CN213235288U - Oil pressure maintaining system of low-pressure oil way of diesel engine - Google Patents
Oil pressure maintaining system of low-pressure oil way of diesel engine Download PDFInfo
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- CN213235288U CN213235288U CN202022083001.0U CN202022083001U CN213235288U CN 213235288 U CN213235288 U CN 213235288U CN 202022083001 U CN202022083001 U CN 202022083001U CN 213235288 U CN213235288 U CN 213235288U
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Abstract
The utility model discloses a system is maintained to oil pressure of diesel engine low pressure oil circuit, the oil tank comprises an oil tank, first fuel delivery pump, first diesel oil filter, injection pump and sprayer, be equipped with the second fuel feeding unit between the low pressure oil pocket of oil tank and injection pump, second fuel feeding unit includes second diesel oil filter, the fuel solenoid valve, second fuel delivery pump, controller and pressure sensor, second diesel oil filter entry links to each other with the oil tank through the vice oil pipe of low pressure, the export of second diesel oil filter is connected to the entry of second fuel delivery pump through vice oil pipe of low pressure and fuel solenoid valve, the export of second fuel delivery pump is connected to the low pressure oil pocket of injection pump through withstand voltage oil pipe, pressure sensor locates on the pipeline of the low pressure oil pocket of injection pump, the controller is used for receiving pressure sensor's signal, and control second fuel delivery pump and fuel solenoid valve are opened when the low newspaper of oil pressure. The system can be automatically connected into the second oil supply system after the low-pressure oil circuit of the diesel engine breaks down, so that the diesel engine can be maintained without stopping, and the aim of continuous work is fulfilled.
Description
Technical Field
The utility model belongs to the diesel engine field relates to a diesel engine auxiliary assembly, concretely relates to oil pressure maintenance system of diesel engine low pressure oil circuit.
Background
Along with the continuous development of the diesel engine in China, the requirement on the performance of the diesel engine is continuously improved, under certain specific requirements, for example, when a long-distance running automobile taking diesel oil as power, an unattended generator set and the diesel engine cannot be maintained in time, the diesel engine is required to work continuously, equipment which can be maintained and maintained is not maintained until maintenance is facilitated, and the diesel engine is stopped and cannot work due to the fact that a diesel oil low-pressure oil line of the diesel engine easily breaks down, so that normal use of the vehicle or the equipment is affected. The working principle of the low-pressure oil way of the existing diesel engine is as follows: the diesel oil delivery pump continuously supplies the diesel oil of the oil tank to the diesel oil filter, clean diesel oil is sent to a low-pressure oil cavity of the oil injection pump through the diesel oil filter, and low-pressure oil (0.2-0.3 Mpa) with certain pressure exists, otherwise, a low-pressure oil way of the diesel engine breaks down, and the low-pressure oil way mainly has the reasons of low-pressure oil way blockage, leakage, damage, oil delivery pump failure, damage and the like. The oil pressure of a diesel low-pressure oil way of a diesel engine is researched more and a good result is obtained, but a re-maintaining system specially aiming at the fault application aspect of the diesel low-pressure oil way does not exist, so that a device capable of maintaining the low-pressure oil way is urgently needed, and equipment can be maintained on line.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to aim at current technique, develops a system is maintained to oil pressure of diesel engine low pressure oil circuit, and this set of system just starts immediately after diesel engine diesel oil low pressure oil circuit loses pressure, directly supplies to diesel engine diesel oil low pressure oil circuit after filtering with the diesel oil of oil tank in, makes its diesel oil pressure in the diesel engine diesel oil low pressure oil circuit of recovering rapidly to the trouble of shutting down because of the low king oil circuit of diesel engine diesel oil has been solved, thereby the fault rate of effectual reduction diesel engine. The utility model discloses oil pressure maintenance system comprises fuel delivery pump, pressure sensor, fuel solenoid valve control and controller, and is different from traditional diesel engine diesel oil supply mode, and it utilizes pressure sensor to monitor the pressure of diesel engine diesel oil low pressure oil circuit, when the diesel engine leads to the pressure of diesel engine diesel oil low pressure oil circuit to be less than 0.1MPa (for example, Cummins 6CT engine) because of faults such as fuel delivery pump and diesel oil filter stifled base; the controller is connected with the oil delivery pump and the working power supply of the fuel electromagnetic valve to enable the oil delivery pump and the fuel electromagnetic valve to work, diesel oil in the oil tank is directly sent to a low-pressure inlet of an oil injection pump of the diesel engine, oil pressure is reestablished in a diesel oil low-pressure oil way of the diesel engine, finally the diesel engine is not stopped due to the fault of the diesel oil low-pressure oil way, and the diesel engine can work uninterruptedly.
The utility model discloses a realize through following technical scheme:
the utility model provides a system is maintained to oil pressure of diesel engine low pressure oil circuit, includes oil tank, first fuel delivery pump, first diesel oil filter, injection pump and sprayer, the low pressure oil pocket of oil tank, first fuel delivery pump, first diesel oil filter and injection pump loops through low pressure fuel pipe and links to each other, link to each other its characterized in that through high pressure fuel pipe between export and the sprayer of injection pump: the oil injection pump is characterized in that a second oil supply device is arranged between the oil tank and a low-pressure oil cavity of the oil injection pump, the second oil supply device comprises a second diesel filter, a fuel oil electromagnetic valve, a second oil delivery pump, a controller and a pressure sensor, an inlet of the second diesel filter is connected with the oil tank through a low-pressure auxiliary oil pipe, an outlet of the second diesel filter is connected to an inlet of the second oil delivery pump through the low-pressure auxiliary oil pipe and the fuel oil electromagnetic valve, an outlet of the second oil delivery pump is connected to the low-pressure oil cavity of the oil injection pump through a pressure-resistant oil pipe, the pressure sensor is arranged on a pipeline communicated with the low-pressure oil cavity of the oil injection pump and used for monitoring the oil pressure of the low-pressure oil cavity of the oil injection pump, and the controller is used for receiving an oil.
Further, the pressure sensor is provided with a fuel pressure gauge with a local display function.
Further, the second oil supply device further comprises an alarm, the alarm is connected with the controller, and when the controller controls the second oil supply device to be opened, the alarm gives an alarm to prompt the cleaning of the first diesel filter and the pressure supplement of the low-pressure oil pipe.
Furthermore, the outlet of the second oil delivery pump is also provided with a fuel electromagnetic valve which is controlled to be opened and closed by a controller.
Further, an oil return port of the injector is connected to an inlet of the first diesel filter through an oil return pipe.
Further, the first diesel filter comprises a diesel oil-water separator and a diesel oil fine filter.
Compared with the prior art, the utility model have the following advantages:
the system can monitor, display and alarm the state of the diesel low-pressure oil way of the diesel engine in real time, can quickly intervene when the diesel low-pressure oil way of the diesel engine breaks down, realizes non-stop maintenance of the diesel engine when the diesel engine breaks down due to the diesel low-pressure oil way, enables equipment matched with the diesel engine to continuously and normally work, and meanwhile, maintenance personnel can quickly lock the fault point of the diesel engine through the monitoring, displaying and alarming devices and quickly recover the comprehensive performance of the diesel engine. Not only improves the working efficiency of maintenance personnel, but also reduces the economic cost.
Drawings
Fig. 1 is the structural schematic diagram of the oil pressure maintaining system of the low-pressure oil circuit of the diesel engine of the present invention.
1-a fuel tank, 2-a first fuel delivery pump, 3-a first diesel filter, 4-a fuel injection pump, 5-a fuel injector, 6-a second diesel filter, 7-a first fuel electromagnetic valve, 8-a second fuel delivery pump, 9-a second fuel electromagnetic valve, 10-a pressure-resistant fuel pipe, 11-a pressure sensor, 12-a fuel pressure gauge, 13-a controller, 14-an electric horn and 15-an oil return pipe.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The oil pressure maintaining system of the low-pressure oil way of the diesel engine comprises an oil tank 1, a first oil delivery pump 2, a first diesel filter 3, an oil injection pump 4 and an oil injector 5, wherein low-pressure oil cavities of the oil tank 1, the first oil delivery pump 2, the first diesel filter 3 and the oil injection pump 4 are sequentially connected through a low-pressure oil pipe, an outlet of the oil injection pump 4 is connected with the oil injector 5 through a high-pressure oil pipe, an oil return port of the oil injector 5 is connected to an inlet of the first diesel filter 3 through an oil return pipe 15, a second oil supply device is arranged between the low-pressure oil cavities of the oil tank 1 and the oil injection pump 4 and comprises a second diesel filter 6, a first fuel electromagnetic valve 7, a second fuel electromagnetic valve 9, a second oil delivery pump 8, a controller 13 and a pressure sensor 11, an inlet of the second diesel filter 6 is connected with the oil tank 1 through a low-pressure auxiliary oil pipe, and an outlet of the second diesel filter 6 is connected to the second oil delivery 8, the export of second fuel delivery pump 8 is connected to the low pressure oil pocket of injection pump 4 through second fuel solenoid valve 9 and withstand voltage oil pipe 10, pressure sensor 11 locates on the pipeline with the low pressure oil pocket intercommunication of injection pump 4 (the utility model discloses directly locate withstand voltage oil pipe 10 and be close to the low pressure oil pocket one end of injection pump 4) for the low pressure oil pocket oil pressure of control injection pump 4, controller 13 is used for receiving the oil pressure signal that pressure sensor 11 detected to control second fuel delivery pump 8 and two fuel solenoid valves open when the oil pressure is low to report.
In this embodiment, the pressure sensor 11 is provided with a fuel pressure gauge 12 with a local display function, and the pressure sensor 11 can display the oil pressure of the low-pressure oil chamber of the fuel injection pump 4 in a local manner besides sending a pressure signal to the controller 13 for control, so that a site operator can observe and check the oil pressure conveniently.
The second oil supply unit still includes the alarm, the alarm links to each other with controller 13, and after controller 13 control opened second oil supply unit, the alarm sent the warning, and the suggestion is carried out the clearance of first diesel fuel filter 3 and is supplemented with low pressure oil pipe pressure, in this embodiment the alarm is electric horn 14.
In a specific example, the first diesel filter 3 includes a diesel oil separator and a diesel fine filter, and the second diesel filter 6 is a diesel fine filter.
It needs to point out is for the convenience to cut out the clearance of first diesel filter 3, and according to common general knowledge, 3 imports and exports of first diesel filter all are equipped with the valve (manual and electronic all can), do not draw in this structural drawing, for basic general knowledge, the utility model discloses also not being repeated. Of course, the inlet and outlet of the first oil pump 2 may be provided with valves according to the requirement.
It should be noted that the controller 13 of the present invention can be a single chip microcomputer, and the controller 13 of the present invention sets a reset switch or a manual switch according to the general knowledge, the controller 13 only needs to control the start of the second delivery pump and the two fuel solenoid valves according to the oil pressure low-alarm signal of the pressure sensor 11 to maintain the pressure of the low-pressure oil path, but the second oil supply device does not need to be automatically stopped, and can not be logically automatically stopped, when the first diesel filter 3 is cleaned and put into use again, and when the oil pressure is detected to be normal, the second oil delivery pump 8 and the two fuel solenoid valves can be stopped by the manual switch or the reset switch, so as to cut the second oil supply device out to be kept in a standby state, the control logic can be actually adjusted according to the needs of the field, and it needs to explain that the change of the control logic does not affect the fact of the technical solution of the present, worst the utility model discloses each control logic can realize with manual intervention completely, the utility model discloses only need satisfy the start-up of second oil supply unit through controller 13 automatic control can.
