe (24); An oil inlet chamber (30) is provided at the bottom side of the oil inlet port (21) and is in communication with the water outlet pipe (24); A water inlet cavity (31) is provided at the bottom side of the water inlet (22) and is in communication with the oil outlet pipe (23); The filter tube (32) is arranged between the oil inlet chamber (30) and the water inlet chamber (31), and the diameters of the two ends of the filter tube (32) gradually decrease toward the middle of the filter tube (32).

2. The diesel engine fuel tank according to claim 1, characterized in that: The diameters at both ends of the filter tube (32) are 1 / 4 to 1 / 3 of the diameter of the middle portion of the filter tube (32).

3. The diesel engine fuel tank according to claim 1, characterized in that: Multiple filter screens (321) are installed in the filter pipe (32), and the pore size of the filter screen (321) on the side of the oil outlet pipe (23) is smaller than the pore size of the filter screen (321) on the side of the water outlet pipe (24).

4. The diesel engine fuel tank according to claim 1, characterized in that: The oil tank body (10) is provided with a mounting groove (111), and the filter tube (32) is mounted in the mounting groove (111) by pulling.

5. The diesel engine fuel tank according to claim 1, characterized in that: The water inlet cavity (31) is provided with: Support frame (40); The outer sleeve (41) is fixed on the support frame (40). A plurality of buffer springs (42), wherein the plurality of buffer springs (42) are arranged on the support frame (40) inside the outer sleeve (41), and a guide rod (43) fixed to the support frame (40) is arranged in any of the buffer springs (42); A sliding sealing block (44) is slidably arranged inside the outer sleeve (41), and has a guide groove (45) on its bottom side, wherein the guide groove (45) is slidably connected to the guide rod (43); A water trough (46) is provided in the water inlet cavity (31) and is matched and connected to the top side of the sliding sealing block (44).

6. The diesel engine fuel tank according to claim 5, characterized in that: The sliding sealing block (44) has a hemispherical top side and a cylindrical bottom side.

7. The diesel engine fuel tank according to claim 5, characterized in that: An O-shaped sealing ring (47) is provided between the outer sleeve (41) and the sliding sealing block (44).

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