CN105041406A - Independent hydraulic oil supply system of marine low-speed diesel engine - Google Patents
Independent hydraulic oil supply system of marine low-speed diesel engine Download PDFInfo
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- CN105041406A CN105041406A CN201510318840.7A CN201510318840A CN105041406A CN 105041406 A CN105041406 A CN 105041406A CN 201510318840 A CN201510318840 A CN 201510318840A CN 105041406 A CN105041406 A CN 105041406A
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Abstract
An independent hydraulic oil supply system of a marine low-speed diesel engine comprises a lubricating oil system and a hydraulic oil system which are mutually independent, so that the independent oil supply of hydraulic oil of the marine low-speed diesel engine is realized. The hydraulic oil supply system is used for connecting an HPS (hydraulic power system) and an HCU (hydraulic control unit) of the marine low-speed diesel engine, and comprises a hydraulic oil circulation cabinet, a screw pump group, a plate cooler, a thermostat valve, a self-cleaning filter and a pressure difference adjusting valve; the screw pump group is used for extracting hydraulic oil from the hydraulic oil circulation cabinet, and supplies the hydraulic oil to the self-cleaning filter through adjusting oil temperature by the plate cooler and the thermostat valve; the hydraulic oil is transmitted to the HPS after being filtered by the self-cleaning filter and drives the HCU, so that the oil injection and exhaust of the marine low-speed diesel engine are controlled; the hydraulic oil in the HCU returns the hydraulic oil circulation cabinet; the oil pressure in a pipe is automatically adjusted by the pressure difference adjusting valve; and the stability of the HCU is improved. According to the independent hydraulic oil supply system of the marine low-speed diesel engine, the independent oil supply of the hydraulic oil of the marine low-speed diesel engine is realized; and the problem that the pressure difference inside an HCU/ HPS pipeline is overlarge is solved.
Description
Technical field
The present invention relates to a kind of fuel system for diesel engine, be specifically related to a kind of hydraulic oil independent oil supply system of marine low speed diesel engine, belong to Diesel Engine Technique Field.
Background technique
In recent years, in order to control greenhouse gas emission, the raising boats and ships efficiency of shipping business, International Maritime has put into effect a series of strict rule, proposes requirements at the higher level to the index such as discharge, oil consumption of marine diesel engine.For this reason, market is proposed ME series electronic controlled diesel, to reduce the discharge of operating cost and minimizing marine low speed diesel engine.Compared with traditional diesel engine, ME series electronic controlled diesel has canceled chain drive and camshaft mechanism, take brand-new hydraulic control unit (HCU) and hydraulic power unit (HPS), HPS is driven to provide hydraulic oil as automatically controlled power, by electromagnetic valve HCU opening and closing to carry out oil spout and exhaust event by bent axle.Traditional oil pump guide mechanism is replaced by brand-new HCU, drives solenoid valve action, complete oil spout and exhaust, by hydraulic oil for oil spout and exhaust provide power by control system.
Due to the particularity of the precision sealing structure of HCU hydraulic control unit inside, require very high, so just propose very high requirement to the filter precision of hydraulic oil to the turbidity test of hydraulic oil oil.Before entering HPS hydraulic power unit, the secondary filter that hydraulic oil carries through marine low speed diesel engine filters.
HPS hydraulic power unit provides high pressure liquid force feed for ME electronic controlled diesel, and then provides power for oil spout and exhaust gear, is one of core component of ME electronic controlled diesel, very high to the requirement of cleanliness of hydraulic oil.
HCU hydraulic control unit is arranged in the manipulation side of cylinder body, instead of camshaft mechanism and the fuel oil driving mechanism of traditional MC type diesel engine.The high pressure liquid force feed of coming from HPS enters into hydraulic oil pipe, and enters HCU by the flexible pipe of each cylinder, for oil sprayer and outlet valve provide power.Having a core to control part in HCU hydraulic control unit is that fuel oil sprays gas exhaust inspecting multi-way valve (FIVA valve), is also topmost control valve in HCU hydraulic control unit.This FIVA valve has three working staties, namely static state do not work, oil spout state and exhaust condition, be respectively used to control fuel injection quantity and air displacement.Whether marine low speed diesel engine can well run in an orderly manner depends on the running whether this FIVA valve can be reliable and stable, and this valve whether can be good work, depend on again the hydraulic oil of ultra-high purity completely, therefore any impurity can not be contained in hydraulic oil, otherwise have influence on the switch sensitivity of FIVA valve, and then cause marine low speed diesel engine can not normal operation.
Among machine, any motion parts all can't do without lubrication, the lubricating oil circulatory system of diesel engine comprises: main lubricating oil, camshaft lubricating oil, pressurized machine lubricating oil, support lubricating oil, chain-wheel box lubricating oil and HCU lubricating oil, HPS lubricating oil etc., lubricating oil enters into each motion parts by pipeline, not only play lubrication, and there is cooling action, cleaning action, also be used as pressure transmission, in HCU hydraulic control unit and HPS hydraulic power unit, mainly play pressure transmission effect.
HCU and HPS wants strict to the requirement of cleanliness of hydraulic oil relative to other oil system, any impurity has not been allowed to enter its hydraulic oil inner, otherwise can have an impact to the acting of the precision sealing mechanism of HCU inside and FIVA valve, make oil spout and the exhausting sequence confusion reigned of each cylinder of marine low speed diesel engine, unavoidable damage is caused to marine low speed diesel engine.
Fig. 1 is shown in by the schematic diagram of traditional MC marine low speed diesel engine oil system.
Lubricating oil in lubricating oil sump tank 1 is extracted out by lubricating oil pump through strainer, then is input in the lubricating oil house steward of following several roads marine low speed diesel engine 7 through secondary filter and panel cooler: the main oil pipe 4 of main oil pipe 2, chain-wheel box oil pipe 3, support, pressurized machine oil pipe 5 and camshaft oil pipe 6.Be connected to some arms in each lubricating oil house steward, lubricating oil flow to the places such as main bearing, connecting rod bearing, cross head bearing and lubricates through each arm.All lubrications and the lubricating oil cooled, after completing its task, come together in oil sump through special pipeline, return lubricating oil sump tank 1, complete the circulation of whole oil system.
Because the camshaft of the marine low speed diesel engine of traditional MC type and the requirement of oil pump valve train to lubricating oil are not too high, thus the oil system of the marine low speed diesel engine of traditional MC type adopts the structure of Fig. 1, there is not too large problem.
Fig. 2 is shown in by the schematic diagram of existing ME electronic controlled diesel oil system.
Lubricating oil in lubricating oil sump tank 1 is extracted out by lubricating oil pump through strainer, then is input in following a few road lubricating oil house stewards of marine low speed diesel engine 7 through secondary filter and panel cooler: the main oil pipe 4 of main oil pipe 2, support, pressurized machine oil pipe 5, HPS hydraulic power unit 8 and HCU hydraulic control unit 9.Be connected to some arms in each lubricating oil house steward, lubricating oil flow to the places such as main bearing, connecting rod bearing, cross head bearing and lubricates through each arm.All lubrications and the lubricating oil cooled, after completing its task, come together in oil sump through special pipeline, return lubricating oil sump tank 1, complete the circulation of whole oil system.
Along with the renewal of technology, the MEC type of being evolved by MCC, ME electronic controlled diesel has canceled chain drive and camshaft mechanism.Take brand-new hydraulic control unit (HCU) and hydraulic power unit (HPS), traditional oil pump guide mechanism is replaced by brand-new HCU, drive solenoid valve action by control system, complete oil spout and exhaust, hydraulic oil provides power for oil spout and exhaust.New HPS and HCU two unit are very high to the requirement of lubricating oil turbidity test, as can be seen from Figure 2, the lubricating oil of HPS and HCU two unit is all provided by lubricating oil sump tank 1, the lubricating oil sump tank 1 and all lubricating oil of whole diesel engine are all released, along with the raising of diesel engine strengthening degree and the use of poor quality fuel oil, make the operating conditions of lubricant oil more and more poor, HPS and HCU can be made to there is potential safety hazard by same circulation Oil Tank fuel feeding, and damage whole diesel engine.In addition, owing to using same lubricating oil sump tank 1, make the pressure of whole lube pipe be consistent, thus cannot meet the fuel feeding requirement to HPS and HCU when low-load of marine low-speed diesel oil, too high oil pressure can make the work that two unit can not be stable.
Summary of the invention
The object of the invention is to solve hydraulic oil and the lubricant oil potential safety hazard that uses same lubricating oil circulation Oil Tank to bring that prior art exists and HPS and HCU can not change hydraulic oil charge oil pressure problem when low-load, a kind of hydraulic oil independent oil supply system of marine low speed diesel engine is provided, realize being separated of oil system and hydraulic oil system, and the pressure reduction of HCU and HPS when low-load in hydraulic oil oil inlet and oil return pipeline is reduced.
The object of the invention is to be achieved through the following technical solutions:
A kind of hydraulic oil independent oil supply system of marine low speed diesel engine, comprise lubricating oil system, this lubricating oil system comprises main oil pipe, the main oil pipe of support, pressurized machine oil pipe and lubrication oil circulation cabinet, wherein, lubricant oil in lubrication oil circulation cabinet is input to main oil pipe, the main oil pipe of support, in pressurized machine oil pipe, the each lubrication place flow to respectively afterwards on described marine low speed diesel engine carries out lubrication and cooling, collect after finishing the work and get back to lubrication oil circulation cabinet, thus complete the lubrication oil circulation of whole system, it is characterized in that: described oil supply system also comprises the hydraulic oil system separate with described lubricating oil system, realize the independent oil supply of the hydraulic oil of described marine low speed diesel engine.
As further improvement, described hydraulic oil system connects HPS hydraulic power unit and the HCU hydraulic control unit of described marine low speed diesel engine, and this HCU hydraulic control unit is connected with HPS hydraulic power unit; Described hydraulic oil system comprises:
Hydro oil sump tank, for holding hydraulic oil, is connected with the return tube of described HCU hydraulic control unit;
Screw pump group, connects described hydro oil sump tank and extract hydraulic oil from this hydro oil sump tank;
From secondary cleaner, for filtering hydraulic oil, connecting described hydro oil sump tank, connecting described HPS hydraulic power unit simultaneously and sending the hydraulic oil after filtering to HPS hydraulic power unit;
Panel cooler and thermostat valve, wherein, panel cooler is used for cooling liquid force feed, and thermostat valve, for the oil temperature of hydraulic oil detecting described screw pump group and release from hydro oil sump tank, is preset with temperature threshold in this thermostat valve; Described panel cooler and thermostat valve are connected to described screw pump group and between secondary cleaner, when the temperature of the hydraulic oil that described screw pump group is released from hydro oil sump tank meets the temperature threshold in described thermostat valve, this thermostat valve is opened, namely hydraulic oil supply described HPS hydraulic power unit without the need to cooling, when the temperature of the hydraulic oil that described screw pump group is released from hydro oil sump tank is higher than temperature threshold in described thermostat valve, this thermostat valve cuts out, and hydraulic oil resupplies described HPS hydraulic power unit after described panel cooler cools;
Pressure-difference valve, is connected between the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit; When the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit raises, this pressure-difference valve turns down, when the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit reduces, this pressure-difference valve is opened greatly, thus makes to keep constant pressure reduction in the oil inlet pipe of described HPS hydraulic power unit with in the return tube of described HCU hydraulic control unit;
Described screw pump group extracts hydraulic oil from independently hydro oil sump tank, after regulating oil temperature by described panel cooler and thermostat valve, supply is described from secondary cleaner, through described HPS hydraulic power unit should be sent to by the hydraulic oil after secondary cleaner filters, this HPS hydraulic power unit provides hydraulic oil to described HCU hydraulic control unit and drives this HCU hydraulic control unit, to control oil spout and the exhaust of described marine low speed diesel engine, described hydro oil sump tank directly got back to by hydraulic oil in described HCU hydraulic control unit, the pressure of hydraulic oil in the automatic adjutage of described pressure-difference valve, improve the stability of described HCU hydraulic control unit.
As further improvement, described hydro oil sump tank is provided with the level meter for monitoring level height in this hydro oil sump tank, pipeline of releasing for the sump oil discharging sump oil, the access opening facilitating personnel to carry out cleaning and overhauling, in order to ensure the ventilative pipeline that air-flow is unobstructed and in order to refuel filler opening and Oil Tank filter.
As further improvement, described has the function of itself automatically cleaning from secondary cleaner.
Compared with prior art, beneficial effect of the present invention is:
1) oil system of traditional marine diesel engine is separated into hydraulic oil oil supply system and lubricating oil system, lubricating oil in lubricating oil system and hydraulic oil system is respectively at respective system Inner eycle, mutual noninterference, achieve the independent oil supply of HPS and HCU to marine low speed diesel engine, can not impact main lubricating oil system, improve the oily degree of purity of hydraulic oil, decrease the potential safety hazard of damage diesel engine, and substantially increase the working stability of hydraulic control unit and associated host component.
2) along with the variation of marine low speed diesel engine load carrys out automatic regulator solution force feed fuel supply line internal pressure, automatically FIVA valve is closed to reduce the pressure of fuel supply line inside when low-load, thus automatically can regulate the pressure reduction of fuel feeding return tube, efficiently solve the marine low speed diesel engine problem that in HCU/HPS lube pipe, pressure reduction is excessive when low-load.
3) the present invention installs simple and safe, and system maintenance maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is the oil system schematic diagram of traditional MC marine low speed diesel engine.
Fig. 2 is the oil system schematic diagram of existing ME electronic controlled diesel.
Fig. 3 is oil system schematic diagram of the present invention.
In figure,
1 lubricating oil sump tank, 2 main oil pipes, 3 chain-wheel box oil pipes, the main oil pipe of 4 support, 5 pressurized machine oil pipes, 6 camshaft oil pipes, 7 marine low speed diesel engines, 8HPS hydraulic power unit, 9HCU hydraulic control unit, 10 lubrication oil circulation cabinets, 11 level meters, 12 sump oils are released pipeline, 13 access openings, 14 hydro oil sump tanks, 15 screw pump groups, 16 panel coolers, 17 thermostat valves, 18 Oil Tank filters, 19 ventilative pipelines, 20 from secondary cleaner, 21 pressure-difference valves.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention being elaborated, in the hope of being more expressly understood structure of the present invention and using process, but can not limit the scope of the invention with this.
Refer to 3, the hydraulic oil independent oil supply system of described marine low speed diesel engine comprises separately independently hydraulic oil system and lubricating oil system, achieves the independent oil supply of the hydraulic oil of described marine low speed diesel engine 7.
Described lubricating oil system comprises main oil pipe 2, the main oil pipe 4 of support, pressurized machine oil pipe 5 and lubrication oil circulation cabinet 10.Lubricant oil in described lubrication oil circulation cabinet 10 is input in described main oil pipe 2, the main oil pipe 4 of support, pressurized machine oil pipe 5, the lubrication place such as main bearing, connecting rod bearing, cross head bearing flow to respectively on described marine low speed diesel engine 7 through some arms afterwards carries out lubrication and cooling, all lubricant oil is after completing its task, oil sump is come together in through special pipeline, return described lubrication oil circulation cabinet 10, thus complete the lubrication oil circulation of whole system.
Described hydraulic oil oil supply system connects HPS hydraulic power unit 8 and the HCU hydraulic control unit 9 of described marine low speed diesel engine 7, it comprise hydro oil sump tank 14, screw pump group 15, panel cooler 16, thermostat valve 17, from secondary cleaner 20 and pressure-difference valve 21.
Described hydro oil sump tank 14, for holding hydraulic oil, this hydro oil sump tank 14 is provided with the level meter 11 for monitoring level height in this hydro oil sump tank 14; The sump oil being provided with discharge sump oil in the corner of described hydro oil sump tank 14 bottom is released pipeline 12, this hydro oil sump tank 14 is also furnished with access opening 13, enter in described hydro oil sump tank 14 carry out cleaning, check and overhauling to maintain easily maintainer, it is unobstructed to ensure the air-flow of this hydro oil sump tank 14 that the top of described hydro oil sump tank 14 is provided with ventilative pipeline 19, and in order to the filler opening that refuels and Oil Tank filter 18.
Described screw pump group 15 connects described hydro oil sump tank 14, describedly connect described HPS hydraulic power unit 8 from secondary cleaner 20, described panel cooler 16 and thermostat valve 17 are connected to this screw pump group 15 and between secondary cleaner 20, this panel cooler 16 is for cooling liquid force feed, this thermostat valve 17, for the oil temperature of hydraulic oil detecting described screw pump group 15 and release from hydro oil sump tank 14, is wherein preset with temperature threshold; When the temperature of the hydraulic oil that described screw pump group 15 is released from hydro oil sump tank 14 meets the temperature threshold preset in described thermostat valve 17, the import of this thermostat valve 17 is opened, hydraulic oil can supply described HPS hydraulic power unit 8 without the need to cooling, if the temperature of the hydraulic oil that described screw pump group 15 is extracted out is higher than the temperature threshold in described thermostat valve 17, then the import of described thermostat valve 17 is closed, and hydraulic oil resupplies the HPS hydraulic power unit 8 of described marine low speed diesel engine 7 after described panel cooler 16 cools.
Described have the function of itself automatically cleaning from secondary cleaner 20, for filtering the hydraulic oil from thermostat valve 15, hydraulic oil after filtering from secondary cleaner 20 sends HPS hydraulic power unit 8 to by oil pipe, and then the HCU hydraulic control unit 9 be connected with HPS hydraulic power unit 8 is sent to through oil pipe, drive solenoid valve action with control system, complete oil spout and the exhaust of described marine low speed diesel engine 7.Describedly be connected with described hydro oil sump tank 14 by a road bleeder pipe from secondary cleaner 20, the sump oil impurity that should wash down from secondary cleaner 20 is released to described hydro oil sump tank 14.
Described HCU hydraulic control unit 9 is connected with described hydro oil sump tank 14 by return tube, and hydraulic oil is back to this hydro oil sump tank 14 again.
Described pressure-difference valve 21 is connected between the oil inlet pipe of described HPS hydraulic power unit 8 and the return tube of described HCU hydraulic control unit 9.This pressure-difference valve 21 is made up of a control valve (Flange joint), a driver with actuating bellows and a spring setting pressure reduction.Between the oil inlet pipe that one pulsed tube is arranged on described HPS hydraulic power unit 8 and described driver, the pressure of described oil inlet pipe and return tube is guided on driver by this pulser.When the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit 8 and the return tube of described HCU hydraulic control unit 9 raises, described pressure-difference valve 21 turns down; When the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit 8 and the return tube of described HCU hydraulic control unit 9 reduces, described pressure-difference valve 21 is opened greatly, thus make to keep constant pressure reduction in the oil inlet pipe of described HPS hydraulic power unit 8 with in the return tube of described HCU hydraulic control unit 9, improve the stability of described HCU hydraulic control unit 9.
Specific works mode of the present invention is as follows:
The hydraulic oil independent oil supply system of described marine low speed diesel engine adopts and independently supplies hydraulic oil, from independently hydro oil sump tank 14 directly supply described marine low speed diesel engine 7 from secondary cleaner 20, described HPS hydraulic power unit 8 is sent to through described hydraulic oil after secondary cleaner 20 filters, this hydraulic power unit 8 drives HPS to provide hydraulic oil as automatically controlled power by bent axle, by HCU hydraulic control unit 9 opening and closing described in electromagnetic valve to carry out oil spout and exhaust event, hydraulic oil in described HCU hydraulic control unit 9 directly gets back to described hydro oil sump tank 14 by return tube, when main frame low-load, the pressure-difference valve 21 be connected between the oil inlet pipe of HPS hydraulic power unit 8 and the return tube of described HCU hydraulic control unit 9 is opened, the pressure of hydraulic oil in automatic adjutage, improve the stability that main frame runs.
Above are only the preferred embodiments of the present invention, it must be noted that, the various equivalent modifications that those skilled in the art is all to be done according to the present patent application content, change and correction, all should become the protection domain of patent of the present invention.
Claims (4)
1. the hydraulic oil independent oil supply system of a marine low speed diesel engine, comprise lubricating oil system, this lubricating oil system comprises main oil pipe, the main oil pipe of support, pressurized machine oil pipe and lubrication oil circulation cabinet, wherein, lubricant oil in lubrication oil circulation cabinet is input to main oil pipe, the main oil pipe of support, in pressurized machine oil pipe, the each lubrication place flow to respectively afterwards on described marine low speed diesel engine carries out lubrication and cooling, collect after finishing the work and get back to lubrication oil circulation cabinet, thus complete the lubrication oil circulation of whole system, it is characterized in that: described oil supply system also comprises the hydraulic oil system separate with described lubricating oil system, realize the independent oil supply of the hydraulic oil of described marine low speed diesel engine.
2. the hydraulic oil independent oil supply system of marine low speed diesel engine according to claim 1, it is characterized in that: described hydraulic oil system connects HPS hydraulic power unit and the HCU hydraulic control unit of described marine low speed diesel engine, and this HCU hydraulic control unit is connected with HPS hydraulic power unit; Described hydraulic oil system comprises:
Hydro oil sump tank, for holding hydraulic oil, is connected with the return tube of described HCU hydraulic control unit;
Screw pump group, connects described hydro oil sump tank and extract hydraulic oil from this hydro oil sump tank;
From secondary cleaner, for filtering hydraulic oil, connecting described hydro oil sump tank, connecting described HPS hydraulic power unit simultaneously and sending the hydraulic oil after filtering to HPS hydraulic power unit;
Panel cooler and thermostat valve, wherein, panel cooler is used for cooling liquid force feed, and thermostat valve, for the oil temperature of hydraulic oil detecting described screw pump group and release from hydro oil sump tank, is preset with temperature threshold in this thermostat valve; Described panel cooler and thermostat valve are connected to described screw pump group and between secondary cleaner, when the temperature of the hydraulic oil that described screw pump group is released from hydro oil sump tank meets the temperature threshold in described thermostat valve, this thermostat valve is opened, namely hydraulic oil supply described HPS hydraulic power unit without the need to cooling, when the temperature of the hydraulic oil that described screw pump group is released from hydro oil sump tank is higher than temperature threshold in described thermostat valve, this thermostat valve cuts out, and hydraulic oil resupplies described HPS hydraulic power unit after described panel cooler cools;
Pressure-difference valve, is connected between the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit; When the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit raises, this pressure-difference valve turns down, when the pressure reduction of the oil inlet pipe of described HPS hydraulic power unit and the return tube of described HCU hydraulic control unit reduces, this pressure-difference valve is opened greatly, thus makes to keep constant pressure reduction in the oil inlet pipe of described HPS hydraulic power unit with in the return tube of described HCU hydraulic control unit;
Described screw pump group extracts hydraulic oil from independently hydro oil sump tank, after regulating oil temperature by described panel cooler and thermostat valve, supply is described from secondary cleaner, through described HPS hydraulic power unit should be sent to by the hydraulic oil after secondary cleaner filters, this HPS hydraulic power unit provides hydraulic oil to described HCU hydraulic control unit and drives this HCU hydraulic control unit, to control oil spout and the exhaust of described marine low speed diesel engine, described hydro oil sump tank directly got back to by hydraulic oil in described HCU hydraulic control unit, the pressure of hydraulic oil in the automatic adjutage of described pressure-difference valve, improve the stability of described HCU hydraulic control unit.
3. the hydraulic oil independent oil supply system of marine low speed diesel engine according to claim 2, is characterized in that: described hydro oil sump tank is provided with the level meter for monitoring level height in this hydro oil sump tank, pipeline of releasing for the sump oil discharging sump oil, the access opening facilitating personnel to carry out cleaning and overhauling, in order to ensure the ventilative pipeline that air-flow is unobstructed and in order to refuel filler opening and Oil Tank filter.
4. the hydraulic oil independent oil supply system of the marine low speed diesel engine according to Claims 2 or 3, is characterized in that: described has the function of itself automatically cleaning from secondary cleaner.
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| CN201510318840.7A CN105041406A (en) | 2015-06-11 | 2015-06-11 | Independent hydraulic oil supply system of marine low-speed diesel engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167070A (en) * | 2017-12-25 | 2018-06-15 | 上海中船三井造船柴油机有限公司 | For the independent lubricating oil oil supply system of marine low speed diesel engine booster |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
| CN112503378A (en) * | 2020-11-30 | 2021-03-16 | 沪东重机有限公司 | Lubricating oil tank with independent hydraulic oil control system for diesel engine |
| CN114575945A (en) * | 2022-02-17 | 2022-06-03 | 江苏新扬子造船有限公司 | Lubricating oil system of marine main engine |
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| CN102454446A (en) * | 2011-03-31 | 2012-05-16 | 大连船用柴油机有限公司 | Warm-up and test bed trial technology for lubricating system of diesel engine |
| CN102797607A (en) * | 2012-08-30 | 2012-11-28 | 上海中船三井造船柴油机有限公司 | Back pressure valve for fuel inlet/return pipeline of marine low-speed diesel engine |
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| WO2006081829A1 (en) * | 2005-02-02 | 2006-08-10 | Man Diesel A/S | A large two-stroke diesel engine with hydraulically actuated exhaust gas valves |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108167070A (en) * | 2017-12-25 | 2018-06-15 | 上海中船三井造船柴油机有限公司 | For the independent lubricating oil oil supply system of marine low speed diesel engine booster |
| CN109026874A (en) * | 2018-08-27 | 2018-12-18 | 上海中船三井造船柴油机有限公司 | A kind of pressure-difference valve for the independent hydraulically controlled oil system of low-speed diesel engine |
| CN112503378A (en) * | 2020-11-30 | 2021-03-16 | 沪东重机有限公司 | Lubricating oil tank with independent hydraulic oil control system for diesel engine |
| CN114575945A (en) * | 2022-02-17 | 2022-06-03 | 江苏新扬子造船有限公司 | Lubricating oil system of marine main engine |
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