CN110617146A - Link mechanism and engine - Google Patents
Link mechanism and engine Download PDFInfo
- Publication number
- CN110617146A CN110617146A CN201910839063.9A CN201910839063A CN110617146A CN 110617146 A CN110617146 A CN 110617146A CN 201910839063 A CN201910839063 A CN 201910839063A CN 110617146 A CN110617146 A CN 110617146A
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- CN
- China
- Prior art keywords
- bearing bush
- connecting rod
- worm
- link
- lower bearing
- 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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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 23
- 238000007906 compression Methods 0.000 abstract description 23
- 230000008859 change Effects 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 6
- 239000002283 diesel fuel Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/06—Adjustable connecting-rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention relates to the technical field of automobile engines, and discloses a connecting rod mechanism and an engine. The connecting rod mechanism comprises a connecting rod and an adjusting assembly, a bearing bush assembly is arranged in a large-end hole of the connecting rod, the bearing bush assembly comprises an upper bearing bush and a lower bearing bush, the wall thickness of the upper bearing bush is gradually thickened from two ends to the middle, and the wall thickness of the lower bearing bush is gradually thinned from two ends to the middle; the adjusting component is arranged on the connecting rod and used for adjusting the circumferential positions of the upper bearing bush and the lower bearing bush. The upper bearing bush and the lower bearing bush in the connecting rod mechanism form an eccentric bearing bush assembly, and the adjusting assembly adjusts the circumferential positions of the upper bearing bush and the lower bearing bush, so that the variable running stroke of the connecting rod is realized, and the requirements of engines with different purposes on compression ratios can be met; in addition, the connecting rod mechanism has the advantages of small structural change to the engine, simple structure, convenient control, good reliability and low cost.
Description
Technical Field
The invention relates to the technical field of automobile engines, in particular to a connecting rod mechanism and an engine.
Background
The Variable Compression Ratio (VCR) technology can be called the last revolution of the engine variable technology, has great influence on the performance of the engine, can greatly reduce the fuel consumption of the engine and improve the emission level. When the internal combustion engine runs at medium and low speed, the air inflow or the oil injection quantity is less, and when the highest pressure or the temperature of a compression stroke or a power stroke is lower, a higher compression ratio is suitable for being adopted; when the internal combustion engine runs at medium and high rotating speeds, the air inflow or the oil injection amount is large, and when the highest pressure or the temperature of a compression stroke or a power stroke is high, a low compression ratio is suitable for being adopted, so that the efficiency of the internal combustion engine can be greatly improved.
The fuel consumption can be reduced by properly increasing the compression ratio under partial load of the commercial vehicle, and the emission level of harmful substances such as NOx and the like can be obviously reduced by reducing the compression ratio under large load, so that the requirement on an aftertreatment device is reduced, and the cost is reduced; for passenger car engines, small loads use large compression ratios, and large loads use small compression ratios to reduce fuel consumption. The variable compression ratio technology has application value for natural gas and diesel dual-fuel engines, when the natural gas is used, knocking can be reduced by using a low compression ratio, the maximum power is improved, when the diesel oil is used, the heat efficiency and the maximum power are improved by using a high compression ratio, and the market demand is very urgent.
The variable compression ratio technology in the prior art includes: the height of the piston is variable, the length of the connecting rod is variable, the position of the crankshaft is variable, the cylinder cover and the cylinder body are relatively displaced, and the additional combustion chamber, the valve mechanism, the gear lever, the multi-connecting rod mechanism and the like are arranged. Wherein the variable height of the piston and the variable length of the connecting rod are the minimum for the structural modification of the traditional engine, and the scheme of the additional combustion chamber has obvious influence on the shape of the combustion chamber, thereby deteriorating the air flow movement and combustion; the driving devices of the two schemes of crankshaft position change and cylinder body and cylinder cover relative displacement need very large power output to realize the position change, thereby increasing the burden of an engine, and greatly changing the original machine or needing redesign; the multi-link mechanism and the gear lever can better realize continuous variable and higher working stability, but the structure is very complex, the motion inertia mass is very large, the multi-link mechanism and the gear lever are not suitable for a traditional machine type, and an engine needs to be redesigned.
Therefore, a new link mechanism needs to be proposed to solve the above problems.
Disclosure of Invention
The invention aims to provide a connecting rod mechanism and an engine, which can meet the requirements of engines with different purposes on compression ratio, and have the advantages of good reliability, simple structure and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a linkage mechanism comprising:
the bearing bush assembly comprises an upper bearing bush and a lower bearing bush, the wall thickness of the upper bearing bush gradually becomes thicker from two ends to the middle, and the wall thickness of the lower bearing bush gradually becomes thinner from two ends to the middle;
and the adjusting assembly is arranged on the connecting rod and used for adjusting the circumferential positions of the upper bearing bush and the lower bearing bush.
Preferably, two ends of the upper bearing shell are in smooth transition connection with two ends of the lower bearing shell.
Preferably, the connecting rod comprises a connecting rod body and a connecting rod cover, and the connecting rod cover is connected with the connecting rod body to form the big head hole.
Preferably, the adjusting assembly includes a worm, the worm is mounted on the connecting rod cover, and the upper bearing bush and the lower bearing bush are circumferentially provided with teeth engaged with the worm.
Preferably, one end of the worm is provided with an adjusting part for adjusting the position of the worm by a tool, and a locking part is detachably connected to the adjusting part.
Preferably, the adjusting part comprises an external thread arranged at the end part of the worm, and the locking piece comprises a locking nut connected with the external thread in a matching manner.
Preferably, the adjusting assembly further comprises a positioning member for limiting the axial movement of the worm, and the positioning member is disposed on the connecting rod cover.
Preferably, the positioning part comprises a positioning hole formed in one side of the connecting rod cover, a positioning pin is arranged in the positioning hole, and the positioning pin arranged on the inner side of the connecting rod cover is inserted between two adjacent worm teeth of the worm.
Preferably, one end of the upper bearing bush and/or the lower bearing bush is provided with a limiting groove along the circumferential direction, and the connecting rod is provided with a limiting part capable of sliding along the limiting groove.
An engine comprises the connecting rod mechanism.
The invention has the beneficial effects that: the upper bearing bush and the lower bearing bush in the connecting rod mechanism form an eccentric bearing bush assembly, and the adjusting assembly adjusts the circumferential positions of the upper bearing bush and the lower bearing bush, so that the variable running stroke of the connecting rod is realized, and the requirements of engines with different purposes on compression ratios can be met; when natural gas is used, knocking can be reduced and the maximum power can be improved by using a low compression ratio; when diesel oil is used, the heat efficiency and the maximum power can be improved by using high compression ratio, and the urgent demand of the market on natural gas or diesel oil dual-fuel engines is met; in addition, the connecting rod mechanism has the advantages of small structural change to the engine, simple structure, convenient control, good reliability and low cost.
Drawings
Fig. 1 is a schematic view of the internal structure of a link mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of a linkage mechanism according to an embodiment of the present invention in a first state;
fig. 3 is a schematic diagram of a second state of the link mechanism according to the embodiment of the present invention.
In the figure:
1. a connecting rod; 11. a connecting rod body; 12. a connecting rod cover; 2. an upper bearing bush; 3. a lower bearing bush; 4. a worm; 41. an adjustment section; 5. a locking member; 6. positioning pins; 7. a limiting groove; 8. and a limiting member.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-3, the present embodiment provides a link mechanism, which includes a link 1, where the link 1 includes a link body 11 and a link cap 12, two ends of the link body 11 are a link small end and a link large end, respectively, a bushing for a piston pin to penetrate through is disposed in a link small end hole of the link 1 small end, a bearing bush assembly is mounted at a link large end of the link body 11, and the link cap 12 is connected with the link body 11 to form a large end hole. A bearing bush assembly is arranged in a large-end hole of the connecting rod 1, a shaft diameter is arranged in the bearing bush assembly, the shaft diameter is in clearance fit with the bearing bush assembly, pressure lubrication and oil film bearing are achieved between the shaft diameter and the bearing bush assembly, and normal work of an engine is guaranteed. Under the transmission action of the connecting rod mechanism, the reciprocating motion of the piston is converted into the rotating motion of the crankshaft, the gas pressure borne by the piston is transmitted to the crankshaft, and the crankshaft outputs mechanical energy to do work.
In this embodiment, as shown in fig. 1, the connecting rod body 11 and the connecting rod cap 12 are connected by bolts, the bearing bush assembly is assembled in the large end hole of the connecting rod, the bearing bush assembly is in clearance fit with the large end hole of the connecting rod 1, and pressure lubrication and oil film bearing are provided between the bearing bush assembly and the large end hole, so as to prevent the occurrence of impact and vibration. The bearing bush component comprises an upper bearing bush 2 and a lower bearing bush 3, the wall thickness of the upper bearing bush 2 becomes thicker gradually from two ends to the middle, and the wall thickness of the lower bearing bush 3 becomes thinner gradually from two ends to the middle; the connecting rod 1 is provided with an adjusting component which is used for adjusting the circumferential positions of the upper bearing bush 2 and the lower bearing bush 3.
In the embodiment, the wall thicknesses of the upper bearing bush 2 and the lower bearing bush 3 are different, so that the upper bearing bush 2 and the lower bearing bush 3 form a bearing bush assembly with eccentricity, and the circumferential positions of the upper bearing bush 2 and the lower bearing bush 3 are adjusted by the adjusting assembly, so that the variable running stroke of the connecting rod 1 is realized, and the requirements of engines with different purposes on compression ratios can be met; when natural gas is used, knocking can be reduced and the maximum power can be improved by using a low compression ratio; when diesel oil is used, the heat efficiency and the maximum power can be improved by using high compression ratio, and the urgent demand of the market on natural gas or diesel oil dual-fuel engines is met; in addition, the connecting rod mechanism has the advantages of small structural change to the engine, simple structure, convenient control, good reliability and low cost.
In this embodiment, the end surfaces of the two ends of the upper bearing bush 2 are correspondingly connected with the end surfaces of the two ends of the lower bearing bush 3, and the inner circle and the outer circle of the joint of the upper bearing bush 2 and the lower bearing bush 3 are both in smooth transition connection. The upper bearing bush 2 and the lower bearing bush 3 are in smooth transition connection, and the circumferential positions of the upper bearing bush 2 and the lower bearing bush 3 are convenient to adjust.
In this embodiment, with continued reference to fig. 1, the adjustment member includes a worm 4, the worm 4 being mounted on a link cap 12. Specifically, the connecting rod cover 12 is provided with a cavity for accommodating the worm 4, and the cavity is communicated with the big end hole. The upper bearing bush 2 and the lower bearing bush 3 are provided with teeth along the circumferential direction, and after the worm 4 is installed in the cavity of the connecting rod cover 12, the worm 4 is meshed with the teeth on the upper bearing bush 2 or the lower bearing bush 3. The position of the worm 4 is adjusted along the axial direction of the worm 4, and the worm 4 drives the upper bearing bush 2 and the lower bearing bush 3 to rotate so as to change the positions of the upper bearing bush 2 and the lower bearing bush 3 in the circumferential direction.
Further, in order to adjust the position of the worm 4, an adjusting portion 41 is disposed at one end of the worm 4, which is disposed outside the connecting rod cover 12, and a special tool is coupled with the adjusting portion 41 to adjust the position of the worm 4. Be equipped with on the worm 4 and can dismantle the retaining member 5 of being connected with regulating part 41, after the circumferential position of adjusting upper bearing bush 2 and lower bearing bush 3, with the position fixation of retaining member 5 with worm 4, effectively avoid worm 4 to take place axial and circumferential displacement.
In this embodiment, the adjusting portion 41 includes the external thread provided at the end of the worm 4, and the locking member 5 includes the locking nut coupled to the external thread, so that the structure is simple, the processing is convenient, the locking effect is good, and the nut is convenient to install on the worm 4.
Further, after the position of the worm 4 is adjusted, in order to further ensure that the position of the worm 4 does not change, as shown in fig. 2, the adjusting assembly further includes a positioning member for limiting the axial movement of the worm 4, and the positioning member is disposed on the connecting rod cover 12. In this embodiment, the positioning element includes a positioning hole, the positioning hole is opened at one side of the connecting rod cover 12, a positioning pin 6 is disposed in the positioning hole, one end of the positioning pin 6 is inserted into the positioning hole, and the positioning pin 6 is disposed between two adjacent worm teeth of the worm 4. After the position of the worm 4 is adjusted, the positioning pin 6 is inserted into the positioning hole, so that the axial and circumferential displacement of the worm 4 is effectively avoided.
In this embodiment, with reference to fig. 2, a limiting groove 7 is formed in one end of the upper bearing bush 2 and/or the lower bearing bush 3 along the circumferential direction, a limiting member 8 capable of sliding along the limiting groove 7 is disposed on the connecting rod 1, and when two ends of the limiting groove 7 are respectively contacted with the limiting member 8, the upper bearing bush 2 and the lower bearing bush 3 cannot rotate along the circumferential direction any more, so as to determine the maximum value or the minimum value of the operating stroke of the connecting rod 1. The operating stroke of the connecting rod 1 is adjusted, thereby switching the compression ratio of the engine. The size of the limiting groove 7 and the position of the limiting groove on the upper bearing shell 2 and the lower bearing shell 3 depend on the maximum value and the minimum value of the compression ratio required by the engine, and are not limited in detail.
In this embodiment, the limiting member 8 is a limiting pin, one end of the limiting pin is mounted on the connecting rod cover 12 of the connecting rod 1, and the other end of the limiting pin is disposed in the limiting groove 7.
In other embodiments, a boss may be further disposed at one end of the upper bearing bush 2 and/or the lower bearing bush 3 along the circumferential direction, and when both ends of the boss are respectively contacted with the limiting member 8, the upper bearing bush 2 and the lower bearing bush 3 cannot rotate along the circumferential direction any more, so as to determine the maximum value or the minimum value of the operation stroke of the connecting rod 1.
The embodiment also provides an engine comprising the link mechanism. When the engine with the connecting rod mechanism is used, the running stroke of a lower connecting rod 1 can be adjusted according to engines with different purposes, and the specific adjusting method is as follows: firstly, a special tool is used for screwing a worm 4 towards the same direction, the worm 4 drives an upper bearing bush 2 and a lower bearing bush 3 to rotate along a circumferential direction, as shown in fig. 2, after one side groove wall of a limiting groove 7 on a bearing bush assembly is contacted with a limiting piece 8, the bearing bush assembly cannot rotate any more, so that the running stroke of a connecting rod 1 reaches the maximum value or the minimum value, after the running stroke of the connecting rod 1 is adjusted, a locking piece 5 is installed on the worm 4, and meanwhile, a positioning pin 6 is inserted into a positioning hole, so that the worm 4 is prevented from axial displacement or circumferential displacement; the worm 4 is screwed towards the opposite direction by using a special tool, the worm 4 drives the upper bearing bush 2 and the lower bearing bush 3 to rotate along the opposite circumferential direction, as shown in fig. 3, after the other side groove wall of the limiting groove 7 on the bearing bush assembly is contacted with the limiting part 8, the bearing bush assembly can not rotate any more, so that the running stroke of the connecting rod 1 reaches the minimum value or the maximum value, after the running stroke of the connecting rod 1 is adjusted, the locking part 5 is installed on the worm 4, and meanwhile, the positioning pin 6 is inserted into the positioning hole, so that the worm 4 is prevented from axial displacement or circumferential displacement.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A linkage mechanism, comprising:
the connecting rod (1), the big end hole of the connecting rod (1) is provided with a bearing bush component, the bearing bush component comprises an upper bearing bush (2) and a lower bearing bush (3), the wall thickness of the upper bearing bush (2) gradually becomes thicker from two ends to the middle, and the wall thickness of the lower bearing bush (3) gradually becomes thinner from two ends to the middle;
the adjusting assembly is arranged on the connecting rod (1) and used for adjusting the circumferential positions of the upper bearing bush (2) and the lower bearing bush (3).
2. A linkage arrangement according to claim 1, characterized in that both ends of the upper shell (2) are in smooth transition with both ends of the lower shell (3).
3. The link mechanism according to claim 1, wherein the link (1) comprises a link body (11) and a link cap (12), and the link cap (12) is connected with the link body (11) to form the large-head hole.
4. A linkage arrangement according to claim 3, characterized in that the adjustment assembly comprises a worm (4), the worm (4) being mounted on the connecting rod cap (12), the upper bearing shell (2) and the lower bearing shell (3) being provided with teeth in the circumferential direction which mesh with the worm (4).
5. The linkage mechanism according to claim 4, characterized in that one end of the worm (4) is provided with an adjusting part (41) for a tool to adjust the position of the worm (4), and a locking member (5) is detachably connected to the adjusting part (41).
6. A linkage mechanism according to claim 5, characterized in that the adjustment portion (41) comprises an external thread opening at the end of the worm screw (4), and the locking element (5) comprises a locking nut in mating connection with the external thread.
7. The linkage arrangement according to claim 4, characterized in that the adjustment assembly further comprises a positioning element for limiting the axial movement of the worm (4), which positioning element is arranged on the connecting rod cap (12).
8. The link mechanism according to claim 7, wherein the positioning element comprises a positioning hole formed in one side of the link cover (12), a positioning pin (6) is disposed in the positioning hole, and the positioning pin (6) disposed inside the link cover (12) is inserted between two adjacent worm teeth of the worm (4).
9. A linkage mechanism according to claim 1, wherein one end of the upper bearing shell (2) and/or the lower bearing shell (3) is provided with a limiting groove (7) along the circumferential direction, and the connecting rod (1) is provided with a limiting member (8) capable of sliding along the limiting groove (7).
10. An engine comprising a linkage mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839063.9A CN110617146B (en) | 2019-09-05 | 2019-09-05 | Link mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839063.9A CN110617146B (en) | 2019-09-05 | 2019-09-05 | Link mechanism and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110617146A true CN110617146A (en) | 2019-12-27 |
| CN110617146B CN110617146B (en) | 2021-05-25 |
Family
ID=68922372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910839063.9A Withdrawn - After Issue CN110617146B (en) | 2019-09-05 | 2019-09-05 | Link mechanism and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617146B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217186A (en) * | 2020-01-21 | 2021-08-06 | 伊希欧1控股有限公司 | Connecting rod of internal combustion engine with variable compression ratio |
| CN114893295A (en) * | 2022-05-25 | 2022-08-12 | 一汽解放汽车有限公司 | Engine connecting rod and engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62248832A (en) * | 1986-04-23 | 1987-10-29 | Toyota Motor Corp | Oil pressure controlling method for variable compression ratio mechanism |
| DE102008031992A1 (en) * | 2008-07-07 | 2010-01-14 | Audi Ag | Eccentric bush adjusting and locking device for use in bearing lug of piston rod of internal combustion engine, has actuating element acting on locking element by spring-loaded pressing element moved transverse to sliding direction |
| CN107035549A (en) * | 2015-07-29 | 2017-08-11 | 上海汽车集团股份有限公司 | Engine, Variable-compressionmechanism mechanism of engine and its control method |
| CN107763061A (en) * | 2016-08-19 | 2018-03-06 | 上海汽车集团股份有限公司 | Automobile, engine, toggle and its link assembly |
| CN110159425A (en) * | 2019-05-21 | 2019-08-23 | 一汽解放汽车有限公司 | A kind of eccentric shaft tile style variable compression ratio device suitable for flexible fuel engine |
-
2019
- 2019-09-05 CN CN201910839063.9A patent/CN110617146B/en not_active Withdrawn - After Issue
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62248832A (en) * | 1986-04-23 | 1987-10-29 | Toyota Motor Corp | Oil pressure controlling method for variable compression ratio mechanism |
| DE102008031992A1 (en) * | 2008-07-07 | 2010-01-14 | Audi Ag | Eccentric bush adjusting and locking device for use in bearing lug of piston rod of internal combustion engine, has actuating element acting on locking element by spring-loaded pressing element moved transverse to sliding direction |
| CN107035549A (en) * | 2015-07-29 | 2017-08-11 | 上海汽车集团股份有限公司 | Engine, Variable-compressionmechanism mechanism of engine and its control method |
| CN107763061A (en) * | 2016-08-19 | 2018-03-06 | 上海汽车集团股份有限公司 | Automobile, engine, toggle and its link assembly |
| CN110159425A (en) * | 2019-05-21 | 2019-08-23 | 一汽解放汽车有限公司 | A kind of eccentric shaft tile style variable compression ratio device suitable for flexible fuel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217186A (en) * | 2020-01-21 | 2021-08-06 | 伊希欧1控股有限公司 | Connecting rod of internal combustion engine with variable compression ratio |
| CN114893295A (en) * | 2022-05-25 | 2022-08-12 | 一汽解放汽车有限公司 | Engine connecting rod and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110617146B (en) | 2021-05-25 |
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