FR2349030A1 - IC engine combustion chamber - has wedge shaped cutouts in cylinder head and piston crown to produce turbulent inlet flow - Google Patents
IC engine combustion chamber - has wedge shaped cutouts in cylinder head and piston crown to produce turbulent inlet flowInfo
- Publication number
- FR2349030A1 FR2349030A1 FR7708813A FR7708813A FR2349030A1 FR 2349030 A1 FR2349030 A1 FR 2349030A1 FR 7708813 A FR7708813 A FR 7708813A FR 7708813 A FR7708813 A FR 7708813A FR 2349030 A1 FR2349030 A1 FR 2349030A1
- Authority
- FR
- France
- Prior art keywords
- combustion chamber
- cylinder head
- wedge shaped
- piston crown
- inlet flow
- 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- Withdrawn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
Classifications
-
- 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
-
- 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
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
-
- 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
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
-
- 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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The cylinder head is provided with a wedge shaped combustion chamber (4) communicating with the intake port (5) via the inlet valve (6). The spark plug (7) extends into the blunt end of the combustion chamber. The piston crown has a recess (8) corresponding in shape to the cylinder head combustion chamber with the respective blunt ends (4a, 8a) opposite to each other and the opposite surfaces parallel. The two parallel surfaces form a compression zone at piston top dead centre. The inlet valve is set at an angle to the cylinder axis, which causes the incoming gases to flow to one side of the combustion chamber. A turbulent flow follows to form a gas ring which benefits ignition when an exhaust feed back system is employed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1976050510U JPS52141504U (en) | 1976-04-21 | 1976-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2349030A1 true FR2349030A1 (en) | 1977-11-18 |
Family
ID=12860948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7708813A Withdrawn FR2349030A1 (en) | 1976-04-21 | 1977-03-24 | IC engine combustion chamber - has wedge shaped cutouts in cylinder head and piston crown to produce turbulent inlet flow |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS52141504U (en) |
DE (1) | DE2717326A1 (en) |
FR (1) | FR2349030A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0072109A2 (en) * | 1981-08-03 | 1983-02-16 | General Motors Corporation | Enchanced combustion internal combustion engine and method |
EP0261716A2 (en) * | 1986-09-09 | 1988-03-30 | ALFA LANCIA S.p.A. | Combustion chamber for a reciprocating engine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857613B2 (en) * | 1979-03-05 | 1983-12-21 | トヨタ自動車株式会社 | internal combustion engine |
JPS591329B2 (en) * | 1979-03-05 | 1984-01-11 | トヨタ自動車株式会社 | internal combustion engine |
JPS5681219A (en) * | 1979-12-03 | 1981-07-03 | Toyota Motor Corp | Internal combustion engine |
DE3110986C2 (en) * | 1981-03-20 | 1983-12-01 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Mixture-compressing reciprocating internal combustion engine with spark plug ignition |
CN108798872A (en) * | 2018-06-21 | 2018-11-13 | 江苏大学 | Combustion chamber, cylinder head and miniature gasoline engine |
-
1976
- 1976-04-21 JP JP1976050510U patent/JPS52141504U/ja active Pending
-
1977
- 1977-03-24 FR FR7708813A patent/FR2349030A1/en not_active Withdrawn
- 1977-04-19 DE DE19772717326 patent/DE2717326A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0072109A2 (en) * | 1981-08-03 | 1983-02-16 | General Motors Corporation | Enchanced combustion internal combustion engine and method |
EP0072109A3 (en) * | 1981-08-03 | 1983-09-07 | General Motors Corporation | Enchanced combustion internal combustion engine and method |
EP0261716A2 (en) * | 1986-09-09 | 1988-03-30 | ALFA LANCIA S.p.A. | Combustion chamber for a reciprocating engine |
EP0261716A3 (en) * | 1986-09-09 | 1989-03-15 | Alfa Lancia Industriale S.P.A. | Combustion chamber for a reciprocating engine |
Also Published As
Publication number | Publication date |
---|---|
JPS52141504U (en) | 1977-10-26 |
DE2717326A1 (en) | 1977-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |