CN106050352A - Internal combustion engine and main bearing lubrication system thereof - Google Patents
Internal combustion engine and main bearing lubrication system thereof Download PDFInfo
- Publication number
- CN106050352A CN106050352A CN201610674203.8A CN201610674203A CN106050352A CN 106050352 A CN106050352 A CN 106050352A CN 201610674203 A CN201610674203 A CN 201610674203A CN 106050352 A CN106050352 A CN 106050352A
- Authority
- CN
- China
- Prior art keywords
- internal combustion
- combustion engine
- oil
- main bearing
- lubrication system
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
- F01M5/021—Conditioning lubricant for aiding engine starting, e.g. heating by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M2005/008—Lubrication means facilitating engine starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/026—Arrangements of lubricant conduits for lubricating crankshaft bearings
Abstract
The present invention relates to a main bearing lubrication system of an internal combustion engine. The main bearing lubrication system comprises a main oil passage, and a lubrication passage for leading lubricating oil to a main bearing. The main oil passage comprises an enclosed section, and an open section that is sealed by a cylinder sleeve of the internal combustion engine to form a passage for the lubricating oil to flow. The main bearing lubrication system disclosed in the present invention allows achievement of the purpose of rapidly reducing the viscosity of the lubrication system at low-temperature start to improve the fluidity of the lubricating oil and enhance the lubrication effect. The present invention further discloses an internal combustion engine with the main bearing lubrication system.
Description
Technical field
The present invention relates to internal combustion engine production technical field, particularly to a kind of internal combustion engine and main bearing lubrication system thereof.
Background technology
It is known that internal combustion engine needs lubricating oil to be lubricated each kinematic pair in running, to avoid each fortune
There is dry friction in dynamic pair, thus ensures that internal combustion engine runs reliably.
In internal combustion engine, base bearing for supporting crank rotation is one of parts of needing emphasis to lubricate, oil sump and oil
The main oil gallery of drain pan connection connects and is guided into by lubricating oil the lubrication channel of base bearing and constitutes main bearing lubrication system with main oil gallery
System, the pressures cycle that the intrasystem machine oil of main bearing lubrication is provided by lubricating oil pump flows, as shown in fig. 1, current main oil
Road 01 processes on the body of internal combustion engine generally by mach mode, and lubrication channel 02 will profit after connecting with main oil gallery 01
Base bearing position guided into by lubricating oil.
But, when low-temperature cool starting, oil body is big, and its mobility is poor, the lubrication effect of body inside main bearing
The most undesirable, and in lubricating oil pump, it is typically provided with relief valve, when engine cold-start, lead owing to oil body is big
Causing oil pressure higher, a part of lubricating oil can be uninstalled by lubricating oil pump, and entering into the lubricating oil in body will reduce, this just aggravation
The situation of insufficient lubrication.
Therefore, when cold-starting, how can quickly reduce lubricating oil viscosity, improve the mobility of lubricating oil, to protect
Card lubricant effect is that current those skilled in the art need badly and solve the technical problem that.
Summary of the invention
An object of the present invention is to provide a kind of main bearing lubrication system, in order to when cold-starting, it is possible to fast prompt drop
Low lubricating oil viscosity, improves the mobility of lubricating oil, thus ensures lubricant effect.
Another object of the present invention also resides in a kind of internal combustion engine with above-mentioned main bearing lubrication system of offer.
For reaching above-mentioned purpose, the main bearing lubrication system that disclosed in this invention includes main oil gallery and for by lubricating oil
Guiding the lubrication channel of base bearing into, described main oil gallery includes closed section and open segment, and described open segment is by described internal combustion engine
Cylinder sleeve forms the passage for lubricating oil flow after closing.
Preferably, described main oil gallery is the horizontal oil duct axially in parallel with the bent axle of described internal combustion engine, described lubrication channel
For the vertical oil duct connected with described main oil gallery.