The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a system is maintained to oil pressure of diesel engine low pressure oil circuit, includes oil tank, first fuel delivery pump, first diesel oil filter, injection pump and sprayer, the low pressure oil pocket of oil tank, first fuel delivery pump, first diesel oil filter and injection pump loops through low pressure fuel pipe and links to each other, link to each other its characterized in that through high pressure fuel pipe between export and the sprayer of injection pump: the oil injection pump is characterized in that a second oil supply device is arranged between the oil tank and a low-pressure oil cavity of the oil injection pump, the second oil supply device comprises a second diesel filter, a fuel oil electromagnetic valve, a second oil delivery pump, a controller and a pressure sensor, an inlet of the second diesel filter is connected with the oil tank through a low-pressure auxiliary oil pipe, an outlet of the second diesel filter is connected to an inlet of the second oil delivery pump through the low-pressure auxiliary oil pipe and the fuel oil electromagnetic valve, an outlet of the second oil delivery pump is connected to the low-pressure oil cavity of the oil injection pump through a pressure-resistant oil pipe, the pressure sensor is arranged on a pipeline communicated with the low-pressure oil cavity of the oil injection pump and used for monitoring the oil pressure of the low-pressure oil cavity of the oil injection pump, and the controller is used for receiving an oil.
2. The oil pressure maintenance system of claim 1, wherein: the pressure sensor is provided with a fuel pressure gauge with a local display function.
3. The oil pressure maintenance system of claim 1, wherein: the second oil supply device further comprises an alarm, the alarm is connected with the controller, and when the controller controls the second oil supply device to be opened, the alarm gives an alarm to prompt the cleaning of the first diesel filter and the pressure supplement of the low-pressure oil pipe.
4. The oil pressure maintenance system of claim 1, wherein: and the outlet of the second oil delivery pump is also provided with a fuel electromagnetic valve which is controlled to be opened and closed by a controller.
5. The oil pressure maintenance system according to any one of claims 1 to 4, characterized in that: and an oil return port of the oil injector is connected to an inlet of the first diesel filter through an oil return pipe.
6. The oil pressure maintenance system according to any one of claims 1 to 4, characterized in that: the first diesel filter comprises a diesel oil-water separator and a diesel oil fine filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022083001.0U CN213235288U (en) | 2020-09-22 | 2020-09-22 | Oil pressure maintaining system of low-pressure oil way of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022083001.0U CN213235288U (en) | 2020-09-22 | 2020-09-22 | Oil pressure maintaining system of low-pressure oil way of diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN213235288U true CN213235288U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022083001.0U Expired - Fee Related CN213235288U (en) | 2020-09-22 | 2020-09-22 | Oil pressure maintaining system of low-pressure oil way of diesel engine |
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| CN (1) | CN213235288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339169A (en) * | 2021-06-25 | 2021-09-03 | 一汽解放汽车有限公司 | Fuel oil filtering system and control method thereof |
| CN113503216A (en) * | 2021-08-25 | 2021-10-15 | 一汽解放汽车有限公司 | Diesel engine fuel supply system and testing method thereof |
| CN117738826A (en) * | 2024-02-19 | 2024-03-22 | 江苏中奕和创智能科技有限公司 | Diesel generator with oil control assembly |
-
2020
- 2020-09-22 CN CN202022083001.0U patent/CN213235288U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339169A (en) * | 2021-06-25 | 2021-09-03 | 一汽解放汽车有限公司 | Fuel oil filtering system and control method thereof |
| CN113503216A (en) * | 2021-08-25 | 2021-10-15 | 一汽解放汽车有限公司 | Diesel engine fuel supply system and testing method thereof |
| CN117738826A (en) * | 2024-02-19 | 2024-03-22 | 江苏中奕和创智能科技有限公司 | Diesel generator with oil control assembly |
| CN117738826B (en) * | 2024-02-19 | 2024-05-03 | 江苏中奕和创智能科技有限公司 | Diesel generator with oil control assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 Termination date: 20210922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |