FR2244077A1 - Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume - Google Patents

Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume

Info

Publication number
FR2244077A1
FR2244077A1 FR7333235A FR7333235A FR2244077A1 FR 2244077 A1 FR2244077 A1 FR 2244077A1 FR 7333235 A FR7333235 A FR 7333235A FR 7333235 A FR7333235 A FR 7333235A FR 2244077 A1 FR2244077 A1 FR 2244077A1
Authority
FR
France
Prior art keywords
stroke engine
lubricating device
piston volume
reduces dead
volume
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Withdrawn
Application number
FR7333235A
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.)
ETIENNE CHARLES FR
Original Assignee
ETIENNE CHARLES FR
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 ETIENNE CHARLES FR filed Critical ETIENNE CHARLES FR
Priority to FR7333235A priority Critical patent/FR2244077A1/en
Publication of FR2244077A1 publication Critical patent/FR2244077A1/en
Withdrawn legal-status Critical Current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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • 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
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The device has sealing ring segments between the moving mechanical part and the area where the changes undergone by the gas take place. A moving part reduces the dead volume under the piston and forms a running surface for the sealing segments. There is a difference between the inlet volume and the working volume so that the air or gas taken in under the piston will expand by coming into contact with the warm surfaces. The exhaust gas heat may be used for gas pre-heating, a precompression being applied to the inlet gases to compensate for the expansion caused by the preheating.
FR7333235A 1973-09-17 1973-09-17 Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume Withdrawn FR2244077A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7333235A FR2244077A1 (en) 1973-09-17 1973-09-17 Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333235A FR2244077A1 (en) 1973-09-17 1973-09-17 Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume

Publications (1)

Publication Number Publication Date
FR2244077A1 true FR2244077A1 (en) 1975-04-11

Family

ID=9125111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333235A Withdrawn FR2244077A1 (en) 1973-09-17 1973-09-17 Independent lubricating device for two-stroke engine - axial casing projection reduces dead piston volume

Country Status (1)

Country Link
FR (1) FR2244077A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536118A1 (en) * 1982-11-12 1984-05-18 Battagion Attilio Two-stroke petrol engine with heat recovery
EP0328835A1 (en) * 1986-09-02 1989-08-23 AEROSPATIALE Société Nationale Industrielle Central shaft internal combustion engine with annular, opposing and solidly joined pistons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536118A1 (en) * 1982-11-12 1984-05-18 Battagion Attilio Two-stroke petrol engine with heat recovery
EP0328835A1 (en) * 1986-09-02 1989-08-23 AEROSPATIALE Société Nationale Industrielle Central shaft internal combustion engine with annular, opposing and solidly joined pistons

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Legal Events

Date Code Title Description
ST Notification of lapse