WO2018093279A1 - Piston de moteur à combustion interne à deux temps, ecologiquement propre - Google Patents

Piston de moteur à combustion interne à deux temps, ecologiquement propre Download PDF

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Publication number
WO2018093279A1
WO2018093279A1 PCT/PL2017/000103 PL2017000103W WO2018093279A1 WO 2018093279 A1 WO2018093279 A1 WO 2018093279A1 PL 2017000103 W PL2017000103 W PL 2017000103W WO 2018093279 A1 WO2018093279 A1 WO 2018093279A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
oil
rings
lubricated
internal combustion
Prior art date
Application number
PCT/PL2017/000103
Other languages
English (en)
Inventor
Jacek MAJEWSKI
Original Assignee
Majewski Jacek
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 Majewski Jacek filed Critical Majewski Jacek
Priority to DE112017005831.7T priority Critical patent/DE112017005831T5/de
Publication of WO2018093279A1 publication Critical patent/WO2018093279A1/fr

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
    • 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
    • F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
    • F02B33/14—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder working and pumping pistons forming stepped piston
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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 
    • 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
    • F02F5/00—Piston rings, e.g. associated with piston crown

Definitions

  • the piston of the ecological clean, two-stroke internal combustion engine The piston of the ecological clean, two-stroke internal combustion engine.
  • the subject of the invention is a piston of the ecological clean, two-stroke internal combustion engine in the field of mechanics. It can be used in two-stroke, new generation engine especially in the cars, motorcycles, vehicles, aircrafts, water crafts, or stationary devices like generators.
  • the essence of the invention is constructively simple, mounted on a connecting rod pin, a piston of the internal combustion engine of different diameters, with piston rings at both ends, characterized by the fact, that entire lateral surface of the piston consists of at least two, oil lubricated zones, and additionally, there is an oil -free, non lubricated zone between them.
  • the lubricated lower part of piston, of larger diameter, working as a initial compression piston comprises a set of piston rings, contains at least one seal rig, and at least one compression ring, but upper lubricated part of piston, of smaller diameter, working as main part of piston, comprises at least two, opposite sets of seal, and compression rings, in such a way , that oil could not escape beyond their outline.
  • the piston is mounted on the connecting rod pin, so it can be used traditionally crankshaft.
  • Two outer lubrication zones require lubricate, because they have a rings.
  • Upper lubrication zone can be lubricated splash, or under pressure.
  • Upper rings of the main part of piston seals piston relative to the cylinder, and prevents combustion chamber from the oil.
  • Bottom rings of the main part of piston seals piston relative to the cylinder, and prevents non lubricated zone called initial compression chamber, from the oil.
  • Middle part of piston should be not lubricated.
  • This part does not come into contact with cylinder, because as it has a little smaller diameter. It is also internal wall of the initial compression chamber. Oil, that would get into this zone, would pollute the flowing air, or air-fuel mixture. Larger piston diameter, with a traditional ring set, constituting lower lubrication zone, cooperates with the initial compression part of cylinder, which is the outer wall of initial compression chamber.
  • This rings are mounted like in traditional piston, and lubricated with splash by the oil from crankcase. Such a setting of the rings causes sealing initial compression chamber from crankcase, and prevent the oil from penetrating there. Excess oil from the both lubrication zones is drained through holes to the crankcase.
  • the piston of the invention opens up new possibilities for easy construction of the entire range ecological clean, new generation, two-stroke combustion engines. Much higher dynamics, double power and torque, are achieved without increasing mechanical stress of particular parts. By eliminating two unnecessary strokes, the engine has less internal resistance, and does not need to overcome some of the inertia force of the piston-crankshaft system. By keeping the same power, the cars will be able to have significantly smaller engines, which will directly reduce production costs. In the hybrid cars , where combustion engine performs only auxiliary functions, this is especially important. Also important is ease to get a supercharging, without additional devices, control systems, intercoolers, and at zero costs. Supercharging appears at the quotient of initial compression piston diameter to the main piston diameter over 1.4. It starts from idle, does not have a time delay, no additional drive required, no special lubrication require, and no special service. It is also devoid of any disadvantages of existing turbochargers.
  • Fig.1 and Fig. 2 shoves mounted on connecting rod pin, the double diameter piston, with sets of the rings. There are indicated a positions of the particular rings, lubrication zones and oil free zone. Use arrows and description to illustrate the example of oil circulation, and lubrication of the rings.
  • Fig 3 shows the application of the pistons according to the invention to the two cylinder, two-stroke v-engine.
  • the suction valve 15 is typical valve used in two-stroke engines, but inlet channel valve 16 protects the load in the inlet channel 1 1 against an inaccurate retraction.
  • the engine pistons are lubricated in two ways. The upper lubrication zone is lubricated with splash or pressure, and the lower splash. The oil return to the crankcase 14 is the same as in traditional four-stroke engine. There may be many examples of the uses invention. These can be multi- cylinder engines with different configuration, and number of cylinders.

