EP0025762B1 - Umbau einer Viertakt-Schiffsbrennkraftmaschine in eine Dampfmaschine - Google Patents

Umbau einer Viertakt-Schiffsbrennkraftmaschine in eine Dampfmaschine Download PDF

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Publication number
EP0025762B1
EP0025762B1 EP19800401306 EP80401306A EP0025762B1 EP 0025762 B1 EP0025762 B1 EP 0025762B1 EP 19800401306 EP19800401306 EP 19800401306 EP 80401306 A EP80401306 A EP 80401306A EP 0025762 B1 EP0025762 B1 EP 0025762B1
Authority
EP
European Patent Office
Prior art keywords
engine
steam
stroke
maritime
intake valves
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.)
Expired
Application number
EP19800401306
Other languages
English (en)
French (fr)
Other versions
EP0025762A1 (de
Inventor
André Julien Di Scala
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
Publication of EP0025762A1 publication Critical patent/EP0025762A1/de
Application granted granted Critical
Publication of EP0025762B1 publication Critical patent/EP0025762B1/de
Expired 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
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L5/00—Slide valve-gear or valve-arrangements
    • F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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

Definitions

  • the present invention relates to a two-stroke maritime steam engine obtained by conversion of a four-stroke type explosion engine.
  • This transformation makes it possible to obtain a steam engine of reduced volume, by the fact that it does not include the traditional flywheels of steam engines, which allows the adaptation of these engines mainly in fishing boats.
  • the rotation of this engine allows the use of existing boats, since it would be impossible for them to operate with conventional steam engines, because the latter, due to their low rotation, would require propellers much larger that could not be fitted in modern boats, because the propeller housing in the hull of such boats has an insufficient dimension calculated for an engine propeller with higher rotational speed and therefore of larger diameter low.
  • the invention therefore relates to a two-stroke maritime steam engine obtained by transformation of a four-stroke explosion type engine, comprising steam distribution means connected between a boiler and the individual intake ducts. from said engine for admitting steam to the intake valves and a double camshaft, the two-stroke steam engine being characterized in that the conventional intake valves of the four-stroke internal combustion engine are replaced by two perforated cylinders sliding axially relative to each other, one of the cylinders replacing the valve head and the other fixed being fixed in the cylinder head.
  • the camshaft for controlling the engine valves is provided with double eccentrics arranged to cause the exhaust valves to open substantially at each bottom dead center, and the intake valves feel . only at each top dead center, thus transforming the existing engine into a two-stroke engine.
  • the block with its pistons, the connecting rods, the crankshaft, as well as the cylinder head of the engine are preserved, as well as the propeller shaft, the telescope and the propeller existing in fishing boats traditional.
  • the modification relates to the intake manifold, the intake valves, the camshaft, the acceleration system and the regulator.
  • the intake chamber 1 is directly linked to the boiler (not shown) by the orifice 6 and transmits the steam to the distributor and to the accelerator 2, in the form of a drawer, located in the intake chamber and shown individually on FIG. 3 which, in turn leads it to the intake valves by individual ducts 7.
  • the distributor-accelerator assembly is produced by the cooperation of several diametrical holes of the accelerator 2 with corresponding ports of the intake chamber 1, so as to be able to control the flow of steam to the engine.
  • the valves were modified in the form of two small cooperating cylinders provided with multiple orifices (for example, mounted to slide axially with respect to each other). One of the two, 3, replaces the valve head and the other fixed, 4, is screwed into the cylinder head.
  • the orifices allow steam to enter the pistons in a uniform manner, which constitutes a device which has the purpose of containing the pressure of the vapor that the valve springs could not withstand.
  • the camshaft 5 with the double eccentrics allows the opening of the intake valves at each high point of the piston and the opening of the exhaust valves at each low point of the piston, which transforms the four-stroke engine into two-stroke engine.
  • a classic steam engine regulator will act on the accelerator axis 2.
  • the refrigeration system will receive preheating from the boiler to prevent condensation of the first steam at the start of operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (3)

1. Dampfbetriebener Zweitakt-Schiffsmotor, der durch Umwandlung aus einem Viertakt-Explosionsmotor entstanden ist, mit einer Einrichtung (1, 2) zum Verteilen von Dampf, die zwischen einem Dampfkessel und den einzelnen, zum Motor führenden Zuleitungen (7) angeordnet ist, um den Dampf den Einlaßventilen zuzuführen, und einer Doppelnockenwelle, dadurch gekennzeichnet, daß die klassischen Einlaßventile des Viertakt-Explosionsmotors durch zwei mit Bohrungen versehene Zylinder (3, 4) ersetzt sind, die axial gegeneinander verschiebbar sind und von denen der eine Zylinder (3) den Ventilteller ersetzt und der andere Zylinder (4) im Zylinderkopf befestigt ist.
2. Schiffsmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Nockenwelle (5) des Motors mit Doppelnocken versehen ist, um die Einlaßventile in jeder oberen Totpunkt-Stellung (OT-Stellung) des Kolbens zu öffnen und die Auslaßventile in jeder unteren Totpunkt-Stellung (UT-Stellung) des Kolbens zu öffnen.
3. Schiffsmotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Verteilereinrichtung für den Dampf ein Verteiler-Beschleuniger (1, 2) ist.
EP19800401306 1979-09-14 1980-09-12 Umbau einer Viertakt-Schiffsbrennkraftmaschine in eine Dampfmaschine Expired EP0025762B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR7905865 1979-09-14
BR7905865A BR7905865A (pt) 1979-09-14 1979-09-14 Aperfeicoamento introduzido em motor maritimo tipo quatro tempos a explosao

Publications (2)

Publication Number Publication Date
EP0025762A1 EP0025762A1 (de) 1981-03-25
EP0025762B1 true EP0025762B1 (de) 1984-05-16

Family

ID=4018100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800401306 Expired EP0025762B1 (de) 1979-09-14 1980-09-12 Umbau einer Viertakt-Schiffsbrennkraftmaschine in eine Dampfmaschine

Country Status (3)

Country Link
EP (1) EP0025762B1 (de)
BR (1) BR7905865A (de)
DE (1) DE3067858D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547624B1 (fr) * 1983-06-17 1987-08-07 Scala Andre Di Moteur a vapeur realise par transformation d'un moteur a combustion interne

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US807835A (en) * 1904-12-05 1905-12-19 David Walter Lyon Crude-oil engine.
US808210A (en) * 1904-12-14 1905-12-26 Edward S Palmbla Internal-combustion engine.
GB291517A (en) * 1927-03-03 1928-06-05 Harry Ralph Ricardo Improvements in or relating to compressors for air or gas
FR655202A (fr) * 1928-06-05 1929-04-16 Distribution par tiroirs pour moteurs à combustion interne
US2545946A (en) * 1946-08-02 1951-03-20 Oscar G Erickson Internal-combustion engine
US4102130A (en) * 1974-03-28 1978-07-25 Harry Charles Stricklin Converting an internal combustion engine to a single acting engine driven by steam or compressed air

Also Published As

Publication number Publication date
BR7905865A (pt) 1980-07-15
EP0025762A1 (de) 1981-03-25
DE3067858D1 (en) 1984-06-20

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