CN213419253U - Measuring device suitable for gasoline engine high pressure fuel flow - Google Patents
Measuring device suitable for gasoline engine high pressure fuel flow Download PDFInfo
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- CN213419253U CN213419253U CN202021753839.XU CN202021753839U CN213419253U CN 213419253 U CN213419253 U CN 213419253U CN 202021753839 U CN202021753839 U CN 202021753839U CN 213419253 U CN213419253 U CN 213419253U
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Abstract
The utility model provides a measuring device suitable for the high-pressure fuel flow of a gasoline engine, which comprises a flow measuring unit, a shell and a cable connector, wherein the flow measuring unit and the cable connector are respectively arranged at the upper end and the upper end of the shell; the left side and the right side of the shell are respectively provided with a fuel outlet and a fuel inlet, an accommodating space is arranged in the shell, a first gear and a second gear are arranged in the accommodating space, and the first gear is meshed and matched with the second gear; install first pivot, second pivot on first gear, the second gear respectively, get into accommodation space from the fuel import when the fuel and can order about first gear, second gear rotation and then realize carrying the fuel export from the fuel import with the fuel, the utility model discloses can adapt to the application environment of the 700bar of highest oil pressure, have the advantage of accurate, the continuous fuel consumption that obtains, the practicality is strong.
Description
Technical Field
The utility model relates to a fuel measures technical field, specifically relates to a measuring device suitable for gasoline engine high pressure fuel flow.
Background
Fuel flow meters, also known as turbine flow meters, are the main type of velocity flow meters. The impeller is installed in a pipeline through which fluid flows, the impeller can rotate by the kinetic energy of the fluid when the fluid passes through the impeller, and the higher the flow velocity of the fluid is, the higher the kinetic energy is, and the higher the rotating speed of the impeller is. The fluid flow rate is determined by measuring the number of revolutions or rotational speed of the impeller.
The common fuel oil measuring device is far away from a fuel oil injector of an engine through low-pressure measurement of an oil inlet system, if leakage occurs in a pipeline, the measuring result is inaccurate, the pressure of fuel oil from a high-pressure oil pump to the fuel oil injector is highest, the flow rate is measured most accurately on the pipeline, and a flowmeter needs to be resistant to high pressure.
Patent document CN206816427U discloses a fuel nozzle flow measurement system. Including the weighing barrel that is used for splendid attire fuel and the weighing instrument who is connected with the computer, the weighing barrel outside is equipped with the backup pad, the backup pad below is equipped with two at least weighing sensor, weighing sensor is connected to weighing instrument, but this system can not realize the measurement of high-pressure fuel flow, and the structure is unreasonable.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a measuring device suitable for gasoline engine high pressure fuel flow.
The utility model provides a measuring device suitable for the high-pressure fuel flow of a gasoline engine, which comprises a flow measuring unit, a shell and a cable connector;
the lower end of the flow measuring unit is arranged at the upper end of the shell, and the cable connector is arranged at the upper end of the flow measuring unit;
a fuel outlet is formed in the left side of the shell, a fuel inlet is formed in the right side of the shell, an accommodating space is formed in the shell, a first gear and a second gear are arranged in the accommodating space, and the first gear and the second gear are in meshing matching connection;
the first gear is provided with a first rotating shaft along the axial direction, the second gear is provided with a second rotating shaft along the axial direction, the first rotating shaft and the second rotating shaft are fixedly connected with the first gear and the second gear respectively, and the first rotating shaft and the first gear as well as the second rotating shaft and the second gear can rotate relative to the shell;
when fuel enters the accommodating space from the fuel inlet, the first gear can be driven to drive the second gear to rotate or the second gear drives the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating cavity is formed between the first gear and the housing and the second gear in the rotating process, and the fuel is conveyed to the fuel outlet from the fuel inlet through the accommodating cavity.
Preferably, the exterior of the housing is of cylindrical configuration.
Preferably, the fuel outlet and the fuel inlet are respectively connected with an oil inlet pipeline and an oil outlet pipeline;
the oil inlet pipeline and the oil outlet pipeline are respectively welded on the fuel outlet and the fuel inlet.
Preferably, the flow measuring unit is screwed to the housing.
Preferably, a sealing ring is arranged between the flow measuring unit and the housing.
Preferably, the sealing ring is an O-shaped rubber ring.
Preferably, the cable connector is provided with a connector external thread, a measuring unit internal thread through hole communicated with the outside is formed in the flow measuring unit, and the connector external thread is installed in the measuring unit internal thread through hole in a matched mode.
Preferably, a sealing sleeve is arranged inside the cable connector, and the sealing sleeve is sleeved on a cable entering the flow measurement unit.
Preferably, the flow measurement unit has a rectangular parallelepiped outer shape.
The utility model provides a measuring device suitable for the high-pressure fuel flow of a gasoline engine, which comprises a flow measuring unit, a shell and a cable connector;
the lower end of the flow measuring unit is arranged at the upper end of the shell, and the cable connector is arranged at the upper end of the flow measuring unit;
a fuel outlet is formed in the left side of the shell, a fuel inlet is formed in the right side of the shell, an accommodating space is formed in the shell, a first gear and a second gear are arranged in the accommodating space, and the first gear and the second gear are in meshing matching connection;
the first gear is provided with a first rotating shaft along the axial direction, the second gear is provided with a second rotating shaft along the axial direction, the first rotating shaft and the second rotating shaft are fixedly connected with the first gear and the second gear respectively, and the first rotating shaft and the first gear as well as the second rotating shaft and the second gear can rotate relative to the shell;
when fuel enters the accommodating space from the fuel inlet, the first gear can be driven to drive the second gear to rotate or the second gear can drive the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating cavity is formed between the first gear and the housing and between the first gear and the housing during rotation of the first gear and the second gear, and the fuel is conveyed from the fuel inlet to the fuel outlet through the accommodating cavity;
the outer part of the shell is of a cylindrical structure;
the fuel outlet and the fuel inlet are respectively connected with an oil inlet pipeline and an oil outlet pipeline;
the oil inlet pipeline and the oil outlet pipeline are respectively welded on the fuel outlet and the fuel inlet;
the flow measuring unit is screwed on the shell;
a sealing ring is arranged between the flow measurement unit and the shell;
the sealing ring is an O-shaped rubber ring;
the cable connector is provided with a connector external thread, the flow measurement unit is provided with a measurement unit internal thread through hole communicated with the outside, and the connector external thread is installed in the measurement unit internal thread through hole in a matching manner;
a sealing sleeve is arranged in the cable connector and sleeved on a cable entering the flow measurement unit;
the outside of the flow measurement unit is of a cuboid structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a gear fuel oil measuring device installs between engine high-pressure oil pump and sprayer, can adapt to the application environment of the 700bar of highest oil pressure, has high developments, accuracy, obtains the advantage of fuel consumption in succession, ensures to reach the precision of requirement, and the practicality is strong.
2. The utility model discloses a chamber that holds that forms between first gear, second gear and the casing carries fuel and flow measurement unit can obtain the fuel flow through first gear, second gear pivoted number of turns, holds the cavity volume fixed, and flow measurement result is accurate, and simple structure is reasonable.
3. The utility model discloses be provided with on the face that casing and flow measurement unit are connected with O type rubber circle assorted annular groove, during O type rubber circle after the installation was embedded into annular groove, made O type rubber circle can be firm fixed and realized effectual sealed effect in the face of high-pressure fuel environment under.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic side view of the present invention;
fig. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic diagram of a high pressure fuel flow meter installed in an engine fuel system.
The figures show that:
High-pressure oil pump 8 of fuel inlet 5 of shell 2
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
The utility model provides a measuring device suitable for gasoline engine high pressure fuel flow, as shown in figure 1 and figure 2, comprising a flow measuring unit 1, a casing 2 and a cable connector 3, wherein the lower end of the flow measuring unit 1 is arranged at the upper end of the casing 2, the cable connector 3 is arranged at the upper end of the flow measuring unit 1, the left side of the casing 2 is provided with a fuel outlet 4, the right side of the casing 2 is provided with a fuel inlet 5, the inside of the casing 2 is provided with a containing space, the containing space is provided with a first gear and a second gear, the first gear is meshed and matched with the second gear, the first gear is provided with a first rotating shaft along the axial direction, the second gear is provided with a second rotating shaft along the axial direction, wherein, the first rotating shaft and the second rotating shaft are respectively and fixedly connected with the first gear and the second gear, the first rotating shaft and the first gear, and the second rotating shaft and the second gear can both rotate relative to the shell 2, when fuel enters the accommodating space from the fuel inlet 5, the first gear can be driven to drive the second gear to rotate or the second gear can drive the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating cavity is formed between the first gear and the shell 2 in the rotating process of the first gear and the second gear, and the fuel is conveyed to the fuel outlet 4 from the fuel inlet 5 through the accommodating cavity.
Specifically, as shown in fig. 1 and fig. 2, in a preferred example, the outer portion of the housing 2 is a cylindrical structure, the housing 2 is a metal housing, the outer portion of the flow rate measurement unit 1 is a rectangular parallelepiped structure, and in a variation, the outer portion of the flow rate measurement unit 1 is a cylindrical structure.
Specifically, as shown in fig. 1, fig. 2, and fig. 3, the fuel outlet 4 and the fuel inlet 5 are respectively connected to an oil inlet pipeline 6 and an oil outlet pipeline 7, and in a preferred embodiment, the oil inlet pipeline 6 and the oil outlet pipeline 7 are respectively welded to the fuel outlet 4 and the fuel inlet 5.
Specifically, as shown in fig. 1 and 2, the flow measurement unit 1 is screwed on the casing 2, and in a preferred example, the bottom of the flow measurement unit 1 is provided with a bottom cover, and the bottom cover is mounted on the top of the casing 2 through bolts.
Further, a sealing ring is arranged between the flow measurement unit 1 and the casing 2, in a preferred embodiment, the sealing ring is an O-shaped rubber ring, an annular groove matched with the O-shaped rubber ring is arranged on the surface, connected with the flow measurement unit 1, of the casing 2, and the installed O-shaped rubber ring is embedded into the annular groove, so that the O-shaped rubber ring can be firmly fixed in the environment facing high-pressure fuel oil.
Specifically, as shown in fig. 1 and fig. 2, the cable connector 3 is provided with a connector external thread, the flow measurement unit 1 is provided with a measurement unit internal thread through hole communicated with the outside, and the connector external thread is installed in the measurement unit internal thread through hole in a matching manner.
Specifically, as shown in fig. 1 and 2, a sealing sleeve is arranged inside the cable connector 3, and the sealing sleeve is sleeved on a cable entering the flow measurement unit 1, so that fluid can be effectively prevented from entering the flow measurement unit 1 through the cable connector 3.
In a specific embodiment, as shown in fig. 3, the utility model provides a measuring device installs between engine high pressure fuel pump 8 and sprayer 9, and the pipeline pressure between high pressure fuel pump 8 and the sprayer 9 is high, measures the actual fuel flow of obtaining that the fuel flow of here can be more accurate, the utility model provides a high-pressure fuel accurate measurement's problem, market prospect is good.
The working principle of the utility model is as follows:
when fuel enters the accommodating space from the fuel inlet 5, the first gear can be driven to drive the second gear to rotate or the second gear can drive the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating chamber is formed between the first gear and the housing 2 and between the second gear and the housing, during the rotation of the first and second gears, fuel is delivered from the fuel inlet 5 to the fuel outlet 4 via a receiving chamber, which has a fixed volume, denoted V, when the first gear and the second gear rotate, the first rotating shaft and the second rotating shaft rotate simultaneously, the flow measuring unit 1 obtains the rotating turns of the first gear and the second gear by detecting the rotating turns of the first rotating shaft and the second rotating shaft, the quantity of delivered fuel volume V is then obtained, for example 5V, and then for example 20V, and finally a measurement of the fuel flow is obtained.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A measuring device suitable for the high-pressure fuel flow of a gasoline engine is characterized by comprising a flow measuring unit (1), a shell (2) and a cable connector (3);
the lower end of the flow measuring unit (1) is arranged at the upper end of the shell (2), and the cable connector (3) is arranged at the upper end of the flow measuring unit (1);
a fuel outlet (4) is formed in the left side of the shell (2), a fuel inlet (5) is formed in the right side of the shell (2), an accommodating space is formed in the shell (2), a first gear and a second gear are arranged in the accommodating space, and the first gear and the second gear are in meshing matching connection;
the first gear is provided with a first rotating shaft along the axial direction, the second gear is provided with a second rotating shaft along the axial direction, the first rotating shaft and the second rotating shaft are fixedly connected with the first gear and the second gear respectively, and the first rotating shaft, the first gear, the second rotating shaft and the second gear can rotate relative to the shell (2);
when fuel enters the accommodating space from the fuel inlet (5), the first gear can be driven to drive the second gear to rotate or the second gear can drive the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating chamber is formed between the first gear and the housing (2) and between the first gear and the second gear and the housing (2) in the rotating process, and the fuel is conveyed from the fuel inlet (5) to the fuel outlet (4) through the accommodating chamber.
2. The device for measuring the high-pressure fuel flow of a gasoline engine according to claim 1, characterized in that the outer portion of the housing (2) is of a cylindrical structure.
3. The device for measuring the high-pressure fuel flow of the gasoline engine as defined in claim 1, wherein the fuel outlet (4) and the fuel inlet (5) are respectively connected with an oil inlet pipeline (6) and an oil outlet pipeline (7);
the oil inlet pipeline (6) and the oil outlet pipeline (7) are respectively welded on the fuel outlet (4) and the fuel inlet (5).
4. The device for measuring the flow of high-pressure fuel suitable for gasoline engines according to claim 1, characterized in that the flow measuring unit (1) is screwed on the casing (2).
5. The device for measuring the flow of high-pressure fuel suitable for gasoline engines as defined in claim 4, characterized in that a sealing ring is arranged between the flow measuring unit (1) and the casing (2).
6. The device for measuring the high-pressure fuel flow of the gasoline engine as claimed in claim 5, wherein the sealing ring is an O-shaped rubber ring.
7. The device for measuring the high-pressure fuel flow of the gasoline engine as defined in claim 1, wherein the cable connector (3) is provided with a connector external thread, the flow measuring unit (1) is provided with a measuring unit internal thread through hole communicated with the outside, and the connector external thread is matched and installed in the measuring unit internal thread through hole.
8. The device for measuring the high-pressure fuel flow of a gasoline engine as defined in claim 1, wherein a sealing sleeve is arranged inside the cable connector (3) and is sleeved on a cable entering the flow measuring unit (1).
9. The device for measuring the flow of high-pressure fuel for a gasoline engine according to claim 1, wherein the flow measuring unit (1) has a rectangular parallelepiped structure on the outside.
10. A measuring device suitable for the high-pressure fuel flow of a gasoline engine is characterized by comprising a flow measuring unit (1), a shell (2) and a cable connector (3);
the lower end of the flow measuring unit (1) is arranged at the upper end of the shell (2), and the cable connector (3) is arranged at the upper end of the flow measuring unit (1);
a fuel outlet (4) is formed in the left side of the shell (2), a fuel inlet (5) is formed in the right side of the shell (2), an accommodating space is formed in the shell (2), a first gear and a second gear are arranged in the accommodating space, and the first gear and the second gear are in meshing matching connection;
the first gear is provided with a first rotating shaft along the axial direction, the second gear is provided with a second rotating shaft along the axial direction, the first rotating shaft and the second rotating shaft are fixedly connected with the first gear and the second gear respectively, and the first rotating shaft, the first gear, the second rotating shaft and the second gear can rotate relative to the shell (2);
when fuel enters the accommodating space from the fuel inlet (5), the first gear can be driven to drive the second gear to rotate or the second gear drives the first gear to rotate, wherein the cross sections of the first gear and the second gear are both elliptical, an accommodating chamber is formed between the first gear and the housing (2) and between the first gear and the second gear and the housing (2) in the rotating process, and the fuel is conveyed from the fuel inlet (5) to the fuel outlet (4) through the accommodating chamber;
the outer part of the shell (2) is of a cylindrical structure;
the fuel outlet (4) and the fuel inlet (5) are respectively connected with an oil inlet pipeline (6) and an oil outlet pipeline (7);
the oil inlet pipeline (6) and the oil outlet pipeline (7) are respectively welded on the fuel outlet (4) and the fuel inlet (5);
the flow measuring unit (1) is screwed on the shell (2);
a sealing ring is arranged between the flow measurement unit (1) and the shell (2);
the sealing ring is an O-shaped rubber ring;
the cable connector (3) is provided with a connector external thread, the flow measurement unit (1) is provided with a measurement unit internal thread through hole communicated with the outside, and the connector external thread is installed in the measurement unit internal thread through hole in a matching manner;
a sealing sleeve is arranged in the cable connector (3) and sleeved on a cable entering the flow measurement unit (1);
the exterior of the flow measurement unit (1) is of a cuboid structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753839.XU CN213419253U (en) | 2020-08-20 | 2020-08-20 | Measuring device suitable for gasoline engine high pressure fuel flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753839.XU CN213419253U (en) | 2020-08-20 | 2020-08-20 | Measuring device suitable for gasoline engine high pressure fuel flow |
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| Publication Number | Publication Date |
|---|---|
| CN213419253U true CN213419253U (en) | 2021-06-11 |
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|---|---|---|---|
| CN202021753839.XU Active CN213419253U (en) | 2020-08-20 | 2020-08-20 | Measuring device suitable for gasoline engine high pressure fuel flow |
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| CN (1) | CN213419253U (en) |
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- 2020-08-20 CN CN202021753839.XU patent/CN213419253U/en active Active
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