# US 8,464,685 B2 · High performance continuous internal combustion engine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,685 B2 - Document ID: US8464685B2 - Status: Granted - Kind: B2 - Application number: 12/896,528 - Filed: 2010-10-01 - Published: 2011-10-27 - Granted: 2013-06-18 - Earliest claimed: 2010-04-23 - Assignees: Ionel Mihailescu - Applicants: Ionel Mihailescu - Inventors: Ionel Mihailescu - Web page: https://patentgrep.com/patent/US8464685B2 ## CPC - F02B 53/00: Internal-combustion aspects of rotary-piston or oscillating-piston engines (internal-combustion aspects of rotary pistons or outer members for co-operation therewith F02B55/00) - F02B 55/14: Shapes or constructions of combustion chambers - Y02T 10/12: Improving ICE efficiencies - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An internal combustion engine that includes a rotary head that has an expansion chamber and that includes intake and exhaust slots. A drum is disposed in close noncontacting proximity to the inner side of the rotary head. The drum and the rotary head are substantially rotationally symmetric about a common axis. Radially moveable plates respond to a mechanical control mechanism adapted to move each plate from a retracted position in which the plate is located entirely within the outer surface of the drum and an extended position in close proximity to an upper surface of the expansion chamber to substantially seal the expansion chamber. At least one of the plates is present between the intake slot and the exhaust slot such that the combustion gas within the expansion chamber exerts a force on the plate and the drum to produce rotational motion of the rotary head about the common axis. ## Claims ### Claim 1 A rotary device comprising: a rotary head having an expansion chamber defined in and extending along an inner side of a body of the rotary head between an intake slot in fluid communication with a source of combustion gas and an exhaust slot; a drum having a plurality of axial slots radially displaced over a circumference of the drum, an outer surface of the drum disposed in close noncontacting proximity to the inner side of the rotary head along substantially the entire outer surface of the drum, wherein the drum and the rotary head are substantially rotationally symmetric about a common axis, and wherein the rotary head is rotatable about the common axis; a plurality of radially moveable plates; and a mechanical control mechanism adapted to move each plate from a retracted position in which the each plate is located entirely within the outer surface of the drum and an extended position in which the each plate is in close proximity to an upper surface of the expansion chamber to substantially seal the expansion chamber, wherein at least one of the plates is substantially always present between the intake slot and the exhaust slot such that when the combustion gas is under pressure within the expansion chamber force is exerted on the at least one of the plates and the drum to produce rotational motion of the rotary head about the common axis. ### Claim 2 (depends on 1) The rotary device recited in claim 1 wherein the drum is free to independently rotate about the common axis, the force additionally producing a complimentary reactive force on the drum to produce rotational motion of the drum about the common axis in a direction opposite to the rotational motion of the rotary head such that the rotary head and drum each comprise working members operable to supply work. ### Claim 3 (depends on 1) The rotary device recited in claim 1 wherein the drum is held stationary relative to the common axis such that only the rotary head is rotatable about the common axis. ### Claim 4 (depends on 1) The rotary device recited in claim 1 wherein the rotary head and the drum are sealed with noncontacting labyrinthine seals. ### Claim 5 (depends on 4) The rotary device recited in claim 4 wherein the noncontacting labyrinthine seals comprise a plurality of grooves substantially perpendicular to an escape direction for the combustion gas under pressure. ### Claim 6 (depends on 1) The rotary device recited in claim 1 further comprising a closed track cam for positioning the plates, wherein the plates include sliders disposed for movement along the closed track cam. ### Claim 7 (depends on 6) The rotary device recited in claim 6 further comprising sliding bushings to receive the sliders, wherein the sliding bushings have a conically shaped surface at each end with a substantially cylindrical central portion. ### Claim 8 (depends on 6) The rotary device recited in claim 6 further comprising sliding bushings to receive the sliders, wherein: the sliders comprise slider boxes and a sliding rod; and oil is sealed in the slider boxes with compact seals, each such compact seal comprising a first collar tight on the sliding rod and a second collar tight on a bore of the sliding bushing with a flexible body therebetween that is deformable in response to movement of the sliding rod with respect to the bore of the sliding bushing. ### Claim 9 (depends on 1) The rotary device recited in claim 1 wherein the rotary device is adapted to be actuated by, or to actuate, a fluid, wherein the fluid is in liquid or gas form. ### Claim 10 (depends on 1) The rotary device recited in claim 1 wherein the expansion chamber comprises a plurality of expansion chambers substantially uniformly distributed about a circumference of the rotary head. ### Claim 11 A continuous internal combustion engine comprising: a combustor in fluid communication with a supply of fuel and a supply of oxidizer; an ignition device adapted to ignite a mixture of the fuel and oxidizer within the combustor to produce a pressurized combustion gas; a rotary device disposed external to the combustor, the rotary device comprising: a rotary head having an expansion chamber defined in and extending along an inner side of a body of the rotary head between an intake slot in fluid communication with the combustor to receive the pressurized combustion gas and an exhaust slot; a drum having a plurality of axial slots radially displaced over a circumference of the drum, an outer surface of the drum disposed in close noncontacting proximity to the inner side of the rotary head along substantially the entire outer surface of the drum, wherein the drum and the rotary head are substantially rotationally symmetric about a common axis, and the rotary head is rotatable about the common axis; a plurality of radially moveable plates; and a mechanical control mechanism adapted to move each plate from a retracted position in which the each plate is located entirely within an outer surface of the drum and an extended position in which the each plate is in close proximity to an upper surface of the expansion chamber to substantially seal the expansion chamber, wherein at least one of the plates is substantially always present between the intake slot and the exhaust slot such that when the combustion gas is under pressure within the expansion chamber, force is exerted on the at least one of the plates and the drum to produce rotational motion of the rotary head about the common axis. ### Claim 12 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the drum is free to independently rotate about the common axis, the force additionally producing a complimentary reactive force on the drum to produce rotational motion of the drum about the common axis in a direction opposite to the rotational motion of the rotary head such that the rotary head and drum each comprise working members operable to supply work. ### Claim 13 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the drum is held stationary relative to the common axis such that only the rotary head is rotatable about the common axis. ### Claim 14 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the rotary head and the drum are sealed with noncontacting labyrinthine seals. ### Claim 15 (depends on 14) The continuous internal combustion engine recited in claim 14 wherein the noncontacting labyrinthine seals comprise a plurality of grooves substantially perpendicular to an escape direction for the combustion gas under pressure. ### Claim 16 (depends on 11) The continuous internal combustion engine recited in claim 11 further comprising a closed track cam for positioning the plates, wherein the plates include sliders disposed for movement along the closed track cam. ### Claim 17 (depends on 16) The continuous internal combustion engine recited in claim 16 further comprising sliding bushings to receive the sliders, wherein the sliding bushings have a conically shaped surface at each end with a substantially cylindrical central portion. ### Claim 18 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the combustor comprises: a combustor expansion chamber in fluid communication with the intake slot of the rotary-head expansion chamber; a burning chamber enveloped by the combustor expansion chamber, a wall of the burning chamber including calibrate orifices to provide fluid communication between the burning chamber and the combustor expansion chamber; and a mixing chamber enveloped by the burning chamber, a wall of the mixing chamber including calibrate orifices to provide fluid communication between the mixing chamber and the burning chamber. ### Claim 19 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the combustor is fixedly attached to the rotary head and rotates with the rotary head in response to the force. ### Claim 20 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the oxidizer in the combustion chamber comprises compressed air. ### Claim 21 (depends on 20) The continuous internal combustion engine recited in claim 20 further comprising an air pump in fluid communication with the combustor and adapted to pump air into the combustor. ### Claim 22 (depends on 21) The continuous internal combustion engine recited in claim 21 further comprising an air accumulator in fluid communication with the combustor and in fluid communication with the air pump, wherein the air pump is adapted to pump air into the combustor via the air accumulator. ### Claim 23 (depends on 21) The continuous internal combustion engine recited in claim 21 wherein the air pump comprises an auxiliary rotary device that is actuated by exhausting of the combustion gas from the exhaust slot, wherein the auxiliary rotary device comprises a distribution valve disposed between the exhaust port of the rotary device and the auxiliary rotary device to control the flow of exhaust gas between the auxiliary rotary device and to the atmosphere to control the amount of air supplied from the air pump to the combustion chamber. ### Claim 24 (depends on 21) The continuous internal combustion engine recited in claim 21 further comprising a turbine, wherein the air pump is actuated by the turbine in response to actuation of the turbine by exhausting of the combustion gas from the exhaust slot. ### Claim 25 (depends on 21) The continuous internal combustion engine recited in claim 21 further comprising an auxiliary rotary device, wherein the air pump is actuated by the auxiliary rotary device in response to actuation of the auxiliary rotary device by the combustion gas directly from the combustion chamber. ### Claim 26 (depends on 11) The continuous internal combustion engine recited in claim 11 wherein the expansion chamber comprises a plurality of expansion chambers substantially uniformly distributed about a circumference of the rotary head. ### Claim 27 (depends on 25) The continuous internal combustion engine recited in claim 25, further comprising: a distribution valve disposed between the combustion chamber, the rotary device, and the auxiliary rotary device, wherein the distribution valve is operable to control the flow of combustion gases between the rotary device and the auxiliary rotary device to control the amount of air supplied to the combustion chamber.