DK181438B1 - Large turbocharged two-stroke internal combustion engine with improved piston cooling - Google Patents
Large turbocharged two-stroke internal combustion engine with improved piston cooling Download PDFInfo
- Publication number
- DK181438B1 DK181438B1 DKPA202270305A DKPA202270305A DK181438B1 DK 181438 B1 DK181438 B1 DK 181438B1 DK PA202270305 A DKPA202270305 A DK PA202270305A DK PA202270305 A DKPA202270305 A DK PA202270305A DK 181438 B1 DK181438 B1 DK 181438B1
- Authority
- DK
- Denmark
- Prior art keywords
- valve
- engine
- movable
- pressure
- piston
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 title abstract description 43
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims 2
- 239000005068 cooling lubricant Substances 0.000 claims 1
- 238000005461 lubrication Methods 0.000 abstract description 37
- 239000007789 gas Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 11
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- F01P3/10—Cooling by flow of coolant through pistons
-
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
-
- 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
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- 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
- F16C5/00—Crossheads; Constructions of connecting-rod heads or piston-rod connections rigid with crossheads
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Check Valves (AREA)
Claims (8)
1. Stor, turboladet, totaktsforbrændingsmotor (100) med længdeskylning af typen med krydshoved, hvilken motor (100) omfatter: mindst én cylinderforing (1) med skylleporte (18) ved dens nedre ende og en udstødningsventil (4) ved dens øvre ende, et frem- og tilbagegående stempel (10) i den mindst ene cylinderforing (1), hvilket frem- og tilbagegående stempel (10) er forbundet med et frem- og tilbagegående krydshoved (9) via en stempelstang (15), en kilde (40) af tryksat og afkølende smøremiddel, et teleskopisk rør (30), der fluidmæssigt forbinder kilden med en indløbsport på krydshovedet (9), en ledning (36), der strækker sig fra indløbsporten til stemplet (10), hvilken ledning (36) fortrinsvis strækker sig gennem krydshovedet (9) og gennem stempelstangen (15), og en ventil (33), der er konfigureret til at muliggøre strømning af køle- og smøremiddel fra kilden (40) til det teleskopiske rør (30) og forhindre eller mindst begrænse strømning af køle- og smøremidlet fra det teleskopiske rør (30) til kilden (40), hvori ventilen (33) omfatter et bevægeligt ventilelement (35), der er indrettet til at kunne bevæge sig mellem en lukket eller begrænset position på et første sæde og en åben position på et andet sæde, kendetgnet ved at det bevægelige ventilelement (35) alene påvirkes til den åbne position ved tyngdekraft.
2. Motor (100) ifølge krav 1, hvor den mindst ene cylinderforing (1) understøttes af en cylinderramme (29), det teleskopiske rør (30) omfatter et statisk rør (31), der er fysisk forbundet med cylinderrammen (29), og et bevægeligt rør (32), der er fysisk forbundet med krydshovedet (9), fortrinsvis fysisk forbundet med en føringssko (29) til krydshovedet (9).
3. Motor (100) ifølge krav 2 hvor ventilen (33) er anbragt opstrøms for eller i indløbet til det statiske rør (31).
DK 181438 B1 20
4. Motor (100) ifelge et hvilket som helst af kravene 1 til 3, hvor det bevægelige ventilelement (35) modtages i et hulrum i et legeme (37, 39) af ventilen (33), og hvor det bevægelige ventilelements (35) form kombineret med hulrummets form tilvejebringer dæmpning af det bevægelige ventilelements (35) bevægelse mod det første sæde og/eller andet sæde.
5. Motor (100) ifølge et hvilket som helst af kravene 1 til 4, hvor ventilen (33) er en kontraventil.
6. Motor (100) ifølge et hvilket som helst af kravene 1 til 5, hvor ventilen (33) er en elektronisk styret ventil, der åbnes og lukkes eller begrænses som reaktion på et signal fra en styreenhed (530).
7. Motor (100) ifølge krav 6, hvor styreenheden (50) informeres om det bevægelige rørs (32) position og er konfigureret til at time åbningen og lukningen eller begrænsningen af den elektronisk styrede ventil som en funktion af det bevægelige rørs (32) position, hvor styreenheden (50) fortrinsvis er konfigureret til at lukke eller begrænse den elektronisk styrede ventil, når det teleskopiske rør (30) sammentrækkes, og konfigureret til at åbne den elektronisk styrede ventil, når det teleskopiske rør udvides.
8. Motor (100) ifølge krav 7, hvor styreenheden (50) informeres om trykket i det teleskopiske rør (30), og hvor styreenheden (530) er konfigureret til at lukke eller begrænse den elektronisk styrede ventil, når trykket er over en tærskel, eller hvor styreenheden (50) informeres om trykket i det teleskopiske rør (30) og informeres om trykket tilført af kilden (40), og hvor styreenheden (50) er konfigureret til at lukke eller begrænse den elektronisk styrede ventil, når trykket i det teleskopiske rør (30) er på eller større end trykket tilført af kilden (40) eller et måltryk, og hvor styreenheden er konfigureret til at åbne den elektronisk styrede ventil, når trykket i det teleskopiske rør (30) er lavere end trykket tilført af kilden (40) eller måltrykket.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA202270305A DK181438B1 (en) | 2022-06-10 | 2022-06-10 | Large turbocharged two-stroke internal combustion engine with improved piston cooling |
| CN202310656050.4A CN117211951A (zh) | 2022-06-10 | 2023-06-05 | 十字头型大型涡轮增压二冲程单流型内燃发动机 |
| JP2023092024A JP2023181120A (ja) | 2022-06-10 | 2023-06-05 | 改良されたピストン冷却手段を有する大型ターボ過給式２ストローク内燃機関 |
| KR1020230072971A KR20230171389A (ko) | 2022-06-10 | 2023-06-07 | 피스톤 냉각이 개선된 대형 터보차저 2행정 내연 엔진 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA202270305A DK181438B1 (en) | 2022-06-10 | 2022-06-10 | Large turbocharged two-stroke internal combustion engine with improved piston cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK181438B1 true DK181438B1 (en) | 2024-01-09 |
| DK202270305A1 DK202270305A1 (en) | 2024-01-09 |
Family
ID=89039555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DKPA202270305A DK181438B1 (en) | 2022-06-10 | 2022-06-10 | Large turbocharged two-stroke internal combustion engine with improved piston cooling |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2023181120A (da) |
| KR (1) | KR20230171389A (da) |
| CN (1) | CN117211951A (da) |
| DK (1) | DK181438B1 (da) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57176616U (da) | 1981-04-30 | 1982-11-08 |
-
2022
- 2022-06-10 DK DKPA202270305A patent/DK181438B1/en active IP Right Grant
-
2023
- 2023-06-05 CN CN202310656050.4A patent/CN117211951A/zh active Pending
- 2023-06-05 JP JP2023092024A patent/JP2023181120A/ja active Pending
- 2023-06-07 KR KR1020230072971A patent/KR20230171389A/ko active Search and Examination
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230171389A (ko) | 2023-12-20 |
| JP2023181120A (ja) | 2023-12-21 |
| CN117211951A (zh) | 2023-12-12 |
| DK202270305A1 (en) | 2024-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PAT | Application published |
Effective date: 20231211 |
|
| PME | Patent granted |
Effective date: 20240109 |