EP0048784A2 - Endothermische Hochleistungskolbenkraftmaschine mit einem entsprechenden thermodynamischen Kreisprozess - Google Patents

Endothermische Hochleistungskolbenkraftmaschine mit einem entsprechenden thermodynamischen Kreisprozess Download PDF

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Publication number
EP0048784A2
EP0048784A2 EP80830103A EP80830103A EP0048784A2 EP 0048784 A2 EP0048784 A2 EP 0048784A2 EP 80830103 A EP80830103 A EP 80830103A EP 80830103 A EP80830103 A EP 80830103A EP 0048784 A2 EP0048784 A2 EP 0048784A2
Authority
EP
European Patent Office
Prior art keywords
piston
combustion
endothermic engine
thermodynamic cycle
ignition
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Withdrawn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
EP80830103A
Other languages
English (en)
French (fr)
Other versions
EP0048784A3 (de
Inventor
Natale Billitteri
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0048784A2 publication Critical patent/EP0048784A2/de
Publication of EP0048784A3 publication Critical patent/EP0048784A3/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Withdrawn legal-status Critical Current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

Definitions

  • This invention concerns a new high efficiency alternating endothermic engine based on a new thermodynamic cycle as well as eventual transformation of existing engines.
  • Detonation is harmful in that, as an instantaneous combustion (foreseen in the ideal OTTO cycle), it occurs at the wrong moment since it affords maximum pressure in the instant in which the piston is at zero velocity, with the connecting rod perpendicular to the crank arm of the drive shaft, and thus the engine moment is zero.
  • Dissociation occurs in the engine to create very rapidly alternating dissociations and reassociations as long as the specific dissociation temperature of the reagents is maintained. By continuing until the exhaust valve is opened, this leads to incomplete combustion since some of these reagents escape still unburned.
  • Oxidation inhibitors allow a higher compression ratio to be used, but slow down combustion velocity and cause atmospheric pollution, for the OTTO cycle.
  • This goal is achieved by keeping the combustion chamber volume constant for the period required for complete combustion of the operating fluid. In this way, higher maximum pressure is achieved for a pre-established and calculable period so as to obtain a more elevated tangential component and thus a higher engine torque for the same heat absorption and fuel consumption as in current engines.
  • the engine consists of a piston or other suitable device advancing with pre-established. and calculable movement as a function of the type and the required performance. This movement occurs through crank mechanisms, cams, rockers or the like positioned or controlled by any type of kinematic chain.
  • the invention tends to consider detonation as useful rather than harmful in that occurring after the Maximum Dead Point (M.D.P.), it does not shove the piston but rather pushes it without the characteristic spark knock. With the use of suitable devices, this may even lead to spontaneous ignition of suitably prepared fuel mixtures.
  • M.D.P. Maximum Dead Point
  • each element of the engine is composed of a cylinder with two diameters 15 and 16 separated by a diaphragm with a tight stuffing box 5 designed to protect the engine crank mechanism 10 with connecting rod 12 from contamination of the coolant and to seal pistons 1 and 2 in their phases of aspiration and compression of the scavaging air.
  • piston 3 connected through connecting rod 13 to crank arm 11, leading to a crank mechanism approximately 90° out of phase with that of 10.
  • the volume of combustion chamber 19 is kept nearly constant up to approximately 40° from the M.D.P., where ignition and the onset of combustion occur through spark plug 8.
  • the controlled ignition may be anticipated or retarded as in current engines, or the same effect may be achieved by regulating the air intake in the spontaneous ignition variants. Soon after, at the corrent moment, liquid is injected from 9 and in vapourizing lowers the temperature, limits dissociation-reassociation and causes the pressure to increase, using the temperature of the exhaust gases and cylinder walls as well. Contemporaneously, piston 1 sealed with diaphragm 5 begins aspiration through port or valves 18.
  • piston 2 covers the exhaust 7 and intake 6 ports, leading to wash out with previously compressed air.
  • piston 2 (which is joined to piston 1 via rod 14) covers ports 6 and 7. Liquid or gaseous fuel is then injected through injector 4, compression occurs and the cycle is repeated.
  • the wash out operation is greatly facilitated in the engine with two coupled cylinders at 180°, as in figure 1, and air feed is likewise favoured.
  • the above-mentioned coupling of the two cylindrical elements is effected through exhaust ports 17 and 7 for compressed air.
  • the diagram in figure 2 illustrates the thermodynamic cycle of the controlled ignition engine: 1-2, aspiration; 2-3, compression; 3-4, maintenance of the achieved pressure; 4-5, instantaneous combustion; 5-6, continuation of combustion; 6-7, expansion; 7-2-1, discharge.
  • Figure 2 also shows the spontaneous ignition possible using suitable fuels, in the dashed line variant 3-3'-5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP80830103A 1980-09-26 1980-12-01 Endothermische Hochleistungskolbenkraftmaschine mit einem entsprechenden thermodynamischen Kreisprozess Withdrawn EP0048784A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT49751/80A IT1193279B (it) 1980-09-26 1980-09-26 Motori endotermici alternativi ad alto rendimento con nuovo ciclo termodinamico
IT4975180 1980-09-26

Publications (2)

Publication Number Publication Date
EP0048784A2 true EP0048784A2 (de) 1982-04-07
EP0048784A3 EP0048784A3 (de) 1982-09-29

Family

ID=11271482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80830103A Withdrawn EP0048784A3 (de) 1980-09-26 1980-12-01 Endothermische Hochleistungskolbenkraftmaschine mit einem entsprechenden thermodynamischen Kreisprozess

Country Status (4)

Country Link
EP (1) EP0048784A3 (de)
JP (1) JPS5759028A (de)
AU (1) AU6693981A (de)
IT (1) IT1193279B (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE180037C (de) *
US2139457A (en) * 1935-08-09 1938-12-06 Patchett George William Internal combustion engine
FR891112A (fr) * 1941-11-08 1944-02-28 Sulzer Ag Moteur à combustion interne à pistons opposés
US3312206A (en) * 1964-12-09 1967-04-04 Radovic Dusan Reciprocating engines
US4157080A (en) * 1975-02-11 1979-06-05 Hill Craig C Internal combustion engine having compartmented combustion chamber
GB1516982A (en) * 1975-09-15 1978-07-05 Jones R Reciprocating piston heat engines
DE7609041U1 (de) * 1976-03-24 1976-11-11 Salomon, Kurt, 6078 Neu-Isenburg Wasser-benzin- oder diesel- betriebener kolbenmotor
US4169435A (en) * 1977-06-23 1979-10-02 Faulconer Edward L Jr Internal combustion engine and method
DE2823448A1 (de) * 1978-05-30 1979-12-06 Dana Corp Viertakt-brennkraftmaschine

Also Published As

Publication number Publication date
IT8049751A0 (it) 1980-09-26
IT1193279B (it) 1988-06-15
JPS5759028A (en) 1982-04-09
AU6693981A (en) 1982-04-01
EP0048784A3 (de) 1982-09-29

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