CN105927310A - Engine double-pump lubricating system - Google Patents

Engine double-pump lubricating system Download PDF

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Publication number
CN105927310A
CN105927310A CN201610250703.9A CN201610250703A CN105927310A CN 105927310 A CN105927310 A CN 105927310A CN 201610250703 A CN201610250703 A CN 201610250703A CN 105927310 A CN105927310 A CN 105927310A
Authority
CN
China
Prior art keywords
oil
liquid
pump
sump
level
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.)
Pending
Application number
CN201610250703.9A
Other languages
Chinese (zh)
Inventor
耿巍麟
顾冰
刘向伟
吴昊
程玄
杨靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI SANJIANG BOATS SCIENCE AND TECHNOLOGY Co Ltd
Hubei Sanjiang Aerospace Group Hongyang Electromechanical Co Ltd
Original Assignee
HUBEI SANJIANG BOATS SCIENCE AND TECHNOLOGY Co Ltd
Hubei Sanjiang Aerospace Group Hongyang Electromechanical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUBEI SANJIANG BOATS SCIENCE AND TECHNOLOGY Co Ltd, Hubei Sanjiang Aerospace Group Hongyang Electromechanical Co Ltd filed Critical HUBEI SANJIANG BOATS SCIENCE AND TECHNOLOGY Co Ltd
Priority to CN201610250703.9A priority Critical patent/CN105927310A/en
Publication of CN105927310A publication Critical patent/CN105927310A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/02Pressure lubrication using lubricating pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/16Controlling lubricant pressure or quantity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/06Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/061Means for keeping lubricant level constant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/08Separating lubricant from air or fuel-air mixture before entry into cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002Cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/02Pressure lubrication using lubricating pumps
    • F01M2001/0284Pressure lubrication using lubricating pumps mounting of the pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • F01M2011/0037Oilsumps with different oil compartments
    • F01M2011/0041Oilsumps with different oil compartments for accommodating movement or position of engines

Abstract

The invention discloses an engine double-pump lubricating system. The system comprises an oil pan, a main oil way and an auxiliary engine oil storage chamber; a low-position integration suction filter is arranged at the bottom end of the oil pan, and a high-position integration suction filter is arranged at the open end of the oil pan; the main oil way is communicated with the oil pan through a first-stage oil pump and the low-position integration suction filter sequentially, and therefore liquid in the oil pan can enter the main oil way under the effect of the first-stage oil pump; the auxiliary engine oil storage chamber is communicated with the oil pan through a second-stage oil pump and the high-position integration suction filter sequentially, and therefore the liquid, with the the liquid level higher than an inlet of the high-position integration suction filter, in the oil pan can enter the auxiliary engine oil storage chamber under the effect of the second-stage oil pump, so that the liquid face height of the liquid in the oil pan is maintained; and according to the system, the problems that in the prior art, the engine oil temperature rise speed of an engine lubricating system is high, and the engine oil liquid face height of the engine lubricating system is unstable are solved. The technical effect of improving the system reliability is achieved.

Description

A kind of electromotor two-pump lubricating system
Technical field
The present invention relates to the technical field of engines of ships and light boats, particularly relate to a kind of electromotor two-pump lubricating system.
Background technology
Engine lubrication system has pivotal role to engine performance and fatigue life, moistens at existing electromotor In sliding systems technology, the most single pump independence oil sump formula lubricating system, even if using the design of two-shipper oil pump, Also carry out pre-lubrication just with electronic slave oil pump friction surface each to electromotor, thus ensure typically to start The performance requirement of machine lubricating system.
But in ships and light boats engine art, owing to the rotating speed of high-speed craft boat engine is high, it is desirable to lubricating system Fuel feeding fast response time, on the one hand, heat accumulation amount is big at short notice, and the oil temperature rate of climb is fast;Separately On the one hand, in order to ensure the performance of engine lubrication system, the machine oil storage capacity in oil sump must be sufficiently large. But, there is " high inclination-angle, play about when anxious urgent deceleration, turning owing to carrying the high-speed vessel of electromotor Strong jolt " etc. operating mode, the machine oil amount of storage in oil sump is big, and liquid level is too high necessarily makes machine oil rock seriously, This will likely result in collecting filter and exposes pasta and pump into air, and then can have a strong impact on engine lubrication system Bearing capacity.
It is to say, engine lubrication system of the prior art, have that the oil temperature rate of climb is fast and machine The technical problem that oil level is highly unstable.
Summary of the invention
The present invention, by providing a kind of electromotor two-pump lubricating system, solves electromotor of the prior art profit Sliding system, the technical problem that the oil temperature rate of climb existed is fast and machine oil liquid level is unstable.
The embodiment of the present application provides following technical scheme:
A kind of electromotor two-pump lubricating system, described system includes:
Oil sump, the bottom of described oil sump is provided with the integrated collecting filter of low level;The opening of described oil sump It is provided with high-order integrated collecting filter;
Main oil gallery, described main oil gallery passes sequentially through one-level oil pump and the integrated collecting filter of described low level and the described oil end Shell connects, so that the liquid in described oil sump can enter described main oil under the effect of described one-level oil pump Road;
Slave oil storage room, described slave oil storage room passes sequentially through two grades of oil pumps and the filter of a described high position integrated collection Device connects with described oil sump, so that liquid level is higher than the integrated collecting filter import of a described high position in described oil sump Liquid can enter described slave oil storage room, to maintain described oil sump under the effect of described two grades of oil pumps The liquid level of middle liquid.
Optionally, described system also includes: overflow valve, and described overflow valve is arranged at going out of described one-level oil pump Between mouth and the entrance of described two grades of oil pumps, with the pressure at described primary oil delivery side of pump more than presetting pressure During power, partially liq is unloaded through described two grades of oil pumps and flow in described slave oil storage room.
Optionally, described system also includes: charge air cooler, and described charge air cooler is arranged at described one-level oil pump and institute State between main oil gallery, to cool down described liquid.
Optionally, described system also includes: oil filter, and described oil filter is with described charge air cooler even Connect, to filter the liquid flowing through described charge air cooler.
Optionally, the internal oil pocket font oil pocket for it of described charge air cooler, with growing liquid body heat switching path.
Optionally, described system also includes: cylinder head oil pocket, and described cylinder head oil pocket passes through trachea with described Slave oil storage room connects, so that the oil gas in described slave oil storage room can be segregated into described cylinder head oil Intracavity.
Optionally, described cylinder head oil pocket is connected with described oil sump, so that described cylinder head is oily by oil pipe The liquid that oil gas condensation in chamber becomes flows back to described oil sump by described oil pipe.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or excellent Point:
1, the system that the embodiment of the present application provides, on the one hand, when machine oil liquid level in oil sump is too high, Part machine oil, through high-order integrated collecting filter, enters slave oil storage room under the effect of two grades of oil pumps.Pass through The synergy arranging two cellular-type accumulators and two oil pumps can reduce rocking of machine oil, maintains one-level The liquid level of oil pump import department, reduces the air content in machine oil, and the stirring reducing toggle is damaged Lose, prevent the lubricating system caused due to the bad working environments carrying ships and light boats to lose efficacy, improve system reliability; On the other hand, can largely reduce the oil storage space of oil sump while ensureing high-efficiency lubricating, make Engine structure is compact;Another further aspect, carries out heat exchange, also to machine by slave oil storage room with the external world Oil has certain cooling effect, further increases system reliability;Another further aspect, filters integrated for low level collection Device is arranged on bottom oil sump, can prevent the foreign material such as the iron filings in machine oil from entering oil circuit, and low by being arranged on Position prevents air from entering working connection.
2, the system that the embodiment of the present application provides, the hydraulic oil at primary oil pump discharge exceedes lubricating system During the maximum pressure allowed, then, under the effect of the overflow valve arranged, a part of hydraulic oil is passed through overflow valve Unload to two grades of oil pumps, it is ensured that lubricating system safe and stable operation, prevent lubricating system charge oil pressure too high.
3, the system that the embodiment of the present application provides, arranges charge air cooler between one-level oil pump and main oil gallery, high Force feed enters charge air cooler by import, is entered main oil gallery by outlet in charge air cooler after abundant heat-shift, from And keep oil temperature to maintain normal range, can effectively prevent oil temperature too high causing from lubricating usefulness reduction Problem.
4, the system that the embodiment of the present application provides, sucks the oil of slave oil storage room by high-order integrated collecting filter Gas, rises to cylinder head oil pocket by trachea, then flow back into oil sump again after being condensed into low pressure oil, improves The utilization rate of machine oil, prevents oil gas from affecting oil lubricating effect.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawing can be obtained according to the accompanying drawing provided.
Fig. 1 is the structure chart of electromotor two-pump lubricating system in the embodiment of the present application;
Fig. 2 is the structural representation of charge air cooler in the embodiment of the present application.
Detailed description of the invention
The embodiment of the present application, by providing a kind of electromotor two-pump lubricating system, solves of the prior art Motivation lubricating system, the technology that the oil temperature rate of climb existed is fast and machine oil liquid level is unstable is asked Topic.Achieve the technique effect improving system reliability.
For solving above-mentioned technical problem, the general thought of the embodiment of the present application offer technical scheme is as follows:
The application provides a kind of electromotor two-pump lubricating system, and described system includes:
Oil sump, the bottom of described oil sump is provided with the integrated collecting filter of low level;The opening of described oil sump It is provided with high-order integrated collecting filter;
Main oil gallery, described main oil gallery passes sequentially through one-level oil pump and the integrated collecting filter of described low level and the described oil end Shell connects, so that the liquid in described oil sump can enter described main oil under the effect of described one-level oil pump Road;
Slave oil storage room, described slave oil storage room passes sequentially through two grades of oil pumps and the filter of a described high position integrated collection Device connects with described oil sump, so that liquid level is higher than the integrated collecting filter import of a described high position in described oil sump Liquid can enter described slave oil storage room, to maintain described oil sump under the effect of described two grades of oil pumps The liquid level of middle liquid.
Be can be seen that by foregoing, on the one hand, when machine oil liquid level in oil sump is too high, part machine Oil, through high-order integrated collecting filter, enters slave oil storage room under the effect of two grades of oil pumps.By arranging two The synergy of individual cellular-type accumulator and two oil pumps can reduce rocking of machine oil, maintains one-level oil pump to enter Liquid level at Kou, reduces the air content in machine oil, reduces the churn loss of toggle, anti- The lubricating system only caused owing to carrying the bad working environments of ships and light boats lost efficacy, and improve system reliability;The opposing party Face, can largely reduce the oil storage space of oil sump while ensureing high-efficiency lubricating, make electromotor Compact conformation;Another further aspect, carries out heat exchange by slave oil storage room with the external world, also machine oil is had one Fixed cooling effect, further increases system reliability;Another further aspect, installs integrated for low level collecting filter Bottom oil sump, can prevent the foreign material such as the iron filings in machine oil from entering oil circuit, and prevent by being arranged on low level Air enters working connection.
In order to be better understood from technique scheme, below in conjunction with Figure of description and concrete embodiment party Technique scheme is described in detail by formula, it should be understood that concrete in the embodiment of the present invention and embodiment Feature is to describe technical scheme in detail rather than restriction to technical scheme, In the case of not conflicting, the technical characteristic in the embodiment of the present application and embodiment can be mutually combined.
In the present embodiment, it is provided that a kind of electromotor two-pump lubricating system, refer to Fig. 1, Fig. 1 is this The structure chart of electromotor two-pump lubricating system in application embodiment, as it is shown in figure 1, described system includes:
Oil sump 1, the bottom of described oil sump 1 is provided with the integrated collecting filter of low level 2;Described oil sump 1 Opening be provided with high-order integrated collecting filter 3;
Main oil gallery 4, described main oil gallery 4 pass sequentially through one-level oil pump 5 and the integrated collecting filter of described low level 2 with Described oil sump 1 connects so that the liquid in described oil sump 1 can under the effect of described one-level oil pump 5, Enter described main oil gallery 4;
Slave oil storage room 6, described slave oil storage room 6 passes sequentially through two grades of oil pumps 7 and described high-order collection Collecting filter 3 is become to connect with described oil sump 1, so that liquid level is integrated higher than a described high position in described oil sump 1 The liquid of collecting filter 3 import can enter described slave oil storage room 6 under the effect of described two grades of oil pumps 7, To maintain the liquid level of liquid in described oil sump 1.
In the embodiment of the present application, described system can be the lubricating system of high-speed vessel electromotor, it is possible to To be the lubricating system of on-board engine, the lubricating system of other power plant engine, this is not restricted.
In the embodiment of the present application, described liquid is machine oil or other lubricating fluids, and this is not restricted.
Below in conjunction with Fig. 1, with described liquid as machine oil, described electromotor two-pump lubricating system is discussed in detail Structure and operation principle.
First, the structure of described electromotor two-pump lubricating system is introduced.
In specific implementation process, the integrated collecting filter of described low level 2 is arranged on bottom oil sump 1, i.e. installs In the lower section of high-order integrated collecting filter 3, the integrated collecting filter of described low level 2 is for preventing the iron filings etc. in machine oil Foreign material enter oil circuit, and its reason being arranged on low level is to prevent air from entering oil circuit;Wherein, described lower section For gravity direction.
Further, as it is shown in figure 1, described oil sump 1 can be divided into two oil pockets, the integrated collection of described low level Filter 2 is in an oil pocket, and the integrated collecting filter of a described high position 3 is in an oil pocket.
In specific implementation process, the unnecessary machine oil in oil sump 1 is through high-order integrated collecting filter 3, two Enter slave oil storage room 6 under the effect of level oil pump 7, then flow into oil sump 1 when needed, it is possible to make oil The liquid level of drain pan 1 keeps balance, prevents the lubricating system caused due to the bad working environments carrying ships and light boats from losing Effect.Meanwhile, the machine oil in slave oil storage room 6 and the external world can carry out heat exchange, also function to certain Cooling machine oil effect.
Further, flow into the machine oil of slave oil storage room 6, after cooling, oil sump 1 can be flow back into That oil pocket at low level integrated collecting filter 2 place, to ensure that this oil pocket has the engine oil supplying main oil gallery 4 of abundance.
In the embodiment of the present application, described system also includes:
Overflow valve 8, described overflow valve 8 is arranged at the outlet of described one-level oil pump 5 and described two grades of oil pumps 7 Entrance between, during with the pressure in the exit at described one-level oil pump 5 more than preset pressure, by part liquid Body unloads through described two grades of oil pumps 7 and flow in described slave oil storage room 6.
In specific implementation process, can need to select overflow valve, with satisfied difference according to concrete pressure Pressure demand, as shown in the liquid flow arrow in Fig. 1, overflow valve 8 realizes preventing lubricating system for oil pressure The too high principle of power is: when the pressure in one-level oil pump 5 exit meets normal requirement, overflow valve 8 cuts out; When the maximum pressure of the permission that the pressure in one-level oil pump 5 exit exceedes lubricating system, then overflow valve 8 leaves Opening, a part of hydraulic oil is unloaded to two grades of oil pumps 6 by overflow valve 6, finally flows into slave oil storage room 6, To prevent oil pressure too high, it is ensured that lubricating system safe and stable operation.
In the embodiment of the present application, described system also includes:
Charge air cooler 9, described charge air cooler 9 is arranged between described one-level oil pump 5 and described main oil gallery 4, with Cool down described liquid.
Refer to Fig. 2, Fig. 2 is the structural representation of charge air cooler in the embodiment of the present application, as in figure 2 it is shown, The internal oil pocket font oil pocket for it of described charge air cooler 9, with growing liquid body heat switching path.
Specifically, described charge air cooler 9 internal fluid passages is the filamentary region come and gone back and forth, with fixing Charge air cooler volume requirement under, it is achieved longer fluid flow path so that liquid carries out heat exchange Path increases, to improve the charge air cooler cooling effectiveness to liquid such as machine oil.
In the embodiment of the present application, described system also includes: oil filter 10, described oil filter 10 are connected with described charge air cooler 9, to filter the liquid flowing through described charge air cooler 9.
Specifically, the liquid such as machine oil flows through oil filter 10 after entering charge air cooler 9 and filters, in cold By entering main oil gallery 8 after abundant heat-shift in device 9, thus oil temperature is kept to maintain normal range, Can effectively prevent oil temperature too high causing from lubricating usefulness reduction.
In specific implementation process, described oil filter 10 can also be arranged on one-level oil pump 5 and described Between charge air cooler 9, or other positions before machine oil arrives main oil gallery 4, this is not restricted.
In the embodiment of the present application, described system also includes:
Cylinder head oil pocket 11, described cylinder head oil pocket 11 is by trachea 12 with described slave oil storage room 6 even It is logical, so that the oil gas in described slave oil storage room 6 can be segregated in described cylinder head oil pocket 11.
Further, described cylinder head oil pocket 11 is connected with described oil sump 1 by oil pipe 13, so that described The liquid that oil gas condensation in cylinder head oil pocket 11 becomes flows back to described oil sump 1 by described oil pipe 13.
Specifically, may there is oil gas in the machine oil sucked due to high-order integrated collecting filter 3, therefore machine oil enters After entering slave oil storage room 6, a part of oil gas is condensed into liquid through supercooling, and a part of oil gas rises to gas In cylinder cap oil pocket 11, it is to avoid mixed oil and gas in machine oil, affect lubricant effect.Rise to cylinder head oil pocket Oil gas in 11, after being lubricated the parts in cylinder head oil pocket 11, then flows after being condensed into low pressure oil again Return to oil sump 1, to recycle, strengthen machine oil utilization rate.
Specifically, the double pump system that the application provides ensure that timely, stable, continuous print high voltage supply pressure Power;ICS intercooler system ensure that engine lubrication system thermal balance.Additionally, cellular-type machine oil storage room can Effectively reduce machine oil air content and assist reduction oil temperature.Therefore, high-speed vessel engine lube system System performance is greatly improved, and can meet engine speed high, the lube system that vessel speeds is fast, operating mode is complicated System requirement.
It follows that introduce the operation principle of described electromotor two-pump lubricating system.
Lubrication major loop: as shown in the liquid flow arrow of Fig. 1, when system is run, in oil sump 1 Machine oil is through the effect of one-level oil pump 5, successively through the integrated collecting filter of low level 2, one-level oil pump 5, charge air cooler 9 Import, oil filter 10 and charge air cooler 9 outlet enter main oil gallery 4, are lubricated electromotor.
Pressure control loop: as shown in the liquid flow arrow of Fig. 1, when system is run, when one-level oil pump When the pressure in 5 exits is excessive, part machine oil is discharged into the storage of slave oil through overflow valve 8 and two grades of oil pumps 7 successively Deposit room 6, to prevent hypertonia.
Liquid level maintains loop: also shown in FIG. 1, when system is run, and the too much machine oil in oil sump 1, Under the effect of two grades of oil pumps 7, enter the storage of slave oil through high-order integrated collecting filter 3 and two grades of oil pumps 7 successively Deposit room 6, to maintain liquid level stabilizing.
Oil vapor treatment loop: also shown in FIG. 1, when system is run, enters in slave oil storage room 6 Machine oil in the oil gas that carries enter cylinder head oil pocket 11 through trachea 12, to the parts in cylinder head oil pocket 11 After being lubricated, it is condensed into low pressure oil and flow back into oil sump 1 through oil pipe 13, to strengthen machine oil utilization rate.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage:
1, the system that the embodiment of the present application provides, on the one hand, when machine oil liquid level in oil sump is too high, Part machine oil, through high-order integrated collecting filter, enters slave oil storage room under the effect of two grades of oil pumps.Pass through The synergy arranging two cellular-type accumulators and two oil pumps can reduce rocking of machine oil, maintains one-level The liquid level of oil pump import department, reduces the air content in machine oil, and the stirring reducing toggle is damaged Lose, prevent the lubricating system caused due to the bad working environments carrying ships and light boats to lose efficacy, improve system reliability; On the other hand, can largely reduce the oil storage space of oil sump while ensureing high-efficiency lubricating, make Engine structure is compact;Another further aspect, carries out heat exchange, also to machine by slave oil storage room with the external world Oil has certain cooling effect, further increases system reliability;Another further aspect, filters integrated for low level collection Device is arranged on bottom oil sump, can prevent the foreign material such as the iron filings in machine oil from entering oil circuit, and low by being arranged on Position prevents air from entering working connection.
2, the system that the embodiment of the present application provides, the hydraulic oil at primary oil pump discharge exceedes lubricating system During the maximum pressure allowed, then, under the effect of the overflow valve arranged, a part of hydraulic oil is passed through overflow valve Unload to two grades of oil pumps, it is ensured that lubricating system safe and stable operation, prevent lubricating system charge oil pressure too high.
3, the system that the embodiment of the present application provides, arranges charge air cooler between one-level oil pump and main oil gallery, high Force feed enters charge air cooler by import, is entered main oil gallery by outlet in charge air cooler after abundant heat-shift, from And keep oil temperature to maintain normal range, can effectively prevent oil temperature too high causing from lubricating usefulness reduction Problem.
4, the system that the embodiment of the present application provides, sucks the oil of slave oil storage room by high-order integrated collecting filter Gas, rises to cylinder head oil pocket by trachea, then flow back into oil sump again after being condensed into low pressure oil, improves The utilization rate of machine oil, prevents oil gas from affecting oil lubricating effect.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (7)

1. an electromotor two-pump lubricating system, it is characterised in that described system includes:
Oil sump, the bottom of described oil sump is provided with the integrated collecting filter of low level;The opening of described oil sump It is provided with high-order integrated collecting filter;
Main oil gallery, described main oil gallery passes sequentially through one-level oil pump and the integrated collecting filter of described low level and the described oil end Shell connects, so that the liquid in described oil sump can enter described main oil under the effect of described one-level oil pump Road;
Slave oil storage room, described slave oil storage room passes sequentially through two grades of oil pumps and the filter of a described high position integrated collection Device connects with described oil sump, so that liquid level is higher than the integrated collecting filter import of a described high position in described oil sump Liquid can enter described slave oil storage room, to maintain described oil sump under the effect of described two grades of oil pumps The liquid level of middle liquid.
2. the system as claimed in claim 1, it is characterised in that also include:
Overflow valve, described overflow valve be arranged at described primary oil delivery side of pump and described two grades of oil pumps entrance it Between, during with the pressure at described primary oil delivery side of pump more than preset pressure, by partially liq through described two Level oil pump unloads and flow in described slave oil storage room.
3. the system as claimed in claim 1, it is characterised in that also include:
Charge air cooler, described charge air cooler is arranged between described one-level oil pump and described main oil gallery, described with cooling Liquid.
4. system as claimed in claim 3, it is characterised in that also include:
Oil filter, described oil filter is connected with described charge air cooler, flows through described charge air cooler to filter Liquid.
5. system as claimed in claim 3, it is characterised in that the internal oil pocket word for it of described charge air cooler Shape oil pocket, with growing liquid body heat switching path.
6. the system as claimed in claim 1, it is characterised in that also include:
Cylinder head oil pocket, described cylinder head oil pocket is connected with described slave oil storage room by trachea, so that institute State the oil gas in slave oil storage room can be segregated in described cylinder head oil pocket.
7. system as claimed in claim 6, it is characterised in that described cylinder head oil pocket by oil pipe with Described oil sump connects, so that the liquid that the oil gas condensation in described cylinder head oil pocket becomes is by described oil pipe stream Return described oil sump.
CN201610250703.9A 2016-04-21 2016-04-21 Engine double-pump lubricating system Pending CN105927310A (en)

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Application Number Priority Date Filing Date Title
CN201610250703.9A CN105927310A (en) 2016-04-21 2016-04-21 Engine double-pump lubricating system

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Application Number Priority Date Filing Date Title
CN201610250703.9A CN105927310A (en) 2016-04-21 2016-04-21 Engine double-pump lubricating system

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CN105927310A true CN105927310A (en) 2016-09-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355666A (en) * 2017-09-09 2017-11-17 湖南机油泵股份有限公司 A kind of birotor lubricating oil pump
CN113847140A (en) * 2021-09-08 2021-12-28 东风汽车集团股份有限公司 Range extender lubricating and cooling system, hybrid electric vehicle and control method

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CN202081935U (en) * 2011-06-01 2011-12-21 北汽福田汽车股份有限公司 Oil and gas separator, engine and automobile
CN103806977A (en) * 2014-02-28 2014-05-21 湖北三江船艇科技有限公司 Parallel type rotor pump, liquid taking method and engine dry type oil pan lubricating system
CN104533652A (en) * 2015-01-20 2015-04-22 福州海霖动力有限公司 Oil cooling type diesel engine
CN205013077U (en) * 2015-08-07 2016-02-03 湖北三江船艇科技有限公司 Ships and light boats engine wet sump lubricating system

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US1910375A (en) * 1927-06-03 1933-05-23 Packard Motor Car Co Internal combustion engine
CN101270683A (en) * 2007-10-30 2008-09-24 重庆长安汽车股份有限公司 Gas oil separation structure of internal combustion engine crankcase ventilation system
CN202081935U (en) * 2011-06-01 2011-12-21 北汽福田汽车股份有限公司 Oil and gas separator, engine and automobile
CN103806977A (en) * 2014-02-28 2014-05-21 湖北三江船艇科技有限公司 Parallel type rotor pump, liquid taking method and engine dry type oil pan lubricating system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355666A (en) * 2017-09-09 2017-11-17 湖南机油泵股份有限公司 A kind of birotor lubricating oil pump
CN107355666B (en) * 2017-09-09 2022-08-09 湖南机油泵股份有限公司 Double-rotor oil pump
CN113847140A (en) * 2021-09-08 2021-12-28 东风汽车集团股份有限公司 Range extender lubricating and cooling system, hybrid electric vehicle and control method
CN113847140B (en) * 2021-09-08 2023-03-03 东风汽车集团股份有限公司 Range extender lubricating and cooling system, hybrid electric vehicle and control method

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Application publication date: 20160907