US3702602A - Two stroke rotary combustion engine - Google Patents

Two stroke rotary combustion engine Download PDF

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Publication number
US3702602A
US3702602A US119149A US3702602DA US3702602A US 3702602 A US3702602 A US 3702602A US 119149 A US119149 A US 119149A US 3702602D A US3702602D A US 3702602DA US 3702602 A US3702602 A US 3702602A
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United States
Prior art keywords
rotor
piston element
axis
cavity
plate
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Expired - Lifetime
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US119149A
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English (en)
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Umberto Lotesto
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Individual
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Individual
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    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • 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
    • F02B2730/00—Internal-combustion engines with pistons rotating or oscillating with relation to the housing
    • F02B2730/03—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with piston oscillating in a housing or in a space in the form of an annular sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • a two-stroke combustion engine characterized by the fact that it comprises a frame, a rotor rotably supported by said frame about a main axis, said rotor having a cavity, an intermediate internal wall dividing said cavity into two compartments situated at opposite parts of said main axis, a through seat provided in said intermediate wall, a plate-like piston element having one of its intermediate portions rotably housed in said seat about a second axis transverse to said main axis, said plate-like piston element having further wing portions extending radially from said intermediate portion, through all the cavity of said compartments, to divide in this way each of said parts into a front part defining the combustion chamber and a rear part, guide meanssuitable to guide in oscillation said plate-like piston element about a second axis, while said rotor rotates together. with said plate-like piston element about said main axis, ignition means opening in said combustion chamber and
  • the motor comprises a frame T of a casing form, in which the rotor R is housed rotably about the axis of the engine shaft P rigid to the rotor R.
  • the rotor has a substantially parallelepiped shape, with the exception of two opposite walls having an arcuated shape matching with the cylinder shutter 14, better described here in the following.
  • the rotor R has internally a cavity divided by a central wall R1 into two compartments A and B.
  • the central wall R1 has a through seat R2, to rotably house therein the intermediate portion C of a plate like piston element, having wing like elements 1 and 2 respectively, extending radially from the central portion C.
  • the cylindrical shape of the central portion C matches with the cylindrical seat R2 in such a way to separate by seal the compartment A from the compartment B.
  • the plate like piston element is rotably supported through pins 3 (FIG. 4) in suitable housings provided in the lateral walls 4 of the rotor R, defining in such a way an oscillation axis of the plate like piston element, perpendicularly extending to the motor shaft P.
  • the seats which house the pins 3 can be in the form of bearings of known type.
  • At the ends of the pins 3 rods 5 are articulater! at 6, whose free ends are guided in the spheroid bearings 7, born by a rotating element 8, rotatably sup ported by bearings 9 on the pin S, supported in the casing T.
  • the axis of rotation defined by the bearings 9 is parallel to the main axis of the engine shaft P, but arranged on an excentric axis with respect to this latter axis.
  • a duct 10 For the feeding of the combustion mixture there is provided in the frame T a duct 10 while in the corresponding wall of the rotor, are provided circular ports 1 1 through which there can enter the mixture into the suction chamber situated at the part opposite to the combustion chamber, inrelation to the plate like piston element.
  • some transfer grooves TR To allow the passage of the combustible mixture from the suction chambers into the combustion chambers, are provided some transfer grooves TR.
  • a discharge duct 13 In the combustion chambers spark plugs 16 are provided in the combustion chambers spark plugs 16 are provided. Fins l5 serve for the dissipation of heat.
  • the piston blade or wing l is in the dead upper point position 'while the piston blade or wing 2 is in the lower dead point position.
  • the suction chamber has had a maximum expansion and has sucked the combustible mixture, while the combustion chamber has been compressed to reach its minimum volume.
  • the combustion chamber has had the maximum expansion and has opened the discharge ports 12, so that the combustion gases discharge, while at the same time, through the transfer groove TR, the combustible mixture passes from the suction chamber B to the combustion chamber of the piston blade 2 which makes the combustion gases discharge and at the same time fills the combustion chamber.
  • the ignition phase has already occurred, with the usual preignition, so that the combustion of the combustible mixture transmits with its pressure a driving force to the piston plate 1 and to the rotor R with the intervention of the guide kinematism of the oscillating motion of the plate pistons.
  • the different elements assume the position of FIG. 2.
  • the body 8 pulled by the transmission rods 5, is passed from the horizontal position to a vertical position and in turn, acting by means of the transmission rods 5, has begun half an oscillation by the pin 3 so that the blade piston 1, shown by dotted lines in FIG. 2 is at half of its path.
  • the blade pistons 1 and 2 although carrying out an oscillation with consequent relative sliding with respect to the rotor, simply complete, with respect to the frame T, a rotation at an axis different from that of the shaft P and that is the axis I and I (FIG. 2).
  • FIG. 4 shows the cylindrical shutter 14, rigid with the rotor R, which occludes the discharge groove as soon as the discharge rotatable port 12 has concealed it in a way to avoid the return of gas or of sound waves.
  • the discharge groove 13 can be dimensioned in a way to allow a correct distribution.
  • the invention is intended not to be limited by the embodiment described.
  • these variations must be in harmony with the guide kinematism of the oscillation.
  • the kinematism illustrated in the embodiment can be modified, for example by directly connecting with mechanical transmission means the points I and I providing a seat in the central part C of the blade piston and suitably opening the rotor wall.
  • this invention has the object to simplify the general structure and perfecting the distribution diagram of the engine of the English inventor Cecil I-Iuges, which besides its extreme complex production (comprising even a compressor) and precariousness of operation, has chambers which were conceived so as cyclically to vary the volume while maintaining a low sliding velocity, and there is an absence of variations of velocity or inversions of movement in every engine element.
  • this invention does not consist in the way with which the masses move, given that this merit is attributed to Hughes, but in succeeding to move in a particular way the masses of a volumetric system completely different, in its design and for the different distribution which also allows a correct phasing without requiring an uneconomic compressor; furthermore this invention has a kinematism absolutely new due to it being conceived suitably to resolve the problem originating from the necessity of impressing that particular movement to a completely different structure.
  • the real essence of this invention consists in the conceiving of the main practical effects, which was to follow a circular orbit which is the center of gravity of each single piston.
  • the two stroke rotary engine consists of two rotating bodies, one within the other, rotating in the same direction and at the same speed, but about axes which even if starting from the same point form between them an angle, in a way that the two bodies placed one on the one and one on the other axis have a relative cyclic movement at each turn.
  • the inlet and outlet of the gases occurs through ports suitably provided on the rotor, therefore rotatable, communicating by a sufficient seal with grooves or ducts provided on the frame, arranged and dimensioned in a way to ensure the correct distribution, in Hughess engine the distribution was not correct.
  • This volumetric system by means of suitable modifications at the phasing of the distribution and suppression of the transfer grooves can be used as a fluid engine, the fluid coming from the outside already under pressure, or if itself is pulled in rotation by any engine first, can be used as an impeller or compressor of fluids.
  • I claim: l. 'A two stroke rotary combustion engine which comprises a frame, a rotor rotably supported by said frame about a main axis, said rotor having a cavity, an intermediate internal wall dividing said cavity into two compartments situated at opposite parts to said main axis, a through seat provided in said intermediate wall, a plate like piston element having one of its intermediate portions rotatablyhoused in said seat about a second axis transverse to said main axis, said plate like piston element having further some wing like portions extending radially from said intermediate portion to it, through all the cavity of said compartments, to divide in this way each of said parts into a front part defining a combustion chamber and a rear part, guide means suitable to guide in oscillation said plate like piston element about a second axis,
  • said transmission rods being connected by a spherical art ticulation with said rotatable element of support.
  • feed and discharge ducts comprise inlet and outlet ports provided in the cavity of said rotor and transfer grooves provided in the internal surfaces opposite to the rotor cavity swept by the corresponding surfaces of the piston element.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US119149A 1970-03-02 1971-02-26 Two stroke rotary combustion engine Expired - Lifetime US3702602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2136770 1970-03-02

Publications (1)

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US3702602A true US3702602A (en) 1972-11-14

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US119149A Expired - Lifetime US3702602A (en) 1970-03-02 1971-02-26 Two stroke rotary combustion engine

Country Status (4)

Country Link
US (1) US3702602A (enrdf_load_stackoverflow)
JP (1) JPS4946655B1 (enrdf_load_stackoverflow)
DE (1) DE2109493A1 (enrdf_load_stackoverflow)
FR (1) FR2083995A5 (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809025A (en) * 1973-02-02 1974-05-07 Harper Dev Corp Rotary engine having inclined piston and cylinder rotation axes
US3892504A (en) * 1974-01-03 1975-07-01 Wehr Elsie Deshely Rotary pump
DE2519911A1 (de) * 1974-07-11 1976-02-05 Willimczik Wolfhart Taumelscheiben- bzw. drehkolbenmaschine
US4024841A (en) * 1974-10-25 1977-05-24 Smith David B Rotary internal combustion engine with oscillating pistons
US4036566A (en) * 1974-05-07 1977-07-19 Konopeskas Leon A Fluid displacement apparatus
US4144865A (en) * 1974-05-07 1979-03-20 Konopeskas Leon A Fluid displacement apparatus
CN1043437C (zh) * 1992-10-30 1999-05-19 佩科拉里·费利切 容积式流体机械
US20100083932A1 (en) * 2006-09-26 2010-04-08 Larry Kathan Rotary internal combustion engine
US20160273446A1 (en) * 2015-03-18 2016-09-22 International Engine Intellectual Property Company, Llc Rotary engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102517A (en) * 1961-11-08 1963-09-03 Marquardt Corp Nutating disc internal combustion engine
US3229677A (en) * 1961-04-24 1966-01-18 Orbital Eng Pty Engines, pumps or the like
US3492974A (en) * 1968-01-30 1970-02-03 Heinrich Kreimeyer Rotary nutating power device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229677A (en) * 1961-04-24 1966-01-18 Orbital Eng Pty Engines, pumps or the like
US3102517A (en) * 1961-11-08 1963-09-03 Marquardt Corp Nutating disc internal combustion engine
US3492974A (en) * 1968-01-30 1970-02-03 Heinrich Kreimeyer Rotary nutating power device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809025A (en) * 1973-02-02 1974-05-07 Harper Dev Corp Rotary engine having inclined piston and cylinder rotation axes
US3892504A (en) * 1974-01-03 1975-07-01 Wehr Elsie Deshely Rotary pump
US4036566A (en) * 1974-05-07 1977-07-19 Konopeskas Leon A Fluid displacement apparatus
US4144865A (en) * 1974-05-07 1979-03-20 Konopeskas Leon A Fluid displacement apparatus
DE2519911A1 (de) * 1974-07-11 1976-02-05 Willimczik Wolfhart Taumelscheiben- bzw. drehkolbenmaschine
US4024841A (en) * 1974-10-25 1977-05-24 Smith David B Rotary internal combustion engine with oscillating pistons
CN1043437C (zh) * 1992-10-30 1999-05-19 佩科拉里·费利切 容积式流体机械
US20100083932A1 (en) * 2006-09-26 2010-04-08 Larry Kathan Rotary internal combustion engine
US8485156B2 (en) * 2006-09-26 2013-07-16 Larry Kathan Rotary internal combustion engine
US20160273446A1 (en) * 2015-03-18 2016-09-22 International Engine Intellectual Property Company, Llc Rotary engine
US9995209B2 (en) * 2015-03-18 2018-06-12 International Engine Intellectual Property Company, Llc Rotary engine

Also Published As

Publication number Publication date
JPS4946655B1 (enrdf_load_stackoverflow) 1974-12-11
DE2109493A1 (de) 1971-09-23
FR2083995A5 (enrdf_load_stackoverflow) 1971-12-17

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