Class 123/238 - Interengaging rotors

Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein the means to receive the combusted material
No. of patents: 37
Last issue date: 03/11/2008

Number	Title	Issue Date
7341042	Rotary positive displacement control system and apparatus A rotary positive displacement control system and apparatus includes a transmission assembly, at least a compression assembly and buffer assembly, and an expansion assembly, the buffer assembly disposed between the compression and expansion assembly. The compression...	03/11/2008
7171941	Positive displacement rotary device and method of use A positive displacement rotary device and method of use are provided. The rotary device includes coupled chamber halves with a drive disc having at least one drive plate rotatably engaged with the drive disc. The drive disc is mounted on a drive shaft and positioned...	02/06/2007
7059294	Orbital engine An engine is disclosed including at least one piston which is positioned within a toroidal piston chamber. A method of operating an engine is disclosed wherein a piston is advanced in a toroidal piston chamber past a first valve and the first valve is closed to form...	06/13/2006
7032565	Rotary combustion engine with lateral thrust between opposing and engaging combustion flywheels A modular revolving cylinder engine including at least two interdependent flywheels driven in rotation by a driving device (1) that rotates them in synchronization and in opposite directions. Each flywheel includes a plurality of equally spaced hollow pushrod...	04/25/2006
6988482	Dual rotor internal combustion engine An engine including a housing formed with a pair of side-by-side intersecting substantially cylindrical cavities, and a pair of counter-rotating power rotors rotatably mounted within the cavities. The pair of power rotors include intermeshing lobes that each define ...	01/24/2006
6955153	Asymmetric compete expansion rotary engine cycle A thermodynamic cycle for an internal combustion rotary engine is disclosed which achieves high efficiency through an asymmetry between the volume of air charge before compression and the volume of expanded air at the completion of expansion. The expanded volume is ...	10/18/2005
6935300	Rotary engine A rotary engine having a housing and a first and second intersecting cavity disposed therein. The rotary engine includes a rotor rotatably mounted in the first cavity, the rotor and the housing defining an annular chamber therebetween, and a piston extending radiall...	08/30/2005
6868822	Rotary piston engine A non-reciprocating engine comprising a hollow cylindrical shaft driver (13) located in a cylindrical stator cavity (14) of a stator. A number of expansion chambers (43) form between the outer wall of the shaft driver, the stator wall and movabl...	03/22/2005
6655344	Rotary gear device A rotary gear device comprises a housing a preferably multiple pairs of rotatable meshing gears in coaxial relation defining spaced teeth which extend helically in the direction of the axis of each gear. First chambers are formed by the meshing gears whic...	12/02/2003
6606973	Rotary engine A rotary engine utilizes an expansion chamber and an oscillating rotary piston to capture the energy of expanding combustion gases through out substantially all of each revolution of the piston. The movement of the oscillating rotary piston is guided by t...	08/19/2003
6543406	Rotary piston combustion engine The invention relates to a 4-phase rotary piston combustion engine. The embodiment of the engine consists of the engine body (1) where the main cylinder (2) is located; the piston (4) which revolves in the main cylinder and a cylindrical piston body is a ...	04/08/2003
6488004	Toroidal internal combustion engine and method for its thermo-stabilization A thermal design and method of operation of a rotary internal combustion engine having at least one housing, a rotor rotating within the housing, and a mechanism for combusting mixture of fuel air and steam supplied into the housing to drive the rotor, in...	12/03/2002
6273055	Rotary engine A combustion engine comprised of (i) at least one compression stage, (ii) at least one combustion unit, and (iii) at least one expansion stage is described. The compression and expansion stages include tongue and groove cylindrical rotors in sealing relat...	08/14/2001
6250277	Toroidal internal combustion engine A rotary engine with one or more toroidal chambers defined by rotors that rotate within cylindrical housings. Pistons project into the chambers from the rotors. The pistons cooperate with valves to define compression regions and expansion regions in the c...	06/26/2001
6132197	Toroidal internal combustion engine A rotary engine with one or more toroidal chambers defined by rotors that rotate within cylindrical housings. Pistons project into the chambers from the rotors. The pistons cooperate with valves to define compression regions and expansion regions in the c...	10/17/2000
5845617	Rotary gear pump with vanes A rotary gear pump comprises a housing and at least a pair of rotatable, meshing gears positioned within the housing. The meshing gears define spaced teeth which extend helically in the general direction of the axis of each gear rotation. A flow inlet and...	12/08/1998
5605124	Rotary screw internal combustion engine A rotary internal combustion engine including a rotary screw compressor for receiving and compressing a mixture of air and fuel, a rotary positive displacement pump for receiving the compressed air and fuel mixture from the rotary screw compressor and pum...	02/25/1997
5373819	Rotary piston machine and method of manufacturing piston The rotary piston (6) with rotation axis C performs a relative rotation in an annular cylinder (1) with rotation axis O which is displaced with respect to said piston axis (C) by an eccentricity e. The cylinder (1) comprises three chambers (2) having cyli...	12/20/1994
5329900	Rotary internal combustion engine The invention relates to an internal combustion engine having separate rotary compression and expansion sections and a combustion chamber (16) having valved inlet and outlet ports (21,22) communicating with the compression and expansion chambers respectiv...	07/19/1994
4971002	Rotary internal combustion engine An internal combustion engine includes a compressor and an expander of the type having a pair of multilobed, intermeshing rotors rotatably installed in a casing, and a combustion chamber communicating with said compressor and expander through their respec...	11/20/1990
4877385	Positive displacement rotary mechanism A positive displacement rotary mechanism has four identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define repetitive working space internal of the lobes having boundaries along ...	10/31/1989
4860705	Positive displacement rotary mechanism A positive displacement rotary mechanism has three and alternatively four identical rotary helical intermeshing lobes of continuously varying pitch that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive work...	08/29/1989
4848295	Axial flow rotary engine The disclosure is of an axial flow rotary internal combustion engine constructed in three sections, a compressor section, a combustion section and an expander section. The compressor section includes male and female rotors with complementary, single turn ...	07/18/1989
4841930	Positive displacement rotary mechanism A positive displacement rotary mechanism has three identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive working space internal of the lobes having boundaries alo...	06/27/1989
4782802	Positive displacement rotary mechanism A positive displacement rotary mechanism has three and alternatively four identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive working space internal of the lobe...	11/08/1988
4699101	Volumetric displacement fluid machine This machine can serve as a compressor or motor and, more specifically combines a compressor and a motor to constitute an internal combustion engine with compressed air injection. A toothed rotor is rotatable in a fluid displacement chamber and in sealing...	10/13/1987
4646693	Rotary engine A twin rotor engine has a combustion chamber in which the fuel and air mixture is periodically exploded, and an inlet valve selectively delivers the expanding gasses to an expansion chamber defined by a housing and by the rotors. An outlet valve serves to...	03/03/1987
4512302	Rotary engine A rotary internal combustion engine having separately housed compression and power rotors, and wherein there is a pair of sealing rotors positioned adjacent to diametrically opposite peripheral edges of each rotor to form two sealed pressure chambers in e...	04/23/1985
4432314	Internal combustion engine Internal combustion engine includes a rotary oxidizing gas compressor, a constant volume combustion chamber with pneumatically controlled intake and exhaust valves and a fuel injector, and a rotary combustion gas expander. Each of the rotary compressor an...	02/21/1984
4321897	Internal combustion engine Internal combustion engine includes a rotary oxidizing gas compressor, a constant volume combustion chamber with pneumatically controlled intake and exhaust valves and a fuel injector, and a rotary combustion gas expander. Each of the rotary compressor an...	03/30/1982
4236496	Rotary engine The major components of this rotary engine are two equal sized rotary units, the housing containing them along with associated ignition and cooling systems. Each of the rotary units consists of a shaft, gear, two outer compressor wheels, and one center po...	12/02/1980
4154208	Rotary engine Rotary engine having an annular space formed between the housing and the rotor, the annular space being divided into an intake-compression chamber and air expansion-exhaust chamber....	05/15/1979
4083663	Rotary engine with pistons and lenticular valves A rotary machine with lenticular pistons and valves usable for internal and external combustion engines, expansion motors and pumps. A flat central stator housing is provided with two lateral cover housings. A plurality of rotating elements enclose the in...	04/11/1978
4078526	Rotary piston engine A rotary piston engine whose two pistons each have one or more sectors of greater radial dimensions sealingly engaging inner walls of two cylindrical, intersecting cavities respectively receiving the pistons, and one or more sectors of smaller radial dime...	03/14/1978
4012903	Internal combustion engine An internal combustion engine comprises a housing defining an air inlet opening, a first set of rotatably mounted interengaging air intake and compression rotor wheels, and an air passageway connecting said air intake and compression rotor wheels to a sec...	03/22/1977
4003348	Rotary internal combustion engine A rotary internal combustion engine which comprises a casing, a main shaft journalled in said casing, a rotor mounted on said main shaft for rotation therewith and having in its periphery alternate twisted and sloped recesses and walls, shafts mounted in ...	01/18/1977
3935840	Rotary engine An engine unit operable independently or joined in multiples of two or more units for smoothing out the torque flow at slow speeds, each unit including a fuel-suction-compression assembly and a power generating assembly employing the same main shaft and s...	02/03/1976

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Class 123/238 - Interengaging rotors