CN205206901U - Oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine - Google Patents
Oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine Download PDFInfo
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- CN205206901U CN205206901U CN201520900153.1U CN201520900153U CN205206901U CN 205206901 U CN205206901 U CN 205206901U CN 201520900153 U CN201520900153 U CN 201520900153U CN 205206901 U CN205206901 U CN 205206901U
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Abstract
An object of the utility model is to provide an oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine, including cylinder oil tank, petroleum pump, high -pressure oil pump, rail pipe altogether, the rail pipe is including ring form rail altogether, and two circular -arc links to each other through straight tubes between the rail altogether, and every straight tube all links to each other with the cylinder oil tank through two oil pipe, sets up the rail on the straight tube and presses the sensor, and the ring form is total to and is connected with the oiling control valve on the rail, the oiling control valve includes the casing and installs armature, spring and the quiet iron core in the casing, and the inner wall at the casing both ends is fixed respectively to spring and quiet iron core, and armature is located and links to each other between spring and the quiet iron core and with the spring, and wound wire circle on the quiet iron core sets up oil inlet and oil -out respectively on the casing, the pump nozzle of oil -out link bit in the cylinder. The utility model discloses the oiling process does not receive the influence of high -pressure cylinder oil production process, can realize oiling pressure, injection flow, oiling more accurate control in right time to improve the cylinder lubrication effect, save cylinder oil consumption.
Description
Technical field
The utility model relates to a kind of diesel engine, specifically the cylinder lubricating system of boat diesel engine.
Background technique
Large-sized low-speed two-stroke boat diesel engine many employings cross-head type structure, diaphragm is offered in cylinder bottom, like this cylinder and crankcase volume are separated in order to avoid dirty oil, the crankcase that bleeds such as cigarette ash and combustion gas in cylinder, the lubricating oil of stained crankcase bottom, this is very important concerning the diesel engine of combusting heavy oil.Such structural feature determines its cylinder lubrication must adopt Cylinder lubricating lubrication system.
Tradition mechanical type Cylinder lubricating lubrication system all carrys out oiling by camshaft actuated mechanical lubricator, push small plunger by cam to move reciprocatingly, its pump oil frequency is synchronous with diesel engine speed, the size of oil filling amount and engine speed be changing into linear relationship, its oil filling amount regulates the main plunger stroke of each oiling junior unit of manual tune that relies on to realize.This system has obvious shortcoming: fill cup hydraulic is low, and timing is extensive and can not change with the load variations of diesel engine, not only wastes cylinder oil, increases operating cost, too increases the pollution of environment and the workload of sump oil process and expense; Also cause piston-top surface, gas port, outlet valve place carbon deposit simultaneously, cause the adhesion of piston ring, outlet valve, air-flow path smooth, unnecessary cylinder oil enters piston lower portion and causes scavenging box fire.
For improving diesel engine ride quality, reduce lubrication oil consumption and pollutant emission, many companies and research unit have all carried out the research of Cylinder lubricating lubrication system of new generation both at home and abroad.
SIP (SwirlInjectionPrinciple---whirlpool spraying principle) the oil gun system that this Jensen Cylinder lubricating system house of Denmark's Chinese releases, by being installed on oblique nozzle pin hole on the SIP valve in cylinder by lubricant oil high-pressure atomization, direct brute force is ejected into region on cylinder liner inwall, forms mist of oil and drips cloud.Oil droplet cloud carries out eddy-currents flowing with the vortex action of scavenging gas in cylinder, under centrifugal action, even diffusion profile is on the sheet surface of cylinder wall, thus before piston ring is by up process, in upper half part annular region of cylinder wall, form the diffusion mist of oil film of the uniformly continous of the thin layer relative with each nozzle, realize ideal cylinder lubrication condition.
Wa Xilan company of Finland develops pulse lubrication system PLS (PulseLubricatingSystem), operation power of its lubrication modular unit from the high pressure servo oil in reduction valve post-decompression servo oil common rail system, by being embedded in the lubricant oil pressurizeed to cylinder wall surface vectored injection around the lubricant oil oiling device in cylinder wall peripheral direction nearly in 6 ~ 8 simple sequence oil grooves.The nozzle head of each oil gun has multiple nozzle opening, with the pulse mode of bull jet from the nozzle opening directed oil of the breakout locations jet lubrication to cylinder wall surface separately.Achieve and oil filling amount, fill cup hydraulic and oiling smart electronics is regularly controlled, under the prerequisite meeting diesel engine piston kinetic characteristic, decrease lubrication oil consumption, improve the Economy that diesel engine runs.
