CN218816715U

CN218816715U - Measuring mechanism for oil supply and oil pump oil injection quantity of common rail diesel engine

Info

Publication number: CN218816715U
Application number: CN202223176608.9U
Authority: CN
Inventors: 宋小明; 苟蕾
Original assignee: Shanghai Boyman Shipbuilding Technology Co ltd
Current assignee: Shanghai Boyman Shipbuilding Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-07
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to an oil pump oil spout volume measuring tool technical field specifically is a common rail diesel engine fuel feeding and oil pump oil spout volume measuring mechanism, including valve head and the spacing pipe of through connection at common rail pipe surface, but the bottom threaded connection of spacing outside of tubes surface has the high pressure fuel injection valve of oil spout, the last fixed surface of valve head installs the manometer that can observe oil hydraulic pressure force, one side fixed mounting of common rail pipe surface has fuel pressure sensor. This common rail diesel engine fuel feeding and oil pump oil spout measurement mechanism, through the valve head, cooperation setting between manometer and the control knob, constructor can control and measure what and pressure of advancing oil quantity, the reading that shows through the manometer that can be very swift is measured oil mass pressure, constructor is through rotating the control knob, be favorable to controlling into oil quantity, the valve head can be dismantled, the constructor of being convenient for is dismantling after measuring, it is comparatively convenient to install and dismantle.

Description

Measuring mechanism for oil supply and oil pump oil injection quantity of common rail diesel engine

Technical Field

The utility model relates to a measure apparatus technical field, specifically be a common rail diesel engine fuel feeding and oil pump fuel injection quantity measuring mechanism.

Background

The diesel engine has the advantages of large torque and good economic performance, the working process of the diesel engine has many same places as that of a gasoline engine, each working cycle also undergoes four strokes of air intake, compression, work application and exhaust, but because the fuel for the diesel engine is diesel oil, the viscosity of the fuel is larger than that of the gasoline and is not easy to evaporate, and the self-ignition temperature of the fuel is lower than that of the gasoline, the formation and ignition modes of combustible mixed gas are different from those of a gasoline engine, when constructors need to measure the common pressure and the fuel injection quantity of a common rail diesel engine, the measurement accuracy of the fuel injection quantity and the common pressure is not accurate enough, the control of the fuel supply quantity is insufficient, and the measurement efficiency is lower.

Chinese patent publication No. CN213598103U discloses a common rail diesel engine oil supply unit, including: the diesel oil filter comprises an oil delivery pump support, an electronic oil delivery pump, a diesel oil filter-to-oil pump oil pipe, an 18-type oil pump, an oil pump oil return pipe, a high-pressure oil pipe, a common rail pipe, a diesel oil filter support, an oil return joint, an oil return block, an oil inlet joint, a diesel oil filter-to-oil pump oil pipe, a coarse filter, a fine filter, an oil delivery pump-to-diesel oil filter pipe, and the diesel oil filter device is compact in structure; the original three-stage filtration of rough filtration and two-stage fine filtration is changed into two-stage filtration of rough filtration and fine filtration, and a fixed rough filtration link is not required to be added by a manufacturer; the integrated structure of the original electronic oil delivery pump and the coarse filter is changed into a split structure, and due to the adoption of the measures, the direct cost of the diesel engine is reduced, the economy of the diesel engine is improved, the oil consumption is reduced, but no corresponding innovation is made on the measurement of the pressure of the oil supply amount, so that constructors cannot control the oil supply amount before the common rail pipe is installed, and the measurement accuracy is lower.

In view of the above, the utility model provides a common rail diesel engine fuel feeding and oil pump fuel injection quantity measuring mechanism, constructor can effectual control the pressure of fuel feeding quantity when using, and the constructor of being convenient for is accurate controls and measures the fuel injection quantity, and the measuring precision is higher.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a common rail diesel engine fuel feeding and oil pump fuel injection quantity measuring mechanism has solved to the measurement accuracy low enough of fuel injection quantity and common pressure, and is not enough to the control of fuel injection quantity, the lower problem of measurement of efficiency.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a common rail diesel engine fuel feeding and oil pump fuel injection quantity measuring mechanism, includes valve head and the spacing pipe of through connection at the rail altogether outside of tubes surface, but the bottom threaded connection of spacing outside of tubes surface has the high pressure fuel sprayer of oil spout, the last fixed surface of valve head installs the manometer that can observe oil pressure power, one side fixed mounting of rail altogether outside of tubes surface has fuel pressure sensor, the opposite side fixed mounting of rail altogether outside of tubes surface has an over-pressure valve, the positive joint of valve head has rotatable control knob.

Optionally, the output end through connection of excess pressure valve has the defeated oil pipe of defeated oil, the one end through connection of common rail pipe has external oil pipe.

Optionally, one side of the valve head is connected with a linking pipe in a through manner, and one end of the linking pipe, which is far away from the valve head, is connected with a detachable adapter in a threaded manner.

Optionally, the lower surface through connection of adapter has the standpipe, the bottom threaded connection of standpipe surface has detachable oil pipe.

Optionally, the bottom of the outer surface of the oil delivery pipe is clamped with a detachable fastening ring, the inner wall of the fastening ring is in threaded connection with a detachable fastening bolt, and the outer surface of the fastening bolt is in threaded connection with a detachable nut.

Optionally, a detachable fastening head is connected to one side of the valve head through a thread, and one end, far away from the valve head, of the fastening head is connected to one end of the common rail pipe through a thread.

Optionally, the quantity of spacing pipe has four, four spacing pipe equidistance evenly sets up the surface of common rail pipe.

(III) advantageous effects

The utility model provides a common rail diesel engine fuel feeding and oil pump oil spout measuring mechanism possesses following beneficial effect:

1. this common rail diesel engine fuel feeding and oil pump oil spout measuring mechanism, through the valve head, the manometer, the common rail pipe, high pressure fuel injection valve, cooperation setting between fuel pressure sensor and the control knob, constructor can control and measure what of the volume of advancing oil, reading that can be very swift shows through the manometer measures the oil mass pressure, constructor passes through the rotation control knob, be favorable to controlling the volume of advancing oil, it is comparatively convenient that the installation is dismantled, constructor is to the measurement of the volume of spouting oil has been improved, constructor can install high pressure fuel injection valve in the below of common rail pipe, the constructor of being convenient for observes the volume of producing oil of high pressure fuel injection valve, fuel pressure sensor can calculate fuel pressure, the constructor of being convenient for is accurate controls the volume of spouting oil and measures, measuring precision is higher.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

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

FIG. 3 is a schematic view of a common rail structure of the present invention;

fig. 4 is a schematic view of the valve head structure of the present invention.

In the figure: 1. a valve head; 2. a common rail pipe; 3. a limiting pipe; 4. a high pressure fuel injection valve; 5. a pressure gauge; 6. a fuel pressure sensor; 7. an overpressure valve; 8. a control knob; 9. an oil delivery pipe; 10. an external oil pipe; 11. connecting the pipe; 12. an adapter; 13. a vertical tube; 14. an oil delivery pipe; 15. a fastening ring; 16. fastening a bolt; 17. a nut; 18. and (6) fastening the head.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a common rail diesel engine oil supply and oil pump injection quantity measuring mechanism includes a valve head 1 and a limiting pipe 3 connected to the outer surface of a common rail pipe 2 in a penetrating manner, the limiting pipe 3 can play a certain connecting role, and a constructor can install a high-pressure oil injection valve 4 on the outer surface of the limiting pipe 3;

referring to fig. 1, the bottom of a high-pressure fuel injection valve 4 is in threaded connection with the outer surface of a limiting pipe 3, and a fuel pressure sensor 6 is fixedly installed on the outer surface of a common rail pipe 2 and used for measuring fuel pressure and transmitting fuel pressure data;

referring to fig. 1 and 2, the number of the fastening rings 15 is two, the fastening bolt 16 penetrates through one end of one of the fastening rings 15 and is disposed on the inner wall of the other fastening ring 15, the nut 17 abuts against one side of one of the fastening rings 15, and the fastening bolt 16 is used for connecting the two fastening rings 15 and is connected through the nut 17;

referring to fig. 1 and 2, the fastening ring 15 is tightly pressed against the outer surface of the oil delivery pipe 14, so that the oil delivery pipe 14 and the standpipe 13 can be connected more tightly, and the oil delivery pipe 14 can be effectively prevented from falling off in the oil delivery process, so that oil can leak;

referring to fig. 4, by rotating the control knob 8, the control knob 8 can control the amount of oil delivered by the oil delivery pipe 14, the pressure gauge 5 fixedly mounted on the upper surface of the valve head 1 can display the pressure of the oil in the valve head 1, and a constructor can measure the pressure of the oil by reading the pressure gauge surface;

referring to fig. 3, a constructor can install the high-pressure fuel injection valve 4 at the bottom of the outer surface of the limiting pipe 3, connect the overpressure valve 7 with the external oil pipe 10, measure the fuel injection quantity of the oil pump by observing the oil injection quantity of the high-pressure fuel injection valve 4, and install the injected oil in the measuring container, so that the accuracy of measuring the fuel injection quantity of the oil pump can be improved;

referring to fig. 3 and 4, a constructor can install the fastening head 18 at one side of the valve head 1 and connect the other end of the fastening head 18 to one end of the common rail pipe 2 by screw threads, so that the connection and installation are convenient;

referring to fig. 3 and 4, the valve head 1 can be disassembled, so that the valve head can be conveniently disassembled after measurement by a constructor, the assembly and disassembly are convenient, the efficiency of the constructor in measuring the fuel injection quantity is improved, and the fuel delivery pipe 14 is arranged at the bottom of the outer surface of the vertical pipe 13, so that the constructor can quickly disassemble and assemble the fuel delivery pipe 14;

referring to fig. 1, the adapter 12 plays a certain connecting role, and can connect the connecting pipe 11 and the oil delivery pipe 14 with each other, so that the connection is convenient;

referring to fig. 1, the number of the high-pressure fuel injection valves 4 is four, and the four high-pressure fuel injection valves 4 are uniformly arranged on the outer surface of the common rail pipe 2 at equal intervals;

referring to fig. 1, the fastening bolt 16 is used for fixedly connecting the two fastening rings 15, so that the connection is convenient, a flat screwdriver is convenient for a constructor to operate, the rotation and the tightening are convenient, the fastening effect is good, and the constructor can adjust the tightness of the fastening bolt 16 according to the actual tightness;

referring to fig. 3, an observable pressure gauge 5 is fixedly mounted on the upper surface of the valve head 1, and scale marks for observing numerical values are arranged on the surface of the pressure gauge 5, so that constructors can more visually see the numerical values displayed by the pressure;

referring to fig. 1, the valve head 1 is irregular square, so that the valve head is convenient for constructors to take and use, and the fastening head 18 is round and convenient to join;

referring to fig. 1, a constructor may connect a valve head 1 with a common rail pipe 2 through a fastening head 18, so that the oil injection pressure of the common rail pipe 2 may be measured, and the constructor may detach the common rail pipe 2 after detecting the common rail pipe 2, and install the common rail pipe 2 in an area where installation is required;

referring to fig. 1, the adapter 12 is L-shaped, so that the adapter is convenient for construction personnel to rotate and mount, is convenient to connect, and has a good clamping effect;

referring to fig. 1, one end of the control knob 8 is provided with a blocking plate, the blocking plate is semicircular, and the blocking plate abuts against the inside of the valve head 1, so that a blocking effect is achieved, and oil can be prevented from flowing into the inside of the common rail pipe 2 when the valve head is not used;

referring to fig. 3, the overpressure valve 7 is connected to the external oil pipe 10, the external oil pipe 10 is connected to an external pipe, so that the throughput of oil can be tested, and the overpressure valve 7 can detect the pressure of oil.

The utility model discloses in, the device's working procedure as follows:

1. firstly, a constructor can install a high-pressure oil injection valve 4 at the bottom of the outer surface of a limiting pipe 3, connect an overpressure valve 7 with an external oil pipe 10, and measure the oil injection quantity of an oil pump by observing the oil injection quantity of the high-pressure oil injection valve 4;

2. secondly, a constructor can install the fastening head 18 at one side of the valve head 1 and connect the other end of the fastening head 18 to one end of the common rail pipe 2 in a threaded manner, so that the interior of the common rail pipe is communicated, and oil can conveniently pass through the common rail pipe;

3. then, by rotating the control knob 8, the control knob 8 can control the oil delivery amount of the oil delivery pipe 14;

4. and finally, the pressure is observed by observing the reading of the pressure gauge 5, so that the measurement of the oil hydraulic pressure is realized, and meanwhile, the observation by constructors is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a common rail diesel engine fuel feeding and oil pump fuel injection quantity measuring mechanism, includes valve head (1) and link up spacing pipe (3) of connection at common rail pipe (2) surface, its characterized in that: but the bottom threaded connection of spacing pipe (3) surface has high-pressure fuel injection valve (4) of oil spout, the last fixed surface of valve head (1) installs manometer (5) of observing oil hydraulic pressure force, one side fixed mounting of common rail pipe (2) surface has fuel pressure sensor (6), the opposite side fixed mounting of common rail pipe (2) surface has overpressure valve (7), the positive joint of valve head (1) has rotatable control knob (8).

2. The mechanism of claim 1, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine: the output end of the overpressure valve (7) is connected with an oil conveying pipe (9) capable of conveying oil in a through mode, and one end of the common rail pipe (2) is connected with an external oil pipe (10) in a through mode.

3. The mechanism of claim 1, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine: one side through connection of valve head (1) has linking pipe (11), linking pipe (11) are kept away from the one end threaded connection of valve head (1) has detachable adapter (12).

4. The mechanism of claim 3, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine: the lower surface through connection of adapter (12) has standpipe (13), the bottom threaded connection of standpipe (13) surface has detachable oil pipe (14).

5. The mechanism of claim 4, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine, and further configured to: the bottom joint of oil pipe (14) surface has detachable tighrening ring (15), the inner wall threaded connection of tighrening ring (15) has detachable fastening bolt (16), the surface threaded connection of fastening bolt (16) has detachable nut (17).

6. The mechanism of claim 1, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine: one side of the valve head (1) is in threaded connection with a detachable fastening head (18), and one end, far away from the valve head (1), of the fastening head (18) is in threaded connection with one end of the common rail pipe (2).

7. The mechanism of claim 1, wherein the mechanism is configured to measure the amount of fuel injected by the fuel supply and pump of the common rail diesel engine: the quantity of spacing pipe (3) has four, four spacing pipe (3) equidistance evenly sets up the surface of common rail pipe (2).