CN219694253U - Oil consumption and quantity measuring device - Google Patents

Abstract

The utility model relates to a matched device for an engine test, in particular to an engine oil consumption measuring device. The engine oil consumption measuring device comprises a balance oil cup, an oil storage barrel, a weighing device and a circulating pump, wherein the bottom of the balance oil cup is communicated with the bottom of an engine oil pan, an overflow port is formed in the upper portion of the balance oil cup, a return port is formed in the upper portion of the oil storage barrel, the overflow port is communicated with the return port, an oil inlet is formed in the bottom of the balance oil cup, an oil drain port is formed in the bottom of the oil storage barrel, the oil drain port is communicated with the oil inlet through the circulating pump, the oil storage barrel is connected with the weighing device, and internal air pressures among the balance oil cup, the engine oil pan and the oil storage barrel are the same. According to the engine oil consumption measuring device, the balance oil cup is arranged, so that the liquid level is always kept at the same height in the engine oil consumption test process, the engine oil consumption can be accurately measured through the reduction amount of the engine oil in the oil storage barrel, and the accuracy of engine oil consumption measurement is improved.

Description

Oil consumption and quantity measuring device

Technical Field

The utility model relates to a matched device for an engine test, in particular to an engine oil consumption measuring device.

Background

In the test development process of an engine, the test of the oil consumption is an important test content, the oil consumption can be measured by adopting a 24-hour oil discharge method, but due to the fact that the shape of each inner cavity of a lubricating oil duct is complex, the adhesive residue effect of the engine oil and other influence factors are more, the accurate oil consumption is difficult to obtain, the error is larger, the test process is longer, the engine stop factor is more in the test process, and the test is often failed. And each time the oil consumption can only measure the fixed working condition of the engine, and cannot represent the actual oil consumption of the engine. The existing engine oil consumption measuring instrument has the problems of complex structure, high cost, short service life, difficult operation and the like because of adopting weighing type measurement, and can not meet the requirements of the domestic engine test development market.

In the prior art, a liquid level balance method is generally adopted in weighing measurement, the liquid level between the oil pan and the weighing oil can is kept level, in order to compensate for the consumption of engine oil, the weighing oil can supplement the oil to the oil pan through the oil suction pump and the oil return pump, and the stability of the oil level in the oil pan is ensured, so that the weight of the weighing oil can be reduced, and the oil consumption of engine oil can be obtained by measuring the weight of the weighing oil can. However, the liquid level of the oil pan is unstable, so that the weighing oilcan is not smooth when absorbing oil through the oil absorbing pump, and the accuracy of measuring the oil consumption of the engine oil is affected.

Disclosure of Invention

The utility model aims to at least solve the problem of inaccurate measurement of engine oil consumption. The aim is achieved by the following technical scheme:

the first aspect of the utility model provides an engine oil consumption measuring device, which comprises a balance oil cup, an oil storage barrel, a weighing device, a circulating pump and a pneumatic balance pipe;

the bottom of the balance oil cup is communicated with the bottom of the engine oil pan;

an overflow port is formed in the upper portion of the balance oil cup, a backflow port is formed in the upper portion of the oil storage barrel, the overflow port is higher than the backflow port along the gravity direction, and the overflow port is communicated with the backflow port;

an oil inlet is formed in the bottom of the balance oil cup, an oil drain port is formed in the bottom of the oil storage barrel, the oil drain port is communicated with the oil inlet through the circulating pump, and the circulating pump is used for conveying engine oil of the oil storage barrel to the balance oil cup;

the oil storage barrel is connected with the weighing device, and the weighing device is used for weighing the weight of the oil storage barrel;

the air pressure balance pipe is used for communicating the top of the balance oil cup with the top of the engine oil pan and the top of the balance oil cup with the top of the oil storage barrel respectively.

According to the engine oil consumption measuring device, the bottom of the balance oil cup is communicated with the bottom of the engine oil pan, the balance oil cup is communicated with the engine oil pan through the air pressure balance pipe, so that the air pressure of the balance oil cup is the same as that of the engine oil pan, according to the hydraulic balance principle, the liquid levels of the engine oil pan and the balance oil cup are the same, the upper part of the balance oil cup is provided with the overflow port, the overflow port is connected with the reflux port at the upper part of the oil storage barrel, when the liquid level in the balance oil cup is higher than the overflow port, engine oil flows from the overflow port to the reflux port of the oil storage barrel, and the circulating pump can convey engine oil in the oil storage barrel to the balance oil cup. The oil consumption of the engine can be known by measuring the weight of the oil storage barrel. In the measuring process of the engine oil consumption measuring device, the circulating pump continuously conveys the oil in the oil storage barrel into the balance oil cup, and as the balance oil cup is provided with the overflow port, the liquid level in the balance oil cup can be maintained in a stable state which is flush or basically flush with the overflow port, the liquid level of the engine oil pan is the same as that of the balance oil cup, and the liquid level of the balance oil cup is kept stable, so that the liquid level of the engine oil pan is also kept at the same liquid level. Through setting up balanced oil cup, the liquid level of balanced oil cup can keep on same height in the oil consumption test process, has reduced the undulant error that leads to of liquid level of engine oil drain pan, just can be comparatively accurate the consumption of measuring machine oil through the reduction of the interior machine oil of oil storage bucket, has promoted the measuring accuracy of machine oil consumption. In addition, the embodiment has simple structure and is easy to operate and set.

In addition, the engine oil consumption measuring device according to the present utility model may further have the following additional technical features:

in some embodiments of the utility model, the bottom of the balance oil cup is provided with a height adjustment assembly.

In some embodiments of the utility model, a liquid level sensing assembly is disposed inside the balance oil cup.

In some embodiments of the utility model, the oil consumption measuring device further comprises an electronic control system electrically connected with the liquid level sensing assembly, the weighing device and the circulation pump.

In some embodiments of the utility model, the overflow port communicates with the return port via a connecting line, the connecting line being provided with a one-way valve.

In some embodiments of the utility model, a visual window is provided on the balance oil cup.

In some embodiments of the utility model, the weighing device comprises a suspension wire and a load cell connected to the oil storage tank via the suspension wire.

In some embodiments of the utility model, the height adjusting assembly comprises a fixed rod and a screw rod, wherein the screw rod is connected with the oil cup, and the fixed rod is provided with an internal thread for being matched with the screw rod along the axial direction of the fixed rod.

In some embodiments of the utility model, the height adjustment assembly further comprises an adjustment handle disposed on the screw.

In some embodiments of the utility model, the circulation pump is a fixed frequency circulation pump.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 schematically shows a schematic configuration of an oil consumption measuring device according to an embodiment of the present utility model;

FIG. 2 schematically illustrates a structural schematic view of a height adjustment assembly according to an embodiment of the present utility model;

fig. 3 is a circuit diagram of the engine oil consumption measuring device.

The reference numerals are as follows:

100. an engine oil consumption measuring device; 101. an electric control system; 102. an industrial control computer;

10. an engine oil pan; 11. a first liquid level balancing port;

20. a balance oil cup; 201. a second liquid level balancing port; 202. an overflow port; 203. an oil inlet; 21. a liquid level sensing assembly; 22. a visual window;

30. an oil storage barrel; 31. a return port; 32. an oil drain port;

40. a circulation pump;

50. a weighing device; 51. a weighing sensor; 52. a hanging wire;

60. a one-way valve;

70. a bracket;

80. an air pressure balance tube; 81. a first balance pipe; 82. a second balance pipe;

90. a height adjustment assembly; 91. a screw rod; 92. a fixed rod; 93. an adjusting handle.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1 to 3, according to an embodiment of the present utility model, there is provided an oil consumption measuring apparatus 100 including a balance oil cup 20, an oil storage tank 30, a weighing device 50, a circulation pump 40 and a pneumatic balance pipe 80, wherein the bottom of the balance oil cup 20 is used to communicate with the bottom of an engine oil pan 10, an overflow port 202 is provided at the upper portion of the balance oil cup 20, a return port 31 is provided at the upper portion of the oil storage tank 30, the overflow port 202 is higher than the return port 31 in the gravity direction, and the overflow port 202 communicates with the return port 31. An oil inlet 203 is formed in the bottom of the balance oil cup 20, an oil drain port 32 is formed in the bottom of the oil storage barrel 30, the oil drain port 32 is communicated with the oil inlet 203 through a circulating pump 40, and the circulating pump 40 is used for conveying engine oil of the oil storage barrel 30 back to the balance oil cup 20. The oil storage tank 30 is connected with the weighing device 50, the weighing device 50 is used for weighing the oil storage tank 30, and the air pressure balance pipe 80 is used for communicating the top of the balance oil cup 20 with the top of the engine oil pan 10 and the top of the balance oil cup 20 with the top of the oil storage tank 30 respectively (the top, the bottom, the upper part or the lower part are all based on the gravity direction).

