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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7963108 | Multi-stage regulation of exhaust back pressure An exhaust system for a two-cycle engine includes an exhaust conduit having both a bypass port and a regulator port for discharging exhaust gases to atmosphere. The bypass port has a fixed size but the regulator port has a variable size that varies over the range of... | 06/21/2011 |
| 7866147 | Side branch absorber for exhaust manifold of two-stroke internal combustion engine A method of improving scavenging operation of a two-stroke internal combustion engine. The exhaust pressure of the engine is analyzed to determine if there is a pulsation frequency. Acoustic modeling is used to design an absorber. An appropriately designed side bran... | 01/11/2011 |
| 7818963 | Two-stroke lean burn gas engine with a silencer/catalytic converter A low emissions 2-stroke natural gas fueled engine includes at least one cylinder with an exhaust port in communication with a silencer/catalytic converter unit. The unit has first and second volumes in communication with each other. The first volume dampens spuriou... | 10/26/2010 |
| 7721537 | Exhaust assembly A system includes a combustion engine for a genset. The engine having an exhaust to emit water and exhaust gases from the exhaust and a sound-dampening device coupled between the exhaust and a muffler, the sound-dampening device including a tubular member having int... | 05/25/2010 |
| 7484361 | Exhaust gas purifying apparatus of motorcycle An exhaust gas purifying apparatus is provided for a motorcycle, configured to minimize engine output characteristics, and to raise the temperature of a catalyst to an activation temperature rapidly after a start of the engine, while not increasing a vehicle body si... | 02/03/2009 |
| 7438157 | Muffler for an exhaust gas system A muffler for an exhaust gas system of an internal-combustion engine has an exhaust gas inlet and a first flow pipe arranged inside the muffler and completely penetrating the muffler. A shut-off device is arranged in the first flow pipe, for the shutting-off and ope... | 10/21/2008 |
| 7437236 | Method for customizing the properties of a drive assembly in motor vehicles The object of the invention is to customize the properties of the drive assembly of motor vehicles comprising an intake system, an exhaust system, and/or an internal combustion engine. For this purpose, the mechanical properties of a serial drive assembly, the engin... | 10/14/2008 |
| 7367327 | Device and process for overfeeding compressed gas to an intake pipe of a turbocharged engine Method and device (1) for boosting an intake pipe (4) of a turbocharged engine (5) with compressed gas. The method includes storing gases in a vessel (12) at a pressure greater than atmospheric pressure and, afterwards in injecting the ga... | 05/06/2008 |
| 7364010 | Exhaust system for a motorcycle, and motorcycle including same A motorcycle, having both left and right mufflers, has an exhaust structure which enables an increase in the allowable margin through which the rear wheel is permitted to rise. A main exhaust pipe extends from an engine to one side of a shock absorber disposed on th... | 04/29/2008 |
| 7364012 | Dual-neck plane wave resonator A resonator and method of designing a resonator including a cavity having an effective length that exceeds λ/8 such that a standing wave having an anti-node will form in the cavity. First and second necks each having first ends are attached to and in fluid communic... | 04/29/2008 |
| 7350620 | Compact silencer There is disclosed a silencer for attenuating sound waves produced in a fluid that circulates through a fluid conveyer. The silencer comprises an expansion chamber that is in fluid communication with the fluid conveyer, and which carries sound waves there through; a... | 04/01/2008 |
| 7350351 | Exhaust system of engine of motorcycle An exhaust system of an engine of a motorcycle, including an exhaust pipe configured to extend in one of an upward direction and a downward direction from an exhaust port formed at a front portion of a cylinder head of the engine and to then be bent to extend in an ... | 04/01/2008 |
| 7347046 | Layout of catalyst of vehicle An exhaust system for a vehicle includes a muffler including end walls and a side wall connected to the end walls enclosing an interior space of the muffler. A first pipe is disposed within the interior space of the muffler and extends from one end of the muffler at... | 03/25/2008 |
| 7347045 | Motorcycle dynamic exhaust system The present invention provides a method of operating a dynamic exhaust system of a motorcycle engine. The method includes providing a valve in the exhaust system that is movable to direct exhaust gases between a first flow path through the exhaust system and a secon... | 03/25/2008 |
| 7347044 | Exhaust water trap A vertical exhaust water trap assembly has an outer housing and an internal housing or exhaust tube defining an annular water collection spaced therebetween bypassing a central exhaust flow area. ... | 03/25/2008 |
| 7334663 | Variable resonator A communicating pipe is disposed on an outer periphery of an air intake pipe, and a conduit is formed so as to be parallel to an air intake passage. A plurality of first communicating apertures are disposed through the air intake pipe so as to be arranged in a singl... | 02/26/2008 |
| 7334402 | Exhaust system with catalytic converter and motorcycle using the same A catalytic converter-incorporated exhaust system is provided, which includes an exhaust tube through which exhaust gases emitted from an engine flow, and a muffler fluidly connected with a downstream end of the exhaust tube. This muffler includes a muffler casing h... | 02/26/2008 |
| 7331422 | Vortex muffler A muffler includes an inner passage residing in an outer shell, and a stationary fan residing in the inner passage. The fan creates a vortex in a flow through the inner passage thus improving the flow and reducing the exhaust sound level. The inner passage includes ... | 02/19/2008 |
| 7328574 | Exhaust line and motor vehicle equipped therewith The invention concerns an internal combustion engine exhaust line comprising an active noise reduction system with variable choke device, continuously regulated based on the instantaneous discharge rate pulses of exhaust gases exiting from the internal combustion en... | 02/12/2008 |
| 7320378 | Exhaust control apparatus for a vehicle, and vehicle including same An exhaust control apparatus for a motorcycle includes an exhaust collection pipe, which collects and combines exhaust gas from a plurality of exhaust pipes, and an exhaust valve. The exhaust valve is operatively attached to the collection pipe and controls flow of ... | 01/22/2008 |
| 7310942 | Exhaust passage control valve Exhaust passage control valve 10 may comprise housing 30, valve member 20, and helical torsion spring 40. Housing 30 has an exhaust passage. Exhaust gas from an internal combustion engine flows through the exhaust passage of the ho... | 12/25/2007 |
| 7281605 | Mufflers with enhanced acoustic performance at low and moderate frequencies The invention relates to an exhaust silencer or muffler for an internal combustion engine, in particular a silencer with the damping characteristics of a resonator with the absorptive characteristics of a dissipative silencer. The silencer of the present invention p... | 10/16/2007 |
| 7282075 | Z-filter media with reverse-flow cleaning systems and methods A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such method... | 10/16/2007 |
| 7273130 | Device and method for active soundproofing, and power unit for aeroplanes A device for active noise reduction has a chamber, which is arranged laterally in relation to a gas flow, and a chamber opening constructed in one wall of the chamber. In the area of the chamber opening, a deflection device is adjustably arranged. The deflection dev... | 09/25/2007 |
| 7234297 | Motorcycle exhaust enhancers Sound and power are an important part of the motorcycling experience. From the early days people have been attempting to get it “right” and have tried numerous ways to achieve the best of both worlds. Generally one had to be sacrificed to some degree to get the ... | 06/26/2007 |
| 7228935 | Attachment pin for an exhaust-gas muffler The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes e... | 06/12/2007 |
| 7219764 | Exhaust muffler A muffler may comprise a casing having an internal volume, an inlet and an outlet, and a diverter plate dividing the internal volume into a first chamber and a second chamber. The diverter plate may comprise a baffle wall portion and at least one diverter having a d... | 05/22/2007 |
| 7174991 | Muffler for internal combustion engine The subject invention refers to a muffler comprising a muffler housing (1, 2) and generally a catalytic converter element (13) mounted in the housing, which muffler has at least one inner outlet (4) through which exhaust gases cleaned by the cat... | 02/13/2007 |
| 7171804 | Exhaust system for multi-cylinder engine, and straddle-type vehicle provided with same An exhaust system for a multi-cylinder engine can include a plurality of exhaust pipes with first upstream ends connected to exhaust openings of a multi-cylinder engine, and a collecting pipe connected to the second downstream ends of the exhaust pipes for collectin... | 02/06/2007 |
| 7152398 | Dual motorcycle exhaust system An exhaust system for an internal combustion engine having a first cylinder and a second cylinder from which pulses of exhaust gas exit and are routed along separate paths towards the exhaust mufflers. The exhaust system independently routes the pulses of exhaust ga... | 12/26/2006 |
| 7150147 | Exhaust system An exhaust system (1) is provided with an exhaust passage that allows exhaust gas discharged from an internal combustion engine to pass therethrough, an exhaust emission control unit including a catalyst (2,3) such as a three-way catalyst (27) t... | 12/19/2006 |
| 7146806 | Internal combustion engine cylinder and muffler assembly with catalytic converter A two cycle internal combustion engine cylinder having a piston chamber. The cylinder includes transfer ports; and an exhaust port divided into at least two sections. A first one of the sections has an aperture at the piston chamber with a top surface located closer... | 12/12/2006 |
| 7117974 | Electronically controlled dual chamber variable resonator An in-line resonator for an air induction system of an internal combustion engine is provided. The system includes a resonator housing, an upstream duct, a downstream duct, a conduit, a partition, and a sleeve. The conduit extends through the resonator housing conne... | 10/10/2006 |
| 7114330 | Vertical exhaust water trap assembly An exhaust water trap assembly has separated and spaced exhaust tubes, and a dome cap blocking entry of water to protect an upstream catalytic converter or soot filter. A first tube extends axially upwardly into a housing, and a second tube is spaced vertically ther... | 10/03/2006 |
| 7107142 | Automatic compliance device, automatic compliance method, automobile, and storage medium Parameters for control of engine operation are operated for each operating state for establishment of compliance, whereby the output values are made compliance targets. This compliance operation is performed by first determining the adjustment sequences and adjustme... | 09/12/2006 |
| 7093425 | Variable flow regulator for use with catalytic converters A variable flow regulator assembly includes a first stationary exhaust pipe, a second stationary exhaust pipe concentrically disposed within the first stationary exhaust pipe, and a movable exhaust pipe concentrically disposed between the first and second stationary... | 08/22/2006 |
| 7090048 | Method and apparatus for exhaust sound attenuation on engines with cylinder deactivation A system for attenuating exhaust noise from an engine with a first group of active cylinders and a second group of deactivatable cylinders includes a first exhaust manifold connected to the first group of active cylinders and a second exhaust manifold connected to t... | 08/15/2006 |
| 7077093 | Fresh gas supply system for a combustion engine The present invention relates to a fresh gas supply system for an internal combustion engine, in particular of a motor vehicle. A fresh gas distributor can be connected on the inlet side with a fresh gas feed line, and on the outlet side to an internal combustion en... | 07/18/2006 |
| 7079935 | Valve control for an engine with electromechanically actuated valves A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled to improve engine fuel economy. Further, the method can adjust valve operation to provide air-fuel charge motion and increase combustion stab... | 07/18/2006 |
| 7074097 | Marine exhaust system with an exhaust flow directing device An exhaust system for a marine engine provides a flow directing component that reacts to changes in engine speed to select an appropriate and advantageous direction of fluid flow through the flow directing component. At speeds below a first threshold speed magnitude... | 07/11/2006 |