Graceful benefactor department of Germany develops Alpha's intelligence cylinder lubricating system, i.e. AlphaACC (AlphaAdaptiveCylinderoilControl), the hydraulic power supply unit (HPS) be made up of multiple stage oil pump provides the driving force of common rail kinetic servo oil as Alpha oil gun of 20MPa, automatic control mode is adopted to become sector shape to spray into cylinder wall cylinder oil at regular time and quantity, can realize cylinder oil oil filling amount and fuel oil sulphur content matches, and cylinder oil oil filling amount and diesel load match.Actual use proves, use Alpha oil gun system, have obvious decline than traditional mechanical lubricator cylinder oil consumption, the wearing and tearing of cylinder liner also significantly reduce.
Domestic Wuhan University of Technology proposes a kind of machinery and automatically controlled modular cylinder lubrication system, this system is made up of parts such as pump nozzle, mechanical type oil gun, electric-controlled type oil gun, control units, by the oil circuit of mechanical type oil gun and electric-controlled type oil gun is in parallel, and on the pitman arm shaft of mechanical type oil gun, add the axle upender controlled by control unit.Like this, when electric-controlled type oil gun breaks down, control unit just cuts off electric-controlled type oil gun, and makes Control Shaft rotary movement, is continued to Cylinder lubricating by mechanical type oil gun.Its advantage is the feature that can obtain electric-controlled type oil gun high lubricating effect, suitably can utilize again the resource of original mechanical type oil gun, improve the reliability of lubrication.
Above four kinds of Cylinder lubricating lubrication systems, although compare traditional mechanical type cylinder lubricating system have very much progress, but still have narrow limitation, this is mainly manifested in them and all adopts plunger-type structure to be then ejected in cylinder that (the automatically controlled injection system of SIP injection system and Wuhan science and engineering all adopts cam mechanism drive plunger to cylinder oil pressurization; PLS injection system and AlphaACC injection system adopt high pressure servo oil drive plunger), namely the production process of high pressure cylinder oil and oiling process are coupled, and this causes reducing the control accuracy of fill cup hydraulic, and system response time is slack-off.
Summary of the invention
The purpose of this utility model is to provide oiling process not by the impact of high pressure cylinder oil production process, fill cup hydraulic can be realized, oil filling amount, oiling timing control more accurately, thus improve cylinder lubrication effect, save a kind of boat diesel engine electric-control common-rail type Cylinder lubricating lubrication system that cylinder oil consumes.
The purpose of this utility model is achieved in that
A kind of boat diesel engine electric-control common-rail type of the utility model Cylinder lubricating lubrication system, it is characterized in that: comprise cylinder fuel tank, oil transfer pump, high pressure oil pump, common rail pipe, control valve, described common rail pipe comprises circular common rail, be connected by straight tube between two arc-shaped common rails, each straight tube is all connected with cylinder fuel tank by two oil pipes, described two oil pipes one of them filter cleaner is set, oil transfer pump, high pressure oil pump, in described two oil pipes, another oil pipe and straight tube connecting place arrange pressure limiting valve, high pressure oil pump arranges pressure controlled valve, straight tube arranges rail pressure sensor, circular common rail is connected with oiling control valve, described oiling control valve comprises housing and is arranged on the armature in housing, spring and static iron core, spring and static iron core are separately fixed at the inwall at housing two ends, armature is between spring and static iron core and be connected with spring, winding around on static iron core, housing arranges filler opening and oil outlet respectively, oil outlet is positioned on the stroke of armature, during coil electricity, armature moves to coil and oil outlet is opened, during coil blackout, armature under the action of the spring dorsad coil move oil outlet closed, oil outlet connects the pump nozzle be positioned in cylinder, control valve connects oiling control valve respectively by signaling line, rail pressure sensor and pressure controlled valve.
The utility model can also comprise:
1, described circular common rail comprises the arc tube of more than two sections, arc tube two ends arrange the first flange and the second flange respectively, first flange has seal groove, and adjacent circular arc pipe is connected with the second flange of another arc tube by the first flange of one of them arc tube.
2, each common rail pipe corresponding diesel engine cylinder, each cylinder is installed the pump nozzle of more than three, and the corresponding oiling control valve of each pump nozzle, is provided with the one-way valve preventing cylinder interior gas from entering pump nozzle inside in pump nozzle.
Advantage of the present utility model is: the production process of high pressure cylinder oil is separated completely with oiling process, makes oiling process not by the impact of high pressure cylinder oil production process; Realized the start and stop of oiling by the opening and closing of high speed oiling control valve, make the speed of response of system faster; The dynamic adjustments of cylinder oil common rail pressure can be realized by pressure controlled valve and rail pressure sensor, thus regulate fill cup hydraulic flexibly; Oil filling amount depends on the time that fill cup hydraulic and oiling control valve are opened completely, makes the control of oil filling amount more accurate; Common rail around each cylinder with circular layout, make each pump nozzle of being evenly arranged on cylinder equal to the distance of common rail, thus make the lubrication of cylinder more even, this arrangement also makes the high-pressure oil pipe between pump nozzle and common rail very short, also improves the speed of response of system.In addition, common rail pipe adopt multi-segment structure, processing and easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model flange one schematic diagram;
Fig. 3 is the utility model flange two schematic diagram;
Fig. 4 is the utility model oiling control valve schematic diagram.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 4, the utility model mainly comprises cylinder fuel tank 1, filter cleaner 2, oil transfer pump 3, high pressure oil pump 4, pressure controlled valve 5, common rail pipe 6, oiling control valve 7, pump nozzle 8, rail pressure sensor 9, pressure limiting valve 10, controller 11, signaling line 12, oil pipe 13.
Common rail pipe is segmentation structure, a circular common rail is installed around each cylinder of diesel engine, and circular common rail is made up of multi-section circular arc pipe, is connected by straight tube between each circular common rail, each section of end is equipped with flange one or flange two, and by Bolt Connection together.
Flange one has seal groove, by with flange two coordinate the sealing realized between each section of common rail pipe.
The each cylinder of diesel engine evenly installs multiple pump nozzle, is provided with one-way valve in pump nozzle, can prevents the gas in cylinder from entering in oil filling pipeline.The corresponding oiling control valve of each pump nozzle.
Oiling control valve comprises the parts such as filler opening, housing, armature, static iron core, coil, spring and oil outlet.Its filler opening is often opened, and when the coil is energized, oil outlet is opened, and during coil blackout, oil outlet is closed.
Oil transfer pump 3 can adopt outer gearing formula gear pump, by camshaft actuated.
High pressure oil pump 4 can adopt and be similar to Japan electric coating company HP0 type high pressure oil pump structure, equally by camshaft actuated.
Common rail pipe 6 is made up of ring tube part and straight-tube portion, and the corresponding cylinder of diesel engine of each ring tube part, connects with straight-tube portion between adjacent rings tubular portion, only give situation during two cylinders in Fig. 1.And ring tube part can be made up of multi-section circular arc according to actual conditions, in Fig. 1, only give the form of two sections of circular arcs.All there are flange 1 or flange 2 15 in common rail pipe each section of end, flange one has seal groove 16, by realizing sealing with coordinating of flange two.
Oiling control valve 7 comprises the compositions such as filler opening 17, housing 18, armature 19, static iron core 20, coil 21, spring 22 and oil outlet 23.Composition graphs 4, when the coil is energized, armature moves right under electromagnetic force, and oil outlet is opened; When the coil is de-energized, electromagnetic force disappears, and armature under spring force, overcomes cylinder oil pressure, is moved to the left, and oil outlet is closed.
Can install as required around each cylinder of diesel engine in the oiling control valve 7, Fig. 1 of multiple pump nozzle 8 and correspondence and only depict a pump nozzle and oiling control valve.Be provided with one-way valve in pump nozzle, the pressurized gas in cylinder can be stoped to enter oil filling pipeline.
In the course of the work, cylinder oil pumps from cylinder fuel tank through filter cleaner the utility model by oil transfer pump.
When high pressure oil pump is under camshaft actuated, when plunger is descending, pressure controlled valve is opened, and low-pressure cylinder oil flows into plunger cavity through pressure controlled valve;
When plunger is up, if pressure controlled valve is in opening state, then cylinder oil is not when having pressure to increase, and flows out plunger cavity turn back to low pressure oil way via pressure controlled valve;
When the residue cylinder oil that controller calculates in plunger cavity is the fuel delivery of operating mode necessity, pressure controlled valve cuts out, cut off drainback passage, plunger cavity inside cylinder oil is by compression boosting, the one-way valve that high pressure cylinder oil backs down high pressure oil outlet port is transported in common rail pipe, and the cylinder oil of conveying is equivalent to pressure controlled valve and closes the fuel delivery that back-plunger effective travel produces.If the rail pressure signal that controller transmits according to rail pressure sensor and other working condition signal change the opening time of pressure controlled valve, then fuel delivery changes thereupon, thus can control common rail pressure.When common rail pressure exceedes certain limit, pressure limiting valve 10 is opened, and the high pressure cylinder oil in common rail flows back to cylinder fuel tank through pressure limiting valve, improves the Security of system.
After cam crosses maximum lift, plunger is descending, and the pressure in plunger cavity reduces, and the closed check valve at high-pressure oil outlet place, stops to common rail oil transportation.Pressure controlled valve is opened again, and low-pressure cylinder oil is inhaled in plunger cavity, so circulates.
Controller is according to digital signals such as crankshaft of diesel engine angular signal, main unit load signal and fuel oil sulphur content, oiling timing and oil filling amount is provided after calculating, oiling Controlling solenoid valve was energized in the suitable time open, high pressure cylinder oil then in cylinder oil common rail is through oiling control valve, enter pump nozzle, back down the one-way valve in pump nozzle, spray in cylinder; After oiling continues appropriate time, the power-off of oiling control valve, oil outlet is closed, and oiling stops.
In the utility model, oiling starts the opening and closing depending on high speed oiling control valve with finish time completely, and oil filling amount depends on the time that cylinder oil common rail pressure and oiling control valve are opened completely, and fill cup hydraulic is exactly cylinder oil common rail pressure.Each pump nozzle is very near to the distance of common rail pipe, avoids the pressuring oil pipe that comparatively grows tall and the passing time of pressure wave is lengthened, so that oiling starting point and the delayed problem of terminal; And each pump nozzle is equal to the distance of common rail pipe, make the lubrication of cylinder more even.
To sum up, oiling timing in the utility model, oil filling amount, fill cup hydraulic can precisely control as required, realize the good lubrication of cylinder of diesel engine, improve diesel engine ride quality, and can avoid the waste of cylinder oil.
Claims (3)
1. a boat diesel engine electric-control common-rail type Cylinder lubricating lubrication system, it is characterized in that: comprise cylinder fuel tank, oil transfer pump, high pressure oil pump, common rail pipe, control valve, described common rail pipe comprises circular common rail, be connected by straight tube between two arc-shaped common rails, each straight tube is all connected with cylinder fuel tank by two oil pipes, described two oil pipes one of them filter cleaner is set, oil transfer pump, high pressure oil pump, in described two oil pipes, another oil pipe and straight tube connecting place arrange pressure limiting valve, high pressure oil pump arranges pressure controlled valve, straight tube arranges rail pressure sensor, circular common rail is connected with oiling control valve, described oiling control valve comprises housing and is arranged on the armature in housing, spring and static iron core, spring and static iron core are separately fixed at the inwall at housing two ends, armature is between spring and static iron core and be connected with spring, winding around on static iron core, housing arranges filler opening and oil outlet respectively, oil outlet is positioned on the stroke of armature, during coil electricity, armature moves to coil and oil outlet is opened, during coil blackout, armature under the action of the spring dorsad coil move oil outlet closed, oil outlet connects the pump nozzle be positioned in cylinder, control valve connects oiling control valve respectively by signaling line, rail pressure sensor and pressure controlled valve.
2. a kind of boat diesel engine electric-control common-rail type Cylinder lubricating lubrication system according to claim 1, it is characterized in that: described circular common rail comprises the arc tube of more than two sections, arc tube two ends arrange the first flange and the second flange respectively, first flange has seal groove, and adjacent circular arc pipe is connected with the second flange of another arc tube by the first flange of one of them arc tube.
3. a kind of boat diesel engine electric-control common-rail type Cylinder lubricating lubrication system according to claim 1 and 2, it is characterized in that: each common rail pipe corresponding diesel engine cylinder, each cylinder is installed the pump nozzle of more than three, the corresponding oiling control valve of each pump nozzle, is provided with the one-way valve preventing cylinder interior gas from entering pump nozzle inside in pump nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520900153.1U CN205206901U (en) | 2015-11-12 | 2015-11-12 | Oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520900153.1U CN205206901U (en) | 2015-11-12 | 2015-11-12 | Oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205206901U true CN205206901U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520900153.1U Withdrawn - After Issue CN205206901U (en) | 2015-11-12 | 2015-11-12 | Oil lubrication system is annotated to automatically controlled joint -track type cylinder of marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205206901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332762A (en) * | 2015-11-12 | 2016-02-17 | 哈尔滨工程大学 | Electric control common rail type cylinder oil injection lubricating system of ship diesel engine |
-
2015
- 2015-11-12 CN CN201520900153.1U patent/CN205206901U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332762A (en) * | 2015-11-12 | 2016-02-17 | 哈尔滨工程大学 | Electric control common rail type cylinder oil injection lubricating system of ship diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20171003 |