CN113153601B - Stabilizing device convenient for measuring oil injection quantity of oil injector - Google Patents
Stabilizing device convenient for measuring oil injection quantity of oil injector Download PDFInfo
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- CN113153601B CN113153601B CN202110499680.6A CN202110499680A CN113153601B CN 113153601 B CN113153601 B CN 113153601B CN 202110499680 A CN202110499680 A CN 202110499680A CN 113153601 B CN113153601 B CN 113153601B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
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Abstract
The invention provides a stabilizing device convenient for measuring the oil injection quantity of an oil injector, and relates to the technical field of low-speed engine fuel systems. The fuel injector adapter comprises a box body and an adapter part for assembling a fuel injector, wherein the adapter part is arranged on the box body through a base; the box body is provided with a first flow stabilizing cavity and a second flow stabilizing cavity, a communicating flow channel is arranged between the first flow stabilizing cavity and the second flow stabilizing cavity, and flow stabilizing assemblies are arranged in the two flow stabilizing cavities; the inlet end of the first flow stabilizing cavity is communicated with the adapting part through the base; the outlet end of the second flow stabilizing cavity is connected with a flow distribution area, and a flow distribution assembly is arranged in the flow distribution area; and a joint connected with a flowmeter is arranged at the outlet of the flow splitting area. The invention solves the problem that the fuel injection quantity of the fuel injector cannot be directly and accurately measured by the conventional marine low-speed engine fuel injection system.
Description
Technical Field
The invention relates to the technical field of low-speed engine fuel systems, in particular to a stabilizing device convenient for measuring the fuel injection quantity of a fuel injector.
Background
The fuel injection system is a fuel supply device which directly injects a certain amount of fuel into a cylinder or an intake passage by using an injector under a certain pressure. The fuel injection system may be classified into a gasoline injection system, a diesel injection system, a gaseous fuel injection system, and the like, depending on the kind of fuel to be injected. Among them, low-speed diesel injection systems are often used in ships. At present, low-speed engine fuel injection systems are mainly developed by foreign companies such as MAN, WinGD and mitsubishi of japan. The prior low-speed engine fuel injection systems in China are all produced by introducing patents and allowed, and almost only the machining and manufacturing of mechanical parts are carried out, so that the development and the use of the low-speed engine in China are restricted. Therefore, it is necessary to break through the independent research and development technology of the low-speed engine fuel injection system and develop the low-speed engine fuel injection system with completely independent intellectual property rights to break through the foreign monopoly of technology.
In a fuel injection system for a low speed engine, an injector is regarded as one of important parts, and attention is paid to the injector. The electronic control oil injector has the advantages of flexibly adjusting the oil injection rule and controlling the oil injection quantity, so that the electronic control oil injector is widely applied to a low-speed engine fuel injection system. However, with the increasing requirements of the nation on the marine fuel engine emission law, accurate measurement of the fuel injection quantity of the fuel injector becomes a research and development technical key point, and the existing electronic control fuel injector cannot directly and accurately measure the fuel injection quantity of the fuel injector, which is a big defect. Meanwhile, the fuel injection quantity of the low-speed engine fuel injector has the characteristics of large flow and low frequency, so that continuous and stable fuel injection flow cannot be formed, and the conventional measurement method and means cannot directly and accurately measure the fuel injection quantity.
CN 106895976A discloses a test platform of a marine low-speed engine single-cylinder electric control oil injector, which comprises an electric control oil injection module communicated with an ECU, a cooling system connected with the electric control oil injection module, an oil mass measuring mechanism connected with the cooling system, a PLC communicated with the oil mass measuring mechanism, a weighing module connected with the oil mass measuring mechanism, a servo motor communicated with the PLC, and a test bed measurement and control module; the electric control oil injection module, the PLC, the weighing module and the servo motor are respectively communicated with the test bed measurement and control module. The invention has the advantages that: the simulation rotating speed of the servo motor completely meets the rotating speed requirement of the marine low-speed machine; the fuel injection quantity of the third-party fuel injector in each cycle can be measured; the method can measure various performance parameters of the oil sprayer and provide a direction for the control strategy and the optimization coordination of the whole low-speed engine. Although the test platform opens a measurement interface for the fuel injection quantity of the third-party fuel injector, and the fuel quantity injected by the third-party fuel injector can be measured through an electronic balance or a measuring cup, the test platform still stays in a test research stage, and has a great difference with the accurate measurement of the fuel injection quantity of the actual fuel injector.
Disclosure of Invention
The invention aims to provide a stabilizing device convenient for measuring the oil injection quantity of an oil injector, and the stabilizing device is used for solving the problem that the oil injection quantity of the oil injector cannot be directly and accurately measured by the existing marine low-speed engine fuel injection system.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a stabilizing device convenient for measuring the oil injection quantity of an oil injector comprises a box body and an adapter part for assembling the oil injector, wherein the adapter part is arranged on the box body through a base;
the box body is provided with a first flow stabilizing cavity and a second flow stabilizing cavity, a communicating flow channel is arranged between the first flow stabilizing cavity and the second flow stabilizing cavity, and flow stabilizing assemblies are arranged in the two flow stabilizing cavities; the inlet end of the first flow stabilizing cavity is communicated with the adapting part through the base; the outlet end of the second flow stabilizing cavity is connected with a flow distribution area, and a flow distribution assembly is arranged in the flow distribution area; and a joint connected with a flowmeter is arranged at the outlet of the flow splitting area.
Preferably, the center of the adaptive part is provided with an assembling through hole adaptive to the oil injector, the outer side of the outlet at the lower end is provided with a buffer cover, and the side wall of the buffer cover is provided with a plurality of first oil outlet holes;
the middle of the base is provided with a communicated mounting hole for assembling the adaptive component and a first oil inlet channel, and the buffer cover is positioned in the first oil inlet channel; the first oil inlet channel is of a conical structure.
Preferably, the flow stabilizing assembly in the first flow stabilizing cavity is a first flow stabilizing assembly, a first flow stabilizing oil duct is formed in the center of the first flow stabilizing assembly, a plurality of first oil inlet holes are formed in the side wall of the first flow stabilizing oil duct, so that oil flowing into the first flow stabilizing cavity flows into the first flow stabilizing oil duct, a first support ring is sleeved on the outer side wall, close to the two ends, of the first flow stabilizing oil duct, and the first support ring can move back and forth near the two ends;
and the first supporting ring is provided with first circulating oil passages which are in mirror symmetry with each other and are communicated with the first flow stabilizing cavity.
Preferably, the first flow stabilizing cavity is further provided with a first flow dividing assembly, a first flow dividing oil passage is formed in the center of the first flow dividing assembly, the side wall of the first flow dividing oil passage is provided with a plurality of second oil inlet holes, so that oil flowing into the first flow stabilizing oil passage flows into the first flow dividing oil passage, and the outlet end of the first flow dividing oil passage is installed at the inlet end of the communicating flow passage and is communicated with the inlet end of the communicating flow passage.
Preferably, the flow stabilizing assembly in the second flow stabilizing cavity is a second flow stabilizing assembly, which is provided with a right flow stabilizing oil duct and a left flow stabilizing oil duct which are communicated with the outlet end of the communicating flow passage, and a communicating mounting hole is arranged between the right flow stabilizing oil duct and the left flow stabilizing oil duct;
A second support ring is sleeved on the outer side wall, close to the right end, of the right side flow stabilizing oil duct, and the second support ring can move back and forth near the right end;
the second support ring is provided with second circulating oil passages which are in mirror symmetry with each other and are communicated with the second flow stabilizing cavity;
and a plurality of second oil outlet holes are formed in the side wall of the left side flow stabilizing oil duct, so that oil flowing into the left side flow stabilizing oil duct flows into the second flow stabilizing cavity.
Preferably, a second shunting assembly is further disposed in the second flow stabilizing cavity, a second shunting oil passage is formed in the center of the second shunting assembly, a plurality of third oil inlet holes are formed in a side wall of the second shunting oil passage, so that oil flowing into the right flow stabilizing oil passage flows into the second shunting oil passage, and an outlet end of the second shunting oil passage is mounted in the communicating mounting hole and is communicated with the left flow stabilizing oil passage.
Preferably, the shunting region comprises a shunting mounting seat for mounting a shunting assembly and a cover plate communicated with the shunting mounting seat, and the cover plate is provided with a joint connected with the flowmeter;
and a lower end mounting through hole and an upper end shunting oil passage which are communicated with each other are formed in the center of the shunting mounting seat.
Preferably, the shunt assembly arranged in the shunt area is a third shunt assembly assembled in the lower end mounting through hole and a fourth shunt assembly arranged at the outlet end of the lower end mounting through hole;
A third shunting oil duct is formed in the middle of the third shunting assembly, a plurality of fourth oil inlet holes are formed in the side wall of the third shunting oil duct, so that oil flowing into the second flow stabilizing cavity flows into the third shunting oil duct, and the outlet end of the third shunting oil duct is communicated with the outlet end of the lower end mounting through hole;
the fourth shunting assembly comprises a shunting base and a shunting disc arranged on the shunting base;
a fourth shunting oil duct communicated with the lower end mounting through hole is formed in the center of the shunting base, and a plurality of third oil outlet holes are formed in the side wall of the shunting base, so that oil flowing into the fourth shunting oil duct flows into the upper end shunting oil duct;
a fifth oil outlet hole which is communicated with the upper end shunting oil duct and the cover plate is formed in the shunting disc;
and a fuel cavity communicated with the fifth oil outlet and a joint connected with the flowmeter is formed in the cover plate.
Preferably, the first flow stabilizing cavity comprises a right vertical cavity and a right transverse volume cavity which are communicated, and the second flow stabilizing cavity comprises a left vertical cavity and a left transverse volume cavity which are communicated;
the flow stabilizing component in the first flow stabilizing cavity is transversely arranged in the right-side transverse volume cavity, and the flow stabilizing component in the second flow stabilizing cavity is transversely arranged in the left-side transverse volume cavity;
The inlet end of the right vertical cavity is connected with the outlet end of the first oil inlet channel;
the outlet end of the left vertical cavity is communicated with a flow distribution component of the flow distribution area;
the right side transverse volume cavity is communicated with the left side transverse volume cavity through the communicating flow passage.
Preferably, the right end of the right lateral volume cavity is provided with a right end cover, and the left end of the left lateral volume cavity is provided with a left end cover;
the adapter part with between the base, the base with between the box, the horizontal volume chamber in right side with between the right-hand member lid, the horizontal volume chamber in left side with between the left end lid and the box with all be equipped with the sealing washer between the reposition of redundant personnel mount pad.
Preferably, a plug is further arranged on the left end cover.
The invention has the beneficial effects that:
1) according to the stabilizing device convenient for measuring the oil injection quantity of the oil injector, the fuel oil sprayed out of the oil injector is subjected to multistage flow stabilization and flow distribution by arranging the multistage flow stabilization assembly and the flow distribution assembly, so that the flow speed difference and the pressure difference of the fuel oil are gradually reduced, the fuel oil finally forms stable and continuous fluid, the accurate measurement of the large-flow fuel oil is realized, and the problems of large pressure fluctuation and large flow speed fluctuation caused by overlarge oil injection quantity and overlow oil injection frequency of the low-speed engine oil injector are solved;
2) Through the arrangement of the buffer cover, the fuel oil is sprayed onto the hole wall surface of the buffer cover through the fuel nozzle at the lower part of the low-speed engine fuel injector and then falls on the hole bottom, then flows out through the first oil outlet hole in the side wall of the buffer cover, and is then sprayed onto the inner side wall of the first oil inlet channel with the conical structure, so that the flow rate of the fuel oil is further reduced;
3) the first flow stabilizing assembly is provided with the plurality of first oil inlet holes in the circumferential direction, and the flowing directions of the fuel oil flowing into the two first oil inlet holes which are opposite in the radial direction are opposite, so that the flow rates of the fuel oil entering the first flow stabilizing oil passage of the first flow stabilizing assembly are mutually counteracted, the flow rate is further reduced, and the pressure fluctuation of the fuel oil is further improved after the fuel oil is fully mixed; meanwhile, through the first circulating oil duct on the first support ring, the fuel oil circularly flows in the first circulating oil duct, so that the first support ring moves back and forth left and right between the first flow stabilizing assembly and the first flow stabilizing cavity, the fuel oil on two sides of the first support ring is in a balanced state, and the stability of the first flow stabilizing component is ensured;
4) the side walls of the first and second flow dividing assemblies are provided with the plurality of second oil inlet holes and the plurality of third oil inlet holes, so that the flowing directions of fuel oil flowing into the two diametrically opposite oil inlet holes are opposite, the flow speeds of the fuel oil are further counteracted mutually, the flow speed is reduced, and the pressure fluctuation is further balanced after the fuel oil is fully mixed; meanwhile, through a second axial circulating oil duct arranged on a second support ring outside the second flow stabilizing assembly, the fuel oil circularly flows in the second circulating oil duct, so that the second support ring moves back and forth between the second flow stabilizing assembly and the second flow stabilizing cavity from side to side, the fuel oil on two sides of the second support ring is in a balanced state, and the stability of the second flow stabilizing component is ensured;
5) The flowing directions of the fuel flowing into the two diametrically opposite fuel inlet holes are opposite through the fourth fuel inlet holes of the third flow dividing assembly, and in the process that the fuel flows from bottom to top, a part of the flow velocity is converted to overcome the gravity of the fuel, then the fuel flows out through the third fuel outlet hole, and flows into the fuel channel of the cover plate through the plurality of fuel outlet holes on the flow dividing plate, the flow velocity of the fuel is further reduced again, meanwhile, the pressure fluctuation is further improved again, and the fuel flow is measured in the flowmeter through the flowmeter connector, so that the fuel injection quantity of the fuel injector is further measured stably and accurately by the flowmeter;
6) the flow stabilizing assembly and the flow dividing assembly in the stabilizing device provided by the invention have the advantages of simple structure and easiness in manufacturing, the parts are small in structure, the utilization rate of materials is improved, meanwhile, the left end cover and the right end cover are arranged, the assembly and disassembly are facilitated, and the flow stabilizing assembly and the flow dividing assembly have popularization and application values in the field of oil injection quantity measurement of low-speed oil injectors.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a buffer cover;
FIG. 3 is a schematic view of a base;
FIG. 4 is a schematic structural view of a first flow stabilizing assembly (excluding a first support ring);
FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;
FIG. 6 is a schematic structural view of a first support ring;
FIG. 7 is a schematic structural diagram of a first shunt assembly;
FIG. 8 is a schematic structural diagram of a second current stabilizing assembly;
FIG. 9 is a schematic structural diagram of a second shunt module;
FIG. 10 is a schematic view of a shunt mount;
FIG. 11 is a schematic structural view of a third shunt assembly;
FIG. 12 is a schematic structural view of a fourth shunt assembly;
FIG. 13 is a cross-sectional view taken at B-B of FIG. 12;
fig. 14 is a schematic structural view of the case.
Wherein, 1-an adaptive part, 101-an assembly through hole, 102-a buffer cover and 103-a first oil outlet;
2-a base, 201-a mounting hole, 202-a first oil inlet channel;
3-box body, 301-communicating flow channel, 302-right vertical cavity, 303-right transverse volume cavity, 304-left vertical cavity and 305-left transverse volume cavity;
4-a first flow stabilizing assembly, 401-a first flow stabilizing oil passage, 402-a first oil inlet hole, 403-a first support ring, 404-a first circulating oil passage, 405-a first step surface;
5-a first shunting assembly, 501-a first shunting oil passage, 502-a second oil inlet hole;
6-a second flow stabilizing assembly, 601-a right side flow stabilizing oil passage, 602-a left side flow stabilizing oil passage, 603-a communication mounting hole, 604-a second support ring, 605-a second circulating oil passage, 606-a second oil outlet hole and 607-a second step surface;
7-a second flow dividing assembly, 701-a second flow dividing oil passage, 702-a third oil inlet;
8-a shunt mounting seat, 801-a through hole at the lower end and 802-an upper shunt oil channel;
9-cover plate, 901-fuel chamber;
10-a third shunting assembly, 1001-a third shunting oil duct, 1002-a fourth oil inlet hole;
11-a fourth flow dividing assembly, 1101-a flow dividing base, 1102-a flow dividing disc, 1103-a fourth flow dividing oil channel, 1104-a third oil outlet hole and 1105-a fifth oil outlet hole;
12-right end cap;
13-left end cap;
14-a sealing ring;
15-plug;
16-injector, 1601-injector;
17-a linker.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure herein, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings and preferred embodiments. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, and are not intended to limit the scope of the present invention.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in FIG. 1, a stabilizing device for facilitating fuel injection quantity measurement of an oil injector comprises a box body 3 and an adapter part 1 for assembling the oil injector, wherein the adapter part 1 is arranged on the box body 3 through a base 2; the oil injector 16 is fixed in the adapter part 1 through a screw;
the box body 3 is provided with a first flow stabilizing cavity and a second flow stabilizing cavity, a communicating flow channel 301 is arranged between the first flow stabilizing cavity and the second flow stabilizing cavity, and flow stabilizing assemblies are arranged in the two flow stabilizing cavities; the inlet end of the first flow stabilizing cavity is communicated with the adapting part 1 through the base 2; the outlet end of the second flow stabilizing cavity is connected with a flow distribution area, and a flow distribution assembly is arranged in the flow distribution area; and a joint 17 connected with a flowmeter is arranged at the outlet of the shunting area. The joint of the flowmeter is connected with a flowmeter for measuring the fuel injection quantity of the fuel injector.
The fuel oil is injected into the base through the low-speed engine oil injector arranged in the adapting part and sequentially flows through the flow stabilizing assembly in the first flow stabilizing cavity, the flow stabilizing assembly in the second flow stabilizing cavity and the flow dividing assembly in the flow dividing region, and then flows out of the flow meter through the joint connected with the flow meter on the outlet end of the flow dividing region to measure the flow, the flow speed difference and the pressure difference of the fuel oil are gradually reduced through the multi-stage flow stabilizing assembly and the flow dividing assembly, so that the fuel oil finally forms stable and continuous fluid, the stable and accurate measurement of the fuel oil is realized, and the problems of large flow pressure fluctuation and large flow speed fluctuation caused by overlarge oil injection quantity and overlow oil injection frequency due to the fact that the oil injection interval of the low-speed engine oil injector is in the millisecond level are solved.
As shown in fig. 2 and fig. 3, the center of the adapter part 1 is an assembly through hole 101 adapted to the fuel injector 16, a buffer cover 102 is arranged outside the outlet at the lower end, and a plurality of first oil outlet holes 103 are formed in the side wall of the buffer cover 102;
the middle of the base 2 is provided with a communicated mounting hole 201 for assembling the adapter part 1 and a first oil inlet channel 202, and the buffer cover 102 is positioned in the first oil inlet channel 202; the first oil inlet passage 202 is of a tapered configuration.
Two rows of first radial oil outlet holes 103 which are arranged in a staggered mode are formed in the side wall of the buffer cover 102. The fuel injector 1601 of the low speed engine fuel injector is located in the surge tank 102.
When fuel is injected into the buffer cover through the fuel injection nozzle at the lower part of the low-speed engine fuel injector, the fuel is injected onto the wall surface of the hole and then falls on the bottom of the hole, when the fuel in the buffer cover reaches the height of the lower row of first fuel outlet holes, the fuel flows out of the lower row of first fuel outlet holes, and when the fuel reaches the height of the upper row of first fuel outlet holes, the fuel flows out of the lower row of first fuel outlet holes and the upper row of first fuel outlet holes simultaneously, so that the flow rate of the fuel is further reduced, and the two rows of first fuel outlet holes are arranged, so that the fuel is prevented from being accumulated in the buffer cover due to the overlarge injection amount of the fuel injector; the fuel is sprayed to the inner side wall of the first oil inlet channel with the conical structure through the lower row of the first oil outlet holes and the upper row of the first oil outlet holes, and the flow rate of the fuel is further reduced.
As shown in fig. 4 to 6, the flow stabilizing assembly in the first flow stabilizing cavity is a first flow stabilizing assembly 4, a first flow stabilizing oil passage 401 is formed in the center of the first flow stabilizing assembly 4, a plurality of first oil inlet holes 402 are formed in the side wall of the first flow stabilizing oil passage 401, so that oil flowing into the first flow stabilizing cavity flows into the first flow stabilizing oil passage 401, a first supporting ring 403 is sleeved on the outer side wall of the first flow stabilizing oil passage 401 near the two ends, and the first supporting ring 403 can move back and forth near the two ends;
the outer side wall of the first flow stabilizing assembly 4 is provided with first step surfaces 405 at positions close to the two ends, the first support rings 403 comprise two first support rings 402, one side of the outer side wall of each first support ring 402 is respectively abutted to the first step surfaces 405 at the two ends, the other side of each first support ring 402 is respectively abutted to the inner side wall of the first flow stabilizing cavity, and the two first support rings 402 can move back and forth left and right on the first step surfaces 405 and the inner side wall of the first flow stabilizing cavity;
the first supporting ring 403 is provided with first circulating oil passages 404 which are in mirror symmetry with each other and are communicated with the first flow stabilization cavity.
As shown in fig. 7, the first flow stabilizing cavity is further provided with a first flow dividing assembly 5, a first flow dividing oil passage 501 is formed in the center of the first flow dividing assembly, a plurality of second oil inlets 502 are formed in the side wall of the first flow dividing oil passage 501, so that oil flowing into the first flow stabilizing oil passage 401 flows into the first flow dividing oil passage 501, and the outlet end of the first flow dividing oil passage 501 is installed at the inlet end of the communicating flow passage 301 and is communicated with the inlet end. The outlet end of the first branch oil passage 501 is screwed to the inlet end of the communication flow passage 301.
After fuel is injected to the inner side wall of the first oil inlet channel with the conical structure and flows into the first flow stabilizing cavity, a part of the fuel flows into the first flow stabilizing oil channel through the plurality of first oil inlet holes in the first flow stabilizing assembly along the circumferential direction, and the flow directions of the fuel in the two first oil inlet holes which are opposite in the radial direction are opposite, so that the flow speeds of the fuel entering the first flow stabilizing oil channel of the first flow stabilizing assembly are mutually offset, and the flow speed is further reduced; then, the fuel oil flows into the first shunting oil passage through the second oil inlet holes, and the flowing directions of the fuel oil in the two second oil inlet holes which are opposite in the radial direction are opposite, so that the flow rates of the fuel oil entering the first shunting oil passage of the first shunting assembly are mutually offset, and the flow rate is further reduced; meanwhile, the fuel oil is fully mixed, so that the pressure fluctuation is further improved; the other part of the fuel oil flows through the first circulating oil passages on the two first supporting rings on the first flow stabilizing assembly, and the first supporting rings move back and forth left and right between the first flow stabilizing assembly and the first flow stabilizing cavity through the flowing of the fuel oil, so that the fuel oil on two sides of the first supporting rings is in a balanced state.
As shown in fig. 8, the flow stabilizing assembly in the second flow stabilizing cavity is a second flow stabilizing assembly 6, which has a right flow stabilizing oil passage 601 and a left flow stabilizing oil passage 602 communicated with the outlet end of the communicating flow passage 301, and a communicating installation hole 603 is provided between the two;
A second supporting ring 604 is sleeved on the outer side wall of the right side flow stabilizing oil duct 601 close to the right end, and the second supporting ring 604 can move back and forth near the right end;
the second support ring 604 is provided with second circulating oil passages 605 which are in mirror symmetry with each other and are communicated with the second flow stabilization cavity;
a plurality of second oil outlet holes 606 are formed in the side wall of the left side flow stabilizing oil duct 602, so that oil flowing into the left side flow stabilizing oil duct 602 flows into the second flow stabilizing cavity.
A second step surface 607 is arranged on the outer side wall of the second flow stabilizing assembly 6 close to the right end, one side of the outer side wall of the second support ring 602 is abutted against the second step surface 607, the other side is abutted against the inner side wall of the second flow stabilizing cavity, and the second support ring 602 can move back and forth left and right on the second step surface 607 and the inner side wall of the second flow stabilizing cavity;
as shown in fig. 9, a second flow dividing assembly 7 is further disposed in the second flow stabilizing cavity, a second flow dividing oil passage 701 is formed in the center of the second flow dividing assembly, a plurality of third oil inlet holes 702 are formed in the side wall of the second flow dividing oil passage 701, so that oil flowing into the right flow stabilizing oil passage 601 flows into the second flow dividing oil passage 701, and an outlet end of the second flow dividing oil passage 701 is mounted in the communicating mounting hole 603 and is communicated with the left flow stabilizing oil passage 602.
The fuel oil in the first branch oil duct flows into the right steady flow oil duct through the communicating flow passage and flows into the second branch oil duct through the third oil inlet holes, and the flowing directions of the fuel oil in the two radially opposite third oil inlet holes are opposite, so that the flow rates of the fuel oil are further counteracted, the flow rate is reduced, and then the fuel oil flows into the left steady flow oil duct through the second branch oil duct and flows into the second steady flow cavity through the second oil outlet hole; meanwhile, the fuel oil is fully mixed, so that the pressure fluctuation is further balanced; and a part of the fuel oil flowing out of the second oil outlet flows through the second circulating oil passage on the second support ring, and the second support ring moves back and forth left and right between the second flow stabilizing assembly and the second flow stabilizing cavity through the flowing of the fuel oil, so that the fuel oil on two sides of the second support ring is in a balanced state, and the effect of fixing the second flow stabilizing component can be achieved.
As shown in fig. 10, the flow splitting area includes a flow splitting installation seat 8 for installing the flow splitting assembly and a cover plate 9 communicated with the flow splitting installation seat 8, and a joint 17 connected with the flowmeter is arranged on the cover plate 9;
the center of the flow distribution mounting seat 8 is formed with a lower end mounting through hole 801 and an upper end flow distribution passage 802 that communicate.
As shown in fig. 11 to 13, the shunt assembly provided in the shunt region is the third shunt assembly 10 fitted in the lower end mounting through-hole 801 and the fourth shunt assembly 11 provided at the outlet end of the lower end mounting through-hole 801;
a third oil distributing channel 1001 is formed in the middle of the third oil distributing assembly 10, a plurality of fourth oil inlet holes 1002 are formed in the side wall of the third oil distributing channel 1001, so that oil flowing into the second flow stabilizing cavity flows into the third oil distributing channel 1001, and the outlet end of the third oil distributing channel 1001 is communicated with the outlet end of the lower end mounting through hole 801;
the fourth flow distribution assembly 11 comprises a flow distribution base 1101 and a flow distribution disc 1102 arranged on the flow distribution base 1101;
a fourth branch oil channel 1103 communicated with the lower end mounting through hole 801 is formed in the center of the flow dividing base 1101, and a plurality of third oil outlet holes 1104 are formed in the side wall of the fourth branch oil channel 1103, so that oil flowing into the fourth branch oil channel 1103 flows into the upper end flow dividing oil passage 802;
two rows of third oil outlet holes 1104 which are arranged in a staggered mode are formed in the side wall of the flow dividing base 1101, so that the flow area of fuel oil is effectively increased;
A fifth oil outlet hole 1105 communicating the upper-end branching oil passage 802 and the cover plate 9 is formed in the branching plate 1102;
the cover plate 9 has a fuel chamber 901 formed therein for communicating the fifth oil outlet hole 1105 with the joint 17 connected to the flow meter.
The fuel oil in the second flow stabilizing cavity sequentially flows into the third shunting oil duct and the fourth shunting oil duct from bottom to top through the fourth oil inlet hole, then flows out of the upper shunting oil duct through the third oil outlet hole, flows into the fuel oil cavity of the cover plate through the fifth oil outlet hole in the shunting disc, and finally flows into the flowmeter through the flow joint to measure the fuel injection quantity; meanwhile, in the process that the fuel oil moves from bottom to top, a part of flow velocity is converted to overcome the gravity of the fuel oil, the flow velocity of the fuel oil is further reduced again, meanwhile, the pressure fluctuation is further improved again, and the fuel oil is subjected to flow meter measurement through the flow meter connector, so that the stable and accurate fuel injection quantity measurement of the fuel injector by the flow meter is further improved.
As shown in FIG. 14, the first flow stabilization chamber includes a right vertical cavity 302 and a right lateral volume 303 in communication, and the second flow stabilization chamber includes a left vertical cavity 304 and a left lateral volume 305 in communication;
the flow stabilizing component in the first flow stabilizing cavity is transversely arranged in the right-side transverse volume cavity 303, and the flow stabilizing component in the second flow stabilizing cavity is transversely arranged in the left-side transverse volume cavity 305;
The inlet end of the right vertical cavity 301 is connected with the outlet end of the first oil inlet channel 202;
the right lateral volume chamber 303 and the left lateral volume chamber 305 are communicated through a communication flow passage 301;
the outlet end of the left vertical cavity 304 communicates with the flow splitting assembly of the flow splitting zone.
The side wall of the right lateral volume cavity 303 is communicated with the lower end of the right vertical cavity 302, the lower end of the left vertical cavity 304 is communicated with the side wall of the left lateral volume cavity 305, the right end of the left lateral volume cavity 305 is communicated with the left end of the communicating flow passage 301, the right end of the communicating flow passage 301 is communicated with the left end of the right lateral volume cavity 303,
a right end cover 12 is arranged at the right end of the right transverse volume cavity 303, the right end cover 12 is used for tightly pressing the first flow stabilizing assembly 4 in the right transverse volume cavity 303, a left end cover 13 is arranged at the left end of the left transverse volume cavity 305, and the left end cover 13 is used for tightly pressing the second flow stabilizing assembly 6 in the left transverse volume cavity 305;
sealing rings 14 are arranged between the adapter part 1 and the base 2, between the base 2 and the box body 3, between the right lateral volume cavity 303 and the right end cover 12, between the left lateral volume cavity 305 and the left end cover 13 and between the box body 3 and the shunt mounting seat 8.
The left end cover 13 is also provided with a plug 15.
The stabilizing device convenient for measuring the oil injection quantity of the oil injector provided by the invention has the advantages that firstly, through the arrangement of the multistage flow stabilizing assembly and the flow dividing assembly, the fuel oil sprayed out of the oil injector is subjected to multistage flow stabilization and flow division, the flow speed difference and the pressure difference of the fuel oil are gradually reduced, the fuel oil finally forms stable and continuous fluid, the stable and accurate measurement of the fuel oil is realized, and the problems of large flow pressure fluctuation and large flow speed fluctuation caused by overlarge oil injection quantity and overlow oil injection frequency of the low-speed engine oil injector are solved.
Secondly, through setting up the buffer shield, make the fuel spout through low-speed quick-witted sprayer lower part spout on the hole wall face of buffer shield and fall on the hole bottom, then flow through the first oil outlet on the buffer shield lateral wall, spout on the inside wall of the first oil inlet channel of toper structure, further reduced the fuel velocity of flow.
