EP0020806A1 - Dreitaktmotor - Google Patents

Dreitaktmotor Download PDF

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Publication number
EP0020806A1
EP0020806A1 EP79102183A EP79102183A EP0020806A1 EP 0020806 A1 EP0020806 A1 EP 0020806A1 EP 79102183 A EP79102183 A EP 79102183A EP 79102183 A EP79102183 A EP 79102183A EP 0020806 A1 EP0020806 A1 EP 0020806A1
Authority
EP
European Patent Office
Prior art keywords
piston
gases
heat engine
engine according
sock
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Withdrawn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
EP79102183A
Other languages
English (en)
French (fr)
Inventor
Christian Vialette
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
Application filed by Individual filed Critical Individual
Priority to EP79102183A priority Critical patent/EP0020806A1/de
Priority to PCT/FR1980/000099 priority patent/WO1981000134A1/fr
Publication of EP0020806A1 publication Critical patent/EP0020806A1/de
Withdrawn legal-status Critical Current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
    • F02B75/02—Engines characterised by their cycles, e.g. six-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
    • 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
    • F02B25/16—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 the charge flowing upward essentially along cylinder wall opposite the inlet ports
    • 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
    • F02B75/30—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with one working piston sliding inside another
    • 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
    • F02B2075/026—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle three
    • 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
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to piston heat engines in which the ignition of gases is obtained by compression of these mixtures or by controlled ignition.
  • the main types of known internal combustion engines are based on 2 and 4 stroke cycles.
  • the second an ignition for two crankshaft turns reduces and limits its power torque, the number of valve parts, return springs, rocker arms, camshaft and its transmission. All these organs absorb a certain energy and require a large quantity of lubricants necessary to ensure their lubrication, leading to an increase in weight and bulk. In the current state of things, we know that these represent many disadvantages arising on the one hand from waste and their frequent maintenance, losses due to friction.
  • the motor according to the present invention makes it possible to avoid these drawbacks. It is indeed possible to operate it without mixtures, without camshafts, without valves, without rockers, without return springs, it has a gain in maintenance, weight and space. As the number of components is reduced, the structural requirements are considerably reduced with a corresponding reduction in construction costs and an increase in output. Lubrication is carried out by bath or by injection and is improved, the lubricant is separated from the upper part, it ensures better lubrication and autonomy, the greater the quantity.
  • the means is a piston having the identical external appearance of the models already in use, the skirt and the segments are arranged in the same way. It has this particularity of having in its center a guide, this last slides inside the bore of the sock, in fact that eliminates the pitching which occurs with ordinary pistons, the sliding is done with a perfect linearity , limiting excessively rapid wear, the piston pin is located at the end of the bottom of the guide so that the linkage is as short as possible, saving space, limited by the sock.
  • the engine can have any shape and includes a crankcase 16 supporting the crankshaft 15 and comprising a cylinder head 1, a cylinder 2 and a sock 9, a piston 3 moves alternately according to angular displacements of the crankshaft connected to the piston by a connecting rod 14.
  • This engine is combined with a device which allows it to increase its power operating in a synchronized manner (with the rotation of the engine).
  • the sock 9 in FIG. 2 comprises a leg 11 with shoulder for centering the cylinder 1 q , at the end of the top of the bore comes a segment 4 serving as a seal.
  • the shape of the piston 3 may be various, it is remarkable in that it has a skirt 6, to which comes the segments 8 the number in is unlimited, in its center has a guide 5 to use as support for the axis 7, the latter possibly being screwed onto the piston head or molded together.
  • the cycle represented by FIG. 5 breaks down: first 1/2 time the piston rises until reaching the top dead center admission to cold room 20 the gases penetrate inside thanks to an orifice 17, second 1 / 2 stroke the piston descends, when it falls there is a vacuum in said chamber allowing the third 1/2 time bottom dead center to discharge the gases into the hot chamber 21 using a transfer 18, fourth 1 / 2 stroke the piston goes up compression, fifth 1/2 time relaxation, sixth 1/2 time exhaust of gases through orifice 19.
  • the engine can operate on petrol, diesel or fuel oil, the ignition of gases is obtained in several forms: controlled ignition, by compression of the gases until reaching the self-ignition temperature, pressure ignition controlled described in the patent "France” n ° 2 328 843.
  • the cylinders can be arranged in L, H, X, V, stars.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP79102183A 1979-06-29 1979-06-29 Dreitaktmotor Withdrawn EP0020806A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP79102183A EP0020806A1 (de) 1979-06-29 1979-06-29 Dreitaktmotor
PCT/FR1980/000099 WO1981000134A1 (fr) 1979-06-29 1980-06-24 Moteur 3 temps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79102183A EP0020806A1 (de) 1979-06-29 1979-06-29 Dreitaktmotor

Publications (1)

Publication Number Publication Date
EP0020806A1 true EP0020806A1 (de) 1981-01-07

Family

ID=8186148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102183A Withdrawn EP0020806A1 (de) 1979-06-29 1979-06-29 Dreitaktmotor

Country Status (2)

Country Link
EP (1) EP0020806A1 (de)
WO (1) WO1981000134A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337768A3 (de) * 1988-04-14 1990-04-25 Robert John Tait Brennkraftmaschine
US6684825B2 (en) * 2001-05-07 2004-02-03 Saddle Rock Technologies, Llc Rotary machine and thermal cycle
CN102777259A (zh) * 2011-05-11 2012-11-14 刘景林 环保节能型两冲程发动机
CN103452662A (zh) * 2013-06-04 2013-12-18 刘景林 环保节能型二冲程对置式发动机
WO2024072312A1 (en) * 2022-09-30 2024-04-04 Husqvarna Ab Crankcase scavenged two-stroke engine and handheld power tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH139275A (de) * 1929-04-15 1930-04-15 Sulzer Ag Zweitaktbrennkraftmaschine.
US2189357A (en) * 1938-02-23 1940-02-06 Scott Motors Saltaire Ltd Scavenging of the cylinders of twostroke-cycle internal combustion engines
GB1359300A (en) * 1970-09-19 1974-07-10 Hooper B Two-stroke internal combustion engines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE166392C (de) *
FR546972A (fr) * 1921-10-18 1922-11-28 Perfectionnements aux moteurs à combustion interne
DE659313C (de) * 1935-10-19 1938-04-30 Oswald Kuhnast Zweitaktbrennkraftmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH139275A (de) * 1929-04-15 1930-04-15 Sulzer Ag Zweitaktbrennkraftmaschine.
US2189357A (en) * 1938-02-23 1940-02-06 Scott Motors Saltaire Ltd Scavenging of the cylinders of twostroke-cycle internal combustion engines
GB1359300A (en) * 1970-09-19 1974-07-10 Hooper B Two-stroke internal combustion engines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337768A3 (de) * 1988-04-14 1990-04-25 Robert John Tait Brennkraftmaschine
US6684825B2 (en) * 2001-05-07 2004-02-03 Saddle Rock Technologies, Llc Rotary machine and thermal cycle
CN102777259A (zh) * 2011-05-11 2012-11-14 刘景林 环保节能型两冲程发动机
CN103452662A (zh) * 2013-06-04 2013-12-18 刘景林 环保节能型二冲程对置式发动机
WO2024072312A1 (en) * 2022-09-30 2024-04-04 Husqvarna Ab Crankcase scavenged two-stroke engine and handheld power tool

Also Published As

Publication number Publication date
WO1981000134A1 (fr) 1981-01-22

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19811214