WO2004111391A1 - Rotary engine - Google Patents

Rotary engine

Info

Publication number
WO2004111391A1
WO2004111391A1 PCT/IT2003/000487 IT0300487W WO2004111391A1 WO 2004111391 A1 WO2004111391 A1 WO 2004111391A1 IT 0300487 W IT0300487 W IT 0300487W WO 2004111391 A1 WO2004111391 A1 WO 2004111391A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
stator
rotary engine
engine
zone
Prior art date
Application number
PCT/IT2003/000487
Other languages
French (fr)
Inventor
Riccardo Altamura
Original Assignee
Riccardo Altamura
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 Riccardo Altamura filed Critical Riccardo Altamura
Priority to AU2003253299A priority Critical patent/AU2003253299A1/en
Publication of WO2004111391A1 publication Critical patent/WO2004111391A1/en

Links

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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/06—Heating; Cooling; Heat insulation
    • 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
    • F01C1/34—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 relative reciprocation between the co-operating members
    • F01C1/344—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 relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/105—Helium (He)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1055—Hydrogen (H2)

Definitions

  • the -invention concerns thermic engines.
  • Thermic engines are known to comprise:
  • the rotor is misaligned in relation to the cylindrical stator and comprises a plurality of flat transversal arms set at an equal angular distance one from another each resting in a longitudinal central seat, and a free-sliding quadrangular blade substantially as wide as the rotor.
  • Adequate means are provided to ensure the seal between rotor and stator.
  • the sealed chambers created by the arms and the blades are filled with gas.
  • the engine is substantially divided, by a diametral geometrical plane, into two zones kept at completely different temperatures and respectively called the hot zone and the cold zone.
  • each blade In one type of execution there are four arms set respectively at 90°.
  • the frontal seal of each blade is assured by an elastic means placed between the base of the seats of the blades and the blades themselves.
  • Said elastic means is preferably a compression spring.
  • the blades may be square or rectangular according to the type of execution.
  • Rotor surface between one arm and another is preferably concave.
  • the hot zone is heated by a fuel burner placed on the external cylindrical wall of the stator in that zone.
  • the hot zone is heated by circulation of hot fluid in a chamber situated around the external cylindrical wall of the stator in that zone.
  • the cold zone is created by circulation of cold fluid in a chamber situated around the external cylindrical wall of the stator in that zone.
  • the fluid is heated by passing it through the chamber of a solar panel.
  • the cold fluid is the water surrounding a boat in which the engine is installed, the cold water being drawn in ' by a pump connected by a pipe to the input of a chamber situated around the cylindrical wall of the stator, exit from the chamber being connected by a pipe to the water surrounding the boat.
  • the fluid is kept cold by circulating it in the radiator of a motor vehicle in which the engine is installed.
  • the cold zone is created by having a chamber fitted with heat-dissipating fins placed round the external cylindrical wall of the stator at the position of said cold zone.
  • the gas is helium or hydrogen according to the type of execution.
  • the diametrically-opposed respectively hot and cold zones cause the rotor to rotate associating the advantages of having the heat generated outside the engine with that of rotary engines in general, avoiding those forms of passive resistance set up by parts endowed with reciprocating motion.
  • Elimination of the explosions of fuel at the base of endothermic engines, and of pistons endowed with reciprocating motion ensuring a drastic reduction in weight, is of great advantage in aircraft where less weight and a reduction of vibrations are of vital importance.
  • the above engine therefore achieves generation of motion by bringing maximum pressure closer to mean pressure with decisive advantages in both weight and costs compared with engines at present in use.
  • FIG. 1 A cross section of the engine.
  • Fig. 2 The engine in Figure 1 having made a 45° rotation.
  • F 1 Jg. 3 The engine mounted in a motor vehicle, perspective.
  • Fig. 4 The engine mounted in a boat, perspective.
  • the engine 20 shown in Figures 1 and 2 comprises a stator 25, rotor 30 fitted onto the shaft 25, ssen as being misaligned 36 in relation to the axis of the stator, and four arms 40-43 set at 90° joined by an ample curve 45 following the arc of a circle.
  • the freely-sliding arms lie in longitudinal seats 47, the blades 50-53 being substantially rectangular each with a circle-arched apex 54.
  • Constant adherence between said apex 54 and the internal cylindrical surface of the stator is ensured by a compression spring ⁇ 55 inside each seat 47.
  • the rotor gives rise to four volumes 60-63 respectively characterized, at each quarter turn, by the upper volume on the left hand side (such as 60 in Figures 1 and 2) of lesser amplitude, and by the lower volume en the right hand side (such as 62) of greater amplitude compared with the other two volumes (such as 61 and 63).
  • Volumes 60-63 are filled with gas, preferably hydrogen or helium, through the valve 67.
  • the stator 25 is thermically divided into two zones, one on each side of a diametral geometric plane, seen horizontal in Figures 1 and 2, the upper zone being cold and the lower zone hot.
  • a semicylindrical chamber 90 in which circulates a cooling fluid that enters through the pipe 92 and flows out through the pipe 93.
  • a heat generator 70 Around the lower zone, . opposed to the upper one, is a heat generator 70.
  • a burner 71 Inside the generator is a burner 71 with nozzles 72, joined by a pipe union 75 to a fuel tank.
  • the cold generated in chamber 90 and the heat generated by burner 70 simultaneously determine expansion of volume 60 and compression of volume 62, and therefore continuous rotation of the rotor 30.
  • Volumes 61 and 63 allow passage of fluid from one volume to the other.
  • Figure 3 shows a motor vehicle 10 in which the engine 20 has been installed.
  • cooling liquid passes inside the radiator 95 against which air is blown by the helical fan 97, and from there flows into the upper cold chamber 90 through the pipe 92.
  • the burner placed inside the chamber 70 is fed through pipe 82 from the tank 80.
  • FIG. 1 The illustration shows the gear box 100, gear lever 101 , propeller shaft 102, differential 105 and axles 108.
  • ' Figure 4 shows application of an engine 115, similar to engine 20 already described, to a boat 110, with hull 112, said engine therefore having a stator 25, rotor 30 with four blades 50-53, orthogonal one to another.
  • the cold chamber 130 is substantially the same as the cold chamber 90 in the engine seen in Figures 2 and 3, but is placed lower down.
  • Cooling is obtained by continuous suction of the water surrounding the boat 110, through the hydraulic pump 135 fitted in the pipe 132, and intake point 136, discharge then taking place through pipe 138.
  • Heat is supplied to the upper zone by the burner 71 inside the chamber 125.
  • the illustration shows the pipe union 75 joining the pipe 126 to the fuel tank 127, and the air intake 76.
  • the shaft 35 of the rotor 30 is connected by a joint 118 to the shaft

Abstract

Rotary engine with the rotor misaligned in relation to the stator, and with a plurality of sealed blades freely sliding within radial arms set at an equal angular distance, said engine being diametrally divided into a hot zone and a cold zone, expansion and compression of gas contained in the chambers of the rotor taking place on their respectively crossing the hot zone and the cold zone thus maintaining a continuous thrust to rotate the rotor.

Description

Rotary engine embodying exothermic volumetric variation
The -invention concerns thermic engines. Thermic engines are known to comprise:
- internal combustion or endothermic engines that produce heat internally, such as those known as petrol-driven engines; - external combustion or exothermic engines that produce heat externally, such as those known as steam engines, and can be:
- reciprocating, having pistons connected to the drive shaft by means of a conrod-crank mechanism; - rotary, in which internally produced expanding gas applies pressure to the surfaces of a triangular-shaped rotor, rotating inside a cylindrical eight-shaped or epitrochoidal chamber. The invention now to be described is an engine in which the advantages of external combustion are associated to rotary motion. Subject of the invention is a rotary engine comprising a stator and a rotor.
The rotor is misaligned in relation to the cylindrical stator and comprises a plurality of flat transversal arms set at an equal angular distance one from another each resting in a longitudinal central seat, and a free-sliding quadrangular blade substantially as wide as the rotor.
Adequate means are provided to ensure the seal between rotor and stator. The sealed chambers created by the arms and the blades are filled with gas.
The engine is substantially divided, by a diametral geometrical plane, into two zones kept at completely different temperatures and respectively called the hot zone and the cold zone.
When the rotor chambers cross through the hot and cold zones, the gas respectively contained in said chambers expands and compresses thus causing continuous rotation of the rotor.
In one type of execution there are four arms set respectively at 90°. The frontal seal of each blade is assured by an elastic means placed between the base of the seats of the blades and the blades themselves.
Said elastic means is preferably a compression spring.
The lateral seal between rotor and blades is assured by means similar to the elastic bands on the pistons of reciprocating internal combustion engines.
The blades may be square or rectangular according to the type of execution.
Rotor surface between one arm and another is preferably concave. In one type of execution the hot zone is heated by a fuel burner placed on the external cylindrical wall of the stator in that zone.
In another type of execution the hot zone is heated by circulation of hot fluid in a chamber situated around the external cylindrical wall of the stator in that zone. In one type of execution the cold zone is created by circulation of cold fluid in a chamber situated around the external cylindrical wall of the stator in that zone.
In one type of execution the fluid is heated by passing it through the chamber of a solar panel. In one type of execution the cold fluid is the water surrounding a boat in which the engine is installed, the cold water being drawn in 'by a pump connected by a pipe to the input of a chamber situated around the cylindrical wall of the stator, exit from the chamber being connected by a pipe to the water surrounding the boat. In one type of execution the fluid is kept cold by circulating it in the radiator of a motor vehicle in which the engine is installed. In one type of execution .the cold zone is created by having a chamber fitted with heat-dissipating fins placed round the external cylindrical wall of the stator at the position of said cold zone. The gas is helium or hydrogen according to the type of execution. The invention offers evident advantages. The diametrically-opposed respectively hot and cold zones cause the rotor to rotate associating the advantages of having the heat generated outside the engine with that of rotary engines in general, avoiding those forms of passive resistance set up by parts endowed with reciprocating motion. Elimination of the explosions of fuel at the base of endothermic engines, and of pistons endowed with reciprocating motion ensuring a drastic reduction in weight, is of great advantage in aircraft where less weight and a reduction of vibrations are of vital importance. The above engine therefore achieves generation of motion by bringing maximum pressure closer to mean pressure with decisive advantages in both weight and costs compared with engines at present in use.
Characteristics and purposes of the invention will be made still clearer by the following examples of its execution illustrated by diagrammatically drawn figures.
Fig. 1 A cross section of the engine. Fig. 2 The engine in Figure 1 having made a 45° rotation. F1Jg. 3 The engine mounted in a motor vehicle, perspective. Fig. 4 The engine mounted in a boat, perspective. The engine 20 shown in Figures 1 and 2 comprises a stator 25, rotor 30 fitted onto the shaft 25, ssen as being misaligned 36 in relation to the axis of the stator, and four arms 40-43 set at 90° joined by an ample curve 45 following the arc of a circle. The freely-sliding arms lie in longitudinal seats 47, the blades 50-53 being substantially rectangular each with a circle-arched apex 54.
Constant adherence between said apex 54 and the internal cylindrical surface of the stator is ensured by a compression spring^ 55 inside each seat 47.
Lateral blade seal is ensured by devices, similar to elastic bands on the pistons in known reciprocating endothermic engines, though here not described for simplicity.
The rotor gives rise to four volumes 60-63 respectively characterized, at each quarter turn, by the upper volume on the left hand side (such as 60 in Figures 1 and 2) of lesser amplitude, and by the lower volume en the right hand side (such as 62) of greater amplitude compared with the other two volumes (such as 61 and 63).
Volumes 60-63 are filled with gas, preferably hydrogen or helium, through the valve 67.
The stator 25 is thermically divided into two zones, one on each side of a diametral geometric plane, seen horizontal in Figures 1 and 2, the upper zone being cold and the lower zone hot.
In the upper zone is a semicylindrical chamber 90 in which circulates a cooling fluid that enters through the pipe 92 and flows out through the pipe 93.
Around the lower zone, . opposed to the upper one, is a heat generator 70.
Inside the generator is a burner 71 with nozzles 72, joined by a pipe union 75 to a fuel tank.
There is also an air intake point 76 in the burner.
Referring to the operational phase shown in Figure 1 , the cold generated in chamber 90 and the heat generated by burner 70 simultaneously determine expansion of volume 60 and compression of volume 62, and therefore continuous rotation of the rotor 30.
Volumes 61 and 63 allow passage of fluid from one volume to the other. Figure 3 shows a motor vehicle 10 in which the engine 20 has been installed.
In the vehicle 10 cooling liquid passes inside the radiator 95 against which air is blown by the helical fan 97, and from there flows into the upper cold chamber 90 through the pipe 92.
The burner placed inside the chamber 70 is fed through pipe 82 from the tank 80.
The illustration shows the gear box 100, gear lever 101 , propeller shaft 102, differential 105 and axles 108. ' Figure 4 shows application of an engine 115, similar to engine 20 already described, to a boat 110, with hull 112, said engine therefore having a stator 25, rotor 30 with four blades 50-53, orthogonal one to another.
The cold chamber 130 is substantially the same as the cold chamber 90 in the engine seen in Figures 2 and 3, but is placed lower down.
Cooling is obtained by continuous suction of the water surrounding the boat 110, through the hydraulic pump 135 fitted in the pipe 132, and intake point 136, discharge then taking place through pipe 138.
Heat is supplied to the upper zone by the burner 71 inside the chamber 125.
The illustration shows the pipe union 75 joining the pipe 126 to the fuel tank 127, and the air intake 76.
The shaft 35 of the rotor 30 is connected by a joint 118 to the shaft
117 of the propeller 120. The engine functions substantially like that already described in
Figures 2 and 3.

Claims

1. Rotary engine comprising a stator and a rotor, characterized in that the rotor is misaligned in relation to the cylindrical stator comprising a plurality of flat transversal arms set at an equal angular distance each of which houses, in a central longitudinal seat, a quadrangular freely sliding blade substantially as wide as'the rotor, a seal being ensured between rotor and stator, the sealed chambers created by the arms and by the blades being filled with a gas, said engine being substantially divided by a diametral- geometrical plane into two zones maintained at completely different temperatures, here respectively called the hot zone and the cold zone, expansion and compression of the gas in the chambers of the rotor being determined when crossing the hot zone and the cold zone respectively, thereby determining continuous rotation of the rotor.
2. Rotary engine comprising a stator and a rotor as in claim 1 , characterized in that there are four arms each set at an angle of 90°.
3. Rotary engine comprising a stator and a rotor as in claim 1 , characterized in that the frontal seal of each blade is assured by an elastic means placed between the base of the seats of the blades and the blades themselves.
4. Rotary engine comprising a stator and a rotor as in claim 3,
■ characterized in that the elastic means is a compression spring.
5. Rotary engine comprising a stator and a rotor as in claim 1 , characterized in that the lateral seal of the rotor and of the blades is assured by means similar, to the elastic bands on the pistons of reciprocating internal combustion engines.
6. Rotary engine comprising a stator and rotor as in claim 1 , characterized in that the blades are square.
7. Rotary engine comprising a stator and rotor as in claim 1 , characterized in that the blades are rectangular.
8. Rotary engine comprising a stator and rotor as in claim 1 , characterized in that the surface of the rotor between one arm another is concave.
9. Rotary engine comprising a stator and rotor as in claim 1 , characterized in that the hot zone is obtained by means of a fuel-fed burner situated around the. external cylindrical wall of the stator at the position of said hot zone.
10. Rotary engine comprising a stator and rotor as in claim 1 , characterized in that the hot zone is obtained by circulation of hot fluid in a chamber situated around the external cylindrical wall of the stator at the position of said hot zone.
11. Rotary engine comprising a stator and rotor as in claim 1 , . characterized in that the cold zone is obtained by circulation of cold fluid in a chamber situated around the external cylindrical wall of the^ stator a the position of said cold zone.
12. Rotary engine comprising stator and rotor as in claim 10, characterized in that the fluid is heated by passing it through the chamber of a solar panel.
13. Rotary engine comprising stator and rotor as in claims 1 and 11 , characterized in that the cold fluid is the water surrounding a boat in which the engine is installed, water being taken in by a pump connected through a pipe to the entry to the chamber, exit from the chamber being connected through a pipe to the water round the boat.
14. Rotary engine comprising stator and rotor as in claims 1 and 11 , characterized in that the fluid is kept cold by circulating it in the radiator of a motor vehicle in which the engine is installed. .
15. Rotary engine comprising stator and rotor as in claim 1 ,.. , . ^ characterized in that the cold zone is obtained by the presence of a chamber fitted with heat-dissipating fins situated round the external cylindrical wall of the stator, corresponding to said cold zone.
16. Rotary engine comprising stator and rotor as in claim 2, characterized in that the gas is helium.
17. Rotary engine comprising stator and rotor as in claim 1 , characterized in that the gas is hydrogen.
PCT/IT2003/000487 2003-06-18 2003-07-31 Rotary engine WO2004111391A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003253299A AU2003253299A1 (en) 2003-06-18 2003-07-31 Rotary engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001226A ITMI20031226A1 (en) 2003-06-18 2003-06-18 EXOTHERMAL VOLUMETRIC VARIATION ROTARY MOTOR

Publications (1)

Publication Number Publication Date
WO2004111391A1 true WO2004111391A1 (en) 2004-12-23

Family

ID=30131233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2003/000487 WO2004111391A1 (en) 2003-06-18 2003-07-31 Rotary engine

Country Status (3)

Country Link
AU (1) AU2003253299A1 (en)
IT (1) ITMI20031226A1 (en)
WO (1) WO2004111391A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1913758A (en) * 1930-01-10 1933-06-13 Margaret A Kerr Rotary pump
US1922951A (en) * 1930-02-03 1933-08-15 William G Hawley Rotary pump
US3169375A (en) * 1963-01-10 1965-02-16 Lucas J Velthuis Rotary engines or pumps
US3698184A (en) * 1970-11-04 1972-10-17 George M Barrett Low pollution heat engine
DE2146051A1 (en) * 1971-09-15 1973-03-22 Horst Diemann RADIAL COMBUSTION ENGINE
US3774397A (en) * 1971-08-04 1973-11-27 Energy Res Corp Heat engine
US4089174A (en) * 1974-03-18 1978-05-16 Mario Posnansky Method and apparatus for converting radiant solar energy into mechanical energy
US4502284A (en) * 1980-10-08 1985-03-05 Institutul Natzional De Motoare Termice Method and engine for the obtainment of quasi-isothermal transformation in gas compression and expansion
US5325671A (en) * 1992-09-11 1994-07-05 Boehling Daniel E Rotary heat engine
US5954141A (en) * 1997-09-22 1999-09-21 Li; Fen-Lien Air driven motor for a tool

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1913758A (en) * 1930-01-10 1933-06-13 Margaret A Kerr Rotary pump
US1922951A (en) * 1930-02-03 1933-08-15 William G Hawley Rotary pump
US3169375A (en) * 1963-01-10 1965-02-16 Lucas J Velthuis Rotary engines or pumps
US3698184A (en) * 1970-11-04 1972-10-17 George M Barrett Low pollution heat engine
US3774397A (en) * 1971-08-04 1973-11-27 Energy Res Corp Heat engine
DE2146051A1 (en) * 1971-09-15 1973-03-22 Horst Diemann RADIAL COMBUSTION ENGINE
US4089174A (en) * 1974-03-18 1978-05-16 Mario Posnansky Method and apparatus for converting radiant solar energy into mechanical energy
US4502284A (en) * 1980-10-08 1985-03-05 Institutul Natzional De Motoare Termice Method and engine for the obtainment of quasi-isothermal transformation in gas compression and expansion
US5325671A (en) * 1992-09-11 1994-07-05 Boehling Daniel E Rotary heat engine
US5954141A (en) * 1997-09-22 1999-09-21 Li; Fen-Lien Air driven motor for a tool

Also Published As

Publication number Publication date
ITMI20031226A0 (en) 2003-06-18
AU2003253299A1 (en) 2005-01-04
ITMI20031226A1 (en) 2004-12-19

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