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| Number | Title | Issue Date |
| 8122861 | Two-stroke cycle combustion engine of air scavenging type To provide a two-stroke cycle combustion engine of an air scavenging type, in which not only can transit from the idling condition to the rapid accelerating condition take place smoothly, but the combustion engine can be smoothly started, there are provided scavengi... | 02/28/2012 |
| 7395790 | Reed valve breather for evolution engine A reed valve assembly is provided with a body, at least one flexible member, and at least one rigid member. Preferably, the at least one flexible member has a periphery so as to substantially cover opening(s) in the body when positioned adjacent to the body, and the... | 07/08/2008 |
| 7341040 | Supercharged two-cycle engines employing novel single element reciprocating shuttle inlet valve mechanisms and with a variable compression ratio This invention relates to novel reciprocating shuttle inlet valves, effective with every type of two-cycle engine, from small high-speed single cylinder model engines, to large low-speed multiple cylinder engines, employing spark or compression ignition. Also permit... | 03/11/2008 |
| 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 |
| 7246577 | Reciprocating piston engines A reciprocating piston engine has a cylinder with a transfer port and an exhaust port, wherein the transfer port and exhaust port are at least partially coincident and are provided with a port valve. The engine includes a pump having a divided chamber therein, one s... | 07/24/2007 |
| 7198011 | Internal combustion engine There is provided a two stroke internal combustion engine comprising a cylinder and a piston. The cylinder has a cylinder head, a wall and a crankcase. The wall extends between the cylinder head and the crankcase. The cylinder head has a first opening and a second o... | 04/03/2007 |
| 7188622 | Filtering face mask that has a resilient seal surface in its exhalation valve A filtering face mask 10 that has a mask body and a new exhalation valve 14. The mask body is adapted to fit at least over the nose and mouth of a person to help define an interior gas space when the mask is worn. The exhalation valve 14 permits... | 03/13/2007 |
| 7146941 | Rotary valve A rotary valve which can securely shut off a fluid flow without improving a working accuracy of an outer peripheral surface of a valve and an inner diameter portion of a body, and which has a simple and compact structure, wherein a gap is formed between the outer pe... | 12/12/2006 |
| 7111599 | Valve-driving system of internal combustion engine and valve-driving apparatus A valve-driving system, which is applied to an internal combustion engine having a plurality of cylinders, for driving an intake or exhaust valve provided in each cylinder, comprising: a plurality of valve-driving apparatuses, each of which is provided for at least ... | 09/26/2006 |
| 7107962 | Carburetor hat for forced induction system A forced air induction system (10) constructed in accordance with the principles of a preferred embodiment of the present invention and configured for supplying compressed induction fluid to an internal combustion engine (E) for powering a vehicle (V) is disc... | 09/19/2006 |
| 7059344 | Discharge valve mechanism for variable displacement compressor A discharge valve mechanism has a plurality of discharge openings. The discharge openings are placed in an open or closed state by a plate-like valve element. Each of the discharge openings is formed at a respective location between a base end side and a leading end... | 06/13/2006 |
| 7028649 | High flow reed valve assembly for a two-cycle engine A reed valve assembly in certain embodiments of the present teachings may include one or more of the following features: (a) a W shaped reed cage assembly having at least two reed cages, each reed cage having outer air ports and inner air ports wherein the inner air... | 04/18/2006 |
| 7011111 | Sealing elements for compressor valves In sealing elements (3, 3′, 3″) for automatic compressor valves, composed of synthetic material (12) having embedded fiber reinforcement (11), the fiber reinforcement (11) and/or the surrounding synthetic material (12) in the f... | 03/14/2006 |
| 6976457 | Two-stroke engine having a membrane valve integrated into the transfer channel A mixture lubricated two-stroke engine includes a cylinder (4) having a cylinder head (3) and a cylinder bore (5) open to the crankcase (6). A piston (7) is displaceably arranged in the cylinder bore (5). The piston (7 | 12/20/2005 |
| 6976458 | Two-stroke engine A two-stroke engine (1) has a combustion chamber (3) configured in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5) and drives a crankshaft (7) which is rotatably journalled in a crankcas... | 12/20/2005 |
| 6932032 | Two-stroke engine A two-stroke engine (1) has a combustion chamber (3) disposed in a cylinder (2). The combustion chamber (3) is delimited by a reciprocating piston (5). The piston (5) drives a crankshaft (7) via a connecting rod (6... | 08/23/2005 |
| 6899066 | Valve assembly A valve assembly for a motorcycle engine including a valve body and a plurality of reed valve constructions. The valve assembly is configured for receipt within an aperture of an engine wall extending between the crankcase and the cam chest of the engine. In particu... | 05/31/2005 |
| 6715455 | Internal combustion engine An internal combustion engine with at least one control element for variation of the flow cross-section of a charge exchange passage, which control element is automatically adjustable in accordance with the engine mode by means of an actuating member and a connectin... | 04/06/2004 |
| 6615774 | Adjustable pressure actuated fuel/air diaphragm valve assembly A diaphragm valve assembly includes a diffusing screen, and a generally spherical lightweight membrane that provides a 360° circular seal. Spring loading enables variable resistance to be placed on the seal to allow the operator to adjust the internal pr... | 09/09/2003 |
| 6609535 | Reed valve and method of making same A reed valve includes a generally wedge shaped reed cage or block defining a fluid flow passage and having substantially coplanar discharge ports. A reed is mounted at a common hinge end to the reed cage and has a plurality of petals each of which overlie... | 08/26/2003 |
| 6546901 | Two cycle internal combustion engine A crankshaft driven positive displacement gear type air compressor enclosed within the engine housing forces air in between the compressor and reciprocating means. At approximately top dead center fuel is injected into the engine and burns. The high press... | 04/15/2003 |
| 6474275 | Two-stroke internal combustion engine provided with a supercharging device and exhaust gas partial recycling The invention concerns a two-stroke engine comprising a cylinder (1) wherein moves a piston (2), exhaust (6) and intake (7) devices and a blower (9) for blowing in the cylinder (1) a scavenging air stream , wherein an additional volume (10) communicates w... | 11/05/2002 |
| 6145483 | Two-cycle internal combustion engine A two-cycle internal combustion engine includes a control valve disposed in a communicating passage for communicating the combustion chamber to a chamber portion adjacent to the combustion chamber. The control valve controls the opening and closing of the... | 11/14/2000 |
| 6119640 | Internal combustion engine with slot-type gas distribution The present invention pertains to the field of engine construction and relates to internal combustion engines with scavenging and more precisely to two-stroke engines. At the beginning of the exhaust stroke, the exhaust gases are expelled from the engine ... | 09/19/2000 |
| 6095103 | Exhaust control valve structure for 2-cycle engine An exhaust passage for connecting to an exhaust port of a cylinder is provided. The exhaust passage includes a first path extending in a direction generally orthogonal to the central axis of the exhaust port. A second path connects the first path and the ... | 08/01/2000 |
| 6085703 | Stratified scavenging two-cycle engine The present invention is a stratified scavenging two-cycle engine which has a more compact structure. The stratified scavenging two-cycle engine includes a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a)... | 07/11/2000 |
| 6065432 | Two-stroke engine operation method and internal combustion two-stroke engine The present invention relates to operation processes of two-stroke engines. A two-stroke engine uses a slide valve (10) so that the inlet-outlet passage (9) connected to the exhaust manifold (18) may be connected to the inlet pipe after the outlet of exha... | 05/23/2000 |
| 6021748 | Planing boat engine A control arrangement for a planing-type boat having an engine powering a water propulsion device is disclosed. The engine has at least one combustion chamber, an exhaust port leading from the combustion chamber, and an exhaust timing valve cooperable wit... | 02/08/2000 |
| 6016777 | Exhaust valve holder An exhaust valve holder including accommodations for additional sealing and resistance to movement. This includes a groove wide enough for two sealing o-rings, a groove or slot which does not run the circumference of the holder and binds against a tab of ... | 01/25/2000 |
| 5960749 | Two-cycle internal combustion engine A control valve is disposed in a communication passage for communication between a combustion chamber and a chamber portion adjacent to the combustion chamber, and through the communication passage at least one of a fuel and an air-fuel mixture, and a hig... | 10/05/1999 |
| 5950581 | Two-cycle internal combustion engine A two-cycle internal combustion engine includes a control valve disposed within a communicating passage between the combustion chamber and a chamber portion adjacent to the combustion chamber. The control valve is for controlling the opening and closing o... | 09/14/1999 |
| 5904122 | Gas exhausting systems for motorcycle engines The present invention is referred to an exhausting valve lid for motorcycles comprising a lid body including several orifices for fastening said lid to the motorcycle engine. Said lid includes means for controlling the force to be applied to the exhaustin... | 05/18/1999 |
| 5894821 | Air valve system combined with a distribution chamber According to the invention, the valve comprises a cylindrical body (21) in a housing (21), for receiving one end of a return spring while the end is in contact with the case. The valve also includes two ribs (22, 23) for connection to a sealing plate (25)... | 04/20/1999 |
| 5870982 | Intake valve of a supercharged two stroke engine A two stroke supercharged internal combustion engine having a intake valve positioned in and part of the cylinder block wall and a exhaust valve in the cylinder head providing a regulated flow of gasses from bottom to top combustion chamber when scavengin... | 02/16/1999 |
| 5769040 | Two cycle internal combustion engine An improved two cycle internal combustion engine, preferably of a stepped piston type, having a unique arcuately shaped transfer deflector valve, which varies by its controlled sliding movement within an inlet passage, the size of exposed opening of an el... | 06/23/1998 |
| 5697332 | Combustion controller for a spark ignition type two-cycle engine A combustion controller for a two-cycle engine which enables to cause self firing always at the optimum timing is provided. The combustion controller comprises an exhaust control valve 15 provided in the vicinity of an exhaust port 7 of the two-cycle engi... | 12/16/1997 |
| 5605119 | Exhaust control valve for engine An exhaust control valve arrangement for a two cycle internal combustion engine for altering the compression ratio to provide optimum running under all conditions. An arrangement is provided or cleaning the exhaust control valve and its surrounding cooper... | 02/25/1997 |
| 5586525 | Air/fuel mixture supply device for a two-stroke internal-combustion engine Air/fuel mixture supply device for a two-stroke internal-combustion engine, of the type with scavenging by compressed air in the casing, comprising at least one cylinder, a piston capable of reciprocating motion in the cylinder, and a scavenging-air compr... | 12/24/1996 |
| 5575246 | Operational control device for two-cycle engines A two-cycle crankcase compression diesel engine having a scavenge control system for controlling the amount of scavenging flow and an exhaust control system for controlling the effective compression ratio and the effective flow area of the exhaust system.... | 11/19/1996 |
| 5521000 | Polymer composite reed for a reed valve A polymer composite reed for a reed valve is provided, wherein the reed has improved mechanical properties as a result of its construction and is highly resistant to chemical and thermal attack. The improved mechanical properties of the reed are primarily... | 05/28/1996 |
