FR3043739B1 - ROD FOR MOTOR WITH VARIABLE VOLUMETRIC RATIO - Google Patents
ROD FOR MOTOR WITH VARIABLE VOLUMETRIC RATIO Download PDFInfo
- Publication number
- FR3043739B1 FR3043739B1 FR1561046A FR1561046A FR3043739B1 FR 3043739 B1 FR3043739 B1 FR 3043739B1 FR 1561046 A FR1561046 A FR 1561046A FR 1561046 A FR1561046 A FR 1561046A FR 3043739 B1 FR3043739 B1 FR 3043739B1
- Authority
- FR
- France
- Prior art keywords
- connecting rod
- cylinder
- volumetric ratio
- rod
- length
- 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.)
- Active
Links
Classifications
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- 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
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- 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
- F16C7/04—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads with elastic intermediate part of fluid cushion
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- 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
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- 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
- F16C2360/00—Engines or pumps
- F16C2360/22—Internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
L'invention concerne une bielle de longueur variable 1 pour ajuster le rapport volumétrique d'un moteur, comprenant un cylindre 2 solidaire d'une première extrémité E1 de la bielle 1 ; un piston 3 mobile dans le cylindre 2, solidaire de la seconde extrémité E2 de la bielle, et définissant dans le cylindre une première chambre hydraulique 4 dite « haute pression » apte à transmettre les efforts de compression et une seconde chambre hydraulique 5 dite « basse pression » apte à transmettre les efforts de traction; au moins un conduit calibré 6 ; 6a, 6b permettant l'écoulement d'un fluide entre la chambre basse pression 5 et la chambre haute pression 4 ; des moyens de rappel 7 tendant à ramener la bielle à sa longueur nominale. La bielle 1 est remarquable en ce que les moyens de rappel 7 et le conduit calibré 6 sont choisis pour ajuster la longueur de la bielle 1 aux efforts moyens de traction et de compression qui s'y appliquent.The invention relates to a variable-length connecting rod 1 for adjusting the volumetric ratio of an engine, comprising a cylinder 2 integral with a first end E1 of the connecting rod 1; a piston 3 movable in the cylinder 2, integral with the second end E2 of the connecting rod, and defining in the cylinder a first hydraulic chamber 4 called "high pressure" capable of transmitting the compressive forces and a second hydraulic chamber 5 called "low pressure ”capable of transmitting tensile forces; at least one calibrated duct 6; 6a, 6b allowing the flow of a fluid between the low pressure chamber 5 and the high pressure chamber 4; return means 7 tending to return the connecting rod to its nominal length. The connecting rod 1 is remarkable in that the return means 7 and the calibrated duct 6 are chosen to adjust the length of the connecting rod 1 to the average tensile and compressive forces applied to it.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1561046A FR3043739B1 (en) | 2015-11-17 | 2015-11-17 | ROD FOR MOTOR WITH VARIABLE VOLUMETRIC RATIO |
PCT/FR2016/052982 WO2017085408A1 (en) | 2015-11-17 | 2016-11-17 | Rod for a variable compression ratio engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1561046A FR3043739B1 (en) | 2015-11-17 | 2015-11-17 | ROD FOR MOTOR WITH VARIABLE VOLUMETRIC RATIO |
FR1561046 | 2015-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3043739A1 FR3043739A1 (en) | 2017-05-19 |
FR3043739B1 true FR3043739B1 (en) | 2018-06-15 |
Family
ID=55411510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1561046A Active FR3043739B1 (en) | 2015-11-17 | 2015-11-17 | ROD FOR MOTOR WITH VARIABLE VOLUMETRIC RATIO |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR3043739B1 (en) |
WO (1) | WO2017085408A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3079893B1 (en) * | 2018-04-04 | 2020-04-17 | Andre Roland Prieur | VARIABLE LENGTH CONNECTING ROD FOR INTERNAL COMBUSTION ENGINE WITH VARIABLE COMPRESSION RATE |
US11149782B2 (en) * | 2019-07-17 | 2021-10-19 | Hyundai Motor Company | Magnetically-actuated variable-length connecting rod devices and methods for controlling the same |
FR3102814B1 (en) * | 2019-11-04 | 2021-11-26 | MCE 5 Development | Variable length connecting rod for piloted compression ratio engine |
FR3104220B1 (en) * | 2019-12-05 | 2021-12-24 | MCE 5 Development | Telescopic control rod for variable compression ratio engine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2753563A1 (en) * | 1977-12-01 | 1979-06-07 | Daimler Benz Ag | Variable stroke reciprocating piston IC engine - has resilient connecting rod formed by spring=loaded hydraulic arm |
DE19530191A1 (en) * | 1995-08-17 | 1997-02-20 | Daimler Benz Ag | connecting rod |
WO2002010568A1 (en) * | 2000-08-02 | 2002-02-07 | Yadegar Jerry I | Hydraulically adjustable connecting rod for internal combustion engine efficiency |
US8746188B2 (en) * | 2010-03-17 | 2014-06-10 | Larry C. Wilkins | Internal combustion engine with hydraulically-affected stroke |
GB2494718A (en) * | 2011-09-16 | 2013-03-20 | Luciano Danilo Lissiak | Segmented connecting rod with an energy storing element |
DE102015001066B3 (en) * | 2015-01-29 | 2015-10-22 | Armin Brunner | Hydraulically adjustable connecting rod |
-
2015
- 2015-11-17 FR FR1561046A patent/FR3043739B1/en active Active
-
2016
- 2016-11-17 WO PCT/FR2016/052982 patent/WO2017085408A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2017085408A1 (en) | 2017-05-26 |
FR3043739A1 (en) | 2017-05-19 |
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Effective date: 20170519 |
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