CN210127922U - Oil supply device and oil injection pump detection device comprising same - Google Patents
Oil supply device and oil injection pump detection device comprising same Download PDFInfo
- Publication number
- CN210127922U CN210127922U CN201921073797.2U CN201921073797U CN210127922U CN 210127922 U CN210127922 U CN 210127922U CN 201921073797 U CN201921073797 U CN 201921073797U CN 210127922 U CN210127922 U CN 210127922U
- Authority
- CN
- China
- Prior art keywords
- oil
- way
- oil supply
- valve
- path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an oil supply unit and contain this oil supply unit's injection pump detection device belongs to mechanical technical field. The oil supply device of the utility model combines two sets of oil supply systems of self-priming oil and forced oil supply together through the three-way ball valve, so that the oil supply device of the utility model can simultaneously have two working modes of self-priming oil and forced oil supply; the oil supply device of the utility model has simple operation, and can complete the switching between two working modes of self-priming oil supply and forced oil supply only by manually adjusting the opening and closing of the interface of the three-way ball valve connected with the oil tank; the utility model discloses an oil supply unit only has these several parts of fuel delivery pump, oil circuit, valve and oil tank, and the structure is comparatively simple, and the production and low cost of being convenient for have high application prospect in the aspect of the detection of injection pump.
Description
Technical Field
The utility model relates to an oil supply unit and contain this oil supply unit's injection pump detection device belongs to mechanical technical field.
Background
With the rapid development of economic construction in China, diesel engines are gradually being widely used due to their characteristics of high power and good economic benefits.
The working principle of the diesel engine is that the air temperature is increased by adopting a method of compressing air, so that the air temperature exceeds the self-ignition point of diesel oil, then the diesel oil is sprayed, and the diesel oil can be ignited and combusted by self while the diesel oil spray and the air are mixed. Therefore, the diesel engine does not require an ignition system and has an oil supply system.
The fuel injection pump is the fuel feeding system of the diesel engine, can convert low-pressure oil into high-pressure oil and transmit the high-pressure oil to the fuel injection nozzle, and the high-pressure diesel is sprayed out by the fuel injection nozzle, enters a cylinder combustion chamber, is mixed with air and then is ignited by self. The performance of the fuel injection pump directly determines the performance of the diesel engine, so the quality of the fuel injection pump must be strictly controlled.
At present, the fuel injection pump on the market is divided into two types, one type is the fuel injection pump with a fuel delivery pump, and the other type is the fuel injection pump without the fuel delivery pump, wherein the fuel delivery pump and the fuel injection pump need to be detected when the quality of the fuel injection pump is detected, and the fuel injection pump only needs to be detected when the quality of the fuel injection pump is detected.
The oil pump mainly detects the performance of the oil pump in a self-oil-suction state, and the oil injection pump detects the performance of the oil pump in a forced oil-suction state with certain pressure.
However, from current injection pump check out test set, the self priming of realizing great flow simultaneously and force the fuel feeding, actual design is comparatively complicated, and manufacturing cost also can increase by a wide margin, and consequently, current injection pump check out test set all separately detects injection pump and fuel delivery pump, and this greatly reduced injection pump's detection efficiency.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The to-be-solved technical problem of the utility model is to provide a can have two kinds of mode and simple structure, the production of being convenient for, low cost's oil supply unit of self priming oil and forced fuel feeding simultaneously.
[ solution ]
In order to solve the problems, the utility model provides an oil supply device, which comprises an oil transfer pump, a first oil path, a second oil path, a third oil path, a fourth oil path, a fifth oil path, a three-way ball valve and an oil tank; one end of the first oil way is positioned in the oil tank, and the other end of the first oil way is connected with an oil inlet of the oil transfer pump; one end of the second oil way is connected with one connector of the three-way ball valve, and the other end of the second oil way is connected with an oil outlet of the oil delivery pump; one end of the third oil way is positioned in the oil tank, and the other end of the third oil way is connected with the other connector of the three-way ball valve; one end of the fourth oil way is connected with the rest interface of the three-way ball valve; one end of the fifth oil way is positioned in the oil tank, and the other end of the fifth oil way is connected with the second oil way; and a first valve is arranged on the fifth oil path and used for controlling the on-off of the fifth oil path.
In an embodiment of the present invention, the first valve is a two-position two-way solenoid valve.
In one embodiment of the present invention, the device includes a sixth oil passage and a second valve.
In an embodiment of the present invention, one end of the sixth oil path is located in the oil tank, and the other end is connected to the second valve.
In an embodiment of the present invention, the second valve is located on the second oil path and between the oil delivery pump and the sixth oil path, and is used for adjusting the flow rate of the second oil path by returning oil from the sixth oil path to the oil tank.
In one embodiment of the present invention, the second valve is a regulating valve.
In one embodiment of the invention, the device comprises a third valve.
In an embodiment of the present invention, the third valve is located on the fourth oil path for adjusting a flow rate of the fourth oil path.
In an embodiment of the present invention, the third valve is a throttle valve.
In an embodiment of the present invention, an oil filter is disposed on the second oil path.
In one embodiment of the present invention, the oil filter is located between the oil feed pump and the second valve.
In an embodiment of the present invention, the first oil path and the third oil path are located at one end of the oil tank and are both provided with an oil tank filter.
The utility model discloses an in an embodiment, the tee bend ball valve is manual tee bend ball valve.
The utility model discloses an in the embodiment to the one end that the interface of fourth oil circuit and tee bend ball valve links to each other is the left end of fourth oil circuit, the right-hand member branch of fourth oil circuit is a plurality of branch's oil circuit.
In an embodiment of the present invention, the third valve is located on the branch oil path of the fourth oil path, and is used for adjusting the flow rate of the branch oil path.
In an embodiment of the present invention, the number of the branch oil passages is two.
The utility model also provides a fuel injection pump detection device, the device contains above-mentioned oil supply unit.
[ advantageous effects ]
(1) The oil supply device of the utility model combines two sets of oil supply systems of self-priming oil and forced oil supply together through the three-way ball valve, so that the oil supply device of the utility model can simultaneously have two working modes of self-priming oil and forced oil supply;
(2) the oil supply device of the utility model has simple operation, and can complete the switching between two working modes of self-priming oil supply and forced oil supply only by manually adjusting the opening and closing of the interface of the three-way ball valve connected with the oil tank;
(3) the oil supply device of the utility model only comprises the oil transfer pump, the oil circuit, the valve and the oil tank, has simple structure, convenient production and low cost, and has extremely high application prospect in the aspect of detection of the oil injection pump;
(4) use the utility model discloses a fuel feeding unit detects injection pump, especially the pump oil pump from taking the oil transfer pump, but greatly reduced injection pump's detection efficiency.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the oil supply device of the present invention.
Wherein, 1 is an oil delivery pump, 2 is a first oil path, 3 is a second oil path, 4 is a third oil path, 5 is a fourth oil path, 6 is a fifth oil path, 7 is a three-way ball valve, 8 is an oil tank, 9 is a first valve, 10 is a sixth oil path, 11 is a second valve, 12 is a third valve, 13 is an oil path filter, 14 is an oil tank filter and 15 is a branch oil path.
Detailed Description
To achieve the above objects, features and advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the oil supply device of the present invention includes an oil transfer pump 1, a first oil path 2, a second oil path 3, a third oil path 4, a fourth oil path 5, a fifth oil path 6, a three-way ball valve 7, and an oil tank 8; one end of the first oil path 2 is positioned in the oil tank 8, and the other end of the first oil path is connected with an oil inlet of the oil transfer pump 1; one end of the second oil path 3 is connected with one interface of the three-way ball valve 7, and the other end of the second oil path is connected with an oil outlet of the oil delivery pump 1; one end of the third oil path 4 is positioned in the oil tank 8, and the other end of the third oil path is connected with the other connector of the three-way ball valve 7; one end of the fourth oil path 5 is connected with the rest interface of the three-way ball valve 7; one end of the fifth oil path 6 is positioned in the oil tank 8, and the other end of the fifth oil path is connected with the second oil path 3; the fifth oil path 6 is provided with a first valve 9, and the first valve 9 is used for controlling the on-off of the fifth oil path 6.
Preferably, the first valve 9 is a two-position two-way solenoid valve.
Preferably, the device includes a sixth oil passage 10 and a second valve 11.
Preferably, one end of the sixth oil passage 10 is located in the oil tank 8, and the other end is connected to the second valve 11.
Preferably, the second valve 11 is located on the second oil passage 3 between the feed pump 1 and the sixth oil passage 10, and regulates a flow rate of the second oil passage 3 by returning oil from the sixth oil passage 10 to the tank 8.
Preferably, the second valve 11 is a regulator valve.
Preferably, the device comprises a third valve 12.
Preferably, the third valve 12 is located in the fourth oil passage 5 to regulate the flow rate of the fourth oil passage 5.
Preferably, the third valve 12 is a throttle valve.
Preferably, an oil filter 13 is provided in the second oil passage 3.
Preferably, the oil filter 13 is located between the oil feed pump 1 and the second valve 12.
Preferably, a tank filter 14 is provided at each of the first oil passage 2 and the third oil passage 4 at one end of the tank 8.
Preferably, the three-way ball valve 7 is a manual three-way ball valve.
Preferably, one end of the fourth oil path 5 connected with the interface of the three-way ball valve 7 is the left end of the fourth oil path 5, and the right end of the fourth oil path 5 is branched into a plurality of branch oil paths 15.
Preferably, the third valve 12 is located in the branch oil passage 15 of the fourth oil passage 5, and adjusts the flow rate of the branch oil passage 15.
Preferably, the number of the branch oil passages 15 is two.
The utility model discloses high pressure common rail pump multichannel oil returning device's application method as follows:
1. for supplying oil to injection pumps with oil supply pumps
When the fuel injection pump is supplied with fuel by the fuel delivery pump:
connecting a branch oil path 15 of the fourth oil path 5 to an oil inlet of an oil transfer pump to be detected, connecting an oil return port of the oil transfer pump to be detected with an oil tank 8 through the oil path, opening two interfaces of the three-way ball valve 7 respectively connected with the third oil path 4 and the fourth oil path 5, and closing the interface of the three-way ball valve 7 connected with the second oil path 3; the oil transfer pump needing to be detected is started, oil self-priming is carried out on the oil transfer pump needing to be detected from the oil tank 8 through the third oil path 4 and the fourth oil path 5, and in the process, the flow of the fourth oil path 5 can be adjusted through the third valve 12.
When supplying oil to the oil injection pump:
connecting a branch oil path 15 of the fourth oil path 5 to an oil inlet of an oil transfer pump of the oil injection pump to be detected, connecting an oil return port of the oil transfer pump of the oil injection pump to be detected with an oil tank 8 through the oil path, closing a connector of the three-way ball valve 7 connected with the third oil path 4, opening two connectors of the three-way ball valve 7 respectively connected with the second oil path 3 and the fourth oil path 5, and disconnecting the fifth oil path 6 through the first valve 9; and when the oil delivery pump 1 is started, the oil delivery pump 1 can absorb oil from the oil tank 8 and forcibly supplies the oil to the oil injection pump to be detected through the second oil path 3, the fourth oil path 5 and the oil delivery pump to be detected, and in the process, the flow of the second oil path 3 can be adjusted through returning the oil from the sixth oil path 10 to the oil tank 8, so that the oil pressure of the oil injection pump to be detected is adjusted and forcibly supplied.
When the state of supplying oil for the injection pump is switched to the state of supplying oil for the oil delivery pump of the injection pump:
the fifth oil passage 6 is communicated by the first valve 9 so that the oil in the second oil passage 3 can flow back to the oil tank 8 through the fifth oil passage 6.
2. Supplying oil to an injection pump without an oil supply pump
Connecting a branch oil path 15 of a fourth oil path 5 to an oil inlet of an oil injection pump to be detected, connecting an oil return port of the oil injection pump to be detected with an oil tank 8 through the oil path, closing a connector of a three-way ball valve 7 connected with a third oil path 4, opening two connectors of the three-way ball valve 7 respectively connected with a second oil path 3 and the fourth oil path 5, and disconnecting a fifth oil path 6 through a first valve 9; when the oil delivery pump 1 is started, the oil delivery pump 1 can suck oil from the oil tank 8 and forcibly supply the oil to the oil injection pump to be detected through the second oil path 3 and the fourth oil path 5, and in the process, the flow of the second oil path 3 can be adjusted through returning the oil from the sixth oil path 10 to the oil tank 8, so that the oil pressure of the oil injection pump to be detected is adjusted and forcibly supplied.
The protection scope of the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, and improvements that can be made by a person skilled in the art within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An oil supply device is characterized by comprising an oil transfer pump, a first oil way, a second oil way, a third oil way, a fourth oil way, a fifth oil way, a three-way ball valve and an oil tank; one end of the first oil way is positioned in the oil tank, and the other end of the first oil way is connected with an oil inlet of the oil transfer pump; one end of the second oil way is connected with one connector of the three-way ball valve, and the other end of the second oil way is connected with an oil outlet of the oil delivery pump; one end of the third oil way is positioned in the oil tank, and the other end of the third oil way is connected with the other connector of the three-way ball valve; one end of the fourth oil way is connected with the rest interface of the three-way ball valve; one end of the fifth oil way is positioned in the oil tank, and the other end of the fifth oil way is connected with the second oil way; and a first valve is arranged on the fifth oil path and used for controlling the on-off of the fifth oil path.
2. The oil supply apparatus of claim 1, wherein said apparatus includes a sixth oil passage and a second valve.
3. The oil supply apparatus of claim 2, wherein one end of the sixth oil passage is located in the oil tank, and the other end is connected to the second valve.
4. The oil supply apparatus of claim 3, wherein the second valve is provided on the second oil passage between the oil feed pump and the sixth oil passage for regulating the flow rate of the second oil passage by returning oil from the sixth oil passage to the oil tank.
5. The oil supply apparatus of any one of claims 1-4, wherein said apparatus includes a third valve.
6. The oil supply apparatus of claim 5, wherein said third valve is located in the fourth oil passage for regulating the flow rate of the fourth oil passage.
7. The oil supply apparatus according to any one of claims 1 to 4, wherein an oil filter is provided in the second oil passage.
8. The oil supply apparatus according to any one of claims 1 to 4, wherein the first oil passage and the third oil passage are provided with a tank filter at an end thereof located in the tank.
9. The oil supply device according to any one of claims 1 to 4, wherein an end of the fourth oil path connected to the port of the three-way ball valve is a left end of the fourth oil path, and a right end of the fourth oil path is branched into a plurality of branch oil paths.
10. An injection pump testing apparatus comprising an oil supply apparatus according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073797.2U CN210127922U (en) | 2019-07-10 | 2019-07-10 | Oil supply device and oil injection pump detection device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073797.2U CN210127922U (en) | 2019-07-10 | 2019-07-10 | Oil supply device and oil injection pump detection device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210127922U true CN210127922U (en) | 2020-03-06 |
Family
ID=69665051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921073797.2U Active CN210127922U (en) | 2019-07-10 | 2019-07-10 | Oil supply device and oil injection pump detection device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210127922U (en) |
-
2019
- 2019-07-10 CN CN201921073797.2U patent/CN210127922U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101925732B (en) | System and method for preventing overheating of fuel pump | |
| CA2850692C (en) | Common rail fuel injection system | |
| CN110657054A (en) | Low-high pressure oil supply system | |
| CN113202637A (en) | Liquid ammonia-diesel oil dual-fuel injection device | |
| KR20160045773A (en) | Fuel injection system and method for operating a multi-fuel piston engine | |
| CN210127922U (en) | Oil supply device and oil injection pump detection device comprising same | |
| US11225933B2 (en) | Twin outlet check liquid fuel injector for dual fuel system | |
| WO2024088008A1 (en) | Dual-fuel coordinated injection system and ship | |
| CN112211759A (en) | Gas engine detonation suppression device and suppression method thereof | |
| CN104612872A (en) | Heavy-oil high pressure common rail fuel injection system for marine low-speed diesel engine | |
| CN211058934U (en) | Low-high pressure oil supply system | |
| CN108468608B (en) | Engine fuel system | |
| CN107905880B (en) | Engine with water injection system | |
| CN210440139U (en) | Large-flow enhanced distribution volumetric common rail system | |
| CN214741676U (en) | Automobile engine fuel sprayer, in-cylinder carbon deposit cleaning system and conversion cleaning device | |
| CN219865293U (en) | Fuel supply system | |
| CN209324569U (en) | The diesel fuel supply system of V-type multi-cylinder diesel engine | |
| CN209163972U (en) | The diesel fuel supply system of in-line large scale multi-cylinder diesel engine | |
| CN111305984A (en) | In-line large multi-cylinder diesel engine diesel oil supply system for reducing pressure fluctuation | |
| CN206917778U (en) | High-pressure oil pump oil circuit, high-pressure oil pump and engine | |
| CN211737332U (en) | V-shaped multi-cylinder diesel engine diesel oil supply system capable of reducing pressure fluctuation | |
| CN217652840U (en) | Fuel oil supply system of electric control unit pump | |
| CN220036784U (en) | Engine and fuel supply system thereof | |
| CN109555627A (en) | The diesel fuel supply system of V-type multi-cylinder diesel engine | |
| CN214007375U (en) | Air intake system and gas engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |