IT1244948B - Stantuffo tuffante per motori a combustione interna. - Google Patents
Stantuffo tuffante per motori a combustione interna.Info
- Publication number
- IT1244948B IT1244948B ITRM910194A ITRM910194A IT1244948B IT 1244948 B IT1244948 B IT 1244948B IT RM910194 A ITRM910194 A IT RM910194A IT RM910194 A ITRM910194 A IT RM910194A IT 1244948 B IT1244948 B IT 1244948B
- Authority
- IT
- Italy
- Prior art keywords
- oil
- plunger
- piston
- decompression
- hole
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 230000006837 decompression Effects 0.000 abstract 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/08—Constructional features providing for lubrication
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/203—Oil-scraping rings
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/206—One-piece oil-scraping rings
-
- 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
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Uno stantuffo tuffante per un motore a combustione interna con più anelli di compressione e con un anello raschiaolio disposto direttamente al di sotto presenta fori di decompressione che dalla scanalatura dell'anello raschiaolio portano nell'interno dello stantuffo e, al di sotto dell'anello raschiaolio presenta una scanalatura per la raccolta dell'olio con fori di deviazione dell'olio che portano nell'interno dello stantuffo disposti in ciascuno dei due quadranti davanti al lati frontali del perno dello stantuffo. Per ottenere un'alimentazione sufficiente di olio per gli anelli elastici e per la superficie esterna del pistone su tutta la sua periferia, i fori di decompressione sono previsti soltanto nella zona mediana dei due quadranti davanti ai lati longitudinali del perno del pistone. La scanalatura di raccolta dell'olio si estende intorno allo stantuffo. In ogni foro di decompressione è previsto un segmento di diametro minore. Inoltre, almeno un foro di decompressione e almeno un foro di deviazione dell'olio sboccano in un foro di deviazione comune che si estende in direzione longitudinale dello stantuffo e che dal lato inferiore dello stantuffo porta all'aria aperta.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4011535A DE4011535A1 (de) | 1990-04-10 | 1990-04-10 | Tauchkolben fuer eine brennkraftmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
ITRM910194A0 ITRM910194A0 (it) | 1991-03-25 |
ITRM910194A1 ITRM910194A1 (it) | 1992-09-25 |
IT1244948B true IT1244948B (it) | 1994-09-13 |
Family
ID=6404118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITRM910194A IT1244948B (it) | 1990-04-10 | 1991-03-25 | Stantuffo tuffante per motori a combustione interna. |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP3065118B2 (it) |
DE (1) | DE4011535A1 (it) |
FI (1) | FI104111B (it) |
FR (1) | FR2660699B1 (it) |
IT (1) | IT1244948B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19541016A1 (de) * | 1995-11-03 | 1997-05-07 | Hermann Dr Ing Golle | Ölabstreifeinrichtung für Kolben von Kraft- und Arbeitsmaschinen |
JP4333693B2 (ja) * | 2006-05-22 | 2009-09-16 | トヨタ自動車株式会社 | 内燃機関用ピストンおよび内燃機関 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB456967A (en) * | 1936-07-08 | 1936-11-18 | Gaston Chevrollier | Improved oiling arrangement for pistons of internal combustion engines or other engines or compressors |
GB1096655A (en) * | 1965-08-24 | 1967-12-29 | Ruston & Hornsby Ltd | Gaseous lubrication, sealing and centring of pistons |
FI65477C (fi) * | 1979-02-16 | 1984-05-10 | Waertsilae Oy Ab | Smoerjsystem |
DE3428007A1 (de) * | 1984-07-28 | 1986-02-06 | M.A.N.-B & W Diesel GmbH, 8900 Augsburg | Kolben mit spezieller formgebung und kolbenringbestueckung |
DE3606269C1 (en) * | 1986-02-27 | 1987-08-13 | Man B & W Diesel Gmbh | Lubrication for a piston of a reciprocating piston internal combustion engine |
-
1990
- 1990-04-10 DE DE4011535A patent/DE4011535A1/de active Granted
-
1991
- 1991-03-25 JP JP3086315A patent/JP3065118B2/ja not_active Expired - Lifetime
- 1991-03-25 IT ITRM910194A patent/IT1244948B/it active IP Right Grant
- 1991-04-09 FI FI911697A patent/FI104111B/fi active
- 1991-04-09 FR FR9104288A patent/FR2660699B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ITRM910194A1 (it) | 1992-09-25 |
JP3065118B2 (ja) | 2000-07-12 |
FR2660699A1 (fr) | 1991-10-11 |
ITRM910194A0 (it) | 1991-03-25 |
FI911697A0 (fi) | 1991-04-09 |
DE4011535C2 (it) | 1992-01-30 |
FR2660699B1 (fr) | 1992-11-20 |
FI104111B1 (fi) | 1999-11-15 |
DE4011535A1 (de) | 1991-10-17 |
JPH04228859A (ja) | 1992-08-18 |
FI911697A (fi) | 1991-10-11 |
FI104111B (fi) | 1999-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19990226 |