FR2398182A1 - Moteur a deux temps - Google Patents

Moteur a deux temps

Info

Publication number
FR2398182A1
FR2398182A1 FR7821695A FR7821695A FR2398182A1 FR 2398182 A1 FR2398182 A1 FR 2398182A1 FR 7821695 A FR7821695 A FR 7821695A FR 7821695 A FR7821695 A FR 7821695A FR 2398182 A1 FR2398182 A1 FR 2398182A1
Authority
FR
France
Prior art keywords
stroke engine
exhaust
piston
passage
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.)
Granted
Application number
FR7821695A
Other languages
English (en)
Other versions
FR2398182B3 (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.)
Piaggio and C SpA
Original Assignee
Piaggio and C SpA
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 Piaggio and C SpA filed Critical Piaggio and C SpA
Publication of FR2398182A1 publication Critical patent/FR2398182A1/fr
Application granted granted Critical
Publication of FR2398182B3 publication Critical patent/FR2398182B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L21/00—Use of working pistons or pistons-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines
    • F01L21/02—Piston or piston-rod used as valve members
    • 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
    • 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
    • F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/24—Pistons  having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
    • 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)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

Dans ce moteur à deux temps l'échappement des gaz brûlés s'effectue à travers un passage 3, 4 ménagé dans le piston, en direction d'un conduit d'échappement 5 du cylindre.
FR7821695A 1977-07-21 1978-07-21 Moteur a deux temps Granted FR2398182A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25991/77A IT1081146B (it) 1977-07-21 1977-07-21 Motore a due tempi con luce di scarico praticata nel pistone

Publications (2)

Publication Number Publication Date
FR2398182A1 true FR2398182A1 (fr) 1979-02-16
FR2398182B3 FR2398182B3 (fr) 1981-03-06

Family

ID=11218352

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821695A Granted FR2398182A1 (fr) 1977-07-21 1978-07-21 Moteur a deux temps

Country Status (7)

Country Link
JP (1) JPS54116519A (fr)
DE (1) DE2831490A1 (fr)
ES (1) ES471890A1 (fr)
FR (1) FR2398182A1 (fr)
GB (1) GB2001390A (fr)
IT (1) IT1081146B (fr)
NL (1) NL7807742A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470247A1 (fr) * 1979-11-27 1981-05-29 Piaggio & C Spa Moteur a deux temps a pistons opposes travaillant avec une charge stratifiee

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135423B (en) * 1983-02-12 1987-09-09 Alexander Walter Swales Piston and cylinder configuration
DE3426976A1 (de) * 1984-07-21 1986-01-30 Graphischer Maschinenbau GmbH, 1000 Berlin Vorrichtung zur durchfuehrung eines rollenwechsels
JPH0441223Y2 (fr) * 1986-05-31 1992-09-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470247A1 (fr) * 1979-11-27 1981-05-29 Piaggio & C Spa Moteur a deux temps a pistons opposes travaillant avec une charge stratifiee

Also Published As

Publication number Publication date
DE2831490A1 (de) 1979-02-01
IT1081146B (it) 1985-05-16
ES471890A1 (es) 1979-02-16
JPS54116519A (en) 1979-09-10
NL7807742A (nl) 1979-01-23
FR2398182B3 (fr) 1981-03-06
GB2001390A (en) 1979-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse