CN108104946A - A kind of lubricating system for variable compression ratio engine - Google Patents
A kind of lubricating system for variable compression ratio engine Download PDFInfo
- Publication number
- CN108104946A CN108104946A CN201711345238.8A CN201711345238A CN108104946A CN 108104946 A CN108104946 A CN 108104946A CN 201711345238 A CN201711345238 A CN 201711345238A CN 108104946 A CN108104946 A CN 108104946A
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- China
- Prior art keywords
- compression ratio
- oil
- pressure
- variable compression
- oil duct
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- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
-
- 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
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses a kind of lubricating systems for variable compression ratio engine, including the engine main oil gallery being connected with becoming displacement oil pump, further include the high-pressure and hydraulic unit being connected with engine main oil gallery；High-pressure and hydraulic unit includes high-voltage electric oil pump, high voltage stabilizing chamber and high-pressure oil duct；Engine main oil gallery is connected with the input terminal of high-voltage electric oil pump, the output terminal of high-voltage electric oil pump is connected with the input terminal of high voltage stabilizing chamber, the output terminal of high voltage stabilizing chamber is connected with high-pressure oil duct, and the delivery outlet of high-pressure oil duct is connected with compression ratio control solenoid valve and Ratios lateral pressing structure of shoe.It is the configuration of the present invention is simple, easy to install, it provides machine oil source by traditional oil pump, high-pressure oil is provided by high-pressure oil passage part, so that compression ratio hydraulic regulator be promoted to work, it ensure that it is changed on conventional engines and less realize the pressure of variable compression ratio engine and lubrication needs.
Description
Technical field
The present invention relates to a kind of lubricating systems, belong to vehicle motor technical field, and in particular to one kind is used for pressure-variable
The lubricating system of compression ratio engine.
Background technology
Many reciprocating engine patents with variable compression ratio are disclosed in recent years, wherein needing by lubrication
System provides the movement of pressure lubrication oil auxiliary pushing variable compressive mechanism, it is also desirable to variable compression ratio be adjusted by lubricating oil
The moving parts of mechanism are lubricated.The present invention discloses a kind of lube system of the reciprocating engine with variable compression ratio
The general layout of system and strategy.According to international monopoly WO98/51911, the description of WO00/31377, WO03/008783, it is known that
For a variety of special machineries of variable compression ratio engine.It can be noticed from above-mentioned patent, variable compression ratio engine
Mechanical driving device include at least one cylinder for having piston movable within, the lower part of piston is fixed to driving member, the biography
Moving part is on the one hand by pinion gear and rolling guideway device cooperating, on the other hand by another big rack with being fixedly connected
Gear cooperating on to connecting rod, so as to be driven between the connecting rod.For described in variable compression ratio engine
Mechanical device further includes at least one and gear cooperating control rack.The gear of above-mentioned compression ratio adjustment device, rack,
The moving components such as bearing are required to individually lubricate.In addition, also need to high pressure liquid pressure oil for adjusting the cylinder of compression ratio.China
Patent CN101375033 discloses a kind of oil spray lubrication and cooling device available for variable compression ratio engine.Mainly
Compression ratio adjustment device is cooled down and lubricated by the device.
Variable compression ratio engine is known to those skilled in the art, it can be noted that presently disclosed money
All without the open lubricant passage way of variable compression ratio engine and hydraulic circuit part in material.This patent in existing tradition by sending out
Increase high-pressure oil passage part on the basis of motivation lubricant passage way, provide machine oil source by traditional oil pump, pass through high-pressure oil passage portion
Divide and high pressure is provided.High-pressure section promotes the work of Ratios hydraulic regulator, low-pressure section lubrication Ratios adjusting mechanism
The parts such as gear.Can be changed on conventional engines it is less come realize the pressure of variable compression ratio engine and lubrication need
It asks.
The content of the invention
In view of the above-mentioned drawbacks of the prior art, present invention aim to solve the deficiency of above-mentioned background technology,
A kind of lubricating system for variable compression ratio engine is provided, in the above-mentioned reciprocating engine with variable compression ratio
In machine, except common lubrication original paper, such as bent axle, camshaft, chain, piston pin needs lubrication are outer, the tune of variable compression ratio
Section mechanism is also required to be lubricated.And the required hydraulic oil of variable compression ratio adjusting mechanism is also provided by engine main oil pump.
In order to solve the above technical problems, present invention employs such a lube systems for variable compression ratio engine
System including the engine main oil gallery being connected with becoming displacement oil pump, is further included described in being connected with the engine main oil gallery
High-pressure and hydraulic unit；The high-pressure and hydraulic unit includes high-voltage electric oil pump, high voltage stabilizing chamber and high-pressure oil duct；The engine
Main oil gallery is connected with the input terminal of the high-voltage electric oil pump, the output terminal of the high-voltage electric oil pump and the high voltage stabilizing chamber
Input terminal connection, the output terminal of the high voltage stabilizing chamber is connected with the high-pressure oil duct, the delivery outlet company of the high-pressure oil duct
It is connected to compression ratio control solenoid valve and Ratios lateral pressing structure of shoe.
In a kind of preferred embodiment of the present invention, the high-pressure oil duct includes a main oil gallery and two branch oil ducts,
The main oil gallery is connected by three valves with the branch oil duct；One oil duct connects with the Ratios lateral pressing structure of shoe
It connects, another described branch oil duct is connected with compression ratio control solenoid valve.
In a kind of preferred embodiment of the present invention, Ratios adjustment gear is provided on the engine main oil gallery
Lubricating nozzle.
In a kind of preferred embodiment of the present invention, the machine oil of the engine main oil gallery flows into the high-voltage electric oil
Pump, the high-voltage electric oil pump are forced into 30 megapascal, and the high pressure oil of the high-voltage electric oil pump flows into the high voltage stabilizing
Chamber.
In a kind of preferred embodiment of the present invention, the Ratios lateral pressing structure of shoe includes mounting seat, the peace
Guide cylinder is connected on dress pedestal, the piston that can be moved along its axis direction is slidably connected in the guide cylinder, it is described
It is provided on piston along its axially extending groove, the peace turns to be provided with the oil duct connected with the groove in pedestal, described
Oil duct states one end that groove connects and is provided with check valve with described.
In a kind of preferred embodiment of the present invention, the oil duct includes main oil gallery and auxiliary oil duct, the auxiliary oil duct one
End is connected with the main oil gallery, the other end is connected with the groove, and check valve is provided in the auxiliary oil duct
In a kind of preferred embodiment of the present invention, the side end face for controlling tooth plate of the piston direction is plane.
In a kind of preferred embodiment of the present invention, spring is provided in the groove of the piston.
In a kind of preferred embodiment of the present invention, flange is provided on the guide cylinder.
In a kind of preferred embodiment of the present invention, the peace turns to be provided with connection boss on pedestal, and the connection is convex
Guide cylinder is set on platform；The auxiliary oil that one end is connected with main oil gallery, the other end is connected with groove is provided on the connection boss
Road.
The beneficial effects of the invention are as follows：It is the configuration of the present invention is simple, easy to install, it is lubricated in existing conventional engines
Increase high-pressure oil passage part on the basis of oil circuit, machine oil source is provided by traditional oil pump, provided by high-pressure oil passage part high
Press oil so as to which compression ratio hydraulic regulator be promoted to work, ensure that it is changing on conventional engines less realize
The pressure and lubrication needs of variable compression ratio engine；Simultaneously by the structure design to Ratios lateral pressing structure of shoe, by
Main oil gallery, piston of the auxiliary one-way valve of oil duct cooperation with piston is set to realize each guide rail of engine in original mounting seat
The stability that actuating unit is kept to run is contacted with each other, while avoids and opens up oil duct oil duct processing work in cylinder block
Sequence is complicated, meanwhile, the present invention is by the way that piston is more conducive to the end face that the lower support face of tooth plate contacts is controlled to be designed as plane
Processing and manufacturing, and increase the contact area in lower support face of the piston with controlling tooth plate so that power transmission is more stable；This hair
It is bright by the way that spring will be set in piston, it is therefore prevented that external high pressure machine oil is unable to normal supply or piston is made when side compression device has leakage
For controlling tooth plate.
Description of the drawings
Fig. 1 is a kind of general arrangement of lubricating system for variable compression ratio engine of the embodiment of the present invention；
Fig. 2 is a kind of high-pressure hydraulics figure of lubricating system for variable compression ratio engine of the embodiment of the present invention；
Fig. 3 is a kind of high-pressure hydraulics figure of lubricating system for variable compression ratio engine of the embodiment of the present invention；
Fig. 4 is a kind of Ratios adjustment gear of lubricating system for variable compression ratio engine of the embodiment of the present invention
Lubricating nozzle；
Fig. 5 is a kind of Ratios adjustment gear of lubricating system for variable compression ratio engine of the embodiment of the present invention
Lubricating nozzle axis surveys view；
Fig. 6 is a kind of Ratios adjustment gear of lubricating system for variable compression ratio engine of the embodiment of the present invention
Lubricating nozzle bottom view；
Fig. 7 is a kind of Ratios adjustment gear of lubricating system for variable compression ratio engine of the embodiment of the present invention
Lubricating nozzle top view；
Fig. 8 is a kind of Ratios lateral pressing structure of shoe of lubricating system for variable compression ratio engine of the embodiment of the present invention
Structure diagram；
Fig. 9 is a kind of Ratios lateral pressing structure of shoe of lubricating system for variable compression ratio engine of the embodiment of the present invention
Inside detailed construction schematic diagram.
In figure：1- becomes displacement oil pump, 2- relief valves, 3- check-valves, 4- oil filter, 5- oil cooler, 6- and increases
Depressor, 7- fuel pumps, 8- piston cooling nozzles, 9- chain tensions, 10-OCV valves, 11- lubricating oil pump feedback oil circuit, 12- lubricating oil pump
Control solenoid valve, 13- piston cooling nozzles control valve, 14- engine oil pressure ＆ temperature sensors, 15- high-pressure and hydraulics unit, 16-
Compression ratio control solenoid valve, 17- lateral surface compressings device, 18- Ratios adjustment gears lubricating nozzle, 20- high-voltage electrics oil pump,
21- high voltage stabilizings chamber, 22- high-pressure oil ducts, 24- compression ratios control solenoid valve.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
By a kind of description of the invention lubricating system for variable compression ratio engine shown in the drawings, including with change
What displacement oil pump 1 (become displacement oil pump and provide engine oil pressure and oil flow rate into entire lubricating system) connected mobilizes owner oily
Road 19 (becomes displacement oil pump 1 according to engine load and the required pressure of rotating speed supply engine and flow, becomes discharge capacity machine oil
The machine oil of 1 supply of pump is filtered by oil filter 4, is then cooled down by oil cooler 5, into engine main oil gallery
19) the high-pressure and hydraulic unit 15 being connected with engine main oil gallery 19, is further included；High-pressure and hydraulic unit 15 includes high-voltage electric oil pump
20th, high voltage stabilizing chamber 21 and high-pressure oil duct 22；Engine main oil gallery 19 is connected with the input terminal of high-voltage electric oil pump 20, high-voltage electricity
The output terminal of dynamic oil pump 20 is connected with the input terminal of high voltage stabilizing chamber 21, output terminal and the high-pressure oil duct 22 of high voltage stabilizing chamber 21
Connection, the delivery outlet of high-pressure oil duct 22 are connected with compression ratio control solenoid valve 24 and Ratios lateral pressing structure of shoe 26.High-pressure oil duct
22 are connected including a main oil gallery 22-1 and two branch oil duct 22-2, main oil gallery 22-1 by three valves with branch oil duct 22-2；One
A branch oil duct 22-2 is connected with Ratios lateral pressing structure of shoe 26 (supplies the tooth that enough pressure oil is used for Ratios adjusting mechanism
The compression of plate and gear), another branch oil duct 22-2 and compression ratio control solenoid valve 24 be connected (variable compression ratio it is past
The variable compression ratio of compound engine needs high-pressure and hydraulic mechanism auxiliary to be compressed than adjusting compression ratio control solenoid valve
Switch control the whether logical machine oil of compression ratio master cylinder, the final work for controlling engine compression ratio adjusting mechanism adjusts hair
Motivation compression ratio).Ratios adjustment gear lubricating nozzle 27 is provided on engine main oil gallery 19, and (it can ensure variable compression
Than adjusting mechanism gear and the favorable lubricating property of tooth plate), Ratios adjustment gear lubricating nozzle 27 include at least one into
Hydraulic fluid port 27-2 and two jet 27-1, two jet 27-1 are arranged symmetrically compared with oil inlet 27-2.Engine main oil gallery
19 machine oil flows into high-voltage electric oil pump 20, and high-voltage electric oil pump 20 is forced into 30 megapascal, the height of high-voltage electric oil pump 20
Pressure oil flows into high voltage stabilizing chamber 21.The Ratios lateral pressing structure of shoe of the present invention includes mounting seat 31, is connected in mounting seat 31
There is guide cylinder 32, be slidably connected with and can be provided on piston 33 along the piston 33 that its axis direction moves in guide cylinder 32
The groove 38 axially extending along its, peace turn to be provided with 35 external high pressure machine oil of main oil gallery for oiling on pedestal 31 from oil duct 35
Introducing and auxiliary oil duct 36, auxiliary 36 one end of oil duct is connected with main oil gallery 35, the other end is connected with groove 38, is set in auxiliary oil duct 36
There is check valve 37, machine oil can only be out of, oil duct 35 flows to piston groove 38, it is impossible to reverse flow.The control tooth of 33 direction of piston
One side end face of plate is plane.External high pressure machine oil to be prevented to be unable to normal supply or side compression device has a leakage, piston 33 it is recessed
Spring 41 is provided in slot 38,41 continuous action of spring is on piston 33.Flange 42 is provided on guide cylinder 32, in cylinder
Axially position on body 1.Auxiliary oil duct 36 and groove 38 are coaxially arranged.It is provided between the inner wall of guide cylinder 32 and the outer wall of piston 33
Second sealing ring 40.Peace turns to be provided with connection boss 34 on pedestal 31, connects and is set with guide cylinder 32 on boss 34.Connect boss
The auxiliary oil duct 36 that one end is connected with main oil gallery 35, the other end is connected with groove 38 is provided on 34.The inner wall of guide cylinder 32 and company
It connects and is provided with the first sealing ring 39 between the outer wall of boss 34.Peace turns to be provided with the connection boss of multiple parallel arrangements on pedestal 31
34。
It should be appreciated that these are only the specific embodiment of the present invention, but protection scope of the present invention is not limited to
In this, any those skilled in the art disclosed herein technical scope in, the variation that can readily occur in or replace
It changes, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of lubricating system for variable compression ratio engine, including mobilizing owner with what change displacement oil pump (1) was connected
Oil duct (19), it is characterised in that：Further include the high-pressure and hydraulic unit (15) being connected with the engine main oil gallery (19)；Institute
Stating high-pressure and hydraulic unit (15) includes high-voltage electric oil pump (20), high voltage stabilizing chamber (21) and high-pressure oil duct (22)；It is described to start
Owner's oil duct (19) is connected with the input terminal of the high-voltage electric oil pump (20), the output terminal of the high-voltage electric oil pump (20) with
The input terminal connection of the high voltage stabilizing chamber (21), output terminal and the high-pressure oil duct (22) of the high voltage stabilizing chamber (21) connect
It connects, the delivery outlet of the high-pressure oil duct (22) is connected with compression ratio control solenoid valve (24) and Ratios lateral pressing structure of shoe (26).
2. a kind of lubricating system for variable compression ratio engine according to claim 1, it is characterised in that：The height
Pressure oil road (22) includes a main oil gallery (22-1) and two branch oil ducts (22-2), the main oil gallery (22-1) by three valves and
Branch oil duct (22-2) connection；One oil duct (22-2) is connected with the Ratios lateral pressing structure of shoe (26), described
Another branch oil duct (22-2) is connected with compression ratio control solenoid valve (24).
3. a kind of lubricating system for variable compression ratio engine according to claim 1, it is characterised in that：The hair
Ratios adjustment gear lubricating nozzle (27) is provided on motivation main oil gallery (19).
4. a kind of lubricating system for variable compression ratio engine according to claim 1, it is characterised in that：The hair
The machine oil of motivation main oil gallery (19) flows into the high-voltage electric oil pump (20), and the high-voltage electric oil pump (20) is forced into 30
Megapascal, the high pressure oil of the high-voltage electric oil pump (20) flow into the high voltage stabilizing chamber (21).
5. a kind of lubricating system for variable compression ratio engine according to claim 1, it is characterised in that：The change
Compression ratio lateral pressing structure of shoe (26) includes mounting seat (31), and guide cylinder (32) is connected on the mounting seat (31), described to lead
It can be provided with to being slidably connected in cylinder (32) along it on the piston (33) along the piston (33) that its axis direction moves
Axially extending groove (38), the peace turn to be provided with the oil duct connected with the groove (38), the oil duct in pedestal (31)
It states one end that groove (38) connects with described and is provided with check valve (37).
6. a kind of lubricating system for variable compression ratio engine according to claim 5, it is characterised in that：The oil
Road include main oil gallery (35) and auxiliary oil duct (36), described auxiliary oil duct (36) one end is connected with the main oil gallery (35), the other end and
Groove (38) connection, the auxiliary oil duct (36) is interior to be provided with check valve (37).
7. a kind of lubricating system for variable compression ratio engine according to claim 5, it is characterised in that：The work
The side end face for controlling tooth plate of plug (33) direction is plane.
8. a kind of lubricating system for variable compression ratio engine according to claim 5, it is characterised in that：The work
It fills in the groove (38) of (33) and is provided with spring (41).
9. a kind of lubricating system for variable compression ratio engine according to claim 5, it is characterised in that：It is described to lead
Flange (42) is provided on cylinder (32).
10. a kind of lubricating system for variable compression ratio engine according to claim 5, it is characterised in that：It is described
Peace turns to be provided with connection boss (34) on pedestal (31), and guide cylinder (32) is set on the connection boss (34)；The connection
The auxiliary oil duct (36) that one end is connected with main oil gallery (35), the other end is connected with groove (38) is provided on boss (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345238.8A CN108104946B (en) | 2017-12-15 | 2017-12-15 | Lubricating system for variable compression ratio engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345238.8A CN108104946B (en) | 2017-12-15 | 2017-12-15 | Lubricating system for variable compression ratio engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108104946A true CN108104946A (en) | 2018-06-01 |
| CN108104946B CN108104946B (en) | 2020-04-03 |
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ID=62217157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711345238.8A Active CN108104946B (en) | 2017-12-15 | 2017-12-15 | Lubricating system for variable compression ratio engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN108104946B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736946A (en) * | 2019-03-13 | 2019-05-10 | 张薛宏 | A kind of variable compression ratio of engines system and control method |
| CN110017189A (en) * | 2019-04-26 | 2019-07-16 | 重庆长安汽车股份有限公司 | A kind of engine lubrication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998051911A1 (en) * | 1997-05-09 | 1998-11-19 | Vianney Rabhi | Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation |
| WO2000031377A1 (en) * | 1998-11-26 | 2000-06-02 | Vianney Rabhi | Mechanical transmission device for engine with variable volume displacement |
| WO2003008783A1 (en) * | 2001-07-18 | 2003-01-30 | Vianney Rabhi | Variable cylinder capacity engine |
| CN101375039A (en) * | 2006-01-26 | 2009-02-25 | 维亚内·拉比 | Engine block and cylinder head assembly for a variable compression ratio engine |
| CN101755112A (en) * | 2007-07-19 | 2010-06-23 | 维亚内·拉比 | Hydraulic supply for a variable compression ratio engine |
| CN101375040B (en) * | 2006-01-26 | 2011-05-11 | 维亚内·拉比 | Pressure device for a variable compression ratio engine |
-
2017
- 2017-12-15 CN CN201711345238.8A patent/CN108104946B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998051911A1 (en) * | 1997-05-09 | 1998-11-19 | Vianney Rabhi | Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation |
| WO2000031377A1 (en) * | 1998-11-26 | 2000-06-02 | Vianney Rabhi | Mechanical transmission device for engine with variable volume displacement |
| WO2003008783A1 (en) * | 2001-07-18 | 2003-01-30 | Vianney Rabhi | Variable cylinder capacity engine |
| CN101375039A (en) * | 2006-01-26 | 2009-02-25 | 维亚内·拉比 | Engine block and cylinder head assembly for a variable compression ratio engine |
| CN101375040B (en) * | 2006-01-26 | 2011-05-11 | 维亚内·拉比 | Pressure device for a variable compression ratio engine |
| CN101755112A (en) * | 2007-07-19 | 2010-06-23 | 维亚内·拉比 | Hydraulic supply for a variable compression ratio engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736946A (en) * | 2019-03-13 | 2019-05-10 | 张薛宏 | A kind of variable compression ratio of engines system and control method |
| CN110017189A (en) * | 2019-04-26 | 2019-07-16 | 重庆长安汽车股份有限公司 | A kind of engine lubrication system |
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| Publication number | Publication date |
|---|---|
| CN108104946B (en) | 2020-04-03 |
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