Then, a plurality of first oil inlets are formed in the first flow stabilizing assembly in the circumferential direction, and the flowing directions of the fuel oil flowing into two first oil inlets which are opposite in the radial direction are opposite, so that the flow rates of the fuel oil entering the first flow stabilizing oil passage of the first flow stabilizing assembly are mutually offset, the flow rate is further reduced, and the pressure fluctuation of the fuel oil is further improved after the fuel oil is fully mixed; meanwhile, through the first circulating oil duct on the first support ring, the fuel oil circularly flows in the first circulating oil duct, so that the first support ring moves back and forth left and right between the first flow stabilizing assembly and the first flow stabilizing cavity, the fuel oil on two sides of the first support ring is in a balanced state, and the stability of the first flow stabilizing assembly is ensured.
Then, a plurality of second oil inlet holes and third oil inlet holes are formed in the side walls of the first and second flow dividing assemblies, so that the flowing directions of fuel oil flowing into two radial oil inlet holes which are opposite in the radial direction are opposite, the flow speeds of the fuel oil are further counteracted, the flow speed is reduced, and the pressure fluctuation is further balanced after the fuel oil is fully mixed; meanwhile, through a second circulating oil duct arranged on a second support ring outside the second flow stabilizing assembly, fuel oil circularly flows in the second circulating oil duct, so that the second support ring moves back and forth left and right between the second flow stabilizing assembly and the second flow stabilizing cavity, the fuel oil on two sides of the second support ring is in a balanced state, and the stability of the second flow stabilizing assembly is ensured.
Finally, through a plurality of fourth inlet ports of third reposition of redundant personnel subassembly, make the flow direction that the fuel flows in two diametrically opposed inlet ports opposite, and the fuel is from the in-process that up flows down, some velocity of flow converts the gravity of overcoming self into, then flow through the third oil outlet, flow into the fuel passageway of apron through a plurality of oil outlets on the flow distribution plate again, the velocity of flow of fuel further reduces once more, and simultaneously, the pressure fluctuation has also been further improved once more, in carrying out the flowmeter through the flowmeter joint, the fuel injection quantity of the stable accurate measurement sprayer of flowmeter has further been improved.
In addition, the flow stabilizing assembly and the flow dividing assembly in the stabilizing device provided by the invention have the advantages of simple structure and easiness in manufacturing, the parts are small in structure, the utilization rate of materials is improved, meanwhile, the left end cover and the right end cover are arranged, the assembly and disassembly are facilitated, and the device has popularization and application values in the field of oil injection quantity measurement of low-speed engine oil injectors.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention.
Claims (10)
1. A stabilizing device convenient for measuring the fuel injection quantity of a fuel injector is characterized by comprising a box body (3) and an adapter part (1) for assembling the fuel injector, wherein the adapter part (1) is arranged on the box body (3) through a base (2);
the box body (3) is provided with a first flow stabilizing cavity and a second flow stabilizing cavity, a communicating flow channel (301) is arranged between the first flow stabilizing cavity and the second flow stabilizing cavity, and flow stabilizing assemblies are arranged in the two flow stabilizing cavities; the inlet end of the first flow stabilizing cavity is communicated with the adapting part (1) through the base (2); the outlet end of the second flow stabilizing cavity is connected with a flow distribution area, and a flow distribution assembly is arranged in the flow distribution area; and a joint (17) connected with a flowmeter is arranged at the outlet of the flow splitting area.
2. The stabilizing device convenient for measuring the fuel injection quantity of the fuel injector is characterized in that the center of the adapter part (1) is provided with an assembling through hole (101) adapted with the fuel injector, the outer side of the outlet at the lower end is provided with a buffer cover (102), and the side wall of the buffer cover (102) is provided with a plurality of first fuel outlet holes (103);
the middle of the base (2) is provided with a communicated mounting hole (201) for assembling the adapter part (1) and a first oil inlet channel (202), and the buffer cover (102) is positioned in the first oil inlet channel (202); the first oil inlet passage (202) is of a tapered configuration.
3. The stabilizing device for facilitating the fuel injection quantity measurement of the fuel injector according to claim 2 is characterized in that the flow stabilizing assembly in the first flow stabilizing cavity is a first flow stabilizing assembly (4), a first flow stabilizing oil passage (401) is formed in the center of the first flow stabilizing assembly, a plurality of first oil inlet holes (402) are formed in the side wall of the first flow stabilizing oil passage (401), so that oil flowing into the first flow stabilizing cavity flows into the first flow stabilizing oil passage (401), a first supporting ring (403) is sleeved on the outer side wall, close to two ends, of the first flow stabilizing oil passage (401), and the first supporting ring (403) can move back and forth near the two ends;
And the first supporting ring (403) is provided with first circulating oil passages (404) which are in mirror symmetry and communicated with the first flow stabilizing cavity.
4. The stabilizing device for facilitating the fuel injection quantity measurement of the fuel injector according to claim 3 is characterized in that a first flow dividing assembly (5) is further arranged in the first flow stabilizing cavity, a first flow dividing oil passage (501) is formed in the center of the first flow dividing assembly, a plurality of second oil inlet holes (502) are formed in the side wall of the first flow dividing oil passage (501), so that the oil flowing into the first flow stabilizing oil passage (401) flows into the first flow dividing oil passage (501), and the outlet end of the first flow dividing oil passage (501) is installed at the inlet end of the communicating flow passage (301) and is communicated with the inlet end of the communicating flow passage.
5. The stabilizing device for facilitating fuel injection quantity measurement of the fuel injector according to claim 1 is characterized in that the flow stabilizing assembly in the second flow stabilizing cavity is a second flow stabilizing assembly (6) which is provided with a right side flow stabilizing oil passage (601) and a left side flow stabilizing oil passage (602) communicated with the outlet end of the communicating flow passage (301), and a communicating installation hole (603) is formed between the right side flow stabilizing oil passage and the left side flow stabilizing oil passage;
a second supporting ring (604) is sleeved on the outer side wall, close to the right end, of the right side flow stabilizing oil duct (601), and the second supporting ring (604) can move back and forth near the right end;
A second circulating oil passage (605) which is mirror-symmetrical to each other and is communicated with the second flow stabilizing cavity is arranged on the second support ring (604);
a plurality of second oil outlet holes (606) are formed in the side wall of the left side flow stabilizing oil duct (602), so that oil flowing into the left side flow stabilizing oil duct (602) flows into the second flow stabilizing cavity.
6. The stabilizing device for facilitating the fuel injection quantity measurement of the fuel injector according to claim 5, wherein a second branch flow assembly (7) is further arranged in the second flow stabilizing cavity, a second branch oil passage (701) is formed in the center of the second branch flow assembly, a plurality of third oil inlet holes (702) are formed in the side wall of the second branch oil passage (701), so that the oil flowing into the right side steady flow oil passage (601) flows into the second branch oil passage (701), and the outlet end of the second branch oil passage (701) is installed in the communicating installation hole (603) and is communicated with the left side steady flow oil passage (602).
7. The stabilizing device for facilitating fuel injection quantity measurement of the fuel injector according to claim 2, wherein the shunting area comprises a shunting installation seat (8) for installing a shunting assembly and a cover plate (9) communicated with the shunting installation seat (8), and the cover plate (9) is provided with a joint (17) connected with the flowmeter;
The center of reposition of redundant personnel mount pad (8) is formed with lower extreme installation through-hole (801) and upper end reposition of redundant personnel oil duct (802) of intercommunication.
8. The stabilization device for facilitating fuel injection quantity measurement of a fuel injector according to claim 7, wherein the flow dividing components provided in the flow dividing region are a third flow dividing component (10) fitted in the lower end mounting through hole (801) and a fourth flow dividing component (11) provided at an outlet end of the lower end mounting through hole (801);
a third split oil channel (1001) is formed in the middle of the third split assembly (10), a plurality of fourth oil inlet holes (1002) are formed in the side wall of the third split oil channel (1001), so that oil flowing into the second flow stabilizing cavity flows into the third split oil channel (1001), and the outlet end of the third split oil channel (1001) is communicated with the outlet end of the lower end mounting through hole (801);
the fourth flow distribution assembly (11) comprises a flow distribution base (1101) and a flow distribution disc (1102) arranged on the flow distribution base (1101);
a fourth branch oil channel (1103) communicated with the lower end mounting through hole (801) is formed in the center of the branch base (1101), and a plurality of third oil outlet holes (1104) are formed in the side wall of the fourth branch oil channel (1101), so that oil flowing into the fourth branch oil channel (1103) flows into the upper end branch oil channel (802);
A fifth oil outlet hole (1105) which is communicated with the upper end shunting oil passage (802) and the cover plate (9) is formed in the shunting plate (1102);
and a fuel cavity (901) which is communicated with the fifth oil outlet hole (1105) and a joint (17) connected with the flowmeter is formed in the cover plate (9).
9. The device for facilitating fuel injector fueling measurement as set forth in claim 7, wherein the first flow stabilization chamber comprises a right vertical cavity (302) and a right lateral volume (303) in communication, and the second flow stabilization chamber comprises a left vertical cavity (304) and a left lateral volume (305) in communication;
the flow stabilizing component in the first flow stabilizing cavity is transversely arranged in the right lateral volume cavity (303), and the flow stabilizing component in the second flow stabilizing cavity is transversely arranged in the left lateral volume cavity (305);
the inlet end of the right vertical cavity (302) is connected with the outlet end of the first oil inlet channel (202);
the outlet end of the left vertical cavity (304) is communicated with a flow distribution component of a flow distribution area;
the right lateral volume cavity (303) and the left lateral volume cavity (305) are communicated through the communication flow passage (301).
10. The device for stabilizing fuel injection quantity measurement of a fuel injector according to claim 9, characterized in that a right end of the right lateral volume chamber (303) is provided with a right end cover (12), and a left end of the left lateral volume chamber (305) is provided with a left end cover (13);
the adapter is characterized in that sealing rings (14) are arranged between the adapter part (1) and the base (2), between the base (2) and the box body (3), between the right side transverse volume cavity (303) and the right end cover (12), between the left side transverse volume cavity (305) and the left end cover (13) and between the box body (3) and the shunt mounting seat (8).
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| CN202110499680.6A CN113153601B (en) | 2021-05-08 | 2021-05-08 | Stabilizing device convenient for measuring oil injection quantity of oil injector |
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| CN202110499680.6A CN113153601B (en) | 2021-05-08 | 2021-05-08 | Stabilizing device convenient for measuring oil injection quantity of oil injector |
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