Preferably, described main oil gallery is less than the top of described lubrication channel, and the top of described lubrication channel is by centre
Connection oil duct connects with described main oil gallery.
Preferably, described intermediate connection oil duct is open oil duct, and described intermediate connection oil duct is by described internal combustion engine
Cylinder sleeve is formed after closing and closes oil duct.
Preferably, described intermediate connection oil duct is additionally provided with oil storage pool for the one end being connected with described lubrication channel, institute
The top stating lubrication channel connects to take oil with described oil storage pool.
Preferably, the top extended line for the bolt that fastens described base bearing be Main bearing bolt by the line of force, for tight
Gu the top extended line of the bolt of cylinder cap be cylinder bolt by the line of force, described lubrication channel and described Main bearing bolt by the line of force with
And described cylinder bolt is the most non-intersect by the line of force.
Preferably, described main oil gallery is casting oil duct.
Preferably, the cross section of described main oil gallery closed section is circular.
The internal combustion engine that disclosed in this invention include main bearing lubrication system, described main bearing lubrication system be above-mentioned arbitrarily
Main bearing lubrication system disclosed in one.
As can be seen from the above technical solutions, in the present invention, the main oil gallery of main bearing lubrication system includes closed section and opening
Section, and this open segment closed by the cylinder sleeve of internal combustion engine after defined the passage for lubricating oil flow, say, that main oil gallery is opened
The most a part of sidewall of passage for lubricating oil flow that the section of putting is formed is the cylinder sleeve of internal combustion engine, owing to interior combustion gas is from startup
Starting, cylinder sleeve will outwards distribute substantial amounts of heat, and now the lubricating oil in main oil gallery will absorb the heat that cylinder sleeve is distributed, from
Body temperature improves the most rapidly, and its viscosity reduces, and mobility can tend to preferable at short notice, and lubricating oil can fill at faster speed
Full base bearing, carries out good lubrication to base bearing.Therefore, the main bearing lubrication system that disclosed in this invention has reached at low temperature
Quickly reduce lubricating oil viscosity during startup, improve lubricating oil flow, strengthen the purpose of lubricant effect.
The internal combustion engine that disclosed in this invention is owing to have employed above-mentioned main bearing lubrication system, and therefore this internal combustion engine has concurrently
State the corresponding technological merit of main bearing lubrication system, herein this is no longer repeated.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of main bearing lubrication system in prior art；
Fig. 2 be in the embodiment of the present invention main oil gallery and cylinder sleeve coordinate schematic diagram；
Fig. 3 is the structural representation of intermediate connection oil duct disclosed in the embodiment of the present invention and oil storage pool；
Fig. 4 is the A-A cross-sectional schematic in Fig. 2；
Fig. 5 is the C-C cross-sectional schematic in Fig. 2；
Fig. 6 is the B-B cross-sectional schematic in Fig. 3.
Wherein,
1 is main oil gallery, and 2 is lubrication channel, and 3 is cylinder sleeve, and 4 is intermediate connection oil duct, and 5 is oil storage pool, and 6 is Main bearing bolt
Hole.
Detailed description of the invention
One of core of the present invention is to provide a kind of main bearing lubrication system, in order to when cold-starting, it is possible to fast prompt drop
Low lubricating oil viscosity, improves the mobility of lubricating oil, thus ensures lubricant effect.
Another core of the present invention also resides in a kind of internal combustion engine with above-mentioned main bearing lubrication system of offer.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and detailed description of the invention
The present invention is described in further detail.
Main bearing lubrication system disclosed in the embodiment of the present invention, including main oil gallery 1 with for guiding lubricating oil into master
The lubrication channel 2 of bearing, as illustrated in fig 2 and fig, and main oil gallery 1 includes closed section and open segment, the opening of main oil gallery 1
Section forms the passage for lubricating oil flow after being closed by the cylinder sleeve 3 of internal combustion engine.
Need to illustrate, the internal combustion engine in the present invention, include but not limited to diesel engine and gasoline engine, main oil gallery 1
Being opened on the body of internal combustion engine, so-called closed section specifically refers to only i.e. may make up main oil by the material of IC engine airframe itself
The sidewall in road 1, and open segment refers to need miscellaneous part to coordinate the sidewall collectively forming main oil gallery 1 with IC engine airframe.
Main oil gallery 1 in above-described embodiment includes closed section and open segment, and this open segment is by cylinder sleeve 3 envelope of internal combustion engine
The passage for lubricating oil flow is defined, say, that the passage for lubricating oil flow that main oil gallery 1 open segment is formed after closing
The most a part of sidewall is the cylinder sleeve 3 of internal combustion engine, and owing to interior combustion gas is from the beginning of startup, cylinder sleeve 3 will outwards distribute substantial amounts of
Heat, now the lubricating oil in main oil gallery 1 will absorb the heat that cylinder sleeve 3 is distributed, and own temperature improves the most rapidly, its viscosity drop
Low, mobility can tend to preferable at short notice, and lubricating oil can be full of base bearing at faster speed, carry out base bearing well
Lubrication；On the other hand cylinder sleeve 3 and piston are also cooled down by lubricating oil simultaneously.Therefore, the base bearing that disclosed in this invention
Lubricating system has reached quickly to reduce lubricating oil viscosity when cold-starting, improves lubricating oil flow, strengthens lubricant effect
Purpose.
Skilled addressee readily understands that, main oil gallery 1 can be processing oil road, it is possible to for casting oil duct, this
Main oil gallery 1 in bright embodiment preferably uses forging type to make, it is contemplated that the convenience of production, the main oil in the present embodiment
Road 1 is the horizontal oil duct axially in parallel with the bent axle of internal combustion engine, and as shown in Figure 6, lubrication channel 2 is to connect with main oil gallery 1
Vertically oil duct.
After a shutdown, machine oil can be back in oil sump current internal combustion engine by oil duct, when being again started up internal combustion engine,
Lubricating oil pump needs the lubricating oil in oil sump is pumped into lubricating place again, and lubricating oil sets up the time required for oil pressure relatively
Long, the problem of insufficient lubrication when this exacerbates internal combustion engine start, to this end, technical scheme disclosed in the present embodiment has been made to enter one
Step optimizes, and as shown in Figure 6, main oil gallery 1 is less than the top of lubrication channel 2, and intermediate connection is passed through on the top of lubrication channel 2
Oil duct 4 connects with main oil gallery 1.
Owing to the position of main oil gallery 1 is less than lubrication channel 2, therefore when engine shutdown, although the profit in lubrication channel 2
Lubricating oil unloads completely, but the lubricating oil in main oil gallery 1 can be retained in main oil gallery 1, when being therefore again started up internal combustion engine, whole
The oil pressure of individual lubricating system can be set up faster, and this can be effectively improved the lubrication state at internal combustion engine start initial stage.
The effect of intermediate connection oil duct 4 is to introduce in lubrication channel 2 lubricating oil in main oil gallery 1, thus to main shaft
Hold and carry out sufficient lubrication, it is to be understood that intermediate connection oil duct 4 can be to close oil duct, it is possible to for open oil duct, in order to
Making full use of the heat of internal combustion engine cylinder jacket 3, the intermediate connection oil duct 4 in the present embodiment is also open oil duct, and centre connects
Oil canal 4 is formed after being closed by the cylinder sleeve 3 of internal combustion engine and closes oil duct.As shown in Fig. 3 to Fig. 5, cylinder sleeve 3 is not carried out by Fig. 3
Display, in Fig. 3, the intermediate connection oil duct 4 of display is the end face for coordinating with cylinder sleeve 3.
Refer to Fig. 3 to Fig. 5, in order to optimize the technical scheme in above-described embodiment further, the centre in the present embodiment
Connection oil duct 4 is additionally provided with oil storage pool 5 for the one end being connected with lubrication channel 2, and the top of lubrication channel 2 and this oil storage
Pond 5 connects so that taking oil in oil storage pool 5, thus ensures that base bearing is sufficiently lubricated by lubrication channel 2.
In embodiments of the present invention, the top extended line of the bolt for fastening base bearing is referred to as Main bearing bolt stress
Line, the top extended line for the bolt of fastening bolt cylinder cap is referred to as cylinder bolt by the line of force, in the prior art, with main oil gallery
1 lubrication channel 2 being connected is inclined cross design, this lubrication channel 2 and Main bearing bolt by the line of force and cylinder bolt by the line of force
The most crossing, this can significantly reduce body and the structural strength of lubrication channel 2, vertical for the lubrication channel 2 in this present embodiment
Arrange, and be all not desired to hand over by the line of force by the line of force and cylinder bolt with Main bearing bolt, it is true that lubrication channel 2 and main shaft
Holding bolt strained line and cylinder bolt is the most parallel by the line of force, as shown in Figure 6, this can be prevented effectively from lubrication channel 2 to machine
The structural strength of body impacts.
It should be noted that, in the embodiment of the present invention, owing to oil duct uses the mode of casting to be formed, therefore main oil gallery 1 with
And the shape of cross section of each oil duct such as lubrication channel 2 be not limited to circle, can be also polygon or other shapes, as long as
The effect of conveying lubricating oil can be played.
The invention also discloses a kind of internal combustion engine, this internal combustion engine includes main bearing lubrication system, and this main bearing lubrication
System is main bearing lubrication system disclosed in above-mentioned any one embodiment.
Owing to have employed above-mentioned main bearing lubrication system, therefore to have above-mentioned main bearing lubrication system concurrently corresponding for this internal combustion engine
Technological merit, no longer repeats this in present specification.
Above internal combustion engine provided by the present invention and main shaft bearing lubricating system thereof are described in detail.Herein should
Being set forth principle and the embodiment of the present invention by specific case, the explanation of above example is only intended to help reason
Solve method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, without departing from
On the premise of the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into this
In bright scope of the claims.
Claims (9)
1. a main bearing lubrication system for internal combustion engine, including main oil gallery (1) with for lubricating oil is guided into the lubrication of base bearing
Passage (2), it is characterised in that described main oil gallery (1) includes closed section and open segment, and described open segment is by described internal combustion engine
Cylinder sleeve (3) forms the passage for lubricating oil flow after closing.
The main bearing lubrication system of internal combustion engine the most according to claim 1, it is characterised in that described main oil gallery (1) be with
The horizontal oil duct that the bent axle of described internal combustion engine is axially in parallel, described lubrication channel (2) is for vertical with what described main oil gallery (1) connected
Oil duct.
The main bearing lubrication system of internal combustion engine the most according to claim 2, it is characterised in that described main oil gallery (1) is less than
The top of described lubrication channel (2), and the top of described lubrication channel (2) is by intermediate connection oil duct (4) and described main oil gallery
(1) connection.
The main bearing lubrication system of internal combustion engine the most according to claim 3, it is characterised in that described intermediate connection oil duct
(4) it is open oil duct, and described intermediate connection oil duct (4) is formed after cylinder sleeve (3) closing of described internal combustion engine and closes oil duct.
The main bearing lubrication system of internal combustion engine the most according to claim 4, it is characterised in that described intermediate connection oil duct
(4) one end for being connected with described lubrication channel (2) is additionally provided with oil storage pool (5), the top of described lubrication channel (2) and institute
State oil storage pool (5) to connect to take oil.
The main bearing lubrication system of internal combustion engine the most according to claim 2, it is characterised in that be used for fastening described base bearing
The top extended line of bolt be Main bearing bolt by the line of force, the top extended line of the bolt for fastening cylinder cap is cylinder bolt
By the line of force, described lubrication channel (2) and described Main bearing bolt are the most non-intersect by the line of force by the line of force and described cylinder bolt.
7. according to the main bearing lubrication system of the internal combustion engine described in claim 1-6 any one, it is characterised in that described main oil
Road (1) is casting oil duct.
The main bearing lubrication system of internal combustion engine the most according to claim 7, it is characterised in that described main oil gallery (1) is closed
The cross section of section is circular.
9. an internal combustion engine, including main bearing lubrication system, it is characterised in that described main bearing lubrication system is such as claim
Main bearing lubrication system described in 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674203.8A CN106050352B (en) | 2016-08-15 | 2016-08-15 | A kind of internal combustion engine and its main bearing lubrication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674203.8A CN106050352B (en) | 2016-08-15 | 2016-08-15 | A kind of internal combustion engine and its main bearing lubrication system |
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| Publication Number | Publication Date |
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| CN106050352A true CN106050352A (en) | 2016-10-26 |
| CN106050352B CN106050352B (en) | 2019-02-12 |
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| CN201610674203.8A Active CN106050352B (en) | 2016-08-15 | 2016-08-15 | A kind of internal combustion engine and its main bearing lubrication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331858A (en) * | 2017-01-12 | 2018-07-27 | Zf 腓德烈斯哈芬股份公司 | Multi-plate brake |
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| EP1079080A3 (en) * | 1999-08-24 | 2002-07-24 | Reinhard Suttner | Oil cooled internal combustion engine |
| DE10328164A1 (en) * | 2003-06-24 | 2005-01-13 | Daimlerchrysler Ag | Cylindrical crank case for combustion engine, has oil channels for supplying crank-shaft bearings discharging into screw pipes for cylinder head screws. |
| CN102465751A (en) * | 2010-11-17 | 2012-05-23 | 福特环球技术公司 | Hybrid cooling system of an internal combustion engine |
| CN202431383U (en) * | 2011-12-09 | 2012-09-12 | 浙江圣奇运动器械制造有限公司 | High-power single-cylinder gasoline engine |
| CN103046981A (en) * | 2012-12-28 | 2013-04-17 | 优华劳斯汽车系统（上海）有限公司 | System and method for lubricating internal combustion engine |
| CN103046993A (en) * | 2011-10-17 | 2013-04-17 | 福特环球技术公司 | Method for warming an internal combustion engine, and internal combustion engine |
| CN103573374A (en) * | 2012-07-31 | 2014-02-12 | 福特环球技术公司 | Internal combustion engine with oil-cooled cylinder block and method for operating an internal combustion engine of said type |
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| CN2350528Y (en) * | 1998-09-24 | 1999-11-24 | 沈荣军 | Lubricating unit for two-stroke IC engine |
| EP1079080A3 (en) * | 1999-08-24 | 2002-07-24 | Reinhard Suttner | Oil cooled internal combustion engine |
| ATE331125T1 (en) * | 1999-08-24 | 2006-07-15 | Reinhard Suttner | OIL-COOLED INTERNAL COMBUSTION ENGINE |
| DE10328164A1 (en) * | 2003-06-24 | 2005-01-13 | Daimlerchrysler Ag | Cylindrical crank case for combustion engine, has oil channels for supplying crank-shaft bearings discharging into screw pipes for cylinder head screws. |
| CN102465751A (en) * | 2010-11-17 | 2012-05-23 | 福特环球技术公司 | Hybrid cooling system of an internal combustion engine |
| CN103046993A (en) * | 2011-10-17 | 2013-04-17 | 福特环球技术公司 | Method for warming an internal combustion engine, and internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108331858A (en) * | 2017-01-12 | 2018-07-27 | Zf 腓德烈斯哈芬股份公司 | Multi-plate brake |
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| CN106050352B (en) | 2019-02-12 |
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