EP0314604A2 - Moteur à combustion interne avec deux pistons rotatifs et alternatifs - Google Patents

Moteur à combustion interne avec deux pistons rotatifs et alternatifs Download PDF

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Publication number
EP0314604A2
EP0314604A2 EP88600013A EP88600013A EP0314604A2 EP 0314604 A2 EP0314604 A2 EP 0314604A2 EP 88600013 A EP88600013 A EP 88600013A EP 88600013 A EP88600013 A EP 88600013A EP 0314604 A2 EP0314604 A2 EP 0314604A2
Authority
EP
European Patent Office
Prior art keywords
pistons
cylinders
internal combustion
combustion engine
shaft
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Withdrawn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
EP88600013A
Other languages
German (de)
English (en)
Other versions
EP0314604A3 (fr
Inventor
Christos Symbardis
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GR871665A external-priority patent/GR871665B/el
Priority claimed from GR872038A external-priority patent/GR872038B/el
Application filed by Individual filed Critical Individual
Publication of EP0314604A2 publication Critical patent/EP0314604A2/fr
Publication of EP0314604A3 publication Critical patent/EP0314604A3/fr
Withdrawn legal-status Critical Current

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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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • 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
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F01B3/06—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by multi-turn helical surfaces and automatic reversal
    • F01B3/08—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by multi-turn helical surfaces and automatic reversal the helices being arranged on the pistons
    • 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
    • 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

Definitions

  • the invention relates to an internal combustion engine which basically comprises a pair of horizontally disposed cylinders (1) and pistons (2).
  • the engines used are the reciprocating four and two stroke engines, as well as the rotary Wankel type.
  • the four stroke engine requires valves and certain auxiliary accessories in order to operate.
  • the two stroke engine is simpler and shorter in size,it makes use of gates, but is disadvantageous in that its operation comprises a simultaneous introduction and discharge of the fuel.
  • the rotary Wankel type motor is also simple, but it nevertheless presents a good tightness and thereby the edges of its piston are worn out.
  • the present invention provides a better tightness than the rotary engine,less wear of the pistons, does not require valves but gates and the two pistons make two strokes each out of the four stroke operation.
  • the motor in accordance to the invention was characterized by that each piston operates for two of the strokes in a four stroke cycle.
  • the motor is in accordance to the invention shown to comprise two pistons, thereby being of a small size and weight with the best possible relationship between horsepower and weight.
  • FIG. 1 shows the whole arrangement of the motor, whereaw Fig. (2) shows the piston and basement of the cylinder.
  • the mode of application of the invention is described by reference to the accompanying drawings.
  • the motor comprises two pistons (2) of cylindrical form, each of which is shaped in such a way as to form an edge similar to the tip of a screw driver, whereas there is a round hole at the centre of the pistons (2).
  • the pistons are placed within two cylinders (1), being disposed in a linear disposition, where the upper part of one cylinder, is opposite to that of the other.
  • the basement of the cylinders (1) is provided with a cylindrical shaft 16 which passes through the hole (2) of the piston, whereas ring 17 comprising the locus of contact of the piston edges has a cross sectional area assimilating two joined triangles, whose corners have been rounded.
  • the cylinders are provided with holes of introduction and discharge of the fuel (9) and (10) respectively, whereas a spark plug (11) is provided onto the basement of the cylinder.
  • the two pistons (2) have a common shaft (3) being connected at its ends via nuts (4) and guides (5), enabling movement of the shaft (3) with the pistons (2).
  • the movement of the shaft (3) is transferred to a gear (7), where the shaft slides within the gear (7), which is forced to rotate.
  • the gear (7) is stabilized through the reciprocating motion of other gears (8), which rotate within ball bearings (15).
  • Lubricating holes for the cylindrical shaft (16) of cylinder (1) are provided onto the pistons (2).
  • the cylinders (1) and the ball bearings (15) are mounted onto a basement (13), which is used as an oil tank.
  • sliding means (12) comprising a shaft equipped with two small wheels on either end of the shaft, where these wheels are based onto the pistons (2) and move on the upper part of the cylinders (1), which are suitably formed and move in a manner proportional to the number of pistons (2), thereby reducing their wear.
  • the pistons (2) are also provided with recessions(14) where springs for tightness purposes are placed within these recessions. Furthermore the edges of the pistons (2) and the rounded edges of the rings (17) of cylinders (1) can be made with or without inclination. During their rotational motion, one of the pistons (2) moves upwardly and performs the expansion and suction stroke, whereas the other piston moves downwardly and performs the compression and discharge strokes.
  • the gear 7 includes a small free space in between two consecutive teeth at two or more points along its toothing. As well to the gears (8) there are fitted the counter-weights. (18)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP88600013A 1987-10-30 1988-10-14 Moteur à combustion interne avec deux pistons rotatifs et alternatifs Withdrawn EP0314604A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GR871665 1987-10-30
GR871665A GR871665B (en) 1987-10-30 1987-10-30 Internal conbustion engine of two revolving reciprocating pistons
GR872038A GR872038B (en) 1987-12-29 1987-12-29 Combustion engine with two reciprocating,revolving pistons
GR872038 1987-12-29

Publications (2)

Publication Number Publication Date
EP0314604A2 true EP0314604A2 (fr) 1989-05-03
EP0314604A3 EP0314604A3 (fr) 1989-07-12

Family

ID=26316316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88600013A Withdrawn EP0314604A3 (fr) 1987-10-30 1988-10-14 Moteur à combustion interne avec deux pistons rotatifs et alternatifs

Country Status (2)

Country Link
EP (1) EP0314604A3 (fr)
AU (1) AU2455488A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511080A (zh) * 2013-10-26 2014-01-15 毛永波 螺杆式活塞节能发动机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1613136A (en) * 1925-06-11 1927-01-04 Schuyler Schieffelin Internal-combustion motor.
DE501342C (de) * 1928-10-09 1930-07-01 Julius Seifert Kurbelwellenloser Zweitakt-Zwillingsmotor
US3396709A (en) * 1966-05-09 1968-08-13 Gulf Oil Corp Roto-piston engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511080A (zh) * 2013-10-26 2014-01-15 毛永波 螺杆式活塞节能发动机

Also Published As

Publication number Publication date
EP0314604A3 (fr) 1989-07-12
AU2455488A (en) 1989-05-04

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