CN203730188U - Fuel supply device of engine - Google Patents
Fuel supply device of engine Download PDFInfo
- Publication number
- CN203730188U CN203730188U CN201320770850.0U CN201320770850U CN203730188U CN 203730188 U CN203730188 U CN 203730188U CN 201320770850 U CN201320770850 U CN 201320770850U CN 203730188 U CN203730188 U CN 203730188U
- Authority
- CN
- China
- Prior art keywords
- fuel
- oil
- engine
- accumulator tank
- pressure
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 239000000945 filler Substances 0.000 claims description 17
- 238000007872 degassing Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 40
- 239000010705 motor oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a fuel supply device of an engine. The fuel supply device comprises a fuel gathering tank and further comprises a pressure regulating valve provided with a fuel inlet and a fuel outlet used for connecting with a fuel port of the engine. Two fuel pumps are arranged in the fuel gathering tank and provided with fuel inlets which are both connected with the fuel inlet of the pressure regulating valve. The fuel supply device of the engine has following beneficial effects: with the same characteristic curve of the two fuel pumps and the similar characteristic curve of a pipeline, a method of separately controlling the two pumps so that only one fuel pump is started when a single pump meets the requirement for flow and pressure of a system and the other fuel pump is started and the two pumps operate at the same time in the case of large flow of fuel oil and lower pressure; in this way, a problem of insufficient fuel supply pressure of the engine is resolved; pressure loss and fluctuation are avoided; and fuel supply is stopped due to a damaged single pump and the other pump still operates, thus avoiding influence of fuel cut-off upon a engine test.
Description
Technical field
The utility model relates to a kind of oil-feeding device for engine.
Background technique
In threst stand, the effect of oil-feeding device for engine provides pressure stability adjustable fuel oil for motor, mainly containing accumulator tank, oil pump and pressure regulator valve forms, oil pump is arranged in accumulator tank, the oil outlet of oil pump is connected with the filler opening of pressure regulator valve, and the oil outlet of pressure regulator valve is for being connected with the fuel port of motor, during work, oil pump flows to motor by the fuel oil in accumulator tank in the mode of high pressure oil, can regulate the pressure of supply engine fuel oil by pressure regulator valve.Traditional oil-feeding device for engine adopts single pump to carry, on the one hand, because factors such as being subject to fuel oil pump pressure, pipeline structure affects, single pump carries the charge oil pressure easily causing not enough, especially when engine oil traffic demand increases, easily produce the pressure loss and fluctuation, on the other hand, once oil-break appears in oil pump fault, affect motor and normally test.
Model utility content
The purpose of this utility model is to provide a kind of oil-feeding device for engine, in order to solve existing oil supplying device, easily produces the problem of the pressure loss and fluctuation when engine oil traffic demand increases.
The utility model adopts following technological scheme: a kind of oil-feeding device for engine, comprise accumulator tank, also comprise pressure regulator valve, pressure regulator valve has filler opening and the oil outlet for being connected with engine fuel mouth, in described accumulator tank, be provided with two oil pumps, the oil outlet of two oil pumps is all connected with the filler opening of pressure regulator valve.
The bottom of described accumulator tank is provided with suction port, is connected with for the gas for being produced by oil pump and enters the degasification pipeline in accumulator tank between this suction port and the filler opening of pressure regulator valve, on degasification pipeline, is in series with except gas control valve.
The top of described accumulator tank is provided with relief opening, connects the filtering tank for the oil gas of discharging in accumulator tank is filtered on relief opening.
On described accumulator tank, be also provided with filler opening, on filler opening, be connected with oil inlet pipe, on oil inlet pipe, be in series with oil-feed control valve and filter cleaner.
Adopt the oil supplying device of said structure, owing to adopting two oil pumps, and the oil outlet of two oil pumps is all connected with the filler opening of pressure regulator valve, being that double pump is in parallel carries, identical at two oily pump curves, in the close situation of characteristic curve of pipeline, the mode that adopts double pump separately to control, when single pump can meet the requirement of flow system flow pressure, only start an oil pump, when fuel flow large, during hypotony, start another oil pump, double pump turns round simultaneously, can solve the problem of engine oil underpressure, avoid producing the pressure loss and fluctuation simultaneously, in addition, at single pump, damage, during fuel cut-off, another pump also can work on, the impact that can avoid oil-break to cause engine test.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of the present utility model structural representation.
Embodiment
The embodiment of the utility model oil-feeding device for engine: as shown in Figure 1, comprise accumulator tank 2, oil pump 5, pressure regulator valve 7 and filtering tank 4, wherein pressure regulator valve 7 adopts fine adjustment valve, under larger incoming pressure, can obtain the regulation range of 0-0.8MPa, delivery pressure scope is large, good stability, and precision is high; Oil pump 5 is arranged in accumulator tank 2 and has two, and the oil outlet of two oil pumps 5 is all connected with the filler opening of pressure regulator valve 7, i.e. two pipeline road parallel connections that oil pump 5 oil outlets connect, and the oil outlet of pressure regulator valve 7 is for being connected with the fuel port B of motor; On the pipeline road between the fuel port B of pressure regulator valve 7 and motor, be in series with successively pressure gauge 8 and oil transportation control valve.The top of accumulator tank 2 has filler opening and relief opening, bottom have suction port, wherein filler opening is used for connecting fuel delivery mouth A, between the filler opening of fuel delivery mouth A and accumulator tank 2, be in series with successively oil-feed control valve and filter cleaner 1, in accumulator tank 2, be also provided with float switch, in order to point out the oil mass in accumulator tank 2; Between the filler opening of the suction port of accumulator tank 2 and pressure regulator valve 7, be connected with for the gas being produced by two oil pumps and enter the degasification pipeline 6 in accumulator tank with fuel oil, on degasification pipeline 6, be in series with except gas control valve, owing to increasing degasification pipeline 6, avoided pipeline road air-resistance phenomenon, avoid the oil pump heating that builds the pressure, guarantee the stable of oil pressure, improved life of equipment; Filtering tank adopts activated carbon filtration technology, and its suction port is connected with the relief opening of accumulator tank, like this can be to the oil gas oil-feed filtration treatment of discharging in accumulator tank.
When above-described embodiment is specifically used, need to complete successively the logical oil of pipeline, after pipeline exhaust and three steps of adjusting pressure, could normally use, first closing device is imported and exported each control valve, by corresponding pipeline respectively with fuel delivery mouth A, engine fuel mouth B connects, then open each control valve, start two oil pumps 5, fuel oil is full of whole system pipeline, the gas that two oil pumps 5 produce with fuel oil in degasification pipeline 6 is sent accumulator tank 2 back to, and in the fuel oil in accumulator tank 2, produce bubble and rise and to enter filtering tank, discharge after filtering, read pressure gauge 8 readings, manually adjust pressure regulator valve 7, by test requirements document, set fuel pressure, realizing engine fuel supplies with.
Claims (3)
1. an oil-feeding device for engine, comprise accumulator tank, it is characterized in that: also comprise pressure regulator valve, pressure regulator valve has filler opening and the oil outlet for being connected with engine fuel mouth, in described accumulator tank, be provided with two oil pumps, the oil outlet of two oil pumps is all connected with the filler opening of pressure regulator valve, the bottom of described accumulator tank is provided with suction port, between this suction port and the filler opening of pressure regulator valve, be connected with for the gas for being produced by oil pump and enter the degasification pipeline in accumulator tank, on degasification pipeline, be in series with except gas control valve.
2. oil-feeding device for engine according to claim 1, is characterized in that: the top of described accumulator tank is provided with relief opening, connects the filtering tank for the oil gas of discharging in accumulator tank is filtered on relief opening.
3. oil-feeding device for engine according to claim 1, is characterized in that: on described accumulator tank, be also provided with filler opening, be connected with oil inlet pipe on filler opening, be in series with oil-feed control valve and filter cleaner on oil inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770850.0U CN203730188U (en) | 2013-11-30 | 2013-11-30 | Fuel supply device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770850.0U CN203730188U (en) | 2013-11-30 | 2013-11-30 | Fuel supply device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730188U true CN203730188U (en) | 2014-07-23 |
Family
ID=51200267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320770850.0U Expired - Lifetime CN203730188U (en) | 2013-11-30 | 2013-11-30 | Fuel supply device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730188U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295423A (en) * | 2014-10-10 | 2015-01-21 | 中国神华能源股份有限公司 | Fuel pump oil supply method and system |
| CN106482955A (en) * | 2016-12-08 | 2017-03-08 | 广西玉柴机器股份有限公司 | The fuel oil constant temperature apparatus of diesel engine |
| CN106948925A (en) * | 2017-04-19 | 2017-07-14 | 郑州航空工业管理学院 | The plenum of multi gear variable speed turbine and the engine power system of dual drive disk fuel feeding |
-
2013
- 2013-11-30 CN CN201320770850.0U patent/CN203730188U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295423A (en) * | 2014-10-10 | 2015-01-21 | 中国神华能源股份有限公司 | Fuel pump oil supply method and system |
| CN104295423B (en) * | 2014-10-10 | 2017-05-03 | 中国神华能源股份有限公司 | Fuel pump oil supply method and system |
| CN106482955A (en) * | 2016-12-08 | 2017-03-08 | 广西玉柴机器股份有限公司 | The fuel oil constant temperature apparatus of diesel engine |
| CN106948925A (en) * | 2017-04-19 | 2017-07-14 | 郑州航空工业管理学院 | The plenum of multi gear variable speed turbine and the engine power system of dual drive disk fuel feeding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |