EP3587732A1 - Verdrängermaschine mit oszillierenden und rotierenden kolben - Google Patents

Verdrängermaschine mit oszillierenden und rotierenden kolben Download PDF

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Publication number
EP3587732A1
EP3587732A1 EP18180423.8A EP18180423A EP3587732A1 EP 3587732 A1 EP3587732 A1 EP 3587732A1 EP 18180423 A EP18180423 A EP 18180423A EP 3587732 A1 EP3587732 A1 EP 3587732A1
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EP
European Patent Office
Prior art keywords
rotor
stator
integral
crankshaft
oscillating
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.)
Pending
Application number
EP18180423.8A
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English (en)
French (fr)
Inventor
Piergiorgio Cazzin
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
Priority to EP18180423.8A priority Critical patent/EP3587732A1/de
Publication of EP3587732A1 publication Critical patent/EP3587732A1/de
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/40—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
    • F01C1/44—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements

Definitions

  • the present invention relates to a positive displacement machine with oscillating and rotary pistons.
  • Positive displacement machines are known, constituted by a fixed element (called stator) and one or more movable organs that together make, with the stator, cavities (or chambers) whose volume varies periodically with the system's general motion.
  • variable volume chambers are placed in communication through appropriate conduits with two environments containing a fluid at different pressures. If the fluid gives energy to the movable organs of the mechanism, this mechanism constitutes an engine. If vice versa the movable organs of the mechanism give energy to the fluid, the mechanism is a fluid machine. (as a pump, a compressor, a fan or a vacuum pump).
  • US 3 373 723 A refers to an internal combustion engine having a plurality of oscillating pistons. In this document there is no crankshaft but a "fixed" shaft 26 blocked by the flanges 14 and 20 of the stator and from these prevented from rotation therefrom.
  • US 3 320 936 A describes a rotary engine with three oscillating bodies.
  • the connecting rods' system is composed of a single crank 80 on which a body is articulated to three equiangolate radial spokes to 120°, on each of which is articulated one of the three connecting rods which in turn are articulated to one of the three oscillating organs.
  • US 1 715 490 A discloses a steam driven rotary engine in which a crankshaft is not provided.
  • the object of the present invention is to make a positive displacement machine which has a high efficiency both as endothermic and not endothermic engine and as compressor, pump etc.
  • the positive displacement machine with oscillating and rotary pistons consists substantially of a fixed stator 2, a rotor 12 and a crankshaft 36 both concentric to the stator 2.
  • the fixed stator 2 is in turn formed by a cylindrical body 4 to which two flanges 6 are applied laterally.
  • the flanges 6 are connected to the cylindrical body 4 by means of the screw rods 10.
  • stator 2 Inside the stator 2 is located in concentric position the rotor 12 formed by two symmetrical parts and precisely two annular flanges 14 reinforced by two discs 16.
  • Each oscillating bodies 22 is furthermore articulated, in a median position, by means of a gudgeon pin 26 at the small end 28 of a connecting rod 30 whose the big end 32 is articulated to the crank 34 of the crankshaft 36 ( Figure 4 ).
  • crankshaft 36 continues with a shaft extension 38 which is integral with a gear 40 that meshes by means of one or more idler gear 42 a gear 44 integral with the rotor.
  • the gears 40 and 44 have the same constructive characteristics and specular shape and share the same gear module with the idler gears 42.
  • This assembly of gears is contained by the box 62 integral with the stator 2.
  • the idler gears 42 turn around they own axis which is constrained to the box (62) by means of bearings.
  • the oscillating bodies 22 and the annular flanges 14 of the rotor 12 have the contiguous profiles and are made gas tight between them, it follows that, during operation, the free ends of each oscillating bodies 22 slide tightly and are gas-tight on the cylindrical surfaces of the shaped inserts 17, while the side plane faces of the oscillating bodies 22 slide tightly and are gas tight on the inner walls of the annular flanges 14 of the rotor 12.
  • the number of ports and seats provided in the body of the stator 4 may vary according to the number of phases of the cycle, type of cycle and practical use of the machine.
  • the rotor is connected to a drive shaft 60 constituting the power take-off of the machine, which shaft 60 is contained by the box 64 integral with the stator 2.
  • the connecting rod 30 has the small end 28 articulated to the gudgeon pin 26 of the oscillating body 22 and the large end 32 articulated to the crank 34 of the crankshaft 36.
  • crank 34 in an eccentric anticlockwise rotary motion, forces (via the connecting rod 30) the oscillating body 22 to perform, during rotation, an reciprocating rotary movement between a TDC (top dead center) and an BDC (bottom dead center) and vice versa.
  • This rotary oscillation has the pin 24 as the center of rotation and it is cyclic ie, the transition from the TDC (top dead center) to the BDC (bottom dead center) happens in the firsts 90 ° of rotation of the rotor 12 ( figs 5-8 ), and vice versa the transition from the BDC to the TDC happens in the successive rotation of 90° of the rotor 12 according to a cycle that is repeated continuously ( figs 8-11 ). Therefore the complete oscillation of the oscillating body 22 happens every 180 ° of rotation of the rotor 12 ( Figures 5-11 ), therefore every oscillating body will have two positions at TDC (top dead center) and two positions at BDC (bottom dead center) every turn of the rotor 12.
  • the air enters the machine through the intake port 48, filling the chamber 20 whose volume cyclically increases from a minimum value to TDC (top dead center) ( Fig. 5 ) to a maximum value to BDC (bottom dead center) ( fig 8 ).
  • This phase excluding of the friction of moving parts, does not absorb energy from the system.
  • the ratio between the initial (maximum) and final (minimum) chamber volume is called the compression ratio; the final volume of the chamber is called the combustion chamber (or clearance volume) 58.
  • This phase excluding of the friction of moving parts, absorbs energy from the system.
  • a fuel charge is dosed in the air previously compressed to forming a fuel-air mixture that burst with the spark of ignition spark plug 56, in turn commanded by a device suitably synchronized with the general motion of the system.
  • This combustion generates heat which further raises the temperature and pressure of the ignited mixture.
  • the pressure applied to the walls of the chamber 20 causes the expansion of the chamber itself (expansion which can occur only during the rotation of the rotor 12) whose volume increases from a minimum value TDC (in which the pressure is maximum) ( Fig. 11 ) to a maximum value BDC (where the pressure is minimal) ( Fig. 14 ).
  • This phase excluding of the friction of moving parts, provides energy to the system.
  • This phase excluding of the friction of moving parts, does not absorb energy from the system.
  • each oscillating body can perform the intake / compression / burst / exhaust cycle typical of a 4-stroke endothermic engine at each revolution of the rotor as indicated in Figures 5-17 .
  • each oscillating body can realize the two-stroke intake / compression cycle, typical of a fluid machine, twice with each revolution of the rotor12 as indicated in Figures 18 - 30 .
  • the machine can be used as a engine by adopting a cycle with the four phases described above because the burst / expansion phase provides the system with the energy necessary to overcome the friction generated by the moving parts as well as the passive forces that develop during air compression phase in a balance sheet that remains positive even after deducting these losses. ( Fig. 5-17 ).
  • the machine can be used as an operating machine by adopting a two-stroke cycle, such as the intake phase and the compression phase, typical of a fluid machine (as a compressor or as a pump, etc.).
  • a two-stroke cycle such as the intake phase and the compression phase, typical of a fluid machine (as a compressor or as a pump, etc.).
EP18180423.8A 2018-06-28 2018-06-28 Verdrängermaschine mit oszillierenden und rotierenden kolben Pending EP3587732A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18180423.8A EP3587732A1 (de) 2018-06-28 2018-06-28 Verdrängermaschine mit oszillierenden und rotierenden kolben

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18180423.8A EP3587732A1 (de) 2018-06-28 2018-06-28 Verdrängermaschine mit oszillierenden und rotierenden kolben

Publications (1)

Publication Number Publication Date
EP3587732A1 true EP3587732A1 (de) 2020-01-01

Family

ID=62841850

Family Applications (1)

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EP18180423.8A Pending EP3587732A1 (de) 2018-06-28 2018-06-28 Verdrängermaschine mit oszillierenden und rotierenden kolben

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EP (1) EP3587732A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1715490A (en) 1924-05-20 1929-06-04 William D Ballerstedt Rotary steam engine
US3320936A (en) 1964-12-23 1967-05-23 Edward R Phalen Bi-rotary engine with oscillating vanes
US3373723A (en) 1966-08-01 1968-03-19 Donald N. Blosser Internal combustion engine
DE2234950A1 (de) 1972-07-15 1974-01-31 Karl Speidel Mittelachsige rotationskolbenmaschine mit kreisfoermiger gehaeusekontur, vorzugsweise als verbrennungskraftmaschine nach dem otto- oder dieselprinzip
US4149833A (en) * 1975-06-16 1979-04-17 Idram Engineering Company Est. Rotary machine with pistons pivotally mounted on the rotor
FR2666377A1 (fr) * 1990-09-03 1992-03-06 Ducrot Gilbert Moteur rotatif a combustion interne.
FR2738285A1 (fr) * 1995-08-30 1997-03-07 Paris Laurent Guy Moteur rotatif thermique a rotor unique, portant quatre pistons oscillants actionnes par bielles et vilebrequin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1715490A (en) 1924-05-20 1929-06-04 William D Ballerstedt Rotary steam engine
US3320936A (en) 1964-12-23 1967-05-23 Edward R Phalen Bi-rotary engine with oscillating vanes
US3373723A (en) 1966-08-01 1968-03-19 Donald N. Blosser Internal combustion engine
DE2234950A1 (de) 1972-07-15 1974-01-31 Karl Speidel Mittelachsige rotationskolbenmaschine mit kreisfoermiger gehaeusekontur, vorzugsweise als verbrennungskraftmaschine nach dem otto- oder dieselprinzip
US4149833A (en) * 1975-06-16 1979-04-17 Idram Engineering Company Est. Rotary machine with pistons pivotally mounted on the rotor
FR2666377A1 (fr) * 1990-09-03 1992-03-06 Ducrot Gilbert Moteur rotatif a combustion interne.
FR2738285A1 (fr) * 1995-08-30 1997-03-07 Paris Laurent Guy Moteur rotatif thermique a rotor unique, portant quatre pistons oscillants actionnes par bielles et vilebrequin

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