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7614422 Reed valve assembly  
The reed valve assembly of the present invention includes a reed cage and a retainer that includes in once piece two or more reed petals. The retainer is independently interlockable with the reed...
7520253 Two-stroke internal combustion engine  
A cylinder bore ( 4 ) of a two-stroke internal combustion engine ( 1 ) has first scavenging ports ( 12 ) and second scavenging ports ( 13 ) inside. The first scavenging ports ( 12 ) are nearer to...
7458344 Motorcycle engine method and apparatus  
An assembly modification of an existing two-stroke single cylinder 43 CC to 52 CC combustion engine. The assembly substantially increases the horsepower of the stock two-stroke engines. The...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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)...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
5390633 Reed valve mechanism for reciprocating machine  
A number of embodiments of improved reed valve mechanisms for reciprocating machines wherein an arrangement is provided by employing a magnet releasably restraining the valve element in one of its...
5379731 Multicyclinder two stroke cycle engine  
A two stroke cycle engine cylinder block (9) has exhaust ports (14) controlled by power valves which rotate on an axis extending longitudinally of the block (9). Along this axis the block (9) has a...
5370088 Two cycle engine  
An improved reed valve arrangement for a two cycle engine wherein in addition to the normal reed valve elements and stopper plates, there are provided rectifier plates that define a flow passage so...
5341775 Exhaust timing controller for two-stroke cycle engine  
An exhaust timing controller for a two-stroke cycle engine includes an exhaust timing control valve for changing a height of an open edge portion on a top dead center side of an exhaust port...
5337707 Internal combustion engine  
The present invention includes an internal combustion engine having at least one piston reciprocating within a cylinder, and an exhaust port allowing communication of the cylinder with an exhaust...
5331929 Cylinder head for internal combustion engine and a process of operating same  
A cylinder head for an internal combustion engine of either a two-cycle operation or a four-cycle operation is disclosed. The cylinder head includes an intake port, an exhaust port, a dual-function...
5315962 Valves for a duct, and two-stroke combustion engine incorporating the valves  
Rotating valves are set forth especially for use in two stroke internal combustion engines. The valve has two rotating parts which come into tangential pseudocontact with each other. Each rotating...
5285753 Two-stroke engine with selective control of the charge introduced in the combustion chamber  
A two-stroke engine which includes a cylinder in which a piston moves with a device being provided for allowing the feeding of a charge under pressure to the cylinder and at least two inlet ports...
5261359 Reciprocating 2-stroke cycle internal combustion engine  
A superchargeable multi-cylinder 2-stroke cycle internal combustion engine employs opposite reciprocating mult-port slide valves in guideways on opposite sides of the engine block, to open and...
5247912 Reed valve mechanism and method for constructing same  
An improved apparatus and method of construction of a reed valve mechanism having a cushioned reed valve seat is disclosed. The present invention provides a smooth resilient overlay plate which is...
5243934 Multiple stage reed valves for use in internal combustion engines  
The present invention provides improved multiple stage reed valve construction for internal combustion engines. The reed valves comprise first stage reed valves with multiple ports in the first...
5220890 Variable compression device for two cycle diesel engine  
A variable compression ratio mechanism for a two cycle diesel engine embodying auxiliary exhaust passages and auxiliary exhaust ports that communicate with the cylinder above the main exhaust ports...
5143027 Reed valves for two stroke engines  
The invention provides improved reed constructions for use in a reed valve assembly suitable for use in the induction porting of two-stroke internal combustion engines. The reeds incorporate...
5133309 Multi-poppet valve type two cycle engine  
In an engine wherein there is only one exhaust valve per cylinder, the single exhaust valve is maintained closed while an inlet valve, via which an air-fuel mixture is exclusively admitted to the...
5111778 Auxiliary exhausting device  
An auxiliary exhausting device for improving the scavenging efficiency and the combustion efficiency of a two-stroke engine is provided. The auxiliary exhausting device includes an inner rotating...
5107801 Electromagnetic auxiliary exhausting device  
An electromagnetic auxiliary exhausting device enabling a two-stroke engine to have an improved scavenging efficiency and an improved combustion efficiency is provided. The device includes an...
5081961 Internal combustion engine with rotary exhaust control  
A rotary commutator valve that is located at the exhaust ports of the cylinder of an internal combustion, reciprocal engine for regulating the flow of exhaust and allowing the exhaust ports to be...
Matches 1 - 50 out of 95 1 2 >