FR2230226A5 - I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston - Google Patents

I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston

Info

Publication number
FR2230226A5
FR2230226A5 FR7317744A FR7317744A FR2230226A5 FR 2230226 A5 FR2230226 A5 FR 2230226A5 FR 7317744 A FR7317744 A FR 7317744A FR 7317744 A FR7317744 A FR 7317744A FR 2230226 A5 FR2230226 A5 FR 2230226A5
Authority
FR
France
Prior art keywords
air
crankcase
charge
auxiliary
cylinder
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.)
Expired
Application number
FR7317744A
Other languages
French (fr)
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.)
GOODWIN JOHN GB
Original Assignee
GOODWIN JOHN GB
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 GOODWIN JOHN GB filed Critical GOODWIN JOHN GB
Priority to FR7317744A priority Critical patent/FR2230226A5/en
Application granted granted Critical
Publication of FR2230226A5 publication Critical patent/FR2230226A5/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B17/00—Engines characterised by means for effecting stratification of charge in 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/26—Four-stroke engines characterised by having crankcase pumps
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The internal combustion engine is a four stroke reciprocating piston type. There is an air inlet port to the crankcase which is uncovered when the cylinder is at top dead centre. The air trapped in the crankcase is then compressed as the piston descends. At bottom dead centre the exhaust ports from the crankcase are uncovered, allowing the compressed air to pass into the cylinder. The charge already drawn into the cylinder is now diluted to the correct mixture strength before being compressed for the power stroke. Combustion now takes place as in conventional engines, but on the exhaust stroke the additional charge of air from the crankcase proveds scavenger air. Variations provide for the additional air charge to be supplied through a supercharger and for the charge to be metered.
FR7317744A 1973-05-16 1973-05-16 I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston Expired FR2230226A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7317744A FR2230226A5 (en) 1973-05-16 1973-05-16 I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7317744A FR2230226A5 (en) 1973-05-16 1973-05-16 I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston

Publications (1)

Publication Number Publication Date
FR2230226A5 true FR2230226A5 (en) 1974-12-13

Family

ID=9119421

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7317744A Expired FR2230226A5 (en) 1973-05-16 1973-05-16 I.C. engine with auxiliary air injection - has auxiliary injection passage in cylinder wall and controlled by piston

Country Status (1)

Country Link
FR (1) FR2230226A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337252A1 (en) * 1976-01-02 1977-07-29 Franke Walter PROCESS FOR IMPROVING THE OPERATION OF A FOUR STROKE INTERNAL COMBUSTION ENGINE AND ENGINE SUITABLE FOR THE IMPLEMENTATION OF SUCH A PROCESS
WO1999066181A1 (en) * 1998-06-04 1999-12-23 Gunnar Vestergaard Rasmussen Piston engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337252A1 (en) * 1976-01-02 1977-07-29 Franke Walter PROCESS FOR IMPROVING THE OPERATION OF A FOUR STROKE INTERNAL COMBUSTION ENGINE AND ENGINE SUITABLE FOR THE IMPLEMENTATION OF SUCH A PROCESS
WO1999066181A1 (en) * 1998-06-04 1999-12-23 Gunnar Vestergaard Rasmussen Piston engine
US6796286B1 (en) 1998-06-04 2004-09-28 Gunnar Vestergaard Rasmussen Piston engine

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