Landscapes

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

Abstract

L'invention concerne un piston de moteur à combustion interne à deux temps, propre écologiquement, dans le domaine de la mécanique. Ce piston peut être utilisé dans un moteur à deux temps, de nouvelle génération, notamment dans les voitures, motocyclettes, véhicules, aéronefs, embarcations, ou dans des dispositifs fixes comme les générateurs. Selon l'invention, il a été monté sur une tige de bielle un piston du moteur à combustion interne de différents diamètre, avec des segments de piston aux deux extrémités, qui est caractérisé en ce que l'entière surface latérale du piston se compose d'au moins deux zones lubrifiées à l'huile (1,3), et en ce qu'il existe une zone non lubrifiée exempte d'huile (2) entre celles-ci. La partie lubrifiée de diamètre supérieur du piston (3), comprenant un ensemble de segments de piston, contient au moins un anneau d'étanchéité (4) et au moins un anneau de compression (5), tandis que la partie lubrifiée de diamètre inférieur du piston comprend au moins deux ensembles opposés d'anneaux d'étanchéité (6) et d'anneaux de compression (7), entre ces ensembles étant réparti de manière égale un canal d'huile (8), un système lubrifiant multiple ou simple (9) assurant une distribution efficace et régulière de l'huile.
PCT/PL2017/000103 2016-11-18 2017-10-17 Piston de moteur à combustion interne à deux temps, ecologiquement propre WO2018093279A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112017005831.7T DE112017005831T5 (de) 2016-11-18 2017-10-17 Kolben für einen ökologisch sauberen Zweitakt - Verbrennungsmotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL419505A PL235520B1 (pl) 2016-11-18 2016-11-18 Tłok dwusuwowego silnika spalinowego nie wymagającego dawkowania oleju do paliwa
PLP.419505 2016-11-18

Publications (1)

Publication Number Publication Date
WO2018093279A1 true WO2018093279A1 (fr) 2018-05-24

Family

ID=60327349

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2017/000103 WO2018093279A1 (fr) 2016-11-18 2017-10-17 Piston de moteur à combustion interne à deux temps, ecologiquement propre

Country Status (3)

Country Link
DE (1) DE112017005831T5 (fr)
PL (1) PL235520B1 (fr)
WO (1) WO2018093279A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290571A1 (fr) * 1974-11-08 1976-06-04 Gatserelia Michel Moteur a deux temps
EP0084790A1 (fr) * 1982-01-19 1983-08-03 Bernard Hooper Piston étagé et moteur à piston étagé
DE4007466A1 (de) * 1990-03-09 1991-02-14 Franz Josef Knott Spuel- und schmierverfahren fuer hubkolbenmotoren
US20090205338A1 (en) * 2007-03-07 2009-08-20 Harmon Sr James V High efficiency dual cycle internal combustion engine with steam power recovered from waste heat
WO2011064853A1 (fr) * 2009-11-25 2011-06-03 トヨタ自動車株式会社 Piston pour moteur à combustion interne et moteur à combustion interne
PL407765A1 (pl) 2014-04-01 2015-10-12 Jacek Majewski Tłok z pierścieniami dwusuwowego silnika spalinowego

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290571A1 (fr) * 1974-11-08 1976-06-04 Gatserelia Michel Moteur a deux temps
EP0084790A1 (fr) * 1982-01-19 1983-08-03 Bernard Hooper Piston étagé et moteur à piston étagé
DE4007466A1 (de) * 1990-03-09 1991-02-14 Franz Josef Knott Spuel- und schmierverfahren fuer hubkolbenmotoren
US20090205338A1 (en) * 2007-03-07 2009-08-20 Harmon Sr James V High efficiency dual cycle internal combustion engine with steam power recovered from waste heat
WO2011064853A1 (fr) * 2009-11-25 2011-06-03 トヨタ自動車株式会社 Piston pour moteur à combustion interne et moteur à combustion interne
PL407765A1 (pl) 2014-04-01 2015-10-12 Jacek Majewski Tłok z pierścieniami dwusuwowego silnika spalinowego

Also Published As

Publication number Publication date
PL235520B1 (pl) 2020-08-24
DE112017005831T5 (de) 2019-08-08
PL419505A1 (pl) 2018-05-21

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