GB2072957A - Intake gas recirculation - Google Patents
Intake gas recirculationInfo
- Publication number
- GB2072957A GB2072957A GB8117259A GB8117259A GB2072957A GB 2072957 A GB2072957 A GB 2072957A GB 8117259 A GB8117259 A GB 8117259A GB 8117259 A GB8117259 A GB 8117259A GB 2072957 A GB2072957 A GB 2072957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engine
- compression ratio
- recirculation
- thermodynamic efficiency
- order
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
-
- 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
- F02B11/00—Engines characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition, e.g. in different cylinders
- F02B11/02—Engines characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition, e.g. in different cylinders convertible from fuel-air mixture compression to air compression or vice versa
-
- 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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/04—Engines with prolonged expansion in main cylinders
-
- 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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention refers to the adapting of an internal combustion spark ignition engine to a multifuel engine having maximum thermodynamic efficiency possible with each particular fuel. The innovation consists in the variation of an effective compression ratio of the engine by recirculation of unburned gases from the cylinder to the intake tube (9) of the engine in a certain extent of the compression stroke of the engine. The recirculation of the intake gases is controlled by an actuating device (5) with variable action. The basic effect of the invention is to confer to the engine the property of having a variable effective compression ratio optimized for a particular fuel and at the same time to use a large expansion ratio, being constant and independent of the compression ratio, in order to obtain a high thermodynamic efficiency and a low specific fuel consumption. The invention can be applied on existing engines or on new engines in order to get a highly efficient use of volatile or gaseous fuels, such as some petroleum derivates and its alternative fuels like the alcohols and biogases.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR7905726A BR7905726A (en) | 1979-09-06 | 1979-09-06 | ADMINISTRATION GAS RECIRCULATION |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2072957A true GB2072957A (en) | 1981-10-07 |
GB2072957B GB2072957B (en) | 1983-09-07 |
Family
ID=4018054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8117259A Expired GB2072957B (en) | 1979-09-06 | 1980-09-05 | Intake gas recirculation |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0035525A1 (en) |
BR (1) | BR7905726A (en) |
GB (1) | GB2072957B (en) |
WO (1) | WO1981000739A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113456391A (en) * | 2021-08-13 | 2021-10-01 | 王媛媛 | Nursing is synthesized and is used waste liquid collection device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122251A (en) * | 1982-05-25 | 1984-01-11 | Ford Motor Co | Variable effective compression ratio internal combustion engine |
US8215292B2 (en) | 1996-07-17 | 2012-07-10 | Bryant Clyde C | Internal combustion engine and working cycle |
US7487766B2 (en) | 2007-04-23 | 2009-02-10 | Southwest Research Institute | Flexible fuel engines with exhaust gas recirculation for improved engine efficiency |
US9347369B2 (en) | 2013-03-15 | 2016-05-24 | Gotek Energy, Inc. | Systems and methods for controlling compression in an engine, compressor, or pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5024630A (en) * | 1973-07-09 | 1975-03-15 | ||
US3986351A (en) * | 1973-07-27 | 1976-10-19 | Woods Robert L | Method and apparatus for controlling the air flow in an internal combustion engine |
JPS6022170B2 (en) * | 1977-12-02 | 1985-05-31 | トヨタ自動車株式会社 | Combustion accelerator for multi-cylinder internal combustion engines |
US4191150A (en) * | 1978-03-20 | 1980-03-04 | General Motors Corporation | Engine with selective venting of unburned mixture from the piston crevice volume |
-
1979
- 1979-09-06 BR BR7905726A patent/BR7905726A/en unknown
-
1980
- 1980-09-05 GB GB8117259A patent/GB2072957B/en not_active Expired
- 1980-09-05 WO PCT/BR1980/000011 patent/WO1981000739A1/en unknown
-
1981
- 1981-03-23 EP EP80901713A patent/EP0035525A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113456391A (en) * | 2021-08-13 | 2021-10-01 | 王媛媛 | Nursing is synthesized and is used waste liquid collection device |
Also Published As
Publication number | Publication date |
---|---|
BR7905726A (en) | 1981-03-10 |
GB2072957B (en) | 1983-09-07 |
WO1981000739A1 (en) | 1981-03-19 |
EP0035525A1 (en) | 1981-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |