EP0333189A2 - Procédé de fonctionnement de moteurs à pistons à aspiration naturelle et à plusieurs cylindres - Google Patents

Procédé de fonctionnement de moteurs à pistons à aspiration naturelle et à plusieurs cylindres Download PDF

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Publication number
EP0333189A2
EP0333189A2 EP89104727A EP89104727A EP0333189A2 EP 0333189 A2 EP0333189 A2 EP 0333189A2 EP 89104727 A EP89104727 A EP 89104727A EP 89104727 A EP89104727 A EP 89104727A EP 0333189 A2 EP0333189 A2 EP 0333189A2
Authority
EP
European Patent Office
Prior art keywords
engine
section
cylinder
line
degree
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.)
Ceased
Application number
EP89104727A
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German (de)
English (en)
Other versions
EP0333189A3 (fr
Inventor
Hans Karl Leistritz
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 DE19883836432 external-priority patent/DE3836432A1/de
Priority claimed from DE19893905405 external-priority patent/DE3905405A1/de
Application filed by Individual filed Critical Individual
Publication of EP0333189A2 publication Critical patent/EP0333189A2/fr
Publication of EP0333189A3 publication Critical patent/EP0333189A3/fr
Ceased 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
    • F02B13/00—Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid
    • 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

Definitions

  • the invention relates to a working method of self-priming multi-cylinder piston engines through better final burnout in the engine combustion chambers.
  • the registration is based on the task of demonstrating a method by means of which the air procurement limits are increased, the amount of pollutants is reduced and at the same time the engine output can be increased significantly.
  • the double air intake creates the increased air intake, which the final burn-out in the combustion chambers of the multi-cylinder requires and which can be set precisely with the double flap system depending on the operating state.
  • the "abrupt ejection” is defined as a piston section ejection system, which is able to represent the increased potential for a piston engine loading process, as it increases the suction power in such a way that the test bench tuning already from the cold start of the engine, with today's serial designs loads up to close Generate the fat misfire limit with high pollutant levels in the exhaust gases, practically pollutant-free exhaust emissions by means of performance-friendly redesign of the fuel and air metering elements and accompanying measures.
  • This phenomenon can be represented constructively in connection with differentiating divergence / convergence either as a splitting of the ejection by means of a beam bundle into a plurality of gas jets, which, what is referred to as convergence, are brought into focus or as formation of various compression surges by means of an inclined wall and then also focusing .
  • the invention expressly formulates the construction of the thruster convergence volume from the quality of the line sections of the multi-cylinder piston section ejection, additional thermal energy by means of bevel surface reflection to form a leading pressure wave in focussing throughput sections for the purpose of final burnout and at the same time to increase the suction effect by means of a lorine nozzle-like room geometry to improve loading.
  • the multi-cylinder thruster according to FIG. 1 contains so-called abrupt ejection orifices per cylinder on its increasingly widening longitudinal extension directed towards the opposite inclined wall 411, which in this way bring an overall efficiency of their displacement energy in the nozzle interior K1.
  • the downstream part of this interior K1 is filled, which is initially tubular or straight or curved in an expanded form.
  • the subsequent, evenly approximately narrow constriction 42 merges into a long tube 52, which is designed to match the increase in engine output, for which into the ground groups of motor vehicles there are room conditions and this leads to a final noise reduction group after bypassing the rear axle.
  • the orifices 3233 protrude only insignificantly or not at all into the interior K1.
  • the inner walls 410/411 of room K1 are drawn as waveguide walls, in order to express that this is an energy-loss-free waveguide quality, with the loss of pulse energy, as is usually the case with engine exhaust pipes intended to be avoided.
  • the proportion of vibrations arising from the orifices 3233 is to be retained, since it intensively promotes all post-reactive conversions for which the chemical conditions are present in the exhaust gas, in particular when heat is generated.
  • the double flap system on the intake side in accordance with the features of claim 5 influences the higher-energy ejection system of the piston engine from the cold start than in the prior art in such a way that the minimum values achievable in all operating states are achieved in the warm-up phase in the CO and HC range through - assuming correct coordination - be maintained and not reduce the engine power, but the loss energies of the engine load that have been thrown out there so far go into much smaller fuel dosages on the intake side.
  • the engine tuning of the previous state of the art usually produces between 2 and 5 volume percent CO values both during warm-up and in all higher load conditions, for example of the gasoline engine, there are now radical reductions in CO emissions within a range between 0.03 and allows 0.3%.
  • the technology of the piston engine gas exchange process according to the invention increases the degree of air loading in the flushing system of the gasoline engine within all engine combustion chamber loads of fuel / air quantity by means of energetically new adjustment of the entire line system. This not only results in clean engine exhaust gases, but also the possibility of achieving improved engine performance by avoiding previous energy losses.
  • the line 14 starting from the flange area of the motor merges into a tube bundle 103 ff, which in the space 135, which widens conically, is designed so that the openings are directed towards the inner peripheral wall of a follow-up space 32 that tapers like a nozzle, so that Focus the wave and exhaust gas quantum after reflection.
  • a line 323 connects to the following space 32, the mouth 3233 of which is possibly connected to the lorine nozzle-like relaxation space K1 from FIG. 1 or to a collecting pipe. According to the exemplary embodiment in FIG.
  • FIG. 3 dispenses with the tube bundle 103 ff from FIG. 2 and represents a construction for realizing a divergence / convergence system without a tube bundle Piston distance shown at the end of the stroke of a four-stroke engine, in which the opening of the exhaust valve has already taken place. While the piston section is still filled with the more or less burned-out exhaust gas (dotted area), the pressure wave - shown as wavy lines - jumps out of the exhaust gas quantum immediately after opening the exhaust valve (30 to 60 ° crank angle before bottom dead center). It is a shock wave, an ejection of energy that spreads from the piston surface, which immediately begins the path to top dead center.
  • the task of abruptly ejecting the present overall development is to form a zone of limited volume increase within the valve overlap zone by means of a for the sum of the speeds and torques of the motor within a line section which is designed as a uniform pipe 14 and 323 Firstly, to boost the self-priming power into the engine combustion chamber as soon as the intake valve opens before the end of the extension stroke and secondly to convert the kinetic energy of the ejection into thermal energy.
  • the measure of the invention consists in creating a throughput section of optimal energy conservation which does not have the friction losses which occur when the gas flow of a pipe is broken down into several pipes of substantially smaller diameter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP89104727A 1988-03-18 1989-03-16 Procédé de fonctionnement de moteurs à pistons à aspiration naturelle et à plusieurs cylindres Ceased EP0333189A3 (fr)

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
DE3809123 1988-03-18
DE3809123 1988-03-18
DE3812385 1988-04-14
DE3812385 1988-04-14
DE3813595 1988-04-22
DE3813595 1988-04-22
DE3830128 1988-09-05
DE3830128 1988-09-05
DE3831704 1988-09-17
DE3831704 1988-09-17
DE19883836432 DE3836432A1 (de) 1988-09-05 1988-10-26 Weiterentwicklung des arbeitsverfahrens von brennkraftmaschinen, die als selbstansaugende kolbenmotoren (hub- und rotationskolben) ausgefuehrt sind
DE3836432 1988-10-26
DE3900061 1989-01-03
DE3900061 1989-01-03
DE3905405 1989-02-22
DE19893905405 DE3905405A1 (de) 1988-03-18 1989-02-22 Weiterentwicklung des arbeitsverfahrens von brennkraftmaschinen, die als selbstansaugende kolbenmotoren (hub-oder rotationskolben) ausgefuehrt sind

Publications (2)

Publication Number Publication Date
EP0333189A2 true EP0333189A2 (fr) 1989-09-20
EP0333189A3 EP0333189A3 (fr) 1990-04-25

Family

ID=27570594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104727A Ceased EP0333189A3 (fr) 1988-03-18 1989-03-16 Procédé de fonctionnement de moteurs à pistons à aspiration naturelle et à plusieurs cylindres

Country Status (1)

Country Link
EP (1) EP0333189A3 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR833256A (fr) * 1937-06-11 1938-10-18 Brev & Procedes Coanda Sa D Et Perfectionnements à l'échappement des gaz dans les moteurs à vapeur, à gaz ou àcombustion interne
DE701004C (de) * 1937-12-02 1941-01-06 Eberspaecher J Abgassammler fuer Brennkraftmaschinen
FR860897A (fr) * 1938-10-19 1941-01-25 Brev Et Procedes Coanda Sa D E Dispositif d'échappement pour moteurs à combustion interne
US2841951A (en) * 1954-11-05 1958-07-08 Richard T Whitcomb Apparatus for reducing exhaust gas pressure in internal combustion engines
US3491534A (en) * 1968-04-24 1970-01-27 Trans Dapt Of California Inc Exhaust manifold
DE3638476A1 (de) * 1986-05-28 1988-01-28 Leistritz Hans Karl Verfahren zur behandlung der abgase bei kolbenmotoren
DE3700182A1 (de) * 1986-11-25 1988-06-01 Leistritz Hans Karl Hubkolbenmotor mit verfahren zur reaktionsverbesserung in motorbrennraeumen und nachreaktionsstrecken
DE3707778A1 (de) * 1987-01-06 1988-09-22 Leistritz Hans Karl Kolbenmotor mit verfahren der reaktionsverbesserung in motorbrennraeumen und nachreaktionsstrecken

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR833256A (fr) * 1937-06-11 1938-10-18 Brev & Procedes Coanda Sa D Et Perfectionnements à l'échappement des gaz dans les moteurs à vapeur, à gaz ou àcombustion interne
DE701004C (de) * 1937-12-02 1941-01-06 Eberspaecher J Abgassammler fuer Brennkraftmaschinen
FR860897A (fr) * 1938-10-19 1941-01-25 Brev Et Procedes Coanda Sa D E Dispositif d'échappement pour moteurs à combustion interne
US2841951A (en) * 1954-11-05 1958-07-08 Richard T Whitcomb Apparatus for reducing exhaust gas pressure in internal combustion engines
US3491534A (en) * 1968-04-24 1970-01-27 Trans Dapt Of California Inc Exhaust manifold
DE3638476A1 (de) * 1986-05-28 1988-01-28 Leistritz Hans Karl Verfahren zur behandlung der abgase bei kolbenmotoren
DE3700182A1 (de) * 1986-11-25 1988-06-01 Leistritz Hans Karl Hubkolbenmotor mit verfahren zur reaktionsverbesserung in motorbrennraeumen und nachreaktionsstrecken
DE3707778A1 (de) * 1987-01-06 1988-09-22 Leistritz Hans Karl Kolbenmotor mit verfahren der reaktionsverbesserung in motorbrennraeumen und nachreaktionsstrecken

Also Published As

Publication number Publication date
EP0333189A3 (fr) 1990-04-25

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