Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8156919 | Rotary vane engines with movable rotors, and engine systems comprising same Embodiments of rotary vane engines include rotors that rotate about an axis of rotation. The rotors can be moved in directions substantially perpendicular to the axis of rotation to vary expansion and/or compression ratios of the rotary vane engines. The ability to ... | 04/17/2012 |
| 8037863 | Positive displacement rotary vane engine The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric... | 10/18/2011 |
| 7757658 | Nagata cycle rotary engine An internal combustion rotary engine using vanes to create separate combustion chambers within the engine and capable of performing all four strokes of the Otto cycle (intake, compression, combustion and exhaust) in each separate combustion chamber. Each Otto cycle ... | 07/20/2010 |
| 7500463 | Shuba rotary internal combustion engine with rotating combustion chambers A rotary internal combustion engine has a hollow stator with inner cylindrical surface, and a right-prism rotor having rhombus-shape base with round angles and convex sides whose big diagonal equals the diameter of the stator. Two cavities within the rotor on opposi... | 03/10/2009 |
| 7441534 | Rotary engine system This rotary internal combustion engine has two rotatable vane type pistons mounted for axial rotation in a sealed casing. In an exemplary cycle, one piston is released to rotate at or prior to initiating combustion in the combustion space between the two pistons, wh... | 10/28/2008 |
| 7395805 | Single cycle elliptical rotary engine A rotary engine having a rotor housing with a bisected, offset elliptical interior wall and a rotor member disposed therein. Four rotor vanes reciprocate radially from within said rotor wherein the opposing vanes perform the same function simultaneously as they pass... | 07/08/2008 |
| 7314354 | Rotor machine The invention can be used for reversible pulsationless rotor high-pressure machines which can operate in pump and in motor mode. The inventive machine comprises a working chamber and an additional working chamber, separating jumpers and regulating elements. Said reg... | 01/01/2008 |
| 7258535 | Sealing features for a pump and ink jet printer mounting the pump A pump is provided with a housing, a rotor, and a separating member. The housing is formed by connecting two housing members. A first housing member has a cylindrical wall and a bottom wall, and the other end of the cylindrical wall is open. A second housing member ... | 08/21/2007 |
| 7210902 | Two-way air pump A two-way air pump includes a housing, an air flow controller, a check valve, and a valve actuator. The housing confines an air control chamber, and is formed with a valve hole, an air outlet and an air inlet. The air flow controller confines an air impeller chamber... | 05/01/2007 |
| 7192263 | Pump and ink jet printer mounting the pump The pump is provided with a housing 31, a rotor 40, and a separating member 50. Rotor 40 and separating member 50 are rotated within housing 40. Separating member 50 separates the cavity of housing 31 into a divided space 77a, a divided space 7b and a ... | 03/20/2007 |
| 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 |
| 7140853 | Axial vane rotary device An axial vane rotary power device comprises a rotor arranged to turn within an annular chamber having two end plates with mutually facing undulating cam surfaces. Vanes retained in angularly spaced slots in the rotor reciprocate axially as the rotor turns. Transfer ... | 11/28/2006 |
| 7118361 | Rotary pistons A rotary piston for use in pumps or motors, the piston having a radially movable vanes seated within the pumps rotor. The vanes are biased outwardly and forced inwardly by a cam action of the interior wall of the housing of the piston. Operation of the piston may be... | 10/10/2006 |
| 7080623 | Rotor for an axial vane rotary device An axial vane rotary device includes members defining an outer wing and an inner wing, both of which are affixed to the rotor for rotation therewith. The outer wing defines a surface that carries the radially outer ends of the vanes for axial movement thereon. The o... | 07/25/2006 |
| 7077098 | Vane-type piston, four-cycle multi-chamber rotary internal combustion engine A rotary internal combustion engine has a hollow stator with inner surface formed by two concentric cylindrical surfaces, which fluently transit one into the other via ramp surfaces, and a cylindrical rotor, having the same radius as smaller concentric surface of th... | 07/18/2006 |
| 7073477 | Gorski rotary engine A rotary engine is provided with solid vanes which extend through the rotor and engage opposing interior wall portions of the stator housing. A series of grooves in the interior wall permit the expanding exhaust gases to by-pass the minimal surface area of vanes pro... | 07/11/2006 |
| 7055327 | Plasma-vortex engine and method of operation therefor A plasma-vortex engine (20), consisting of a plasmatic fluid (22) circulating in a closed loop (44) encompassing a fluid heater (26), an expansion chamber (30), and a condenser (42), is provided. The expansion chamber (30... | 06/06/2006 |
| 6978758 | High Efficiency rotary piston combustion engine A computer controlled rotary piston engine includes a blower housing containing a rotatable impeller assembly, for pushing ambient air into the housing, and forcing the air to pass through a normally open valve mechanism into a combustion chamber. A plurality of fue... | 12/27/2005 |
| 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 |
| 6945218 | Rotary pistons A rotary piston for use in pumps or motors, the piston having a cylindrical rotor with radially movable vanes rotating within a housing, the movement of the vanes controlled by pins of the vanes travelling in races in the housing. ... | 09/20/2005 |
| 6883489 | Rotational engine A rotational engine that includes an annular cylinder block having an inner elliptical shape. A circular member having a number of cylinder heads is positioned centrally within the annular cylinder block. Upper and lower cylinder walls are positioned in recesses for... | 04/26/2005 |
| 6776136 | Elliptical rotary engine An elliptical potary engine having a cylindrical rotor that rotates within a cyclindrical housing having cycling chambers defined between a plurality of radially extending piston vanes disposed within vane channels within the rotor. During the rotation of the rotor,... | 08/17/2004 |
| 6772728 | Supercharged radial vane rotary device A family of sliding vane rotary power devices provides two and four-phase internal combustion engines, as well as serving as pumps and compressors. All of these devices have an improved donut shaped rotor assembly having an integrated axial pump portion, an end shaf... | 08/10/2004 |
| 6739307 | Internal combustion engine and method Internal combustion engine and method in which pistons on different rotors move relative to each other to form chambers of variable volume in a toroidal cylinder. The pistons move in stepwise fashion, with the pistons on one rotor travelling a predetermined distance... | 05/25/2004 |
| 6729296 | Variable vane rotary engine An improved rotary engine that harmoniously produces multiple, sequential cycles. A main housing is comprised of a concentric stator sandwiched between a front and an aft wall enclosing a cylindrical inner space. A network of combustors are stationed about the stato... | 05/04/2004 |
| 6722321 | Rotary engine A rotary engine including a cylinder shaped housing, a rotation body rotating in the housing, an oval guide part located at the center of the rotation body being prominently formed from the cylinder shaped housing. A axis of rotation being formed in monolithic struc... | 04/20/2004 |
| 6698395 | Hybrid rotary engine A hybrid engine including an electric generator, an electric motor, and a rotary internal combustion engine including pivoted vane elements mounted on a rotor and biased into engagement to sequentially form intake, compression, combustion and exhaust cham... | 03/02/2004 |
| 6684847 | Radial vane rotary device A family of sliding vane rotary power devices provides an internal combustion engine, a pump, a compressor, a fluid-driven motor, an expander device, a fluid-driven pump, a compressor or a throttling device. All of these devices have a rotor assembly with... | 02/03/2004 |
| 6659065 | Flexible vane rotary engine An internal combustion rotary engine that employs resilient, flexible vanes attached to a rotor that spins within an oval cavity in a housing. The vanes, which are long enough to extend slightly radially from the rotor by a distance beyond the interior su... | 12/09/2003 |
| 6659067 | Radial vane rotary device and method of vane actuation A family of sliding vane rotary power devices provides an internal combustion engine, a pump, a compressor, a fluid-driven motor, an expander device, a fluid-driven pump, and a compressor or a throttling device. All of these devices have an improved metho... | 12/09/2003 |
| 6659066 | Gear synchronized articulated vane rotary machine An independent radial vane rotary machine for the production of rotary mechanical power through internal combustion of liquid or gaseous fuel and employing intermeshed gearing for synchronization of major rotational components. The machine functions in ge... | 12/09/2003 |
| 6651609 | Nagata cycle rotary engine An internal combustion rotary engine using vanes to create separate combustion chambers within the engine and capable of performing all four Otto cycles--intake, compression, combustion and exhaust--in each separate combustion chamber. Each Otto cycle is ... | 11/25/2003 |
| 6598582 | Rotary heat engine An enclosed chamber external combustion rotary engine that converts thermal energy into mechanical energy, comprising of a tapered rotary disc with at least one perimeter quadrilateral vane oscillating inside enclosed expansion chambers formed on alternat... | 07/29/2003 |
| 6550442 | Rotary machine used as a four-cycle rotary combustion engine, a compressor, a vacuum pump, a steam engine and a high pressure water motor A new mechanical movement consisting of a main stationary cylinder into which there is a rotary cylinder configured to rotate about a fixed rotor axis, and through which a certain number of vanes are anchored at the center of the main cylinder. The vanes ... | 04/22/2003 |
| 6536403 | Direct drive rotary engine A direct-drive rotary engine having a rotor housing, the rotor housing having an interior wall structure which defines an open interior of the engine compartment, including an air intake region, a compression region, a combustion region, an expansion regi... | 03/25/2003 |
| 6401687 | Axial rotary engine The rotary axial engine comprises a housing 1 in which there is a wave-like annular channel 10 for a working medium and a rotor 5 is mounted, the peripheral portion of the rotor being in the channel 10. Slots are made in the peripheral portion of the roto... | 06/11/2002 |
| 6401686 | Apparatus using oscillating rotating pistons A motor, expander, compressor, or hydraulic device is formed with an oscillating rotating piston comprising a cylinder having an axis of rotation and end surfaces and defining an oscillating compression volume and an expansion volume. An axial sealing mem... | 06/11/2002 |
| 6386172 | Variable bandwidth striated charge for use in a rotary vane pumping machine A rotary vane combustion engine is provided that has a plurality of vane cells. This rotary vane combustion engine includes a rotor having a plurality of vanes; a stator enclosing the rotor to form a plurality of vane cells between the plurality of vanes;... | 05/14/2002 |
| 6321713 | Hot wall combustion insert for a rotary vane pumping machine A rotary vane combustion engine is provided that uses a hot wall combustion insert to provide the heat for combusting a fuel-air charge. The rotary vane combustion engine includes a rotor having a plurality of vanes, a stator enclosing the rotor to form a... | 11/27/2001 |
| 6283087 | Enhanced method of closed vessel combustion In a spark ignition (SI) turbine engine, the combustible fuel-air mixture is compressed by volume displacement and accelerated at high velocity into the ignition source, to reduce the combustion time relative to conventional SI engines, lowering the lean ... | 09/04/2001 |
