GB2072957A - Intake gas recirculation - Google Patents

Intake gas recirculation

Info

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
Application number
GB8117259A
Other versions
GB2072957B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stumpf U E
Original Assignee
Stumpf U E
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stumpf U E filed Critical Stumpf U E
Publication of GB2072957A publication Critical patent/GB2072957A/en
Application granted granted Critical
Publication of GB2072957B publication Critical patent/GB2072957B/en
Expired legal-status Critical Current

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.
GB8117259A 1979-09-06 1980-09-05 Intake gas recirculation Expired GB2072957B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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