DE3017787C2 - - Google Patents
Info
- Publication number
- DE3017787C2 DE3017787C2 DE3017787A DE3017787A DE3017787C2 DE 3017787 C2 DE3017787 C2 DE 3017787C2 DE 3017787 A DE3017787 A DE 3017787A DE 3017787 A DE3017787 A DE 3017787A DE 3017787 C2 DE3017787 C2 DE 3017787C2
- Authority
- DE
- Germany
- 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.)
- Expired
Links
Classifications
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- 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
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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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0672—Omega-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder center axis
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- 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
- F02F3/0015—Multi-part pistons
- F02F3/0023—Multi-part pistons the parts being bolted or screwed together
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- 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
- F02F3/10—Pistons having surface coverings
- F02F3/12—Pistons having surface coverings on piston heads
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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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
- F02B2023/0612—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head the material having a high temperature and pressure resistance, e.g. ceramic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803017787 DE3017787A1 (en) | 1980-05-09 | 1980-05-09 | IC engine piston with ceramic crown - has sheet metal discs interposed between skirt and crown to form piston ring recess |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803017787 DE3017787A1 (en) | 1980-05-09 | 1980-05-09 | IC engine piston with ceramic crown - has sheet metal discs interposed between skirt and crown to form piston ring recess |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3017787A1 DE3017787A1 (en) | 1981-11-12 |
DE3017787C2 true DE3017787C2 (en) | 1987-01-29 |
Family
ID=6101996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803017787 Granted DE3017787A1 (en) | 1980-05-09 | 1980-05-09 | IC engine piston with ceramic crown - has sheet metal discs interposed between skirt and crown to form piston ring recess |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3017787A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4433616A (en) * | 1981-07-06 | 1984-02-28 | Deere & Company | Piston assembly for an internal combustion engine |
DE3205173A1 (en) * | 1982-02-13 | 1983-08-25 | Karl Schmidt Gmbh, 7107 Neckarsulm | PISTON FOR COMBUSTION ENGINES USED WITH HEAVY OIL |
DE3470908D1 (en) * | 1983-10-26 | 1988-06-09 | Mahle Gmbh | Multi-part piston for internal-combustion engines, having a partly isolated cooling oil conduit |
JPS60190650A (en) * | 1984-03-13 | 1985-09-28 | Ngk Insulators Ltd | Engine piston and manufacturing method thereof |
DE3511836C1 (en) * | 1985-03-30 | 1986-10-09 | M.A.N.- B & W Diesel GmbH, 8900 Augsburg | Built-up reciprocating piston of an internal combustion engine |
DE3625492A1 (en) * | 1986-07-28 | 1988-02-04 | Kloeckner Humboldt Deutz Ag | MULTI-PIECE PISTON FOR AN INTERNAL COMBUSTION ENGINE |
DE10107425A1 (en) * | 2001-02-16 | 2002-08-22 | Mahle Gmbh | Thread lock for built pistons |
CN103147840B (en) * | 2012-12-18 | 2015-04-22 | 宁波大叶园林设备有限公司 | Petrol engine for turbulence reversing emission reducing of logarithmic differentiation isogonal line skirt edge of piston skirt |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE133455C (en) * | ||||
US2234762A (en) * | 1939-04-01 | 1941-03-11 | John L Harrah | Piston construction |
AT179143B (en) * | 1953-01-28 | 1954-07-26 | Maybach Motorenbau Gmbh | Screw connection for multi-part pistons of internal combustion engines, in particular for motor vehicles |
GB1577685A (en) * | 1976-12-30 | 1980-10-29 | Cummins Engine Co Inc | Insulated composite piston |
-
1980
- 1980-05-09 DE DE19803017787 patent/DE3017787A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3017787A1 (en) | 1981-11-12 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |