EP0116490A1 - Piston pour moteur a combustion interne - Google Patents
Piston pour moteur a combustion interne Download PDFInfo
- Publication number
- EP0116490A1 EP0116490A1 EP84400052A EP84400052A EP0116490A1 EP 0116490 A1 EP0116490 A1 EP 0116490A1 EP 84400052 A EP84400052 A EP 84400052A EP 84400052 A EP84400052 A EP 84400052A EP 0116490 A1 EP0116490 A1 EP 0116490A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- chamber
- ribs
- define
- internal combustion
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/18—Pistons having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
Definitions
- longitudinal ribs in the closed annular chamber situated between the piston and its internal lining, said ribs extending over most of the height of the chamber and being alternately inclined in one direction and then in the other. relative to the axis of the piston, so as to define, in said chamber, a succession of adjacent longitudinal channels whose section increases (or decreases) from one end of the piston towards the other.
- the cylindrical piston 1 has an annular portion 2 provided with fins 3.
- the latter is intended, as is known , to constitute the engine sweep pump and operates in a chamber at a relatively low temperature.
- a cylindrical liner 4 coaxial with the piston.
- a shoulder 4b of the liner 4 allows its attachment to the annular portion 2 of the piston.
- the outside diameter of the liner 4 is less than the inside diameter of the piston 1 so that the assembly defines an annular chamber 5 which is sealed from the outside.
- Chamber 5 will not, in general, be limited to the strict annular volume defined by the piston and its lining; on the contrary, it is preferable to close the liner 4 with a bottom 4a coming at some distance from the bottom of the piston which moves in the combustion chamber of the engine.
- the closed chamber 5 has an annular part and a substantially flat volume (5a) between the bottoms 4a and the.
- ribs 6 which are substantially longitudinal. They extend, as can be seen, over almost the entire height of the piston but stop at some distance from the shoulder 4b. On the side of the bottom 4a the ribs extend substantially to this bottom but, in the absence of flat volume 5a, should stop some distance from the bottom of the piston.
- the ribs 6 have come from manufacture with the lining 4 and it can be seen in FIG. 2 that they are slightly inclined relative to the axis of the lining, alternately in one direction then in the other.
- these ribs 6, very slightly helical, define adjacent longitudinal channels 7 throughout the annular part of the chamber 5.
- all the channels 7 will be identical and their section will increase (or decrease) from one of the ends of the piston towards each other.
- cooling fluid oil, sodium, etc.
- the heat to be removed comes from the combustion chamber and is transmitted to the piston 1 on the side of its bottom 1a.
- the piston 1 moves in the direction of the arrow F and the coolant which had collected in the chamber 5a on the bottom side la is first entrained in the movement of the piston.
- the cooling fluid continues its movement by inertia in the direction of the arrow F, mainly using those of the channels 7 whose section is the greatest in the vicinity of the bottom of the piston.
- the speed of the fluid increases rapidly, in the channels 7, the section of which decreases and becomes very high when it reaches the shoulder 4b.
- the heat transfer then takes place satisfactorily between the cooling fluid and the annular portion 2 cooled by the purge air, thanks in particular to the fins 3.
- the invention can be implemented on most pistons for internal combustion engines, in particular on those whose cooling is difficult to obtain by known means.
- the ribs 6 are produced at the same time as the jacket 4, it is obvious that these ribs could be produced at the same time as the piston 1.
- the piston and the jacket 4 are generally constituted by molded parts then machined, which allows easy production of the ribs.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8301236 | 1983-01-27 | ||
FR8301236A FR2540183A1 (fr) | 1983-01-27 | 1983-01-27 | Piston pour moteur a combustion interne |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0116490A1 true EP0116490A1 (fr) | 1984-08-22 |
Family
ID=9285332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84400052A Withdrawn EP0116490A1 (fr) | 1983-01-27 | 1984-01-11 | Piston pour moteur a combustion interne |
Country Status (5)
Country | Link |
---|---|
US (1) | US4513697A (es) |
EP (1) | EP0116490A1 (es) |
JP (1) | JPS59145343A (es) |
ES (1) | ES285507Y (es) |
FR (1) | FR2540183A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6929455B2 (en) | 2002-10-15 | 2005-08-16 | Tecumseh Products Company | Horizontal two stage rotary compressor |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992014044A1 (en) * | 1991-01-22 | 1992-08-20 | Zherebtsov Viktor Veniaminovic | One-cycle engine |
KR20050039320A (ko) * | 2003-10-24 | 2005-04-29 | 현대자동차주식회사 | 내연기관 엔진용 피스톤 |
US6904876B1 (en) * | 2004-06-28 | 2005-06-14 | Ford Global Technologies, Llc | Sodium cooled pistons for a free piston engine |
SE535330C2 (sv) * | 2010-12-09 | 2012-06-26 | Peter Nyberg | Högtemperaturkolv |
DE102011114105A1 (de) * | 2010-12-18 | 2012-06-21 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
US8544441B2 (en) * | 2011-08-04 | 2013-10-01 | Federal-Mogul Ignition Company | Piston including a pair of cooling chambers |
JP2021102928A (ja) * | 2019-12-24 | 2021-07-15 | トヨタ自動車株式会社 | ピストン |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR452835A (fr) * | 1913-01-02 | 1913-05-23 | Hans Windhoff | Dispositif de refroidissement des cylindres pour moteurs à combustion |
DE396902C (de) * | 1921-06-10 | 1924-06-11 | Jacques Francois Felies | Kuehlwassermantel, insbesondere fuer Brennkraftmaschinen |
CH113422A (de) * | 1925-02-13 | 1926-03-16 | Otto Philipp | Kolbenkühleinrichtung für Verbrennungskraftmaschinen. |
US1608811A (en) * | 1923-06-09 | 1926-11-30 | John T Rauen | Piston-cooling system |
US1682357A (en) * | 1928-08-28 | sperry | ||
FR2441073A1 (fr) * | 1978-11-13 | 1980-06-06 | Moiroux Auguste | Compresseur a action directe equipe d'un piston monobloc |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US195585A (en) * | 1877-09-25 | Improvement in gas-engines | ||
US942140A (en) * | 1906-11-02 | 1909-12-07 | William R Donaldson | Explosive-engine. |
GB191015216A (en) * | 1909-11-22 | 1910-10-27 | Fried Krupp Germaniawerft Ag | Improvements in and relating to Piston Cooling Devices for Internal Combustion Engines. |
US3314402A (en) * | 1965-06-03 | 1967-04-18 | Rostock Dieselmotoren | Apparatus for cooling a piston |
US4013047A (en) * | 1975-12-12 | 1977-03-22 | General Motors Corporation | Engine with combustion wall temperature control means |
US4470375A (en) * | 1983-06-09 | 1984-09-11 | Automotive Engine Associates | Fully hydrodynamic piston ring and piston assembly with elastomerically conforming geometry and internal cooling |
-
1983
- 1983-01-27 FR FR8301236A patent/FR2540183A1/fr active Granted
-
1984
- 1984-01-11 EP EP84400052A patent/EP0116490A1/fr not_active Withdrawn
- 1984-01-23 US US06/573,211 patent/US4513697A/en not_active Expired - Fee Related
- 1984-01-25 ES ES1984285507U patent/ES285507Y/es not_active Expired
- 1984-01-26 JP JP59013197A patent/JPS59145343A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1682357A (en) * | 1928-08-28 | sperry | ||
FR452835A (fr) * | 1913-01-02 | 1913-05-23 | Hans Windhoff | Dispositif de refroidissement des cylindres pour moteurs à combustion |
DE396902C (de) * | 1921-06-10 | 1924-06-11 | Jacques Francois Felies | Kuehlwassermantel, insbesondere fuer Brennkraftmaschinen |
US1608811A (en) * | 1923-06-09 | 1926-11-30 | John T Rauen | Piston-cooling system |
CH113422A (de) * | 1925-02-13 | 1926-03-16 | Otto Philipp | Kolbenkühleinrichtung für Verbrennungskraftmaschinen. |
FR2441073A1 (fr) * | 1978-11-13 | 1980-06-06 | Moiroux Auguste | Compresseur a action directe equipe d'un piston monobloc |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6929455B2 (en) | 2002-10-15 | 2005-08-16 | Tecumseh Products Company | Horizontal two stage rotary compressor |
Also Published As
Publication number | Publication date |
---|---|
JPS59145343A (ja) | 1984-08-20 |
FR2540183A1 (fr) | 1984-08-03 |
US4513697A (en) | 1985-04-30 |
ES285507Y (es) | 1986-05-01 |
FR2540183B1 (es) | 1985-05-10 |
ES285507U (es) | 1985-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0041416B1 (fr) | Piston de machine à pistons alternatifs, notamment de moteur à combustion interne | |
EP0116490A1 (fr) | Piston pour moteur a combustion interne | |
EP0100713A1 (fr) | Organe d'étanchéité pour un dispositif de contrôle d'un circuit de gaz d'une chambre de combustion | |
FR2540562A1 (fr) | Piston de moteur a combustion interne | |
EP0258119B1 (fr) | Piston pour machines alternatives à compression de fluide gazeux et machines équipées de tels pistons | |
EP0125178A1 (fr) | Piston en matériaux réfractaires, notamment pour moteurs à allumage par compression | |
CH639174A5 (fr) | Piston alternatif. | |
FR2646885A1 (fr) | Accouplement elastique, pour volant d'inertie a amortissement visqueux et a friction | |
FR2698936A1 (fr) | Dispositif pour compenser des à-coups en rotation. | |
FR2696518A1 (fr) | Volant d'inertie à deux masses. | |
EP0051605A1 (fr) | Amplificateur de puissance pour moteurs thermiques ou autres | |
EP0372298B1 (fr) | Préchambre de combustion à isolation thérmique variable | |
WO1992012332A1 (fr) | Moteur a deux temps a balayage retarde du cylindre | |
JPH0246771B2 (es) | ||
FR2534343A1 (fr) | Perfectionnements aux ensembles pistons-bielles et a leurs composants | |
FR2606103A1 (fr) | Bielle de moteur a explosions | |
FR2519082A1 (fr) | Piston assemble a tete | |
FR2496166A1 (fr) | Moteur a deux temps avec distribution d'aspiration par deux soupapes a disques | |
BE384932A (fr) | Procédé et dispositifs perfectionnés pour effectuer la combustion dans les moteurs à combustion interne du type à injection de combustible liquide et à allumage par compression | |
FR2641577A1 (fr) | Procede pour empecher la rotation des segments de pistons | |
FR2579674A1 (fr) | Piston compose, refroidi par l'huile, pour moteurs a combustion interne a pistons alternatifs | |
EP0341285B1 (fr) | Methode destinee a ameliorer le glissement des pistons alternatifs des moteurs thermiques et dispositif pour sa mise en oeuvre | |
FR2654157A1 (fr) | Cylindre d'un moteur alternatif a combustion interne. | |
BE568017A (es) | ||
FR2576060A2 (fr) | Dispositif de controle de la circulation des gaz de et/ou vers une chambre de combustion de moteur a combustion interne |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LI LU NL |
|
17P | Request for examination filed |
Effective date: 19841222 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19860401 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MOIROUX, AUGUSTE |