According to the oil consumption measuring apparatus 100 of the present utility model, the bottom of the balance oil cup 20 is used to communicate with the bottom of the engine oil pan 10, the balance oil cup 20 and the engine oil pan 10 are communicated through the air pressure balance pipe 80, so that the internal air pressures of the balance oil cup 20 and the engine oil pan 10 are the same, according to the hydraulic balance principle, the liquid level of the engine oil pan 10 and the balance oil cup 20 is the same, the upper portion of the balance oil cup 20 is provided with the overflow port 202, the overflow port 202 is connected with the return port 31 at the upper portion of the oil storage tank 30, when the liquid level in the balance oil cup 20 is higher than the overflow port 202, the oil flows from the overflow port 202 to the return port 31 of the oil storage tank 30, and the circulation pump 40 can convey the oil in the oil storage tank 30 to the balance oil cup 20. The oil consumption of the engine can be known by measuring the weight of the oil reservoir 30. During the measurement of the oil consumption measuring apparatus 100, the circulation pump 40 continuously feeds the oil in the oil reservoir 30 into the balance oil cup 20, and since the balance oil cup 20 is provided with the overflow port 202, the liquid level in the balance oil cup 20 can be maintained in a stable state flush or substantially flush with the overflow port 202, i.e., the liquid level of the engine oil pan 10 and the balance oil cup 20 is the same, and the liquid level of the balance oil cup 20 is maintained stable, the liquid level of the engine oil pan 10 is also maintained at the same liquid level. Through setting up balanced oil cup 20, the liquid level of balanced oil cup 20 can keep on same height in the oil consumption test process, has reduced the undulant error that leads to of liquid level of engine oil drain pan 10, just can comparatively accurate measurement engine oil's consumption through the reduction of the interior engine oil of oil storage bucket 30, has promoted the accuracy of engine oil consumption measurement. In addition, the embodiment has simple structure and is easy to operate and set.

It will be appreciated that the bottom of the engine oil pan 10 is provided with a first liquid level balancing port 11, the bottom of the balancing oil cup 20 is provided with a second liquid level balancing port 201, and the first liquid level balancing port 11 and the second liquid level balancing port 201 are connected by a pipeline.

It will be appreciated that the top of the engine oil pan 10 communicates with the top of the balance oil cup 20 through the first balance pipe 81, the top of the balance oil cup 20 communicates with the top of the oil storage barrel 30 through the second balance pipe 82, the first balance pipe 81 and the second balance pipe 82 together become an air pressure balance pipe 80, and the air pressure balance pipe 80 is used to ensure that the air pressure among the engine oil pan 10, the balance oil cup 20 and the oil storage barrel 30 is the same.

In some embodiments, the bottom of the balance oil cup 20 is provided with a height adjustment assembly 90. The height of the liquid level in the balance oil cup 20 is adjustable with the height of the liquid level in the engine oil pan 10 by the height adjustment assembly 90 and ensures that the liquid level in the balance oil cup 20 is slightly above the overflow port 202.

Specifically, the height adjustment assembly 90 includes a fixed rod 92 and a screw 91. The screw 91 is connected to the balance oil cup 20. The fixing rod 92 is provided with an internal thread along an axial direction thereof, the internal thread and the screw rod 91 are engaged with each other, and the height of the balance oil cup 20 can be adjusted by rotating the screw rod 91.

Specifically, in order to facilitate the user to rotate the screw 91, an adjustment handle 93 is provided on the screw 91, and the user can grasp the adjustment handle 93 to rotate the screw 91.

In some embodiments, the balance oil cup 20 is internally provided with a liquid level sensing assembly 21, the liquid level sensing assembly 21 can display the liquid level information inside the balance oil cup 20, when the liquid level sensing assembly 21 displays that the liquid level inside the balance oil cup 20 is too low, the power of the circulating pump 40 can be properly increased, the flow rate of the engine oil passing through the circulating pump 40 is increased, and the liquid level inside the balance oil cup 20 is rapidly increased.

It will be appreciated that as shown in fig. 3, the oil consumption measuring apparatus 100 further includes an electronic control system 101, and the electronic control system 101 is electrically connected to the liquid level sensing assembly 21, the weighing device 50, and the circulation pump 40. When the liquid level in the balance oil cup 20 is fed back by the liquid level sensing assembly 21 and is too low, the electronic control system 101 directly controls the circulating pump 40 to increase power, the liquid level in the balance oil cup 20 is improved, the weighing device 50 is electrically connected with the electronic control system 101, the electronic control system 101 can record the weight change of the oil storage barrel 30 in real time, and the accuracy of measuring the oil consumption of engine oil is improved.

It can be understood that the engine oil consumption measuring device 100 further includes an industrial computer 102, where the industrial computer 102 is in communication connection with the electronic control system 101, and the industrial computer 102 can feed back the straight data tube to the user, so that the efficiency of reading data by the user is improved.

In some embodiments, a check valve 60 is provided in the connection between the overflow port 202 and the return port 31, and the check valve 60 prevents the reverse flow of oil from the return port 31 back to the balance oil cup 20.

In some embodiments, a visual window 22 is provided on the circumferential sidewall of the balance oil cup 20, and the visual window 22 can facilitate the observation of the liquid level state in the balance oil cup 20 by using a straight tube of a person.

It will be appreciated that the weighing device 50 includes a suspension wire 52 and a load cell 51, the load cell 51 is suspended from the bracket 70 by a rope, the oil storage tank 30 is connected to the load cell 51 by the suspension wire 52, the oil storage tank 30 is suspended in mid-air, and when the weight of the engine oil in the oil storage tank 30 is reduced, the value of the load cell 51 is reduced.

Specifically, the load cell 51 may be an S-type digital load cell 51.

It is understood that the circulation pump 40 is a constant frequency circulation pump 40. In the present embodiment, only one set of small-flow constant-frequency circulation pump 40 is used, so that the oil level in the engine oil pan 10 and the balance cup 20 can be kept stable.

The using method of the embodiment is as follows: first, the oil consumption measuring apparatus 100 is installed, and the engine oil pan 10, the balance oil cup 20, the circulation pump 40, and the oil storage tub 30 are connected through a pipe, which may be a rubber hose.

When the oil consumption measuring apparatus 100 is first used, the balance oil cup 20 is first raised to the highest position, or the height of the overflow 202 is significantly higher than the normal oil level in the engine oil pan 10.

Next, oil is added to the engine oil pan 10, and when the oil reaches a normal level, the filling of the oil is stopped. The height adjusting assembly 90 is adjusted to gradually lower the height of the balance oil cup 20.

The oil level in the balance oil cup 20 is observed, and the height of the balance oil cup 20 is fixed when the oil level reaches the position of the overflow hole.

The engine oil is continuously filled into the engine oil pan 10, so that the engine oil overflows into the oil storage barrel 30 through the overflow port 202 of the balance oil cup 20, or the engine oil is directly filled into the oil storage barrel 30 to reach the upper limit value of weighing.

After the engine runs, the circulating pump 40 is started, after the numerical value of the weighing sensor 51 is stable, an engine oil consumption measurement test is started, the numerical value of the weighing sensor 51 is recorded in real time in the measurement test process, and the numerical value of the weighing sensor 51 is recorded after the test is finished. The difference between the values of the weighing sensors 51 before and after the test is used as the current consumption value of the engine oil.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The device for measuring the oil consumption of the engine oil is characterized by comprising a balance oil cup, an oil storage barrel, a weighing device, a circulating pump and an air pressure balance pipe;

the bottom of the balance oil cup is communicated with the bottom of the engine oil pan;

an overflow port is formed in the upper portion of the balance oil cup, a backflow port is formed in the upper portion of the oil storage barrel, the overflow port is higher than the backflow port along the gravity direction, and the overflow port is communicated with the backflow port;

an oil inlet is formed in the bottom of the balance oil cup, an oil drain port is formed in the bottom of the oil storage barrel, the oil drain port is communicated with the oil inlet through the circulating pump, and the circulating pump is used for conveying engine oil of the oil storage barrel to the balance oil cup;

the oil storage barrel is connected with the weighing device, and the weighing device is used for weighing the weight of the oil storage barrel;

the air pressure balance pipe is used for communicating the top of the balance oil cup with the top of the engine oil pan and the top of the balance oil cup with the top of the oil storage barrel respectively.

2. The oil consumption measuring apparatus according to claim 1, wherein a bottom of the balance oil cup is provided with a height adjusting assembly.

3. The oil consumption measuring apparatus according to claim 1, wherein a liquid level sensing assembly is provided inside the balance oil cup.

4. The oil consumption measuring device of claim 3, further comprising an electronic control system electrically connected to the level sensing assembly, the weighing device, and the circulation pump.

5. The engine oil consumption measuring apparatus according to claim 1, wherein the overflow port communicates with the return port through a connecting pipe provided with a check valve.

6. The engine oil consumption measuring apparatus according to claim 1, wherein a visual window is provided on the balance oil cup.

7. The oil consumption measuring apparatus according to claim 1, wherein the weighing device includes a suspension wire and a load cell connected to the oil storage tub through the suspension wire.

8. The engine oil consumption measuring device according to claim 2, wherein the height adjusting assembly comprises a fixing rod and a screw rod, the screw rod is connected with the balance oil cup, and the fixing rod is provided with an internal thread along the axial direction of the fixing rod for being matched with the screw rod.

9. The oil consumption measuring apparatus of claim 8, wherein the height adjustment assembly further comprises an adjustment handle disposed on the lead screw.

10. The engine oil consumption measuring apparatus according to claim 1, wherein the circulation pump is a constant-frequency circulation pump.