WO2013143676A1 - Procédé pour la suppression de pics de pression dans un cylindre d'un moteur à combustion interne à piston, et piston pour moteur à combustion interne à piston - Google Patents

Procédé pour la suppression de pics de pression dans un cylindre d'un moteur à combustion interne à piston, et piston pour moteur à combustion interne à piston Download PDF

Info

Publication number
WO2013143676A1
WO2013143676A1 PCT/EP2013/000883 EP2013000883W WO2013143676A1 WO 2013143676 A1 WO2013143676 A1 WO 2013143676A1 EP 2013000883 W EP2013000883 W EP 2013000883W WO 2013143676 A1 WO2013143676 A1 WO 2013143676A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
support member
combustion chamber
pressure
combustion engine
Prior art date
Application number
PCT/EP2013/000883
Other languages
German (de)
English (en)
Inventor
Peter Kreuter
Original Assignee
Peter Kreuter
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 Peter Kreuter filed Critical Peter Kreuter
Publication of WO2013143676A1 publication Critical patent/WO2013143676A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • 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
    • F02B75/36—Engines with parts of combustion- or working-chamber walls resiliently yielding under pressure
    • F02B75/38—Reciprocating - piston engines
    • 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
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
    • F16K99/0032—Constructional types of microvalves; Details of the cutting-off member using phase transition or influencing viscosity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0042—Electric operating means therefor
    • F16K99/0044—Electric operating means therefor using thermo-electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0055—Operating means specially adapted for microvalves actuated by fluids
    • F16K99/0061—Operating means specially adapted for microvalves actuated by fluids actuated by an expanding gas or liquid volume
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K2099/0069—Bistable microvalves

Definitions

  • the invention relates to a method for reducing pressure peaks in a cylinder of a reciprocating internal combustion engine and a piston for a reciprocating internal combustion engine.
  • the invention has for its object to provide a remedy for the aforementioned problem.
  • a first solution of this object is achieved by a method according to claim 1, which is further developed with the features of claim 2.
  • One aspect of the invention is to design the piston of an internal combustion engine in such a way that at least a portion of the surface of the piston facing the combustion chamber moves relative to the articulation of the piston on a connecting rod such that the volume of the combustion chamber increases and thereby the pressure in the combustion chamber does not rise to a value which it would assume in conventional design of the piston.
  • the invention can be applied to any type of internal combustion engine, gasoline engines, diesel engines, gas engines u. s. w.
  • Fig. 1 shows a central section through a part of a cylinder with pistons therein, cut perpendicular to a piston pin and
  • Fig. 2 shows a central section through the piston of FIG. 1, cut parallel to the piston pin.
  • a piston 1 operates in a cylinder 2 of a single or multi-cylinder piston internal combustion engine a piston designated generally by 4.
  • the piston is connected via a connecting rod 6 in a conventional manner with a crankshaft of the internal combustion engine.
  • a connecting rod 6 In the upwardly through a cylinder head 8 and down through the piston 4 finished working chamber 10 opens in a conventional manner, an inlet channel 12 and an outlet 14.
  • the connection between the inlet channel 12 and the working chamber 10 by means of an inlet valve 16 can be opened and closed.
  • the connection between the outlet channel 14 and the working chamber 10 can be opened and closed by means of an outlet valve 18.
  • the piston 4 has a multi-part construction and has an annular part 20, the outer circumferential surface of which can be moved in a manner known per se along the inner circumferential surface of the cylinder 2 while being sealed by means of piston rings (not shown).
  • the ring member 20 includes a preferably coaxial to its outer peripheral surface passage opening whose diameter decreases in a step 24.
  • a support member 26 of the piston 4 is received, which is fixed by means of a piston pin 28, which penetrates the support member and the ring member 20, rigidly on the ring member 20.
  • the support member 26 has a cylindrical outer wall whose outer diameter corresponds to the inner diameter of the lower portion of the through hole 22, wherein between the outer wall 30 and the ring member 20, a sealing ring 32 is arranged.
  • the outer wall 30 merges via a bottom wall 34 into a pot-like projection 36 projecting upwards according to the figure, in which the piston pin 28 projecting through the projection 36 is arranged, on which the connecting rod 6 is mounted.
  • an upper part 38 is accommodated which, in the example shown, is designed with a combustion chamber trough 40 open to the working chamber 10.
  • the upper part 38 has a step 42 complementary to step 42, so that the relative to the ring member 20 axially displaceable upper part 38 abuts in its uppermost position according to the figure with the step 42 on the step 24 of the through hole 22.
  • the outer contour of the upper part 38 corresponds to the inner contour of the through hole 22, wherein for sealing in the outer periphery of the upper part 38, one or more piston rings are arranged, which are formed as sealing rings 39 itself.
  • the height of the upper part 38 is preferably such that, when the upper part 38 is in contact with the step 24, its upper side is flush with the upper side of the annular part 20.
  • a compression spring 44 is arranged, which urges the upper part 38 away from the support part 26.
  • a supply channel 46 into the intermediate space 45.
  • a check valve 48 is arranged, which allows a flow from the working chamber 10 into the intermediate space 45 and blocks in the opposite direction.
  • a discharge channel 50 leads through the ring part 20 into a crank chamber 51.
  • a safety valve 52 is arranged in the discharge channel 50 and opens in the intermediate space 45 at an unacceptably high pressure.
  • valves 48 and 52 which may also be known per se in their construction, installed in a conventional manner.
  • the upper part 38 is inserted from below into the passage opening 22. Subsequently, the compression spring 44 is introduced and the support member 30 is inserted.
  • the support member 30 is rigidly secured by inserting the piston pin 28 through the ring member 20 and the support member 26 through the ring member 20, wherein thereby the connecting rod 6 is mounted on the piston pin 28.
  • the volume of the intermediate space 45 is initially maximum as a result of the compression spring 44, wherein the intermediate space 45 can fill with fluid when the check valve 48 is open.
  • the compression spring 44 is preferably dimensioned such that the upper part 38 does not move in the direction of the support part 26 as a result of inertia forces occurring during the up and down movement of the piston.
  • PA - Pz K (d) / F.
  • the pressure PA in the working chamber is as long as the upper part 38 can move and does not abut the step 24, that is in principle greater than the pressure pz in the intermediate space, the difference being due to the force of Compression spring 44 is determined.
  • the described multi-part design of the piston causes that in the space 45 as a result of the compression spring 44 and the already opening at low differential pressure check valve 48 builds a pressure at befindlichem in contact with the stage 24 upper part 38 as a result of unavoidable leakage losses under the
  • the peak pressure occurring during combustion remains, so that pressure peaks occurring during the combustion are reduced and the energy stored by the increase in pressure in the intermediate space 45 and the pressure spring 44 in the subsequent pressure drop in the working chamber. is recovered.
  • the geometric compression ratio is not changed since the upper part 38 remains in contact with the step 24 after only a few work cycles in the TDC of the piston 4 or before the beginning of the combustion.
  • the compression spring 44 By tuning the compression spring 44, the required for the opening of the check valve 48 pressure difference at the check valve 48, the surface of the stage 24 (as a result of which caused by the pressure in the working chamber 10, the upper part 38 downwardly urging force when the upper part 38 at the Step 24 decreases suddenly) and the possibly existing leaks from the gap 45 out can be achieved that sets in the space 45 when the upper part of the stage 24, for example, a pressure about the end of the compression stroke or before the start of combustion in the working chamber 10 prevailing pressure corresponds.
  • the safety valve 52 is dimensioned such that at impermissibly high pressure in the intermediate space 45, for example at a pressure which approaches the combustion peak pressure as a result of very high tightness of the intermediate space 45 relative to the working chamber 10 or the crank chamber opens, so that the pressure in the Interspace 45 is limited to a predetermined maximum pressure.
  • the exemplified piston can be modified in many ways.
  • the upper part 38 can be rigidly connected to the ring part 20 and the support part 26 can be displaceable relative to the ring part 20.
  • the upper part then forms a piston body together with the ring part.
  • both the supporting part and the upper part can be displaceable relative to the ring part.
  • the upper part 38 does not necessarily have to be formed with a combustion bowl 40, which forms the combustion chamber together with the working chamber.
  • a combustion bowl 40 is particularly advantageous for diesel engines.
  • the discharge channel 50 with the safety valve 52 may be missing and the safety valve 52 may also be designed as a bypass to the check valve 48.
  • the channels can go through the top.
  • the discharge channel can open into the working chamber 10.
  • the support member may be fixed independently of the piston pin on the ring member or in one piece with the Ring member be formed, wherein the upper part is inserted from above into the ring member and is held for example by means of a screwed into the ring member socket as a stop in the ring member.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne un piston (4) pour un moteur à combustion interne, renfermant un corps de piston présentant une partie supérieure, un axe de palier, disposé à distance de la partie supérieure, pour le montage d'une bielle (6) pouvant être reliée avec un vilebrequin, un espace creux (45) à volume modifiable, un canal d'amenée (46) reliant la partie supérieure du piston avec l'espace creux, dans lequel est disposée une soupape de retenue (48), libérant un écoulement de fluide de la partie supérieure du piston vers l'espace creux, et un ressort (44), poussant la partie supérieure en direction d'une augmentation de distance entre la partie supérieure et l'axe de palier. Une force s'exerçant sur la partie supérieure du piston, est transmise à l'axe de palier, via une pression agissant dans l'espace creux, et via la force du ressort. Le volume de l'espace creux diminue lors d'un accroissement de pression, avec diminution de la distance entre au moins une partie de la partie supérieure du piston et l'axe du palier.
PCT/EP2013/000883 2012-03-26 2013-03-22 Procédé pour la suppression de pics de pression dans un cylindre d'un moteur à combustion interne à piston, et piston pour moteur à combustion interne à piston WO2013143676A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012005922.1A DE102012005922B4 (de) 2012-03-26 2012-03-26 Kolben für eine Kolbenbrennkraftmaschine
DE102012005922.1 2012-03-26

Publications (1)

Publication Number Publication Date
WO2013143676A1 true WO2013143676A1 (fr) 2013-10-03

Family

ID=49111954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/000883 WO2013143676A1 (fr) 2012-03-26 2013-03-22 Procédé pour la suppression de pics de pression dans un cylindre d'un moteur à combustion interne à piston, et piston pour moteur à combustion interne à piston

Country Status (2)

Country Link
DE (1) DE102012005922B4 (fr)
WO (1) WO2013143676A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018044184A1 (fr) * 2016-09-02 2018-03-08 Gaj Jablonski Wojciech Ensemble cylindre de moteur et moteur à combustion contrarotatif construit à l'aide de celui-ci
CN110159422A (zh) * 2019-07-03 2019-08-23 吕国良 活塞、转子内燃机、车辆、飞行器及船舶
WO2020080963A1 (fr) * 2018-10-17 2020-04-23 Gaj Jablonski Wojciech Moteur à hydrogène à pistons opposés et procédé de fonctionnement
CN111396198A (zh) * 2020-04-23 2020-07-10 张佰力 消除活塞发动机爆震的活塞限压方法及其使用的带有泄压功能的活塞

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840343B (zh) * 2016-05-26 2017-11-14 源之翼智能装备制造（江苏）有限公司 高效双活塞热气机
CN111282296B (zh) * 2020-03-13 2021-12-07 济南神华制冷设备有限公司 一种烟气脱硝用液氨蒸发器
CN111396199B (zh) * 2020-04-23 2022-07-05 张佰力 活塞式发动机稳压储能方法及该方法使用的活塞

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB300808A (en) * 1927-12-09 1928-11-22 Erich Schweter Improvements in pistons
US4510895A (en) * 1982-09-11 1985-04-16 Ae Plc Pistons for internal combustion engines
DE102005015513A1 (de) * 2004-08-24 2006-03-09 Christoph Gerstenhauer Druckaufnahmekolben

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE667002C (de) * 1936-02-06 1938-11-03 George Noy Kolben fuer luftverdichtende Brennkraftmaschinen
DE3637196A1 (de) * 1986-10-31 1988-05-19 Mtu Friedrichshafen Gmbh Oelgekuehlter kolben mit einer brennmulde fuer eine verbrennungskraftmaschine
GB2223292B (en) * 1988-09-29 1992-04-15 T & N Technology Ltd Improvements in and relating to pistons
US6019080A (en) * 1998-04-27 2000-02-01 Lagrone; John T. Ported piston

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB300808A (en) * 1927-12-09 1928-11-22 Erich Schweter Improvements in pistons
US4510895A (en) * 1982-09-11 1985-04-16 Ae Plc Pistons for internal combustion engines
DE102005015513A1 (de) * 2004-08-24 2006-03-09 Christoph Gerstenhauer Druckaufnahmekolben

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018044184A1 (fr) * 2016-09-02 2018-03-08 Gaj Jablonski Wojciech Ensemble cylindre de moteur et moteur à combustion contrarotatif construit à l'aide de celui-ci
US10718210B2 (en) 2016-09-02 2020-07-21 Wojciech GAJ-JABLONSKI Engine cylinder assembly and counter-rotating combustion engine constructed with the use of it
WO2020080963A1 (fr) * 2018-10-17 2020-04-23 Gaj Jablonski Wojciech Moteur à hydrogène à pistons opposés et procédé de fonctionnement
CN113412365A (zh) * 2018-10-17 2021-09-17 沃杰·盖-耶布隆斯基 相反的活塞氢发动机和用于操作的方法
JP2022516202A (ja) * 2018-10-17 2022-02-24 ガジュ－ヤブウォニスキ、ヴォイチェフ ハイブリッド推進システム、水素エンジンのピストンを爆発燃焼の影響から保護する方法及び水素エンジンを動力とするヘリコプターのインペラーシャフト上に追加的な周期的トルクを与える方法
CN110159422A (zh) * 2019-07-03 2019-08-23 吕国良 活塞、转子内燃机、车辆、飞行器及船舶
CN111396198A (zh) * 2020-04-23 2020-07-10 张佰力 消除活塞发动机爆震的活塞限压方法及其使用的带有泄压功能的活塞

Also Published As

Publication number Publication date
DE102012005922B4 (de) 2017-03-02
DE102012005922A1 (de) 2013-09-26

Similar Documents

Publication Publication Date Title
WO2013143676A1 (fr) Procédé pour la suppression de pics de pression dans un cylindre d'un moteur à combustion interne à piston, et piston pour moteur à combustion interne à piston
EP1727983B1 (fr) Pompe haute pression, notamment destinee a un dispositif d'injection de carburant d'un moteur a combustion interne
EP0761995A1 (fr) Bielle
WO2014095143A1 (fr) Poussoir à galet pour une pompe, en particulier une pompe à carburant haute pression, et pompe équipée d'un poussoir à galet
DE102014220175A1 (de) Steuersystem
DE102014220177A1 (de) Vorrichtung zu der Veränderung von Verdichtungsverhältnissen
AT519305B1 (de) Längenverstellbare Pleuelstange mit einer Zylinder-Kolben-Einheit mit mehreren Kolbendichtungen
DE19917009A1 (de) Kolbenvakuumpumpe mit Gaseinlass und Gasauslass
DE60200671T2 (de) Mechanische Dekompressions- und Vakuumsablasseinrichtung
WO2016127985A1 (fr) Distributeur
EP3084197B1 (fr) Procédé de fonctionnement d'un moteur à combustion interne à pistons alternatifs
EP2110568A2 (fr) Bielle
DE102015215241A1 (de) Hydraulisch betätigtes Schaltventil
DE102016203559A1 (de) Hydraulisch betätigtes Schaltventil
DE102015223129A1 (de) Hydraulisch betätigtes Schaltventil
DE112011101636T5 (de) Kompressionsbremssystem
DE102015202538A1 (de) Hydraulisch betätigtes Schaltventil für eine Vorrichtung zur Veränderung des Verdichtungsverhältnisses einer Zylindereinheit
WO2016127984A1 (fr) Distributeur
DE102015213286A1 (de) Stützzylinder einer Vorrichtung zur Veränderung des Verdichtungsverhältnisses einer Zylindereinheit einer Hubkolbenbrennkraftmaschine
EP3267012B1 (fr) Clapet anti-retour pour une bielle de moteur à combustion interne à compression variable
WO2017194050A2 (fr) Système de commande et clapet antiretour destiné à être agencé dans un système de commande de ce type
DE19514918A1 (de) Kolben für Brennkraftmaschine
WO2020156915A2 (fr) Procédé pour introduire de l'air de combustion fortement précompressé dans une chambre de combustion d'un moteur à combustion interne, soupape d'admission haute pression à cet effet et moteur à combustion interne comprenant une telle soupape d'admission haute pression
DE102018107057A1 (de) Pleuel für eine Brennkraftmaschine mit variabler Verdichtung
DE102019106464A1 (de) Bremsvorrichtung für ein variables Ventiltriebsystem

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13712486

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13712486

Country of ref document: EP

Kind code of ref document: A1